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Circuit board design method of commercial vehicle electric appliance box and circuit board

A design method and circuit board technology, which is applied in the direction of assembling printed circuits with electrical components, printed circuits, and printed circuit manufacturing, can solve the problems of high cost and heavy weight, reduce solder paste, save manufacturing costs, and ensure electrical connection The effect of intensity

Active Publication Date: 2021-02-12
HENAN THB ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the technical problems of high cost and heavy weight existing in the existing circuit boards of automotive electrical boxes, the present invention proposes a circuit board design method and circuit boards for commercial vehicle electrical boxes. By integrating different types of socket terminals into the same The relay packaging can not only ensure the electrical connection strength between the relay pin and the socket under the condition of high temperature and high vibration, but also save the cost of components and the weight of the electrical box. It can also reduce the solder paste required for circuit board soldering, saving manufacturing costs

Method used

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  • Circuit board design method of commercial vehicle electric appliance box and circuit board
  • Circuit board design method of commercial vehicle electric appliance box and circuit board
  • Circuit board design method of commercial vehicle electric appliance box and circuit board

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Embodiment 2

[0028]Embodiment 2, a circuit board design method of a commercial vehicle electrical box, in this embodiment, the relay package includes an ISO MICRO five-pin relay package 6, and the ISO MICRO five-pin relay package 6 is respectively provided with a first pin 30, the second pin 87, the fourth pin 85, the fifth pin 86 and the third pin 87a, the number of the first pin 30, the second pin 87, the fourth pin 85, the fifth pin 86 and the third pin 87a are set 1. Specifically, the first pin 30, the second pin 87 and the third pin 87a are arranged side by side up and down, the fifth pin 86 and the fourth pin 85 are arranged side by side, and the first pin 30, the second pin 87 and the third pin 87a are all located at the third pin. Above the fourth pin 85 and the fifth pin 86 , and along the symmetry line of the fourth pin 85 and the fifth pin 86 . The vertical distance D1 between the third pin 87a and the fourth pin 85 or the fifth pin 86 ranges from 2.5 to 3.0mm, and the horizont...

Embodiment 3

[0031] Embodiment 3, a circuit board design method of a commercial vehicle electrical box, in this embodiment, the relay package includes an ISO MINI five-pin relay package 5, and the ISO MINI five-pin relay package 5 is respectively provided with first pins 30 , the second pin 87, the fourth pin 85, the fifth pin 86 and the two third pins 87a, that is, the number of the first pin 30, the second pin 87, the fourth pin 85 and the fifth pin 86 is one, The number of the third pins 87a is two. Specifically, the first pin 30 and the second pin 87 are arranged side by side up and down, and the fifth pin 86, two third pins 87a and the fourth pin 85 are arranged side by side between the first pin 30 and the second pin 87, and the two The third pin 87a is slightly higher than the fourth pin 85 and the fifth pin 86, between the fifth pin 86 and the fourth pin 85, and between the two third pins 87a are along the first pin 30 and the second pin 87. The central lines are arranged symmetri...

Embodiment 4

[0034] Embodiment 4, a circuit board design method of a commercial vehicle electrical box, such as Figure 2 to Figure 4 As shown, there are three relay packaging forms in Embodiment 1 to Embodiment 3. In this embodiment, the ISO MICRO four-pin relay package 4 , the ISOMINI five-pin relay package 5 and the ISO MICRO five-pin relay package 6 are arranged side by side on the circuit board 1 from left to right.

[0035] Other structures are the same as in Embodiment 1.

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Abstract

The invention provides a circuit board design method of an electric appliance box for a commercial vehicle and a circuit board which are used for solving the technical problems of high cost and heavyweight of an existing automobile electric appliance box circuit board. According to different bearing currents of different pins of a relay, bonding pads corresponding to the different pins are designed on the circuit board, different socket terminals are arranged on the bonding pads corresponding to the different pins respectively, a normally open load end pin of the relay bearing large currentsadopts a box type socket terminal, and the normally open load end pin of the relay bearing large currents adopts a box type socket terminal. Tuning fork type socket terminals are adopted as a relay normally-closed load end pin and a relay coil control end pin for bearing small currents, and finally the box type socket terminals and the tuning fork type socket terminals are combined in various forms to form relay packages of different types. According to the invention, the electrical connection strength of the relay pins and a socket under the conditions of high temperature and high vibration is ensured, the component cost and the weight of the electric appliance box are saved, the solder paste required by circuit board welding can be reduced, and the manufacturing cost is saved.

Description

technical field [0001] The invention relates to the technical field of automobile electrical boxes, in particular to a circuit board design method and a circuit board of an electrical box for a commercial vehicle. Background technique [0002] At present, the competition in the entire automobile industry is becoming more and more fierce. Both automobile manufacturers and auto parts suppliers are facing increasing cost pressures. In order to survive, enterprises must find ways to reduce costs. As the main component of the car, the automotive electrical box also faces the problems of increasing costs and decreasing profits. As an important part of the automotive electrical box, the circuit board and the soldering terminals on the circuit board account for more than half of the cost of the entire electrical box, which determines the reduction. The cost of the circuit board is particularly important. At present, the electrical box used in automobiles, especially the electrical ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K3/32H05K1/11
CPCH05K3/328H05K1/111
Inventor 王文骞晋利兵赵平堂王荣喜刘凤军祁顶春张晓军李静杜娟王大然范文涛曹燕霞
Owner HENAN THB ELECTRIC