JP2000030795A - Waterproof connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waterproof connector wherein a first side insulator can be easily inserted into and pulled out a second side insulator. SOLUTION: This waterproof connector 1 comprises a first side insulator 2, a second side insulator 4 having a containing part 41 which the first side insulator 2 is inserted into and pulled out, and a sealing member 5 loaded on an outer surface of the first side insulator 2 and keeping watertight between the outer surface of the first side insulator 2 and the inner side surface delimiting the containing part 41. Here, the second side insulator 4 has an air passage 44 communicating the containing part 41 with the outside of the second side insulator 4. The sealing member 5 blocks up the air passage 44 when the first side insulator 2 is inserted to the prescribed position in the containing part 41.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a waterproof connector.

[0002]

2. Description of the Related Art A conventional waterproof connector has a first side insulator, a first side contact provided on the first side insulator, and a second side having a housing for accommodating the first side insulator so as to be freely inserted and withdrawn. An insulator, a seal member attached to an outer surface of the first-side insulator, and a watertight sealing member between an outer surface of the first-side insulator and an inner side surface defining the housing portion; and a second-side insulator. And a second side contact that contacts the first side contact.

[0003]

As described above, in the conventional waterproof connector, the space between the outer surface of the first insulator and the inner surface of the accommodating portion of the second insulator is made water-tight by the sealing member. When inserting the first-side insulator into the accommodating portion of the second-side insulator,
It is difficult for the air in the accommodating portion to be discharged, and therefore, it is difficult to insert the first-side insulator. Conversely, once the first-side insulator is inserted into the accommodating portion of the second-side insulator, the first-side insulator is not provided. When removing the first insulator from the storage section, it is difficult for air to flow into the storage section. Therefore, there is a problem that it is difficult to remove the first-side insulator due to a pressure difference between the inside and the outside of the storage section.

[0004] Therefore, an object of the present invention is to provide a waterproof connector that allows the first insulator to be easily inserted into and removed from the accommodating portion of the second insulator.

[0005]

According to the first aspect of the present invention, the first insulator, the first contact provided on the first insulator, and the first insulator are removably housed. A second insulator having an accommodating portion to be sealed, and a seal member mounted on an outer surface of the first insulator to make a watertight state between an outer surface of the first insulator and an inner surface defining the accommodating portion. And a second connector provided on the second insulator, the second connector being in contact with the first contact, wherein the second insulator connects the housing portion and the outside of the second insulator. An air passage communicating with the air passage, wherein the seal member closes the air passage when the first insulator is inserted to a predetermined position in the housing portion. Waterproof connector is obtained, characterized in that is made as to.

According to a second aspect of the present invention, there is provided the waterproof connector according to the first aspect, wherein the seal member has a projection, and the projection closes the ventilation path. can get.

According to a third aspect of the present invention, the first side insulator has a pin-shaped portion reaching the projection, and the projection is supported by the pin-shaped portion. A waterproof connector according to claim 2 is obtained.

[0008]

Embodiments of the present invention will now be described with reference to the drawings. 1A and 1B show a waterproof connector according to an embodiment of the present invention, in which FIG. 1A is a longitudinal sectional view in an unfitted state, and FIG. 1B is a longitudinal sectional view in a fitted state.
FIG. 2 is an exploded perspective view of the waterproof connector shown in FIG.

Referring to FIGS. 1 and 2, this waterproof connector 1 includes a socket insulator (first-side insulator) 2 and a socket contact (first-side contact) 3.
And a pin insulator (second side insulator) 4
, A seal ring (seal member) 5, and a pin contact (second side contact) 6.

The socket insulator 2 includes an insulator main body 21 and a lock portion 22 provided on the upper surface of the insulator main body 21. The insulator main body 21 has a protrusion 21 a formed at the end of the pin insulator 4 side, and a contact housing hole 21 b for housing the socket contact 3. The lock portion 22 has a protrusion 22a at one end.

The socket contact 3 is connected to the cable 7, is housed in a contact housing hole 21b of the socket insulator 2, and is fixed therein.
Further, a rubber stopper 8 is attached to the cable 7, and the inside of the contact receiving hole 21b is kept watertight by the rubber stopper 8.

The pin insulator 4 is substantially in the shape of a housing, and the insulator main body 2 of the socket insulator 2 is provided.
1 has a first accommodating portion 41 for accommodating the lockable portion 22 of the socket insulator 2, and a second accommodating portion 42 for accommodating the lockable portion 22 of the socket insulator 2. The first accommodating section 41 and the second accommodating section 42 are partitioned. A hole 43 is formed at the upper end of the pin insulator 4 for receiving a protrusion 22a provided on the lock portion 22 of the socket insulator 2. When the socket insulator 2 is completely fitted into the pin insulator 4, the lock 43 is locked. The projection 22 a of the portion 22 is fitted into the hole 43, and the socket insulator 2 is locked to the pin insulator 4 by fitting the projection 22 a and the hole 43.

The seal ring 5 is made of an elastic material and has a substantially frame shape. The seal ring 5 is provided with a projection 21 a formed on the insulator body 21 of the socket insulator 2.
Is fixed to the convex portion 21a by the retainer 9 attached to the convex portion 21a. When the socket insulator 2 is inserted into the pin insulator 4, the seal ring 5 is interposed between the outer peripheral surface of the projection 21 a and the inner surface of the pin insulator 4 that defines the first housing 41. Between the water.

The pin contact 6 is provided on the pin insulator 4 so as to protrude into the first accommodating portion 41. When the socket insulator 2 is fitted to the pin insulator 4, the pin contact 6 comes into contact with the socket contact 3. .

The above-mentioned pin insulator 4 has a ventilation hole (air passage) 4 for communicating the outside with the first accommodating portion 41.
4 are formed.

A projection 51 is formed on the seal ring 5 described above. The seal ring 5 is formed with a hole 52 reaching the protrusion 51, and a pin-like portion 21 c formed on the insulator main body 21 of the socket insulator 2 is inserted into the hole 52. The projection 51 is supported by the pin-shaped portion 21c. This projection 51
Means that the socket insulator 2 is a pin insulator 4
When the insulator main body 21 reaches a predetermined position in the first accommodating portion 41, the vent hole 44 is closed.

Since the waterproof connector 1 is configured as described above, when the socket insulator 2 is inserted into the pin insulator 4, the air in the first accommodating portion 41 is released through the vent hole 44. 4, the socket insulator 2 can be smoothly inserted. Conversely, when removing the socket insulator 2 from the inside of the pin insulator 4,
Since air flows into the first housing portion 41 through the ventilation hole 44, the removal of the socket insulator 2 can be performed smoothly. Of course, when the socket insulator 2 is completely fitted into the pin insulator 4, the vent hole 44 is closed by the projection 51 of the seal ring 5, so that watertightness is maintained.

In this embodiment, the air holes (air passages) 4
Reference numeral 4 denotes a simple hole, but the accommodation portion side of the ventilation path may be formed in a cylindrical shape, and the cylindrical portion may be closed by the end surface of the seal member.

Further, a plug may be attached to the second side housing with a cord or the like, and the plug may close the air passage at times other than when inserting and removing the first side housing.

[0020]

According to the waterproof connector of the present invention, since the air passage is provided, the first side housing can be easily inserted and removed when the first side housing is inserted into and removed from the second side housing.

Further, since the air passage is closed by the seal member when the first housing is completely fitted into the second housing, the airtight state can be maintained as before.

[Brief description of the drawings]

FIG. 1 shows a waterproof connector according to an embodiment of the present invention, in which (a) is a longitudinal sectional view in an unfitted state, and (b) is a longitudinal sectional view in a fitted state.

FIG. 2 is an exploded perspective view of the waterproof connector shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Waterproof connector 2 Socket insulator (1st side insulator) 21 Insulator main body 21a Convex portion 21b Contact storage hole 21c Pin-shaped portion 22 Lock portion 22a Projection 3 Socket contact (1st side contact) 4 Pin insulator (2nd side insulator) 41 First accommodating portion 42 Second accommodating portion 43 Hole 44 Vent hole (air passage) 5 Seal ring (Seal member) 51 Projection 6 Pin contact (second side contact) 7 Cable 8 Rubber plug 9 Retainer

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shuji Sugimoto 1-21-2 Dogenzaka, Shibuya-ku, Tokyo Inside Japan Aviation Electronics Industry Co., Ltd. (72) Inventor Tokuhisa Todo 1-21-2 Dogenzaka, Shibuya-ku, Tokyo No. Japan Aviation Electronics Industry Co., Ltd. F-term (reference) 5E087 EE02 EE14 FF06 FF12 LL03 LL12 MM05 RR12 RR25

Claims (3)

[Claims] A first insulator provided on the first insulator; a first contact provided on the first insulator;
A second insulator having an accommodating portion for accommodating the side insulator in a freely insertable manner, and a second insulator mounted on an outer surface of the first insulator and between an outer surface of the first insulator and an inner surface defining the accommodation portion. A waterproof member including a seal member for sealing the first member and a second contact provided on the second insulator, the second insulator being in contact with the first contact. A ventilating passage communicating with the outside of the two-sided insulator, wherein the seal member closes the vented passage when the first-sided insulator is inserted to a predetermined position in the housing portion; A waterproof connector characterized by the following. 2. The waterproof connector according to claim 1, wherein the seal member has a projection, and the projection blocks the air passage. 3. The waterproof connector according to claim 2, wherein the first side insulator has a pin-shaped portion reaching the projection, and the projection is supported by the pin-shaped portion.