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Housing of vehicle electronic control unit

A technology for electronic control units and casings, which is applied in the field of casings of electronic control units for vehicles, and can solve the problems of time-consuming and labor-intensive thin plates, reduced manufacturing efficiency, and high cost of waterproof thin plates.

Inactive Publication Date: 2012-07-11
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when the connector is assembled to or removed from the vehicle-side connector, the canopy provided above the connector becomes an obstacle.
In this case, the manufacturing efficiency is reduced
[0006] Also, since the waterproof sheet may hang down toward the connector, the waterproof sheet may hinder the attachment / detachment of the connector
If the waterproof sheet is fixed after the assembly of the connector is completed, the fixing operation of the sheet consumes time and labor, thereby reducing manufacturing efficiency
In addition, the cost of the waterproof sheet is high, which will increase the manufacturing cost

Method used

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  • Housing of vehicle electronic control unit
  • Housing of vehicle electronic control unit
  • Housing of vehicle electronic control unit

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0023] like figure 1 As shown in , an enclosure 1 of an ECU for a vehicle includes a housing 2 , a cover 3 and a waterproof cover 4 .

[0024] The casing 2 is made of resin, and has an approximately rectangular parallelepiped shape. A lower portion and a side portion (for example, a front portion) of the housing 2 housing the ECU inside are open. Specifically, the housing 2 has an upper wall 21 , a right wall 22 , a left wall 23 and a rear wall 24 .

[0025] The cover 3 is a plate member made of metal or resin, and closes the opening in the lower portion of the housing 2 . The cover 3 is fixed to the lower part of the housing 2, for example, by screws (not shown). The ECU is fixed to the cover 3 and housed in the housing 2 .

[0026] The waterproof canopy 4 is a plate member made of resin, and is integrally formed with the casing 2 . The waterproof canopy 4 has a canopy member 41 and a movable holding portion 42 . The canopy member 41 protrudes forward from the front end...

no. 2 approach

[0037] like Figure 5 As shown in , in the second embodiment, the housing 10 of the ECU for a vehicle has a case 20 , a cover 3 and a waterproof cover 40 . In the state where the waterproof cover 40 is bent upwards is illustrated Figure 5 The ECU is omitted in .

[0038] The housing 20 has almost the same configuration as the first embodiment, and has an upper wall 21 , a right wall 22 , a left wall 23 , a rear wall 24 and a front edge portion 25 . After defining the opening in the front wall of the housing 2, the front edge portion 25 is defined by the remainder of the front wall. Specifically, the front edge portion 25 has a right portion 251 protruding leftward from the front end of the right wall 22 , and a left portion 252 protruding rightward from the front end of the left wall 23 . A hook hole 25a is defined in each of the right portion 251 and the left portion 252, and corresponds to a hook 412a which will be mentioned later.

[0039]The waterproof canopy 40 is ma...

no. 3 approach

[0050] like Figure 7 As shown in , compared with the first embodiment, in the third embodiment, the housing 1A of the ECU for a vehicle has a detection portion 44 provided on a cover member 41 . The detection portion 44 protrudes downward from the lower surface of the canopy member 41 on the front side.

[0051] like Figure 8B As shown in , for example, when the connectors Y, Z have a half-assembled state, the detecting portion 44 contacts the protruding portion of the vehicle-side connector Z. At this moment, the waterproof canopy 4 cannot have Figure 8A normal state shown in . Specifically, such as Figure 8B As shown in , the canopy 4 cannot become parallel to the upper wall 21 . That is, when the connectors Y, Z are in a semi-assembled state, the waterproof cover 4 is inclined upward relative to the upper wall 21 .

[0052] Instead, as in Figure 8A As shown in , when the connectors Y, Z are completely fitted to each other, the detection portion 44 does not conta...

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PUM

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Abstract

The invention provides the housing of a vehicle electronic control unit, which comprises a housing (2, 20), a cover (3) and a waterproof calash cover (4, 40). The lower part of the housing is provided with a bottom opening and the lateral part of the housing is provided with a lateral opening. The bottom opening is sealed by the cover. The electronic control unit is provided with a connector disposed within the lateral opening. The waterproof calash cover prevents the connector from receiving water. The waterproof calash cover arranged above the lateral opening is provided with calash cover parts (41, 410). The calash cover parts (41, 410) project outwardly toward the lateral part of the housing.

Description

technical field [0001] The invention relates to a casing of an electronic control unit for a vehicle. Background technique [0002] Vehicles have multiple electronic control units. The electronic control units are housed in the housings respectively, and installed at positions of the vehicle. The electronic control unit has electronic circuits, and if the circuit receives water, it may cause malfunction. Therefore, the housing is required to have a waterproof function for the electronic unit. In particular, the case has an opening from which the connector of the electronic control unit is exposed to the outside, and there is a possibility that water enters the inside of the housing via the abutting portion of the connector. [0003] As a waterproof function at the abutting portion of the connector, JP-2002-539027A describes a canopy defined by extending the mounting plate of the cover. [0004] JP-2000-159053A describes a waterproof sheet that is provided above a connect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K5/06H05K5/02
Inventor 三原孝
Owner DENSO CORP
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