RD electric-controlled unit electric appliance box for cars
A technology for electronic control units and electrical boxes, applied in the direction of electrical components, electrical equipment shells/cabinets/drawers, etc., can solve the problems of increased circuit board volume, reduced circuit reliability, and high component consumption, so as to save materials and reduce Middle connection, small size effect
Inactive Publication Date: 2009-02-25
SUZHOU LVKON TRANSMISSION TECH CO LTD
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Problems solved by technology
The disadvantage is that the two-layer circuit board is connected by a connector plug-in, which greatly increases the volume of the circuit board; consumes a lot of components that consume silica gel and connectors; there are many connection points, and the reliability of the circuit is reduced.
Method used
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[0009] specific implementation plan
[0010] Depend on figure 1 , figure 2 It can be seen that the simple electronic control unit electrical box for automobiles is composed of a box body 1, a box cover 5, and a circuit board 4. The box body 1 is provided with screw holes along the mouth and a boss 2 at the bottom. The circuit board 3 is provided with a power component area 6, a control circuit area 7 and screw holes. The power components fixed in the power component area are directly welded and connected to the back of the circuit board through the circuit board 4, and the control circuit area 7 is fixedly installed in the control circuit board. line. A heat-conducting silica gel sheet 3 is placed between the back of the power component area 7 of the circuit board and the boss 2 of the box body 1 . Fix the circuit board 4 and the heat-conducting silica gel sheet 3 on the box body 1 with screws, and fix the box cover 5 on the box body 1 with screws.
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The invention provides a simple electronic control unit electrical device case for cars, which belongs to the electronic control circuit board, especially relates to the electronic control unit circuit board for cars. The device includes a case body, a case cover and a circuit board, and the breadboard and the case cover are fixed on the case body. The invention is characterized in that, the face of the circuit board is equipped with a power component region, a control circuit board region, control circuit boards and power components are fixedly installed thereon separately, the power component is directly connected on the back of the circuit board by welding; the case body is molded from die-casting by metal plate, lug bosses with same shapes and size are equipped on the bottom of the corresponding power component region, heat conducting silica gel is equipped between the power component and the lug boss. The invention has the advantages of simple and reasonable structure, good radiating effect; small volume, saved material and easy processing; the circuit board can reduce the interconnection, and is safety and reliable.
Description
technical field [0001] The invention belongs to an electronic control circuit circuit board, in particular to an electric control unit circuit board for automobiles. Background technique [0002] With the development of modern automobiles, the degree of electronization of automobiles is increasing year by year. Electronic technology has been widely used in various aspects such as vehicle engine control, chassis control, fault diagnosis, ABS, audio, navigation, etc., which has significantly improved the power and economy of vehicles. performance, safety, stability and comfort. At present, the electronic control circuit board separates the control circuit from the power components and makes it into an upper and lower two-layer board, which is connected through a connector in the middle. Thermally conductive silicone sheets of the same size are used for heat dissipation. The disadvantage is that the two-layer circuit board is connected by a connector plug-in, which greatly in...
Claims
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IPC IPC(8): H05K5/00
Inventor 黄全安李磊杨军季益亮
Owner SUZHOU LVKON TRANSMISSION TECH CO LTD