As one of the important components of the automobile, the wire harness is equivalent to the transmission nerve of the automobile and has the function of signal control for the automobile,
It directly affects the quality and performance of a car. Therefore, in addition to meeting the basic performance requirements of the vehicle, the harness design
Its own quality requirements are also very high. The manufacturing of wire harness involves a wide range, many requirements and cumbersome process, so how to achieve high quality and high
The efficiency of manufacturing wire harness is worth studying.
After years of research and development, the application of automotive electronic equipment technology has successfully developed automatic driving, electronic map and power
Optimization system, etc., these technologies are announcing the emergence of intelligent vehicles. Nowadays, intelligent cars have entered ordinary families,The intensity and depth of popularization have been promoted and developed. As an important part of the automobile, the automobile wire harness has also developed, closely following
With the development of automotive electronic technology.
1. Overview of automobile wire harness
Automobile wire harness is an important component connecting various electrical appliances and electronic equipment of the automobile, which plays a role in transmitting electrical signals between electronic equipment and electrical appliances
Its function is to control the electric signal of the car. It can be said that there is no car circuit without wire harness. With the development of modern society
The requirements of cars are getting higher and higher, and the intelligence of cars is also improving, which puts forward higher requirements for automotive wire harness. And car wires
The car connector is matched with the harness. The function of the connector is to realize the rapid connection between wire harnesses and between wire harnesses and other electronic equipment
And blocking devices. With the development of automotive electronic technology and wire harness, higher requirements are put forward for connectors
It should be more flexible and have higher insulation, which can provide better conditions for the conduction of wire bundles, improve the performance of cars and increase the number of cars Reliability and safety. As an important part of automobile wire harness, the design and research of automobile connector has become a hot topic How to improve vehicle performance and intelligence is an important part.
2. Research on the design of automobile wire harness and connector
The most ideal result of the design of wire harness is to use the shortest wire and the most appropriate wire section to ensure that all automotive electrical and electronic equipment
The equipment can work normally. Therefore, there are strict requirements for wire material, quality, conductivity and many other aspects. And the working capacity of wire harness
In addition to the material of the wire itself, it also involves external controllable factors such as the cross-section of the wire, so it is not necessary to select the wire harness
Only the wire itself needs to be considered, which requires researchers' specific operation and practice. Pole is also required for connectors that play the role of connection and connection
High, the friction and wear of the contact end of the connector should be able to withstand the test of the car working for a long time, for easy wear or friction
Materials with insufficient friction should be eliminated as soon as possible. The connector is composed of a base and a contact end, which is destined to be compared with the wire harness,
The research of connector is more complicated.
3. Quality control method in manufacturing process
With the increasing popularity of cars, users have higher and higher requirements for cars. In order to meet the market demand, scientific researchers continue to transform and optimize Make the car more intelligent, which is bound to use more wire harnesses to control the car.
This solves the problem of intelligent vehicle At the same time, it also adds many new problems, such as the complexity of the circuit also increases, which reduces the reliability of the car and increases The difficulty of maintenance increases the quality of the car and occupies a lot of space.
Through research and development, researchers changed the previous dedicated line control that used to be used on the front line to The first line multi-purpose system can save space to the greatest extent, improve the overall efficiency of the system, and make full use of limited resources.
It is with this The method simplifies the number of wire bundles, reduces the occupied space, improves the utilization rate, increases the reliability of vehicles, and improves the intelligence of vehicles,Accelerate the development of automotive intelligence.
The emergence of this practice also puts forward higher requirements for wire bundles, which promotes the production of wire bundlesAnd the manufacture of connectors has also changed. First of all, we should strictly control the selection of raw materials for the manufacture of wire bundles.
In the correspondingIndustry or national standards have clear provisions on performance requirements, but most performance indicators have different requirements on harness performance and requirements
By analyzing and studying wires of different materials, comparing and summarizing the advantages and disadvantages of elder brother's wires, and then according to the requirements of vehicle performance,Choose the appropriate wires.
Secondly, when the performance and quality of raw materials and parts meet the requirements, the manufacturing process of wire harness should be strictly controlled
Processing quality and control of physical quality. Once the intelligence of the car is improved, the application of wire harness will be increased, which will cause wire harness
The increase in number will take up more car space, increase the weight of the car itself, reduce the flexibility and safety of the car, and improve the appearance
It will cause certain impact, so how to reasonably arrange the wire harness to avoid the above problems is also an important issue. This needs to be in the wire harness book
Considering the conduction function of the body, how to solve the problem perfectly without using too many wire harnesses, so the cross-section of the wire harness becomes the solution
A convenient way to resolve. In order to adapt to the improvement of vehicle intelligence and the change of wire harness, without changing the quality and space of the vehicle, the wire
The selection of section is very important. Determine the wire section according to the determined wire. The selection of wire section is based on the voltage of the line
The change of ambient temperature and the strength of wire machinery. The selection of wire cross-section should consider the bearing capacity of the wire itself, which should not exceed that of electricity
The maximum value that the wire can bear cannot fail to give full play to the bearing capacity of the wire. For the pursuit of the final result and let the wire exceed
Load carrying circulation will accelerate the aging of wires, increase the probability of accidents, and reduce the safety of vehicles. Therefore, for the wire section
It must be a comprehensive choice made according to various requirements. A change in value will lead to changes in wires or wire sections, because
When selecting wires and wire sections, we should consider the variation range of this value and accurately calculate the minimum of each value
Value and maximum value, and then select the most suitable wire after comparison, and then determine the wire section is the most scientific method. For car connector
The choice of connector needs to be more rigorous. The connector connects wires and various electronic equipment and parts, which is the key to the normal operation of the car. On the right
In the process of selecting connectors, the friction degree and wear resistance of the material itself should be considered, plus the influence of harmful substances in the atmospheric environment,
In terms of the influence of environmental factors on the contact surface, the material selection of connectors should be more strict than that of wire harnesses. Due to car connector
It is composed of plug and socket, so the key to the design of connector is the design of contact and base, in which contact and ground
The coordination and fixation between the contacts and between the contacts and the base is also the core of the design.
Based on this, the material selection of butt contacts has become a top priority. At this stage, the selection of materials is basically a single or multiple of several available alloys
For composite manufacturing, the specific selection is determined according to the type of contact, the frequency of plug-in, and the working conditions and environment. For contacts
The plugging force of is also one of the important factors to be considered. In actual use, the difference of plugging force will directly affect the normal use and operation of the connector,
It will also increase the wear between connectors and reduce the service life. The actual situation shows that when designing the connector, we should comprehensively consider the contact structure
Coating quality of contact parts and contact arrangement accuracy. Then integrate the electrical resistance, mechanical performance, environment and other factors of the contact,
In order to design better connectors.
4. Concluding remarks
Improving the level of automotive electronic equipment is an important prerequisite for automotive development, but also an important step. As a vehicle wire harness for connection and transmission, in
In the process of design and manufacturing, we must get faster development in quality and technology, and get rid of the lag of wire harness development and automobile development in the past
Status. Only in this way can it develop synchronously with automotive electronic equipment.
It directly affects the quality and performance of a car. Therefore, in addition to meeting the basic performance requirements of the vehicle, the harness design
Its own quality requirements are also very high. The manufacturing of wire harness involves a wide range, many requirements and cumbersome process, so how to achieve high quality and high
The efficiency of manufacturing wire harness is worth studying.
After years of research and development, the application of automotive electronic equipment technology has successfully developed automatic driving, electronic map and power
Optimization system, etc., these technologies are announcing the emergence of intelligent vehicles. Nowadays, intelligent cars have entered ordinary families,The intensity and depth of popularization have been promoted and developed. As an important part of the automobile, the automobile wire harness has also developed, closely following
With the development of automotive electronic technology.
1. Overview of automobile wire harness
Automobile wire harness is an important component connecting various electrical appliances and electronic equipment of the automobile, which plays a role in transmitting electrical signals between electronic equipment and electrical appliances
Its function is to control the electric signal of the car. It can be said that there is no car circuit without wire harness. With the development of modern society
The requirements of cars are getting higher and higher, and the intelligence of cars is also improving, which puts forward higher requirements for automotive wire harness. And car wires
The car connector is matched with the harness. The function of the connector is to realize the rapid connection between wire harnesses and between wire harnesses and other electronic equipment
And blocking devices. With the development of automotive electronic technology and wire harness, higher requirements are put forward for connectors
It should be more flexible and have higher insulation, which can provide better conditions for the conduction of wire bundles, improve the performance of cars and increase the number of cars Reliability and safety. As an important part of automobile wire harness, the design and research of automobile connector has become a hot topic How to improve vehicle performance and intelligence is an important part.
2. Research on the design of automobile wire harness and connector
The most ideal result of the design of wire harness is to use the shortest wire and the most appropriate wire section to ensure that all automotive electrical and electronic equipment
The equipment can work normally. Therefore, there are strict requirements for wire material, quality, conductivity and many other aspects. And the working capacity of wire harness
In addition to the material of the wire itself, it also involves external controllable factors such as the cross-section of the wire, so it is not necessary to select the wire harness
Only the wire itself needs to be considered, which requires researchers' specific operation and practice. Pole is also required for connectors that play the role of connection and connection
High, the friction and wear of the contact end of the connector should be able to withstand the test of the car working for a long time, for easy wear or friction
Materials with insufficient friction should be eliminated as soon as possible. The connector is composed of a base and a contact end, which is destined to be compared with the wire harness,
The research of connector is more complicated.
3. Quality control method in manufacturing process
With the increasing popularity of cars, users have higher and higher requirements for cars. In order to meet the market demand, scientific researchers continue to transform and optimize Make the car more intelligent, which is bound to use more wire harnesses to control the car.
This solves the problem of intelligent vehicle At the same time, it also adds many new problems, such as the complexity of the circuit also increases, which reduces the reliability of the car and increases The difficulty of maintenance increases the quality of the car and occupies a lot of space.
Through research and development, researchers changed the previous dedicated line control that used to be used on the front line to The first line multi-purpose system can save space to the greatest extent, improve the overall efficiency of the system, and make full use of limited resources.
It is with this The method simplifies the number of wire bundles, reduces the occupied space, improves the utilization rate, increases the reliability of vehicles, and improves the intelligence of vehicles,Accelerate the development of automotive intelligence.
The emergence of this practice also puts forward higher requirements for wire bundles, which promotes the production of wire bundlesAnd the manufacture of connectors has also changed. First of all, we should strictly control the selection of raw materials for the manufacture of wire bundles.
In the correspondingIndustry or national standards have clear provisions on performance requirements, but most performance indicators have different requirements on harness performance and requirements
By analyzing and studying wires of different materials, comparing and summarizing the advantages and disadvantages of elder brother's wires, and then according to the requirements of vehicle performance,Choose the appropriate wires.
Secondly, when the performance and quality of raw materials and parts meet the requirements, the manufacturing process of wire harness should be strictly controlled
Processing quality and control of physical quality. Once the intelligence of the car is improved, the application of wire harness will be increased, which will cause wire harness
The increase in number will take up more car space, increase the weight of the car itself, reduce the flexibility and safety of the car, and improve the appearance
It will cause certain impact, so how to reasonably arrange the wire harness to avoid the above problems is also an important issue. This needs to be in the wire harness book
Considering the conduction function of the body, how to solve the problem perfectly without using too many wire harnesses, so the cross-section of the wire harness becomes the solution
A convenient way to resolve. In order to adapt to the improvement of vehicle intelligence and the change of wire harness, without changing the quality and space of the vehicle, the wire
The selection of section is very important. Determine the wire section according to the determined wire. The selection of wire section is based on the voltage of the line
The change of ambient temperature and the strength of wire machinery. The selection of wire cross-section should consider the bearing capacity of the wire itself, which should not exceed that of electricity
The maximum value that the wire can bear cannot fail to give full play to the bearing capacity of the wire. For the pursuit of the final result and let the wire exceed
Load carrying circulation will accelerate the aging of wires, increase the probability of accidents, and reduce the safety of vehicles. Therefore, for the wire section
It must be a comprehensive choice made according to various requirements. A change in value will lead to changes in wires or wire sections, because
When selecting wires and wire sections, we should consider the variation range of this value and accurately calculate the minimum of each value
Value and maximum value, and then select the most suitable wire after comparison, and then determine the wire section is the most scientific method. For car connector
The choice of connector needs to be more rigorous. The connector connects wires and various electronic equipment and parts, which is the key to the normal operation of the car. On the right
In the process of selecting connectors, the friction degree and wear resistance of the material itself should be considered, plus the influence of harmful substances in the atmospheric environment,
In terms of the influence of environmental factors on the contact surface, the material selection of connectors should be more strict than that of wire harnesses. Due to car connector
It is composed of plug and socket, so the key to the design of connector is the design of contact and base, in which contact and ground
The coordination and fixation between the contacts and between the contacts and the base is also the core of the design.
Based on this, the material selection of butt contacts has become a top priority. At this stage, the selection of materials is basically a single or multiple of several available alloys
For composite manufacturing, the specific selection is determined according to the type of contact, the frequency of plug-in, and the working conditions and environment. For contacts
The plugging force of is also one of the important factors to be considered. In actual use, the difference of plugging force will directly affect the normal use and operation of the connector,
It will also increase the wear between connectors and reduce the service life. The actual situation shows that when designing the connector, we should comprehensively consider the contact structure
Coating quality of contact parts and contact arrangement accuracy. Then integrate the electrical resistance, mechanical performance, environment and other factors of the contact,
In order to design better connectors.
4. Concluding remarks
Improving the level of automotive electronic equipment is an important prerequisite for automotive development, but also an important step. As a vehicle wire harness for connection and transmission, in
In the process of design and manufacturing, we must get faster development in quality and technology, and get rid of the lag of wire harness development and automobile development in the past
Status. Only in this way can it develop synchronously with automotive electronic equipment.
