JP3538884B2 - Electrical equipment having a waterproof packing structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention has a waterproof packing structure .
Related to electrical equipment .

[0002]

2. Description of the Related Art In an electric device having an upper case and a lower case, in which a main body of the electric device is housed and a wiring is connected to a board portion of the main body of the electric device,
When the upper case and the lower case are fitted to each other, and the wiring is led out from between the upper and lower cases, a waterproof packing is provided in the wiring lead-out portion so that the upper and lower cases are not flooded. I have.

As shown in FIGS. 4 and 5, the conventional waterproof packing is made of a synthetic rubber packing body 20. As shown in FIG.
In addition, a plurality of wiring insertion holes 21 are formed at predetermined intervals in the longitudinal direction of the packing body 20, and the opening ends of these wiring insertion holes 21 are closed with a film 22, which is easily broken by the film 22. A groove (not shown) is formed as described above.

Then, the waterproof packing is provided in the wiring lead-out portion, the film body 22 is broken at the groove, and the wiring is inserted into the wiring insertion hole 21.

[0005]

However, in the case of the above-mentioned conventional waterproof packing structure, the preparatory work for breaking the film body 22 of the wiring insertion hole 21 at the groove portion before wiring so that the wiring can be inserted. In addition, there is a problem that the wiring must be inserted into the wiring insertion hole 21 and workability is poor.

The present invention has been made in view of the above problems, and a first object of the present invention is to provide a waterproof packing structure capable of improving waterproof performance as compared with a conventional waterproof packing. Is to provide.

A second object of the present invention is to provide a waterproofing method capable of greatly improving workability.

[0008]

SUMMARY OF THE INVENTION The above-mentioned first object and
In order to achieve the second object , the electric equipment of the present invention
The upper case with the packing mounting part, the packing mounting part and
And a lower case having
Attached to each of the kin mounting part and the packing mounting part of the lower case
And two waterproof packings with double waterproof walls and
One end is connected to the main body of the electric equipment housed in the lower case
Provided wiring, the upper case and the lower case
The two waterproof packings are fitted together to form a double waterproof wall
Presses and holds the wiring at the edge of the portion, and the other end of the wiring
Are led out through the wiring alignment section .

[0009]

According to the waterproof packing structure of the present invention, when the waterproof wall portion is brought into contact with the wiring at the edge thereof to waterproof the lead-out portion of the wiring, even if water passes through the outer waterproof wall portion. Since the inside waterproof wall prevents water from entering, the waterproof performance can be improved as compared with the conventional waterproof packing.

Further, in the waterproofing method of the present invention, for example, only one waterproof packing is provided in one case and the other waterproof packing is provided in the other case, and the two cases are fitted together and assembled. Since the wiring is sandwiched between the waterproof walls of the waterproof packing to complete the waterproofing work, the work of opening the wiring insertion hole and then passing the wiring through the wiring insertion hole does not occur as in the conventional waterproof packing. Can be greatly improved. Further, since the waterproof packing having the same shape is used as a pair, the parts can be effectively used.

[0011]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a waterproof packing structure according to the present invention. FIG. 2A is a front view of the waterproof packing structure.
(2) is a sectional view taken along line AA of (1), (3) of FIG. 2 is a sectional view taken along line BB of (1), and FIG. 3 is a case of a waterproof packing structure according to the present invention. FIG. 4 is an exploded perspective view showing an assembled state.

In FIG. 1, reference numeral 1 denotes a waterproof packing. The waterproof packing 1 is formed by integrally forming a receiving portion 4, a double waterproof wall portion 5, and a plurality of reinforcing ribs 6 from synthetic rubber. ing. That is, the waterproof packing 1 has a packing body 2, and one side of the packing body 2 is
On the other side, waterproof walls 5 are formed doubly, and these waterproof walls 5 are located in the same plane as the front and back surfaces of the receiving portion 4. A plurality of reinforcing ribs 6 are provided between the waterproof wall portions 5 at predetermined intervals in the longitudinal direction of the packing body 2.

In the figure, 7 is an upper case, and 8 is a lower case. A packing mounting portion 10 is formed on an end surface 9 of the upper case 7, and a wiring alignment member 12 is mounted on an end surface 11 of the lower case 8. A packing is mounted on a rear portion of the wiring alignment member 12. A part 13 is formed.

The waterproof packing 1 is mounted on the packing mounting portion 10 of the upper case 7 with its receiving portion 4 up, and the packing mounting portion 13 of the lower case 8 is mounted.
, The waterproof packing 1 is mounted with its receiving portion 4 down, and the upper and lower waterproof packings 1 are attached to the waterproof wall portions 5.
Are made to face each other.

An electric device main body 14 is accommodated in the lower case 8, and a wiring 16 having one end connected to a board portion 15 of the electric device main body 14 is placed above the lower waterproof packing 1. And the alignment portion 12 of the wiring alignment member 12
The other end is led out through a.

Therefore, when the electric device is assembled by fitting the upper case 7 to the lower case 8, the wiring 16 is pressed and held between the waterproof wall portions 5 of the upper and lower waterproof packings 1. In this case, since the waterproof wall portion 5 is double inside and outside, even if water passes through the outer waterproof wall portion 5, the inside waterproof wall portion 5 prevents water from entering, compared with the conventional waterproof packing. The waterproof performance is improved.

Further, since the wiring 16 is sandwiched between the waterproof walls 5 of the upper and lower waterproof packings 1 and the waterproofing operation is completed only by assembling the upper and lower cases 7 and 8 with each other.
As in the case of the conventional waterproof packing, the work of opening the wiring insertion hole and then passing the wiring through the wiring insertion hole does not occur, so that the workability can be greatly improved.

Further, since the waterproof packing having the same shape is used as a pair, the parts can be effectively used.

[0019]

As described above, in the waterproof packing structure of the present invention, since the waterproof wall portion formed in the packing body in contact with the wiring at the edge portion thereof is double, the waterproof wall portion is formed as follows. In the case where water is passed through the outer waterproof wall when the lead-out portion is in contact with the wiring at the edge, the inner waterproof wall prevents water from entering even if water passes through the outer waterproof wall. Performance can be improved.

Further, the waterproofing method of the present invention uses two waterproof packings formed by forming a double waterproof wall in contact with the wiring at the edge of the packing body, and using the two waterproof packings. Since the wiring was pressed and held at the edge of the waterproof wall, for example, one waterproof packing was provided in one case, the other waterproof packing was provided in the other case, and both cases were fitted together. Just by assembling, the wiring is sandwiched between the waterproof walls of the waterproof packing and the waterproofing work is also completed, so that the work of passing the wiring through this wiring insertion hole after opening the wiring insertion hole like the conventional waterproof packing does not occur. Therefore, the workability can be greatly improved.

Further, since the waterproof packing having the same shape is used as a pair, the parts can be effectively utilized.

[Brief description of the drawings]

FIG. 1 is a perspective view of a waterproof packing structure according to the present invention.

FIG. 2A is a front view of the waterproof packing structure. (2) is a cross-sectional view along line AA of (1). (3) is a cross-sectional view along line BB of (1).

FIG. 3 is an exploded perspective view showing an assembled state of a waterproof packing structure according to the present invention in a case.

FIG. 4 is a perspective view of a conventional waterproof packing structure.

FIG. 5A is a cross-sectional view of the waterproof packing structure. (2) is a side view of the waterproof packing structure (3) is a plan view of the waterproof packing structure.

[Explanation of symbols]

2 Packing body 5 Waterproof wall 6 Reinforcement rib

Continuation of the front page (56) References JP-A-58-31598 (JP, A) JP-A-64-83792 (JP, A) JP-A-55-175273 (JP, U) JP-A-61-179784 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) H05K 5/06 H05K 7/00

Claims (1)

(57) [Claims] An upper case having a packing mounting portion;
A lower case having a mounting portion and a wiring alignment portion;
Upper case packing mounting part and lower case packing
Two guards mounted on each mounting part and having a double waterproof wall
Water packing and electrical equipment book housed in the lower case
A body having one end connected to the body, and the upper case and
The two waterproof packs are fitted by fitting the lower case.
Press-clamp the wiring at the edges of the double waterproof wall of
The other end of the wiring is led out through the wiring alignment section.
Electrical equipment characterized in that: