TWI695555B - Electrical connector - Google Patents

Abstract

Disclosed is an electrical connector which includes a body, a terminal engaging portion and a sealing ring. The body has a space. The terminal engaging portion convexly disposes at the space, and has a wall body and a terminal recess, wherein the wall body covers at least a portion of the terminal recess, and the outer surface of the wall body is provided with a groove. The sealing ring surrounds and covers the outer surface of the wall body through the inner surface of the space and the outer surface of the wall body, and the inner surface of the sealing ring surrounds and covers the outer surface of the wall body in contact with the groove of the outer surface of the wall body so as to improve the stability of the engagement between the sealing ring and the wall body.

Description

Electrical connector

The invention relates to an electrical connector, in particular to a joint structure of a terminal joint part of an electrical connector. The joint structure is used to connect the terminal joint part and the rubber ring.

When inserting a corresponding connector into a terminal engaging portion of an electrical connector, it is necessary to increase the tightness and air density between the corresponding connector and the terminal engaging portion, so the outer surface of the terminal engaging portion There will be a rubber ring.

However, since the apron of the electrical connector is simply sleeved on the outer surface of the terminal junction, when the electrical connector is used in an engine room or similar high-temperature, high-pressure environment, the electrical connector may The difference between the internal pressure and the ambient pressure causes the displacement of the aprons, which in turn affects the tightness and gas density between the corresponding connector and the terminal junction. Accordingly, it is necessary to improve the joint structure between the conventional rubber ring and the terminal joint.

Therefore, the object of the present invention is to provide an electrical connector to improve the stability of the joint between the aprons and the terminal joints and enhance the airtightness formed by the aprons.

The technical means adopted by the present invention to solve the problems of the conventional technology is to provide an electrical connector, which includes: a body with an accommodating space, and opposite ends of the body are respectively formed into a corresponding connector insertion end and a bottom End, the insertion end of the corresponding connector is in communication with the accommodating space; a terminal engaging portion is protruded in the accommodating space, the terminal engaging portion has a wall body and a terminal groove, the wall system covers the At least a part of the terminal groove, the outer surface of the wall body is provided with a groove; and a sealing ring is placed around the wall through the inner surface of the accommodating space and the outer surface of the wall body The outer surface of the body, and the inner surface of the sealing ring is wrapped around the wall in a manner of contacting the groove of the outer surface of the wall, or the inner surface of the sealing ring is in contact with the recess of the wall The wall portion between the groove and the bottom end surrounds the wall body in a manner.

In an electrical connector according to an embodiment of the present invention, the groove loop is provided on the outer surface of the wall body.

In an electrical connector of an embodiment of the present invention, the groove has an inner wall surface and an outer wall surface, and the normal angle of the inner wall surface relative to the normal of the outer surface of the wall body is greater than that of the outer wall surface relative to the The normal angle of the normal to the outer surface of the wall.

In an electrical connector of an embodiment of the present invention, the accommodating space is provided with a positioning concave body to engage with a positioning convex body of a corresponding connector inserted in the accommodating space for positioning.

In an electrical connector according to an embodiment of the present invention, the groove loop is provided on a part of the outer surface of the wall body.

In an electrical connector of an embodiment of the present invention, the terminal groove is provided with an abutting portion, and the abutting portion is abutted against a terminal provided in the terminal engaging portion.

In one embodiment of the present invention, the electrical connector further includes a buckle fixing member, which is disposed outside the terminal engaging portion at a distance to insert a corresponding connector on the outer surface of the sealing ring To buckle the corresponding connector.

In an electrical connector according to an embodiment of the present invention, the buckle fixing member is coupled to the body in a displaceable manner by pressing.

Through the technical means adopted by the present invention, since the seal ring is caught in the groove, the engagement with the terminal joint portion is more stable, the displacement of the seal ring relative to the terminal joint portion is restricted, and the seal ring is prevented from contacting the terminal due to the internal and external pressure difference. There is a gap between the joints, which improves the airtightness of the sealing ring after installation. Preferably, the normal angle of the inner wall surface with respect to the normal of the outer surface of the wall is greater than the normal angle of the outer wall surface with respect to the normal of the outer surface of the wall and the angle formed in the groove allows part of the seal ring The trapped inside further provides stability of the joint between the seal ring and the terminal joint portion, so that the displacement of the seal ring relative to the terminal joint portion is restricted, and the maintenance of the airtightness formed by the seal ring installed on the terminal joint portion is ensured.

The embodiments of the present invention will be described below based on FIGS. 1 to 6. This description is not intended to limit the embodiments of the present invention, but is one of the examples of the present invention.

As shown in FIGS. 1 to 4, an electrical connector 100 according to an embodiment of the present invention includes a body 1, a terminal engaging portion 2 and a sealing ring 3.

As shown in FIGS. 1 and 2, the body 1 has an accommodating space 11, and the opposite ends of the body 1 are respectively formed as a corresponding connector insertion end 12 and a bottom end 13, the corresponding connector insertion end The 12 series is in communication with the accommodating space 11. The terminal engaging portion 2 is projected into the accommodating space 11. The terminal engaging portion 2 has a wall 21 and a terminal groove 22. In other words, in the embodiment of the present invention, the accommodating space 11 is formed in a recess at the center of the body 1, and the terminal engaging portion 2 is directed from the accommodating space 11 toward the corresponding connector insertion end 12 of the body 1 And the protrusion is formed.

As shown in FIGS. 1 and 2, the wall 21 covers a part of the terminal groove 22, and a groove 211 is provided on the outer surface of the wall 21. In detail, the groove 211 is formed on the outer surface of the wall body 21 by being circumferentially recessed in a circle. Of course, the invention is not limited to this. In other embodiments, the groove 211 may only surround a portion of the outer surface of the wall 21. The terminal groove 22 is provided with an abutting portion 221. The abutting portion 221 is for abutting a terminal disposed in the terminal engaging portion 2.

In detail, the sealing ring 3 is an elastic ring-shaped body. As shown in FIGS. 1 and 2, the sealing ring 3 passes through the inner surface of the accommodating space 11 and the outer surface of the wall 21, The ring cover is placed on the outer surface of the wall body 21, and the inner surface of the sealing ring 3 surrounds the wall body 21 in a manner to contact the groove 211 of the outer surface of the wall body 21. In other embodiments, the entire inner surface of the sealing ring 3 surrounds the wall 21 in such a way as to contact the portion of the wall 21 between the groove 211 of the wall 21 and the bottom end 13; That is, the entire inner surface of the sealing ring 3 does not contact the groove 211 of the wall 21, and the sealing ring 3 is closer to the bottom than the corresponding connector insertion end 12 with the groove 211 as the center端13。 13. When the sealing ring 3 is moved toward the corresponding connector insertion end 12 by a pressure difference and moves to the position of the groove 211 of the wall 21, at least a part of the sealing ring 3 can be placed in the groove 211 by snapping To be limited to this.

In detail, as shown in FIGS. 3 and 4, the groove 211 has an inner wall surface 211a and an outer wall surface 211b. The inner wall surface 211a and the outer wall surface 211b form a hook angle A. Furthermore, the inner wall surface 211a forms a normal angle θ with respect to the normal n1 of the outer surface of the wall 21, and the normal angle of the outer wall surface 211b with respect to the normal n2 of the outer surface of the wall 21 is 0 degrees. In the embodiment of the present invention, the normal angle θ is greater than the normal angle of the outer wall surface 211b (that is, 0 degrees), and the tip of the hook angle A is disposed outward (that is, toward the body 1 Opening). When the terminal engaging portion 2 and a corresponding connector are disengaged from each other, causing the sealing ring 3 to be pulled and displaced outward, a specific direction through the tip of the hook angle A and part of the sealing ring 3 is caught in the hook The angle A enables the joint between the sealing ring 3 and the terminal joint 2 to be further stabilized, avoiding excessive displacement of the sealing ring 3, and thereby maintaining the sealing ring 3 in the electrical connector 100 The airtightness formed.

Preferably, as shown in FIG. 2 and FIG. 5, the electrical connector 100 further includes a buckle fixing member 4, which is disposed outside the terminal engaging portion 2 at a distance to provide a corresponding connection When the connector B is inserted on the outer surface of the sealing ring 3, a limiting block B1 of the corresponding connector B is snapped to secure the engagement of the corresponding connector B and the electrical connector 100. In detail, in this embodiment, the buckle fixing member 4 is coupled to the body 1 in a displaceable manner by pressing.

As shown in FIG. 6, an electrical connector 100a according to another embodiment of the present invention has substantially the same structure as the electrical connector 100, except that the accommodating space 11 of the electrical connector 100a is provided with a The positioning concave body 111 is used for engaging with a positioning convex body of a corresponding connector inserted in the accommodating space 11 for positioning.

The above description and description are only for the description of the preferred embodiments of the present invention. Those with ordinary knowledge of this technology can make other modifications based on the scope of the patent application defined below and the above description, but these modifications should still be It is within the scope of the rights of the invention for the spirit of the invention.

100, 100a: electrical connector 1: Ontology 11: accommodating space 111: positioning concave body 12: corresponding connector insertion end 13: bottom 2: terminal junction 21: Wall 211: Groove 211a: inner wall surface 211b: outer wall surface 22: Terminal slot 221: Reach 3: Sealing ring 4: snap fastener A: hook angle B: corresponding connector B1: limit block n1, n2: normal θ: normal angle

Figure 1 is a schematic plan view of an electrical connector according to an embodiment of the present invention; Figure 2 is a three-dimensional exploded schematic view of the electrical connector according to an embodiment of the present invention; Figure 3 is an implementation of the present invention A schematic cross-sectional view of an example electrical connector; FIG. 4 is an enlarged schematic view showing a groove of an electrical connector according to an embodiment of the present invention; FIG. 5 is a schematic view showing an electrical connector and an electrical connector according to an embodiment of the present invention; Corresponding schematic diagram of connector engagement; FIG. 6 is a schematic plan view showing an electrical connector according to another embodiment of the present invention.

no

100: electrical connector

1: Ontology

11: accommodating space

2: terminal junction

21: Wall

22: Terminal slot

221: Reach

3: Sealing ring

Claims (7)

An electrical connector includes: a body having an accommodating space, opposite ends of the body are respectively formed as a corresponding connector insertion end and a bottom end, the corresponding connector insertion end is connected to the accommodation space Through; a terminal engaging portion is an integrally formed member and the terminal engaging portion is formed in the housing space and the body in an integrally formed manner, the terminal engaging portion has a wall body and a terminal groove, the wall The system covers at least a part of the terminal groove, the outer surface of the wall body is provided with a groove; and a sealing ring is formed integrally with the body in the receiving space of the terminal joint in the accommodating space, The sealing ring passes through the accommodating space between the inner surface of the body and the outer surface of the wall body, and the outer ring is sheathed on the outer surface of the wall body, and the inner surface of the sealing ring is in contact with the wall body The outer surface surrounds the wall by a groove, or the inner surface of the seal ring surrounds the wall by contacting the wall portion between the groove of the wall and the bottom end Wall body, wherein the groove has an inner wall surface and an outer wall surface, and the normal angle of the inner wall surface relative to the normal of the outer surface of the wall body is greater than that of the outer wall surface relative to the normal of the outer surface of the wall body French corner. The electrical connector according to claim 1, wherein the groove loop is provided on the outer surface of the wall body. The electrical connector according to claim 1, wherein the accommodating space is provided with a positioning concave body to engage with a positioning convex body of a corresponding connector inserted in the accommodating space for positioning. The electrical connector according to claim 1, wherein the groove is looped on a part of the outer surface of the wall body. The electrical connector according to claim 1, wherein the terminal groove is provided with an abutting portion, and the abutting portion is configured to abut against a terminal provided in the terminal engaging portion. The electrical connector according to claim 1, further comprising a snap fastener, which is disposed at an outer distance from the terminal engaging portion at a spacing distance, so that when a corresponding connector is inserted on the outer surface of the sealing ring, Snap the corresponding connector. The electrical connector according to claim 6, wherein the buckle fixing member is combined with the body in a displaceable manner by pressing.

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