JPH0321020Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a waterproof connector that can exhaust internal air when mating is performed and can reliably connect connecting terminals to each other.

[Prior Art] Conventionally, when a waterproof connector is fitted, there is no escape for the air inside the housing, and as the housings are pushed together, the air inside is compressed, creating a pushing resistance force. Therefore, in some cases, the fitting may not be sufficient, and the connection terminals may not be able to reliably connect to each other.

[Purpose of the invention] An object of the invention is to provide a waterproof connector that can expel internal air to the outside during mating and perform complete mating without increasing internal pressure.

[Summary of the invention] The gist of the invention to achieve the above objectives is as follows:
A waterproof connector that connects connection terminals housed in each housing by sealingly fitting the first and second housings,
The first housing is provided with a vent hole that passes between the inside and the outside for releasing internal air to the outside when the two housings are fitted together, and the second housing is provided with a blockage that closes the vent hole when the fitting of both the housings is completed. This is a waterproof connector characterized by having a section.

[Embodiments of the invention] The invention will be described in detail based on illustrated embodiments.

The waterproof connector according to the present invention consists of a male housing and a female housing. FIG. 1 is a perspective view of the male housing 1 made of synthetic resin, and FIGS. 2 and 3 are the male housing 1 and the female housing. FIG. 2 is a cross-sectional view of main parts of the housing 2 in a fitted state. The male housing 1 has a frame part 3 at its front end that fits into the mating female housing 2, and a fixing part 4 at its rear end for storing and fixing connection terminals. A vent hole 5 is provided at the rear of the frame portion 3 and communicates with the inside and outside of the frame portion 3, and a cylindrical seal member 6 is fitted into the vent hole 5. In addition, 7 is the female type housing 2
This is a locking pawl for locking the lock lever 8.

Figure 2 shows male housing 1 and female housing 2.
FIG. 2 is a cross-sectional view of the female housing 2 when the two are fitted together, and the lock lever 8 provided on the female housing 2 is just before it is activated. A rubber annular seal member 9 is attached to the inside of the female housing 2 that receives the male housing 1, and this seal member 9 seals both housings 1,
The interior of 2 is sealed from the outside.
Furthermore, the lock lever 8 of the female housing 2 engages with the locking piece 7 of the male housing 1 when the two housings 2 are fitted together, thereby locking the housings 1 and 2 so that they do not come off accidentally. A closing portion 10 is provided at the tip of the lock lever 8 to lock the locking pawl 7 and close the ventilation hole 5 as shown in FIG. 3 when the lock lever 8 is fitted.

Therefore, when the two housings 1 and 2 are fitted together, as the male housing 1 is inserted into the female housing 2, the air inside them is pushed out through the vent hole 5, and the lock lever 8 is pushed out at the same time as the fitting is completed.
passes over the locking piece 7 and the closing portion 10 closes the ventilation hole 5, so that the insides of both housings 1 and 2 are sealed.

FIG. 4 shows a case in which a protrusion 10a is provided at the tip of the closing part 10, and since the protrusion 10a enters into the vent hole 5 when it is closed, sealing becomes more reliable.

5 and 6 show a second embodiment, in which the vent hole 5 is provided in the inner part of the frame 3 of the male housing 1, and the protrusion 10b at the tip of the female housing 2 serves as the closing part. It enters into the ventilation hole 5 and closes the ventilation hole 5.

Moreover, FIG. 7 and FIG. 8 show a third embodiment,
A lid part 12 is attached to the outside of the ventilation hole 5 provided in the lower part of the frame part 3 of the male housing 1, which is provided integrally with the male housing 1 and can be opened and closed by a hinge 11. This hinge 11 is provided on the female housing 2 side, and when the female housing 2 is fitted, the frame 13 of the female housing 2 acts as a closing part and presses down the lid 12 from the outside, so that the lid 12 itself closes the vent hole 5. It operates. Even when the housings 1 and 2 are separated, the blocking part 10 comes off from the vent hole 5 in the initial process, and external air flows into the interior through the vent hole 5.
There is no possibility of negative pressure inside and hindering separation.

[Effects of the invention] As explained above, the waterproof connector according to the invention has a vent hole that pushes out internal air when mating is completed, and this vent hole is closed by the mating housing when mating is completed. In addition to maintaining the waterproof function, it is possible to completely fit the connecting terminals together during fitting.

[Brief explanation of the drawing]

The drawings show an embodiment of the waterproof connector according to the present invention, and FIG. 1 is a perspective view of a male housing, and FIG. 2 is a perspective view of a male housing.
3 are sectional views of the main parts of the male and female housings according to the first embodiment, FIG. 4 is a sectional view of the main parts showing a modified example of the closing part, and FIGS. FIGS. 7 and 8 are sectional views of essential parts of the third embodiment. 1 and 2 are housings, 3 and 13 are frame parts, and 5
1 is a ventilation hole, 6 is a sealing member, 7 is a locking pawl, 8 is a lock lever, 10 is a closing portion, 10a, 10b are protrusions, 11 is a hinge, and 12 is a lid portion.

Claims (1)

[Claims for Utility Model Registration] 1. A waterproof connector that connects connection terminals housed in the respective housings by sealingly fitting the first and second housings, wherein the first housing The second housing is provided with a vent hole that passes between the inside and the outside for releasing internal air to the outside when the two housings are fitted together, and the second housing is provided with a closing part that closes the vent hole when the fitting of both the housings is completed. A waterproof connector featuring: 2. The waterproof connector according to claim 1, wherein an elastic sealing member is attached to the ventilation hole. 3. The waterproof connector according to claim 1, wherein the closing portion is provided at the tip of the lock lever of the second housing. 4. According to claim 1 of the registered utility model, the closing portion is provided at the tip of the second housing that enters the first housing, and the ventilation hole is closed inside the first housing. Waterproof connector as described. 5. The waterproofing according to claim 1, which is a registered utility model, wherein a lid part is provided on the outside of the ventilation hole so as to be openable and closable by a hinge and covers the ventilation hole, and the lid part is closed by the closing part. type connector.