Fixing device for controller transistor
A technology for fixing devices and transistors, applied in elastic/clamping devices, circuit layout on support structures, cooling/ventilation/heating transformation, etc., can solve the problem of difficulty in ensuring that the heating surface of the transistor is in good contact with the heat sink and affecting the performance of the transistor. And life, transistor heat dissipation is not ideal and other issues, to achieve ideal heat dissipation, simple structure, good contact effect
Inactive Publication Date: 2017-03-22
CURTIS TECH SUZHOU
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Problems solved by technology
The disadvantages of this fixing method are as follows: assembly is time-consuming; the force-bearing surface of the transistor is small and uneven, and it is difficult to ensure good contact between the heating surface of the transistor and the surface of the radiator, which makes the heat dissipation effect of the transistor unsatisfactory
This will directly affect the performance and life of the transistor, so as to damage the controller and affect the safety of the vehicle
Method used
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Embodiment
[0018] Such as figure 1 , 2 As shown, a fixing device for a controller transistor includes a heat sink 11, a PCB board 3 and an elastic clip 5. The heat sink 11 can be arranged on the base 1 or on the PCB board 3. The heat sink 11 is arranged on the base 1 to increase the effect. The present invention is explained by taking the heat sink 11 on the base 1 as an example. The PCB board 3 A mounting hole for the heat sink 11 is provided, and the heat sink 11 passes through the mounting hole so that the heating surface of the transistor 31 on the PCB board 3 is attached to the surface of the heat sink 11.
[0019] The top of the radiator 11 is provided with a positioning column 12, and the elastic clip 5 is made of elastic material (similar to the structure of a dovetail clip), and includes a connecting cross surface 50 and an elastic arm 51 integrally formed with it and distributed on both sides. The connecting cross surface 50 A mounting hole 53 is provided for matching with the pos...
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The invention discloses a fixing device for a controller transistor. The fixing device comprises a radiator, a PCB and an elastic clamp, wherein a locating post is arranged at the top of the radiator; a heating surface of the transistor on the PCB is attached to the surface of the radiator; the elastic clamp is made of an elastic material and comprises a connection transverse surface and elastic arms; the connection transverse surface and the elastic arms are distributed at two sides in an integral forming manner; an installation hole matched with the locating post is arranged in the connection transverse surface; the transistor and the radiator are put in the middle of two elastic arms; and the transistor is clamped on the radiator by the elastic arms. The fixing device is simple in structure and convenient to assemble, the transistor can be fixed, the contact of the transistor and the radiator is better and the heat dissipation effect is more ideal.
Description
Technical field [0001] The invention relates to a fixing device of a controller transistor, in particular to a fixing device of a transistor in a power steering controller of an electric vehicle, which realizes fixing and has a better heat dissipation effect. Background technique [0002] Electric vehicles are vehicles driven by electricity and using electricity as energy sources. With the strengthening of people's awareness of environmental protection, electric vehicles have become one of the important means of transportation for people's daily travel. As one of the three core components of electric vehicles, the reliability and safety of electric vehicle controllers play a vital role in the quality of the entire vehicle. [0003] At present, the transistor in the controller is generally screwed through the mounting hole on the transistor to lock the transistor to the heat sink. The disadvantages of this fixing method are as follows: assembly is time-consuming; the force-receivin...
Claims
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IPC IPC(8): H05K7/12H05K7/20
CPCH05K7/12H05K7/20854
Inventor 谢纪武
Owner CURTIS TECH SUZHOU