Flat plug terminal, terminal assembly and connector

Abstract

The utility model discloses a flat plug terminal, a terminal assembly and a connector, and belongs to the technical field of electronic connecting elements, the flat plug terminal comprises a copper bar, a conductive member, a first elastic member and a second elastic member; the conductive piece is provided with a fixed part, and a first clamping part, a second clamping part, a third clamping part and a fourth clamping part which are connected with the fixed part; the first elastic piece is provided with a first connecting part mounted on the fixing part, and a first elastic part and a third elastic part which are connected with the first connecting part; the first elastic part is connected with the first clamping part, the third elastic part is connected with the third clamping part, and the second elastic part is provided with a second connecting part installed on the fixing part, and a second elastic part and a fourth elastic part which are connected with the second connecting part; the second elastic part is connected with the second clamping part, and the fourth elastic part is connected with the fourth clamping part; and the first clamping part and the second clamping part are arranged at an interval and clamp the copper bar together. The flat plug terminal is large in tolerance, and the reliability of conductive connection can be improved.

Description

Technical Field

[0001] This utility model relates to the technical field of electronic connection elements, and in particular to a flat terminal, terminal assembly and connector. Background Technology

[0002] Flat terminals, as an important electronic connection component, are widely used in various electrical equipment and circuits. Their simple design, convenient operation, and low cost have made them essential in modern industry. With continuous technological advancements, flat terminal technology is constantly being innovated to adapt to increasingly complex and diverse application needs. As a crucial component of the electronic connection field, the development of flat terminal technology is of great significance to promoting the progress of the entire electronics industry. Currently, with continuous technological advancements and increasing user demands, the existing shortcomings of flat terminals are becoming increasingly apparent. In existing flat terminals, the conductive parts are fixed to the copper busbar using screws or other fasteners. These conductive parts cannot move, resulting in small tolerances. When a flat terminal is mated with a male terminal, some contacts of the conductive parts may fail to make contact with the male terminal contacts, leading to poor reliability of the conductive connection and affecting the electrical performance of the flat terminal. Utility Model Content

[0003] The purpose of this utility model embodiment is to provide a flat plug terminal, a terminal assembly, and a connector. The flat plug terminal has a large tolerance, which can improve the reliability of the conductive connection.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] On the one hand, a flat terminal block is provided, comprising:

[0006] Copper busbar;

[0007] A conductive component has a fixing part and a first clamping part, a second clamping part, a third clamping part, and a fourth clamping part, all of which are connected to the fixing part;

[0008] The first elastic member has a first connecting portion installed on the fixed portion, a first elastic portion and a third elastic portion both connected to the first connecting portion; the first elastic portion is connected to the first clamping portion, and the third elastic portion is connected to the third clamping portion.

[0009] The second elastic member has a second connecting portion installed on the fixed portion, a second elastic portion and a fourth elastic portion both connected to the second connecting portion; the second elastic portion is connected to the second clamping portion, and the fourth elastic portion is connected to the fourth clamping portion;

[0010] The first clamping part and the second clamping part are arranged at intervals and together clamp the copper busbar, and the third clamping part and the fourth clamping part are arranged at intervals and together are used to clamp the external terminal.

[0011] Optionally, the flat terminal further includes a first rivet and a second rivet; the first connecting portion is riveted to the fixing portion by the first rivet, and the second connecting portion is riveted to the fixing portion by the second rivet.

[0012] Optionally, the first connecting part is provided with a first positioning strip, the second connecting part is provided with a second positioning strip, and the fixing part is provided with a first positioning groove and a second positioning groove. The first positioning strip is engaged with the first positioning groove, and the second positioning strip is engaged with the second positioning groove.

[0013] Optionally, the first clamping part includes a plurality of first conductive strips spaced apart from the fixing part, the second clamping part includes a plurality of second conductive strips spaced apart from the fixing part, the third clamping part includes a plurality of third conductive strips spaced apart from the fixing part, and the fourth clamping part includes a plurality of fourth conductive strips spaced apart from the fixing part.

[0014] The first elastic part includes a plurality of first elastic strips spaced apart from the first connecting part; the second elastic part includes a plurality of second elastic strips spaced apart from the second connecting part; the third elastic part includes a plurality of third elastic strips spaced apart from the first connecting part; and the fourth elastic part includes a plurality of fourth elastic strips spaced apart from the second connecting part.

[0015] Multiple first conductive strips and multiple first elastic strips correspond one-to-one, multiple second conductive strips and multiple second elastic strips correspond one-to-one, multiple third conductive strips and multiple third elastic strips correspond one-to-one, and multiple fourth conductive strips and multiple fourth elastic strips correspond one-to-one. The first elastic strip abuts against the first conductive strip, the second elastic strip abuts against the second conductive strip, the third elastic strip abuts against the third conductive strip, and the fourth elastic strip abuts against the fourth conductive strip.

[0016] Optionally, the fixing part includes a fixing plate; the fixing plate is arranged in a ring shape by bending.

[0017] Optionally, one end of the fixing plate is provided with a locking platform, and the other end of the fixing plate is provided with a locking groove, wherein the locking platform engages with the locking groove.

[0018] Optionally, the distance between the first clamping part and the second clamping part gradually decreases and then gradually increases along the direction away from the fixing part.

[0019] Optionally, the distance between the third clamping part and the fourth clamping part gradually decreases and then gradually increases along the direction away from the fixing part.

[0020] Optionally, the copper busbar has a plug-in portion and a mounting portion, the mounting portion having a mounting hole, and the first clamping portion and the second clamping portion clamping together the plug-in portion.

[0021] On the other hand, a terminal assembly is provided, including a housing and the aforementioned flat terminal; the housing is provided with a plug-in channel, the copper busbar is mounted on the housing, and the conductive element, the first elastic element, the second elastic element, and at least a portion of the copper busbar are inserted into the plug-in channel.

[0022] In one aspect, a connector is provided, including a male terminal and the aforementioned terminal assembly; the male terminal is inserted into the mating channel and held between the third clamping portion and the fourth clamping portion.

[0023] The beneficial effects of this utility model are as follows: The conductive component of this flat plug terminal is provided with a first elastic component and a second elastic component. The first clamping part and the second clamping part of the conductive component are elastically clamped on the copper busbar by the first elastic part of the first elastic component and the second elastic part of the second elastic component, respectively. The third clamping part and the fourth clamping part of the conductive component are elastically connected to the male terminal by the third elastic part of the first elastic component and the fourth elastic part of the second elastic component, respectively. By the left and right elasticity of the first elastic component and the second elastic component, the conductive component can swing relative to the copper busbar when it is installed on the copper busbar, which increases the tolerance and mobility of the flat plug terminal during assembly, so that the flat plug terminal can make better contact with the male terminal when it is used after assembly, thereby improving the connection reliability and electrical performance of the flat plug terminal.

[0024] The use of the aforementioned flat terminals in this terminal assembly and connector improves the reliability of the conductive connection and electrical performance. Attached Figure Description

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0026] Figure 1 This is a schematic diagram of the flat connector structure;

[0027] Figure 2 An exploded view of a flat connector terminal;

[0028] Figure 3 This is a schematic diagram of the conductive component.

[0029] Figure 4 This is a schematic diagram of the structure of the first elastic element and the second elastic element;

[0030] Figure 5 This is a schematic diagram of the terminal assembly.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Copper busbar; 2. Conductive component; 3. First elastic component; 4. Second elastic component; 5. First rivet; 6. Second rivet; 8. Outer casing;

[0033] 101. Connecting part; 102. Mounting part; 103. Mounting hole;

[0034] 201. Fixing part; 202. First clamping part; 203. Second clamping part; 204. Third clamping part; 205. Fourth clamping part; 206. First positioning groove; 207. Second positioning groove; 208. First conductive strip; 209. Second conductive strip; 210. Third conductive strip; 211. Fourth conductive strip; 213. Carding platform; 214. Carding slot;

[0035] 301. First connecting part; 302. First elastic part; 303. Third elastic part; 304. First positioning strip; 305. First elastic strip; 306. Third elastic strip; 307. First riveting hole;

[0036] 401. Second connecting part; 402. Second elastic part; 403. Fourth elastic part; 404. Second positioning strip; 405. Second elastic strip; 406. Fourth elastic strip; 407. Second riveting hole;

[0037] 801. Plug-in channel. Detailed Implementation

[0038] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0039] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "fixed," "linked," "communicated," "abutting," "clamping," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In the description herein, it should be understood that the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationships shown in the accompanying drawings, and are used only for ease of description and simplification of operation. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are merely used for distinction in description and have no special meaning.

[0042] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0044] Unless otherwise stated or defined, the term "and / or" as used in this invention includes any and all combinations of one or more of the associated listed items.

[0045] For ease of description, unless otherwise stated, the terms "up" and "down" in the following text refer to the same direction as "top" and "bottom". Figure 1 Its left and right directions are consistent, and the left and right directions mentioned below are the same as those in the previous text. Figure 1 Its left and right directions are consistent.

[0046] like Figures 1 to 4As shown, this embodiment provides a flat plug terminal, which includes a copper busbar 1, a conductive element 2, a first elastic element 3, and a second elastic element 4. The first elastic element 3 and the second elastic element 4 are arranged at intervals from left to right. The conductive element 2 is disposed between the first elastic element 3 and the second elastic element 4 and is snapped onto the copper busbar 1 from top to bottom, thereby realizing the conductive connection between the conductive element 2 and the copper busbar 1.

[0047] The conductive component 2 has a fixing portion 201 and a first clamping portion 202, a second clamping portion 203, a third clamping portion 204, and a fourth clamping portion 205, all connected to the fixing portion 201. The first clamping portions 202 and 203 are connected to the upper end of the fixing portion 201 and are arranged at intervals from left to right. The third clamping portions 204 and 205 are connected to the lower end of the fixing portion 201 and are arranged at intervals from left to right. A first clamping groove for accommodating a copper busbar 1 is formed between the first clamping portions 202 and 203, and a second clamping groove for accommodating an external terminal is formed between the third clamping portions 204 and 205. When the flat plug terminal in this application is a female terminal of the connector, the external terminal can be a male terminal of the connector.

[0048] The first elastic member 3 has a first connecting portion 301 mounted on the fixing portion 201, a first elastic portion 302 and a third elastic portion 303 both connected to the first connecting portion 301. The first elastic portion 302 is located at the upper end of the first connecting portion 301, and the second elastic portion 402 is located at the lower end of the first connecting portion 301. The first elastic portion 302 is connected to the first clamping portion 202, and the third elastic portion 303 is connected to the third clamping portion 204. The second elastic member 4 has a second connecting portion 401 mounted on the fixing portion 201, a second elastic portion 402 and a fourth elastic portion 403 both connected to the second connecting portion 401. The second elastic portion 402 is located at the upper end of the second connecting portion 401, and the fourth elastic portion 403 is located at the lower end of the second connecting portion 401. The second elastic portion 402 is connected to the second clamping portion 203, and the fourth elastic portion 403 is connected to the fourth clamping portion 205.

[0049] The first clamping part 202 and the second clamping part 203 are arranged at intervals. Under the elastic action of the first elastic part 302 and the second elastic part 402, the first clamping part 202 and the second clamping part 203 maintain a certain clamping force to clamp the copper busbar 1. The third clamping part 204 and the fourth clamping part 205 are arranged at intervals and are used together to clamp the external terminal. Under the elastic action of the third elastic part 303 and the fourth elastic part 403, the third clamping part 204 and the fourth clamping part 205 maintain a certain clamping force to clamp the male terminal.

[0050] In existing systems, the conductive component 2 is directly fixed to the copper busbar 1 using screws, rivets, etc. The conductive component 2 cannot move, resulting in low tolerance. Especially when the male terminal has large dimensional tolerances after processing, it easily leads to contact failure after the male terminal and the flat terminal are connected. That is, after the male terminal and the flat terminal are mated, all or part of the contacts fail to make contact, severely affecting the electrical performance of the flat terminal. This application uses an elastic component to allow the conductive component 2 to be elastically clamped onto the copper busbar 1. The conductive component 2 can swing left and right relative to the copper busbar 1 while maintaining a clamping force on the copper busbar 1, increasing the capacity of the assembled male terminal and flat terminal and ensuring high-tolerance contact between them.

[0051] During the production and assembly of the flat plug terminal of this application, the first elastic element 3 and the second elastic element 4 are first installed on the conductive element 2, and then the conductive element 2 is clamped onto the copper busbar 1 with a thickness of 2.0mm, so that the conductive element 2 can be assembled after swinging the copper busbar 1 left and right.

[0052] In one embodiment, the flat terminal further includes a first rivet 5 and a second rivet 6. The first connecting portion 301 is riveted to the fixing portion 201 via the first rivet 5, and the second connecting portion 401 is riveted to the fixing portion 201 via the second rivet 6. Specifically, the first connecting portion 301 has a first riveting hole 307 through which the first rivet 5 passes, and the second connecting portion 401 has a second riveting hole 407 through which the second rivet 6 passes. The fixing portion 201 of the conductive element 2 has multiple first rivets 5 and multiple second rivets 6, allowing the conductive element 2, the first elastic element 3, and the second elastic element 4 to fit more tightly during connection. This mechanical interlocking action of the first rivet 5 and the second rivet 6 significantly enhances the strength and stability of the connection. The connection method using the first rivet 5 and the second rivet 6 effectively prevents loosening and detachment, ensuring the integrity and safety of the structure. Furthermore, compared to welding and threaded connections, press riveting is faster and uses simpler tools and equipment, saving considerable time and cost.

[0053] Furthermore, the first connecting part 301 is provided with a first positioning strip 304, the second connecting part 401 is provided with a second positioning strip 404, and the fixing part 201 is provided with a first positioning groove 206 and a second positioning groove 207. The first positioning strip 304 is engaged with the first positioning groove 206, and the second positioning strip 404 is engaged with the second positioning groove 207. When the first elastic member 3 and the second elastic member 4 are installed on the conductive member 2, positioning is achieved by the first positioning strip 304 engaging with the first positioning groove 206 and the second positioning strip 404 engaging with the second positioning groove 207, and then fixed by the first rivet 5 and the second rivet 6.

[0054] Optionally, the first clamping part 202 includes a plurality of first conductive strips 208 spaced apart from the fixing part 201; the second clamping part 203 includes a plurality of second conductive strips 209 spaced apart from the fixing part 201; the third clamping part 204 includes a plurality of third conductive strips 210 spaced apart from the fixing part 201; and the fourth clamping part 205 includes a plurality of fourth conductive strips 211 spaced apart from the fixing part 201. The plurality of first conductive strips 208 together form the first clamping part 202; the plurality of second conductive strips 209 together form the second clamping part 203; the plurality of third conductive strips 210 together form the third clamping part 204; and the plurality of fourth conductive strips 211 together form the fourth clamping part 205. The first conductive strips 208, second conductive strips 209, third conductive strips 210, and fourth conductive strips 211 are all contacts of flat-prong terminals.

[0055] The first elastic portion 302 includes a plurality of first elastic strips 305 spaced apart from the first connecting portion 301; the second elastic portion 402 includes a plurality of second elastic strips 405 spaced apart from the second connecting portion 401; the third elastic portion 303 includes a plurality of third elastic strips 306 spaced apart from the first connecting portion 301; and the fourth elastic portion 403 includes a plurality of fourth elastic strips 406 spaced apart from the second connecting portion 401. The plurality of first elastic strips 305 together constitute the first elastic portion 302; the plurality of second elastic strips 405 together constitute the second elastic portion 402; the plurality of third elastic strips 306 together constitute the third elastic portion 303; and the plurality of fourth elastic strips 406 together constitute the fourth elastic portion 403.

[0056] Multiple first conductive strips 208 and multiple first elastic strips 305 correspond one-to-one, multiple second conductive strips 209 and multiple second elastic strips 405 correspond one-to-one, multiple third conductive strips 210 and multiple third elastic strips 306 correspond one-to-one, and multiple fourth conductive strips 211 and multiple fourth elastic strips 406 correspond one-to-one. The first elastic strip 305 abuts against the first conductive strip 208, the second elastic strip 405 abuts against the second conductive strip 209, the third elastic strip 306 abuts against the third conductive strip 210, and the fourth elastic strip 406 abuts against the fourth conductive strip 211, so that each first elastic strip 305 and second elastic strip 405 can maintain contact with the copper busbar 1, and each third elastic strip 306 and fourth elastic strip 406 can maintain contact with the male terminal, ensuring the reliability of conductivity.

[0057] In one embodiment, the fixing part 201 includes a fixing plate. The fixing plate is bent into a ring shape. The fixing plate is bent into a square ring shape to form the fixing part 201 of the conductive element 2. The fixing plate, the first conductive strip 208, the second conductive strip 209, the third conductive strip 210, and the fourth conductive strip 211 are integrally formed.

[0058] Furthermore, one end of the fixing plate is provided with a locking platform 213, and the other end of the fixing plate is provided with a locking groove 214. The locking platform 213 and the locking groove 214 engage to form a square ring-shaped fixing part 201. The first elastic element 3 and the second elastic element 4 are both stainless steel, and the conductive element 2 is copper. During production, the first elastic element 3, the second elastic element 4, and the conductive element 2 are first placed on the mold, and then riveted together.

[0059] Optionally, the distance between the first clamping part 202 and the second clamping part 203 gradually decreases and then gradually increases along the direction away from the fixing part 201, so that the copper busbar 1 can be inserted between the first clamping part 202 and the second clamping part 203, while making the first clamping part 202 and the second clamping part 203 have contacts that are close to the copper busbar 1, ensuring conductive connection.

[0060] Similarly, the distance between the third clamping part 204 and the fourth clamping part 205 gradually decreases and then gradually increases along the direction away from the fixing part 201, which facilitates the insertion of the male terminal between the first clamping part 202 and the second clamping part 203, while also ensuring that the first clamping part 202 and the second clamping part 203 have contacts that are close to the male terminal, thus ensuring a conductive connection.

[0061] In one embodiment, the copper busbar 1 has a plug-in portion 101 and a mounting portion 102. The mounting portion 102 has a mounting hole 103, and a first clamping portion 202 and a second clamping portion 203 are clamped together in the plug-in portion 101. The plug-in portion 101 is used to insert between the first clamping portion 202 and the second clamping portion 203. The mounting portion 102 is used to fix the copper busbar 1 in place, and the copper busbar 1 is fixed by threaded fasteners such as bolts passing through the mounting hole 103.

[0062] like Figure 5As shown, this embodiment also provides a terminal assembly, including a housing 8 and the aforementioned flat plug terminals. The housing 8 is a plastic shell for insulation. The housing 8 has a plug-in channel 801, a copper busbar 1 is installed on the housing 8, and a conductive element 2, a first elastic element 3, a second elastic element 4, and at least a portion of the copper busbar 1 are inserted into the plug-in channel 801. For example, the housing 8 has two plug-in channels 801, which are arranged alternately from left to right, and both plug-in channels 801 penetrate the housing 8 from top to bottom. There are two flat plug terminals. The mounting portions 102 of the copper busbar 1 of both flat plug terminals are installed at the bottom of the housing 8 by threaded fasteners. The plug-in portion 101 of the copper busbar 1, the conductive element 2, the first elastic element 3, and the second elastic element 4 are all inserted into the plug-in channel 801, and finally, the male terminal can be inserted from top to bottom between the first clamping portion 202 and the second clamping portion 203 in the plug-in channel 801. Because male terminals may have large dimensional tolerances after processing, they can easily lead to poor contact when connected to flat terminals. Therefore, in the production and assembly of the terminal assembly of this application, the insertion part 101 of the copper busbar 1, the conductive element 2, the first elastic element 3, and the second elastic element 4 are first installed into the insertion channel 801 of the housing 8. The mounting plate of the copper busbar 1 is fixed to the housing 8 through the mounting hole 103 and the engagement of the threaded fastener. The conductive element 2, the first elastic element 3, and the second elastic element 4 can swing slightly in the insertion channel 801 to compensate for the deviation between the male terminal and the flat terminal and improve the reliability of the contact.

[0063] The terminal assembly in this embodiment utilizes a movable plug-in structure. The flat plug terminal has a reliable, stable and controllable small displacement relative to the housing 8, reducing deviations caused by errors, improving reliability, and ensuring that it maintains good electrical connection performance and mechanical durability under various operating conditions.

[0064] This embodiment also provides a connector, including a male terminal and the terminal assembly described above. The male terminal is inserted into the insertion channel 801 and clamped between the third clamping part 204 and the fourth clamping part 205. The conductive strip of the male terminal is inserted from top to bottom into the insertion channel 801 and between the third clamping part 204 and the fourth clamping part 205. The third clamping part 204 and the fourth clamping part 205 elastically clamp the conductive strip of the male terminal under the action of the first elastic member 3 and the second elastic member 4.

[0065] This application can ensure good contact between the contacts of the flat terminal and the contacts of the male terminal and improve ease of use. When the flat terminal is assembled into a connector, it effectively increases the tolerance and mobility during connector assembly, and achieves better contact between the contacts of the flat terminal and the contacts of the male terminal, thereby improving the overall performance of the connector.

[0066] The flat terminal of this application has higher mobility, resulting in better blind mating performance during use and significantly improving connector assembly efficiency. The flat terminal of this application will not damage the surface of the male terminal, thus avoiding surface damage caused by friction and stress concentration. This ensures a stable and reliable connection between the flat terminal and the male terminal, meeting the mechanical life test requirements of the connector and guaranteeing long-term stable electrical connection performance and mechanical durability.

[0067] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A flat blade terminal characterized by comprising: include: Copper busbar (1); The conductive element (2) has a fixing part (201) and a first clamping part (202), a second clamping part (203), a third clamping part (204), and a fourth clamping part (205) all connected to the fixing part (201); The first elastic member (3) has a first connecting portion (301) installed on the fixing portion (201), a first elastic portion (302) and a third elastic portion (303) both connected to the first connecting portion (301); the first elastic portion (302) is connected to the first clamping portion (202), and the third elastic portion (303) is connected to the third clamping portion (204); The second elastic member (4) has a second connecting part (401) installed on the fixing part (201), a second elastic part (402) and a fourth elastic part (403) both connected to the second connecting part (401); the second elastic part (402) is connected to the second clamping part (203), and the fourth elastic part (403) is connected to the fourth clamping part (205); The first clamping part (202) and the second clamping part (203) are arranged at intervals and together clamp the copper busbar (1), and the third clamping part (204) and the fourth clamping part (205) are arranged at intervals and together are used to clamp external terminals.

2. The blade terminal according to claim 1, characterized by It also includes a first rivet (5) and a second rivet (6); the first connecting part (301) is riveted to the fixing part (201) by the first rivet (5), and the second connecting part (401) is riveted to the fixing part (201) by the second rivet (6).

3. The grommet terminal of claim 2 wherein, The first connecting part (301) is provided with a first positioning strip (304), the second connecting part (401) is provided with a second positioning strip (404), and the fixing part (201) is provided with a first positioning groove (206) and a second positioning groove (207). The first positioning strip (304) is engaged with the first positioning groove (206), and the second positioning strip (404) is engaged with the second positioning groove (207).

4. The blade terminal according to any one of claims 1 to 3, characterized by The first clamping part (202) includes a plurality of first conductive strips (208) spaced apart from the fixing part (201), the second clamping part (203) includes a plurality of second conductive strips (209) spaced apart from the fixing part (201), the third clamping part (204) includes a plurality of third conductive strips (210) spaced apart from the fixing part (201), and the fourth clamping part (205) includes a plurality of fourth conductive strips (211) spaced apart from the fixing part (201). The first elastic part (302) comprises a plurality of first elastic strips (305) arranged at intervals on the first connecting part (301), the second elastic part (402) comprises a plurality of second elastic strips (405) arranged at intervals on the second connecting part (401), the third elastic part (303) comprises a plurality of third elastic strips (306) arranged at intervals on the first connecting part (301), and the fourth elastic part (403) comprises a plurality of fourth elastic strips (406) arranged at intervals on the second connecting part (401). The first elastic strip (305) is in abutment with the first conductive strip (208), the second elastic strip (405) is in abutment with the second conductive strip (209), the third elastic strip (306) is in abutment with the third conductive strip (210), and the fourth elastic strip (406) is in abutment with the fourth conductive strip (211).

5. The grommet terminal according to any one of claims 1 to 3, characterized by The fixing part (201) comprises a fixing plate, the fixing plate is arranged in a ring shape by bending, one end of the fixing plate is provided with a clamping table (213), the other end of the fixing plate is provided with a clamping groove (214), and the clamping table (213) is clamped with the clamping groove (214).

6. The grommet terminal according to any one of claims 1 to 3, characterized by The distance between the first clamping part (202) and the second clamping part (203) gradually decreases first and then gradually increases along the direction away from the fixing part (201).

7. The grommet terminal according to any one of claims 1 to 3, characterized by The distance between the third clamping part (204) and the fourth clamping part (205) gradually decreases first and then gradually increases along the direction away from the fixing part (201).

8. The grommet terminal according to any one of claims 1 to 3, characterized by The copper bar (1) has a plug-in part (101) and a mounting part (102), the mounting part (102) is provided with a mounting hole (103), and the first clamping part (202) and the second clamping part (203) are clamped together on the plug-in part (101).

9. A terminal assembly characterized by, The flat plug-in terminal comprises a housing (8) and the flat plug-in terminal of any one of claims 1 to 8, the housing (8) is provided with a plug-in channel (801), the copper bar (1) is mounted on the housing (8), the conductive part (2), the first elastic part (3), the second elastic part (4), and at least part of the copper bar (1) are inserted into the plug-in channel (801).

10. A connector characterized by comprising: The terminal assembly comprises a male terminal and the terminal assembly of claim 9, the male terminal is inserted into the plug-in channel (801) and clamped between the third clamping part (204) and the fourth clamping part (205). The terminal assembly comprises a male terminal and the terminal assembly of claim 9, the male terminal is inserted into the plug-in channel (801) and clamped between the third clamping part (204) and the fourth clamping part (205).

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