Stamping terminal, high-voltage connector contact and high-voltage connector

Abstract

The utility model provides a stamping terminal, high-voltage connector contact and high-voltage connector wherein the stamping terminal comprises a terminal body, a plurality of first contact pieces and a plurality of second contact pieces, the terminal body is provided with an accommodating groove, one end of each first contact piece is fixedly connected to the terminal body, and the other end of each first contact piece is fixedly connected to the second contact piece. The other end of the first contact piece is a free end, the two ends of the second contact piece are fixedly connected to the terminal body respectively, and the first contact piece and the second contact piece are arranged in the containing groove. According to the stamping terminal, the plugging force stability of the whole high-voltage connector is effectively guaranteed on the whole, meanwhile, the contact area and the current-carrying capacity can be improved, and the reliability of the stamping terminal is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of new energy electric vehicle parts, in particular to a stamping terminal, a high-voltage connector contact and a high-voltage connector. Background Art

[0002] In recent years, with the continuous improvement and maturity of liquid-cooled ultra-fast charging technology, the demand for terminals with high current-carrying capacity in new energy electric vehicles has been increasing. Among them, high-voltage connectors are widely used in new energy electric vehicles. It is used to realize the electrical connection between two components and is a key component in the high-voltage circuit of electric vehicles. The contacts of traditional high-voltage connectors are mainly coil springs or torsion springs, and their production processes are relatively complex and the production costs are relatively high. At present, some contacts of high-voltage connectors are formed by stamping terminals. The stamping terminals achieve electrical connection by setting a plurality of contact pieces. Although it has the characteristic of low cost, one side of the contact piece of the stamping terminal is completely disconnected, resulting in too small insertion and extraction force of the entire connector, which easily leads to loose connection and protrusion of the connector, and the contact area and current-carrying capacity of the connector are insufficient, the temperature rise is too high, and the reliability is low.

[0003] Therefore, it is necessary to provide a stamping terminal with stable insertion and extraction force and high reliability, and to provide a high-voltage connector contact with such a stamping terminal, and to provide a high-voltage connector with such a high-voltage connector contact. Summary of the Utility Model

[0004] The first object of the utility model is to provide a stamping terminal with stable insertion and extraction force and high reliability.

[0005] The second object of the utility model is to provide a high-voltage connector contact with a stamping terminal having stable insertion and extraction force and high reliability.

[0006] The third object of the utility model is to provide a high-voltage connector with a high-voltage connector contact having a stamping terminal with stable insertion and extraction force and high reliability.

[0007] To achieve the above first object, the utility model provides a stamping terminal, which includes a terminal body, a plurality of first contact pieces and a plurality of second contact pieces. A receiving groove is provided on the terminal body. One end of the first contact piece is fixedly connected to the terminal body, and the other end of the first contact piece is a free end. Both ends of the second contact piece are respectively fixedly connected to the terminal body. The first contact piece and the second contact piece are arranged in the receiving groove.

[0008] Compared with the prior art, the stamping terminal of the present utility model is provided with a first contact piece and a second contact piece on the terminal body, and the first contact piece and the second contact piece are arranged in the accommodating groove of the terminal body. Since one end of the first contact piece is fixedly connected to the terminal body and the other end is a free end, and both ends of the second contact piece are respectively fixedly connected to the terminal body, the contact pieces on the stamping terminal present a structure composed of disconnections and connections arranged alternately. The second contact piece with both ends fixedly connected has a small range of movement, which increases the insertion and extraction force required at the corresponding position of the second contact piece during the insertion and extraction process. The first contact piece with one end fixedly connected and the other end being a free end has a flexible range of movement, which reduces the insertion and extraction force required at the corresponding position of the first contact piece during the insertion and extraction process. Through the cooperation of alternating high and low insertion and extraction forces, the stability of the insertion and extraction force of the entire high-voltage connector is effectively ensured as a whole. At the same time, the contact area and current-carrying capacity can also be increased, ensuring the reliability of the stamping terminal.

[0009] Preferably, both the first contact piece and the second contact piece are in a "W" shape.

[0010] To achieve the above second object, the present utility model provides a high-voltage connector contact member, including a base body and the above-mentioned stamping terminal, and the terminal body is fixedly arranged on the base body.

[0011] Compared with the prior art, the high-voltage connector contact member of the present utility model is provided with a stamping terminal. The stamping terminal is provided with a first contact piece and a second contact piece on the terminal body, and the first contact piece and the second contact piece are arranged in the accommodating groove of the terminal body. Since one end of the first contact piece is fixedly connected to the terminal body and the other end is a free end, and both ends of the second contact piece are respectively fixedly connected to the terminal body, the contact pieces on the stamping terminal present a structure composed of disconnections and connections arranged alternately. The second contact piece with both ends fixedly connected has a small range of movement, which increases the insertion and extraction force required at the corresponding position of the second contact piece during the insertion and extraction process. The first contact piece with one end fixedly connected and the other end being a free end has a flexible range of movement, which reduces the insertion and extraction force required at the corresponding position of the first contact piece during the insertion and extraction process. Through the cooperation of alternating high and low insertion and extraction forces, the stability of the insertion and extraction force of the entire high-voltage connector is effectively ensured as a whole. At the same time, the contact area and current-carrying capacity can also be increased, ensuring the reliability of the stamping terminal.

[0012] Preferably, the base body is integrally formed and folded to form a first base body and a second base body. One end of the first base body and one end of the second base body are arranged opposite to each other and form an installation position. The ends of the first base body and the second base body away from the installation position are fixedly attached to each other. The stamping terminal is arranged in the installation position, and the stamping terminal is respectively arranged on the first base body and the second base body.

[0013] Preferably, the installation position is away from the folding part of the base body, and one end of the first base body and the second base body away from the installation position is riveted and connected.

[0014] Preferably, the installation position is close to the folding part of the base body and is provided with an installation slot hole, and one end of the first base body and the second base body away from the installation position is riveted and connected.

[0015] Preferably, it further includes a ferrule, the ferrule is sleeved on the first base body and the second base body and is located on one side of the installation position, and the ferrule is provided with lugs for external connection.

[0016] Preferably, the terminal body is provided with positioning holes, and the base body is provided with positioning posts, and the positioning posts are inserted and fixed in the positioning holes to position the terminal body on the base body.

[0017] To achieve the above third object, the present invention provides a high-voltage connector, including a connector housing and the above-mentioned high-voltage connector contact members, and a plurality of the high-voltage connector contact members are respectively inserted into the connector housing.

[0018] Compared with the prior art, the high-voltage connector of the present invention is provided with high-voltage connector contact members, and the high-voltage connector contact members are provided with stamping terminals. The stamping terminals are provided with a first contact piece and a second contact piece on the terminal body, and the first contact piece and the second contact piece are arranged in the accommodation groove of the terminal body. Since one end of the first contact piece is fixedly connected to the terminal body and the other end is a free end, and both ends of the second contact piece are respectively fixedly connected to the terminal body, the contact pieces on the stamping terminal present a structure of being separated and arranged alternately between disconnection and connection. The second contact piece with both ends fixedly connected has a small movement range, which improves the insertion and extraction force required at the corresponding position of the second contact piece during the insertion and extraction process. The first contact piece with one end fixedly connected and the other end being a free end has a flexible movement range, which reduces the insertion and extraction force required at the corresponding position of the first contact piece during the insertion and extraction process. Through the cooperation of alternating high and low insertion and extraction forces, the insertion and extraction force stability of the entire high-voltage connector is effectively ensured as a whole. At the same time, the contact area and current-carrying capacity can also be improved, and the reliability of the stamping terminal is ensured.

[0019] Preferably, the base body is provided with a barb structure for increasing the holding force with the connector housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a top view of the stamping terminal of the present invention.

[0021] Figure 2 is a front view of the stamping terminal of the present invention.

[0022] Figure 3 is a three-dimensional structure diagram of the first embodiment of the high-voltage connector contact of the present utility model.

[0023] Figure 4 is Figure 3 an exploded view of the high-voltage connector contact shown in the figure.

[0024] Figure 5 is a three-dimensional structure diagram of the second embodiment of the high-voltage connector contact of the present utility model.

[0025] Figure 6 is a three-dimensional structure diagram of the third embodiment of the high-voltage connector contact of the present utility model.

[0026] Figure 7 is a three-dimensional structure diagram of the high-voltage connector of the present utility model.

[0027] Figure 8 is a cross-sectional view of the high-voltage connector of the present utility model.

[0028] Figure 9 is a cross-sectional view of the high-voltage connector of the present utility model from another angle. Detailed Embodiment

[0029] In order to elaborate on the technical content and structural features of the present utility model in detail, the following further description is made in conjunction with the embodiments and with reference to the accompanying drawings.

[0030] Please refer to Figure 7 , the high-voltage connector 200 of the present utility model includes a connector housing 201 and high-voltage connector contacts 100, and a plurality of high-voltage connector contacts 100 are respectively inserted into the connector housing 201.

[0031] Please refer to Figures 1 to 4 , the high-voltage connector contact 100 of the present utility model includes a base body 2 and a stamping terminal 1. Among them, the stamping terminal 1 includes a terminal body 11, a plurality of first contact pieces 12 and a plurality of second contact pieces 13. A receiving groove 111 is provided on the terminal body 11. One end of the first contact piece 12 is fixedly connected to the terminal body 11, and the other end of the first contact piece 12 is a free end. Both ends of the second contact piece 13 are respectively fixedly connected to the terminal body 11. The first contact piece 12 and the second contact piece 13 are arranged in the receiving groove 111. The terminal body 11 is fixed on the base body 2.

[0032] The first contact piece 12 and the second contact piece 13 on the stamping terminal 1 of the present utility model present a structure composed of disconnection and connection arranged alternately. The movable range of the second contact piece 13 fixedly connected at both ends is small, which improves the insertion and extraction force required at the corresponding position of the second contact piece 13 during the insertion and extraction process. The movable range of the first contact piece 12 fixedly connected at one end and with the other end being a free end is flexible, which reduces the insertion and extraction force required at the corresponding position of the first contact piece 12 during the insertion and extraction process. Through the cooperation of alternating high and low insertion and extraction forces, the stability of the insertion and extraction force of the entire high-voltage connector 200 is effectively ensured as a whole. At the same time, the contact area and current-carrying capacity can also be improved, ensuring the reliability of the stamping terminal 1.

[0033] Specifically, the first contact piece 12 and the second contact piece 13 are alternately and spacedly arranged in the accommodation groove 111 of the terminal body 11 along the same arrangement direction. Among them, in this arrangement direction, multiple first contact pieces 12 and a single second contact piece 13 can be alternately arranged, but not limited thereto. For example, multiple first contact pieces 12 and multiple second contact pieces 13 can also be alternately arranged, or a single first contact piece 12 and a single second contact piece 13 can be alternately arranged.

[0034] Please refer to Figure 1 , a plurality of accommodation grooves 111 are provided on the terminal body 11, and the first contact piece 12 and the second contact piece 13 are arranged in the accommodation groove 111 in an arranged manner. In this embodiment, the number of accommodation grooves 111 is two, but not limited thereto.

[0035] Please refer to Figure 2 , in this embodiment, both the first contact piece 12 and the second contact piece 13 are in a "W" shape, but not limited thereto.

[0036] Please refer to Figure 3 , Figure 4 and Figure 6 as shown, the base body 2 is integrally formed and folded to form a first base body 21 and a second base body 22. One end of the first base body 21 and one end of the second base body 22 are oppositely arranged and form an installation position 24. The ends of the first base body 21 and the second base body 22 away from the installation position 24 are fixedly attached. The stamping terminal 1 is provided in the installation position 24, and the stamping terminal 1 is respectively arranged on the first base body 21 and the second base body 22. But not limited thereto, the base body 2 can also adopt a split connection structure, that is, the first base body 21 and the second base body 22 are independent base bodies, and the first base body 21 and the second base body 22 are fixedly connected together by a fixing connection method such as riveting.

[0037] As Figures 3 to 4As shown, in one embodiment, the installation position 24 is away from the folding position of the base body 2, and one end of the first base body 21 and the second base body 22 away from the installation position 24 is riveted. Among them, a plurality of riveting holes 23 can be provided on both the first base body 21 and the second base body 22. The first base body 21 and the second base body 22 are riveted through the riveting parts 231 in the riveting holes 23, so that the first base body 21 and the second base body 22 are more fully and tightly connected together, but not limited thereto. Among them, the riveting method can adopt the reverse riveting method, but not limited thereto. Further, one of the first base body 21 and the second base body 22 is provided with a folding edge 211, and the folding edge 211 is folded and riveted on the other of the first base body 21 and the second base body 22, so as to further fixedly connect the first base body 21 and the second base body 22 tightly together.

[0038] As Figure 6 shown, in one embodiment, the installation position 24 is close to the folding position of the base body 2 and is formed with an installation slot hole 241, and one end of the first base body 21 and the second base body 22 away from the installation position 24 is riveted. Among them, a plurality of riveting holes 23 can be provided on both the first base body 21 and the second base body 22. The first base body 21 and the second base body 22 are riveted through the riveting parts 231 in the riveting holes 23, so that the first base body 21 and the second base body 22 are more fully and tightly connected together, but not limited thereto. Among them, the riveting method can adopt the reverse riveting method, but not limited thereto.

[0039] As Figure 5 and Figure 6 shown, in one embodiment, the high-voltage connector contact 100 further includes a ferrule 3, and the ferrule 3 is sleeved on the first base body 21 and the second base body 22 and is located on one side of the installation position 24. Among them, in Figure 5 the structure shown, since the free ends of both the first substrate and the second base body 22 may be deflected outward under the extrusion force when being plugged and connected to other components, after long-term use, the free ends of both the first substrate and the second base body 22 may break, seriously affecting the service life of the high-voltage connector contact 100. Therefore, in this embodiment, by arranging the ferrule 3 to be sleeved on the free ends of both the first base body 21 and the second base body 22, the structural stability of the base body 2 at the free ends of both the first base body 21 and the second base body 22 and the installation position 24 is improved, and the service life of the high-voltage connector contact 100 is improved. Similarly, in Figure 6 the structure shown, the ferrule 3 is connected to the folding position of both the first base body 21 and the second base body 22, so as to provide the structural stability of the base body 2 at the folding position of both the first base body 21 and the second base body 22 and the installation position 24.

[0040] Please refer to Figure 5 and Figure 6 , andFigure 8 In one embodiment, the ferrule 3 is provided with lugs 27 for external connection. Specifically, when the high-voltage connector contact 100 is inserted into the connector housing 201, the lugs 27 are firmly fixed to the inner wall of the connector housing 201. Among them, the lugs 27 are provided on both outer sides of the ferrule 3. The lugs 27 can be made of elastic materials such as elastic sheets, but are not limited thereto. In other embodiments, such as Figure 3 and Figure 4 shown, the lugs 27 can also be arranged on the outside of the base 2 instead of being provided on the ferrule 3.

[0041] Please refer to Figures 1 to 4 , a positioning hole 112 is provided on the terminal body 11, and a positioning post 25 is provided on the base 2. The positioning post 25 is inserted and fixed in the positioning hole 112 to position the terminal body 11 on the base 2. Among them, the positioning post 25 and the positioning hole 112 can be connected by welding or crimping. Among them, when the base 2 is formed by the above-mentioned folding and integral molding method, the positioning post 25 is arranged on the inner side wall of the installation slot hole 241; when the base 2 is divided into a first base 21 and a second base 22, the positioning post 25 is arranged at the free ends of both the first base 21 and the second base 22.

[0042] Please refer to Figure 3 , in one embodiment, the base 2 is provided with a stud through-hole 26. Among them, the stud through-hole 26 is arranged through the fixed connection ends of both the first base 21 and the second base 22.

[0043] Please refer to Figures 3 to 5 , and Figure 9 , in one embodiment, the base 2 is provided with a barb structure 28 for increasing the holding force with the connector housing 201. The base 2 abuts against the inner wall of the connector housing 201 by means of the barb structure 28, increasing the holding force of the high-voltage connector contact 100, making the installation connection of the high-voltage connector contact 100 more reliable and reducing the risk of pin withdrawal.

[0044] Please refer to Figures 3 to 5 , and Figure 9 , in one embodiment, the base 2 is provided with a notch 29 for fixing the sealing ring 202. By providing the notch 29 on the base 2, the sealing ring 202 can be fixed.

[0045] Please refer to Figure 7 , the high-voltage connector contact 100 can be provided in a connector with a socket structure as a female terminal and inserted into a male plug terminal, but is not limited thereto. In other embodiments, the high-voltage connector contact 100 can also be provided in a connector with a plug structure as a female terminal and inserted into a female socket terminal.

[0046] In summary, the high-voltage connector 200 of the present utility model is provided with a high-voltage connector contact member 100. The high-voltage connector contact member 100 is provided with a stamping terminal 1. The stamping terminal 1 is provided with a first contact piece 12 and a second contact piece 13 on the terminal body 11, and the first contact piece 12 and the second contact piece 13 are arranged in the accommodation groove 111 of the terminal body 11. Since one end of the first contact piece 12 is fixedly connected to the terminal body 11 and the other end is a free end, and both ends of the second contact piece 13 are respectively fixedly connected to the terminal body 11, the contact pieces on the stamping terminal 1 present a structure composed of disconnection and connection arranged alternately. The movement range of the second contact piece 13 fixedly connected at both ends is small, which improves the insertion and extraction force required at the corresponding position of the second contact piece 13 during the insertion and extraction process. The movement range of the first contact piece 12 with one end fixedly connected and the other end being a free end is flexible, which reduces the insertion and extraction force required at the corresponding position of the first contact piece 12 during the insertion and extraction process. Through the cooperation of alternating high and low insertion and extraction forces, the stability of the insertion and extraction force of the entire high-voltage connector 200 is effectively ensured as a whole. At the same time, the contact area and current-carrying capacity of the high-voltage connector contact member 100 can be improved, and the reliability of the stamping terminal 1 is ensured. In addition, the shape of the stamping terminal 1 of the present utility model is simple and easy to be produced automatically, further reducing the manufacturing cost of the high-voltage connector contact member 100.

[0047] The above-disclosed are only the preferred examples of the present utility model, and the scope of the rights of the present utility model cannot be limited thereby. Therefore, all equivalent changes made according to the claims of the present utility model fall within the scope covered by the present utility model.

Claims

1. A stamping terminal, characterized in that, It includes a terminal body, a number of first contact pieces and a number of second contact pieces. A receiving groove is provided on the terminal body. One end of the first contact piece is fixedly connected to the terminal body, and the other end of the first contact piece is a free end. Both ends of the second contact piece are respectively fixedly connected to the terminal body, and the first contact piece and the second contact piece are arranged in the receiving groove.

2. The stamping terminal according to claim 1, wherein Both the first contact piece and the second contact piece are in a "W" shape.

3. A high-voltage connector contact, characterized in that, It includes a base body and the stamping terminal according to any one of claims 1-2, and the terminal body is fixed on the base body.

4. The high-voltage connector contact according to claim 3, characterized in that, The base body is integrally formed and folded to form a first base body and a second base body. One end of the first base body and one end of the second base body are oppositely arranged to form a mounting position. One ends of the first base body and the second base body away from the mounting position are attached and fixed. The stamping terminal is provided in the mounting position, and the stamping terminal is respectively arranged on the first base body and the second base body.

5. The high-voltage connector contact according to claim 4, characterized in that, The mounting position is away from the folding part of the base body, and one ends of the first base body and the second base body away from the mounting position are riveted and connected.

6. The high-voltage connector contact according to claim 4, characterized in that, The mounting position is close to the folding part of the base body and forms a mounting slot hole, and one ends of the first base body and the second base body away from the mounting position are riveted and connected.

7. The high-voltage connector contact according to claim 4, characterized in that, It further includes a ferrule. The ferrule is sleeved on the first base body and the second base body and is located on one side of the mounting position. The ferrule is provided with lugs for external connection.

8. The high-voltage connector contact according to claim 3, characterized in that, A positioning hole is provided on the terminal body, and a positioning post is provided on the base body. The positioning post is inserted and fixed in the positioning hole to position the terminal body on the base body.

9. A high-voltage connector, characterized in that, It includes a connector housing and the high-voltage connector contact according to any one of claims 3-8. A number of the high-voltage connector contacts are respectively inserted into the connector housing.

10. The high-voltage connector according to claim 9, characterized in that, The base body is provided with a barb structure for increasing the retention force with the connector housing.

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