JP3348684B2 - Electrical junction box cover mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover mounting structure for an electric connection box, and more particularly, to a case where a group of wires is pulled out of the electric connection box and the cover is mounted in a state where the group of wires is pressed down, the cover is pushed onto the group of wires. This prevents the electrical connection box from being easily detached from the electrical connection box.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 5, a large number of connector fitting portions 2 are provided in an electric connection box 1 mounted on an automobile. A connector connected to the terminal is fitted, and a large number of electric wire groups W are connected to the electric connection box 1. The electric junction box 1 is covered with a cover 3 for holding the electric wire, and the electric wire group W
A fixing frame 3b projects downward from the upper wall 3a of the cover 3 and a locking claw projecting from the outer surface of the case of the electrical junction box 1 into a locking hole 3c provided in a lower portion of the fixing frame 3b. 4
a is inserted and locked, and the cover 3 is attached to the electric connection box 1.

As described above, by protruding the fixing frame 3b from the upper wall 3a of the cover 3, a large opening S is provided above the electric connection box 1 so that a large number of electric wire groups W can be inserted. I have.

[0004] The electric junction box 1 to which the cover 3 is attached as described above is fixed to a stay 5 of an automobile as shown in FIG. That is, a stay attachment lock piece 6 is projected from the outer surface of the electric connection box 1, and a lock claw 6 a is provided on an upper surface of the stay attachment lock piece 6, while a lock hole 5 a is formed in the stay 5.
And the stay mounting lock piece 6 is bent to lock the locking hole 5.
After the insertion, the electrical connection box 1 is fixed to the stay 5 by locking the locking claw 6a to the upper edge of the locking hole 5a.

[0005]

The above-mentioned cover 3
Since the fixing frame 3b, which is relatively narrower than the upper wall 3a, is hung down, and the locking hole at the lower end of the fixing frame 3b is locked only to the locking claw 4 projecting from the electric connection box 1, When the upper wall 3a and the fixing frame 3b are pressed by the large number of electric wire groups W, the locking holes 3c are easily detached from the locking claws 4. That is, the mounting reliability of the cover to the electric connection box is low.

The electric junction box 1 is mounted on a vehicle and
If the cover 3 is detached from the electric junction box 1 before fixing the electric junction box 1, it is necessary to re-lock the cover 3 to the electric junction box 1 and then fix the electric junction box 1 to the stay 5. In addition, if the mounting reliability of the cover is low, it is necessary to check whether the cover 3 is securely locked to the electric connection box 1, and there is a problem that the number of working steps is increased.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object to improve the mounting reliability of a cover by securely mounting the cover to an electric connection box.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, according to the present invention, a cover engaging claw is projected from an outer surface of an electric connection box, and a stay mounting lock piece is projected below the same. A lock hole is provided in a lower portion of a fixing frame hanging down from an upper wall of a cover placed over the electrical connection box, and the cover locking claw is inserted into the lock hole to lock the cover to the electrical connection box. In the cover mounting structure for an electric junction box, the stay mounting lock piece has an opening at a position corresponding to the fixed frame, and a wrap portion passing through the opening is provided to extend below the fixed frame. While the stay is bent at the wrap portion, the locking hole is locked with the locking claw for the cover. In the locked state, the wrap portion is inserted into the opening of the stay, and the stay prevents the fixed frame from being deformed. To hold the electrical junction box and Provides a cover mounting structure for an electric junction box are.

In the cover, only the fixing frame protrudes on a side surface facing the stay mounting side, and no side wall is provided on both side surfaces orthogonal to the stay mounting side. A large gap is left between the two and a large number of wire groups are drawn out of the electrical junction box through the gap.

As described above, when the wrap portion extending from the lower portion of the fixing frame of the cover is passed through the opening provided in the stay attaching lock piece, the fixing frame is likely to be deformed by being pressed by the electric wire group. Also, deformation of the fixed frame is prevented by the stay. As a result, the locking between the locking hole of the fixed frame and the locking claw of the electric connection box does not come off, and the reliability of mounting the cover to the electric connection box can be improved.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, an electric connection box 10 provided with a number of connector fitting portions 11 and a cover 12 placed over the electric connection box 10 have substantially the same configuration as that of FIG.
Only a relatively narrow fixing frame 14 projects downward from the upper wall 13 of the cover 12 on the side of the stay 5 for fixing the lock, and a locking hole 15 is provided below the fixing frame 14. The cover 12 has no side walls on both side surfaces perpendicular to the stay mounting side, and has a large gap between the cover 12 and the electric connection box 10 in three directions above the electric connection box 10 to serve as a wire drawing portion.

An engaging claw 16 for engaging the cover is projected from an outer surface of the electric connection box 10 on a stay mounting side, and a fixing frame 14 is provided from above.
Are externally fitted to the electric connection box 10, the fixing frame 14 is bent to lock the locking holes 15 with the locking claws 16, and the cover 12 is attached to the electric connection box 10.

On the stay side of the electric junction box 10, a stay attaching lock piece 17 is provided below the engaging claw 16 in a horizontal direction. As shown in FIG. 2, the stay mounting lock pieces 17 are separated from the outer surface of the electric connection box 10 by left and right support portions 17 a.
The distal ends of the left and right support portions are connected by a connection portion 17b, and the flexible piece 17c is connected to the left and right support portions 17 by the connection portion 17b.
a pair of left and right lock claws 17d is provided on the upper surface of the flexible piece 17c. An opening 18 is provided at the center of the tip of the flexible piece 17c on the side of the electric connection box.

On the other hand, a wrap 19 extending below the fixed frame 14 of the cover 12 and inserted into the opening 18 is provided.

In the connector fitting portion 11 of the electric connection box 10,
A connector attached to the tip of the electric wire group is fitted, and a large number of electric wire groups are drawn out from above the electric connection box 10. The cover 12 is connected to the electric wire box W with respect to the electric connection box 10 in this state.
The cover 12 is attached to the electrical connection box 10 by holding the locking frame 15 from above and the fixing frame 14 projecting downward along the outer surface of the electrical connection box 10 so that the locking holes 15 are locked by the locking claws 16. I have.

More specifically, as shown in FIG.
When the tip 19a of the lower wrap portion 19 hits the locking claw 16, the fixed frame 14 descends while tilting. Wrap part 1
The tip 19a of the 9 is a lockable piece 17c of the stay fixing lock piece.
When it comes into contact with the upper surface of the movable member 17c, it presses the flexible piece 17c to bend downward. In this state, the locking hole 15 is locked with the locking claw 16, the fixing frame 14 returns from the inclined state to the vertical state along the outer surface of the electric connection box 10, and the lower lap 19 is also on the side of the electric connection box 10. Go to By the movement of the wrap 19, the flexible piece 17c is released from the pressing by the wrap 19 and returns to the original state, and the wrap 19 is inserted into the opening 18 on the distal end side of the flexible piece 17.

As described above, when the wrap portion 19 at the lower portion of the fixed frame 14 enters the opening 18 of the stay mounting lock piece 17, the fixed frame 14 is pressed by the electric wire group and the locking hole 15 is locked. Even if an attempt is made to incline in a direction away from the claw 16, the movement of the lower lap portion 19 is restricted by the flexible piece 17c.
5 can be prevented from coming off from the locking claw 16. In this manner, the cover 1 is mounted before the electric connection box 10 is mounted on the vehicle.
2 can be reliably prevented from coming off the electric connection box 10.

As described above, the electric wire group is connected to the electric connection box 10, and the cover 12 is mounted on the electric connection box 10 and mounted on the automobile while being pressed from above the electric wire group W, as shown in FIG. When the stay attachment lock piece 17 is inserted into the lock hole 5a of the stay 5 and the lock claw 17d abuts on the stay 5, the flexible piece 17c bends and passes through the lock hole 5a, and after passing the flexible piece 17c. Is restored to its original state, the lock claws 17d are locked on the upper edges of the locking holes 5a, and the electric connection box 10 is fixed to the stay 5.

[0020]

As is apparent from the above description, according to the present invention, an opening is provided in the stay mounting lock piece of the electric junction box, and the lower end of the fixing frame of the cover is extended more than before so as to wrap. With the improvement that only the portion is provided, even if the cover is pressed by the electric wire group, the cover can be securely attached to the electric connection box. As described above, since the reliability of the attachment of the cover to the electric connection box can be improved, when the electric connection box is mounted on the vehicle and attached to the stay, it is rechecked whether the cover is securely attached to the electric connection box. There is no necessity, and workability can be improved.

[Brief description of the drawings]

FIG. 1A is an overall perspective view showing an embodiment of the present invention, and FIG. 1B is an enlarged perspective view of a main part.

FIG. 2 is an enlarged plan view of a stay mounting lock piece of the embodiment.

FIG. 3 is a schematic front view showing a step of attaching a cover to the electric junction box of the embodiment.

FIG. 4 is a view showing a state in which the electric junction box of the embodiment is attached to a stay.

FIG. 5 is a perspective view showing a conventional example.

FIG. 6 is a view showing a state in which a conventional electric junction box is attached to a stay.

[Explanation of symbols]

 Reference Signs List 5 Stay 5a Locking hole 10 Electrical connection box 11 Connector fitting part 12 Cover 14 Fixed frame 15 Locking hole 16 Locking claw for locking cover 17 Stay mounting lock piece 17c Radial piece 17d Lock claw 18 Opening 19 Wrap Part W Electric wire group

Claims (2)

(57) [Claims] 1. A cover engaging claw protrudes from an outer surface of an electric connection box, and a stay mounting lock piece protrudes therebelow, while hanging from an upper wall of a cover placed over the electric connection box. In a cover mounting structure for an electric connection box, wherein a lock hole is provided at a lower portion of a fixing frame, and the cover lock claw is inserted and locked in the lock hole to fix the cover to the electric connection box. The piece has an opening at a position corresponding to the fixing frame, and a wrap portion passing through the opening is provided to extend to a lower portion of the fixing frame. The wrap portion covers the locking hole while bending the stay. The electrical connection is configured so that the wrap portion is inserted into the opening of the stay in the locked state, the fixing frame is prevented from being deformed by the stay, and the lock is held between the cover and the electrical connection box. Box cover mounting structure. 2. The cover according to claim 1, wherein only the fixing frame protrudes from a side surface facing the stay mounting side, and no side walls are provided on both side surfaces orthogonal to the stay mounting side. 2. A cover mounting structure for an electric junction box according to claim 1, wherein a large gap is provided between the upper wall and the upper wall, and a large number of electric wire groups are drawn out of the electric junction box through the gap.