Connector and connector assembly

Abstract

The invention discloses a connector and a connector assembly. The connector comprises: an insulating housing; the pair of first terminals are accommodated in the insulating shell; and a pair of second terminals accommodated in the insulating housing and fixed to the insulating housing. The first terminal comprises a plate-shaped main body and an elastic arm; the second terminal comprises a terminal main body and an elastic finger; the elastic arm and the terminal main body are respectively positioned on two sides of the plate-shaped main body; the elastic fingers of the pair of second terminals respectively pass through the plate-shaped main bodies of the pair of first terminals and are used for respectively abutting against the elastic arms of the pair of first terminals. In the invention, the connector is suitable for being electrically connected to the two different electrodes of the power supply respectively, so that the application range is expanded. Moreover, the elastic finger of the second terminal not only can provide auxiliary contact pressure for the elastic arm of the first terminal, but also can balance the contact pressure during deviation and deflection matching, so that the first terminal can be in stable and reliable electric contact with the matching plug during deviation or deflection matching, and the electric connection performance is greatly improved.

Description

Technical Field

[0001] The invention relates to a connector and a connector assembly comprising the connector. Background Art

[0002] In the prior art, the power supply unit and the metal bar of the cabinet are electrically connected through a connector. The mating plug of the power supply unit is inserted between a pair of terminals of the connector to be electrically connected to a pair of terminals of the connector. However, in the prior art, there are situations such as offset mating and skewed mating between the mating plug and the terminals of the connector. When offset mating or skewed mating occurs, the following problems will occur: "One side of the terminal is subjected to large force, and the other side of the terminal is subjected to small force, or even no contact". This problem is more serious, especially in extreme offset and skewed mating, which seriously affects product performance, resulting in large contact impedance and unstable contact impedance of the connector product, and reducing the current carrying capacity of the connector product when it is offset.

[0003] In addition, in the prior art, a pair of terminals of a connector can only be electrically connected to the same electrode of a power source at the same time. Therefore, the existing connector is only suitable for electrically connecting a single electrode of a power source, but cannot electrically connect two different electrodes of a power source separately, which limits the influence range of the connector. Summary of the invention

[0004] The purpose of the present invention is to solve at least one aspect of the above-mentioned problems and defects in the prior art.

[0005] According to one aspect of the present invention, a connector is provided. The connector comprises: an insulating housing; a pair of first terminals, which are accommodated in the insulating housing, facing each other and spaced apart from each other; and a pair of second terminals, which are accommodated in the insulating housing and fixed to the insulating housing. The first terminal comprises a plate-shaped body and an elastic arm connected to the plate-shaped body, the elastic arms of the pair of first terminals facing each other, and used to clamp the mating plug inserted between them; the second terminal comprises a terminal body and an elastic finger connected to the terminal body, the elastic arm and the terminal body are respectively located on both sides of the plate-shaped body; the elastic fingers of the pair of second terminals respectively pass through the plate-shaped bodies of the pair of first terminals, and are used to respectively abut against the elastic arms of the pair of first terminals.

[0006] According to an exemplary embodiment of the present invention, the plate-shaped body of the first terminal is suspended in the inner cavity of the insulating housing, so that both the plate-shaped body and the elastic arm of the first terminal can be elastically deformed.

[0007] According to another exemplary embodiment of the present invention, the terminal body of the second terminal includes: a side plate portion, a plate-shaped body facing the first terminal; and a fixing portion, connected to the side plate portion and fixed to the side wall of the insulating shell, and the elastic finger is connected to the top of the side plate portion and extends vertically relative to the side plate portion.

[0008] According to another exemplary embodiment of the present invention, the side plate portion of the second terminal is suspended in the inner cavity of the insulating housing, so that the side plate portion and the elastic fingers of the second terminal can be elastically deformed.

[0009] According to another exemplary embodiment of the present invention, the terminal body of the second terminal further includes: a substrate portion connected between the side plate portion and the bottom of the fixing portion, the fixing portion being plate-shaped so that the cross-section of the terminal body of the second terminal is U-shaped.

[0010] According to another exemplary embodiment of the present invention, the insulating shell has a pair of first side walls opposite to each other in a first horizontal direction, a slot is formed in the first side wall, and the fixing portion of the second terminal is inserted into the slot of the first side wall to fix the second terminal to the insulating shell.

[0011] According to another exemplary embodiment of the present invention, surfaces of the plate-shaped body of the first terminal and the side plate portion of the second terminal are perpendicular to the first horizontal direction, and the elastic fingers extend along the first horizontal direction.

[0012] According to another exemplary embodiment of the present invention, a through hole allowing the elastic finger to pass through is formed on the plate-shaped body of the first terminal, and the elastic finger passes through the plate-shaped body of the first terminal via the through hole.

[0013] According to another exemplary embodiment of the present invention, a plurality of through holes are formed on the plate-like body of the first terminal, and the plurality of through holes are spaced apart and distributed on a second level perpendicular to the first horizontal direction; a plurality of elastic fingers are formed on the side plate portion of the second terminal, and the plurality of elastic fingers respectively pass through the plate-like body of the first terminal via the plurality of through holes.

[0014] According to another exemplary embodiment of the present invention, the first terminal further includes: a welding portion connected to the bottom of the plate-shaped body and exposed through the bottom opening of the insulating housing, for welding to a circuit board.

[0015] According to another exemplary embodiment of the present invention, the welding portion is plate-shaped, and the substrate portion of the second terminal is stacked on the top surface of the welding portion of the first terminal; the welding portion has a flat welding bottom surface, so that the welding portion is suitable for being welded on the surface of the circuit board in a surface mounting manner.

[0016] According to another exemplary embodiment of the present invention, the insulating shell also has a pair of second side walls opposite to each other in a second horizontal direction perpendicular to the first horizontal direction and a support beam connected between the bottoms of the pair of second side walls; a slot allowing a mating plug to be inserted is formed on the top wall of the insulating shell, and the support beam faces the slot in a vertical direction for supporting the end of the inserted mating plug.

[0017] According to another exemplary embodiment of the present invention, the elastic arms of the pair of first terminals are symmetrically arranged on both sides of a symmetry plane and extend obliquely relative to the symmetry plane, so that the elastic arms of the pair of first terminals are V-shaped.

[0018] According to another exemplary embodiment of the present invention, the elastic arm of the first terminal includes: an arm body, which extends obliquely relative to the symmetry plane; an arm root, which is bent into an arc and connected between the arm body and the upper end of the plate-like body; and an arm end, which is connected to the lower end of the arm body and is bent at a predetermined angle relative to the arm body in a direction away from the symmetry plane.

[0019] According to another exemplary embodiment of the present invention, the arm end has a contact portion connected to the lower end of the arm body, and the contact portion is bent into an arc and protrudes toward the symmetry plane for electrical contact with the mating plug.

[0020] According to another exemplary embodiment of the present invention, when the mating plug is inserted between the elastic arms of the pair of first terminals, the elastic fingers on the second terminal abut against a side of the contact portion facing away from the symmetry plane.

[0021] According to another exemplary embodiment of the present invention, the symmetry plane is perpendicular to the first horizontal direction, and a plurality of separation grooves are formed on the elastic arm of the first terminal, and the plurality of separation grooves are spaced apart and distributed in a second horizontal direction perpendicular to the first horizontal direction, so that the elastic arm is in a comb-teeth shape.

[0022] According to another exemplary embodiment of the present invention, the separation groove extends from the arm body of the elastic arm to the end surface of the arm end of the elastic arm.

[0023] According to another exemplary embodiment of the present invention, the first terminal and the second terminal are respectively one-piece metal stamping parts, and the insulating housing is an one-piece injection-molded part.

[0024] According to another aspect of the present invention, a connector assembly is provided, comprising: the aforementioned connector; and a mating plug inserted between elastic arms of a pair of first terminals of the connector to electrically contact the pair of first terminals.

[0025] According to an exemplary embodiment of the present invention, the mating plug includes: an insulating substrate having two opposite sides in its thickness direction; a first conductive pad formed on one side of the insulating substrate; and a second conductive pad formed on the other side of the insulating substrate, and the elastic arms of the pair of first terminals are respectively electrically contacted with the first conductive pad and the second conductive pad on the mating plug.

[0026] According to another exemplary embodiment of the present invention, the connector assembly further comprises: a circuit board having a first welding pad and a second welding pad formed on its surface. The welding portions of the pair of first terminals are respectively welded to the first welding pad and the second welding pad of the circuit board.

[0027] In the aforementioned exemplary embodiments according to the present invention, the connector is suitable for being electrically connected to two different electrodes of a power source, respectively, thereby expanding the application range of the connector. Moreover, the elastic fingers of the second terminal can not only provide auxiliary contact pressure for the elastic arms of the first terminal, but also balance the contact pressure during offset and skewed mating, so that a pair of first terminals can also be stably and reliably electrically contacted with the mating plug during offset or skewed mating, thereby greatly improving the electrical connection performance of the connector product.

[0028] 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

[0029] Figure 1 A perspective schematic diagram showing a connector according to an exemplary embodiment of the present invention;

[0030] Figure 2 A perspective cross-sectional view showing a connector according to an exemplary embodiment of the present invention;

[0031] Figure 3 An exploded schematic diagram showing a connector according to an exemplary embodiment of the present invention;

[0032] Figure 4 A perspective schematic diagram showing a terminal of a connector according to an exemplary embodiment of the present invention;

[0033] Figure 5 An exploded schematic diagram showing a first terminal and a second terminal of a connector according to an exemplary embodiment of the present invention;

[0034] Figure 6 A plan cross-sectional view showing a connector according to an exemplary embodiment of the present invention;

[0035] Figure 7 A plan cross-sectional view showing a connector assembly according to an exemplary embodiment of the present invention. DETAILED DESCRIPTION

[0036] The technical solution of the present invention is further specifically described below by examples and in conjunction with the accompanying drawings. In the 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 of the present invention.

[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 present invention, a connector is provided. The connector includes: an insulating housing; a pair of first terminals, which are accommodated in the insulating housing, facing each other and spaced apart from each other; and a pair of second terminals, which are accommodated in the insulating housing and fixed to the insulating housing. The first terminal includes a plate-shaped body and an elastic arm connected to the plate-shaped body, and the elastic arms of the pair of first terminals face each other and are used to clamp the mating plug inserted between them; the second terminal includes a terminal body and an elastic finger connected to the terminal body, and the elastic arm and the terminal body are respectively located on both sides of the plate-shaped body; the elastic fingers of the pair of second terminals respectively pass through the plate-shaped bodies of the pair of first terminals, and are used to respectively abut against the elastic arms of the pair of first terminals.

[0039] According to another general technical concept of the present invention, a connector assembly is provided, comprising: the aforementioned connector; and a mating plug inserted between elastic arms of a pair of first terminals of the connector to electrically contact the pair of first terminals.

[0040] Figure 1 A perspective schematic diagram showing a connector according to an exemplary embodiment of the present invention; Figure 2 A perspective cross-sectional view showing a connector according to an exemplary embodiment of the present invention; Figure 3An exploded schematic diagram showing a connector according to an exemplary embodiment of the present invention; Figure 4 A three-dimensional schematic diagram showing terminals 1 and 2 of a connector according to an exemplary embodiment of the present invention; Figure 5 An exploded schematic diagram showing a first terminal 1 and a second terminal 2 of a connector according to an exemplary embodiment of the present invention is shown.

[0041] like Figures 1 to 5 As shown, in an exemplary embodiment of the present invention, a connector is disclosed. The connector includes: a pair of first terminals 1, a pair of second terminals 2 and an insulating housing 3. The pair of first terminals 1 are accommodated in the insulating housing 3, and the pair of first terminals 1 face each other and are spaced apart from each other. The pair of second terminals 2 are accommodated in the insulating housing 3 and fixed to the insulating housing 3.

[0042] Figure 6 A plan cross-sectional view showing a connector according to an exemplary embodiment of the present invention; Figure 7 A plan cross-sectional view showing a connector assembly according to an exemplary embodiment of the present invention.

[0043] like Figures 1 to 7 As shown, in the illustrated embodiment, the first terminal 1 includes a plate-shaped body 10 and an elastic arm 11 connected to the plate-shaped body 10. The elastic arms 11 of a pair of first terminals 1 face each other and are used to clamp the mating plug 4 inserted between them. The second terminal 2 includes a terminal body 20 and an elastic finger 24 connected to the terminal body 20, and the elastic arm 11 and the terminal body 20 are respectively located on both sides of the plate-shaped body 10. The elastic fingers 24 of a pair of second terminals 2 respectively pass through the plate-shaped bodies 10 of a pair of first terminals 1, and are used to respectively abut against the elastic arms 11 of a pair of first terminals 1.

[0044] like Figures 1 to 7 As shown, in the illustrated embodiment, the plate-like body 10 of the first terminal 1 is suspended in the inner cavity of the insulating shell 3, so that the plate-like body 10 and the elastic arm 11 of the first terminal 1 can be elastically deformed, thereby increasing the floating amount of the elastic arm 11 in the first horizontal direction X.

[0045] like Figures 1 to 7 As shown, in the illustrated embodiment, the terminal body 20 of the second terminal 2 includes: a side plate portion 21 and a fixing portion 22. The side plate portion 21 of the second terminal 2 faces the plate-shaped body 10 of the first terminal 1. The fixing portion 22 of the second terminal 2 is connected to the side plate portion 21 and is fixed to the side wall of the insulating housing 3. The elastic finger 24 is connected to the top of the side plate portion 21 and extends vertically relative to the side plate portion 21.

[0046] like Figures 1 to 7As shown, in the illustrated embodiment, the side plate portion 21 of the second terminal 2 is suspended in the inner cavity of the insulating housing 3, so that the side plate portion 21 of the second terminal 2 and the elastic finger 24 can be elastically deformed. In this way, the floating amount of the elastic finger 24 in the first horizontal direction X can be increased.

[0047] like Figures 1 to 7 As shown, in the illustrated embodiment, the terminal body 20 of the second terminal 2 further includes a substrate portion 23, and the substrate portion 23 is connected between the side plate portion 21 and the bottom of the fixing portion 22. In the illustrated embodiment, the fixing portion 22 is plate-shaped, so that the cross-section of the terminal body 20 of the second terminal 2 is U-shaped.

[0048] like Figures 1 to 7 As shown, in the illustrated embodiment, the insulating shell 3 has a pair of first side walls 31 opposite to each other in the first horizontal direction X, a slot 31a is formed in the first side wall 31, and the fixing portion 22 of the second terminal 2 is inserted into the slot 31a of the first side wall 31 to fix the second terminal 2 to the insulating shell 3.

[0049] like Figures 1 to 7 As shown, in the illustrated embodiment, the surfaces of the plate-shaped body 10 of the first terminal 1 and the side plate portion 21 of the second terminal 2 are perpendicular to the first horizontal direction X, and the elastic fingers 24 extend along the first horizontal direction X.

[0050] like Figures 1 to 7 As shown, in the illustrated embodiment, a through hole 10 a for allowing the elastic finger 24 to pass through is formed on the plate-shaped body 10 of the first terminal 1 , and the elastic finger 24 passes through the plate-shaped body 10 of the first terminal 1 via the through hole 10 a .

[0051] like Figures 1 to 7 As shown, in the illustrated embodiment, a plurality of through holes 10a are formed on the plate-shaped body 10 of the first terminal 1, and the plurality of through holes 10a are spaced apart on a second horizontal direction Y perpendicular to the first horizontal direction X. A plurality of elastic fingers 24 are formed on the side plate portion 21 of the second terminal 2, and the plurality of elastic fingers 24 pass through the plate-shaped body 10 of the first terminal 1 respectively through the plurality of through holes 10a.

[0052] like Figures 1 to 7 As shown, in the illustrated embodiment, the first terminal 1 further includes a soldering portion 12 , which is connected to the bottom of the plate-shaped body 10 and exposed through the bottom opening 303 of the insulating housing 3 for soldering to the circuit board 5 .

[0053] like Figures 1 to 7As shown, in the illustrated embodiment, the soldering portion 12 is plate-shaped, and the substrate portion 23 of the second terminal 2 is stacked on the top surface of the soldering portion 12 of the first terminal 1. The soldering portion 12 has a flat soldering bottom surface, so that the soldering portion 12 is suitable for soldering on the surface of the circuit board 5 in a surface mounting manner.

[0054] like Figures 1 to 7 As shown, in the illustrated embodiment, the insulating housing 3 further comprises a pair of second side walls 32 opposite to each other in a second horizontal direction Y perpendicular to the first horizontal direction X, and a support beam 302 connected between the bottoms of the pair of second side walls 32. A slot 301 for allowing the mating plug 4 to be inserted is formed on the top wall 33 of the insulating housing 3, and the support beam 302 faces the slot 301 in the vertical direction Z, and is used to support the end of the inserted mating plug 4.

[0055] like Figures 1 to 7 As shown, in the illustrated embodiment, the elastic arms 11 of a pair of first terminals 1 are symmetrically arranged on both sides of a symmetry plane P and extend obliquely relative to the symmetry plane P, so that the elastic arms 11 of the pair of first terminals 1 are V-shaped.

[0056] like Figures 1 to 7 As shown, in the illustrated embodiment, the elastic arm 11 of the first terminal 1 includes: an arm body 110, an arm root 111 and an arm end 112. The arm body 110 extends obliquely relative to the symmetry plane P. The arm root 111 is bent into an arc and connected between the arm body 110 and the upper end of the plate-like body 10. The arm end 112 is connected to the lower end of the arm body 110 and is bent at a predetermined angle relative to the arm body 110 in a direction away from the symmetry plane P.

[0057] like Figures 1 to 7 As shown, in the illustrated embodiment, the arm end portion 112 has a contact portion 11 a connected to the lower end of the arm body 110 , and the contact portion 11 a is bent into an arc and protrudes toward the symmetry plane P for electrical contact with the mating plug 4 .

[0058] like Figures 1 to 7 As shown, in the illustrated embodiment, when the mating plug 4 is inserted between the elastic arms 11 of a pair of first terminals 1, the elastic fingers 23 on the second terminals 2 abut against the side of the contact portion 11a that is opposite to the symmetry plane P.

[0059] like Figures 1 to 7 As shown, in the illustrated embodiment, the symmetry plane P is perpendicular to the first horizontal direction X. A plurality of separation grooves 11b are formed on the elastic arm 11 of the first terminal 1, and the plurality of separation grooves 11b are spaced apart in a second horizontal direction Y perpendicular to the first horizontal direction X, so that the elastic arm 11 is in a comb-tooth shape. In the illustrated embodiment, the separation grooves 11b extend from the arm body 110 of the elastic arm 11 to the end surface of the arm end 112 of the elastic arm 11.

[0060] like Figures 1 to 7 As shown, in the illustrated embodiment, the first terminal 1 and the second terminal are respectively an integral metal stamping part, and the insulating housing 2 is an integral injection molded part. In this way, the manufacturing cost can be reduced and the production efficiency can be improved.

[0061] like Figures 1 to 7 As shown, in another exemplary embodiment of the present invention, a connector assembly is also disclosed. The connector assembly includes: the aforementioned connector and a mating plug 4. The mating plug 4 is inserted between the elastic arms 11 of a pair of first terminals 1 of the connector to electrically contact the pair of first terminals 1.

[0062] like Figures 1 to 7 As shown, in the illustrated embodiment, the mating plug 4 includes: an insulating substrate 40, a first conductive pad 41 and a second conductive pad 42. The insulating substrate 40 has two opposite sides in its thickness direction. The first conductive pad 41 is formed on one side of the insulating substrate 40. The second conductive pad 42 is formed on the other side of the insulating substrate 40. The elastic arms 11 of a pair of first terminals 1 are electrically in contact with the first conductive pad 41 and the second conductive pad 42 on the mating plug 4, respectively.

[0063] like Figures 1 to 7 As shown, in the illustrated embodiment, the connector assembly further includes a circuit board 5, on the surface of which a first welding pad 51 and a second welding pad 52 are formed. The welding portions 12 of a pair of first terminals 1 are respectively welded to the first welding pad 51 and the second welding pad 52 of the circuit board 5.

[0064] In the aforementioned exemplary embodiments according to the present invention, the elastic finger 24 on the second terminal 2 can not only provide auxiliary contact pressure for the elastic arm 11 of the first terminal 1, but also balance the contact pressure during offset and skewed mating, so that a pair of first terminals 1 can also be stably and reliably electrically contacted with the mating plug 4 during offset and skewed mating, thereby greatly improving the electrical connection performance of the connector product.

[0065] In the above-mentioned various exemplary embodiments according to the present invention, a pair of first terminals 1 are electrically isolated from each other, and a pair of second terminals 2 are also electrically isolated from each other. Therefore, a pair of first terminals 1 of the connector of the present invention can be electrically connected to two different electrodes of a power source, respectively, which expands the application range of the connector.

[0066] Those skilled in the art will appreciate that the embodiments described above are exemplary and may be improved upon by those skilled in the art. The structures described in the various embodiments may be freely combined without causing any conflicts in structure or principle, and these changes should fall within the scope of protection of the present invention.

[0067] 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 implementations of the present invention and should not be construed as limiting the present invention.

[0068] 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 in the claims and their equivalents.

[0069] 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 reference signs in the claims shall not be construed as limiting the scope of the present invention.

Claims

1. A connector, characterized in that: include: Insulating housing (3); A pair of first terminals (1), housed in the insulating housing (3), facing each other and spaced apart from each other; and a pair of second terminals (2) housed in the insulating housing (3) and fixed to the insulating housing (3), The first terminal (1) comprises a plate-shaped body (10) and an elastic arm (11) connected to the plate-shaped body (10); the elastic arms (11) of the pair of first terminals (1) face each other and are used to clamp a mating plug (4) inserted therebetween. The second terminal (2) comprises a terminal body (20) and an elastic finger (24) connected to the terminal body (20); the elastic arm (11) and the terminal body (20) are respectively located on two sides of the plate-shaped body (10); The elastic fingers (24) of the pair of second terminals (2) respectively pass through the plate-shaped bodies (10) of the pair of first terminals (1) and are used to respectively abut against the elastic arms (11) of the pair of first terminals (1).

2. The connector according to claim 1, characterized in that: The plate-shaped body (10) of the first terminal (1) is suspended in the inner cavity of the insulating housing (3), so that both the plate-shaped body (10) and the elastic arm (11) of the first terminal (1) can be elastically deformed.

3. The connector according to claim 1, characterized in that: The terminal body (20) of the second terminal (2) comprises: a side plate portion (21) facing the plate-shaped body (10) of the first terminal (1); and a fixing portion (22) connected to the side plate portion (21) and fixed to the side wall of the insulating housing (3), The elastic fingers (24) are connected to the top of the side plate portion (21) and extend vertically relative to the side plate portion (21).

4. The connector according to claim 3, characterized in that: The side plate portion (21) of the second terminal (2) is suspended in the inner cavity of the insulating housing (3), so that the side plate portion (21) and the elastic finger (24) of the second terminal (2) can both be elastically deformed.

5. The connector according to claim 3, characterized in that: The terminal body (20) of the second terminal (2) further comprises: A base plate portion (23) is connected between the side plate portion (21) and the bottom of the fixing portion (22). The fixing portion (22) is plate-shaped, so that the cross section of the terminal body (20) of the second terminal (2) is U-shaped.

6. The connector according to claim 5, characterized in that: The insulating housing (3) has a pair of first side walls (31) opposite to each other in a first horizontal direction (X), a slot (31a) is formed in the first side wall (31), and the fixing portion (22) of the second terminal (2) is inserted into the slot (31a) of the first side wall (31) to fix the second terminal (2) to the insulating housing (3).

7. The connector according to claim 6, characterized in that: The surfaces of the plate-shaped body (10) of the first terminal (1) and the side plate portion (21) of the second terminal (2) are perpendicular to the first horizontal direction (X), and the elastic fingers (24) extend along the first horizontal direction (X).

8. The connector according to claim 7, characterized in that: A through hole (10a) allowing the elastic finger (24) to pass through is formed on the plate-shaped body (10) of the first terminal (1), and the elastic finger (24) passes through the plate-shaped body (10) of the first terminal (1) via the through hole (10a).

9. The connector according to claim 8, characterized in that: A plurality of through holes (10a) are formed on the plate-shaped body (10) of the first terminal (1), and the plurality of through holes (10a) are distributed at intervals on a second level (Y) perpendicular to the first horizontal direction (X); A plurality of elastic fingers (24) are formed on the side plate portion (21) of the second terminal (2), and the plurality of elastic fingers (24) respectively pass through the plate-shaped body (10) of the first terminal (1) via the plurality of through holes (10a).

10. The connector according to claim 5, characterized in that: The first terminal (1) further comprises: A welding portion (12) is connected to the bottom of the plate-shaped body (10) and exposed through the bottom opening (303) of the insulating shell (3), and is used for welding to a circuit board (5).

11. The connector according to claim 10, characterized in that: The welding portion (12) is plate-shaped, and the substrate portion (23) of the second terminal (2) is stacked on the top surface of the welding portion (12) of the first terminal (1); The soldering portion (12) has a flat soldering bottom surface, so that the soldering portion (12) is suitable for being soldered on the surface of the circuit board (5) in a surface mounting manner.

12. The connector according to claim 6, characterized in that: The insulating housing (3) further comprises a pair of second side walls (32) opposite to each other in a second horizontal direction (Y) perpendicular to the first horizontal direction (X), and a support beam (302) connected between the bottoms of the pair of second side walls (32); A slot (301) for allowing a mating plug (4) to be inserted is formed on the top wall (33) of the insulating housing (3), and the support beam (302) faces the slot (301) in a vertical direction (Z) and is used to support the end of the inserted mating plug (4).

13. The connector according to any one of claims 1 to 12, characterized in that: The elastic arms (11) of the pair of first terminals (1) are symmetrically arranged on both sides of a symmetry plane (P) and extend obliquely relative to the symmetry plane (P), so that the elastic arms (11) of the pair of first terminals (1) are V-shaped.

14. The connector according to claim 13, characterized in that: The elastic arm (11) of the first terminal (1) comprises: An arm body (110) extending obliquely relative to the symmetry plane (P); an arm root portion (111) which is bent into an arc shape and connected between the arm body (110) and the upper end of the plate-like body (10); and The arm end portion (112) is connected to the lower end of the arm body (110) and is bent at a predetermined angle relative to the arm body (110) in a direction away from the symmetry plane (P).

15. The connector according to claim 14, characterized in that: The arm end (112) has a contact portion (11a) connected to the lower end of the arm body (110); the contact portion (11a) is bent into an arc shape and protrudes toward the symmetry plane (P) for electrical contact with the mating plug (4).

16. The connector according to claim 15, characterized in that: When the mating plug (4) is inserted between the elastic arms (11) of the pair of first terminals (1), the elastic fingers (23) on the second terminal (2) abut against the side of the contact portion (11a) facing away from the symmetry plane (P).

17. The connector according to claim 14, characterized in that: The symmetry plane (P) is perpendicular to a first horizontal direction (X), and a plurality of separation grooves (11b) are formed on the elastic arm (11) of the first terminal (1), and the plurality of separation grooves (11b) are distributed at intervals in a second horizontal direction (Y) perpendicular to the first horizontal direction (X), so that the elastic arm (11) is in a comb-tooth shape.

18. The connector according to claim 15, characterized in that: The separation groove (11b) extends from the arm body (110) of the elastic arm (11) to the end surface of the arm end (112) of the elastic arm (11).

19. The connector according to claim 1, characterized in that: The first terminal (1) and the second terminal are respectively one-piece metal stamping parts, and the insulating housing (2) is an one-piece injection-molded part.

20. A connector assembly, characterized in that: include: The connector according to any one of claims 1 to 19; and A mating plug (4) is inserted between the elastic arms (11) of a pair of first terminals (1) of the connector to electrically contact the pair of first terminals (1).

21. The connector assembly according to claim 20, characterized in that: The mating plug (4) comprises: An insulating substrate (40) having two sides opposite to each other in a thickness direction thereof; A first conductive pad (41) formed on one side of the insulating substrate (40); and A second conductive pad (42) is formed on the other side of the insulating substrate (40), and the elastic arms (11) of the pair of first terminals (1) are respectively in electrical contact with the first conductive pad (41) and the second conductive pad (42) on the mating plug (4).

22. The connector assembly according to claim 21, characterized in that Also includes: A circuit board (5) having a first welding pad (51) and a second welding pad (52) formed on its surface, The welding portions (12) of the pair of first terminals (1) are respectively welded to a first welding pad (51) and a second welding pad (52) of the circuit board (5).

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