JP2008099347A - On-vehicle electric connection box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve workability in an opening/closing cover of an electric connection box during maintenance. <P>SOLUTION: The electric connection box has a configuration in which a cover 21 for covering the entire surface of an upper surface opening of a case body 11 is provided, both right and left sides of the cover 21 are coupled openably/closably to the case body 11 via a supporting piece 31, both ends of the supporting piece 31 are pivotted rotatably to the case body 11 and the cover 21 respectively, the cover 21 has a horizontal posture in closing operation to close the upper surface opening of the case body 11, and in opening operation for maintenance, the supporting piece 31 is rotated using the pivotting portion of the case body 11 side as a fulcrum to have a slanted posture while descending the rear side of the cover 21 and ascending the front side, and the front side having maintenance-requiring parts attached thereon is opened, of an electrical component mounting portion 12 of the case 11. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an on-vehicle electrical junction box, and in particular, to improve the maintenance workability by improving the cover opening / closing structure.

The electrical junction box mounted on the car
Normally, as shown in the electrical junction box 1 of FIG. 8, an electrical component 3 such as a fuse or a relay is detachably fitted to the electrical component mounting portion 2 a of the case body 2, and the electrical component mounting portion 2 a is covered with a cover 4. The cover 4 and the case main body 2 are detachably locked together. (Japanese Patent Laid-Open No. 2001-69644)

When the electrical parts 3 such as relays, fuses and fusible links are accommodated in the case body 2, when these electrical parts require maintenance such as replacement, the cover 4 is unlocked, and the cover 4 is It is necessary to perform a part replacement operation or the like with the case body 2 removed.
When this type of electrical junction box is mounted in the engine room of an automobile, many in-vehicle parts are installed in the engine room, and it is often impossible to secure a sufficient space for removing the cover. In particular, when the electric junction box is covered with a resin cover in order to improve the appearance of the engine room, the space for removing the cover is further narrowed.
As described above, since the space for removing the cover is narrow, if the maintenance work is performed in a state where the electrical component mounting portion cannot be opened largely, there is a problem in that the blind work increases and the workability deteriorates.

With respect to the above problem, in Japanese Patent Laid-Open No. 2000-316220 (Patent Document 2), as shown in FIGS. 9A and 9B, an electrical connection in which a cover covering the electrical component mounting portion 6a of the case body 6 is divided into a plurality of parts. Box 5 has been proposed.
That is, in the illustrated example, the cover is divided into a first cover 7a and a second cover 7b and is slid to the case body 6 along the guide portions 8a to 8d provided on the case body 6 for each cover 7a, 7b. It is proposed that the space for removing the cover can be reduced.

However, since the removed covers 7a and 7b are completely separated from the case body 6 and removed, it is necessary to temporarily place the covers 7a and 7b somewhere during the maintenance work, and at that time, There is a risk of damage, and there is room for improvement in terms of management.
Furthermore, it takes time and effort to re-fit the completely removed covers 7a and 7b to the case body 6, and there is room for improvement in terms of assembly workability.

JP 2001-69644 A JP 2000-316220 A

  The present invention has been made in view of the above problems, and it is an object of the present invention to provide an in-vehicle electrical connection box that can improve the maintenance workability with a small space for removing a cover, less labor for cover management and assembly.

In order to solve the above problems, as a first invention, a cover is provided which covers the entire upper surface opening of a case main body mounted on a vehicle, and the left and right sides of the cover can be freely opened and closed to the case main body via support pieces. Connected, and both ends of the support piece are pivotally attached to the case body and the cover, respectively,
The cover closes the upper surface opening of the case main body in a horizontal posture during the closing operation, and lowers the rear side of the cover by rotating the support piece with the pivoting portion on the case main body side as a fulcrum during the opening operation. An in-vehicle electrical junction box is provided, characterized in that the inclined posture is raised and the front side portion of the case body is opened.

Further, as a second invention, a cover that covers the entire upper surface opening of a case main body mounted on a vehicle is provided, the cover is divided in the front-rear direction, the front side is an opening / closing cover, the rear side is an opening / closing unnecessary cover, The open / close unnecessary cover is fixed to the case main body, while the left and right sides of the open / close cover are connected to the case main body through a support piece so as to be opened and closed, and both ends of the support piece are rotated to the case main body and the cover, respectively. Attach freely,
The opening / closing cover closes the front side opening of the case body in a horizontal posture during the closing operation, and rotates the support piece to the front side with the pivoting portion on the case body side as a fulcrum during the opening operation. There is also provided an in-vehicle electrical junction box characterized in that the front side of the cover is inclined and the front side of the case body is opened.

In any of the electrical junction boxes, the opening operation of the cover is not performed by removing the cover from the case body and opening the entire upper surface of the case body, but by rotating the cover and shifting it from the case body. The front side is opened and the open state is maintained. Accordingly, the space for removing the cover can be reduced, and the parts replacement work can be easily performed by visual inspection.
Further, the cover removal space can be further reduced by dividing the cover and opening only the opening / closing cover covering the front side portion.

  Furthermore, since the cover and the case main body are rotatably connected by the support piece, the cover is not completely removed from the case main body even during the opening operation, and also when the opened cover is closed, The cover can be returned to the original closed position simply by rotating the support piece and returning it to the horizontal position. Therefore, the removed cover is temporarily placed somewhere, and the conventional work such as re-attaching the cover to the case body is not required, and the removed cover can be prevented from being lost or damaged. Therefore, the workability of maintenance can be improved.

Furthermore, as a third invention, a cover that covers the entire upper surface opening of the case body mounted on the vehicle is provided, the cover is divided in the front-rear direction, the front side is an opening / closing cover, the rear side is an opening / closing unnecessary cover, The open / close unnecessary cover is fixed to the case main body, while the left and right sides of the open / close cover are slidably connected forward to the left and right side walls of the case main body,
The open / close cover is configured to close the front opening of the case main body during the closing operation and to be drawn forward during the opening operation to open the front side portion of the case main body. Also offers.

  In the opening operation of the cover of the electrical junction box, only one of the divided opening / closing covers is slid to open at least the front side portion of the case body and maintain the open state. Therefore, like the above-described electrical junction boxes, the entire cover is not removed from the case body and the entire upper surface of the case body is not opened, so that the space for removing the cover can be reduced and the parts can be easily replaced by visual inspection. be able to.

In addition, since the opening / closing cover and the case body are slidably connected, the opening / closing cover is not completely removed from the case body even during the opening operation, and when the opened cover is closed, By simply sliding the cover backward and pushing it back, the cover can be returned to its exact closed position.
Therefore, the removed cover is temporarily placed somewhere, and the conventional work such as re-attaching the cover to the case body is not required, and the removed cover can be prevented from being lost or damaged. Therefore, the workability of maintenance can be improved.

  In addition, as a method of connecting the opening / closing cover and the case main body, a method is provided in which a slide suppressing portion such as a rail or a guide is provided on the left and right side walls of the case main body, and the opening / closing cover is connected to the slide suppressing portion, or the case main body is fixed The opening / closing cover may be slidably connected to the case body indirectly by providing a slide suppressing portion on the open / close unnecessary cover and connecting the opening / closing cover to the slide suppressing portion.

  The cover that is activated during the opening operation couples the cover and the front side of the case body via a detachable lock portion when the cover is closed.

  As described above, according to the present invention, instead of completely removing the entire cover from the case body, only the front side portion can be opened by shifting the cover or only a part of the cover from the case body. Therefore, the space for removing the cover can be reduced, and the parts replacement operation can be easily performed by visual inspection.

  In addition, since the cover and the case main body are rotatably or slidably connected, the cover is not completely removed from the case main body even during the opening operation, and the opened cover is closed. Sometimes, it can be easily returned to the original closed position. Accordingly, it does not take time to temporarily place and reassemble the cover, and can prevent the cover from being lost or damaged, and can be managed without any trouble in management.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In any of the embodiments, the present invention is applied to an electric connection box that is fixed flat in an engine room of an automobile, and the appearance of the engine room is improved above the rear side (back side) of the electric connection box. A resin cover C is provided.

  1 to 4 show an in-vehicle electrical junction box 10 according to a first embodiment of the present invention. As shown in FIG. 1, the electrical junction box 10 includes a case main body 11 and a cover 21 that covers the entire upper surface opening of the case main body 11.

  As shown in FIG. 2, the upper surface of the case main body 11 is an electrical component mounting portion 12 in which fitting portions for various electrical components are formed, and the rear side of the electrical component mounting portion 12 that the resin cover C covers. The connector 16 and the like are detachably attached to the part, and the fuse 17 and the relay 18 are detachably attached to the front side part not covered with the resin cover C.

  As shown in FIG. 1A, the cover 21 includes an upper portion 22 that covers the entire upper surface opening of the case body 11, and a body fitting portion 23 formed at the lower end portion of the peripheral wall 22 a of the upper portion 22. Become. The body fitting portion 23 includes a flange portion 23a formed by bending the lower end of the peripheral wall 22a of the upper portion 22 outward, and a skirt portion 23b formed by bending the distal end of the flange portion 23a downward.

  At the upper end of the side wall 13 of the case body 11, as shown in FIG. 1B, an abutting portion 14a of the cover 21 with the flange portion 23a, and an inner side wall 14b projecting upward from the corresponding contact portion 14a, The step-shaped cover fitting part 14 which consists of is formed.

The case body 11 and the cover 21 are rotatably connected via a pair of left and right support pieces 31.
Specifically, one of the both end portions of the support piece 31 is positioned at the rear side of the left and right side walls 13 of the case body 11, and the other is positioned at the rear side of the left and right skirt portions 23b of the cover 21, respectively. 34 and 35 are penetrated and are rotatably attached to the shaft. At this time, as shown in FIG. 1A, the support piece 31 is pivotally attached so as to be in a vertical posture in the fitted state between the cover 21 and the case main body 11. Of the shaft holes 32 and 33 at both ends of the support piece 31, the shaft hole 33 that penetrates the shaft 35 used for the shaft attachment with the cover 21 is formed as shown in FIGS. 3 (A) and 3 (B). A vertically long oval shape in which the shaft 35 is slidable upward in the inside 33 is formed.
Similarly, both end portions of the support piece 31 are pivotally attached to the other left and right side walls 13 of the case body 11 and the other left and right skirt portions 23 b of the cover 21.

When the cover 21 is closed, the cover 21 is set in a horizontal position, and as shown in FIG. 4, the lower surface of the flange portion 23a of the cover 21 is brought into contact with the contact portion 14a of the case body 11 and the skirt portion 23b is brought into contact. The cover 21 and the case main body 11 are fitted to each other with the inner surface of the case body 11 being in contact with the outer surface of the side wall 13 of the case body 11 and the peripheral wall 22a of the upper portion 22 being in contact with the outer surface of the inner side wall 14b of the case main body 11.
In this state, the locking claw 24 provided on the skirt 23b on the front side of the cover 21 is locked to the locked portion 15 provided on the side wall 13 on the front side of the case main body 11, so that the cover 21 and the case main body are fixed. 11 is locked.

When the electrical connection box 10 having the above-described configuration is opened in the maintenance work, the lock claw 24 on the front surface of the cover 21 and the locked portion 15 on the front surface of the case main body 11 are unlocked, and then the electrical connection box 10 shown in FIG. As shown in (B), the cover 21 is slightly lifted upward.
Next, as shown in FIG. 1 (B), the cover 21 is rotated rearward with the shaft 34 that pivotally supports the support piece 31 and the case body 11 as a fulcrum, and the cover 21 is tilted rearward and shifted. . At this time, since the cover 21 has an inclined posture in which the rear side is lowered and the front side is raised, the front side portion of the electrical component mounting portion 12 of the case main body 11 does not interfere with the resin cover C as shown in FIG. As shown in FIG. 1B, the upper wall 22b of the upper portion 22 hits the upper end of the side wall 13 on the rear side of the case body 11, and the cover 21 is inclined rearward more than the inclined posture. Regulates sliding down.

  As described above, the electrical junction box 10 of the present embodiment is configured such that the cover 21 is rotated and slightly shifted without completely removing the cover 21 from the case main body 11, so that the fuse 17 or the maintenance component required. Since the front side portion of the electrical component mounting portion 12 on which the relay 18 is mounted can be opened, the parts replacement work can be performed by visual inspection, which can be facilitated and the space for removing the cover 21 can be reduced.

  Further, even when the cover 21 is opened, the cover 21 remains connected to the case body 11 via the support piece 31, so that a temporary place for the cover 21 is not required, and loss and damage can be prevented. Further, after the maintenance work is completed, if the cover 21 is pulled back to the front side, the cover 21 is in a horizontal position by the rotation of the support piece 31 and can be easily returned to the accurate closed fitting position, so that the assembly workability is also improved. To do.

5A and 5B show a second embodiment of the present invention.
In this embodiment, the cover 21 is divided into a front opening / closing cover 21 </ b> A and a rear opening / closing unnecessary cover 21 </ b> B, and the opening / closing unnecessary cover 21 </ b> B is fixed to the case body 11 with a lock portion 41.

The opening / closing cover 21 </ b> A and the case body 11 are rotatably connected via a pair of left and right support pieces 31.
Specifically, one end of the support piece 31 is positioned at a position closer to the front side of the left and right side walls 13 of the case body 11, and the other is passed through the left and right skirt portions 23b of the opening / closing cover 21A. And is pivotally mounted. At this time, as shown in FIG. 5A, the support piece 31 is pivotally attached so as to be in a vertical posture in the fitted state between the opening / closing cover 21 </ b> A and the case body 11. Moreover, the shaft hole 33 provided on the support piece 31 for wearing the shaft with the cover 21 </ b> A has a vertically long elliptical shape in which the shaft 35 can slide upward in the shaft hole 33.
Similarly, both end portions of the support piece 31 are attached to the left and right side walls 13 of the case body 11 and the left and right skirt portions 23b of the opening / closing cover 21A.

A locking claw 24 is provided on the front skirt 23 b of the opening / closing cover 21 </ b> A, and a locked portion 15 is provided on the side wall 13 on the front side of the case body 11.
During the closing operation of the opening / closing cover 21A, the opening / closing cover 21A is set in a horizontal posture, and the divided end portion of the opening / closing cover 21A covers the divided end side of the opening / closing unnecessary cover 21B from above to form the overlapping portion 25. The locking claw 24 is locked to the locked portion 15, and the opening / closing cover 21 </ b> A and the case body 11 are lock-coupled.

In the electrical connection box 10 of the present embodiment, when the opening / closing cover 21A is opened in the maintenance work, the locking claw 24 on the front surface of the opening / closing cover 21A and the locked portion 15 on the front surface of the case body 11 are unlocked. Thereafter, the cover 21A is slightly lifted upward, and as shown in FIG. 5 (B), the support piece 31 is rotated forward with a shaft 34 that pivotally supports the support piece 31 and the case body 11 as a fulcrum. Tilt 21 and move it forward.
At this time, since the front side of the cover 21A is lowered and the rear side is raised, the front side portion of the electrical component mounting portion 12 of the case body 11 can be opened without interfering with the resin cover C, and the opening / closing cover 21A. The upper wall 22b hits the upper end of the side wall 13 on the front side of the case body 11, and the opening / closing cover 21A can be prevented from tilting and sliding down more than the inclined posture.

  Also in this embodiment, the entire cover 21 is not completely removed from the case main body 11, and only the one of the divided opening / closing covers 21A is rotated and shifted, thereby requiring maintenance components such as the fuse 17 and the relay 18. Since the front side portion of the electrical component mounting portion 12 mounted with can be opened, the parts replacement operation can be easily performed by visual inspection, and the space for removing the cover can be further saved.

6 and 7 show a third embodiment of the present invention.
In the present embodiment, the cover 21 is divided into a front opening / closing cover 21A and a rear opening / closing unnecessary cover 21B. The opening / closing cover 21A can be slid open / closed with respect to the case body 11, while the opening / closing unnecessary cover 21B is a case. It is fixed to the main body 11 with a lock part 41.
At the divided edge of the opening / closing cover 21A, an overlapping portion 26 is provided so as to cover the outer surface of the divided end portion of the opening / closing unnecessary cover 21B when the opening / closing cover 21A is closed.

  As shown in FIGS. 7A and 7B, on the outer surfaces of the left and right skirt portions 23b of the opening / closing unnecessary cover 21B, a guide hole 52 having a long hole shape is provided over substantially the entire length in the front-rear direction. The slide rail 51 is projected.

  A guide bar 53 that slides back and forth in the slide rail 51 from the rear end portions of the left and right skirt portions 23b is provided on the opening / closing cover 21A so as to protrude rearward. The length of the guide bar 53 is a length that abuts against the rear end portion 51a of the slide rail 51 when the opening / closing cover 21A is closed.

The opening / closing unnecessary cover 21 </ b> B and the opening / closing cover 21 </ b> A are formed in the guide hole in the pin hole at the front end (rear end) of the guide bar 53 with the guide bar 53 inserted into the slide rail 51. By screwing a guide pin 54 having a head 54 a having a diameter larger than the vertical width of 52 and projecting the head 54 a of the guide pin 54 from the guide hole 52 to the outside of the slide rail 51, It is slidably connected.
Accordingly, the opening / closing cover 21 </ b> A and the case body 11 are indirectly slidably connected via the opening / closing unnecessary cover 21 </ b> B fixed to the case body 11.

  During the closing operation of the opening / closing cover 21 </ b> A, the locking claw 24 provided on the front skirt 23 b of the opening / closing cover 21 </ b> A is locked to the locked portion 15 provided on the front side wall 13 of the case body 11. Thus, the front slide of the opening / closing cover 21A is locked.

  In this embodiment, as shown in FIGS. 6A and 6B, the guide pin 54 extends along the guide hole 52 of the slide rail 51 provided in the opening / closing unnecessary cover 21B by pulling the opening / closing cover 21A forward. Therefore, the opening / closing cover 21A can be horizontally slid forward without interfering with the resin cover C. Further, since the guide hole 52 is provided over substantially the entire length in the front-rear direction of the opening / closing unnecessary cover 21B, the opening / closing cover 21A is pulled out so that the guide pin 54 moves from the rear end 52a to the front end 52b of the guide hole 52. Thus, the entire front side portion of the electrical component mounting portion 12 of the case body 11 can be opened.

Furthermore, as shown in FIG. 6 (B), the guide pin 54 abuts against the front end 52b of the guide hole 52, so that the opening / closing cover 21A can be prevented from falling forward, and the opening / closing cover 21A The connection state with the case body 11 can be maintained.
Further, at the time of the closing operation, the opening / closing cover 21 </ b> A drawn forward is pushed back as it is, so that the cover 21 </ b> A can be slid to be easily returned to the accurate closing fitting position with the case body 11.

The electrical junction box which concerns on 1st embodiment of this invention is shown, (A) is a side view which shows the state at the time of cover closing operation, (B) is a side view which shows the state at the time of cover open operation. It is a perspective view which shows the state at the time of cover open operation. (A) (B) is a principal part enlarged view which shows the axial attachment part of a support piece. It is a principal part expanded sectional view which shows a cover fitting state. The electrical junction box which concerns on 2nd embodiment of this invention is shown, (A) is a side view which shows the state at the time of cover closing operation, (B) is a side view which shows the state at the time of cover open operation. The electrical junction box which concerns on 3rd embodiment of this invention is shown, (A) is a side view which shows the state at the time of cover closing operation | movement, (B) is a side view which shows the state at the time of cover opening operation | movement. It is a principal part enlarged view which shows the slide structure of the electrical junction box shown in FIG. 6, (A) is a top view, (B) is the BB sectional drawing of (A). It is a figure of a prior art example. It is a figure of another prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Electrical connection box 11 Case main body 12 Electrical component mounting part 13 Side wall 21 Cover 21A Cover for opening / closing 21B Cover not required for opening / closing 31 Supporting piece 34, 35 axis

Claims (4)

A cover that covers the entire upper surface opening of a case main body mounted on a vehicle is provided, and both left and right sides of the cover are connected to the case main body through a support piece so as to be opened and closed, and both ends of the support piece are respectively connected to the case main body and the cover. And can be freely pivoted
The cover closes the upper surface opening of the case main body in a horizontal posture during the closing operation, and lowers the rear side of the cover by rotating the support piece with the pivoting portion on the case main body side as a fulcrum during the opening operation. An in-vehicle electric junction box characterized by having a tilted posture in which the front side of the case main body is opened. A cover that covers the entire upper surface opening of the case body mounted on the vehicle is provided. The cover is divided in the front-rear direction so that the front side is an opening / closing cover, the rear side is an opening / closing unnecessary cover, and the opening / closing unnecessary cover is fixed to the case body. On the other hand, both the left and right sides of the opening and closing cover are connected to the case body through a support piece so as to be opened and closed, and both ends of the support piece are rotatably attached to the case body and the cover, respectively.
The opening / closing cover closes the front side opening of the case body in a horizontal posture during the closing operation, and rotates the support piece to the front side with the pivoting portion on the case body side as a fulcrum during the opening operation. An in-vehicle electrical junction box characterized in that the front side of the cover is inclined and the front side of the case body is opened. A cover that covers the entire upper surface opening of the case body mounted on the vehicle is provided. The cover is divided in the front-rear direction so that the front side is an opening / closing cover, the rear side is an opening / closing unnecessary cover, and the opening / closing unnecessary cover is fixed to the case body. On the other hand, the left and right sides of the opening and closing cover are connected to the left and right side walls of the case body so as to be slidable forward,
The open / close cover is configured to close the front opening of the case main body during the closing operation and to be drawn forward during the opening operation to open the front side portion of the case main body. .   The said cover act | operated at the time of the said opening operation | movement connects this cover and the front side of the said case main body via the detachable lock part at the time of closing. In-vehicle electrical junction box.

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