JP3046708B2 - Fusible link box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fusible link box for a vehicle or the like.

[0002]

2. Description of the Related Art For example, in a truck, as shown in FIG. 5 , a box 2 is provided in a chassis frame 1 for intensively storing fusible links for protecting a power supply circuit of an electric component (public skill number 89-15152). . Box 2
As shown in FIGS. 6 and 7, the main body 3 includes a mounting portion to be attached to the chassis frame 1, and a lid portion 4 that covers an opening surface thereof. A fusible link fuse block (not shown) is provided inside. Put in. A grommet 5 for pulling out a harness is fitted to the main portion 3, and a seal 6 for sealing an opening edge including the grommet 5 is provided on the lid portion. In order to dissipate the heat caused by the current flow in the box 2 to the outside, an example in which a ventilation hose 7 is attached to the bottom of the lid 4 as shown in FIG. 8 is also seen. An open air hole 8 is integrally formed.

[0003]

By the way, in such a conventional example, a lateral ventilation hole 8 or a ventilation hose 7 having a long passage is used.
In order to prevent intrusion of splashing water or the like into the box 2 from the outside, if water does enter, water is collected by the inclination of the vehicle as shown in FIG. There is a concern that such a problem.

[0004] The present invention has been made in view of such problems, and has as its object to provide a fusible link box that can maintain good drainage even when the vehicle is inclined.

[0005]

Means for Solving the Problems] In the first invention, the fusible link box such as a vehicle, the box
The corner of the bottom of the box is used as a vent to release the heat of the box to the outside.
The concave space to be raised and the space open in the box
Notches and recesses in part of the box side wall surrounding the recess space
And a notch window for enlarging a downward opening of the space .

In the second invention, a fusible device such as a vehicle is used.
In the link box, the vehicle is tilted
Large inclination angle that the bottom of the box does not change even if
With the box attached to the chassis frame
Heat inside the box to the corner located at the bottom of the box
Empty space to raise the bottom of the box as a vent hole to escape to
A notch opening between the space and the box, and a recess
Downward opening of the concave space on a part of the box side wall surrounding the space
And a notch window for enlarging the mouth .

[0007]

According to the first aspect , good ventilation and water in the box are provided.
In addition to ensuring regular handling, splashing water from the outside
Even if it is hung, water is splashed by the recess through the notch
Jumping into the box can be prevented .

[0008] In the second invention , when the bottom of the box is
Because it is constant, vent holes are formed only in that area
It only needs to be done .

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG . 1, reference numeral 10 denotes a fusing link box of a vehicle, the rear side of which is fixed to a chassis frame (see FIG. 5 ). The box 10 is composed of a main part 12 having a flange 11 to be attached to the chassis frame, and a lid part 13 that covers an opening surface of the main part 12, and the fuse block 15 of the fusible link 14 is accommodated in the main part 12.
A grommet 17 for pulling out a harness is fitted to the notch 16 from the opening edge of the main portion 12, and the grommet 17 is provided.
The lid 13 is provided with a seal (not shown) for sealing the opening edge including the engaging portion of the above. Vent holes 18 are opened at the corners at the bottom of the box 10 on both front and rear sides along the chassis frame in order to dissipate the heat due to the current flow in the box 10 to the outside.

As shown in FIG. 2 and FIG.
A concave portion 20 for raising the corner of the bottom of the box 10;
A notch 21 is provided which opens into the box 10 on the side.
You. The recess 20 defines a space opened to the lower surface of the box 10.
The box side to expand the open area
A cutout window 22 is formed in a portion of the wall. Notch 21
In the notch window 22 at the corner of the raised surface in the box 10
It is opened to avoid facing each other, but prevents penetration of splashing water etc.
If draining is more important than stopping, lower the position of hole 21
So that it opens at the same height as the bottom of the box 10
You may .

With such a configuration, the inside of the box 10
The heat is released to the outside through the ventilation holes 18. Splashing water from outside
Notch is notched due to recess 20
It is possible to prevent entry into the box 10 through the hole 21
You. Even if the vehicle leans back and forth,
Since the corner is lowered, the vent hole 18 that opens at that location is
The water inside flows out to the outside. That is, box 1
Good drainage within 0 can be constantly ensured. On the lid 13
Also, if the vent hole 18 is provided at the bottom corner of the box 10 , the vehicle
Can be drained to collect water on the lid 13 side .

Box 10 is restricted to the layout on the vehicle
And cannot be placed vertically vertically.
Even if it is attached to the frame 1 at an angle, the box 1
0 Vent holes 18 open at the bottom corners for good drainage
Can be secured. Whether there are restrictions due to the layout on the vehicle
Regardless, the box 10 is attached with a positive inclination.
That is, no matter which way the vehicle leans, the lowest angle of the box 10
Is given to the box 10 at the same inclination angle,
It is only necessary to form the ventilation holes 18 only at the site (one corner)
No.

Notch window on the side wall of box 10 surrounding recess 20
22, the opening area of the concave portion 10 can be increased.
The inside of the box 10 can be satisfactorily ventilated .

[0014]

According to the first aspect of the present invention, in a fusible link box such as a vehicle , heat in the box is transferred to the outside.
A concave that raises the corner of the bottom of the box as a vent hole to escape to
Part space and a notch hole that opens the space into the box,
A part of the side wall of the box surrounding the concave space faces downward of the concave space
Good because the notch window that enlarges the opening
Ventilation and water drainage can be constantly maintained, and external repellent
Notches are notched due to recesses even when splashed
Jumping into the box through the hole can be prevented .

According to the second aspect of the present invention, a huge vehicle such as a vehicle is provided.
In the bull link box, whether the vehicle is
Large inclination angle that the bottom of the box does not change even if it is inclined
When attaching the box to the chassis frame
The heat inside the box at the bottom corner of the box
A concave that raises the bottom of the box as a ventilation hole to escape to the outside
Part space and a notch hole that opens the space into the box,
A part of the side wall of the box surrounding the concave space faces downward of the concave space
A notch window to expand the can opening, the so integrally formed, box
Because the bottom of the box is always constant, limit it to that part
There is also an effect of requiring simply by forming a vent hole.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a partial perspective view of the same box .

FIG. 3 is a view taken in the direction of arrow A and a sectional view taken along line BB of FIG .

FIG. 4 is a mounting state diagram showing another embodiment.

FIG. 5 is a mounting state diagram illustrating a conventional example .

FIG. 6 is an external perspective view of the same .

FIG. 7 is a partial sectional view of the same .

FIG. 8 is a partial sectional view showing another conventional example .

FIG. 9 is an explanatory diagram of a conventional example .

[Explanation of symbols]

 Reference Signs List 10 fusible link box 12 box main part 13 box lid part 14 fusible link 17 grommet 18 for pulling out harness 18 vent hole 20 recess 21 notch hole 22 notch window

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI H05K 7/20 H05K 7/20 G (56) References JP-A-7-57612 (JP, A) JP, U) Japanese Utility Model 5 90274 (JP, U) Japanese Utility Model 1-167082 (JP, U) Japanese Utility Model 63-2353 (JP, U) Japanese Utility Model 5-91994 (JP, U) 50-27079 (JP, Y1) Practical application Microfilm (JP, U) (58) Survey that photographed the contents of the specification and drawings attached to the application of Japanese Patent Application No. 1-144995 (Japanese Utility Model Application No. 3-83419). Field (Int.Cl. ⁷ , DB name) H01H 85/22 H01H 85/02 B60R 16/02 H05K 7/20

Claims (2)

(57) [Claims] In a fusible link box for a vehicle or the like, a boring hole is provided as a vent for releasing heat in the box to the outside.
Space to raise the corner of the bottom of the box
Notch opening in the box and box surrounding the recessed space
Notch window that enlarges the downward opening of the concave space in a part of the side wall
And a fusible link box formed integrally with the fusible link box. 2. A fusible link box for a vehicle or the like.
In any case, regardless of whether the vehicle is tilted
Chassis with a large inclination angle where the bottom does not change
The box at the bottom of the box
The vent located in the corner located to release the heat inside the box to the outside
And the concave space to raise the bottom of the box
Notch opening in box and box surrounding recessed space
Notch to enlarge the downward opening of the concave space in a part of the side wall
A fusible link box characterized by integrally forming a window and a window .