Electrical connection assembly, electrical connection product and connector

Abstract

The invention 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 electric connection assembly, axial and radial floating electric contact can be achieved at the same time, and the electric connection assembly is very simple in structure and easy to manufacture.

Description

Technical Field

[0001] This invention relates to an electrical connection assembly, an electrical connection product including the electrical connection assembly, and a connector including the electrical connection assembly. Background Technology

[0002] In existing technologies, conductive components in connectors typically cannot float simultaneously in both the axial and radial directions. Therefore, the conductive components in existing connectors cannot absorb both axial and radial errors at the same time, requiring special floating structures on the connector's insulating shell. These floating structures are usually quite complex and increase manufacturing costs. Summary of the Invention

[0003] The purpose of this invention is to solve at least one aspect of the aforementioned problems and defects existing in the prior art.

[0004] According to one aspect of the present invention, an electrical connection assembly is provided. The electrical connection assembly includes: an outer conductive shell and an inner conductive body. The outer conductive shell includes: an annular wall having an axially opposed upper periphery and a lower periphery; 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 conductive body is mounted in the outer conductive shell and axially held between the elastic portion and the connecting portion. The outer diameter of the inner conductive body is smaller than the inner diameter of the outer conductive shell, such that the inner conductive body 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 present invention, an inner cavity is formed in the inner conductor to allow insertion of a mating plug; the electrical connection assembly further includes a resilient contact element installed in the inner cavity of the inner conductor element, the resilient contact element being used to make electrical contact with the mating plug inserted into the inner cavity, such that the mating plug can be electrically connected to the inner conductor element via the resilient contact element.

[0006] According to another exemplary embodiment of the present invention, 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 is connected to the upper periphery of the annular wall, and the other end axially abuts against the inner conductive body.

[0007] According to another exemplary embodiment of the present invention, 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 being arc-shaped and having one end connected to the upper end of the first arm portion; and a third arm portion connected to the other end of the second arm portion and extending slightly downward toward the center of the outer conductive shell. The end of the third arm portion axially abuts against the inner conductor to make electrical contact with the inner conductor.

[0008] According to another exemplary embodiment of the present invention, the connecting portion of the outer conductive shell includes: a plurality of connecting feet, spaced apart circumferentially on the outer conductive shell and axially abutting against the inner conductive body. The plurality of connecting feet 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 present invention, a contact protrusion is formed on the top surface of the connecting foot, the contact protrusion being axially electrically contacting the inner conductor for electrical connection with the inner conductor; the bottom surface of the connecting foot is adapted to be soldered to a circuit board for electrical connection with the circuit board.

[0010] According to another exemplary embodiment of the present invention, the inner conductor has an axially opposed top surface and a bottom surface, 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 present invention, the inner conductive body 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 part and the connecting part of the outer conductive shell axially abut against the top surface and the bottom surface of the upper cylinder, respectively, so that the upper cylinder is axially clamped between the elastic part and the connecting part of the outer conductive shell.

[0012] According to another exemplary embodiment of the present invention, the bottom of the connecting portion of the outer conductive shell is adapted to be soldered to a circuit board, and the lower cylinder of the inner conductive body extends from the outer conductive shell and is adapted to pass through a mounting hole on the circuit board.

[0013] According to another exemplary embodiment of the present invention, the resilient contact includes: a C-ring; and a plurality of resilient contact arms connected to the upper side of the C-ring and spaced apart in the circumferential direction of the C-ring, the plurality of resilient contact arms being used for electrical contact with 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 present invention, the elastic contact further includes: a plurality of fixing feet connected to the lower side of the C-ring and spaced apart in the circumferential direction of the C-ring, a fixing groove formed on the inner side of the lower end of the inner conductor, the plurality of fixing feet being 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 resilient contact arms are bent into an inwardly convex arc shape for electrical contact with the outer peripheral surface of the mating plug inserted into the inner cavity of the inner conductor.

[0016] According to another exemplary embodiment of the present invention, a limiting flange is formed on the inner side of the upper end of the inner conductor, the limiting flange being adapted to axially abut against the ends of the plurality of elastic contact arms to axially position the ends of the plurality of 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 center of the inner conductor, such that the plurality of elastic contact arms have a predetermined angle with the inner peripheral surface of the inner conductor.

[0018] According to another exemplary embodiment of the present invention, the internal conductor is a one-piece machined part.

[0019] According to another exemplary embodiment of the present invention, the outer conductive shell includes two half-shells assembled together, and the half-shells are integral stamped parts.

[0020] According to another exemplary embodiment of the present invention, the semi-shell includes a semi-annular wall, and the semi-annular walls of the two semi-shells are spliced ​​together to form the annular wall; a dovetail-shaped protrusion and a dovetail-shaped groove are respectively formed on the splicing ends of the two semi-annular walls, and the dovetail-shaped protrusion engages with the dovetail-shaped groove to splice the two semi-annular walls together.

[0021] According to another exemplary embodiment of the present invention, the elastic contact is a one-piece stamped part.

[0022] According to another aspect of the present invention, an electrical connection product is provided. The electrical connection product includes: a circuit board; and the aforementioned electrical connection assembly, wherein a connection portion of its outer conductive shell is soldered to the circuit board.

[0023] According to another aspect of the present invention, a connector is provided. The connector includes: an insulating housing; and the aforementioned electrical connection assembly, which is mounted in the insulating housing.

[0024] In the foregoing exemplary embodiments of the present invention, the electrical connection assembly is not only capable of simultaneously realizing axial and radial floating electrical contacts, but also has a very simple structure and is easy to manufacture.

[0025] Other objects and advantages of the invention will become apparent from the following description of the invention with reference to the accompanying drawings, and will help to provide a comprehensive understanding of the invention. Attached Figure Description

[0026] Figure 1 A perspective view of an electrical connection assembly and circuit board according to an exemplary embodiment of the present invention is shown;

[0027] Figure 2An axial sectional view of an electrical connection assembly and circuit board according to an exemplary embodiment of the present invention is shown;

[0028] Figure 3 An exploded schematic diagram of an electrical connection assembly and a circuit board according to an exemplary embodiment of the present invention is shown;

[0029] Figure 4 A perspective view of an electrical connection assembly according to an exemplary embodiment of the present invention is shown;

[0030] Figure 5 An exploded schematic diagram of an electrical connection assembly according to an exemplary embodiment of the present invention is shown;

[0031] Figure 6 An axial cross-sectional view of an electrical connection assembly according to an exemplary embodiment of the present invention is shown;

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

[0033] Figure 8 This shows an axial cross-sectional view of the inner conductor of an electrical connection assembly according to an exemplary embodiment of the present invention.

[0034] Figure 9 A perspective view of an elastic contact of an electrical connection assembly according to an exemplary embodiment of the present invention is shown.

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

[0036] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. In this specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the overall inventive concept of the present invention and should not be construed as a limitation thereof.

[0037] Furthermore, in the following detailed description, numerous specific details are set forth for ease of explanation to provide a thorough understanding of the embodiments disclosed herein. However, it will be apparent that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and apparatuses are illustrated to simplify the figures.

[0038] According to a general technical concept of the present invention, an electrical connection assembly is provided. The electrical connection assembly includes: an outer conductive shell and an inner conductive body. The outer conductive shell includes: an annular wall having an axially opposed upper periphery and a lower periphery; 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 conductive body is mounted in the outer conductive shell and axially held between the elastic portion and the connecting portion. The outer diameter of the inner conductive body is smaller than the inner diameter of the outer conductive shell, such that the inner conductive body 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 present invention, an electrical connection product is provided. The electrical connection product includes: a circuit board; and the aforementioned electrical connection assembly, wherein the connection portion of its outer conductive shell is soldered to the circuit board.

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

[0041] Figure 1 A perspective view of an electrical connection assembly 1 and a circuit board 2 according to an exemplary embodiment of the present invention is shown; Figure 2 An axial sectional view of an electrical connection assembly 1 and a circuit board 2 according to an exemplary embodiment of the present invention is shown; Figure 3 An exploded view of an electrical connection assembly 1 and a circuit board 2 according to an exemplary embodiment of the present invention is shown; Figure 4 A perspective view of an electrical connection assembly 1 according to an exemplary embodiment of the present invention is shown; Figure 5 An exploded view of an electrical connection assembly 1 according to an exemplary embodiment of the present invention is shown; Figure 6 An axial cross-sectional view of an electrical connection assembly 1 according to an exemplary embodiment of the present invention is shown; Figure 7 Showing an axial cross-sectional view of the outer conductive housing 11 of an electrical connection assembly 1 according to an exemplary embodiment of the present invention; Figure 8 Showing an axial cross-sectional view of the inner conductor 12 of an electrical connection assembly 1 according to an exemplary embodiment of the present invention; Figure 9 A perspective view of the resilient contact 13 of an electrical connection assembly 1 according to an exemplary embodiment of the present invention is shown. Figure 10 This shows 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 invention.

[0042] like Figures 1 to 10As shown, in an exemplary embodiment of the present invention, an electrical connection assembly 1 is disclosed. The electrical connection assembly 1 includes an outer conductive shell 11 and an inner conductive body 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 axially opposed upper periphery and a lower periphery. 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 conductive body 12 is mounted in the outer conductive shell 11 and is axially held between the elastic portion 111 and the connecting portion 112. The outer diameter of the inner conductive body 12 is smaller than the inner diameter of the outer conductive shell 11, such that the inner conductive body 12 can float axially and radially relative to the outer conductive shell 11 while maintaining electrical contact with it.

[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 insertion of the mating plug 3. The electrical connection assembly 1 also includes a resilient contact 13, which is mounted in the inner cavity 120 of the inner conductor 12. The resilient contact 13 is used to make electrical contact with 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 resilient 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, which are spaced apart in the circumferential direction of the outer conductive shell 11. One end of each elastic arm 1110 is connected to the upper periphery of the annular wall 110, and the other end axially abuts 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 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 downward 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 feet 1120. The plurality of connecting feet 1120 are spaced apart in the circumferential direction of the outer conductive shell 11 and axially abut against the inner conductive body 12. The plurality of connecting feet 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 connector 1120. The contact protrusion 112a makes axial electrical contact with the inner conductor 12 for electrical connection. The bottom surface of the connector 1120 is adapted to be soldered to the circuit board 2 for electrical connection.

[0048] like Figures 1 to 10 As shown in the illustrated embodiment, the inner conductor 12 has an axially opposite top surface and a bottom surface, 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. 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 axially abut against the top and bottom surfaces 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 adapted to be soldered to the circuit board 2, and the lower cylinder 122 of the inner conductive body 12 extends from the outer conductive shell 11 and is adapted to pass through the mounting hole 201 on the circuit board 2.

[0051] like Figures 1 to 10 As shown in the illustrated embodiment, the resilient contact 13 includes a C-ring 130 and a plurality of resilient contact arms 131. The plurality of resilient contact arms 131 are connected to the upper side of the C-ring 130 and are spaced apart in the circumferential direction of the C-ring 130. The plurality of resilient contact arms 131 are used for electrical contact with 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 13 further includes a plurality of fixing feet 132, which are connected to the lower side of the C-ring 130 and spaced apart in the circumferential direction of the C-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 feet 132 are bent into an L-shape and inserted into and fixed into the fixing groove 12a.

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

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

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

[0056] like Figures 1 to 10 As shown in the illustrated embodiment, the internal conductor 12 is a one-piece 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 integral stamped parts.

[0058] like Figures 1 to 10 As shown in the illustrated embodiment, the semi-shell 11' includes a semi-annular wall 110', and the semi-annular walls 110' of the two semi-shells 11' are spliced ​​together to form an annular wall 110. A dovetail-shaped protrusion 11a and a dovetail-shaped groove 11b are formed on the splicing ends of the two semi-annular walls 110', respectively. The dovetail-shaped protrusion 11a and the dovetail-shaped groove 11b engage to splice the two semi-annular walls 110' together.

[0059] like Figures 1 to 10 As shown in the illustrated embodiment, the elastic contact 13 is a one-piece stamped part.

[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 includes 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 soldered to the circuit board 2.

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

[0062] Those skilled in the art will understand that the embodiments described above are exemplary and can be improved upon. The structures described in the various embodiments can be freely combined without causing structural or principle conflicts, and these changes should fall within the protection scope of this invention.

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

[0064] While some embodiments of the general concept of the invention have been shown and described, those skilled in the art will understand that changes may be made to these embodiments without departing from the principles and spirit of the general concept of the invention, 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 words "a" or "an" do not exclude multiple elements. Furthermore, any reference numerals in the claims should not be construed as limiting the scope of the invention.

Claims

1. An electrical connection assembly, characterized in that, include: The outer conductive shell (11) includes: The annular wall (110) has an axially opposed upper periphery and a lower periphery; The elastic part (111) is connected to the upper periphery of the annular wall (110); and A connecting portion (112) is connected to the lower periphery of the annular wall (110); and an inner conductor (12) is 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 axially and radially relative to the outer conductive shell (11) 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 the insertion of the mating plug (3); The electrical connection assembly (1) further includes: An elastic contact (13) is installed in the inner cavity (120) of the inner conductor (12). The resilient contact (13) is used to make electrical contact with 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 resilient contact (13).

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

4. The electrical connection assembly according to claim 3, characterized in that: The elastic arm (1110) includes: The first arm (111a) extends axially and its lower end is connected to the upper periphery of the annular wall (110); The second arm (111c) is arc-shaped, and one end of it is connected to the upper end of the first arm (111a); and The third arm (111b) is connected to the other end of the second arm (111c) and extends slightly downward toward the center of the outer conductive shell (11). The end of the third arm (111b) abuts axially against the inner conductor (12) to make 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) includes: Multiple connecting pins (1120) are spaced apart circumferentially on the outer conductive shell (11) and axially abut against the inner conductive body (12). The plurality of connecting feet (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 foot (1120), and the contact protrusion (112a) makes 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 adapted to be soldered to the circuit board (2) for electrical connection with 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 a bottom surface, and the elastic part (111) of the outer conductive shell (11) 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) 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). The upper cylinder (121) is installed in the outer conductive shell (11). The elastic part (111) and the connecting part (112) of the outer conductive shell (11) abut against the top and bottom surfaces of the upper cylinder (121) respectively, so that the upper cylinder (121) is axially clamped between the elastic part (111) and the connecting part (112) of the outer conductive shell (11).

9. The electrical connection assembly according to claim 8, characterized in that: The bottom of the connecting part (112) of the outer conductive shell (11) is adapted to be soldered to the circuit board (2), and the lower cylinder (122) of the inner conductor (12) extends out of the outer conductive shell (11) and is adapted to pass 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 (13) includes: C-ring (130); and Multiple elastic contact arms (131) are connected to the upper side of the C-ring (130) and are spaced apart in the circumferential direction of the C-ring (130). The plurality of elastic contact arms (131) are used to make electrical contact with the outer peripheral surface of the 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 (13) further includes: Multiple fixing feet (132) are connected to the lower side of the C-ring (130) and are spaced apart in the circumferential direction of the C-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 feet (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 inwardly convex arc shape for electrical contact with the outer peripheral surface of the 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), the limiting flange (12b) being adapted to axially abut against the ends of the plurality of elastic contact arms (131) to axially position the ends of the plurality of 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 center of the inner conductor (12), such that the plurality of elastic contact arms (131) have a predetermined angle with the inner circumferential surface of the inner conductor (12).

15. The electrical connection assembly according to claim 1, characterized in that: The internal conductor (12) is a one-piece machined part.

16. The electrical connection assembly according to claim 1, characterized in that: The outer conductive shell (11) includes 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 semi-shell (11') includes a semi-annular wall (110'), and the semi-annular walls (110') of the two semi-shells (11') are spliced ​​together to form the annular wall (110); A dovetail-shaped protrusion (11a) and a dovetail-shaped groove (11b) are formed on the splicing ends of the two semi-annular walls (110'), respectively. The dovetail-shaped protrusion (11a) and the dovetail-shaped groove (11b) are joined together to splice the two semi-annular walls (110') together.

18. The electrical connection assembly according to claim 2, characterized in that: The elastic contact element (13) is an integral stamped part.

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

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

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