Terminal assembly and connector

Abstract

The utility model belongs to the technical field of connectors, and particularly relates to a terminal assembly and a connector, the terminal assembly comprises a female end terminal, the female end terminal comprises a housing and an elastic sheet used for being electrically connected with an electrical member, the housing comprises an installation part and an external connection part used for being electrically connected with the electrical member, the installation part is provided with an installation cavity, and the external connection part is provided with a through hole. The elastic piece comprises a conductive piece layer, the conductive piece layer comprises a first side edge, a second side edge and a plurality of piece bodies, the piece bodies are rectangular, one ends of the piece bodies in the length direction are connected with the first side edge, the other ends of the piece bodies in the length direction are connected with the second side edge, the piece bodies are arranged at intervals in the length direction of the conductive piece layer, and the elastic piece is installed in the installation cavity and the piece bodies. The sheet body close to the connection position of the installation part and the external connection part is an inner side sheet body, the sheet body close to the side, away from the external connection part, of the installation part is an outer side sheet body, and the width of the inner side sheet body is larger than that of the outer side sheet body. And the temperature rise of the inner side sheet body can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of connectors, and in particular relates to a terminal assembly and a connector. Background Art

[0002] The main function of the connector is to build a bridge of communication between blocked or isolated circuits within the circuit, so that the current can flow and achieve the intended function.

[0003] An existing connector includes a male end component and a female end component. The male end component includes a pin and a male end shell. One end of the pin is installed on the male end shell, and the other end is exposed from the male end shell. The female end component includes a female end shell, a terminal shell and a spring. The terminal shell is installed in the female end shell. The terminal shell includes a connected mounting part and an external connection part. The mounting part is provided with a mounting cavity. The spring is installed in the mounting cavity. The pin is inserted in the mounting cavity and contacts one side of the spring, and the other side of the spring contacts the cavity wall of the mounting cavity. The current enters the female end component from the upstream electrical component of the circuit through the pin, and then flows to the external connection part through the spring and the terminal shell, and is transmitted from the external connection part to the downstream electrical component of the circuit.

[0004] In existing connectors, the current path at the junction of the external connection part and the mounting part is smaller than the current path on the side of the mounting part away from the external connection part. Therefore, the current is concentrated on the spring clip at the junction of the external connection part and the mounting part, causing the spring clip at this part to heat up too much, affecting the current carrying capacity of the spring clip. Summary of the Invention

[0005] The technical problem to be solved by the present invention is: in view of the problem in existing connectors that current is concentrated on the spring at the junction of the external connection part and the mounting part, resulting in excessive temperature rise of the spring at this part, a terminal assembly and a connector are provided.

[0006] To solve the above technical problems, on the one hand, an embodiment of the present utility model provides a terminal assembly, including a female terminal, the female terminal including a housing and a spring for electrically connecting to an electrical component, the housing including a connected mounting portion and an external connection portion for electrically connecting to the electrical component, the mounting portion being provided with a mounting cavity, the spring including a conductive sheet layer, the conductive sheet layer including a first side, a second side and a plurality of sheets, the sheets being rectangular, one end of the sheet in the longitudinal direction being connected to the first side, the other end of the sheet in the longitudinal direction being connected to the second side, and the plurality of sheets being arranged at intervals along the longitudinal direction of the conductive sheet layer;

[0007] The spring sheet is installed in the installation cavity. Among the multiple sheets, the sheet close to the connection position of the installation part and the external connection part is the inner sheet, and the sheet close to the side of the installation part away from the external connection part is the outer sheet. The width of the inner sheet is greater than the width of the outer sheet.

[0008] Optionally, among the plurality of sheets, the width gradually decreases from the innermost sheet to the outermost sheet.

[0009] Optionally, a male terminal is further included, and a first opening connected to the mounting cavity is provided at a portion of the mounting portion close to the second side edge. The male terminal is plugged into the mounting cavity through the first opening, and one side of the male terminal in the thickness direction abuts against one side of the sheet in the thickness direction. The male terminal is used to electrically connect to the electrical component.

[0010] Optionally, the sheet body includes a recessed portion recessed toward the cavity wall of the mounting cavity and a raised portion raised away from the cavity wall of the mounting cavity, the recessed portion abuts against the cavity wall of the mounting cavity, and the raised portion abuts against the male terminal.

[0011] Optionally, there are two conductive sheet layers, the first sides of the two conductive sheet layers are connected, the second sides of the two conductive sheet layers are spaced apart, and the male terminal is inserted between the two conductive sheet layers.

[0012] Optionally, the elastic sheet further includes a supporting sheet, the supporting sheet is electrically connected between the two first side edges, and the supporting sheet is used to be supported between the two first side edges.

[0013] Optionally, the support piece includes a first connecting portion, a supporting portion and a second connecting portion connected to each other, the first connecting portion is horizontally connected to one of the two first side edges, the second connecting portion is horizontally connected to the other of the two first side edges, the first connecting portion is vertically connected to the supporting portion, and the second connecting portion is vertically connected to the supporting portion.

[0014] Optionally, the length of the support portion is consistent with the width of the first opening.

[0015] Optionally, a second opening communicating with the mounting cavity is provided at a portion of the mounting portion close to the first side edge, the second opening being arranged opposite to the first opening, and the second opening is used for allowing the elastic sheet to be installed into the mounting cavity.

[0016] According to the terminal assembly of the embodiment of the present invention, the sheet close to the connecting position of the mounting portion and the external connecting portion is the inner sheet, and the sheet close to the side of the mounting portion away from the external connecting portion is the outer sheet. The current path at the connecting position of the mounting portion and the external connecting portion is smaller than the current path on the side of the mounting portion away from the external connecting portion. The current is concentrated on the inner sheet. Compared with the prior art, the width of the inner sheet is greater than the width of the outer sheet, so that the resistance of the inner sheet is reduced, which can reduce the temperature rise of the inner sheet. In addition, the larger width of the inner sheet can also increase the heat dissipation area of the inner sheet, further reducing the temperature rise of the inner sheet.

[0017] On the other hand, an embodiment of the present invention provides a connector, comprising a housing and the above-mentioned terminal assembly, wherein the terminal assembly is installed in the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a terminal assembly provided in one embodiment of the present utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the decomposition;

[0020] Figure 3 for Figure 1 Schematic diagram of the structure of the shrapnel.

[0021] The figure numbers in the specification are as follows: 1. male terminal; 2. shell; 3. external connection part; 4. mounting part; 5. mounting cavity; 6. first opening; 7. second opening; 8. spring; 9. conductive sheet; 10. sheet; 11. outermost sheet; 12. innermost sheet; 13. recessed part; 14. raised part; 15. second side; 16. first side; 17. supporting sheet; 18. first connecting part; 19. second connecting part; 20. supporting part. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] like Figures 1 to 3As shown, an embodiment of the present invention provides a terminal assembly, including a female terminal, the female terminal including a shell 2 and a spring 8 for electrically connecting to an electrical component, the shell 2 including a connected mounting portion 4 and an external connection portion 3 for electrically connecting to an electrical component, the mounting portion 4 is provided with a mounting cavity 5, the spring 8 includes a conductive sheet layer 9, the conductive sheet layer 9 includes a first side 16, a second side 15 and a plurality of sheets 10, the sheet 10 is rectangular, one end of the sheet 10 in the longitudinal direction is connected to the first side 16, the other end of the sheet 10 in the longitudinal direction is connected to the second side 15, and the plurality of sheets 10 are arranged at intervals along the longitudinal direction of the conductive sheet layer 9.

[0024] The spring piece 8 is installed in the installation cavity 5. Among the multiple sheets 10, the sheet 10 close to the connection position of the installation part 4 and the external part 3 is the inner sheet, and the sheet 10 close to the installation part 4 and away from the external part 3 is the outer sheet. The width of the inner sheet is greater than the width of the outer sheet.

[0025] Specifically, the sheet 10 close to the connection position of the mounting portion 4 and the external connection portion 3 is the inner sheet, and the sheet 10 close to the mounting portion 4 on the side away from the external connection portion 3 is the outer sheet. The current path at the connection position of the mounting portion 4 and the external connection portion 3 is smaller than the current path on the side of the mounting portion 4 away from the external connection portion 3. The current is concentrated on the inner sheet. The width of the inner sheet is greater than the width of the outer sheet, so that the resistance of the inner sheet 10 is reduced, which can reduce the temperature rise of the inner sheet. In addition, the larger width of the inner sheet can also increase the heat dissipation area of the inner sheet, further reducing the temperature rise of the inner sheet.

[0026] The spring clip 8 is connected to the electrical component in the circuit upstream of the connector, so that the current is transferred from the spring clip 8 to the mounting portion 4, and then from the mounting portion 4 to the external connection portion 3. The external connection portion 3 is electrically connected to the electrical component in the circuit downstream of the connector to transfer the current to the electrical component, thereby connecting the two electrical components upstream and downstream of the connector in the circuit.

[0027] In one embodiment, the width of the plurality of sheets 10 gradually decreases from the innermost sheet 12 to the outermost sheet 11. Specifically, the innermost sheet 12 refers to the sheet 10 closest to the external portion 3 among the plurality of sheets 10, and the outermost sheet 11 refers to the sheet 10 farthest from the external portion 3 among the plurality of sheets 10. The gradual decrease in width from the innermost sheet 12 to the outermost sheet 11 facilitates design and manufacturing, and can also relatively gradually reduce the resistance of the spring 8 to prevent current accumulation.

[0028] In one embodiment, the terminal assembly also includes a male terminal 1, and a first opening 6 connected to the mounting cavity 5 is provided at a position of the mounting portion 4 near the second side 15. The male terminal 1 is plugged into the mounting cavity 5 through the first opening 6, and one side of the male terminal 1 in the thickness direction abuts against one side of the sheet 10 in the thickness direction. The male terminal 1 is used to be electrically connected to an electrical component.

[0029] Specifically, a first opening 6 is provided at a portion of the mounting portion 4 near the first side 16, and the first opening 6 is connected to the mounting cavity 5. The male terminal 1 is a rectangular structure, and one end of the male terminal 1 is inserted into the mounting cavity 5 from the first opening 6, and the other end of the male terminal 1 is exposed from the mounting portion 4, and is used to electrically connect with an electrical component in the circuit that inputs current to the connector. One side of the thickness direction of the male terminal 1 inserted into the mounting cavity 5 abuts against the thickness direction of the sheet body 10, thereby realizing the electrical connection between the male terminal 1 and the spring clip 8, so that the current flows from the male terminal 1 to the spring clip 8, and then is transmitted from the spring clip 8 to the mounting portion 4, and then is transmitted from the mounting portion 4 to the external connection portion 3. The external connection portion 3 is electrically connected to the electrical component in the circuit that is downstream of the connector to transmit the current to the electrical component, thereby connecting the two electrical component points upstream and downstream of the connector in the circuit.

[0030] In one embodiment, the sheet body 10 includes a recessed portion 13 recessed toward the cavity wall of the mounting cavity 5 and a raised portion 14 raised away from the cavity wall of the mounting cavity 5 , the recessed portion 13 abuts against the cavity wall of the mounting cavity 5 , and the raised portion 14 abuts against the male terminal 1 .

[0031] Specifically, the sheet body 10 is provided with a plurality of recessed portions 13 and a plurality of raised portions 14, and the recessed portions 13 and the raised portions 14 are arranged alternately, which can improve the contact strength between the side of the sheet body 10 facing the cavity wall of the mounting cavity 5 and the cavity wall, improve the contact strength between the side of the sheet body 10 facing away from the cavity wall and the male terminal 1, and improve the electrical connection strength between the sheet body 10 and the male terminal 1 and the mounting portion 4 to avoid short circuit.

[0032] In one embodiment, there are two conductive sheet layers 9 , the first sides 16 of the two conductive sheet layers 9 are connected, the second sides 15 of the two conductive sheet layers 9 are spaced apart, and the male terminal 1 is inserted between the two conductive sheet layers 9 .

[0033] Specifically, the two conductive sheet layers 9 are arranged opposite to each other, the first side edges 16 of the two conductive sheet layers 9 are connected, the second side edges 15 of the two conductive sheet layers 9 are arranged at intervals, and the male terminal 1 is inserted between the two conductive sheet layers 9. The two side surfaces in the thickness direction of the male terminal 1 are in contact with the sheet bodies 10 of the two conductive sheet layers 9 respectively, which can increase the contact area between the spring piece 8 and the male terminal 1 and improve the current flow capacity between the spring piece 8 and the male terminal 1.

[0034] In one embodiment, the spring piece 8 further includes a support piece 17, which is electrically connected between the two first side edges 16 and is used to support the two first side edges 16. Specifically, the support piece 17 is connected between the two first side pieces to separate the two first side edges 16, thereby allowing a certain gap to be formed between the two conductive sheet layers 9 to facilitate the insertion of the male terminal 1.

[0035] In one embodiment, the support piece 17 includes a first connecting portion 18, a supporting portion 20 and a second connecting portion 19, wherein the first connecting portion 18 is horizontally connected to one of the two first side edges 16, the second connecting portion 19 is horizontally connected to the other of the two first side edges 16, the first connecting portion 18 is vertically connected to the supporting portion 20, and the second connecting portion 19 is vertically connected to the supporting portion 20.

[0036] Specifically, the first connecting portion 18 is horizontally connected to one of the two first side edges 16, the second connecting portion 19 is horizontally connected to the other of the two first side edges 16, and the support portion 20 is vertically connected between the first connecting portion 18 and the second connecting portion 19, which is convenient for setting and manufacturing, and can also increase the flow area between the first side edge 16 and the mounting portion 4.

[0037] In one embodiment, the length of the support portion 20 is consistent with the width of the first opening 6. Specifically, the length of the support portion 20 is consistent with the width of the first opening 6, and the support portion 20 is aligned with the first opening 6, so that the first opening 6 can easily guide the male terminal 1 to be inserted into the gap between the two conductive sheet layers 9, thereby facilitating plugging.

[0038] In one embodiment, the mounting portion 4 is provided with a second opening 7 connected to the mounting cavity 5 near the first side 16 . The second opening 7 is arranged opposite to the first opening 6 . The second opening 7 is used for allowing the spring 8 to be installed in the mounting cavity 5 .

[0039] Specifically, a second opening 7 connected to the mounting cavity 5 is provided at a portion of the mounting portion 4 near the first side edge 16. The second opening 7 is arranged opposite to the first opening 6. The second opening 7 is used for the spring clip 8 to be loaded into the mounting cavity 5, providing an entrance for the spring clip 8 to enter the mounting cavity 5, facilitating the loading of the spring clip 8 into the mounting cavity 5 and facilitating the disassembly and assembly of the spring clip 8.

[0040] The working principle of the terminal assembly of the embodiment of the present invention is as follows: the end of the male terminal 1 exposed to the mounting part 4 is electrically connected to the electrical component in the circuit that inputs current to the connector, so that the current flows from the male terminal 1 to the spring piece 8, and then is transferred by the spring piece 8 to the mounting part 4, and then is transferred by the mounting part 4 to the external connection part 3. The external connection part 3 is electrically connected to the electrical component in the circuit that is downstream of the connector to transfer the current to the electrical component, thereby connecting the two electrical component points upstream and downstream of the connector in the circuit, wherein the sheet 10 close to the joint position of the mounting part 4 and the external connection part 3 is the inner sheet, and the sheet 10 close to the side of the mounting part 4 away from the external connection part 3 is the outer sheet. The current path at the joint position of the mounting part 4 and the external connection part 3 is smaller than the current path on the side of the mounting part 4 away from the external connection part 3. The current is concentrated on the inner sheet. The width of the inner sheet is greater than the width of the outer sheet, so that the resistance of the inner sheet is reduced, thereby reducing the temperature rise of the inner sheet.

[0041] According to the terminal assembly of the embodiment of the present invention, the sheet 10 close to the connection position of the mounting portion 4 and the external connection portion 3 is the inner sheet, and the sheet 10 close to the mounting portion 4 on the side away from the external connection portion 3 is the outer sheet. The current path at the connection position of the mounting portion 4 and the external connection portion 3 is smaller than the current path on the side of the mounting portion 4 away from the external connection portion 3. The current is concentrated on the inner sheet. The width of the inner sheet is greater than the width of the outer sheet, so that the resistance of the inner sheet is reduced, which can reduce the temperature rise of the inner sheet. In addition, the larger width of the inner sheet can also increase the heat dissipation area of the inner sheet, further reducing the temperature rise of the inner sheet.

[0042] In addition, an embodiment of the present invention further provides a connector, comprising a housing and the above-mentioned terminal assembly, wherein the terminal assembly is installed in the housing.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A terminal assembly, characterized in that: The invention comprises a female terminal, wherein the female terminal comprises a housing (2) and a spring (8) for electrically connecting to an electrical component, the housing (2) comprises a connected mounting portion (4) and an external connection portion (3) for electrically connecting to the electrical component, the mounting portion (4) is provided with a mounting cavity (5), the spring (8) comprises a conductive sheet (9), the conductive sheet (9) comprises a first side (16), a second side (15) and a plurality of sheets (10), the sheets (10) are rectangular, one end of the sheet (10) in the longitudinal direction is connected to the first side (16), the other end of the sheet (10) in the longitudinal direction is connected to the second side (15), and the plurality of sheets (10) are arranged at intervals along the longitudinal direction of the conductive sheet (9); The spring piece (8) is installed in the installation cavity (5). Among the plurality of sheets (10), the sheet (10) close to the connection position between the installation portion (4) and the external connection portion (3) is an inner sheet, and the sheet (10) close to the installation portion (4) and away from the external connection portion (3) is an outer sheet. The width of the inner sheet is greater than the width of the outer sheet.

2. The terminal assembly according to claim 1, wherein: Among the plurality of sheets (10), the width gradually decreases from the innermost sheet (12) to the outermost sheet (11).

3. The terminal assembly according to claim 2, wherein: It also includes a male terminal (1), wherein a first opening (6) communicating with the mounting cavity (5) is provided at a portion of the mounting portion (4) close to the second side edge (15), the male terminal (1) is plugged into the mounting cavity (5) via the first opening (6), one side of the male terminal (1) in the thickness direction abuts against one side of the sheet (10) in the thickness direction, and the male terminal (1) is used for electrically connecting to an electrical component.

4. The terminal assembly according to claim 3, wherein: The sheet body (10) comprises a recessed portion (13) recessed toward the cavity wall of the installation cavity (5) and a raised portion (14) raised away from the cavity wall of the installation cavity (5); the recessed portion (13) abuts against the cavity wall of the installation cavity (5), and the raised portion (14) abuts against the male terminal (1).

5. The terminal assembly according to claim 4, wherein: The conductive sheet layers (9) are provided with two, the first side edges (16) of the two conductive sheet layers (9) are connected, the second side edges (15) of the two conductive sheet layers (9) are spaced apart, and the male terminal (1) is plugged between the two conductive sheet layers (9).

6. The terminal assembly according to claim 5, characterized in that The elastic sheet (8) further includes a support sheet (17), the support sheet being electrically connected between the two first side edges (16), and the support sheet being used to be supported between the two first side edges (16).

7. The terminal assembly according to claim 6, wherein: The support sheet (17) includes a first connecting portion (18), a supporting portion (20), and a second connecting portion (19) connected to each other, wherein the first connecting portion (18) is horizontally connected to one of the two first side edges (16), the second connecting portion (19) is horizontally connected to the other of the two first side edges (16), the first connecting portion (18) is vertically connected to the supporting portion (20), and the second connecting portion (19) is vertically connected to the supporting portion (20).

8. The terminal assembly according to claim 7, wherein: The length of the support portion (20) is consistent with the width of the first opening (6).

9. The terminal assembly according to claim 8, wherein: A second opening (7) communicating with the mounting cavity (5) is provided at a portion of the mounting portion (4) close to the first side edge (16); the second opening (7) is arranged opposite to the first opening (6); and the second opening (7) is used for allowing the spring (8) to be installed in the mounting cavity (5).

10. A connector, characterized in that: It comprises a housing and the terminal assembly according to any one of claims 1 to 9, wherein the terminal assembly is installed in the housing.

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