CN218385836U

CN218385836U - Novel heavy current terminal

Info

Publication number: CN218385836U
Application number: CN202222839270.4U
Authority: CN
Inventors: 翟世伟; 王国堂; 翟世强; 王永安; 张红娟; 夏友卿; 王勇攀
Original assignee: Henan THB Electric Co Ltd
Current assignee: Henan THB Electric Co Ltd
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-01-24
Anticipated expiration: 2032-10-27

Abstract

The utility model discloses a novel heavy current terminal, which comprises a shell, wherein an inner layer electric conductor is arranged inside the shell, the inner layer electric conductor and the shell are fixed by rivet riveting, one end of the shell is bent towards the inner layer electric conductor to form a shell bend supporting the inner layer electric conductor, a certain elastic contact force is provided for a contact, the plugging service life of the terminal is prolonged, and the other end of the shell is connected with an L-shaped bending structure; one end of the inner conductor is located in the shell, the other end of the inner conductor extends out of the shell through the L-shaped bending structure, and the L-shaped bending structure has the advantages that the supporting effect in the cavity of the connector is greatly reduced, the influence of torque on the conductivity of the contact is reduced, and the stability of the terminal is effectively improved. The problem of among the prior art terminal lack location structure in the connector cavity, the bolt torque stress transmits anterior elastic contact point and then produces the influence to the electrical contact and the terminal contact force can be because of mechanical fatigue and thermal stress relaxation and reduce is solved.

Description

Novel heavy current terminal

Technical Field

The utility model relates to a new energy automobile terminal technical field especially indicates a novel heavy current terminal.

Background

At present, the requirements on the current-carrying capacity and the reliability of a connector on a new energy automobile are higher and higher, the terminal is used as a core component of the connector, and the structural design influences the service life of the whole connector. The terminal lacks location structure in the connector cavity, and stress will be transmitted anterior elastic contact point and then produce the influence to the electrical contact, and in high temperature high vibration environment, the terminal contact force can reduce because of mechanical fatigue and thermal stress relaxation moreover, and then leads to contact position temperature rise even contact failure.

SUMMERY OF THE UTILITY MODEL

Not enough to in the above-mentioned background art, the utility model provides a novel heavy current terminal has solved among the prior art terminal and has lacked location structure in the connector cavity, and stress will transmit anterior elastic contact point and then produce the problem that influences and terminal contact force can relax and reduce because of mechanical fatigue and thermal stress to the electrical contact.

The technical scheme of the utility model is realized like this: a novel large-current terminal comprises a shell, wherein an inner-layer conductor is arranged in the shell, the inner-layer conductor and the shell are fixed through riveting by rivets, one end of the shell is bent towards the inner-layer conductor to form a shell bend for supporting the inner-layer conductor, and the other end of the shell is connected with an L-shaped bending structure; one end of the inner conductor is positioned in the shell, and the other end of the inner conductor extends out of the shell through the L-shaped bending structure.

The inner conductor comprises two opposite conductor pieces, one end of each conductor piece is connected with a bending structure, the two opposite bending structures form a cavity for inserting the insertion piece, and the conductor pieces extend out of the side wall of the shell part and are provided with boss fixing blocks. And a screw hole is formed in one end, far away from the bending structure, of the electric conductor piece.

The bending structure is a Z-shaped bending structure. And a first bending arc and a second bending arc are respectively arranged at two bending positions of the Z-shaped bending structure.

The two Z-shaped bending structures which are oppositely arranged form a duckbilled opening at the first bending arc and form the cavity at the second bending arc.

The shell is bent and is located the lateral surface of the first arc of bending, is equipped with the third arc of bending on the shell in the second arc of bending outside.

The shell is provided with at least two rivets and comprises two stainless steel sheets which are oppositely arranged to form the shell.

The utility model discloses the advantage:

1. set up the L type on the shell and bend, the L type is bent as positioning mechanism in the connector cavity, and the L type is bent the location and is supported the terminal and fix in the connector cavity, and the L type is bent to a great extent and has reduced the moment of torsion and to the electrically conductive influence of first arc department contact of bending, the effectual current-carrying capacity that has improved.

2. Stainless steel's mechanical properties is better, adopts stainless steel's shell parcel conductor piece, and stainless steel's shell still is provided with the shell moreover and bends, and the shell is bent and is supported the conductor piece, has strengthened terminal plug life-span and antifatigue ability greatly.

3. The integral type design of terminal has simple structure, low cost's advantage for structures such as reed and double-end hole terminal switching on the market.

4. The tail part of the conductor sheet is provided with a boss fixing block which is beneficial to positioning and fixing the terminal in the connector.

Drawings

In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive work.

Fig. 1 is a front view of the present invention.

Fig. 2 is a schematic diagram of the cooperation between the outer shell and the inner conductor of the present invention.

Fig. 3 is a top view of the present invention.

Fig. 4 is a front view of the present invention cooperating with the connector.

Fig. 5 is a top view of the present invention engaged with a connector.

In the figure, 1 shell, 11 shell bending, 12L-shaped bending structure, 13 third bending arc, 2 inner layer conductor, 21 conductor piece, 22 bending structure, 221 first bending arc, 222 second bending arc, 23 cavity, 24 screw hole, 25 boss fixing block, 3 rivet and 4 connector.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, in embodiment 1, a novel large-current terminal includes a housing 1, an inner conductor 2 is disposed inside the housing 1, and the inner conductor 2 and the housing 1 are riveted and fixed by a rivet 3; the inner-layer conductor 2 comprises two oppositely arranged conductor pieces 21, one end of each conductor piece 21 is connected with a bending structure 22, and the two oppositely arranged bending structures 22 form a cavity 23 for inserting the inserting piece; one end of the shell 1 is bent towards the conductor piece 21 to form a shell bend 11 for supporting the conductor piece 21, and the other end of the shell 1 is connected with an L-shaped bending structure 12; one end of the inner conductor 2 is positioned in the shell 1, and the other end of the inner conductor extends out of the shell 1 through the L-shaped bending structure 12. As shown in fig. 4, the L-shaped bend 12 is used as a positioning structure of the terminal in the connector 4, so that the influence of torque on the electrical contact is effectively reduced, and the current-carrying capacity is effectively improved. The inner conductor 2 is preferably made of a copper alloy material having a high electric conductivity to enhance the electric conductivity.

As shown in fig. 3 and 5, a boss fixing block 25 is provided on a side wall of the portion of the electric conductor sheet 21 extending out of the housing 1. The bending structure 22 is a Z-shaped bending structure. The two bending positions of the Z-shaped bending structure are respectively provided with a first bending arc 221 and a second bending arc 222. The two oppositely arranged Z-shaped bending structures form a duckbill-shaped opening at the first bending arc 221 and the cavity 23 at the second bending arc 222. And a screw hole 24 is formed at one end of the electric conductor piece 21 far away from the bending structure 22. As shown in fig. 4, the conductor piece 21 is screwed to the connector 4 through the screw hole 24 at the tail portion. The duckbilled opening design facilitates the insertion of the insert, and the cavity 23 facilitates the opposite insertion of the insert.

As shown in fig. 2, the housing bend 11 is located on the outer side surface of the first bending arc 221, and a third bending arc 13 is provided on the housing 1 outside the second bending arc 222. The shell is bent 11 to support the conductor piece 21, so that the plugging and unplugging life of the terminal is greatly prolonged.

As shown in fig. 3, at least two rivets 3 are arranged on the housing 1, and the housing 1 comprises two stainless steel sheets which are oppositely arranged to form the housing 1. Preferably, six rivets 3 are provided on the housing 1, and the six rivets 3 are provided on the housing 1 in a row. The mechanical property of stainless steel is better, adopts stainless steel's shell 1 parcel conductor piece, can strengthen terminal antifatigue ability.

Embodiment 1 when implementing, select the inlayer electric conductor 2 of two copper alloy materials, 2 one end processing of each inlayer electric conductor are bent into the Z type, screw 24 is processed out to the inlayer electric conductor 2 other end, boss fixed block 25 in the welding of 2 middle parts of each inlayer electric conductor, two inlayer electric conductor 2 that process well set up relatively, then select two stainless steel pieces, the one end processing of each stainless steel piece is buckled, as shown in fig. 2, form the shell and bend 11, the L type is bent in the other end processing of stainless steel piece, install two stainless steel pieces that process well respectively in the inlayer electric conductor 2 outside, and the shell is bent 11 and is supported the first circular arc 221 department that bends of inlayer electric conductor 2, then with fix with rivet, can form the utility model provides a novel heavy current terminal.

Embodiment 2 is different from embodiment 1 in that the housing 1 can also be made of steel sheet made of low-alloy high-strength steel, the main yield strength is 345Mpa-690Mpa, the yield strength is large, and the low-alloy high-strength steel such as 40CrNiMo which can be used has high strength, satisfactory plasticity and toughness in a high-temperature tempering state, good mechanical properties and strong fatigue resistance. The use of such low-alloy high-strength steel as the material of the housing 1 can improve the fatigue resistance of the terminal and increase the service life of the terminal.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel large-current terminal is characterized in that: the device comprises a shell (1), wherein an inner-layer conductor (2) is arranged in the shell (1), the inner-layer conductor (2) and the shell (1) are riveted and fixed through a rivet (3), one end of the shell (1) is bent towards the inner-layer conductor (2) to form a shell bending part (11) for supporting the inner-layer conductor (2), and the other end of the shell (1) is provided with an L-shaped bending structure (12); one end of the inner conductor (2) is positioned in the shell (1), and the other end of the inner conductor extends out of the shell (1) through the L-shaped bending structure (12).

2. A novel high current terminal according to claim 1, wherein: inner conductor (2) are including two relative electric conductor piece (21) that set up, the one end of electric conductor piece (21) is connected with bending structure (22), and two relative bending structure (22) that set up form and supply inserted sheet male cavity (23), and electric conductor piece (21) are stretched out and are equipped with boss fixed block (25) on the lateral wall of shell (1) part.

3. A novel high current terminal according to claim 2, wherein: and a screw hole (24) is formed in one end, far away from the bending structure (22), of the electric conductor piece (21).

4. A novel high current terminal according to claim 3, wherein: the bending structure (22) is a Z-shaped bending structure.

5. The novel high current terminal of claim 4, wherein: and a first bending arc (221) and a second bending arc (222) are respectively arranged at two bending positions of the Z-shaped bending structure.

6. The novel high current terminal of claim 5, wherein: the two Z-shaped bending structures which are oppositely arranged form a duckbill-shaped opening at the first bending arc (221) and form the cavity (23) at the second bending arc (222).

7. The novel high current terminal of claim 6, wherein: the shell is bent (11) and is located on the outer side face of the first bending arc (221), and a third bending arc (13) is arranged on the shell (1) on the outer side of the second bending arc (222).

8. A novel large current terminal according to any one of claims 1 to 7, wherein: the improved rivet structure is characterized in that at least two rivets (3) are arranged on the shell (1), the shell (1) comprises two stainless steel sheets, and the two stainless steel sheets are oppositely arranged to form the shell (1).