JPH09213408A - Waterproof connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve mounting workability of a housing seal, by forming a rib along an inserting/removing direction of a connector in an opening part internal peripheral surface of a connector housing. SOLUTION: A rib 12 is formed along an inserting/removing direction at a connector in an opening part internal peripheral sure ace 11 of a connector housing 10. This rib 12 is formed in the depth from a Fitting end 13 of the connector housing 10, a slope is formed in one or both ends of the rib 12. In a part of the connector housing 10 into contact with a housing seal 20 of external diametric dimension a little smaller than an opening part of the connector housing 10, the housing seal 20, having an annular sealing protrusion 14 along an opening part internal periphery of the connector housing 10, is provided.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a waterproof connector.

[0002]

2. Description of the Related Art In a conventional waterproof connector, as shown in FIG. 4, a housing seal 120 is inserted into an opening in a connector housing 110 (in the direction of arrow Y), and a locking projection 121 of the housing seal 120 is provided on the connector housing. It is locked in the locking hole 114 of 110. The housing seal 120 is a component that closely seals the connector housing 110 and a mating connector housing that is a mating partner of the connector housing 110 in a gap formed when the connector housing 110 and the mating connector housing are fitted to each other without causing a problem in electrical connection of the connector. is there. The housing seal 120 once locked in this way
Although not shown in the figure, it does not come off from the connector housing 110 even after being inserted into and removed from a mating connector housing which is a mating partner of the connector housing 110.

[0003]

However, in the conventional waterproof connector, when the housing seal is mounted in the connector housing through the opening, the locking protrusion of the housing seal protrudes outside the opening inner diameter by design. ,
There was a problem that it was difficult to wear. For example, if an operator picks up the locking projection of the housing seal with his finger and deforms it and inserts it into the opening of the connector housing, the housing seal will have a distorted shape. There has been a problem that the locking projection is not easily locked in the locking hole of the connector housing.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a waterproof connector having improved workability in mounting a housing seal.

[0005]

A waterproof connector according to a first aspect of the present invention is characterized in that a rib is formed on an inner peripheral surface of an opening of a connector housing along a connector inserting / removing direction.

Since the ribs are formed on the inner peripheral surface of the opening of the connector housing along the connector insertion / removal direction as described above, when the housing seal is mounted on the connector housing, only a slight height of the ribs makes the housing seal. Need only be partially compressed. Since the housing seal is moved in contact with the rib, it is unlikely to be displaced, and the housing seal can be smoothly inserted along the rib.

According to a second aspect of the present invention, there is provided the waterproof connector according to the first aspect, wherein a rib is formed from a mating end of the connector housing to a rear side, and one end or both ends of the rib form a slope. It is a feature.

Since the rib is formed from the mating end of the connector housing to the back side, when the housing seal is inserted into the opening of the connector housing, the housing seal catches on the rib and is difficult to insert. Does not occur. Since there is no rib in this opening, the housing seal can be smoothly inserted once, and the housing seal can be provisionally positioned at the final mounting position of the housing seal further in the back of the connector housing.
The mounting of the housing seal is completed simply by pushing in with a mating connector or jig after the positioning.

Further, since one end or both ends of the rib form a slope, when the housing seal is further inserted through the opening of the connector housing and the housing seal moves on the slope of the rib, the housing seal gradually becomes the rib. Is pressed by. Therefore, there is no problem that the housing seal is caught on the end of the rib and is difficult to insert or is damaged.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a partially cutaway perspective view showing a waterproof connector according to the present invention. FIG. 2 is a sectional view taken along line AA of FIG. FIG. 3 is a sectional view showing a fitted state of the waterproof connector according to the present invention.

As shown in FIG. 1, the waterproof connector mainly comprises a connector housing 10, a housing seal 20, and terminals (not shown) to which electric wires are connected. The connector housing 10 is made of engineering plastic (for example, PBT, polyamide, polyacetal, ABS, polycarbonate, vinyl chloride, etc.). A rib 12 is formed on the inner peripheral surface 11 of the opening of the connector housing 10 along the connector insertion / removal direction. Further, it is preferable that the rib 12 is formed deep from the fitting end 13 of the connector housing 10 so that one end or both ends of the rib 12 form a slope. Although two ribs are shown above and below the opening inner peripheral surface 11 in FIG. 1, the installation location and the number of installations are not particularly limited to this, and may be on the left and right sides of the opening inner peripheral surface 11, for example. .

The housing seal 20 is made of a sealing material such as rubber. The housing seal 20 is
It is preferable that the connector housing 10 is formed to have an outer dimension slightly smaller than the opening of the connector housing 10 to be housed, because the connector housing 10 can be easily inserted during mounting. Further, the housing seal 20 is provided with a required number of through holes for mounting connector terminals (not shown).

More specifically, as shown in FIG. 2, a sealing projection 14 is formed at a portion of the connector housing 10 that contacts the housing seal 20 as shown in FIG. The sealing projection 14 is provided in the connector housing 10.
An annular protrusion is formed along the inner circumference of the opening (but outside the connector terminal), and the adhesion at the time of contact with the housing seal 20 can be enhanced, and the waterproof and dustproof effects can be further enhanced. It should be noted that the housing seal 20 has an opening inner peripheral surface 1
1 and the ends of the ribs 12 and the sealing projections 14 come into contact with each other and are mounted on the connector housing 10. Absent.

The mating state of the connectors will be described. As shown in FIG. 3, the mating connector housing 30 is inserted through the opening of the connector housing 10, and the housing tip 31 presses the housing seal 20. At this time, the housing seal 20 is sandwiched between the housing tip portion 31 and the sealing projection, and is in a close contact state with no gap. Therefore, the connector is sealed by the housing seal 20.

[0015]

As described above, according to the waterproof connector of the first aspect, the ribs are formed on the inner peripheral surface of the opening of the connector housing along the connector insertion / removal direction, so that the workability of mounting the housing seal is improved. It is possible to provide a waterproof connector having improved performance. Further, according to the waterproof connector of the present invention, the rib is formed from the fitting end of the connector housing to the inner side, and one end or both ends of the rib forms a slope, so that the housing seal can be inserted smoothly. Thus, it is possible to provide a waterproof connector having improved mounting workability.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing a waterproof connector of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a sectional view showing a fitted state of the waterproof connector of the present invention.

FIG. 4 is a perspective view showing a conventional waterproof connector.

[Explanation of symbols]

 10 Connector Housing 11 Opening Inner Surface 12 Rib 13 Fitting End

Claims (2)

[Claims] 1. An inner peripheral surface of an opening of a connector housing,
A waterproof connector having ribs formed along the connector insertion / removal direction. 2. The waterproof connector according to claim 1, wherein a rib is formed on the inner side of the fitting end of the connector housing, and one end or both ends of the rib forms a slope.