Electrical connector, electrical connector assembly, and electrical assembly

Abstract

Provided are an electrical connector, an electrical connector assembly, and an electrical assembly. The electrical connector of the electrical connector assembly and the electrical assembly includes: an insulating housing, at least one mounting portion, and at least one connecting terminal. The insulating housing includes: a main body portion, which passes through a mounting hole provided on the circuit board from a first surface of the circuit board in an insertion direction (and partially extends from a second surface of the circuit board, and two opposing mounting surfaces are formed on the outer surface of the main body portion; and at least one mounting portion, which is respectively provided on the mounting surfaces. One end of the connecting terminal extends into the insulating housing, and the other end of the connecting terminal is electrically connected to an electrical contact located on the second surface of the circuit board. Mounting mechanisms are respectively combined with the mounting portions to mount the electrical connector on the circuit board. By passing the insulating housing through the mounting hole on the circuit board and vertically mounting it on the circuit board using the mounting mechanism, the area of the circuit board occupied by the electrical connector assembly is reduced, and the length of the cable is shortened.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to an electrical connector, and more particularly to an electrical connector, an electrical connector assembly, and an electrical assembly suitable for connecting wires. Background Art

[0002] In electrical equipment such as a spotlight, to facilitate electrical connection of two wires, the two wires are usually connected to a plug connector and a socket connector respectively. The electrical connection of the two wires is achieved through the mutual cooperation between the plug connector and the socket connector.

[0003] Existing plug connectors and socket connectors both include a housing and connecting terminals mounted in the housing. Generally, the socket connector needs to be fixed to a mounting frame, such as a circuit board. Depending on the actual situation, the socket connector needs to be mounted on the mounting frame using surface mount technology (SMT) or dual in-line package (DIP) technology. However, for a projector lamp, due to its specific structure, it is usually necessary to horizontally mount the socket connector on the side of the circuit board facing the light source, which makes the area of the circuit board occupied by the electrical connector assembly relatively large. In addition, the cable connected to the plug connector needs to extend through the outside of the circuit board to the base of the projector lamp and pass through the base to connect to the external power supply. Therefore, space needs to be left between the projector lamp housing and the circuit board for the cable to pass through, which makes the projector lamp structure less compact and increases the length of the cable. Summary of the Invention

[0004] The technical problem solved by the present disclosure is to provide an electrical connector, an electrical connector assembly, and an electrical assembly, which can reduce the area of the circuit board occupied by the electrical connector assembly and shorten the length of the cable.

[0005] According to an embodiment of one aspect of the present disclosure, there is provided an electrical connector, comprising:

[0006] An insulating housing comprising:

[0007] a main body portion that passes through a mounting hole provided on the circuit board from a first surface of the circuit board in an insertion direction and partially protrudes from a second surface of the circuit board, and has two opposing mounting surfaces formed on an outer surface of the main body portion, and

[0008] At least one mounting portion, respectively disposed on the mounting surface;

[0009] at least one connecting terminal, one end of the connecting terminal extending into the insulating housing and the other end of the connecting terminal being electrically connected to an electrical contact located on the second surface of the circuit board; and

[0010] At least one mounting mechanism is respectively combined with the mounting portions to mount the electrical connector on the circuit board.

[0011] According to an electrical connector of one embodiment of the present disclosure, a receiving portion suitable for receiving an insertion portion of a mating connector is provided in the main body portion, the opening of the receiving portion is located on the side where the first surface of the circuit board is located, and a plurality of through holes are provided on the bottom wall of the receiving portion, and the connecting terminals extend into the receiving portion through the through holes respectively.

[0012] According to an electrical connector of one embodiment of the present disclosure, the mounting surface is formed on two opposite extension walls extending from the main body in the insertion direction, a groove is provided between the two extension walls, and the portion of the insulating shell located between the groove and the accommodating portion forms the bottom wall of the accommodating portion.

[0013] According to an electrical connector of one embodiment of the present disclosure, a reinforcement protrusion is provided on the outer side of the bottom wall, and the reinforcement protrusion is located between two adjacent through holes.

[0014] According to an electrical connector of an embodiment of the present disclosure, the connecting terminal includes:

[0015] a terminal body portion connected to the bottom wall of the accommodating portion and configured to extend through a through hole on the bottom wall of the accommodating portion;

[0016] an insert portion integrally connected to a first side of the terminal body portion and extending into the receiving portion of the insulating housing to electrically contact the mating terminal of the mating connector; and

[0017] A bending portion is integrally connected to a second side of the terminal body opposite to the first side and bent toward an upper portion of the terminal body, wherein a free end of the bending portion forms a bonding surface for electrically contacting an electrical contact on the circuit board.

[0018] According to an electrical connector of one embodiment of the present disclosure, at least one side of the main body is provided with at least one laterally protruding stopper.

[0019] According to an electrical connector of an embodiment of the present disclosure, at least one elastic piece is provided on the main body.

[0020] According to an electrical connector of an embodiment of the present disclosure, the connecting terminal is formed by punching a plate.

[0021] According to an electrical connector of an embodiment of the present disclosure, the mounting portion includes:

[0022] A connecting portion, one end of which is connected to the mounting surface.

[0023] According to an electrical connector of an embodiment of the present disclosure, the mounting portion further includes a retaining portion protruding radially outward from the other end of the connecting portion.

[0024] According to an electrical connector of an embodiment of the present disclosure, the mounting mechanism includes:

[0025] A mating mounting portion coupled to the connecting portion; and

[0026] The fixing portion is connected to the matching mounting portion and is configured to be connected to the circuit board.

[0027] According to an electrical connector of an embodiment of the present disclosure, the fixing portion includes a surface mounting portion perpendicular to the mating mounting portion, and the surface mounting portion can be mounted on the circuit board using surface mounting technology.

[0028] According to an electrical connector of an embodiment of the present disclosure, the fixing portion includes at least one plug-in portion extending from the mating mounting portion, and the plug-in portion can be plugged into a socket of a circuit board.

[0029] According to an electrical connector of an embodiment of the present disclosure, a blocking portion protruding laterally is provided at the end of the plug-in portion.

[0030] According to an electrical connector of one embodiment of the present disclosure, a coupling groove with a side opening is provided on the mating mounting portion, and the coupling groove is hung on the connecting portion.

[0031] According to an electrical connector of an embodiment of the present disclosure, at least one protrusion is provided on the coupling groove.

[0032] According to an electrical connector of an embodiment of the present disclosure, the mounting surface is located on an outer surface of the main body extending out of the second surface of the circuit board, and the fixing portion extends in a direction opposite to the insertion direction.

[0033] According to an electrical connector of an embodiment of the present disclosure, the mounting surface is located on an outer surface of the main body on the same side as the first surface of the circuit board, and the fixing portion extends in the same direction as the insertion direction.

[0034] According to an electrical connector of an embodiment of the present disclosure, a coupling groove is formed on at least one of the mounting surfaces to couple with a coupling portion of the mating connector.

[0035] According to another embodiment of the present disclosure, there is provided a connector assembly, comprising:

[0036] an electrical connector as described above; and

[0037] A mating connector is coupled to the electrical connector.

[0038] According to another embodiment of the present disclosure, there is provided an electrical component, comprising:

[0039] an electrical connector as described above; and

[0040] A circuit board is provided with a mounting hole for the electrical connector to pass through.

[0041] According to an embodiment of the present disclosure, the electrical connector further includes a mating connector combined with the electrical connector.

[0042] According to the electrical connectors, electrical connector assemblies and electrical assemblies described in the various embodiments of the present disclosure, the electrical connector assemblies and the electrical connectors of the electrical assemblies can be installed vertically on the circuit board by passing the main body of the insulating shell from the first surface of the circuit board through the mounting hole provided on the circuit board in the insertion direction and partially extending from the second surface of the circuit board, thereby reducing the area of the circuit board occupied by the electrical connector and the mating connector combined with it; in addition, the cable can be directly led out from the plug connector, avoiding the need to pass the wire from the outside of the circuit board, shortening the length of the cable, and making devices such as projection lamps using the electrical connector assembly more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The present disclosure will be further described in detail with reference to the accompanying drawings, in which:

[0044] Figure 1 is a perspective schematic diagram showing an electrical connector according to an exemplary embodiment of the present disclosure installed on a circuit board;

[0045] Figure 2 It shows Figure 1 A perspective schematic diagram of the electrical connector and the mating connector when mounted on a circuit board;

[0046] Figure 3 FIG1 is a cross-sectional view showing a connector assembly according to an exemplary embodiment of the present disclosure mounted on a circuit board, wherein a mating connector in the connector assembly is connected to a cable.

[0047] Figure 4 is a perspective schematic diagram showing an insulating housing according to an exemplary embodiment of the present disclosure;

[0048] Figure 5is a perspective schematic diagram showing an electrical connector according to an exemplary embodiment of the present disclosure;

[0049] Figure 6 is a perspective schematic diagram showing a connection terminal according to an exemplary embodiment of the present disclosure;

[0050] Figure 7 It shows Figure 1 A three-dimensional schematic diagram of the circuit board shown;

[0051] Figure 8 is a cross-sectional view showing a mounting portion on an insulating housing;

[0052] Figure 9 is a perspective schematic diagram showing a mounting mechanism of an electrical connector according to an exemplary embodiment of the present disclosure;

[0053] Figure 10 is a perspective schematic diagram showing an electrical connector and a mating connector according to another exemplary embodiment of the present disclosure when mounted on a circuit board;

[0054] Figure 11 is a perspective schematic diagram showing an electrical connector and a mating connector according to yet another exemplary embodiment of the present disclosure when mounted on a circuit board;

[0055] Figure 12 It shows Figure 1 A three-dimensional schematic diagram of the mounting mechanism shown. DETAILED DESCRIPTION

[0056] While the present disclosure will be fully described with reference to the accompanying drawings that contain preferred embodiments of the present disclosure, it should be understood before this description that one of ordinary skill in the art may modify the disclosure described herein while still achieving the technical benefits of the present disclosure. Therefore, it should be understood that the above description is intended to be a broad disclosure for one of ordinary skill in the art and is not intended to limit the exemplary embodiments described herein.

[0057] According to the overall inventive concept of the present disclosure, there is provided an electrical connector, comprising: an insulating housing, at least one connecting terminal, and at least one mounting mechanism. An insulating housing comprises a main body portion, wherein the main body portion extends from a first surface of a circuit board through a mounting hole provided on the circuit board in an insertion direction and partially extends from a second surface of the circuit board, and two opposite mounting surfaces are formed on the outer surface of the main body portion. At least one mounting portion is respectively provided on the mounting surfaces. One end of at least one connecting terminal extends into the insulating housing, and the other end of the connecting terminal is electrically connected to an electrical contact located on the second surface of the circuit board. At least one mounting mechanism is respectively combined with the mounting portion to mount the electrical connector on the circuit board.

[0058] According to another general inventive concept of the present disclosure, an electrical connector assembly is provided, including an electrical connector and a mating connector combined with the electrical connector.

[0059] According to another general inventive concept of the present disclosure, an electrical assembly is provided, including a circuit board and an electrical connector, wherein the circuit board is provided with a mounting hole for the electrical connector to pass through.

[0060] Figure 1 is a perspective schematic diagram showing an electrical connector according to an exemplary embodiment of the present disclosure when installed on a circuit board; Figure 2 It shows Figure 1 A perspective schematic diagram of the electrical connector and the mating connector when mounted on a circuit board; Figure 3 FIG1 is a cross-sectional view showing a connector assembly according to an exemplary embodiment of the present disclosure mounted on a circuit board, wherein a mating connector in the connector assembly is connected to a cable.

[0061] like Figure 1-3 As shown, an electrical connector 100 according to an exemplary embodiment of the present disclosure includes, for example, a receptacle connector mounted on a circuit board 200. The electrical connector 100 is combined with a mating connector (e.g., a plug connector) 400 electrically connected to a cable 300, thereby enabling the cable 300 to supply power or transmit electrical signals to a circuit arranged on the circuit board 200. The electrical connector 100 of the embodiment of the present disclosure includes: an insulating housing 10, for example, made of a plastic material; at least one (two are shown in the figure) connecting terminal 3, for example, made of copper or stainless steel; and at least one (two are shown in the figure) mounting mechanism 4, for example, made of copper or stainless steel.

[0062] Figure 4 is a perspective schematic diagram showing an insulating housing according to an exemplary embodiment of the present disclosure; Figure 5 is a perspective schematic diagram showing an electrical connector according to an exemplary embodiment of the present disclosure; Figure 6 7 is a perspective view showing a connection terminal according to an exemplary embodiment of the present disclosure; Figure 1 A three-dimensional schematic diagram of the circuit board shown; Figure 8 is a cross-sectional view showing a mounting portion on an insulating housing; Figure 9 3D is a schematic perspective view showing a mounting mechanism of an electrical connector according to an exemplary embodiment of the present disclosure.

[0063] like Figure 1-9As shown, in one embodiment, the electrical connector includes an insulating housing 10, which includes: a main body 1 and two mounting portions 2. The main body 1 has a roughly rectangular shape and extends from the first surface of the circuit board 200 through the mounting hole 201 provided on the circuit board 200 in the insertion direction and partially extends from the second surface of the circuit board 200. The outer surface of the main body 1 forms two opposing mounting surfaces 11. The two mounting portions 2 are respectively provided on the mounting surfaces 11. One end of the two connecting terminals 3 extends into the insulating housing 10, and the other end of the connecting terminals 3 is electrically connected to the electrical contacts located on the second surface of the circuit board 200. Two mounting mechanisms 4 are respectively combined with the mounting portions 2 to mount the electrical connector 100 on the circuit board 200.

[0064] like Figure 1-5 As shown, in an exemplary embodiment, a receiving portion 12 suitable for receiving the insertion portion of the mating connector 400 is provided in the main body 1, and the opening of the receiving portion 12 is located on the side where the first surface of the circuit board 200 is located. A plurality of through holes are provided on the bottom wall of the receiving portion 12, and the connecting terminals 3 extend into the receiving portion 12 through the through holes respectively to be electrically connected with the mating terminals of the mating connector 400 extending into the receiving portion 12.

[0065] like Figure 3 and Figure 4 As shown, in an exemplary embodiment, the mounting surface 11 is formed on two opposing extension walls 15 extending from the main body 1 in the insertion direction. A groove 13 is provided at one end of the insulating housing 10, between the two extension walls 15. The portion of the insulating housing 10 located between the groove 13 and the accommodating portion 12 forms the bottom wall of the accommodating portion 12. The provision of the groove 13 prevents contact with the connecting terminals 3 extending from the bottom wall of the accommodating portion 12. In addition, a reinforcing protrusion 14 is provided on the bottom wall of the accommodating portion 12. This reinforcing protrusion 14 is located between two adjacent through-holes to enhance the robustness of the insulating housing 10 and prevent the two connecting terminals 3 from contacting each other.

[0066] like Figure 1 、 Figure 3 、 Figure 6 and Figure 7As shown, in an exemplary embodiment, each connecting terminal 3 includes a terminal body 31, an insertion portion 32, and a bend portion 33. The terminal body 31 is configured to connect to the bottom wall of the accommodating portion 12 and is configured to extend through a through-hole in the bottom wall. The insertion portion 32 is integrally connected to a first side of the terminal body 31 and extends into the accommodating portion 12 of the insulating housing 10 to electrically contact the mating terminal of the mating connector 400. The bend portion 33 is integrally connected to a second side of the terminal body 31, opposite the first side, and bends toward the upper portion of the terminal body 31. The free end of the bend portion 33 forms a mating surface 34 that electrically contacts the electrical contact 202 on the circuit board 200. During installation, the insulating housing 10 must first be inserted through the mounting hole 201 in the circuit board 200 and secured to the circuit board 200 using the mounting mechanism 4. The connecting terminal 3 is then inserted into the insulating housing 10.

[0067] like Figure 6 As shown, in an exemplary embodiment, a plurality of laterally protruding stoppers 35 are provided on both sides of the terminal body 31 of the connecting terminal 3 to prevent the connecting terminal 3 from being separated from the insulating housing 10 when plugging or unplugging the connector 400. It should be noted that those skilled in the art should understand that in some other embodiments of the present disclosure, one or more stoppers 35 may also be provided on one side of the terminal body 31.

[0068] like Figure 6 As shown, in an exemplary embodiment, at least one elastic piece 36 is provided on the terminal body 31 , so that when the connecting terminal 3 is inserted into the insulating housing 10 , the connecting terminal 3 can be reliably fixed in the insulating housing 3 .

[0069] In one embodiment, the connection terminal 3 is formed by punching a plate of a predetermined shape. That is, the connection terminal 3 is formed by, for example, forming the plate into a predetermined shape by punching and then performing a predetermined bending process by punching.

[0070] like Figure 1 and Figure 8 As shown, in an exemplary embodiment, the mounting portion 2 includes a connecting portion 21, one end of which is connected to the mounting surface 11. Furthermore, the mounting portion 2 also includes a retaining portion 22 that protrudes radially outward from the other end of the connecting portion 21. Thus, when the mounting mechanism 4 is mounted on the connecting portion 21, the retaining portion 22 can prevent the mounting mechanism 4 from sliding off the connecting portion 21.

[0071] like Figure 1 and Figure 9As shown, the mounting mechanism 4 includes a mating mounting portion 41 that engages with the connecting portion 21 of the mounting portion 2; and a fixing portion that is connected to the mating mounting portion 41 and is configured to be connected to the circuit board 200. The mating mounting portion 41 is provided with a laterally open mating slot 44 that engages with the connecting portion 42. The provision of the mating mounting portion 41 allows the mating mounting portion 41 to be attached to the connecting portion 21 from various directions. The mating slot 44 is provided with at least one protrusion 45 that engages with the connecting portion 21 of the mounting portion to prevent the mating mounting portion 41 from detaching from the connecting portion 21.

[0072] exist Figure 9 In the embodiment shown, the fixing portion adopts a surface mount portion 42 perpendicular to the mating mounting portion 41. The surface mount portion can be mounted on the pad of the circuit board 200 using surface mount technology (SMT), thereby mechanically mounting the electrical connector 100 on the circuit board 200.

[0073] exist Figure 1 In the illustrated embodiment, the mounting surface 11 is located on the outer surface of the main body 1 extending beyond the second surface of the circuit board 200 , and the fixing portion of the mounting mechanism 4 extends in a direction opposite to the insertion direction.

[0074] Figure 10 This is a perspective schematic diagram showing an electrical connector and a mating connector according to another exemplary embodiment of the present disclosure installed on a circuit board. In this embodiment, mounting surface 11 is located on the outer surface of main body 1 on the same side as the first surface of circuit board 200, and the fixing portion of mounting mechanism 4 extends in the same direction as the insertion direction.

[0075] Figure 11 FIG1 is a perspective schematic diagram showing an electrical connector and a mating connector according to another exemplary embodiment of the present disclosure when installed on a circuit board. Figure 12 It shows Figure 11 A three-dimensional schematic diagram of the mounting mechanism shown.

[0076] exist Figure 11 and Figure 12 In the illustrated embodiment, the mounting mechanism 4 includes a mating mounting portion 41 coupled to the connecting portion 21 of the mounting portion 2; and a fixing portion connected to the mating mounting portion 41 and configured to be connected to the circuit board 200. The fixing portion includes at least one plugging portion 43 extending parallel to the mating mounting portion 41. The plugging portion 43 is capable of being plugged into a socket on the circuit board 200, thereby mechanically mounting the electrical connector 100 to the circuit board 200. A laterally protruding blocking portion 431 is provided at the distal end of the plugging portion 43. The blocking portion 431 engages with the edge of the socket on the circuit board 200 to prevent the plugging portion 43 from being detached from the circuit board 200.

[0077] Furthermore, in an exemplary embodiment, coupling grooves are formed on both opposing side walls of the accommodating portion 12 to engage with the coupling portion on the outer surface of the mating connector 400. When the electrical connector 100 is coupled to the mating connector 400, the coupling grooves snap-fit with the coupling portion, thereby locking the electrical connector 100 and the mating connector 400 together and preventing them from being separated.

[0078] According to another embodiment of the present disclosure, Figure 2 、 Figure 3 and Figure 10 As shown, an electrical connector assembly is provided, comprising an electrical connector 100 as described above and a mating connector 400 coupled to the electrical connector 100. When the mating connector 400 is inserted into the receiving portion 12 of the electrical connector 100, the connecting terminals 3 of the mating connector 400 abut against the connecting terminals of the electrical connector 100, thereby enabling the cable 300 electrically connected to the mating connector 400 to supply power or transmit electrical signals to the circuit arranged on the circuit board 200.

[0079] According to another embodiment of the present disclosure, an electrical assembly is provided, comprising a circuit board 200 and an electrical connector 100 as described above. The circuit board 200 is provided with a mounting hole 202 through which the power supply connector assembly passes. The electrical connector 100 includes an insulating housing 10, which comprises a main body 1 and two mounting portions 2. The main body 1 has a generally rectangular shape and extends from a first surface of the circuit board 200 through a mounting hole 201 provided in the circuit board 200 in the insertion direction and partially extends from a second surface of the circuit board 200. The outer surface of the main body 1 forms two opposing mounting surfaces 11. The two mounting portions 2 are respectively disposed on the mounting surfaces 11. Two connecting terminals 3 extend into the insulating housing 10 in a direction generally perpendicular to the plane of the circuit board 200. One end of the connecting terminals 3 is electrically connected to an electrical contact located on the second surface of the circuit board 200. Two mounting mechanisms 4 are respectively coupled to the mounting portions 2 to mount the electrical connector 100 on the circuit board 200.

[0080] In one embodiment, the electrical component also includes a mating connector 400 combined with the electrical connector 100. When the mating connector 400 is inserted into the accommodating portion 12 of the electrical connector 100, the connecting terminal 3 of the mating connector 400 abuts against the connecting terminal of the electrical connector 100, so that the cable 300 electrically connected to the mating connector 400 supplies power to the circuit arranged on the circuit board 200 or transmits electrical signals.

[0081] According to the electrical components, electrical connector components and electrical connectors described in the various embodiments of the present disclosure, the electrical connectors of the electrical components and electrical connector components can be vertically mounted on the circuit board by passing the main body of the insulating shell from the first surface of the circuit board through the mounting hole provided on the circuit board in the insertion direction and partially extending from the second surface of the circuit board, thereby reducing the area of the circuit board occupied by the electrical connector and the mating connector combined with it; in addition, the cable can be directly led out from the plug connector, avoiding the need to pass the wire from the outside of the circuit board, shortening the length of the cable, and making devices such as projection lamps using the electrical connector assembly more compact.

[0082] Those skilled in the art will understand 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, thereby realizing more electrical connectors, electrical connector assemblies, and electrical assemblies on the basis of solving the technical problems disclosed in the present invention.

[0083] After describing the preferred embodiments of the present disclosure in detail, those skilled in the art will clearly understand that various changes and modifications may be made without departing from the scope and spirit of the appended claims, and that the present disclosure is not limited to the exemplary embodiments described in the specification.

Claims

1. An electrical connector, comprising: An insulating housing (10) comprising: a main body (1), which extends from a first surface of a circuit board (200) through a mounting hole (202) provided on the circuit board in an insertion direction and partially protrudes from a second surface of the circuit board, and has two opposing mounting surfaces (11) formed on an outer surface of the main body, and At least one mounting portion (2) is respectively arranged on the mounting surface; at least one connecting terminal (3), one end of the connecting terminal extending into the insulating housing, the other end of the connecting terminal being electrically connected to an electrical contact located on the second surface of the circuit board; and At least one mounting mechanism (4), each of which is combined with the mounting portion to mount the electrical connector on the circuit board, wherein a receiving portion (12) adapted to receive an insertion portion of a mating connector (400) is provided in the main body, the opening of the receiving portion being located on the side where the first surface of the circuit board is located, a plurality of through holes being provided on the bottom wall of the receiving portion, the connecting terminals respectively extending through the through holes into the receiving portion, wherein the mounting surface is formed on two opposite extension walls extending from the main body in the insertion direction, a groove (13) being provided between the two extension walls, and a portion of the insulating shell located between the groove and the receiving portion forming the bottom wall of the receiving portion.

2. The connector according to claim 1, wherein A reinforcement protrusion (14) is provided on the outer side of the bottom wall, and the reinforcement protrusion is located between two adjacent through holes.

3. The electrical connector according to claim 2, wherein: The connecting terminal includes: a terminal main body portion (31), the terminal main body portion being connected to the bottom wall of the accommodating portion and being configured to extend through a through hole on the bottom wall of the accommodating portion; an inserting portion (32) integrally connected to a first side of the terminal body portion and extending into the receiving portion of the insulating housing to electrically contact the mating terminal of the mating connector; and A bending portion (33) is integrally connected to a second side of the terminal main body opposite to the first side and is bent toward an upper portion of the terminal main body, wherein a free end of the bending portion forms a bonding surface (34) that is in electrical contact with an electrical contact on the circuit board.

4. The electrical connector according to claim 3, wherein: At least one side of the terminal main body is provided with at least one laterally protruding stopper (35).

5. The electrical connector according to claim 3 or 4, wherein: At least one spring piece (36) is provided on the terminal main body.

6. The electrical connector according to any one of claims 1 to 4, wherein: The connecting terminal is formed by punching a plate.

7. The electrical connector according to any one of claims 1 to 4, wherein: The mounting portion includes: A connecting portion (21), one end of which is connected to the mounting surface.

8. The electrical connector according to claim 7, wherein: The mounting portion further comprises a retaining portion (22) protruding radially outward from the other end of the connecting portion.

9. The electrical connector according to claim 7, wherein: The mounting mechanism comprises: A matching mounting portion (41) coupled to the connecting portion; and The fixing portion is connected to the matching mounting portion and is configured to be connected to the circuit board.

10. The electrical connector according to claim 9, wherein: The fixing portion comprises a surface mounting portion (42) perpendicular to the matching mounting portion, and the surface mounting portion can be mounted on the circuit board using a surface pasting technique.

11. The electrical connector according to claim 9, wherein The fixing portion comprises at least one plug-in portion (43) extending from the matching mounting portion, and the plug-in portion can be plugged into a plug hole of a circuit board.

12. The electrical connector according to claim 11, wherein A laterally protruding blocking portion (431) is provided at the end of the plug-in portion.

13. The electrical connector according to claim 9, wherein The matching installation portion is provided with a laterally open coupling groove (44), and the coupling groove is hung on the connecting portion.

14. The electrical connector according to claim 13, wherein: At least one protrusion (45) is provided on the coupling groove.

15. The electrical connector according to any one of claims 9 to 14, wherein: The mounting surface is located on an outer surface of the main body portion extending out of the second surface of the circuit board, and the fixing portion extends in a direction opposite to the insertion direction.

16. The electrical connector according to any one of claims 9 to 14, wherein: The mounting surface is located on an outer surface of the main body portion on the same side as the first surface of the circuit board, and the fixing portion extends in the same direction as the insertion direction.

17. The electrical connector according to any one of claims 1-4 and 8-14, wherein: A coupling groove is formed on at least one of the mounting surfaces to couple with a coupling portion of the mating connector.

18. A connector assembly comprising: An electrical connector according to any one of claims 1 to 17; as well as A mating connector is coupled to the electrical connector.

19. An electrical assembly comprising: An electrical connector according to any one of claims 1 to 17; as well as A circuit board is provided with a mounting hole for the electrical connector to pass through.

20. The electrical assembly of claim 19, wherein: Also included is a mating connector coupled to the electrical connector.

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