With the increasing application requirements nowadays, they are for wiring. Requirements are also gradually approaching the limit of the wiring, so the test equipment accuracy test is also increasingly important. Inaccurate or impractical test equipment will cause serious damage to the normal operation of the entire system in the future.
The wire harness product process design is the input and output process of the product. The entire design scheme is based on quality, cost, and operability, and ultimately meets various requirements for product characteristics, while controlling the manufacturing cost. When the process design is unfolded, we must first consider the quality of the product and ensure that the locations of the contacts do not overlap. However, they are large and not designed on the branch. Secondly, the operability of the workers is considered and the difficulty of work is minimized. Finally, the principle of the nearest ground connection is adopted. Try to save wire. Determine the position of the centralized crimping point inside the harness wire harness, the centralized connection method of the internal connection points, and the development of technical requirements. Due to the different branch position, size, and electrical function, location and number of grounding points in different automotive wiring harnesses, the internal connection of the ground wire is diversified.
With the increase of automobile functions and the widespread application of electronic control technology, coupled with the increasing demand for safety, comfort, and economy of automobiles, there are more and more electrical configurations and electrical functions on automobiles. With more and more electrical components, there will be more and more wires; the wiring harness connecting the various electrical components will become more and more complex and the automobile harness will become heavier and heavier. So advanced cars have introduced bus configurations using multiplex systems.
Tools need to be prepared and construction personnel should be familiar with the use, inspection and precautions of various tools. Prepare the necessary heat shrinkable materials and supporting materials, check whether the material is qualified, according to the wiring harness structure, specifications, determine the type of heat shrink material used. The construction site should be kept clean and dry, and the use of torches requires the development of safety measures. The crimp quality of the wire harness core directly affects the service life of the connector and the safe operation of the wire harness.
Filled with inorganic flame retardants, its mechanical strength, elongation at break than non-flame retardant polyolefin sheath material is much worse. Flame-retardant polyolefin sheathing material has low mechanical strength, and the commonly used flame-retardant polyolefin sheathing material has an oxygen index of 25 - 28. The flame-retardant effect is not very good. It is only suitable for applications where the temperature is low, suitable movement or bending, and the flame retardant requirements are not so high. It is not suitable for application in electronic wiring harnesses with high flame retardancy requirements. The halogen-free and low-smoke flame-retardant polyolefin sheath material has good flame retardancy and char formation during combustion, and is suitable for use in electronic harnesses with high halogen-free, low-smoke, and flame-retardant properties.
When the wire is separated from the wire harness and connected with the electrical equipment, if the rated current of the power equipment is small, the cross-section should be small. At this time, the main consideration is whether the wire can withstand the vibration caused by the broken wire. may.
It realizes the computerization and standardization of the process card design under the decentralized network environment of the wire harness manufacturers in the automotive supply chain. It can effectively manage various kinds of process graphic and text information and retrieve it quickly and accurately, achieving a reduction in labor intensity and shortening the process The design cycle removes the efficiency and quality of process design and enhances the competitiveness of the company.
Instead, the push model requires the developer to write code that is connected to the database, execute SQL commands to create a recordset or dataset that matches the fields in the report, and pass the object to the report. This method can connect the connection to the home application and filter the data before receiving the data.
At present, the detection systems adopted by domestic automobile wire harness manufacturers generally can only perform the detection of the continuity of the wire harness, and do not have the function of quantitative detection of the wire harness impedance. Many of the wiring harnesses that pass the inspection at the factory are in use for a period of time. The reason for the problem is that because the impedance of the wire harness does not meet the technical requirements, long-term use will cause the wire harness to become hot and even burn out.