CN220306552U - Terminal assembly and electric connector - Google Patents

Abstract

The present application relates to a terminal assembly and an electrical connector. The terminal assembly comprises a terminal body and a clamp spring, wherein the terminal body is provided with a containing groove, the clamp spring is fixed in the containing groove, the clamp spring is provided with a plug groove for plugging the plug terminal, the clamp spring is provided with a plurality of elastic contact pieces which extend along the plug direction and arch towards the inside of the plug groove, and the inner wall of the containing groove is provided with supporting protrusions protruding towards the arched elastic contact pieces. The electric connector adopting the terminal assembly can support the elastic contact through the supporting protrusions when the elastic contact is tired and deformed after long-time use, ensure that the elastic contact is always in stable contact with the opposite-plug terminal, and improve the current stability of the electric connector.

Description

Terminal assembly and electric connector

Technical Field

The present application relates to electrical connectors, and more particularly, to a terminal assembly and an electrical connector employing the same.

Background

The use of high current electrical connectors capable of carrying currents in excess of 100 amperes (100A) is required in new energy automobiles. Therefore, the existing electrical connector mostly adopts a reed-type female terminal with multiple contact points to be inserted into a flat sheet-shaped male terminal, and the multiple contact points increase the contact area with the male terminal, thereby improving the overcurrent capability. However, long-term use can cause fatigue deformation of the spring plate, so that poor contact of the contact points is caused, and the stability of current transmission is affected.

Disclosure of Invention

The technical problem to be solved by the present application is to provide a terminal assembly capable of enhancing current stability and an electrical connector employing the same, aiming at the above-mentioned defects of the prior art.

The technical scheme that this application adopted in first aspect for solving its technical problem is: the utility model provides a terminal assembly, including terminal body and jump ring, the terminal body is equipped with the accommodation groove, the jump ring is fixed in the accommodation groove, the jump ring is formed with the grafting groove that supplies to inserting the terminal grafting, wherein, the jump ring is equipped with a plurality of elasticity contact pieces that extend along the grafting direction and arch in the grafting groove, the inner wall in accommodation groove is equipped with the protruding supporting bulge that stretches towards the elasticity contact piece of arch.

According to one embodiment of the terminal assembly of the first aspect of the application, the terminal body is provided with a plugging portion positioned at one end in the plugging direction and a wiring portion positioned at the other end and used for connecting wires, and a containing groove which is communicated with two ends in the plugging direction and is sealed around is formed in the plugging portion.

According to one embodiment of the terminal assembly of the first aspect of the application, the clamping spring is surrounded by an upper reed, a lower reed and a connecting part, wherein the upper reed and the lower reed are arranged at intervals up and down, and the connecting part is connected to one side corresponding to the upper reed and the lower reed, so that a U-shaped inserting groove penetrating through two ends of the upper reed and the lower reed along the inserting direction is formed.

In one embodiment of the terminal assembly according to the first aspect of the present application, the upper spring plate and the lower spring plate are each provided with a plurality of elastic contact pieces extending in the plugging direction and arching into the plugging grooves.

In one embodiment of the terminal assembly according to the first aspect of the present application, the plurality of resilient contacts of the upper and lower leaves are opposite to or staggered with respect to each other.

In one embodiment of the terminal assembly according to the first aspect of the present application, each of the elastic contact pieces is arched to have an arc shape, and both ends are connected to the upper leaf spring or the lower leaf spring.

In an embodiment of the terminal assembly according to the first aspect of the present application, the upper and lower inner walls of the accommodating groove are provided with supporting protrusions protruding toward the arched elastic contact piece.

In one embodiment of the terminal assembly according to the first aspect of the present application, the supporting protrusions comprise one or more supporting protrusions extending in the arrangement direction of the plurality of elastic contact pieces.

In one embodiment of the terminal assembly according to the first aspect of the present application, the ends of one end of the upper reed and the lower reed in the plugging direction are bent to form a flanging to be snapped into a first snap groove formed at the end of the corresponding end of the plugging portion; the other ends of the upper reed and the lower reed in the inserting direction form a clamping piece which is outwards turned towards one end and is clamped into a second clamping groove formed in the other end of the inserting portion.

The technical scheme adopted in the second aspect for solving the technical problem is as follows: an electrical connector is provided that includes a terminal assembly as previously described.

The terminal assembly and the electric connector have the following beneficial effects: according to the terminal assembly, the supporting protrusions protruding towards the arched elastic contact pieces of the clamp springs are arranged on the inner wall of the accommodating groove, so that the elastic contact pieces can be supported when the elastic contact pieces are deformed due to fatigue after long-time use, the elastic contact pieces are ensured to be always in stable contact with the opposite-plug terminals, and the current stability of the electric connector is improved.

Drawings

The application will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic view of a terminal assembly according to one embodiment of the present application mated with an opposing terminal;

FIG. 2 is a schematic view of the terminal assembly of FIG. 1 at another angle;

fig. 3 is a schematic end view of the plug portion of the terminal body shown in fig. 1;

FIG. 4 is a schematic structural view of a snap spring in one embodiment of the present application;

fig. 5 is a schematic diagram of an end face structure of the snap spring shown in fig. 4 in the plugging direction;

FIG. 6 is a schematic side view of the snap spring of FIG. 4;

fig. 7 is a cross-sectional view showing a structure in which a clip spring of the terminal assembly shown in fig. 1 is caught in a socket portion of a terminal body.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application. Moreover, embodiments and features of embodiments in this application may be combined with each other without conflict.

Fig. 1 shows a schematic structural view of a terminal assembly 100 according to an embodiment of the present application mated with an opposite terminal 200, and fig. 2 shows a schematic structural view of another angle of the terminal assembly 100 shown in fig. 1. As shown in fig. 1 and 2, the terminal assembly 100 includes a terminal body 110 and a clip spring 120, the terminal body 110 having a plug portion 111 and a wire portion 112, the plug portion 111 being located at one end of the terminal body 110 in the plug-in direction, the wire portion 112 being located at the other end of the terminal body 110 in the plug-in direction. The connection portion 112 of the terminal body 110 is used for connecting wires, and its structure is realized in the prior art, and will not be described in detail in this application. The insertion portion 111 of the terminal body 110 has a receiving groove 1111 (see fig. 3) formed therein, which is penetrated at both ends in the insertion direction and has a closed periphery, for fixedly mounting the clip spring 120 for inserting the insertion terminal 200. The opposite terminals 200 are flat and sheet-like with opposite upper and lower surfaces 201, 202.

As further shown in fig. 4, 5 and 6, the clip spring 120 is surrounded by upper and lower spring pieces 121 and 122 arranged at an upper and lower interval and a connecting portion 123 connected to the corresponding sides of the upper and lower spring pieces 121 and 122 to form a U-shaped insertion groove 124 penetrating through both ends in the insertion direction. The upper spring plate 121 is provided with a plurality of elastic contact pieces 127a extending along the plugging direction and arched towards the inside of the plugging slot 124, the lower spring plate 122 is also provided with a plurality of elastic contact pieces 127b extending along the plugging direction and arched towards the inside of the plugging slot 124, the respective plurality of elastic contact pieces 127a and 127b of the upper spring plate 121 and the lower spring plate 122 are arranged opposite to each other, a plurality of contact points 128a128b are respectively formed to contact with the upper surface 201 and the lower surface 202 of the opposite plug terminal 200 inserted into the plugging slot 124, so that the contact area with the opposite plug terminal 200 is increased, and the overcurrent capacity is improved. According to various embodiments of the present application, the plurality of elastic contacts 127a and 127b of the upper reed 121 and the lower reed 122 can be alternatively arranged, and the same function can be achieved. As shown in fig. 4 to 6, the plurality of elastic contacts 127a and 127b of the upper reed 121 and the lower reed 122 may be integrally formed on the reed 120 by a blanking process, each of the elastic contacts 127a and 127b arches in an arc shape, and the arc bottom forms contact points 128a and 128b, both ends of which are connected to the upper reed 121 or the lower reed 122. In addition, the ends of one ends of the upper reed 121 and the lower reed 122 in the insertion direction are respectively bent up and down to form flanges 125a and 125b, and the other ends in the insertion direction are also formed with engaging pieces 126a and 126b which are respectively turned up and down toward the ends where the flanges are located, serving as fixing and limiting structures. Referring back to fig. 2 and 7, the plug portion 111 of the terminal body 110 has first engaging grooves 1112a and 1112b formed at the upper and lower ends of one end of the corresponding flange 125a and 125b, respectively, for the flange 125a and 125b to engage. Similarly, the plug portion 111 is provided with second fastening grooves 1113a and 1114b, which are vertically penetrated, at the other ends of the corresponding fastening pieces 126a and 126b, respectively, so that the fastening pieces 126a and 126b can be fastened. When the snap spring 120 is inserted into the accommodating groove 1111 of the plugging portion 111 along the plugging direction to make the flanges 125a and 125b respectively clamped into the first fastening grooves 1112a and 1112b to abut against each other, the clamping pieces 126a and 126b are also elastically deformed to just clamp into the second fastening grooves 1113a and 1114b to reversely abut against each other, so that the movement of the snap spring 120 in the accommodating groove 1111 of the plugging portion 110 along the plugging direction can be effectively limited, and the influence on the contact stability with the opposite plug terminal 200 due to the displacement or falling phenomenon generated during use is avoided. Meanwhile, the closed-periphery accommodating groove 1111 can limit the movement of the clamp spring 120 in other directions, so that the current stability is further improved.

With further reference to fig. 3 and 7, the plug portion 111 is provided with supporting protrusions 1115a and 1115b protruding toward the arched elastic contacts 127a and 127b at both the upper and lower inner walls 1114a and 1114b of the receiving groove 1111. The supporting projections 1115a and 1115b can support the elastic contact pieces 127a and 127b when the elastic contact pieces 127a and 127b are deformed due to fatigue after long-term use, so that the elastic contact pieces 127a and 127b can be always in stable contact with the opposite terminals. In a specific embodiment, the supporting protrusions 1115a and 1115b may be one or more trapezoidal bosses formed by recessing from the upper and lower surfaces of the socket 111 toward the bottom of the arc of the plurality of elastic contacts 127a and 127b toward the receiving groove 1111, and having lengths extending in the arrangement direction of the plurality of elastic contacts 127a and 127b to provide deformation support for each of the elastic contacts 127a and 127 b.

The electrical connector employing the terminal assembly 100 according to the above embodiment of the present application can ensure that the elastic contact pieces 127a and 127b are always in stable contact with the opposite terminal 200, and improve the current stability of the electrical connector.

The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but is intended to cover any and all modifications, equivalents, and alternatives falling within the spirit and principles of the present application.

Claims (10)

1. The utility model provides a terminal assembly, includes terminal body and jump ring, the terminal body is equipped with the accommodation groove, the jump ring is fixed in the accommodation groove, the jump ring is formed with the grafting groove that supplies to inserting the terminal grafting, its characterized in that, the jump ring is equipped with a plurality of elasticity contact pieces that extend along the grafting direction and arch in the grafting groove, the inner wall in accommodation groove is equipped with the protruding supporting bulge who stretches towards the elasticity contact piece of arch.

2. The terminal assembly according to claim 1, wherein the terminal body has a plugging portion at one end in the plugging direction and a wiring portion at the other end for connecting wires, and a receiving groove penetrating through at both ends in the plugging direction and having a closed periphery is formed in the plugging portion.

3. The terminal assembly according to claim 2, wherein the clip spring is surrounded by upper and lower spring plates arranged at an upper and lower interval and a connecting portion connected to a corresponding side of the upper and lower spring plates to form a U-shaped insertion groove penetrating through both ends in the insertion direction.

4. A terminal assembly according to claim 3, wherein the upper and lower leaves are each provided with a plurality of resilient contacts extending in the plugging direction and arching into the plugging slot.

5. The terminal assembly of claim 4, wherein the plurality of spring contacts of the upper and lower leaves are opposite or staggered with respect to each other.

6. The terminal assembly of claim 5, wherein each of said spring contacts is arched and connected at both ends to either the upper leaf or the lower leaf.

7. The terminal assembly of claim 4, wherein the upper and lower inner walls of the receiving groove are each provided with a support protrusion protruding toward the arched elastic contact piece.

8. The terminal assembly of claim 7, wherein the support protrusion comprises one or more support protrusions extending in a direction in which the plurality of spring contacts are arranged.

9. The terminal assembly according to claim 3, wherein the ends of one ends of the upper and lower spring pieces in the insertion direction are bent to form a turned edge to be snapped into a first snap groove formed at the end of the corresponding one end of the insertion portion; the other ends of the upper reed and the lower reed in the inserting direction form a clamping piece which is outwards turned towards one end and is clamped into a second clamping groove formed in the other end of the inserting portion.

10. An electrical connector comprising the terminal assembly of any one of claims 1-9.