Electrical connection assembly, electrical connection product and connector

Abstract

The utility model discloses an electric connection assembly, an electric connection product and a connector. The electric connection assembly comprises an outer conductive shell and an inner conductive body. The outer conductive shell comprises an annular wall, which is provided with an upper periphery and a lower periphery which are axially opposite; the elastic part is connected with the upper periphery of the annular wall; and the connecting part is connected with the lower periphery of the annular wall. And the inner conductor is arranged in the outer conductive shell and is axially clamped between the elastic part and the connecting part. The outer diameter of the inner conductor is smaller than the inner diameter of the outer conductive shell, so that the inner conductor can float in the axial direction and the radial direction relative to the outer conductive shell under the condition that the inner conductor is kept in electric contact with the outer conductive shell. According to the utility model, the electric connection assembly not only can realize axial and radial floating electric contact at the same time, but also is very simple in structure and easy to manufacture.

Description

Technical Field

[0001] The utility model relates to an electric connection component, an electric connection product comprising the electric connection component and a connector comprising the electric connection component. Background Art

[0002] In the prior art, the conductive parts in the connector usually cannot float in both the axial and radial directions at the same time. Therefore, the conductive parts in the existing connector cannot absorb the axial and radial errors at the same time, and a special floating structure needs to be set on the insulating shell of the connector. These floating structures are usually complicated and increase the manufacturing cost. Utility Model Content

[0003] The purpose of the present invention is to solve at least one aspect of the above-mentioned problems and defects in the prior art.

[0004] According to one aspect of the utility model, an electrical connection assembly is provided. The electrical connection assembly comprises: an outer conductive shell and an inner conductor. The outer conductive shell comprises: an annular wall having an upper periphery and a lower periphery that are axially opposite; an elastic portion connected to the upper periphery of the annular wall; and a connecting portion connected to the lower periphery of the annular wall. The inner conductor is installed in the outer conductive shell and is axially clamped between the elastic portion and the connecting portion. The outer diameter of the inner conductor is smaller than the inner diameter of the outer conductive shell, so that the inner conductor can float axially and radially relative to the outer conductive shell while maintaining electrical contact with the outer conductive shell.

[0005] According to an exemplary embodiment of the utility model, an inner cavity allowing a mating plug to be inserted is formed in the inner conductor; the electrical connection assembly also includes an elastic contact piece, which is installed in the inner cavity of the inner conductor, and the elastic contact piece is used to electrically contact the mating plug inserted into the inner cavity, so that the mating plug can be electrically connected to the inner conductor via the elastic contact piece.

[0006] According to another exemplary embodiment of the utility model, the elastic portion of the outer conductive shell includes: a plurality of elastic arms spaced apart in the circumferential direction of the outer conductive shell, one end of the plurality of elastic arms being connected to the upper periphery of the annular wall and the other end being axially pressed against the inner conductor.

[0007] According to another exemplary embodiment of the utility model, the elastic arm includes: a first arm portion extending axially and having its lower end connected to the upper periphery of the annular wall; a second arm portion, which is arc-shaped and one end of which is connected to the upper end of the first arm portion; and a third arm portion, which is connected to the other end of the second arm portion and extends slightly downwardly toward the center of the outer conductive shell. The end of the third arm portion axially abuts against the inner conductor to electrically contact the inner conductor.

[0008] According to another exemplary embodiment of the utility model, the connection portion of the outer conductive shell includes: a plurality of connection pins, which are spaced apart in the circumferential direction of the outer conductive shell and axially abut against the inner conductor. The plurality of connection pins are connected to the lower periphery of the annular wall and extend radially toward the center of the outer conductive shell.

[0009] According to another exemplary embodiment of the utility model, a contact protrusion is formed on the top surface of the connecting pin, and the contact protrusion is in axial electrical contact with the internal conductor to be electrically connected to the internal conductor; the bottom surface of the connecting pin is suitable for being welded to a circuit board to be electrically connected to the circuit board.

[0010] According to another exemplary embodiment of the present invention, the inner conductor has a top surface and a bottom surface which are axially opposite to each other, and the elastic portion of the outer conductive shell axially abuts against the top surface of the inner conductor.

[0011] According to another exemplary embodiment of the utility model, the inner conductor includes an upper cylinder and a lower cylinder coaxially connected, the diameter of the upper cylinder is larger than the diameter of the lower cylinder, and the upper cylinder is installed in the outer conductive shell; the elastic portion and the connecting portion of the outer conductive shell are axially abutted against the top surface and the bottom surface of the upper cylinder respectively, so that the upper cylinder is axially clamped between the elastic portion and the connecting portion of the outer conductive shell.

[0012] According to another exemplary embodiment of the utility model, the bottom of the connecting portion of the outer conductive shell is suitable for being welded to a circuit board, and the lower cylinder of the inner conductor extends from the outer conductive shell and is suitable for passing through a mounting hole on the circuit board.

[0013] According to another exemplary embodiment of the utility model, the elastic contact piece includes: a C-shaped ring; and a plurality of elastic contact arms connected to the upper side of the C-shaped ring and spaced apart in the circumferential direction of the C-shaped ring, the plurality of elastic contact arms being used to electrically contact the outer peripheral surface of a mating plug inserted into the inner cavity of the inner conductor.

[0014] According to another exemplary embodiment of the utility model, the elastic contact piece also includes: a plurality of fixing feet connected to the lower side of the C-shaped ring and spaced apart in the circumferential direction of the C-shaped ring, a fixing groove is formed on the inner side of the lower end of the inner conductor, and the plurality of fixing feet are bent into an L-shape and inserted and fixed into the fixing groove.

[0015] According to another exemplary embodiment of the present invention, the ends of the plurality of elastic contact arms are bent into an inwardly convex arc shape for electrically contacting the outer peripheral surface of a mating plug inserted into the inner cavity of the inner conductor.

[0016] According to another exemplary embodiment of the utility model, a limiting flange is formed on the inner side of the upper end of the inner conductor, and the limiting flange is suitable for axially abutting against the ends of the multiple elastic contact arms to axially position the ends of the multiple elastic contact arms.

[0017] According to another exemplary embodiment of the present invention, the plurality of elastic contact arms extend obliquely toward the upper end and the center of the inner conductor, so that a predetermined angle is formed between the plurality of elastic contact arms and the inner circumferential surface of the inner conductor.

[0018] According to another exemplary embodiment of the present invention, the inner conductor is an integral machined part.

[0019] According to another exemplary embodiment of the present utility model, the outer conductive shell includes two half shells assembled together, and the half shells are one-piece stamping parts.

[0020] According to another exemplary embodiment of the utility model, the half shell includes a semi-annular wall, and the semi-annular walls of the two half shells are spliced ​​into the annular wall; a dovetail protrusion and a dovetail groove are respectively formed on the splicing ends of the two semi-annular walls, and the dovetail protrusion is engaged with the dovetail groove to splice the two semi-annular walls together.

[0021] According to another exemplary embodiment of the present utility model, the elastic contact piece is an integral stamping piece.

[0022] According to another aspect of the utility model, an electrical connection product is provided, comprising: a circuit board; and the aforementioned electrical connection assembly, wherein the connection portion of the outer conductive shell of the electrical connection assembly is welded to the circuit board.

[0023] According to another aspect of the utility model, a connector is provided, comprising: an insulating shell; and the aforementioned electrical connection assembly, which is installed in the insulating shell.

[0024] In the aforementioned various exemplary embodiments according to the present invention, the electrical connection assembly can not only realize axial and radial floating electrical contacts at the same time, but also has a very simple structure and is easy to manufacture.

[0025] Other objects and advantages of the present invention will become apparent from the following description of the present invention with reference to the accompanying drawings, which will help to provide a comprehensive understanding of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A three-dimensional schematic diagram showing an electrical connection assembly and a circuit board according to an exemplary embodiment of the utility model;

[0027] Figure 2 An axial cross-sectional view showing an electrical connection assembly and a circuit board according to an exemplary embodiment of the utility model;

[0028] Figure 3 An exploded schematic diagram showing an electrical connection assembly and a circuit board according to an exemplary embodiment of the utility model;

[0029] Figure 4 A three-dimensional schematic diagram showing an electrical connection assembly according to an exemplary embodiment of the utility model;

[0030] Figure 5 An exploded schematic diagram showing an electrical connection assembly according to an exemplary embodiment of the present utility model;

[0031] Figure 6 An axial cross-sectional view showing an electrical connection assembly according to an exemplary embodiment of the present utility model;

[0032] Figure 7 An axial cross-sectional view showing an outer conductive shell of an electrical connection assembly according to an exemplary embodiment of the present invention;

[0033] Figure 8 An axial cross-sectional view showing an inner conductor of an electrical connection assembly according to an exemplary embodiment of the present utility model;

[0034] Fig. 9 A three-dimensional schematic diagram showing an elastic contact member of an electrical connection assembly according to an exemplary embodiment of the utility model;

[0035] Fig.10 An axial cross-sectional view of an electrical connection assembly, a circuit board, and a mating plug according to an exemplary embodiment of the present invention is shown. DETAILED DESCRIPTION

[0036] The technical solution of the utility model is further specifically described below through examples and in combination with the accompanying drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the implementation mode of the utility model with reference to the accompanying drawings is intended to explain the overall utility model concept of the utility model, and should not be understood as a limitation of the utility model.

[0037] In addition, in the detailed description below, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the disclosed embodiments. However, it is apparent that one or more embodiments may be implemented without these specific details. In other cases, known structures and devices are embodied in a schematic manner to simplify the accompanying drawings.

[0038] According to an overall technical concept of the utility model, an electrical connection assembly is provided. The electrical connection assembly includes: an outer conductive shell and an inner conductor. The outer conductive shell includes: an annular wall having an upper periphery and a lower periphery that are axially opposite; an elastic portion connected to the upper periphery of the annular wall; and a connecting portion connected to the lower periphery of the annular wall. The inner conductor is installed in the outer conductive shell and is axially clamped between the elastic portion and the connecting portion. The outer diameter of the inner conductor is smaller than the inner diameter of the outer conductive shell, so that the inner conductor can float axially and radially relative to the outer conductive shell while maintaining electrical contact with the outer conductive shell.

[0039] According to another general technical concept of the utility model, an electrical connection product is provided, which includes: a circuit board; and the aforementioned electrical connection component, wherein the connection portion of the outer conductive shell of the electrical connection component is welded to the circuit board.

[0040] According to another general technical concept of the utility model, a connector is provided, which includes: an insulating shell; and the aforementioned electrical connection assembly installed in the insulating shell.

[0041] Figure 1 A three-dimensional schematic diagram showing an electrical connection assembly 1 and a circuit board 2 according to an exemplary embodiment of the utility model; Figure 2 An axial cross-sectional view showing an electrical connection assembly 1 and a circuit board 2 according to an exemplary embodiment of the utility model; Figure 3 An exploded schematic diagram showing an electrical connection assembly 1 and a circuit board 2 according to an exemplary embodiment of the utility model; Figure 4 A three-dimensional schematic diagram showing an electrical connection assembly 1 according to an exemplary embodiment of the utility model; Figure 5 An exploded schematic diagram showing an electrical connection assembly 1 according to an exemplary embodiment of the present utility model; Figure 6 An axial cross-sectional view showing an electrical connection assembly 1 according to an exemplary embodiment of the present utility model; Figure 7 An axial cross-sectional view showing an outer conductive shell 11 of an electrical connection assembly 1 according to an exemplary embodiment of the present utility model; Figure 8 An axial cross-sectional view showing an inner conductor 12 of an electrical connection assembly 1 according to an exemplary embodiment of the present utility model; Fig. 9 A three-dimensional schematic diagram showing an elastic contact member 13 of an electrical connection assembly 1 according to an exemplary embodiment of the utility model; Fig.10 An axial cross-sectional view of an electrical connection assembly 1 , a circuit board 2 , and a mating plug 3 according to an exemplary embodiment of the present utility model is shown.

[0042] like Figures 1 to 10As shown, in an exemplary embodiment of the utility model, an electrical connection assembly 1 is disclosed. The electrical connection assembly 1 includes: an outer conductive shell 11 and an inner conductor 12. The outer conductive shell 11 includes: an annular wall 110, an elastic portion 111 and a connecting portion 112. The annular wall 110 has an upper periphery and a lower periphery that are axially opposite. The elastic portion 111 is connected to the upper periphery of the annular wall 110. The connecting portion 112 is connected to the lower periphery of the annular wall 110. The inner conductor 12 is installed in the outer conductive shell 11 and is axially clamped between the elastic portion 111 and the connecting portion 112. The outer diameter of the inner conductor 12 is smaller than the inner diameter of the outer conductive shell 11, so that the inner conductor 12 can float axially and radially relative to the outer conductive shell 11 while maintaining electrical contact with the outer conductive shell 11.

[0043] like Figures 1 to 10 As shown, in the illustrated embodiment, an inner cavity 120 is formed in the inner conductor 12 to allow the mating plug 3 to be inserted. The electrical connection assembly 1 also includes an elastic contact 13, which is installed in the inner cavity 120 of the inner conductor 12. The elastic contact 13 is used to electrically contact the mating plug 3 inserted into the inner cavity 120, so that the mating plug 3 can be electrically connected to the inner conductor 12 via the elastic contact 13.

[0044] like Figures 1 to 10 As shown, in the illustrated embodiment, the elastic portion 111 of the outer conductive shell 11 includes a plurality of elastic arms 1110, and the plurality of elastic arms 1110 are spaced apart and distributed in the circumferential direction of the outer conductive shell 11. One end of the plurality of elastic arms 1110 is connected to the upper periphery of the annular wall 110, and the other end is axially pressed against the inner conductor 12.

[0045] like Figures 1 to 10 As shown, in the illustrated embodiment, the elastic arm 1110 includes: a first arm portion 111a, a second arm portion 111c and a third arm portion 111b. The first arm portion 111a extends axially and its lower end is connected to the upper periphery of the annular wall 110. The second arm portion 111c is arc-shaped and one end thereof is connected to the upper end of the first arm portion 111a. The third arm portion 111b is connected to the other end of the second arm portion 111c and extends slightly downwardly toward the center of the outer conductive shell 11. The end of the third arm portion 111b axially abuts against the inner conductor 12 to make electrical contact with the inner conductor 12.

[0046] like Figures 1 to 10 As shown, in the illustrated embodiment, the connecting portion 112 of the outer conductive shell 11 includes a plurality of connecting pins 1120, which are spaced apart in the circumferential direction of the outer conductive shell 11 and axially abut against the inner conductor 12. The plurality of connecting pins 1120 are connected to the lower periphery of the annular wall 110 and extend radially toward the center of the outer conductive shell 11.

[0047] like Figures 1 to 10As shown, in the illustrated embodiment, a contact protrusion 112a is formed on the top surface of the connecting pin 1120, and the contact protrusion 112a is in axial electrical contact with the inner conductor 12 to be electrically connected to the inner conductor 12. The bottom surface of the connecting pin 1120 is suitable for being soldered to the circuit board 2 to be electrically connected to the circuit board 2.

[0048] like Figures 1 to 10 As shown, in the illustrated embodiment, the inner conductor 12 has a top surface and a bottom surface that are axially opposite to each other, and the elastic portion 111 of the outer conductive shell 11 axially abuts against the top surface of the inner conductor 12 .

[0049] like Figures 1 to 10 As shown, in the illustrated embodiment, the inner conductor 12 includes an upper cylinder 121 and a lower cylinder 122 coaxially connected, the diameter of the upper cylinder 121 is larger than the diameter of the lower cylinder 122, and the upper cylinder 121 is installed in the outer conductive shell 11. The elastic portion 111 and the connecting portion 112 of the outer conductive shell 11 are axially abutted against the top surface and the bottom surface of the upper cylinder 121, respectively, so that the upper cylinder 121 is axially clamped between the elastic portion 111 and the connecting portion 112 of the outer conductive shell 11.

[0050] like Figures 1 to 10 As shown, in the illustrated embodiment, the bottom of the connecting portion 112 of the outer conductive shell 11 is suitable for being soldered to the circuit board 2, and the lower cylinder 122 of the inner conductor 12 extends from the outer conductive shell 11 and is suitable for passing through the mounting hole 201 on the circuit board 2.

[0051] like Figures 1 to 10 As shown, in the illustrated embodiment, the elastic contact member 13 includes: a C-shaped ring 130 and a plurality of elastic contact arms 131. The plurality of elastic contact arms 131 are connected to the upper side of the C-shaped ring 130 and are spaced apart in the circumferential direction of the C-shaped ring 130. The plurality of elastic contact arms 131 are used to electrically contact the outer peripheral surface of the mating plug 3 inserted into the inner cavity 120 of the inner conductor 12.

[0052] like Figures 1 to 10 As shown, in the illustrated embodiment, the elastic contact member 13 further includes a plurality of fixing legs 132, which are connected to the lower side of the C-shaped ring 130 and are spaced apart in the circumferential direction of the C-shaped ring 130. A fixing groove 12a is formed on the inner side of the lower end of the inner conductor 12, and the plurality of fixing legs 132 are bent into an L shape and inserted and fixed into the fixing groove 12a.

[0053] like Figures 1 to 10 As shown, in the illustrated embodiment, the ends 131 a of the plurality of elastic contact arms 131 are bent into an inwardly convex arc shape for electrically contacting the outer peripheral surface of the mating plug 3 inserted into the inner cavity 120 of the inner conductor 12 .

[0054] like Figures 1 to 10As shown, in the illustrated embodiment, a limiting flange 12 b is formed on the inner side of the upper end of the inner conductor 12 , and the limiting flange 12 b is suitable for axially abutting against the ends of the multiple elastic contact arms 131 to axially position the ends of the multiple elastic contact arms 131 .

[0055] like Figures 1 to 10 As shown, in the illustrated embodiment, the plurality of elastic contact arms 131 extend obliquely toward the upper end and the center of the inner conductor 12 , so that a predetermined angle is formed between the plurality of elastic contact arms 131 and the inner circumferential surface of the inner conductor 12 .

[0056] like Figures 1 to 10 As shown, in the illustrated embodiment, the inner conductor 12 is an integrally machined part.

[0057] like Figures 1 to 10 As shown, in the illustrated embodiment, the outer conductive shell 11 includes two half shells 11 ′ assembled together, and the half shells 11 ′ are an integral stamping part.

[0058] like Figures 1 to 10 As shown, in the illustrated embodiment, the half shell 11' includes a semi-annular wall 110', and the semi-annular walls 110' of the two half shells 11' are spliced ​​into an annular wall 110. Dovetail protrusions 11a and dovetail grooves 11b are respectively formed on the splicing ends of the two semi-annular walls 110', and the dovetail protrusions 11a are engaged with the dovetail grooves 11b to splice the two semi-annular walls 110' together.

[0059] like Figures 1 to 10 As shown, in the illustrated embodiment, the elastic contact member 13 is an integral stamping member.

[0060] like Figures 1 to 10 As shown, in another exemplary embodiment of the present invention, an electrical connection product is also disclosed. The electrical connection product comprises: a circuit board 2 and the aforementioned electrical connection assembly 1. The connection portion of the outer conductive shell 11 of the electrical connection assembly 1 is welded to the circuit board 2.

[0061] like Figures 1 to 10 As shown, in another exemplary embodiment of the present utility model, a connector is also disclosed. The connector comprises: an insulating shell (not shown) and the aforementioned electrical connection assembly 1. The electrical connection assembly 1 is installed in the insulating shell.

[0062] Those skilled in the art will appreciate that the embodiments described above are exemplary and can be improved upon by those skilled in the art. The structures described in the various embodiments can be freely combined without causing any conflicts in structure or principle, and these changes should fall within the scope of protection of the present utility model.

[0063] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to exemplify the preferred implementation modes of the present invention and should not be construed as limiting the present invention.

[0064] Although some embodiments of the general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined by the claims and their equivalents.

[0065] It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. In addition, any element number of the claims should not be construed as limiting the scope of the present invention.

Claims

1. An electrical connection assembly, characterized in that: include: The outer conductive shell (11) comprises: an annular wall (110) having an upper periphery and a lower periphery that are axially opposed; an elastic portion (111) connected to the upper periphery of the annular wall (110); and a connecting portion (112) connected to the lower periphery of the annular wall (110); and an inner conductor (12) installed in the outer conductive shell (11) and axially clamped between the elastic portion (111) and the connecting portion (112), The outer diameter of the inner conductor (12) is smaller than the inner diameter of the outer conductive shell (11), so that the inner conductor (12) can float relative to the outer conductive shell (11) in the axial direction and radial direction while maintaining electrical contact with the outer conductive shell (11).

2. The electrical connection assembly according to claim 1, characterized in that: An inner cavity (120) is formed in the inner conductor (12) to allow a mating plug (3) to be inserted; The electrical connection assembly (1) further comprises: An elastic contact member (13) is installed in the inner cavity (120) of the inner conductor (12). The elastic contact piece (13) is used to electrically contact with a mating plug (3) inserted into the inner cavity (120), so that the mating plug (3) can be electrically connected to the inner conductor (12) via the elastic contact piece (13).

3. The electrical connection assembly according to claim 2, characterized in that: The elastic portion (111) of the outer conductive shell (11) comprises: A plurality of elastic arms (1110) are distributed at intervals in the circumferential direction of the outer conductive shell (11), One end of the plurality of elastic arms (1110) is connected to the upper periphery of the annular wall (110), and the other end is axially pressed against the inner conductor (12).

4. The electrical connection assembly according to claim 3, characterized in that: The elastic arm (1110) comprises: A first arm portion (111a) extending in the axial direction and having a lower end connected to the upper periphery of the annular wall (110); A second arm portion (111c) is arc-shaped and one end of which is connected to the upper end of the first arm portion (111a); and a third arm portion (111b) connected to the other end of the second arm portion (111c) and extending slightly downwardly toward the center of the outer conductive shell (11), The distal end of the third arm portion (111b) axially abuts against the inner conductor (12) to be in electrical contact with the inner conductor (12).

5. The electrical connection assembly according to claim 4, characterized in that: The connecting portion (112) of the outer conductive shell (11) comprises: A plurality of connection pins (1120) are distributed at intervals in the circumferential direction of the outer conductive shell (11) and axially abut against the inner conductive body (12), The plurality of connection pins (1120) are connected to the lower periphery of the annular wall (110) and extend radially toward the center of the outer conductive shell (11).

6. The electrical connection assembly according to claim 5, characterized in that: A contact protrusion (112a) is formed on the top surface of the connecting pin (1120), and the contact protrusion (112a) is in axial electrical contact with the inner conductor (12) to be electrically connected to the inner conductor (12); The bottom surface of the connecting pin (1120) is suitable for being soldered to the circuit board (2) so as to be electrically connected to the circuit board (2).

7. The electrical connection assembly according to claim 1, characterized in that: The inner conductor (12) has an axially opposite top surface and bottom surface, and the elastic portion (111) of the outer conductive shell (11) axially abuts against the top surface of the inner conductor (12).

8. The electrical connection assembly according to claim 7, characterized in that: The inner conductor (12) comprises an upper cylinder (121) and a lower cylinder (122) which are coaxially connected, the diameter of the upper cylinder (121) is larger than the diameter of the lower cylinder (122), and the upper cylinder (121) is installed in the outer conductive shell (11); The elastic portion (111) and the connecting portion (112) of the outer conductive shell (11) are axially pressed against the top surface and the bottom surface of the upper cylinder (121), respectively, so that the upper cylinder (121) is axially clamped between the elastic portion (111) and the connecting portion (112) of the outer conductive shell (11).

9. The electrical connection assembly according to claim 8, characterized in that: The bottom of the connecting portion (112) of the outer conductive shell (11) is suitable for being welded to the circuit board (2), and the lower cylinder (122) of the inner conductor (12) extends out from the outer conductive shell (11) and is suitable for passing through the mounting hole (201) on the circuit board (2).

10. The electrical connection assembly according to claim 2, characterized in that: The elastic contact member (13) comprises: C-ring (130); and A plurality of elastic contact arms (131) are connected to the upper side of the C-shaped ring (130) and are spaced apart in the circumferential direction of the C-shaped ring (130). The plurality of elastic contact arms (131) are used to electrically contact the outer peripheral surface of a mating plug (3) inserted into the inner cavity (120) of the inner conductor (12).

11. The electrical connection assembly according to claim 10, characterized in that: The elastic contact member (13) further comprises: A plurality of fixing legs (132) are connected to the lower side of the C-shaped ring (130) and are spaced apart in the circumferential direction of the C-shaped ring (130). A fixing groove (12a) is formed on the inner side of the lower end of the inner conductor (12), and the plurality of fixing legs (132) are bent into an L-shape and inserted and fixed into the fixing groove (12a).

12. The electrical connection assembly according to claim 10, characterized in that: The ends (131a) of the plurality of elastic contact arms (131) are bent into an arc shape convex inwardly, and are used to make electrical contact with the outer peripheral surface of a mating plug (3) inserted into the inner cavity (120) of the inner conductor (12).

13. The electrical connection assembly according to claim 12, characterized in that: A limiting flange (12b) is formed on the inner side of the upper end of the inner conductor (12), and the limiting flange (12b) is suitable for axially abutting against the ends of the multiple elastic contact arms (131) to axially position the ends of the multiple elastic contact arms (131).

14. The electrical connection assembly according to claim 10, characterized in that: The plurality of elastic contact arms (131) extend obliquely toward the upper end and the center of the inner conductor (12), so that a predetermined angle is formed between the plurality of elastic contact arms (131) and the inner peripheral surface of the inner conductor (12).

15. The electrical connection assembly according to claim 1, characterized in that: The inner conductor (12) is an integral machined part.

16. The electrical connection assembly according to claim 1, characterized in that: The outer conductive shell (11) comprises two half shells (11') assembled together, and the half shells (11') are integral stamped parts.

17. The electrical connection assembly according to claim 16, characterized in that: The half shell (11') comprises a semi-annular wall (110'), and the semi-annular walls (110') of the two half shells (11') are spliced ​​to form the annular wall (110); A dovetail protrusion (11a) and a dovetail groove (11b) are respectively formed on the splicing ends of the two semi-annular walls (110'), and the dovetail protrusion (11a) is engaged with the dovetail groove (11b) to splice the two semi-annular walls (110') together.

18. The electrical connection assembly according to claim 2, characterized in that: The elastic contact piece (13) is an integrated stamping piece.

19. An electrical connection product, characterized in that: include: Circuit board (2); and The electrical connection assembly (1) according to any one of claims 1 to 18, wherein the connection portion of the outer conductive shell (11) is soldered to the circuit board (2).

20. A connector, characterized in that: include: Insulation shell; and The electrical connection assembly (1) according to any one of claims 1 to 18 is installed in the insulating shell.

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