Archives April 2022

Thermal solution for EMS motor management system

Thermal Interface Materials Designed for Cooling Electronic Components

With the development of the new energy vehicle industry, new forces of new energy vehicle manufacturing continue to emerge, and automotive intelligence also develops rapidly, and technology companies have deployed automotive electronics.
As people have higher and higher requirements for driving comfort, safety, entertainment, economy and other performance, the number of electronic components in the car is also increasing, and the automotive electronic system is also complicated, which is bound to its safety and reliability. put forward higher requirements.

High temperature is an acceleration factor for the aging of electronic components. Poor heat dissipation design will seriously affect the reliability, safety, and durability of electronic components. Cars will also produce bad noise and vibration during driving, causing auto manufacturers to maintain product warranty maintenance. , vehicle quality satisfaction and other issues.

Cohetion series thermal conductivity products have mature thermal management material solutions in new energy vehicle battery pack, motor controller (MCU), body electronic control (ECU), vehicle charger, chassis control, vehicle entertainment and other systems, which can provide heat dissipation /Heat soaking/thermal conduction/thermal insulation and other series of product supporting solutions to help customers achieve the safety and reliability of automotive electronic products.

Thermal Solution for EMS Motor Management System

Compared with traditional industrial motors, new energy vehicle motors have higher requirements on power density, and the increase in power density will inevitably pose higher challenges to the heat dissipation design of the motor management system.

thermal pad

EMS (pure electric bus) rated voltage: 500V;
Rated power: 80kw~200kw;
Cooling method: water cooling

This cooling solution can use Cohetion thermal pad LC200R series between the motor controller and the radiator and combine with water cooling, which can effectively reduce the thermal resistance of the system, improve the power density of the system, and enhance the module’s ability to resist mechanical vibration and mechanical shock. Application requirements for long-term vibration of electric buses.

thermal sheet

LC200R series thermal pads are materials with high thermal conductivity, with breakdown voltage greater than 10Kv/mm, high tear strength, low thermal resistance under low pressure, self-adhesive and easy to operate.

How to use: Fill between the transformer on the power board and the aluminum die-casting shell to improve thermal conductivity.

Thermal solution for BMS battery management system

Thermally Conductive Interface Materials Designed for Cooling Electronic Components

Program overview

With the development of the new energy vehicle industry, new forces of new energy vehicle manufacturing continue to emerge, and automotive intelligence also develops rapidly, and technology companies have deployed automotive electronics.

As people have higher and higher requirements for driving comfort, safety, entertainment, economy and other performance, the number of electronic components in the car is also increasing, and the automotive electronic system is also complicated, which is bound to its safety and reliability. put forward higher requirements.

High temperature is an acceleration factor for the aging of electronic components. Poor heat dissipation design will seriously affect the reliability, safety, and durability of electronic components. Cars will also produce bad noise and vibration during driving, causing auto manufacturers to maintain product warranty maintenance. , vehicle quality satisfaction and other issues.

Cohetion series thermal conductivity products have mature thermal management material solutions in new energy vehicle battery pack, motor controller (MCU), body electronic control (ECU), vehicle charger, chassis control, vehicle entertainment and other systems, which can provide heat dissipation /Heat soaking/thermal conduction/thermal insulation and other series of product supporting solutions to help customers achieve the safety and reliability of automotive electronic products.

Thermal solution for BMS battery management system

BMS battery management system, commonly known as battery nanny, is mainly to ensure that the battery pack works within a safe range, provide information required for vehicle control, deal with abnormal situations in time, according to ambient temperature, battery status and online fault diagnosis, charging control, automatic balance, thermal management, etc.

BMS battery management system

BMS needs to perform a lot of calculations and signal control when it is working. As it develops in the direction of simplicity and miniaturization, heat must be generated inside it. In order to avoid affecting its normal operation, the heat must be transferred out. The thermal interface material is filled between the heat dissipation components to efficiently solve the problems of heat conduction, insulation and shock absorption.

BMS rated voltage: 5V~12V; heat dissipation method: aluminum shell heat dissipation

The heat dissipation scheme can use Cohetion thermal conductive silicone gasket LCP200 series. LCP200 is a super soft material with high thermal conductivity, which has low stress on the structure and plays the role of buffer protection. Thermal resistance, can cut different shapes according to customer needs, high and low temperature resistance, anti-oxidation, long-term use of product performance is stable and reliable.

thermal pad

How to use: Attach the electronic original pin corner surface on the back of the PCB;

Function 1: Conduct the heat of the electronic components to the shell to dissipate heat;

Function 2: The function of covering the pin surface to prevent leakage and piercing of the shell to protect the electronic originals.

EV Battery solution – Thermal interface material for cooling electronic components

EV Battrey Solution

NEW ENERGY VEHICLE SOLUTIONS

The importance of thermal management system

The heat-related issues of the battery are the key factors that determine its performance, safety, life and cost. First of all, the temperature level of lithium-ion batteries directly affects their energy and power performance in use. When the temperature is low, the available capacity of the battery will rapidly decay. Charging the battery at a too low temperature (such as below 0°C) may cause an instantaneous voltage overcharge phenomenon, which will cause internal lithium deposition and cause a short circuit.

Secondly, the heat-related issues of lithium-ion batteries directly affect the safety of the batteries. Defects in the manufacturing process or improper operation during use may cause partial overheating of the battery, which will cause a chain exothermic reaction, and eventually cause serious thermal runaway events such as smoke, fire or even explosion, which threatens the lives of vehicle drivers and passengers Safety.

In addition, the operating or storage temperature of lithium-ion batteries affects their service life. The suitable temperature of the battery is about 10~30°C, too high or too low temperature will cause the battery life to decay quickly. The large-scale power battery makes the ratio of its surface area to volume relatively reduced, the internal heat of the battery is not easy to dissipate, and it is more likely to have problems such as uneven internal temperature and excessive local temperature rise, which further accelerates battery degradation, shortens battery life, and increases users’total cost.

thermal insulation solution

The battery thermal management system is one of the key technologies to deal with battery heat-related issues and ensure the performance, safety and life of power batteries. The main functions of the thermal management system include: 

1) Effective heat dissipation when the battery temperature is high, to prevent thermal runaway accidents; 

2) Warm-up when the battery temperature is low, increase the battery temperature, and ensure the charging and discharging performance at low temperatures And safety; 

3) Reduce the temperature difference in the battery pack, inhibit the formation of local hot zones, prevent the battery from decaying too quickly at high temperature locations, and reduce the overall life of the battery pack.

Tesla Roadster thermal management system

THE THERMAL MANAGEMENT SYSTEM OF TESLA ROADSTER BATTERY

Tesla Motors’ Roadster pure electric vehicle uses a liquid-cooled battery thermal management system. The vehicle-mounted battery pack composed of 6831 18650-type lithium-ion batteries, of which 69 connected in parallel to form a set (brick), 9 sets connected in series to form a sheet, and finally 11 layers stacked in series. The cooling fluid of the battery thermal management system is a mixture of 50% water and 50% ethylene glycol.

Figure 1. (a) is the thermal management system inside the sheet. The cooling pipe arranged in a zigzag between the batteries, and the coolant flows inside the pipe to take away the heat generated by the battery. Figure 1. (b) is a schematic diagram of the structure of the cooling pipe. The inside of the cooling pipe divided into four channels, as shown in Figure 1.(c). In order to prevent the gradual increase in the temperature of the coolant during the flow of the coolant, the heat management system adopts a two-way flow field design, and the two ends of the cooling pipe are both the liquid inlet and the liquid outlet, as shown in the figure. As shown in 1(d). Fill between batteries and between batteries and pipes with materials with electrical insulation but good thermal conductivity . The functions are: 

1) Change the contact form between the battery and the heat dissipation pipe from line contact to surface contact; 

2) Yes It is beneficial to improve the temperature uniformity between the single cells; 

3) It is beneficial to increase the overall heat capacity of the battery pack, thereby reducing the overall average temperature.

Through the above thermal management system, the temperature difference of the individual cells in the roadster battery pack controlled within ±2°C. A report in June 2013 showed that after driving 100,000 miles, the capacity of the roadster battery pack can still maintained at 80%~85% of the initial capacity, and the capacity degradation is only obviously related to the mileage, but is related to the ambient temperature. The relationship between vehicle age is not obvious. The achievement of the above results depends on the strong support of the battery thermal management system.

thermal sheet

Heat dissipation principle of Tesla battery thermal management system

HEAT DISSIPATION PRINCIPLE OF TESLA BATTERY THERMAL MANAGEMENT SYSTEM

Cohetion technology’s thermal solutions ensure that your car battery performance is more stable, make your battery pack life cycle longer, and let your battery pack perform its best.

Heat dissipation principle: When the battery is working, a lot of heat generated. The heat is transferred to the water-cooled tube by the thermal sheet, and then the water-cooled tube transferred to the coolant. The liquid in the water-cooled tube flows in the battery pack to remove the heat.

Heat dissipation principle of battery thermal management system of a well-known domestic automobile manufacturer

The principle of Thermal dissipation: the use of a fan to actively dissipate heat, and the fan supplies the wind, and the wind blows toward the battery flow channel to heat the inside of the battery pack.

Heat dissipation principle: Because the temperature difference inside the battery pack is not controlled within 5°C, a thermal silicone sheet is attached to the upper and lower parts of the battery pack, and the silicone sheet guides the temperature to the outer aluminum shell. The temperature difference of the entire battery module controlled within 5°C. It meets the requirements of the battery pack design, which makes the battery pack longer life and more stable performance during driving.

thermal gel

Heat dissipation principle: The battery pack adopts passive heat dissipation. A thermal pad pasted between the battery pack and the aluminum heat sink. The silicone sheet transfers the temperature to the aluminum plate, and the aluminum plate exchanges heat with the air.

Heat dissipation principle: The battery pack adopts passive heat dissipation. A cooling pad pasted between the battery pack and the aluminum radiator. The silicone sheet transfers the temperature to the aluminum radiator, and the aluminum radiator exchanges heat with the air.

OBC Car Charger Thermal Solution

Thermally Conductive Interface Materials Designed for Cooling Electronic Components

With the development of the new energy vehicle industry, new forces of new energy vehicle manufacturing continue to emerge, and automotive intelligence also develops rapidly, and technology companies have deployed automotive electronics.

As people have higher and higher requirements for driving comfort, safety, entertainment, economy and other performance, the number of electronic components in the car is also increasing, and the automotive electronic system is also complicated, which is bound to its safety and reliability. put forward higher requirements.

High temperature is an acceleration factor for the aging of electronic components. Poor heat dissipation design will seriously affect the reliability, safety, and durability of electronic components. Cars will also produce bad noise and vibration during driving, causing auto manufacturers to maintain product warranty maintenance. , vehicle quality satisfaction and other issues.

Cohetion series thermal conduction products have mature thermal management material solutions in new energy vehicle battery pack, motor controller (MCU), body electronic control (ECU), vehicle charger, chassis control, vehicle entertainment and other systems, which can provide heat dissipation /Heat soaking/thermal conduction/thermal insulation and other series of product supporting solutions to help customers achieve the safety and reliability of automotive electronic products.

OBC Car Charger Thermal Solution

The on-board OBC is one of the important parts of the electric vehicle power system. Due to the high-power charging and discharging, huge heat is generated inside it. If it cannot be dissipated in time, the life and performance of the internal components will be greatly reduced. The electronic devices in the vehicle OBC are all encapsulated in the housing, and the heat source (electronic device/chip/MOSFET, etc.) needs to be in close contact with the inner wall of the housing to dissipate heat efficiently.

thermal conductive gel

OBC rated voltage: 220V; output power: 18kw; cooling method: air cooling

The heat dissipation scheme can use Cohetion thermal conductive gel LCF300 with a thermal conductivity of 3.0W/m·k, which can effectively fix small electronic components and prevent damage caused by bumps; fill between irregular heat sources (transformers, capacitors, etc.) and the radiator so that the heat can be well conducted to the radiator; fill the gap between the PCB board and the shell to protect the stability of the internal structure.

thermal conductive gel

At the same time, Cohetion thermal conductive gasket LCP200 can be used. The gasket is made of glass fiber cloth as a reinforcing material and processed by a special process. It is a very soft thermal conductive silicone gasket with excellent compressibility. The components are in close contact, with anti-puncture and anti-leakage functions.

thermal pad

How to use:

  1. Fix small electronic components to prevent damage caused by bumps, and conduct heat from components to the shell for heat dissipation
  2. Fill the gap between the irregular heat source (transformer, capacitor, etc.) and the radiator, so that the heat can be well conducted on the radiator
  3. Fill the gap between the PCB board and the shell to protect the stability of the internal structure.

Thermal solution for chassis control system

Thermally Conductive Interface Materials Designed for Cooling Electronic Components

With the development of the new energy vehicle industry, new forces of new energy vehicle manufacturing continue to emerge, and automotive intelligence also develops rapidly, and technology companies have deployed automotive electronics.

As people have higher and higher requirements for driving comfort, safety, entertainment, economy and other performance, the number of electronic components in the car is also increasing, and the automotive electronic system is also complicated, which is bound to its safety and reliability. put forward higher requirements.

High temperature is an acceleration factor for the aging of electronic components. Poor heat dissipation design will seriously affect the reliability, safety, and durability of electronic components. Cars will also produce bad noise and vibration during driving, causing auto manufacturers to maintain product warranty maintenance. , vehicle quality satisfaction and other issues.

Cohetion series thermal conduction products have mature thermal management material solutions in new energy vehicle battery pack, motor controller (MCU), body electronic control (ECU), vehicle charger, chassis control, vehicle entertainment and other systems, which can provide heat dissipation /Heat soaking/thermal conduction/thermal insulation and other series of product supporting solutions to help customers achieve the safety and reliability of automotive electronic products.

Thermal solution for chassis control system

With the rapid development of large-scale integrated circuit and microcomputer technology, in order to ensure the safety, power and handling stability of the vehicle, the vehicle chassis operating system has been given more important tasks. Take the new energy vehicle as an example, its chassis system needs to adapt to the diversity of vehicle energy sources, highly integrated system modules, and at the same time does not limit the design of the interior space and exterior shape of the vehicle, all of which put forward higher requirements for the thermal management of the chassis system. .

thermal pad

Rated voltage of chassis control system: 5V~12V; heat dissipation method: aluminum shell heat dissipation

The heat dissipation scheme can use the cohetion thermal pad LC300 series. LC300 has high resilience and good electrical insulation properties. It is a cost-effective thermal conductive gap filling material, which fully meets the filling and sealing between electronic components and aluminum die-casting shells. Thermal function.

thermal pad

How to use:

  1. Filling heat conduction between the transformer on the power board and the aluminum die-casting shell;
  2. Filling heat conduction between the diode and the copper heat sink on the power board.

Thermal solution for ECU body electronic control system

Thermally Conductive Interface Materials Designed for Cooling Electronic Components

With the development of the new energy vehicle industry, new forces of new energy vehicle manufacturing continue to emerge, and automotive intelligence also develops rapidly, and technology companies have deployed automotive electronics.

As people have higher and higher requirements for driving comfort, safety, entertainment, economy and other performance, the number of electronic components in the car is also increasing, and the automotive electronic system is also complicated, which is bound to its safety and reliability. put forward higher requirements.

High temperature is an acceleration factor for the aging of electronic components. Poor heat dissipation design will seriously affect the reliability, safety, and durability of electronic components. Cars will also produce bad noise and vibration during driving, causing auto manufacturers to maintain product warranty maintenance. , vehicle quality satisfaction and other issues.

Cohetion series thermal conductivity products have mature thermal management material solutions in new energy vehicle battery pack, motor controller (MCU), body electronic control (ECU), vehicle charger, chassis control, vehicle entertainment and other systems, which can provide heat dissipation /Heat soaking/thermal conduction/thermal insulation and other series of product supporting solutions to help customers achieve the safety and reliability of automotive electronic products.

Thermal solution for ECU body electronic control system

The ECU electronic control unit, also known as the car computer, is a special microcomputer controller for the car. ECU generally has fault self-diagnosis, protection function and adaptive program. With the increase in the degree of automobile intelligence, the functions of ECUs have become more and more complex, and the problem of heat dissipation has gradually become one of the bottlenecks in improving the performance of automobile ECUs. The ECU electronic control unit generally needs to be sealed, and it works in a high temperature environment for a long time, which puts forward higher requirements for the heat dissipation of the ECU circuit board.

ECU

ECU rated voltage: 5V~12V; heat dissipation method: aluminum shell heat dissipation

The heat dissipation solution can use Cohetion thermal conductive silicone gasket LC120 series. LC120 is a thermal conductive gasket developed for low compression force, low thermal resistance and high flexibility. It has double-sided self-adhesion and can be Stable work, meet the flame retardant grade requirements of UL94V0.

thermal pad

How to use:
1: Filling heat conduction between the transformer on the power board and the aluminum die-casting shell;

2: Filling heat conduction between the diode and the copper heat sink on the power board.

Thermal solution for sweeping robot

Introduction of sweeping robot:

In recent years, with the rapid development of computer technology and artificial intelligence science, intelligent robot technology has gradually become a hot spot in the field of modern robot research. Among them, service robots have opened up a new field of robot applications.

With the improvement of people’s living standards, more and more people pay attention to a healthy and comfortable home environment. Buying a house and decorating have become hot topics that people talk about after dinner, but the dirty and tiring cleaning work after decoration has become another major problem that plagues housewives. For many families, cleaning robots have become an essential small household appliance for cleaning homes.

Sweeping robots, also known as automatic cleaners, smart vacuum cleaners, robot vacuum cleaners, etc., are a type of smart household appliances that can automatically complete the floor cleaning work in the room with certain artificial intelligence. Generally, brushing and vacuuming are used to absorb the debris on the ground into its own garbage storage box, so as to complete the function of ground cleaning.

sweeping robot

The working principle of the sweeping robot:

The automatic sweeping robot integrates mechanics, electronic technology, sensor technology, computer technology, control technology, robotics, artificial intelligence and many other disciplines.

The sweeping robot is controlled by a microcomputer, which can realize automatic navigation and clean and vacuum the ground. The collision head can avoid and bypass the obstacles in front, so that the corners it reaches can be cleaned. At the same time, the design of two large side sweeping wheels, The corners and the ground can be swept more thoroughly and cleanly. The relative rotation of the two cleaning wheels prevents the garbage from slipping away from the bottom of the body, and the cleaning is more complete. It can enter the garbage collection box more regularly and smoothly, and by installing photoelectric sensors on the front wheel and the power box of the sweeping wheel, the robot can have the function of automatically preventing the body from being stuck and the sweeping wheel being stuck. It automatically retreats or shuts down, and is equipped with an infrared reflection detector on the collision head, which can automatically determine whether the front is a cliff and automatically bypass it.

Thermal solution for sweeping robot

The mechanical structure of the sweeping robot:

The sweeping robot mainly includes the following parts:

  1. Walking drive wheel and drive motor. This part mainly ensures that the robot can move in the plane. Infrared switches are installed on the front and sides of the housing as a collision detection sensor. The 3 infrared switches on the bottom are used as step detection sensors to prevent falling. The drive wheel is equipped with a photoelectric encoder disk, which can detect and control the wheel speed, and realize positioning and path planning. At the same time, the ultrasonic sensor is also expanded for the needs of precise positioning;
  2. Cleaning mechanism. Use the motor to drive the two cleaning brushes, so that the left cleaning brush rotates clockwise, and the right side rotates counterclockwise, so that the dust can be concentrated at the suction port when cleaning the dust, so as to prepare for the work of the sweeping mechanism;
  3. Sweeping mechanism. Create a strong suction to suck the dust into the dust storage box;
  4. The wiping mechanism. After cleaning and sweeping, use the cleaning cloth installed under the casing to wipe off the fine dust remaining on the ground to ensure the quality of the cleaning work.
sweeping robot

With the rapid development of computer technology, artificial intelligence technology, sensing technology and mobile robot technology in recent years, the research and development of sweeping robot control system has a solid foundation and good development prospects. The control and working environment of sweeping robots are often uncertain or changeable, so safety, reliability, anti-interference and cleanliness must be taken into account.

It is worth mentioning that the selection of the adhesive solution for the cleaning robot is of particular significance. Adhesives are used in a variety of applications on robot vacuums, from positioning microcircuits to bonding large motor coils. In addition to mechanical fastening, electrical adhesives also require special properties such as thermal conductivity, insulation, vibration damping, sealing and substrate protection.

Glue requirements for sweeping robots:

  1. Power waterproof;
  2. Bonding and fixing of circuit board components;
  3. Excellent heat dissipation for heating components;
  4. The circuit board is moisture-proof, mildew-proof, acid-alkali-proof, dust-proof, shock-proof and salt-fog proof;
  5. It has the characteristics of dustproof, waterproof, shock resistance, compression resistance, high temperature resistance and low temperature resistance.
thermal pad

Glue scheme for sweeping robot:

Glue dots for sweepersGlue function categoryFunctional characteristics of adhesives
Electronic components heat dissipationThermal pad, thermal grease, thermal mudIt has excellent thermal conductivity, heat dissipation, electrical, insulation, moisture-proof, shock-proof, and aging resistance. It can work for a long time in the temperature range of -40℃-180℃, which effectively solves the heat dissipation problem of the sweeping robot and ensures the stability of the sweeping robot.
circuit boardThree-proof glueIt has excellent insulation, moisture-proof, anti-leakage, shock-proof, dust-proof, anti-corrosion, anti-aging, corona resistance and other properties
Power pottingPotting compoundIt has excellent electrical performance and insulating ability. After potting, it can effectively improve the insulating ability between internal components and lines, and improve the stability of electronic components.
Fixing circuit board componentsfixed sealantStrong bonding ability, fast curing speed, resistance to alternating heat and cold, good electrical insulation, excellent acid and alkali resistance, aging resistance, UV resistance, no solvent, no pollution, no corrosion, easy to use

Due to the different structure, operating environment and process of the sweeping robot, the glue application plan is different. For more detailed plans, please contact Cohetion

Thermal solution for car computer

Car computer introduction:

In-vehicle computer is also called in-vehicle tablet computer, in-vehicle computer system.
The on-board computer is an automotive information product specially developed for the special operating environment of the car and the characteristics of the electrical circuit, which has the functions of high temperature resistance, dust resistance and shock resistance, and can be integrated with the automotive electronic circuit. It is a highly integrated automotive multimedia entertainment information center. It can realize all home computer functions, support in-car Internet access, audio and video entertainment, satellite positioning, voice navigation, games, telephone and other functions, and can also realize specific functions such as visual reversing and fault detection.

Thermal solution for car computer

The vehicle display control system is the most important device to provide the driver with the required information. With the emergence of new human-vehicle interaction concepts such as head-up display and rear-seat in-vehicle entertainment display system and the demand for consumption upgrades, the overall vehicle display market has maintained a relatively high growth rate. Especially in the context of the trend of intelligent and visual development of automobiles, the vehicle display control system must not only satisfy various display effects such as text, pictures, audio/video, etc., but also need to introduce the Internet of Vehicles, artificial intelligence, big data, etc. To meet intelligent functions such as instant information release, voice interaction, communication, and precise navigation, a professional, reliable and highly integrated hardware platform must provide basic support to realize this series of functions.

car computer

From the perspective of technical requirements, in-vehicle display computer control systems mostly use industrial tablet computers as their hardware carriers. Because it is known for its performance stability, and its integrated processing capability is better than that of ordinary tablet computers, it supports the expansion of a variety of intelligent scene applications, so it is deeply concerned and sought after by customers in the industry. In terms of function, industrial tablet PCs mostly use low-power high-performance processors, which have the characteristics of dustproof, waterproof, shock resistance, compression resistance, high temperature resistance, low temperature resistance, etc., which can maximize the program to meet the product development needs of customers at different levels.
With the development of science and technology, the vehicle display computer control system is not only widely used in the field of vehicle display control, but also in industrial automation, intelligent transportation, intelligent buildings, financial information processing, outdoor advertising and so on. In order to better optimize the user experience, the on-board computer control system is constantly evolving. However, while improving the function, an effective cooling solution must be adopted to maintain a stable temperature and ensure work efficiency.

thermal pad

Glue requirements for car computer:

  1. High bonding strength to the chassis frame;
  2. Excellent heat dissipation for heating components;
  3. Environmental protection, non-toxic, with testing certification and qualifications;
  4. Moisture-proof, anti-static, dust-proof, mildew-proof, salt spray resistance, etc. for circuit boards;
  5. It has the characteristics of dustproof, waterproof, shock resistance, compression resistance, high temperature resistance and low temperature resistance.
grease

Glue scheme for in-vehicle computer:

Glue point for car computerGlue function categoryFeatures of glue
circuit boardThree-proof glueIt has excellent insulation, moisture-proof, anti-leakage, shock-proof, dust-proof, anti-corrosion, anti-aging, corona resistance and other properties
Radiator coolingThermal grease, thermal sheet, thermal conductive gelIt has excellent thermal conductivity, heat dissipation, electrical, insulation, moisture-proof, shock-proof, aging resistance, and can work for a long time in the temperature range of -40℃~180℃
PCB electronic componentsElectronic sealantStrong bonding ability, fast curing speed, resistance to alternating heat and cold, good electrical insulation, excellent acid and alkali resistance, aging resistance, UV resistance, no solvent, no pollution, no corrosion, easy to use
Chassis frame and TP screenbonding glueHigh initial strength, specific performance of wear resistance, puncture resistance, corrosion resistance, rolling resistance, flammability, non-polluting, insulation, good fixation
thermal pad

Due to the different application structure, practical operating environment and process of the vehicle computer, the glue application plan is different. For more detailed plans, please contact Cohetion.

Thermal Solution for Car Navigator

Introduction of car navigator:

A car navigator is a driving assistance device that can help car users accurately locate the current driving position, calculate the itinerary according to the established destination, and guide the car user to the destination through multimedia methods such as map display and voice prompts. GPS is working.

Thermal Solution for Car Navigator

Car navigator structure:

The car navigator includes a chassis, a power supply, a core circuit board and a display panel. The chassis is usually a rectangular metal box with one end open. The power supply and the core circuit board are fixedly installed in the chassis, and the display panel is then installed in the chassis. The open end is closed; among them, the power supply is used to provide the system working voltage of the vehicle navigation system, and the core circuit board mainly provides communication, Operation, scheduling and processing functions, the display panel mainly provides display interface and input operation buttons.

Car Navigator

Glue requirements for car navigator:

  1. High bonding strength to the chassis frame;
  2. Excellent heat dissipation for heating components;
  3. Environmental protection, non-toxic, with testing certification and qualifications;
  4. Moisture-proof, anti-static, dust-proof, mildew-proof, salt-fog resistance, etc. for circuit boards.

Glue scheme for car navigator:

Glue point for car navigatorGlue function categoryFeatures of glue application
circuit boardThree-proof glueIt has excellent insulation, moisture-proof, anti-leakage, shock-proof, dust-proof, anti-corrosion, anti-aging, corona resistance and other properties
Radiator coolingThermal pad, thermal grease, thermally conductive gel, thermally conductive mudIt has excellent thermal conductivity, heat dissipation, electrical, insulation, moisture-proof, shock-proof, aging resistance, and can work for a long time in the temperature range of -40℃~180℃
PCB electronic componentsThermally conductive adhesiveStrong bonding ability, fast curing speed, resistance to alternating heat and cold, good electrical insulation, excellent acid and alkali resistance, aging resistance, UV resistance, no solvent, no pollution, no corrosion, easy to use
Chassis frame and TP screenbonding glueHigh initial strength, specific performance of wear resistance, puncture resistance, corrosion resistance, rolling resistance, flammability, non-polluting, insulation, good fixation

Due to the differences in the structure, process and application environment of the car navigation system, the glue solution for specific products may be different. If you need other glue solutions, please contact Cohetion

Power Amplifier Thermal Solution

Amplifier introduction:

The power amplifier, commonly known as “amplifier”, is the most basic equipment in the audio system. Its task is to amplify the weak electrical signal from the signal source (from the mixer in the professional audio system) to drive the speaker to produce sound.
The power amplifier is the largest family of all kinds of audio equipment. Its function is to amplify the weaker signal input by the audio source equipment and generate enough current to drive the speaker to reproduce the sound. Due to the consideration of power, impedance, distortion, dynamics, as well as different use ranges and control and adjustment functions, different power amplifiers have different internal signal processing, circuit design and production processes.

Power Amplifier Thermal Solution

“Professional power amplifier” is generally used for the amplification of conferences, performances, halls, halls, venues, and halls. The design is based on high output power, perfect protection circuit and good heat dissipation. Therefore, in order to manufacture high-quality power amplifier products, power amplifier manufacturers will use thermal interface materials and adhesive material solutions in the production process.

Glue requirements for amplifiers:

  1. High initial strength;
  2. Strong adhesion to components;
  3. Excellent heat dissipation for heating components;
  4. Environmental protection, non-toxic, with routine testing certification and qualifications;
  5. Circuit board insulation, moisture-proof, dust-proof, mildew-proof, salt spray resistance, etc.
thermal pad
thermal

Glue scheme for power amplifier:

Glue dots for amplifiersGlue function categoryAdhesive Solution Features
heating elementThermal grease, thermal silicone sheetIt has excellent thermal conductivity, heat dissipation, electrical, insulation, moisture-proof, shock-proof, and aging resistance, and can work for a long time in the temperature range of -40℃~200℃
border sealsealantHigh initial strength, specific performance wear resistance, puncture resistance, corrosion resistance, rolling resistance, flammable, non-polluting, insulating
Electronic Componentsfixing glueStrong bonding ability, fast curing speed, resistance to alternating heat and cold, good electrical insulation, excellent acid and alkali resistance, aging resistance, UV resistance, no solvent, no pollution, no corrosion, easy to use
PCB circuit boardThree-proof glueIt has excellent insulation, moisture-proof, anti-leakage, shock-proof, dust-proof, anti-corrosion, anti-aging, corona resistance and other properties
Language »