Electronic part and electronic control unit

一种电子部件、电极的技术，应用在电子控制单元领域，能够解决不可能确保切断图面熔丝准确性、响应特征改变等问题，达到设计宽松、尺寸减小、降低制造成本的效果

Active Publication Date: 2014-09-03
DENSO CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, it is impossible to ensure the accuracy of the execution of cutting the drawing fuse due to the change of the response characteristics

Method used

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  • Electronic part and electronic control unit
  • Electronic part and electronic control unit
  • Electronic part and electronic control unit

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example ）

[0046] figure 1 with 2 The electronic control unit 10 is shown having a circuit board 12 as its main component. The electronic control unit 10 also has a housing 14 for receiving the circuit board 12 and a sealing element 16 . In the present embodiment, the electronic control unit 10 is formed as a watertight electronic control unit (ECU) for controlling the operation of a vehicle engine.

[0047] The outline structure of the electronic control unit 10 will be described below.

[0048]The housing 14 is made of metal (such as aluminum, iron, etc.) or a resin material for housing the circuit board 12 therein to protect it from water, dust, and the like. The number of parts used to form the housing is not limited to a specific number, and thus housing 14 may be composed of one or more components.

[0049] Such as figure 2 As shown, according to the present embodiment, the housing 14 is composed of two parts, namely, a shallow box-shaped lower housing 18 with an upper end op...

no. 2 example ）

[0099] The second embodiment of the present disclosure will refer to Figure 10 illustrate. Descriptions of those parts similar or identical to those of the first embodiment (including the electronic part 28a, the electronic control unit 10, etc.) will be omitted.

[0100] Such as Figure 10As shown, the second embodiment has a first technical feature different from that of the first embodiment. According to the first technical feature, the arm portion 78 is disposed in the fuse terminal 54a. In addition, the second embodiment has a second technical feature different from that of the first embodiment. According to the second technical feature, the cutout portion 66 is formed in the connecting portion 64 between the first connecting portion 64a and the arm portion 78, that is, closer to the electrode connecting portion 60.

[0101] The arm portion 78 extends from the second connection portion 64 b of the connection portion 64 in the X direction, that is, in a direction perpe...

no. 3 example ）

[0108] The third embodiment will refer to Figure 12 illustrate. Descriptions of those parts (including the electronic part 28 a , the electronic control unit 10 , etc.) that are similar or identical to those of the first embodiment and / or the second embodiment will be omitted.

[0109] Such as Figure 12 As shown, the wiring element 80 is provided in the position of the second wiring pattern 42 of the second embodiment, wherein the wiring element 80 is made as a separate part with respect to the printed board 26 . Other parts and structures of the third embodiment are the same as those of the second embodiment (such as Figure 11 The same as those of the fourth variant shown in ).

[0110] The wiring element 80 is, for example, a bus line made of metal through which a large current flows. The pad connection portion 62 of the fuse terminal 54 a is connected (soldered) to the wiring member 80 . wiring element 80 ( Figure 12 ) and the second wiring diagram 42 (eg, Figur...

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PUM

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Abstract

A main body (48) of an electronic part (28a) is formed in a rectangular pillared shape having a first and a second axial end surface (48a,48b). A first electrode (50) is formed on the first axial end surface (48a) electrically and mechanically connected to a first wiring pattern (40) formed on a board surface (26a) of a printed board (26). A second electrode (52) is formed on the second axial end surface, to which one end of a fuse terminal (54a) is electrically connected. The other end (62) of the fuse terminal (54a) is connected to a second wiring pattern (42) of the printed board (26) or a wiring member which is formed as an independent member from the printed board (26). A cut-off portion (66) is formed in a connecting portion of the fuse terminal (54a).

Description

technical field [0001] The present disclosure relates to an electronic component mounted to a printed board and an electronic control unit having the electronic component. Background technique [0002] A printed board having a pattern fuse (which is part of a wiring pattern formed in the printed board) is known in the prior art, for example, as disclosed in Japanese Patent Laid-Open No. 2007-311467 of. [0003] Surface fuses are usually formed narrower than the rest of the wiring pattern. Therefore, for example, when a short circuit occurs inside an electronic device or in an electronic component and thus an overload current flows, the surface fuse melts due to heat generation to cut off an electrical path. [0004] In the case of drawing fuses, when drawing fuses are used for different types of electronic parts or when drawing fuses are used for the same type of electronic parts but the ratings of the electronic parts are different from each other, the drawing fuses must ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/02H05K1/18H01G2/06H01G4/30
CPCH05K2201/10181H05K1/0263H05K2201/10946H05K3/3426H01H85/10H01H85/0241H01H2085/0275H05K1/18H05K2201/10454H05K1/181H01H85/50H01H85/463H01G2/16H01H69/022H01G2/18H01H85/48
Inventor 板桥徹三上裕基白石亮一柳泽章裕西山茂纪
Owner DENSO CORP
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