JP2008074157A - ECU case assembly structure - Google Patents

Abstract

An object of the present invention is to provide a structure for assembling an ECU case inside an ECU-mounted concentration BOX even when the number of pin holes between the connector mounted on the ECU-mounted concentration box and the connector on the ECU case does not match. An object of the present invention is to make the structure of the ECU-mounted concentration box at that time a simple structure.
An ECU case 10 having a male connector 11 on the outside, a frame-shaped ECU mounting concentration box 20 having a through hole 20a, a female connector 31 connectable to the male connector 11, and the through hole. And a connector holder 30 formed so as to be fitted in the hole 20a. The connector holder 30 is inserted and assembled from one of the through holes 20a of the ECU mounting concentration box 20, and the other of the through holes 20a is assembled in the assembled state. The ECU case 10 is inserted and assembled to complete the connection between the connectors 11 and 31.
[Selection] Figure 1

Description

  The present invention relates to a structure for assembling an ECU case inside an ECU-mounted centralized BOX.

  Conventionally, a plurality of ECU cases are mounted in a vehicle. To describe this mounting in detail, the plurality of ECU cases are respectively inserted and assembled in the spaces of the ECU central mounting BOX having a plurality of partitioned spaces. And this ECU concentration mounting BOX is assembled | attached to the predetermined place in a vehicle.

As prior art document information related to the invention of this application, for example, Patent Document 1 is known.
JP 2001-97140 A

However, the above-described ECU case assembly structure has the following problems (1) to (2).
(1) When assembling a plurality of ECU cases inside the ECU mounting concentration box, the ECU mounting concentration box needs strength to hold the ECU case, so a partition wall is provided inside the ECU mounting concentration box. Therefore, the strength of the centralized box equipped with the ECU was improved. At this time, the plurality of ECU cases are assembled in each space partitioned by the partition wall. Thus, since it was necessary to provide a partition wall inside the ECU mounting concentration box, the inside of the ECU mounting concentration box had a complicated structure.
(2) When the ECU case is assembled inside the ECU mounting concentration box, the ECU case is electrically connected to a wire harness outside the ECU mounting concentration box via a connector. At this time, since the number of pin holes of the connector may differ depending on the type of control board mounted inside the ECU case, the number of pin holes of the connector is the same even in the ECU case having the same outer size. Without it, the ECU case could not be assembled. Therefore, dedicated ECU-equipped concentration boxes are required for the number of types of connector pin holes.

  The present invention is intended to solve such a problem, and its purpose is to mount an ECU even if the number of pin holes between the connector on the ECU mounting central box side and the connector on the ECU case side does not match. It is an object of the present invention to provide a structure for assembling an ECU case inside a central BOX, and to make the structure of the ECU-mounted central box at that time a simple structure.

The present invention is for achieving the above object, and is configured as follows.
The invention according to claim 1 includes an ECU case having a male connector outside, a frame-shaped ECU mounting concentration box having a through hole, a female connector connectable to the male connector, and the through hole. A connector holder formed so that it can be fitted into the ECU, and the connector holder is inserted and assembled from one of the through holes of the ECU mounting concentration box, and the ECU case is inserted from the other of the through holes in the assembled state. This is an ECU case assembly structure that completes the connection between the two connectors.
According to this configuration, the ECU case 10 can be assembled inside the ECU mounting concentration box 20 by using not only the strength of the ECU mounting concentration box 20 but also the strength of the connector holder 30. Therefore, since it is not necessary to provide a partition wall inside the ECU mounting concentration box 20, the structure of the ECU mounting concentration box 20 becomes simple.
Further, according to this configuration, for example, when an ECU case having a different number of pin holes of the male connector of the ECU case is to be assembled to the ECU mounting central box, the ECU holder can be replaced with a connector holder corresponding to the number of pin holes. It can be assembled without the need to replace the mounting box. Therefore, it is possible to share the ECU-mounted concentration box.

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.
(Example 1)
First, Embodiment 1 will be described with reference to FIGS.
FIG. 1 is a perspective view before the ECU case 10 according to the first embodiment is assembled to the inside of the ECU mounting central box 20. FIG. 2 is a diagram illustrating the assembly process of FIG. FIG. 3 is a diagram for explaining the next step of FIG. FIG. 4 is a perspective view in which the ECU mounting concentration box 20 of FIG. 3 is assembled in the vehicle. In the following description, the directions “front and rear, left and right, up and down” are directions “front and rear, left and right, up and down in the perspective view of FIG. 1”.

  Further, in the first embodiment, a case where three ECU cases 10 are assembled inside the ECU mounting central box 20 is described. The difference between these ECU cases 10 is the number of pin holes in the male connector 11. is there. Specifically, as is clear from a partially enlarged view of FIG. 1, the number of pin holes in the male connector 11 is “12, 8, 10” in order from the left ECU case 10. These are the same in Example 2 described later.

  First, the ECU case 10, the ECU mounting central box 20, and the connector holder 30 will be described individually with reference to FIG. First, the ECU case 10 will be described. The ECU case 10 is a case that houses a control board (not shown) for controlling electrical components mounted on a vehicle (not shown).

  A male connector 11 is provided on the rear surface of the ECU case 10. The male connector 11 and the control board in the case 10 are electrically connected. The male connector 11 can be connected to a female connector 31 of a connector holder 30 described later. Since the female connector 31 is connected to the electrical components mounted in the vehicle by the wire harness W / H, the male connector 11 of the ECU case 10 and the female connector 31 of the connector holder 30 are connected to each other. Thus, the control board in the ECU case 10 and the electrical components mounted in the vehicle are electrically connected. As a result, the electrical components can be controlled by the control board.

  Further, on the upper and lower surfaces of the ECU case 10, substantially L-shaped locking pieces 12 that can be bent on the free end side are formed, and projecting claws 12 a are formed on the outer surfaces of the locking pieces 12, respectively. Has been. Here, the outer surface in FIG. 1 is the upper surface of the upper locking piece 12 and the lower surface of the lower locking piece 12. Both the projecting claws 12a can be fitted into locking holes 32 formed in the connector holder 30 described later. The ECU case 10 is integrally formed of, for example, a rigid resin.

  Next, the ECU mounting central box 20 will be described. The ECU mounting central box 20 is formed in a square frame shape, and has a through hole 20a penetrating in the front-rear direction. A connector holder 30 described later can be inserted and assembled from the rear side of the through hole 20a. On the upper surface of the ECU-mounted concentration box 20, a sandwiching body 21 having a substantially C-shaped cross section capable of sandwiching a reinforcement 40 (see FIG. 4) provided in the vehicle is formed.

  On the upper and lower sides of the inner peripheral surface of the sandwiching body 21, a substantially L-shaped locking piece 22 that can be bent on the free end side is formed so as to face each other. Protruding claws 22a are respectively formed. Here, the outer surface in FIG. 1 is the lower surface of the upper locking piece 22 and the lower surface of the lower locking piece 22. Both the projecting claws 12 a can be fitted into locking holes (not shown) formed in the reinforcement 40. It should be noted that the two locking pieces 22 are formed as a pair on the left and right sides of the inner peripheral surface of the sandwiching body 21. Has been.

  A hanging piece 23 extends downward on the rear side of the lower surface of the ECU mounting central box 20, and a fitting body 23 a projects from the rear surface of the hanging piece 23. The fitting body 23a can be fitted into a locking hole (not shown) formed in a bracket 50 (see FIG. 4) provided in the vehicle. Further, locking holes 24 are formed on the upper and lower sides of both sides of the ECU mounting central box 20 respectively. In these four locking holes 24, locking protrusions 34 formed on a connector holder 30 described later can be fitted. The ECU mounting concentration box 20 is integrally formed of, for example, a rigid resin, as with the ECU case 10.

  Next, the connector holder 30 will be described. The connector holder 30 has a substantially square box shape whose front side is open. As already described, the connector holder 30 can be fitted into the through hole 20a of the ECU mounting concentration box 20. Further, as already described, a female connector 31 that can be connected to the male connector 11 of the ECU case 10 is formed in the connector holder 30. Further, as already described, a locking hole 32 into which the projection claw 12a of the ECU case 10 can be fitted is formed on the upper surface of the connector holder 30. Further, as described above, two locking protrusions 34 that can be fitted into the locking holes 24 formed in the ECU mounting central box 20 are formed on the left and right side surfaces of the connector holder 30. .

  A flange 33 is formed on the rear surface of the connector holder 30. The flange 33 prevents the connector holder 30 from being fully inserted into the ECU-mounted concentration box 20 when the connector holder 30 is inserted and assembled from the rear of the through hole 20a of the ECU-mounted concentration box 20. . Note that the connector holder 30 is integrally formed of, for example, a rigid resin, like the ECU case 10 and the ECU mounting central box 20.

  2 and 3, the structure for assembling the ECU case 10 in the ECU-mounted centralized BOX 20 will be described. First, the connector holder 30 is inserted from the rear of the through hole 20a of the ECU mounting central box 20. At this time, the connector holder 30 is inserted until the flange 33 of the connector holder 30 contacts the rear surface of the ECU mounting central box 20. When the flange 33 comes into contact with the rear surface of the ECU mounting concentration box 20, the locking protrusion 34 of the connector holder 30 is fitted into the locking hole 24 of the ECU mounting concentration box 20. As a result, the connector holder 30 is inserted into the ECU mounting concentration box 20 and assembled (see FIG. 2).

  Next, in this state, the ECU case 10 is inserted from the front of the through hole 20a of the ECU mounting central box 20. Then, since both the projection claws 12a of the ECU case 10 are pressed against the inner surface of the connector holder 30, both the locking pieces 12 of the ECU case 10 start to bend in a direction approaching each other. Further, when the ECU case 10 is inserted, the protruding claws 12a of the ECU case 10 are fitted into the locking holes 32 of the connector holder 30, and the bending of the both locking pieces 12 of the ECU case 10 is eliminated. Thereby, the ECU case 10 is inserted into the connector holder 30 and assembled.

  In this state, the connection between the male connector 11 of the ECU case 10 and the female connector 31 of the connector holder 30 is also completed. In this way, the ECU case 10 is assembled inside the connector holder 30, that is, inside the ECU mounting central box 20 (see FIG. 3).

  In this assembled state, first, the fitting body 23a of the hanging piece 23 of the ECU mounting concentration box 20 is fitted into the locking hole of the bracket 50 of the vehicle in an inclined state, and the inclined state is a vertical state with the fitting portion as a rotation fulcrum. The ECU-equipped concentration box 20 is assembled in the vehicle by fitting the protrusion claw 22a of the holding body 21 of the ECU-mounted concentration box 20 into the locking hole of the vehicle reinforcement 40. (See FIG. 4).

  According to the assembly structure of the ECU case 10 described above, first, the connector holder 30 is fitted into the ECU mounting concentration box 20 and assembled. Therefore, not only the strength of the ECU mounting central box 20 but also the strength of the connector holder 30 can be used as the strength for holding the ECU case 10. Therefore, as described in the prior art, since it is not necessary to provide a partition wall inside the ECU mounting concentration box 20, the structure of the ECU mounting concentration box 20 becomes simple.

  Further, when the ECU case 10 having a different number of pin holes of the male connector 11 of the ECU case 10 is to be assembled to the ECU mounting concentration box 20, the ECU mounting concentration box can be replaced by replacing the connector holder 30 corresponding to the number of pin holes. There is no need to replace 20. For example, from the state of FIG. 2, when it is desired to assemble three ECU cases 10 having different numbers of pin holes (for example, ECU cases 10 having the number of pin holes “11, 7, 9”) Cannot be assembled because the numbers do not match. However, when the connector holder 30 is replaced with the connector holder 30 corresponding to the number of pin holes “11, 7, 9”, the three ECU cases 10 having different pin holes can be obtained without changing the ECU mounting concentration box 20. Can be assembled inside the ECU-mounted concentration box 20. That is, the ECU mounting central box 20 can be shared.

(Example 2)
Next, Example 2 will be described with reference to FIGS.
FIG. 5 is a perspective view before the ECU case 10 according to the second embodiment is assembled to the inside of the ECU mounting central box 20. FIG. 6 is a diagram for explaining the assembly process of FIG. FIG. 7 is a diagram for explaining the next step of FIG. FIG. 8 is a perspective view in which the ECU mounting concentration box 20 of FIG. 7 is assembled in the vehicle.

  The second embodiment is different from the first embodiment in the locking structure for assembling the ECU case 10 and the connector holder 30. In the following description, the same or equivalent members as in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

  As shown in FIG. 5, locking walls 13 corresponding to the locking holes 32 of the connector holder 30 are provided on the upper and lower surfaces of the ECU case 10 instead of the locking pieces 12 described in the first embodiment. Further, locking pieces 35 corresponding to the locking pieces 12 of the ECU case 10 are provided at the upper and lower ends on the front side of the connector holder 30 instead of the locking holes 32 described in the first embodiment. The projection claw 35 a of the locking piece 35 of the connector holder 30 can be locked with the locking wall 13 of the ECU case 10. Therefore, also in the second embodiment, the ECU case 10 can be inserted into the connector holder 30 and assembled.

  Further, since the other configuration is the same as that of the first embodiment, the connector holder 30 can be inserted and assembled into the ECU mounting central box 20 in the same manner as the first embodiment (see FIG. 6). Similarly, the ECU case 10 can be assembled inside the ECU mounting central box 20 (see FIG. 7). Similarly, the ECU-mounted concentration box 20 can be assembled in the vehicle (see FIG. 8). Therefore, also in the second embodiment, the same effect as that of the first embodiment can be obtained.

The contents described above are only related to one embodiment of the present invention, and do not mean that the present invention is limited to the above contents.
In each of the embodiments, as an example in which the ECU mounting centralized box 20 is used in common, an example in which the number of pin holes of the male connector 11 of the ECU case 10 is different has been described. However, the present invention is not limited to this, and the outer case size of the ECU case 10 may be different. In this case, the outer size of the connector holder 30 is provided so as to be adapted to the ECU mounting central box 20, and the inner size of the connector holder 30 (the size in which the ECU case 10 is fitted inside the connector holder 30) is the same as that of the ECU case 10. What is necessary is just to provide so that it may adapt to external size. If it does so, even if it is ECU case 10 from which an external size differs, if only the connector holder 30 is replaced | exchanged like the said each Example, it can be assembled | attached to the ECU mounting concentration box 20.

FIG. 1 is a perspective view before the ECU case 10 according to the first embodiment is assembled to the inside of the ECU mounting central box 20. FIG. 2 is a diagram illustrating the assembly process of FIG. FIG. 3 is a diagram for explaining the next step of FIG. FIG. 4 is a perspective view in which the ECU mounting concentration box 20 of FIG. 3 is assembled in the vehicle. FIG. 5 is a perspective view before the ECU case 10 according to the second embodiment is assembled to the inside of the ECU mounting central box 20. FIG. 6 is a diagram for explaining the assembly process of FIG. FIG. 7 is a diagram for explaining the next step of FIG. FIG. 8 is a perspective view in which the ECU mounting concentration box 20 of FIG. 7 is assembled in the vehicle.

Explanation of symbols

10 ECU Case 11 Male Connector 20 ECU Mounted Concentration Box 20a Through Hole 30 Connector Holder 31 Female Connector

Claims (1)

An ECU case having a male connector outside;
A frame-shaped ECU-mounted concentration box having a through hole;
A connector holder having a female connector connectable with the male connector and formed so as to be fitted into the through hole;
The connector holder is inserted and assembled from one of the through holes of the ECU mounting concentration box, and in the assembled state, the ECU case is inserted and assembled from the other of the through holes to complete the connection between both connectors. The ECU case assembly structure.

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