CN117039486A - Composite terminal for high-voltage connection - Google Patents

Composite terminal for high-voltage connection Download PDF

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Publication number
CN117039486A
CN117039486A CN202310772252.5A CN202310772252A CN117039486A CN 117039486 A CN117039486 A CN 117039486A CN 202310772252 A CN202310772252 A CN 202310772252A CN 117039486 A CN117039486 A CN 117039486A
Authority
CN
China
Prior art keywords
terminal
terminal body
hole
elastic sheet
voltage connection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310772252.5A
Other languages
Chinese (zh)
Inventor
成三荣
金成成
宋营
韦思亮
季春城
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kunshan Zexuan Automotive Electrical Appliances Co ltd
Kunshan Huguang Auto Harness Co ltd
Original Assignee
Kunshan Zexuan Automotive Electrical Appliances Co ltd
Kunshan Huguang Auto Harness Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kunshan Zexuan Automotive Electrical Appliances Co ltd, Kunshan Huguang Auto Harness Co ltd filed Critical Kunshan Zexuan Automotive Electrical Appliances Co ltd
Priority to CN202310772252.5A priority Critical patent/CN117039486A/en
Publication of CN117039486A publication Critical patent/CN117039486A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02Contact members
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02Contact members
    • H01R13/04Pins or blades for co-operation with sockets
    • H01R13/05Resilient pins or blades
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40Securing contact members in or to a base or case; Insulating of contact members

Abstract

The invention discloses a composite terminal for high-voltage connection, which comprises a terminal body, wherein a connecting line part is arranged at the tail end of the terminal body, a first elastic sheet is inserted into the upper part of the terminal body, a second elastic sheet is arranged on the lower part of the terminal body, and a connecting component is fixedly arranged between the first elastic sheet and the second elastic sheet. The composite terminal for high-voltage connection can solve the technical problems of poor current carrying capacity and unstable conductive performance of the terminal.

Description

Composite terminal for high-voltage connection
Technical Field
The invention relates to a composite terminal for high-voltage connection, and belongs to the technical field of terminal connection structures.
Background
The terminal body of the existing connector generally comprises a plug-in connection part and a connecting wire part electrically connected with the plug-in connection part, and the connecting wire part and the wire are realized through an ultrasonic welding technology. When the electric connector is used, the external terminal is spliced with the splicing part to realize electric connection, the splicing part comprises a first contact surface and a second contact surface, and the external terminal can be inserted into a gap between the first contact surface and the second contact surface and is respectively and directly electrically connected with the first contact surface and the second contact surface on the shortest conduction path. The terminal body is directly used as the first contact surface and the second contact surface, the contact elasticity is relatively small, the yield strength of the copper terminal body is small in the practical use environment of the connector, the elastic deformation is easy to occur, and the current carrying capacity performance and the conductivity stability of the connector are affected.
Disclosure of Invention
The invention aims to solve the technical problems of poor current carrying capacity and unstable conductive performance of a terminal by overcoming the defects of the prior art and providing a composite terminal for high-voltage connection.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a compound terminal for high-voltage connection, includes the terminal body, the tail end of terminal body is provided with line portion, terminal body upper portion grafting is provided with first shell fragment, be provided with the second shell fragment above the terminal body lower part, first shell fragment with be used for fixed connection subassembly between the second shell fragment.
The terminal comprises a terminal body, and is characterized in that a U-shaped limiting groove is formed in the front end of the terminal body, clamping grooves which are in sliding contact with the two sides of the terminal body are formed in the two sides of the first elastic piece, two limiting buckles are arranged at the front end of the first elastic piece, and a first contact elastic piece is arranged below the first elastic piece.
The terminal body is provided with a first rectangular through hole and a second rectangular through hole, and the first elastic sheet is provided with a first limiting elastic sheet and a second limiting elastic sheet which are respectively clamped into the first rectangular through hole and the second rectangular through hole.
The first through hole and the second through hole are formed in the second elastic piece, a first boss and a second boss are arranged on the lower portion of the terminal body, the first boss and the second boss are respectively in transition fit with the first through hole and the second through hole, and the second elastic piece is provided with a second contact elastic piece.
The second contact spring plates are in three rows, and the first through holes and the second through holes are respectively positioned between two adjacent rows of the second contact spring plates.
The terminal body is made of copper.
The first elastic sheet is made of stainless steel, copper alloy or carbon steel.
The second elastic sheet is made of high-conductivity copper.
The invention has the beneficial effects that: according to the composite terminal for high-voltage connection, the first elastic sheet is used for being in butt joint with the contact surface of the terminal body, the butt joint of the first elastic sheet and the composite terminal provides stable and reliable forward force for the integral structure, on one hand, the large current carrying performance of the composite terminal can be met, on the other hand, the requirements of the connector on elastic strength and tolerance of the elastic sheet in the actual use environment and the butt joint assembly inserting and pulling process can be met to a greater extent, the arrangement of the plurality of contact elastic sheets on the surface of the second elastic sheet increases the contact points of the butt joint assembly and the composite terminal inserting part, and the current carrying capacity of the integral connection structure is improved.
Drawings
Fig. 1 is a schematic perspective view of a composite terminal for high voltage connection according to the present invention;
FIG. 2 is a schematic perspective view of FIG. 1 from another perspective;
fig. 3 is a schematic perspective view of the terminal body of fig. 2;
FIG. 4 is a schematic perspective view of the first spring in FIG. 2;
FIG. 5 is a schematic perspective view of FIG. 4 at another view angle;
fig. 6 is a schematic perspective view of the second spring in fig. 2.
Reference numerals in the drawings are as follows: 1-a terminal body; 2-connecting wire parts; 3-a first elastic sheet; 4-a second elastic piece; 11-a first rectangular through hole; 12-a second rectangular through hole; 13-U-shaped limit grooves; 21-a first boss; 22-a second boss; 31-a first limiting elastic piece; 32-a second limiting elastic piece; 33-limit buckles; 34-a first contact spring; 35-clamping grooves; 41-a first through hole; 42-a second through hole; 43-second contact spring.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and the following examples are only for more clearly illustrating the technical aspects of the present invention, and are not to be construed as limiting the scope of the present invention.
As shown in fig. 1 and 2, the invention discloses a composite terminal for high-voltage connection, which comprises a terminal body 1, wherein the terminal body 1 is made of copper, and is made of copper with high conductivity, so that the bearing and guiding capacity of the terminal to current is improved. The tail end of the terminal body 1 is provided with a connecting wire part 2, the connecting wire part 2 is the tail end of the terminal body, the connecting wire part 2 is a plane and the plug-in terminal body 1 as a whole and is used for being electrically connected with a wire core wire, and the welding connection is realized with the wire core wire through an ultrasonic welding technology, so that the stability of the structure is improved. The upper portion of the terminal body 1 is inserted and provided with the first elastic piece 3, the upper surface of the lower portion of the terminal body 1 is provided with the second elastic piece 4, the stainless steel elastic piece 3 and the second elastic piece 4 are respectively used as a first inserting portion and a second inserting portion, the terminal body 1 is of an integral structure, the inserting portions are not required to be fully wrapped, the processing is convenient, the materials are saved, and the structural stability is strong. The first elastic sheet 3 and the second elastic sheet 4 enclose together to form a plugging slot for plugging the butt-fit connection assembly 9, the plugging slot is used for fixing the connection assembly 9, the connection assembly 9 is a copper plug sheet, the copper plug sheet is inserted into the plugging slot of the composite terminal, the upper surface and the lower surface of the plug sheet are respectively contacted with the first plugging part and the second plugging part of the plugging part, and the arrangement of the first elastic sheet 3, the second elastic sheet 4 and the limiting structure enables the connection structure to be stable and reliable.
As shown in fig. 3 to 5, the first spring plate 3 is inserted into the terminal body 1, and the first spring plate 3 is made of stainless steel, copper alloy or carbon steel, preferably stainless steel in this embodiment. The first elastic sheet 3 has high yield strength, and the elastic sheet made of stainless steel is more resistant and is not easy to deform under the same temperature environment. The plug groove formed by the first elastic sheet 3 is connected with the terminal body 1 in a plug manner, so that the relative positions of the plug groove and the terminal body can be well fixed, and a stable and reliable large forward force is provided for the relative stability of the structure. Specifically, the first elastic sheet 3 includes an upper contact surface and a lower contact surface, and the upper contact surface and the lower contact surface are in clearance fit and jointly enclose to form a second plugging slot for plugging the terminal body 1. The upper contact surface is a plane, contacts with the first contact surface A of the terminal body 1, and the lower contact surface is an unconnected symmetrical surface. Two limit buckles 33 are arranged on the upper contact surface; the middle part of the lower contact surface is provided with a first contact spring piece 34, and the first contact spring piece 34 is contacted with the upper surface of the connecting component 9. The two sides of the first contact spring piece 34 are respectively provided with a limit buckle 33, and the two sides of the lower contact surface are clamping grooves 35 formed by bending back buckles from the upper contact surface. The terminal body 1 front end is provided with U type spacing groove 13, and draw-in groove 35 cooperates with two sand grip that U type spacing groove 13 corresponds to play the guide effect to the installation of stainless steel bullet 3, be convenient for first shell fragment 3 and terminal body 1 grafting counterpoint. The terminal body 1 is provided with a first rectangular through hole 11 and a second rectangular through hole 12, and a contact surface on the first elastic sheet 3 is provided with a first limit elastic sheet 31 and a second limit elastic sheet 32 which are respectively clamped into the first rectangular through hole 11 and the second rectangular through hole 12. The first elastic sheet 3 is connected with the first contact surface A of the terminal body 1 in a butt-inserting way along the clamping groove, and the limiting elastic sheet of the contact surface on the first elastic sheet 3 is penetrated and embedded into the through hole.
As shown in fig. 3 and 6, the second elastic piece 4 is fixed on the second contact surface B of the terminal body 1, and the material of the second elastic piece 4 is high-conductivity copper. Specifically, the second elastic sheet 4 is provided with a first through hole 41 and a second through hole 42, the connecting line part 2 is provided with a first boss 21 and a second boss 22, the first boss 21 and the second boss 22 are respectively in transition fit with the first through hole 41 and the second through hole 42, the transition fit means that when the through hole is assembled with the boss, clearance fit or interference fit is possible, and the tolerance zone of the through hole and the tolerance zone of the boss overlap each other. Therefore, the tolerance range of the boss and the through hole is further widened, and the requirement on processing precision is reduced. The second elastic sheet 4 is provided with a second contact elastic sheet 43, and the second contact elastic sheet 43 is contacted with the lower surface of the connecting component 9. The second contact spring pieces 43 are three rows, the first through holes 41 and the second through holes 42 are respectively located between two adjacent rows of the second contact spring pieces 43, and the three rows of the contact spring pieces are equally separated by the two through holes.
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.

Claims (8)

1. A composite terminal for high voltage connection, characterized by: the novel high-voltage power supply terminal comprises a terminal body (1), wherein a connecting wire part (2) is arranged at the tail end of the terminal body (1), a first elastic piece (3) is inserted into the upper part of the terminal body (1), a second elastic piece (4) is arranged on the lower part of the terminal body (1), and a fixed connection assembly (9) is arranged between the first elastic piece (3) and the second elastic piece (4).
2. A composite terminal for high voltage connection according to claim 1, wherein: the novel electric connector is characterized in that the front end of the terminal body (1) is provided with a U-shaped limiting groove (13), clamping grooves (35) which are in sliding contact with the two sides of the terminal body (1) are formed in the two sides of the first elastic sheet (3), two limiting buckles (33) are arranged at the front end of the first elastic sheet (3), and a first contact elastic sheet (34) is arranged below the first elastic sheet (3).
3. A composite terminal for high voltage connection according to claim 2, wherein: the terminal comprises a terminal body (1), and is characterized in that a first rectangular through hole (11) and a second rectangular through hole (12) are formed in the terminal body (1), and a first limiting elastic piece (31) and a second limiting elastic piece (32) which are respectively clamped into the first rectangular through hole (11) and the second rectangular through hole (12) are arranged on the first elastic piece (3).
4. A composite terminal for high voltage connection according to claim 1, wherein: first through-hole (41) and second through-hole (42) have been seted up on second shell fragment (4), be provided with first boss (21) and second boss (22) on the terminal body lower part, first boss (21) and second boss (22) respectively with first through-hole (41) and second through-hole (42) transition fit, be provided with second contact shell fragment (43) on second shell fragment (4).
5. A composite terminal for high voltage connection according to claim 4, wherein: the second contact spring pieces (43) are in three rows, and the first through holes (41) and the second through holes (42) are respectively positioned between two adjacent rows of the second contact spring pieces (43).
6. A composite terminal for high voltage connection according to claim 1, wherein: the terminal body (1) is made of copper.
7. A composite terminal for high voltage connection according to claim 1, wherein: the first elastic sheet (3) is made of stainless steel, copper alloy or carbon steel.
8. A composite terminal for high voltage connection according to claim 1, wherein: the second elastic sheet (4) is made of high-conductivity copper.
CN202310772252.5A 2023-06-28 2023-06-28 Composite terminal for high-voltage connection Pending CN117039486A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310772252.5A CN117039486A (en) 2023-06-28 2023-06-28 Composite terminal for high-voltage connection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310772252.5A CN117039486A (en) 2023-06-28 2023-06-28 Composite terminal for high-voltage connection

Publications (1)

Publication Number Publication Date
CN117039486A true CN117039486A (en) 2023-11-10

Family

ID=88641871

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310772252.5A Pending CN117039486A (en) 2023-06-28 2023-06-28 Composite terminal for high-voltage connection

Country Status (1)

Country Link
CN (1) CN117039486A (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120015549A1 (en) * 2009-01-22 2012-01-19 Bok-Hee Youn Clip-type elastic contact piece and shielded connector housing assembly having the same
US10389055B1 (en) * 2018-06-20 2019-08-20 Delphia Technologies, Llc Electrical connector assembly
CN212085278U (en) * 2020-06-22 2020-12-04 深圳尼索科连接技术有限公司 W-shaped elastic sheet and plug bush structure
CN112928515A (en) * 2019-12-06 2021-06-08 泰科电子(上海)有限公司 Electrical connector and electrical connector assembly
CN114069294A (en) * 2020-08-05 2022-02-18 安波福技术有限公司 Anti-friction/multi-contact terminal using knurling pattern
CN115347396A (en) * 2021-05-12 2022-11-15 安波福技术有限公司 High-voltage terminal rack
CN218005297U (en) * 2022-05-05 2022-12-09 苏州智绿环保科技有限公司 High current-carrying contact finger and connecting terminal
CN218770187U (en) * 2022-11-07 2023-03-28 深圳市创益通技术股份有限公司 Double-end hole socket connector with anti-collision and anti-falling elastic sheets
CN115986447A (en) * 2021-10-14 2023-04-18 现代自动车株式会社 Electric connection terminal for vehicle

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120015549A1 (en) * 2009-01-22 2012-01-19 Bok-Hee Youn Clip-type elastic contact piece and shielded connector housing assembly having the same
US10389055B1 (en) * 2018-06-20 2019-08-20 Delphia Technologies, Llc Electrical connector assembly
CN112928515A (en) * 2019-12-06 2021-06-08 泰科电子(上海)有限公司 Electrical connector and electrical connector assembly
CN212085278U (en) * 2020-06-22 2020-12-04 深圳尼索科连接技术有限公司 W-shaped elastic sheet and plug bush structure
CN114069294A (en) * 2020-08-05 2022-02-18 安波福技术有限公司 Anti-friction/multi-contact terminal using knurling pattern
CN115347396A (en) * 2021-05-12 2022-11-15 安波福技术有限公司 High-voltage terminal rack
CN115986447A (en) * 2021-10-14 2023-04-18 现代自动车株式会社 Electric connection terminal for vehicle
CN218005297U (en) * 2022-05-05 2022-12-09 苏州智绿环保科技有限公司 High current-carrying contact finger and connecting terminal
CN218770187U (en) * 2022-11-07 2023-03-28 深圳市创益通技术股份有限公司 Double-end hole socket connector with anti-collision and anti-falling elastic sheets

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