CN209607987U - A waterproof structure for a connector - Google Patents

Abstract

The utility model relates to a waterproof structure for a connector, which includes a sealing ring for fixing cable wires and a fixing nut for cooperating with the sealing ring. The sealing ring is provided with several elastic contraction claws. The waterproof structure also includes The elastic waterproof platform is arranged in a hollow structure, and a limiting boss is arranged on the inner wall of the sealing ring and below the elastic contraction claws. Cavity, the elastic waterproof platform is installed in the storage cavity, the inner wall ring of the elastic waterproof platform is provided with at least one first elastic convex strip, the first elastic convex strip is cut with several connecting sections, when the cable conductor is fixed, the connecting section It can be tightly pressed with the cable conductor. Compared with the prior art, the first elastic convex strip in the elastic waterproof platform of the utility model is cut into several connecting sections, which can expand the degree of elastic deformation and make the connecting section more tightly Contact with cables and wires to improve waterproof effect.

Description

A waterproof structure for a connector

technical field

The utility model relates to the technical field of power connectors, in particular to a waterproof structure for connectors.

Background technique

At present, the male and female connectors of industrial and civil power connectors are metal contact types, which are mainly used for power access of various electrical equipment. When the male connector is inserted into the female connector, the metal of the male connector will The contact body is in contact with the metal contact body of the charged connector female seat, so that the side of the connector male seat is energized, and the current transmission is completed. The existing connector male seat generally includes a plastic shell, an insulating core and a cable wire, the cable wire is riveted with a conductive terminal, the insulating core is installed in the plastic shell, and the insulating core is provided with an installation cavity for fixing the conductive terminal , the cable wires are penetrated from the rear end of the plastic shell, and the cable wires are connected to the insulating core through conductive terminals. In the prior art, there is also an AC-DC switchable waterproof connector disclosed in the Chinese invention patent application specification CN109244717A. It includes a female end connector and a male end connector, a sealing ring is provided at the other end of the first housing of the female end connector away from the male end connector, and the end of the first housing away from the male end connector is provided with threads and The nut that fits with the thread, the sealing ring ring of the patent application is provided with several elastic contraction claws, and the several elastic contraction claws can be contracted under force when mated with the nut, so as to fix the cable conductor, but the sealing ring only serves as a seal The function of fixation cannot prevent water vapor from entering the connector male seat from the junction of the cable wire and the plastic shell, and the waterproof performance is poor. In a humid environment, it is easy to cause damage to the connector or even a safety accident.

Utility model content

In order to solve the above problems, the utility model provides a waterproof structure for connectors, which is easy to assemble and has better waterproof effect.

In order to solve the above object, the utility model adopts the following technical solutions.

A waterproof structure for a connector, including a sealing ring for fixing cable wires and a fixing nut for cooperating with the sealing ring, the sealing ring is provided with several elastic contraction claws, and also includes an elastic waterproof structure arranged in a hollow structure. platform, a limit boss is set on the inner wall of the sealing ring and the position below the elastic contraction claw, the limit boss and several elastic contraction claws form a storage cavity for accommodating the elastic waterproof platform, and the elastic waterproof platform is installed In the accommodating cavity, at least one first elastic protruding strip is provided on the inner wall of the elastic waterproof platform. The first elastic protruding strip is cut with several connecting sections. When the cable conductor is fixed, the connecting section can be tightly pressed against the cable conductor .

Preferably, the connecting section is inclined to the inner wall surface of the sealing ring.

Preferably, the outer wall ring of the elastic waterproof platform is provided with at least one second elastic raised strip, and the second elastic raised strip can be tightly pressed against the inner wall of the sealing ring.

Preferably, the limiting boss is provided with a convex rib at the contact position with the elastic waterproof platform, and the convex rib abuts against the bottom of the elastic waterproof platform.

Preferably, the elastic waterproof platform is mainly made of silicone material by integral injection molding.

The beneficial effects of the utility model are as follows:

Compared with the prior art, the utility model adds an elastic waterproof platform, and the first elastic convex strip in the elastic waterproof platform is cut into several connecting sections, which can expand the degree of elastic deformation, so that the connecting section can be more closely connected with the cable The electric wire contacts to improve the waterproof effect. When assembling, you only need to install the elastic waterproof platform in the sealing ring, which is convenient for assembly. When the fixing nut cooperates with the sealing ring, the elastic contraction claws on the sealing ring will be stressed. Shrink and press outside the elastic waterproof platform, due to the elastic effect of the elastic waterproof platform, the elastic waterproof platform is deformed by force and the connecting section of the elastic waterproof platform is tightly pressed against the cable conductor, so that water vapor is not easy to escape from the combination of the cable conductor and the plastic shell. The place enters the male seat of the connector, and the waterproof effect is better.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model;

Fig. 2 is the three-dimensional structure schematic diagram of the elastic waterproof platform of the present utility model;

Fig. 3 is a schematic diagram of the three-dimensional structure of the elastic waterproof platform of the present invention.

Explanation of reference signs: 1. sealing ring, 11. elastic contraction claw, 12. limit boss, 121. convex rib, 13. accommodation cavity, 2. fixed nut, 3. elastic waterproof platform, 31. first elastic convex Bar, 311. connecting segment, 32. second elastic raised strip.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings.

Referring to Figures 1 to 3, a waterproof structure for connectors, including a sealing ring 1 for fixing cable conductors and a fixing nut 2 for cooperating with the sealing ring 1, the sealing ring 1 ring is provided with several elastic shrinkage The claw 11, the waterproof structure of this embodiment also includes an elastic waterproof platform 3 arranged in a hollow structure, and a limit boss 12 is set on the inner wall of the sealing ring 1 and below the elastic contraction claw 11, and the limit boss 12 and a plurality of elastic contraction claws 11 form a storage cavity 13 for accommodating the elastic waterproof platform 3, the elastic waterproof platform 3 is installed in the storage cavity 13, and the inner wall ring of the elastic waterproof platform 3 is provided with at least one first elastic convex strip 31. The first elastic convex strip 31 is cut with several connecting sections 311. When the cable conductor is fixed, the connecting section 311 can be tightly pressed against the cable conductor. Compared with the prior art, the utility model adds an elastic waterproof platform 3 , and the first elastic convex strip 31 in the elastic waterproof platform 3 is cut into several connecting sections 311, which can expand the degree of elastic deformation, so that the connecting sections 311 can be more closely in contact with the cables and wires, and improve the waterproof effect. When assembling, only The elastic waterproof platform 3 needs to be installed in the sealing ring 1, which is convenient for assembly. When the fixing nut 2 cooperates with the sealing ring 1, the elastic contraction claw 11 on the sealing ring 1 is shrunk under force and pressed against the sealing ring 1. Outside the elastic waterproof platform 3, due to the elastic effect of the elastic waterproof platform 3, the elastic waterproof platform 3 is deformed by force and the connecting section 311 of the inner wall of the elastic waterproof platform 3 is tightly pressed against the cable conductor, and the sealing ring 1 is closely connected to the elastic waterproof platform 3 connection, and the cable conductor is also tightly connected with the elastic waterproof platform 3, water vapor is not easy to enter the connector male seat from the joint of the cable conductor and the plastic shell, and the waterproof effect is better. The connecting section 311 of the present embodiment is inclined to the The surface of the inner wall of the sealing ring 1, so that the adjacent connecting sections 311 can be pressed against each other, which is conducive to deformation and strong waterproof.

Referring to Fig. 3, the outer wall ring of the elastic waterproof platform 3 in this embodiment is provided with at least one second elastic convex strip 32, and the second elastic convex strip 32 can be tightly pressed against the inner wall of the sealing ring 1, thus further improving the waterproof effect, It is more water resistant.

With reference to Fig. 2, described position-limiting boss 12 is provided with convex rib 121 in the contact position ring with elastic waterproof platform 3, and described convex rib 121 abuts with the bottom of elastic waterproof platform 3, so, when abutting, due to elastic waterproof platform 3, the elastic waterproof platform 3 forms an arc-shaped surface at the position of the convex rib 121, which expands the contact area, further blocks the entry of water vapor, and improves the waterproof performance. The elastic waterproof platform 3 of this embodiment is mainly made of silicone material by integral injection molding, and has good elasticity.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (5)

1. A waterproof structure for a connector, comprising a sealing ring for fixing the cable conductor and a fixing nut for cooperating with the sealing ring, the sealing ring is provided with several elastic contraction claws, and it is characterized in that: it also includes a The elastic waterproof platform set in a hollow structure, the inner wall of the sealing ring and the position below the elastic contraction claws are provided with a limit boss, and the limit boss and several elastic contraction claws form a storage cavity for accommodating the elastic waterproof platform , the elastic waterproof platform is installed in the storage cavity, the inner wall of the elastic waterproof platform is provided with at least one first elastic raised strip, and the first elastic raised strip is cut with several connecting sections. Press tightly with the cable wires. 2 . The waterproof structure for connectors according to claim 1 , wherein the connecting section is inclined to the inner wall surface of the sealing ring. 3 . 3. A waterproof structure for connectors according to claim 1, characterized in that: the outer wall of the elastic waterproof platform is provided with at least one second elastic convex strip, and the second elastic convex strip can be tightly pressed against the inner wall of the sealing ring paste. 4. A waterproof structure for a connector according to claim 1, characterized in that: said limiting boss is provided with a convex rib at the contact position with the elastic waterproof platform, and said convex rib is in contact with the bottom of the elastic waterproof platform. catch. 5. The waterproof structure for connectors according to claim 1, wherein the elastic waterproof platform is mainly made of silicone material by integral injection molding.