JPH04133366U - waterproof connector - Google Patents

Abstract

(57) [Summary] [Purpose] Seal ring mounting position in a waterproof connector in which the hood part and terminal accommodating part of the first half of a pair of connector housings are fitted together, and a waterproof seal ring is attached to the fitted part. stability and prevent the shape of the connector from becoming enlarged. [Structure] A flange portion 11 is formed on the outer periphery of a separate retainer 10 for preventing half-insertion of the terminal, and a seal ring 6 is provided.
has a seal portion 7A7B provided at the front and rear of the connector housing in the fitting direction, and a bottomed fitting slot 9 provided around the inside of the ring body, and the flange portion 11 is inserted into the fitting slot 9.
The seal ring 6 is fitted onto the outer periphery of the retainer 10 to integrate the retainer 10, and the retainer 10 is attached and locked to the bottom of the hood portion 2 of the male connector housing 1, and the hood portion 2 of the paired connector housings is fitted. It is characterized by a waterproof structure in which the seal part 7A7B is pressed against the seal receiving part 12 at the bottom of the terminal accommodating part 12 and the front end surface 13 of the terminal accommodating part 4.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention uses rubber at the mating part of the female connector housing and male connector housing. This relates to a waterproof connector that is fitted with a seal ring made by the company.

0002

[Conventional technology]

The seal ring in a conventional waterproof connector is installed inside the ring body, as shown in Figure 3. A seal that has a seal portion 8 on the circumferential side and the outer circumferential side, and has a locking protrusion 16 protruding outward. The seal ring 6 is attached to the hood of the first half of the male connector housing 1. At the same time, the locking protrusion 16 is inserted into the locking hole 17 provided in the hood portion 2. the female connector housing to this hood part 2. Fit the terminal accommodating part 4 in the first half of the hood part 3, and insert the seal ring 6 between the inner circumference and the end of the hood part 2. One has a structure that is pressure-contacted with the outer periphery of the child housing part 4 to make it waterproof, and the other has a locking protrusion 1 as shown in FIG. A rubber seal ring main body 19 is integrally formed on a resin base 18 with 6 protruding from the resin base 18. A seal ring 6 with a resin locking protrusion is installed in the same manner as shown in Fig. 3. be.

0003 Furthermore, as shown in Fig. 5, it is possible to prevent half-insertion of the terminal inserted into the connector housing, In order to improve the holding force of the terminal, a separate retainer 10 is attached to the mating part of the connector. In the case of a connector to be attached and locked, a A structure is adopted in which the rear of the seal ring 6 is pushed and fixed by this retainer 10. It is.

0004

[Problem that the idea aims to solve]

The above conventional seal ring fixing means each have the following disadvantages. Ru. That is, in the case of FIG. 3, the locking protrusion 16 is made of rubber, so it is difficult to secure the necessary locking force. The seal does not have enough rigidity to seal when separating the mated male and female connector housings. Due to the pull-out resistance that the ring 6 receives, the locking protrusion 16 easily tilts and the seal ring is removed. The plug 6 may come off from the connector housing.

[0005] In addition, the locking protrusion 16 in Fig. 4 is made of resin and has a high locking force, and the seal ring 6 does not come off, but because the resin and rubber are integrally molded, the cost is high and it is not practical. In addition, the connector housing shown in Figure 5 has no damage during transport or handling. Protective hood 1 of seal ring 6 is installed to prevent foreign matter from adhering to seal ring 6. 9 needs to be provided in the female connector housing 3, which causes the shape of the connector to become bulky. There is a problem with the display.

[0006] The present invention provides a waterproof connector that solves the above-mentioned difficulties of the conventional technology. Ru.

[0007]

[Means to solve the problem]

The waterproof connector of this invention, which solves the above technical problems, has a connector housing on one side. Insert the terminal housing section on the first half of the connector housing into the concave hood section on the first half of the connector housing on the other side. At the same time, a seal ring is interposed between the terminal accommodating part and the hood part, and A waterproof connector that attaches and locks a separate retainer to the mating part to prevent half-insertion of the terminal. The seal ring is provided at the front and rear of the connector housing in the mating direction. The retainer has a sealing portion and a bottomed fitting slot circumferentially provided from the inside of the ring body, and the retainer includes: The seal ring has a shape including a flange portion that fits into the fitting slot. The retainer, which is fitted onto the outer periphery of the integrated retainer, is attached to the hood of the connector housing on the other side. The front end surface of the terminal accommodating part of the connector housing on one side and the other side A waterproof structure in which the seal portion is pressure-bonded to the bottom of the hood portion of the connector housing. ” is a characteristic.

[0008]

[Effect]

The waterproof connector of the present invention with the above configuration is located at the front of the connector housing in the mating direction. and a separate retainer fitted around the outer circumference with a seal ring having a sealing part on the rear side. It has a structural feature that is attached and locked to the bottom of the hood of the connector housing, so it When the terminal accommodating part of the mating connector housing is fitted to the hood part of the The seal part of the ring is fitted on the front end surface of the terminal housing part on one side and the bottom of the hood part on the other side. The insides of the pair of connector housings that are in pressure contact and in the mating position are effectively waterproofed.

[0009] The seal ring, which has a waterproof effect, is fitted onto the retainer. The front end of the terminal accommodating part on one side of the connector housing that is integrated with and fitted with and the bottom of the hood on the other side, so it is easy to remove the mated connector housing. The mounting position of the seal ring is stable without receiving any resistance when it is removed.

0010 Furthermore, the seal ring is integrated with the retainer and is connected to the connector housing on the other side. The seal ring is attached to the bottom of the hood of the connector housing. There is no need to provide locking means dedicated to the seal ring, such as locking holes and locking protrusions. Moreover, the sealing ring is well protected by the surrounding wall of the hood, so This eliminates the need for a hood to protect the ring and prevents the connector from becoming enlarged.

[0011]

【Example】

Hereinafter, a detailed description will be given with reference to FIGS. 1 and 2 showing a waterproof connector according to an embodiment of the present invention. Ru. That is, the front half of the female connector housing that accommodates the female terminals (not shown) The columnar terminal accommodating portion 4 is inserted into the recess in the front half of the male connector housing 1 in which the male terminal 5 is accommodated. It fits into the hood part 2 of the recessed part, and the fitting part of both of them prevents half-insertion of the terminal. Separate retainer 10 intended to improve terminal retention force and waterproof seal ring 6 are included. In a waterproof connector that is installed and locked, the seal ring 6 is attached to the connector housing. A seal ring 8 is provided at the front and rear of the mating direction (front and rear of the seal ring 6). It forms a ring body having ring parts 7A and 7B, and a bottomed ring body is provided around the ring body from the inside. It has a fitting slot 9.

0012 On the other hand, the retainer 10 has a plate-like flange portion 11 formed on the outer periphery. Fit the flange portion 11 of the seal ring 6 into the fitting slot 9 of the seal ring 6. The retainer 10 is made into an integral piece fitted on the outer periphery of the male connector housing 1. It is attached and locked to the bottom of the hood part 2. Then, attach the mating housing to the hood part 2. When the first half of the terminal accommodating portion 4 is fitted, the seal portion 7A7B of the seal ring 6 A pair of connectors are pressed into contact with the bottom of the terminal portion 2 and the peripheral edge of the front end surface of the terminal accommodating portion 4 and are fitted together. The structure prevents water from entering the terminal fitting part of the connector housing and the terminal accommodating part. There is.

[0013] Specifically, the seal ring 6 is a ring made of rubber and fitted around the outer periphery of the retainer 10. The body has the above-mentioned fitting slot 9, and the fitting slot 9 is bottomed. The outer periphery of the seal ring is closed, and the front and rear sides of the ring body are oppositely connected to each other. A seal portion 7A7B consisting of a raised circumferential seal strip 8 is formed.

[0014] The retainer 10 is made of resin, and when fitted to the bottom of the hood part 2, the outer periphery The outer edge of the seal ring 6 fitted into the hood part 2 is loosely fitted into the inner periphery of the hood part 2 with a small gap. It has a plate-like shape, and its outer periphery is a slot for fitting the seal ring 6. 9 is formed on a flange portion 11 that fits into the flange portion 9 . Then, turn the seal ring 6 The retainer 10 fitted into the hinge part 11 is attached to the bottom of the hood part 2 in advance with the front seal part 7A. The structure is such that the male connector housing 1 is attached to the male connector housing 1 and the attached position is locked to the male connector housing 1. It has become. Note that 14 in the figure is a terminal insertion window through which the terminal passes.

[0015] Then, the female connector housing is attached to the hood part 2 to which this retainer 10 is attached. When the terminal accommodating portion 4 is fitted, the seal portion 7A in front of the seal ring 6 is attached to the hood portion 2. The seal portion 7B at the rear of the seal ring 6 is in pressure contact with the seal receiving portion 12 at the bottom of the seal ring 6. is in pressure contact with the front end surface 13 of the terminal accommodating portion 4, and this seal portion 7A7B secures the fitted state. This prevents water from entering the terminal mating area and the terminal accommodating area of the pair of connector housings. The waterproof connector of this embodiment has the above-mentioned effect. do.

[0016] Note that the fitting slot 9 and the flange portion 11 of the above embodiment are similar to each other. The size is made slightly larger than the fitting slot 9, and the flange portion 11 is made with a seal lip. It has a shape that fully reaches the back side of the seal part 7A7B of the ring 6, and the fitting of both At the same time, the seal ring 6 is expanded elastically, and the back side is expanded by the rigid flange portion 11. The reinforced seal portion 7A7B is designed to ensure stable and sufficient sealing performance. considered. Note that the means for locking the retainer 10 to the male connector housing 1 is as follows: For example, a locking protrusion 15 may be provided as appropriate on the part of the retainer 10 that fits into the male housing 1. It is provided at several locations and is locked to the corresponding side surface of the terminal accommodating portion of the male housing 1. A hole 16 is provided, and locking is achieved by fitting the holes 16 respectively.

[0017]

[Effect of the idea]

As explained above, the waterproof connector of the present invention has a waterproof seal ring installed. In addition to stabilizing the pressure and sealing performance, the seal ring is attached to the connector. There is no shape enlargement, and the stability of the sealing performance and the prevention of shape enlargement make the terminal This is achieved with a simple structure using a retainer to prevent half-insertion, so it is more effective than conventional products. It has the practical effect of being able to be implemented at low cost without increasing costs.

[Brief explanation of drawings]

[Fig. 1] Explanatory diagram of a waterproof connector according to the first embodiment of the present invention

[Fig. 2] Explanatory diagram of the seal ring and retainer of the Fig. 1 embodiment

[Figure 3] Explanatory diagram of a waterproof connector with conventional structure

[Figure 4] Explanatory diagram of the seal ring of a waterproof connector with a conventional structure

[Figure 5] Explanatory diagram of a waterproof connector with conventional structure

[Explanation of symbols]

1 Male connector housing 2 Hood part 3 Female connector housing 4 Terminal housing part 5 Male terminal 6 Seal ring 7A7B Seal part 9 Fitting slot 10 Retainer 11 Flange part 12 Seal receiving part 13 Front end surface of terminal accommodation chamber

Claims (1)

[Scope of utility model registration request] Claim 1: A terminal accommodating portion in the first half of the connector housing on one side is fitted into a concave hood portion in the first half of the connector housing on the other side, and a seal ring is interposed between the terminal accommodating portion and the hood portion. In the waterproof connector in which a separate retainer for preventing half-insertion of the terminal is attached to the mating portion and locked therein, the seal ring includes seal portions provided at the front and rear of the connector housing in the mating direction; The retainer has a bottomed fitting slot circumferentially provided from the inside of the ring body, and the retainer has a flange portion that fits into the fitting slot, and the seal ring is fitted on the outer periphery and integrated. The retainer is attached and locked to the bottom of the hood part of the connector housing on the other side, and the retainer is attached to the front end surface of the terminal accommodating part of the connector housing on the one side and the bottom of the hood part of the connector housing on the other side.
A waterproof connector characterized by a structure in which the seal portion is pressure-contacted to make it waterproof.