Electric connector and electronic equipment

Abstract

The embodiment of the utility model discloses an electric connector and an electronic device, the electric connector comprises a first terminal assembly, the first terminal assembly comprises a first connecting terminal, a wire harness, a first insulator, a second insulator and a third insulator, the wire harness is electrically connected with the first connecting terminal, and the second insulator is electrically connected with the third insulator. The first insulator wraps the portion, electrically connected with the wire harness, of the first connecting terminal, the second insulator comprises an insulating portion and a buffering portion which are connected, the insulating portion is stacked on the first insulator, the buffering portion wraps the joint of the first insulator and the wire harness, the third insulator is provided with a groove and wraps the first insulator and the insulating portion, and the third insulator is provided with a groove. The first connecting terminal at least partially penetrates through the first insulator and the third insulator and extends to the groove. Through the above mode, the buffer part is used for releasing the stress at the connection part of the first connection terminal and the wire harness when the wire harness is bent, thereby reducing the cracking probability of the first insulator wrapping the connection part of the first connection terminal and the wire harness, and improving the waterproof performance of the electric connector.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to an electrical connector and electronic device. Background Technology

[0002] An electrical connector is a type of connector used to transmit electrical signals between different electronic devices. Electrical connectors typically consist of connecting terminals and a wire harness. Currently, the connecting terminals and wire harness are generally connected electrically first through crimping, and then injection molded together to achieve a unified injection molding process. However, when electrical connectors are subjected to repeated bending during long-term use, the bending stress concentrates at the connection point between the connecting terminals and the wire harness. This can easily cause fatigue and cracking in the injection-molded portion at the connection point, leading to a reduction in the connector's waterproof performance. Utility Model Content

[0003] The present invention aims to provide an electrical connector and electronic device that can reduce the probability of cracking of the injection-molded part at the connection between the connection terminal and the wire harness, and improve the waterproof performance of the electrical connector.

[0004] To solve the above-mentioned technical problems, one technical solution adopted in this utility model embodiment is: to provide an electrical connector, including a first terminal assembly, the first terminal assembly including a first connecting terminal, a wire harness, a first insulator, a second insulator and a third insulator, the wire harness being electrically connected to the first connecting terminal, the first insulator covering the portion where the first connecting terminal and the wire harness are electrically connected, the second insulator including an insulating portion and a buffer portion connected together, the insulating portion being stacked on the first insulator, the buffer portion covering the connection between the first insulator and the wire harness, the buffer portion being used to release stress at the connection between the first connecting terminal and the wire harness when the wire harness is bent, the third insulator being provided with a groove, the third insulator covering the insulating portions of the first insulator and the second insulator, the first connecting terminal at least partially penetrating the first insulator and the third insulator and extending to the groove.

[0005] Optionally, the buffer portion has a tapered cross-section along the length extension direction of the wire harness.

[0006] Optionally, the buffer portion is provided with a plurality of notches, the plurality of notches being evenly spaced along a first direction, and the plurality of notches being staggered along the first direction, wherein the first direction is the axial direction of the buffer portion.

[0007] Optionally, the first insulator has a limiting portion on the side opposite to the groove, and the second insulator has a first limiting hole in the insulating portion, with the limiting portion inserted into the first limiting hole.

[0008] Optionally, the limiting portion at least partially penetrates the first limiting hole, and the third insulator is provided with a second limiting hole on the side opposite to the groove. The second limiting hole is aligned with the first limiting hole, and the portion of the limiting portion that penetrates the first limiting hole is inserted into the second limiting hole.

[0009] Optionally, the electrical connector further includes a second terminal assembly, which includes a second connecting terminal and a fourth insulator. The fourth insulator has a protrusion for insertion into the groove. The fourth insulator covers the second connecting terminal. One end of the second connecting terminal passes through the fourth insulator and extends to the protrusion. The other end of the second connecting terminal passes through the fourth insulator on the side opposite to the protrusion. The other end of the second terminal assembly is used for electrical connection to a circuit board. When the protrusion is inserted into the groove, the first connecting terminal is electrically connected to the second connecting terminal.

[0010] Optionally, the electrical connector further includes a locking assembly, which includes a first screw and a second screw. The third insulator has a through hole, and the second screw is embedded in the fourth insulator. The first screw is used to thread through the through hole and screw onto the second screw, so that the third insulator is locked to the fourth insulator.

[0011] Optionally, the electrical connector further includes a seal, wherein the fourth insulator has a sealing groove at the periphery of the protrusion, the sealing groove being annularly arranged, and the seal is wound around the sealing groove, the seal being used to compress and seal between the groove and the protrusion when the first screw is screwed onto the second screw.

[0012] Optionally, the third insulator is provided with a positioning part, and the fourth insulator is provided with a positioning hole. The positioning part is used to be inserted into the positioning hole when the protrusion is inserted into the groove.

[0013] To solve the above-mentioned technical problems, another technical solution adopted in this utility model embodiment is to provide an electronic device including the above-mentioned electrical connector.

[0014] The beneficial effects of this utility model embodiment are as follows: Unlike the prior art, this utility model embodiment provides an electrical connector, including a first terminal assembly. The first terminal assembly includes a first connecting terminal, a wire harness, a first insulator, a second insulator, and a third insulator. The wire harness is electrically connected to the first connecting terminal. The first insulator covers the portion where the first connecting terminal and the wire harness are electrically connected. The second insulator includes an insulating portion and a buffer portion connected together. The insulating portion is stacked on the first insulator. The buffer portion covers the connection between the first insulator and the wire harness. The third insulator is provided with a groove. The third insulator covers the insulating portions of the first and second insulators. The first connecting terminal at least partially penetrates the first insulator and the third insulator and extends into the groove.

[0015] In the above manner, the buffer portion of this utility model embodiment is used to release the stress at the connection between the first connecting terminal and the wire harness when the wire harness is bent, thereby reducing the probability of cracking of the first insulator covering the connection between the first connecting terminal and the wire harness, that is, reducing the probability of cracking of the injection-molded part at the connection between the first connecting terminal and the wire harness, thereby improving the waterproof performance of the first terminal assembly and improving the waterproof performance of the electrical connector. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the specific embodiments of this utility model or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0017] Figure 1 This is a schematic diagram of the overall structure of the electrical connector provided in this embodiment of the utility model. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the overall structure of the first terminal assembly of the electrical connector provided in this embodiment of the present invention. Figure 1 ;

[0019] Figure 3 This is a schematic diagram of the overall structure of the first terminal assembly of the electrical connector provided in this embodiment of the present invention. Figure 2 ;

[0020] Figure 4 This is a schematic diagram of the overall structure of the first terminal assembly of the electrical connector provided in this embodiment of the present invention. Figure 3 ;

[0021] Figure 5 This is a schematic diagram of the overall structure of the electrical connector provided in this embodiment of the utility model. Figure 2 ;

[0022] Figure 6This is a schematic diagram of the overall structure of the second terminal assembly of the electrical connector provided in this embodiment of the present invention. Figure 1 ;

[0023] Figure 7 This is a schematic diagram of the overall structure of the second terminal assembly of the electrical connector provided in this embodiment of the present invention. Figure 2 ;

[0024] Figure 8 This is a schematic diagram of the overall structure of the electrical connector provided in this embodiment of the utility model. Figure 3 .

[0025] Explanation of reference numerals in the attached figures:

[0026] 1 First terminal assembly, 11 First connecting terminal, 111 Main board, 112 First busbar, 12 Wire harness, 121 Bare conductor part, 122 Insulated wire part, 13 First insulator, 131 Limiting part, 14 Second insulator, 141 Insulating part, 142 Buffer part, 1421 Notch, 143 First limiting hole, 15 Third insulator, 151 Groove, 152 Second limiting hole, 153 Through hole, 154 Positioning part;

[0027] 2 Second terminal assembly, 21 Second connecting terminal, 211 Second row of females, 22 Fourth insulator, 221 Protrusion, 222 Sealing groove, 223 Positioning hole, 224 Positioning structure, 225 Through groove, 226 Weight reduction hole;

[0028] 3 locking assembly, 31 first screw connector, 32 second screw connector;

[0029] 4. Seals;

[0030] 100 electrical connector. Detailed Implementation

[0031] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0033] An electrical connector is a type of connector used to transmit electrical signals between different electronic devices. Electrical connectors typically consist of connecting terminals and a wire harness. Currently, the connecting terminals and wire harness are generally connected electrically first through crimping, and then injection molded together to achieve a unified injection molding process. However, when electrical connectors are subjected to repeated bending during long-term use, the bending stress concentrates at the connection point between the connecting terminals and the wire harness. This can easily cause fatigue and cracking in the injection-molded portion at the connection point, leading to a reduction in the connector's waterproof performance.

[0034] Based on this, the present invention provides an embodiment of an electrical connector 100 that can improve waterproof performance.

[0035] To facilitate the reader's understanding of the concept of this utility model embodiment, the specific structure of the electrical connector 100 is described below:

[0036] Please see Figures 1 to 3 The electrical connector 100 includes a first terminal assembly 1, which includes a first connecting terminal 11, a wire harness 12, a first insulator 13, a second insulator 14, and a third insulator 15. The wire harness 12 is electrically connected to the first connecting terminal 11. The first insulator 13 covers the portion where the first connecting terminal 11 and the wire harness 12 are electrically connected. The second insulator 14 includes an insulating portion 141 and a buffer portion 142 connected to each other. The insulating portion 141 is stacked on the first insulator 13. The buffer portion 142 covers the connection between the first insulator 13 and the wire harness 12. The third insulator 15 is provided with a groove 151. The third insulator 15 covers the insulating portion 141 of the first insulator 13 and the second insulator 14. The first connecting terminal 11 at least partially penetrates the first insulator 13 and the third insulator 15 and extends to the groove 151.

[0037] In the above manner, the buffer portion 142 of this embodiment of the invention is used to release the stress at the connection between the first connecting terminal 11 and the wire harness 12 when the wire harness 12 is bent, thereby reducing the probability of cracking of the first insulator 13 covering the connection between the first connecting terminal 11 and the wire harness 12, that is, reducing the probability of cracking of the injection-molded portion at the connection between the first connecting terminal 11 and the wire harness 12, thereby improving the waterproof performance of the first terminal assembly 1 and the waterproof performance of the electrical connector 100. In addition, in the above manner, the first insulator 13, the second insulator 14 and the third insulator 15 achieve multiple seals, so that except for the part of the first connecting terminal 11 extending into the groove 151 which is at risk of water ingress, the rest is free from the risk of water ingress.

[0038] Regarding the first connection terminal 11 described above, please refer to some embodiments. Figures 2 to 4 The first connection terminal 11 includes a main board 111 and a first row of females 112. The first row of females 112 is soldered to the bottom surface of the main board 111. The wire harness 12 includes a bare conductor portion 121 and an insulated wire portion 122 connected to each other. The bare conductor portion 121 is soldered to the top surface of the main board 111. The first row of females 112 and the bare conductor portion 121 are electrically connected through the main board 111 so that the wire harness 12 and the first connection terminal 11 are electrically connected. The first insulator 13 covers the main board 111, the first row of females 112, the bare conductor portion 121 and the connection between the bare conductor portion 121 and the insulated wire portion 122. The first row of females 112 at least partially penetrates the first insulator 13 and the third insulator 15 and extends to the groove 151.

[0039] In some embodiments, the first insulator 13 is formed by injection molding.

[0040] In some embodiments, the second insulator 14 is formed by injection molding.

[0041] Furthermore, regarding the second insulator 14 described above, in some embodiments, please refer to... Figure 2 The buffer section 142 has a tapered cross-section along the length of the wire harness 12. In this manner, the tapered buffer section 142 can gradually disperse bending stress and guide its release during bending, avoiding stress concentration and improving the buffering effect.

[0042] Furthermore, regarding the second insulator 14 described above, in some embodiments, please refer to... Figure 3 and Figure 4The buffer portion 142 is provided with a plurality of notches 1421, which are evenly spaced along a first direction and staggered along the first direction. Specifically, the notches 1421 are arc-shaped, with the bottom of the arc-shaped notches 1421 farther from the insulating portion 141 connected to the surface of the insulating layer of the wire harness 12, and the bottom of the arc-shaped notches 1421 closer to the insulating portion 141 not connected to the surface of the insulating layer of the wire harness 12. It is understood that the notches 1421 include, but are not limited to, being arc-shaped. For example, in some other embodiments, the arc-shaped notches 1421 are rectangular, V-shaped, U-shaped, wedge-shaped, or other shapes. In this way, the notches 1421 can improve the flexibility of the buffer portion 142 and reduce its rigidity, so that the buffer portion 142 has better deformation capacity when bent and can better absorb and disperse bending stress. Furthermore, the staggered arrangement described above allows the bending stress to be dispersed in different directions, forming a mechanism for releasing bending stress in multiple directions, thus preventing the bending stress from concentrating in the same direction and ensuring a balanced release of bending stress.

[0043] In some embodiments, the third insulator 15 is formed by injection molding.

[0044] Regarding the first insulator 13 and the second insulator 14 described above, please refer to [link / reference] in some embodiments. Figures 2 to 4 A limiting portion 131 is provided on the side of the first insulator 13 facing away from the groove 151, and a first limiting hole 143 is provided on the insulating portion 141 of the second insulator 14, with the limiting portion 131 inserted into the first limiting hole 143. In this way, the limiting portion 131 is inserted into the first limiting hole 143, which can prevent relative displacement between the first insulator 13 and the second insulator 14, improve the stability between the first insulator 13 and the second insulator 14, and help improve the overall stability of the first terminal assembly 1.

[0045] Regarding the first insulator 13, the second insulator 14, and the third insulator 15 described above, please refer to [link to relevant documentation] in some embodiments. Figures 2 to 4 The limiting portion 131 at least partially penetrates the first limiting hole 143. A second limiting hole 152 is provided on the side of the third insulator 15 away from the groove 151. The second limiting hole 152 is aligned with the first limiting hole 143, and the portion of the limiting portion 131 penetrating the first limiting hole 143 is inserted into the second limiting hole 152. In this manner, the limiting portion 131 penetrating the first limiting hole 143 and inserting into the second limiting hole 152 prevents relative displacement between the first insulator 13, the second insulator 14, and the third insulator 15, improving the stability between them and further enhancing the overall stability of the first terminal assembly 1.

[0046] Please see Figures 5 to 7 The electrical connector 100 also includes a second terminal assembly 2, which includes a second connecting terminal 21 and a fourth insulator 22. The fourth insulator 22 is provided with a protrusion 221 for insertion into a groove 151. The fourth insulator 22 covers the second connecting terminal 21. One end of the second connecting terminal 21 passes through the fourth insulator 22 and extends to the protrusion 221. The other end of the second connecting terminal 21 passes through the fourth insulator 22 on the side away from the protrusion 221. The other end of the second terminal assembly 2 is used for electrical connection with the circuit board. When the protrusion 221 is inserted into the groove 151, the first connecting terminal 11 is electrically connected to the second connecting terminal 21.

[0047] Furthermore, in some embodiments, the second terminal assembly 2 further includes a sealing adhesive, which is bonded to the side of the fourth insulator 22 opposite to the protrusion 221. The sealing adhesive seals the side of the fourth insulator 22 opposite to the protrusion 221, and the second connecting terminal 21 at least partially penetrates the sealing adhesive. The portion of the second connecting terminal 21 penetrating the sealing adhesive is used for soldering to the circuit board. Through this method, the fourth insulator 22 and the sealing adhesive achieve multiple seals, ensuring that only the portion of the second connecting terminal 21 extending to the protrusion 221 is at risk of water ingress, while the remaining portions are free from water ingress.

[0048] Regarding the second connection terminal 21 described above, please refer to some embodiments. Figures 5 to 7 The second connecting terminal 21 includes a second row of females 211. The fourth insulator 22 is recessed in the middle of the protrusion 221 to form a through groove 225. The second row of females 211 is inserted into the through groove 225. One end of the second row of females 211 is located below the opening of the through groove 225 near the protrusion 221. The other end of the second row of females 211 extends toward the through groove 225 away from the opening of the protrusion 221. Sealing glue seals the opening of the through groove 225 away from the protrusion 221. The other end of the second row of females 211 penetrates the sealing glue. The part of the second row of females 211 that penetrates the sealing glue is used for soldering to the circuit board.

[0049] In some embodiments, the fourth insulator 22 is formed by injection molding.

[0050] Furthermore, regarding the fourth insulator 22 described above, please refer to [reference needed] in some embodiments. Figures 5 to 7 The fourth insulator 22 has a plurality of weight-reducing holes 226 on the side opposite to the protrusion 221, and the plurality of weight-reducing holes 226 are arranged in an array. In this way, not only can the weight of the fourth insulator 22 be reduced, thereby reducing the weight of the second terminal assembly 2, but also the materials used in the production of the fourth insulator 22 can be reduced, thereby reducing the production cost of the second terminal assembly 2.

[0051] Furthermore, regarding the fourth insulator 22 described above, please refer to [reference needed] in some embodiments. Figures 5 to 7 The fourth insulator 22 has a positioning hole 223 on the side near the protrusion 221, and the third insulator 15 has a positioning part 154 on the side near the groove 151. The positioning part 154 is used to engage with the positioning hole 223 when the protrusion 221 is inserted into the groove 151 to achieve positioning. In this way, the protrusion 221 and the groove 151 can play a positioning role when they are inserted, reducing the misalignment between them during the insertion process, thereby improving the insertion efficiency.

[0052] Furthermore, regarding the fourth insulator 22 described above, please refer to [reference needed] in some embodiments. Figures 5 to 7 A positioning structure 224 is provided on the side of the fourth insulator 22 away from the protrusion 221. The positioning structure 224 is used to insert into the circuit board when the second connecting terminal 21 is soldered to the circuit board to achieve positioning. In this way, the second connecting terminal 21 can play a positioning role when soldering to the circuit board, reducing the misalignment between the two during the soldering process, thereby improving the soldering efficiency.

[0053] Please see Figures 6 to 8 The electrical connector 100 also includes a locking assembly 3, which includes a first screw 31 and a second screw 32. A third insulator 15 has a through hole 153. The second screw 32 is embedded in a fourth insulator 22. The first screw 31 is used to thread through the through hole 153 and screw onto the second screw 32, thereby locking the third insulator 15 to the fourth insulator 22. This method improves the connection stability of the first terminal assembly 1 and the second terminal assembly 2, reduces the probability of relative displacement between them, and improves the connection reliability of the electrical connector 100.

[0054] Please see Figures 6 to 8 The electrical connector 100 also includes a seal 4. A fourth insulator 22 has a sealing groove 222 around the periphery of the protrusion 221. The sealing groove 222 is annular. The seal 4 is wound around the sealing groove 222. The seal 4 is used to compress and seal the groove 151 and the protrusion 221 when the first screw 31 is screwed onto the second screw 32. This improves the sealing performance after the groove 151 and the protrusion 221 are interlocked, thereby improving the connection sealing performance between the first terminal assembly 1 and the second terminal assembly 2, and enhancing the waterproof performance of the electrical connector 100.

[0055] Since the first terminal assembly 1 is free from water ingress except for the portion of the first connecting terminal 11 extending into the groove 151, and the second terminal assembly 2 is free from water ingress except for the portion of the second connecting terminal 21 extending into the protrusion 221, the sealing member 4 compresses and seals the space between the groove 151 and the protrusion 221 when the first screw 31 is screwed into the second screw 32. This ensures that the portion of the first connecting terminal 11 extending into the groove 151 and the portion of the second connecting terminal 21 extending into the protrusion 221 are also free from water ingress, thereby improving the waterproof performance of the electrical connector 100 and helping to achieve a waterproof rating of IPX7 for the electrical connector 100.

[0056] This utility model embodiment provides an electrical connector 100, including a first terminal assembly 1. The first terminal assembly 1 includes a first connecting terminal 11, a wire harness 12, a first insulator 13, a second insulator 14, and a third insulator 15. The wire harness 12 is electrically connected to the first connecting terminal 11. The first insulator 13 covers the portion where the first connecting terminal 11 and the wire harness 12 are electrically connected. The second insulator 14 includes an insulating portion 141 and a buffer portion 142 connected together. The insulating portion 141 is stacked on the first insulator 13. The buffer portion 142 covers the connection between the first insulator 13 and the wire harness 12. The third insulator 15 is provided with a groove 151. The third insulator 15 covers the insulating portion 141 of the first insulator 13 and the second insulator 14. The first connecting terminal 11 at least partially penetrates the first insulator 13 and the third insulator 15 and extends to the groove 151. In the above manner, the buffer portion 142 of this utility model embodiment is used to release the stress at the connection between the first connecting terminal 11 and the wire harness 12 when the wire harness 12 is bent, thereby reducing the probability of cracking of the first insulator 13 covering the connection between the first connecting terminal 11 and the wire harness 12, that is, reducing the probability of cracking of the injection-molded part at the connection between the first connecting terminal 11 and the wire harness 12, thereby improving the waterproof performance of the first terminal assembly 1 and the waterproof performance of the electrical connector 100.

[0057] This utility model also provides an embodiment of an electronic device, which includes the above-mentioned electrical connector 100. For the specific structure and function of the above-mentioned electrical connector 100, please refer to the above-mentioned embodiments, which will not be repeated here.

[0058] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An electrical connector, characterized in that, include: A first terminal assembly includes a first connecting terminal, a wire harness, a first insulator, a second insulator, and a third insulator. The wire harness is electrically connected to the first connecting terminal. The first insulator covers the portion where the first connecting terminal and the wire harness are electrically connected. The second insulator includes an insulating portion and a buffer portion connected together. The insulating portion is stacked on top of the first insulator. The buffer portion covers the connection between the first insulator and the wire harness. The buffer portion is used to release stress at the connection between the first connecting terminal and the wire harness when the wire harness is bent. The third insulator is provided with a groove. The third insulator covers the insulating portions of the first insulator and the second insulator. The first connecting terminal at least partially penetrates the first insulator and the third insulator and extends into the groove.

2. The electrical connector according to claim 1, characterized in that, The buffer section has a tapered cross-section along the length of the wire harness.

3. The electrical connector according to claim 2, characterized in that, The buffer section is provided with a plurality of notches, which are evenly spaced along a first direction and are staggered along the first direction. The first direction is the axial direction of the buffer section.

4. The electrical connector according to claim 1, characterized in that, The first insulator has a limiting portion on the side opposite to the groove, and the second insulator has a first limiting hole on the insulating portion, with the limiting portion inserted into the first limiting hole.

5. The electrical connector according to claim 4, characterized in that, The limiting part at least partially penetrates the first limiting hole, and the third insulator has a second limiting hole on the side opposite to the groove. The second limiting hole is aligned with the first limiting hole, and the portion of the limiting part that penetrates the first limiting hole is inserted into the second limiting hole.

6. The electrical connector according to any one of claims 1-5, characterized in that, The electrical connector further includes a second terminal assembly, which includes a second connecting terminal and a fourth insulator. The fourth insulator has a protrusion for insertion into the groove. The fourth insulator covers the second connecting terminal. One end of the second connecting terminal passes through the fourth insulator and extends to the protrusion. The other end of the second connecting terminal passes through the fourth insulator on the side opposite to the protrusion. The other end of the second terminal assembly is used for electrical connection to the circuit board. When the protrusion is inserted into the groove, the first connecting terminal is electrically connected to the second connecting terminal.

7. The electrical connector according to claim 6, characterized in that, The electrical connector further includes a locking assembly, which includes a first screw and a second screw. The third insulator has a through hole. The second screw is embedded in the fourth insulator. The first screw is used to thread through the through hole and screw onto the second screw, so that the third insulator is locked to the fourth insulator.

8. The electrical connector according to claim 7, characterized in that, The electrical connector further includes a seal, and the fourth insulator has a sealing groove on the periphery of the protrusion. The sealing groove is annular, and the seal is wrapped around the sealing groove. The seal is used to compress and seal the groove and the protrusion when the first screw is screwed into the second screw.

9. The electrical connector according to claim 6, characterized in that, The third insulator is provided with a positioning part, and the fourth insulator is provided with a positioning hole. The positioning part is used to be inserted into the positioning hole when the protrusion is inserted into the groove.

10. An electronic device, characterized in that, Includes the electrical connector as described in any one of claims 1-9.

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