CN216529576U

CN216529576U - Waterproof electric connector

Info

Publication number: CN216529576U
Application number: CN202220031041.7U
Authority: CN
Inventors: 叶欲玄; 曾弘毅
Original assignee: HU LANE ASSOCIATE Inc
Current assignee: HU LANE ASSOCIATE Inc
Priority date: 2022-01-07
Filing date: 2022-01-07
Publication date: 2022-05-13
Anticipated expiration: 2032-01-07

Abstract

The utility model discloses a waterproof electric connector, which comprises a body piece, a clamping piece and a terminal piece, wherein the body piece continuously extends from the front end to the rear end to form a peripheral wall surface around the periphery wall surface to prevent liquid from flowing in and prevent water.

Description

Waterproof electric connector

Technical Field

The present invention relates to an electrical connector, and more particularly, to a waterproof electrical connector.

Background

The electric connector is a conductor device for connecting electric lines, can be used as an end point for connecting different components in a circuit system, or can be used for providing electric power and signal connection for different circuit systems and devices, and can be temporarily and conveniently plugged in and pulled out at any time through the electric connector, and can also be a permanent junction between electric devices or wires.

In a conventional electrical connector capable of being plugged and unplugged at any time, a part of the outer wall of the body is bent inwards to form a hook, and a hollow part is formed at the original position of the outer wall adjacent to the hook due to the inward bending of the outer wall, so that when a terminal is inserted into the body, the hook is pushed by the abutting protrusion of the terminal to deform the hook, and the hollow part provides a displacement space for the hook to deform.

However, when the electrical connector contacts liquid, the hollowed portion becomes a path for liquid to leak into, and the liquid is liable to leak into the body of the electrical connector, causing corrosion or affecting the electrical connection function, thereby causing damage or failure of the electrical connector.

Disclosure of Invention

The utility model aims to: the utility model provides a waterproof electric connector aiming at the defects of the prior art.

The present invention provides a waterproof electrical connector for solving the problems of the prior art, which comprises: a body member having a front inner protrusion and a rear inner protrusion, the body member continuously extending from a front end to a rear end along a central axis of the body member to surround an inner space with a peripheral wall surface closed to block a liquid from flowing into the inner space to achieve a waterproof effect, the front inner protrusion and the rear inner protrusion protruding from an inner wall surface of the body member toward the inner space in a radial direction of the body member to form a fastening member mounting part in a manner of respectively corresponding to the front end of the body member and the rear end of the body member; the clamping piece is provided with a clamping and fixing pushing sheet, the clamping and fixing pushing sheet inclines and extends towards the inner part relative to the central axis of the clamping piece, the clamping piece is arranged to enable the front end of the clamping piece to be abutted against the front inner protruding part of the body piece, and the rear end of the clamping piece is abutted against the rear inner protruding part so as to keep the clamping piece positioned in the inner space for blocking the liquid from flowing in; and a terminal member having a front outer protrusion, a rear outer protrusion and a wire connecting portion, the front outer protrusion and the rear outer protrusion protruding outward from the outer surface of the terminal member in a radial direction, the front outer protrusion corresponding to the front end of the terminal member, the wire connecting portion being located at the rear end of the terminal member for mounting a wire material, the rear outer protrusion being located between the front outer protrusion and the wire connecting portion, wherein the terminal member is configured such that the front end of the terminal member cooperates with the engaging member to abut against the front inner protrusion of the body member, and the engaging pushing piece of the engaging member abuts against the rear outer protrusion to engage the terminal member in the engaging member, thereby preventing the terminal member from moving in a direction toward the rear end of the body member and the engaging member to disengage from the engaging member.

In one embodiment of the present invention, the rear protrusion includes a front protrusion inclined surface and a rear front protrusion pushing surface, and in the process of assembling the locking member into the locking member mounting portion, the locking member is pushed from the rear end of the body member toward the front end of the body member via the rear protrusion inclined surface, the front end of the locking member abuts against the front inner protrusion of the body member, and the rear end of the locking member abuts against the rear protrusion pushing surface.

In one embodiment of the present invention, the front inner protrusion of the body member is a plurality of ribs, and the plurality of ribs are annularly arranged and spaced from each other to form on the inner wall surface of the body member.

In one embodiment of the present invention, a waterproof electrical connector is provided, wherein the body member is a straight cylinder made of waterproof material.

In one embodiment of the present invention, a waterproof electrical connector is provided, wherein the locking and pushing pieces of the locking member are a plurality of pushing pieces, and the pushing pieces are arranged in a ring shape and spaced from each other.

In one embodiment of the present invention, a waterproof electrical connector is provided, wherein a plurality of extending pieces are disposed at intervals at a rear end of the locking member, and the plurality of extending pieces are inclined outward relative to a central axis of the locking member to form a hole-expanding shape.

In one embodiment of the present invention, a waterproof electrical connector is provided, wherein the locking member is a ring-shaped terminal positioning member made of a metal material.

In one embodiment of the present invention, a waterproof electrical connector is provided, wherein a wire connecting portion of the terminal has an accommodating groove, a first clamping end and a second clamping end, the first clamping end and the second clamping end are protruded from two opposite sides of the accommodating groove, the accommodating groove is used for accommodating the wire, and the first clamping end and the second clamping end are configured to bend toward the accommodating groove after being pressed so as to support and fix the wire in the accommodating groove.

The utility model has the following effects: according to the waterproof electrical connector of the present invention, the body member extends continuously from the front end to the rear end along the central axis of the body member to surround an inner space closed by a peripheral wall surface to block the flow of liquid into the inner space. Furthermore, the clamping and pushing sheet is arranged on the clamping and pushing sheet but not arranged on the body member, so that the body member can not form a hollow part on the peripheral wall surface to provide a displacement space for the clamping and pushing sheet to deform, and the integrity of the peripheral wall surface of the body member is maintained. Therefore, according to the waterproof electric connector provided by the utility model, the waterproof effect of the electric connector can be achieved. In addition, the body piece and the clamping piece are independent components, the front end of the clamping piece is abutted against the front inner protruding part of the body piece and the rear end of the clamping piece is abutted against the rear inner protruding part through arrangement, so that the clamping piece is kept in the inner space for blocking liquid from flowing in, and rust damage or influence on an electric connection function caused by liquid leakage can be avoided.

Drawings

The foregoing and/or other advantages of the utility model will become further apparent from the following detailed description of the utility model when taken in conjunction with the accompanying drawings.

Fig. 1 is a perspective view showing a waterproof electrical connector according to an embodiment of the present invention.

Fig. 2 is an exploded view showing a waterproof electrical connector according to an embodiment of the present invention.

Fig. 3 is a side sectional view showing a body member of the waterproof electrical connector according to the embodiment of the present invention.

Fig. 4 is a side sectional view showing a card holder of the waterproof electrical connector according to the embodiment of the present invention.

Fig. 5 is a side sectional view showing a body member of a waterproof electrical connector according to an embodiment of the present invention provided with a catching piece.

Fig. 6 is a side sectional view showing that the body member of the waterproof electrical connector according to the embodiment of the present invention is provided with the catching piece and catches the terminal member together with the catching piece.

Fig. 7 is a front view showing that a body member of a waterproof electrical connector according to an embodiment of the present invention is provided with a trim member.

Detailed Description

The labels in the utility model are as follows: 100-waterproof electric connector, 1-body member, 11-front inner protrusion, 12-rear inner protrusion, 12 a-rear inner protrusion inclined surface, 12 b-rear inner protrusion pushing surface, 13-peripheral wall surface, 14-inner wall surface, 15-clamping member mounting part, 2-clamping member, 21-clamping pushing sheet, 21 a-pushing sheet, 22-extending sheet, 3-terminal member, 31-front outer protrusion, 32-rear outer protrusion, 33-lead connecting part, 330-accommodating groove, 331-first clamping end, 332-second clamping end, 34-coupling part, L1-central axis, L2-central axis, W-lead.

The following describes an embodiment of the present invention with reference to fig. 1 to 7. The description is not intended to limit the embodiments of the present invention, but is one example of the present invention.

Fig. 1 is a perspective view showing a waterproof electrical connector 100 according to an embodiment of the present invention. Fig. 2 is an exploded view showing a waterproof electrical connector 100 according to an embodiment of the present invention.

As shown in fig. 1 and 2, a waterproof electrical connector 100 according to an embodiment of the present invention includes: a body member 1, a fastening member 2 and a terminal member 3.

As shown in fig. 1 to 3, the body member 1 extends continuously from the front end (one end in the direction indicated by the arrow in the figure) to the rear end along the central axis L1 of the body member 1 to form a peripheral wall surface 13 as a closed inner space around the body member to block the liquid from flowing into the inner space and achieve the waterproof effect.

Fig. 3 is a side sectional view showing the body member 1 of the waterproof electrical connector 100 according to the embodiment of the present invention.

As shown in fig. 3, the body member 1 includes a front inner projection 11 and a rear inner projection 12.

As shown in the drawing, the front inner projecting portion 11 and the rear inner projecting portion 12 project from the inner wall surface 14 of the body member toward the inner space in the radial direction of the body member 1 in such a manner as to correspond to the front end (one end in the direction indicated by the arrow in the drawing) of the body member 1 and the rear end of the body member 1, respectively, to form a retainer mounting portion 15.

Fig. 4 is a side sectional view showing the card holder 2 of the waterproof electrical connector 100 according to the embodiment of the present invention.

As shown in fig. 2 and 4, the fixing member 2 is a straight cylinder, and the fixing member 2 includes a fixing pushing piece 21. As shown in the figure, a slit is formed from the front end to the rear end of the straight cylinder of the fastening member 2, so as to provide a space for the straight cylinder of the fastening member 2 to be pushed by the rear inner protrusion 12 and deformed in the radial direction during the process of assembling the fastening member 2 into the fastening member mounting portion 15. As shown in the figure, the locking abutting piece 21 is inclined and extended inward with respect to the central axis L2 of the locking member.

Fig. 5 is a side sectional view showing the body member 1 of the waterproof electrical connector 100 according to the embodiment of the present invention provided with the card member 2. Fig. 6 is a side sectional view showing a body member 1 of a waterproof electrical connector 100 according to an embodiment of the present invention provided with a card member 2 and card-holding a terminal member 3 together with the card member 2.

As shown in fig. 5 and 6, the fixing member 2 is disposed such that a front end (an end in a direction indicated by an arrow in the figure) of the fixing member 2 abuts against the front inner protrusion 11 of the body member, and a rear end of the fixing member 2 abuts against the rear inner protrusion 12, so as to maintain the fixing member 2 in the inner space blocking the inflow of the liquid.

As shown in fig. 2 and 6, the terminal member 3 includes a front side outer protrusion 31, a rear side outer protrusion 32, and a wire connecting portion 33.

As shown in the figure, the front side outer protrusion 31 and the rear side outer protrusion 32 are protruded outward in the radial direction from the outer surface of the terminal member 3, the front side outer protrusion 31 corresponds to the front end side of the terminal member 3 (the direction indicated by the arrow in the figure), the wire connecting portion 33 is located at the rear end side of the terminal member 3 for the wire W to be attached, and the rear side outer protrusion 32 is located between the front side outer protrusion 31 and the wire connecting portion 33.

As shown in fig. 6, the terminal element 3 is disposed such that the front outer protruding portion 31 of the terminal element 3 cooperates with the fastening element 2 to abut against the front inner protruding portion 11 of the body element 1, and the fastening pushing piece 21 of the fastening element 2 abuts against the rear outer protruding portion 32 to fasten the terminal element 3 in the fastening element 2, so as to prevent the terminal element 3 from moving toward the rear ends of the body element 1 and the fastening element 2 and separating from the fastening element 2.

According to the waterproof electrical connector 100 of the present invention, the body member 1 continuously extends from the front end to the rear end along the central axis L1 of the body member 1 to form a peripheral wall 13 as a closed inner space to block the liquid from flowing into the inner space, the locking member 2 is disposed to make the front end of the locking member 2 abut against the front inner protrusion 11 of the body member 1 and make the rear end of the locking member 2 abut against the rear inner protrusion 12, so as to keep the locking member 2 in the inner space to block the liquid from flowing in, thereby achieving the waterproof effect.

As shown in fig. 3, 5 and 6, the rear inner protrusion 12 of the body member 1 includes a rear inner protrusion inclined surface 12a and a rear inner protrusion abutting surface 12 b.

In the process of assembling the locking member 2 into the locking member mounting portion 15, the locking member 2 enters from the rear end of the body member 1 through the rear inner protrusion inclined surface 12a toward the front end of the body member 1, the front end of the locking member 2 abuts against the front inner protrusion 11 of the body member 1, and the rear end of the locking member 2 abuts against the rear inner protrusion pushing surface 12 b.

In this embodiment, each of the front inner protrusion 11 and the rear inner protrusion 12 of the body member 1 may be a plurality of ribs, as shown in fig. 7, which are annularly arranged and spaced apart from each other to be formed on the inner wall surface of the body member 1. Of course, the present invention is not limited thereto, and the front inner protrusion 11 and the rear inner protrusion 12 may be a single annular protrusion.

In this embodiment, the body member 1 is a straight cylinder made of a waterproof material. In particular, the body member 1 is a straight cylinder made of plastic. Of course, the utility model is not limited thereto, and any material that can be waterproof can be used to construct the body member.

As shown in fig. 4, the fastening and pushing-against piece 21 of the fastening member 2 is a plurality of pushing-against pieces 21a, and as shown in fig. 7, the pushing-against pieces 21a are arranged in a ring shape and spaced from each other.

As shown in fig. 7, in the present embodiment, when the engaging member 2 is configured to be mounted on the engaging member mounting portion 15, the plurality of ribs and the plurality of abutting pieces 21a are arranged in a staggered manner as viewed from the front end of the waterproof electrical connector 100. Of course, the utility model is not limited thereto, and the plurality of ribs and the plurality of abutting pieces 21a may be arranged in an overlapping manner when viewed from the front end of the waterproof electrical connector 100.

As shown in fig. 4, the rear end of the fastening member 2 has a plurality of extending pieces 22 arranged at intervals, and the plurality of extending pieces 22 are inclined outward relative to the central axis L2 of the fastening member to be in a hole-expanding shape, during the process of assembling the fastening member 2 into the fastening member mounting portion 15, the plurality of extending pieces 22 are abutted by the rear inner protruding portion 12, specifically, the plurality of extending pieces 22 are abutted by the rear inner protruding inclined surface 12a of the rear inner protruding portion 12, and the plurality of extending pieces 22 are deformed by inward contraction, when the fastening member 2 enters the fastening member mounting portion 15, the plurality of extending pieces 22 return to the original hole-expanding shape to abut against the rear inner protruding portion 12, specifically, the plurality of extending pieces 22 return to the original hole-expanding shape to abut against the rear inner protruding abutting surface 12 b.

In this embodiment, the engaging member 2 is a ring-shaped terminal positioning member made of a metal material. Of course, the utility model is not limited thereto, and the fastening member may be made of any material as long as the terminal member can be firmly fastened in the body member.

As shown in fig. 2 and 6, the wire connecting portion 33 of the terminal element 3 has a receiving groove 330, a first clamping end 331 and a second clamping end 332.

As shown in fig. 2, the first clamping end 331 and the second clamping end 332 are formed protruding from two opposite sides of the accommodating cavity 330, and the accommodating cavity 330 is provided for accommodating the wire W.

As shown in fig. 6, the first clamping end 331 and the second clamping end 332 are configured to bend toward the accommodating cavity 330 after being pressed, so as to fix the conductive wire W in the accommodating cavity 330.

According to the waterproof electrical connector 100 of the present invention, the body member 1 extends continuously from the front end to the rear end along the central axis L1 of the body member 1 to form an inner space enclosed by a peripheral wall surface 13 to block the flow of liquid into the inner space. Furthermore, the fastening and abutting piece 21 is disposed on the fastening and abutting piece 2 but not on the body member 1, so that the body member 1 does not have a hollow portion formed on the peripheral wall surface 13 to provide a displacement space for the fastening and abutting piece 21 to deform, thereby maintaining the integrity of the peripheral wall surface 13 of the body member 1. Therefore, according to the waterproof electrical connector 100 of the present invention, the waterproof effect of the electrical connector can be achieved. In addition, the body member 1 and the fastening member 2 are independent members, and are configured to enable the front end of the fastening member 2 to abut against the front inner protruding portion 11 of the body member 1 and the rear end of the fastening member 2 to abut against the rear inner protruding portion 12, so as to maintain the fastening member 2 in the inner space for blocking liquid from flowing in, thereby preventing corrosion or influence on the electrical connection function caused by liquid leakage.

While the foregoing description and description are of the preferred embodiment of the present invention, other modifications of the utility model shall be apparent to those skilled in the art from the following claims and their equivalents, and it is intended that such modifications shall fall within the scope of the appended claims.

Claims

1. A waterproof electrical connector, comprising:

a body member having a front inner protrusion and a rear inner protrusion, the body member continuously extending from a front end to a rear end along a central axis of the body member to surround and form an inner space with a peripheral wall surface being closed, the front inner protrusion and the rear inner protrusion protruding from an inner wall surface of the body member in a radial direction of the body member in a manner of respectively corresponding to the front end of the body member and the rear end of the body member toward the inner space to form a retainer mounting portion;

the clamping piece is provided with a clamping and fixing pushing sheet, the clamping and fixing pushing sheet inclines and extends towards the inner part relative to the central axis of the clamping piece, the clamping piece is arranged to enable the front end of the clamping piece to be abutted against the front inner protruding part of the body piece, and the rear end of the clamping piece is abutted against the rear inner protruding part; and

a terminal element having a front outer protrusion, a rear outer protrusion and a wire connection portion, the front outer protrusion and the rear outer protrusion protrude outward from the outer surface of the terminal element in the radial direction, the front outer protrusion corresponds to the front end of the terminal element, the wire connection portion is located at the rear end of the terminal element, the rear outer protrusion is located between the front outer protrusion and the wire connection portion, wherein the terminal element is configured to enable the front end of the terminal element to abut against the front inner protrusion of the body element together with the locking element, and the locking and pushing sheet of the locking element abuts against the rear outer protrusion to lock the terminal element in the locking element, so as to prevent the terminal element from moving in the direction of the rear end of the body element and the locking element and separating from the locking element.

2. The waterproof electrical connector as claimed in claim 1, wherein the rear protrusion includes a front protrusion inclined surface and a rear front protrusion abutting surface, and in the process of assembling the locking member into the locking member mounting portion, the locking member is pushed from the rear end of the body member toward the front end of the body member via the rear protrusion inclined surface, the front end of the locking member abuts against the front inner protrusion of the body member, and the rear end of the locking member abuts against the rear protrusion abutting surface.

3. The waterproof electrical connector as claimed in claim 1, wherein the front inner protrusion and the rear inner protrusion of the body member are each a plurality of ribs arranged in a ring-like arrangement and spaced apart from each other to be formed on an inner wall surface of the body member.

4. The waterproof electrical connector of claim 1, wherein the body member is a straight barrel made of waterproof material.

5. The waterproof electrical connector as claimed in claim 1, wherein the retaining and pushing pieces of the retaining member are a plurality of pushing pieces, and the plurality of pushing pieces are arranged in a ring shape and spaced from each other.

6. The waterproof electrical connector according to claim 1, wherein the rear end of the engaging member has a plurality of extending pieces arranged at intervals, and the plurality of extending pieces are inclined outward with respect to the central axis of the engaging member to be in a hole-enlarged shape, and in a process of assembling the engaging member into the engaging member mounting portion, the plurality of extending pieces are pushed against the rear inner protrusion portion to be deformed by being inwardly contracted, and when the engaging member enters the engaging member mounting portion, the plurality of extending pieces are restored to the original hole-enlarged shape to be pushed against the rear inner protrusion portion.

7. The waterproof electrical connector according to claim 1, wherein the engaging member is a ring-shaped terminal positioning member made of a metal material.

8. The waterproof electrical connector of claim 1, wherein the wire connecting portion of the terminal has a receiving groove, a first clamping end and a second clamping end, the first clamping end and the second clamping end are formed protruding from two opposite sides of the receiving groove, the receiving groove is used for accommodating the wire, and the first clamping end and the second clamping end are configured to bend toward the receiving groove after being pressed so as to fix the wire in the receiving groove.