Electric connector

Abstract

The utility model provides an electric connector, which relates to the field of electronic devices and comprises a plug assembly, a terminal assembly and a clamping assembly. The plug assembly comprises a plug body and a first electric connecting piece connected with the plug body, and the first electric connecting piece is provided with a first plugging part. The terminal assembly comprises a terminal body and a second electric connecting piece connected with the terminal body, the second electric connecting piece is provided with a second inserting part, and the first inserting part and the second inserting part are connected in an inserting mode or disconnected in an inserting mode. The clamping assembly comprises a clamping piece, one of the plug body and the terminal body is connected with the clamping piece, the other one of the plug body and the terminal body is provided with a first clamping part, and the clamping piece is provided with a second clamping part. And when the first inserting part and the second inserting part are inserted, the clamping piece rotates relatively, so that the second clamping part and the first clamping part are clamped or released. According to the electric connector of the utility model, the plug and the terminal can be locked, and loosening can be prevented.

Description

Technical Field

[0001] The utility model relates to the field of electronic devices, in particular to an electric connector. Background Art

[0002] The relay protection tester is used to check whether the comprehensive relay can work normally to protect the normal operation of the overall power system.

[0003] When the relay protection tester is in use, it is necessary to connect different test terminals through wires to perform relevant tests, wherein the wires are inserted into the jacks of the terminal block through pins to achieve electrical connection.

[0004] However, after being used many times, the pins and sockets are prone to loosening, resulting in poor contact or detachment, which affects the test and causes inconvenience. Utility Model Content

[0005] Based on this, the utility model provides an electrical connector to solve the technical problem that the pins and sockets of the existing relay protection tester are prone to loosening after repeated use, resulting in poor contact or separation, which affects the test process.

[0006] The utility model provides an electrical connector, comprising a plug assembly, a terminal assembly and a clamping assembly;

[0007] The plug assembly comprises a plug body and a first electrical connector connected to the plug body, the first electrical connector is used to be electrically connected to the first connection end, and the first electrical connector has a first plug-in portion;

[0008] The terminal assembly includes a terminal body and a second electrical connector connected to the terminal body, the second electrical connector is used to be electrically connected to the second connection end, the second electrical connector has a second plug-in portion matching the first plug-in portion, and the first plug-in portion is plugged or unplugged with the second plug-in portion;

[0009] The clamping assembly comprises a clamping member, one of the plug body and the terminal body is connected to the clamping member, the other has a first clamping portion, and the clamping member has a second clamping portion matching the first clamping portion;

[0010] The clamping member is configured to rotate relative to one of the plug body and the terminal body when the first plugging portion is plugged with the second plugging portion, so as to clamp or release the second clamping portion from the first clamping portion.

[0011] In a possible implementation, the clamping assembly further includes an elastic member, one side of the elastic member is connected to the clamping member, and the other side of the elastic member is connected to one of the plug body and the terminal body;

[0012] When the first plug-in portion is plugged into the second plug-in portion, the elastic member causes the second clamping portion to be elastically pressed against the first clamping portion.

[0013] In a possible implementation, the elastic member has a first elastic portion and a second elastic portion, one of which is connected to the snap-fit ​​member, and the other is connected to one of the plug body and the terminal body together with the snap-fit ​​member.

[0014] In a possible implementation manner, the elastic member further has a rebound portion, and the rebound portion is respectively connected to the first elastic portion and the second elastic portion.

[0015] In a possible implementation, at least one of the first elastic portion and the second elastic portion has a first limiting portion, and at least one of the clamping member, the plug body and the terminal body has a second limiting portion matching the first limiting portion;

[0016] The second limiting portion is connected to the first limiting portion to limit the relative movement between the clamping member and the connected plug body or terminal body.

[0017] In a possible implementation, the clamping member further comprises a first connecting portion and a pressing portion, and the first connecting portion is located between the second clamping portion and the pressing portion;

[0018] The plug body is provided with a second connection part matching with the first connection part, and the first connection part is rotatably connected with the second connection part.

[0019] In a possible implementation manner, the pressing portion has an anti-slip layer.

[0020] In one possible implementation, at least one of the clip and the plug body or terminal body that are separated from each other has a guide surface facing the other, and when one of the first plug-in portion and the second plug-in portion moves toward the other, the clip abuts against the plug body or terminal body that are separated from each other through the guide surface, so that the second clip part rotates in a direction away from the first clip part.

[0021] In a possible implementation, the number of the clamping assemblies is two, and the two clamping assemblies are arranged oppositely on two sides of one of the plug body and the terminal body;

[0022] There are two first clamping parts, which are arranged oppositely on two sides of the other of the plug body and the terminal body, and the second clamping parts on the two clamping parts correspond one to one with the two first clamping parts.

[0023] In a possible implementation, one of the first plug-in portion and the second plug-in portion is a plug pin, and the other is a plug socket matching the plug pin, and the plug pin is plugged in or unplugged from the plug socket.

[0024] The utility model provides an electrical connector, including a plug assembly, a terminal assembly and a snap-on assembly. The plug assembly includes a plug body and a first electrical connector connected to the plug body, the first electrical connector is electrically connected to the first connection end, and the first electrical connector has a first plug-in portion. The terminal assembly includes a terminal body and a second electrical connector connected to the terminal body, the second electrical connector is electrically connected to the second connection end, the second electrical connector has a second plug-in portion matching the first plug-in portion, the first plug-in portion is plugged or unplugged with the second plug-in portion to achieve electrical connection or disconnection between the first connection end and the second connection end. The snap-on assembly includes a snap-on member, one of the plug body and the terminal body is connected to the snap-on member, the other has a first snap-on portion, and the snap-on member has a second snap-on portion matching the first snap-on portion. The snap-on member is configured such that when the first plug-in portion is plugged with the second plug-in portion, the snap-on member rotates relative to one of the plug body and the terminal body to enable the second snap-on portion to be plugged or unplugged with the first snap-on portion. Therefore, the electrical connector provided by the utility model can lock the plug and the terminal by the clamping member when the plug and the terminal are plugged in, so as to prevent the two from being loosened, thereby ensuring the normal conduct of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0026] Figure 1 A schematic diagram of the structure of an electrical connector provided by an embodiment of the utility model;

[0027] Figure 2 for Figure 1 Sectional view along section AA;

[0028] Figure 3 for Figure 2 A schematic diagram of the structure in another state;

[0029] Figure 4 for Figure 1 Schematic diagram of the structure in another state.

[0030] Reference numerals:

[0031] 100: plug assembly;

[0032] 110: plug body;

[0033] 111: second connecting portion;

[0034] 120: first electrical connection member;

[0035] 121: first plug-in portion;

[0036] 101: second limiting portion;

[0037] 200: terminal assembly;

[0038] 210: Terminal body;

[0039] 211: first clamping portion;

[0040] 220: second electrical connection member;

[0041] 221: second plug-in portion;

[0042] 300: card connection assembly;

[0043] 310: card connector;

[0044] 311: second clamping portion;

[0045] 312: first connection portion;

[0046] 313: pressing part;

[0047] 320: elastic member;

[0048] 321: first elastic portion;

[0049] 322: second elastic portion;

[0050] 323: Rebound part;

[0051] 301: first limiting portion;

[0052] 302: Guide surface. DETAILED DESCRIPTION

[0053] Here, exemplary embodiments will be described in detail, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the utility model. Instead, they are only examples of methods and devices consistent with some aspects of the utility model as detailed in the attached claims.

[0054] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0055] As mentioned in the background technology section, the plug on the relay protection tester is inserted into the jack of the terminal for power-on and testing. During the test, after long-term use, the gap between the plug and the jack increases. When some uncontrollable factors such as vibration touch the plug, it is easy to cause the plug to loosen from the jack, affecting the normal progress of the test.

[0056] In view of the above-mentioned problems existing in the prior art, the utility model provides an electrical connector. The electrical connector provided by the utility model includes a plug assembly, a terminal assembly and a snap-on assembly. Among them, the plug assembly includes a plug body and a first electrical connector connected to the plug body, the first electrical connector is electrically connected to the first connection end, and the first electrical connector has a first plug-in portion. The terminal assembly includes a terminal body and a second electrical connector connected to the terminal body, the second electrical connector is electrically connected to the second connection end, the second electrical connector has a second plug-in portion matching the first plug-in portion, the first plug-in portion is plugged in or unplugged with the second plug-in portion to achieve electrical connection or disconnection between the first connection end and the second connection end. The snap-on assembly includes a snap-on portion, one of the plug body and the terminal body is connected to the snap-on portion, the other has a first snap-on portion, and the snap-on portion has a second snap-on portion matching the first snap-on portion. The snap-in connector is configured such that when the first plug-in portion is plugged into the second plug-in portion, the snap-in connector rotates relative to one of the plug body and the terminal body to engage or disengage the second plug-in portion with the first plug-in portion, and the plug and the terminal are locked by the snap-in connector to prevent them from loosening, thereby ensuring the normal progress of the test.

[0057] The following specific embodiments are combined with the accompanying drawings to describe the technical solution of the utility model in detail. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0058] Reference Figures 1 to 4As shown, the electrical connector provided in this embodiment is used for electrical connection between various ports on a relay protection tester, and the electrical connector includes a plug assembly 100, a terminal assembly 200, and a clamping assembly 300. The plug assembly 100 includes a plug body 110 and a first electrical connector 120 connected to the plug body 110, the first electrical connector 120 is used to electrically connect to the first connection end, and the first electrical connector 120 has a first plug-in portion 121.

[0059] The terminal assembly 200 includes a terminal body 210 and a second electrical connector 220 connected to the terminal body 210. The second electrical connector 220 is used to electrically connect to the second connection end. The second electrical connector 220 has a second plug-in portion 221 that matches the first plug-in portion 121. The first plug-in portion 121 is plugged in or unplugged from the second plug-in portion 221.

[0060] The clamping assembly 300 includes a clamping member 310, one of the plug body 110 and the terminal body 210 is connected to the clamping member 310, the other has a first clamping portion 211, and the clamping member 310 has a second clamping portion 311 matching the first clamping portion 211. The clamping member 310 is configured to rotate relative to one of the plug body 110 and the terminal body 210 when the first plugging portion 121 is plugged with the second plugging portion 221, so that the second clamping portion 311 is engaged with or released from the first clamping portion 211.

[0061] In this embodiment, the plug body 110 is used to protect, fix, insulate, etc. the first electrical connector 120, and it can be a shell structure of plastic, rubber, silicone, etc. The first electrical connector 120 is used to be electrically connected to the first connection end, and it can be a columnar, plate-shaped, block-shaped, etc. structure made of metal material, and inserted into the plug body 110. The first electrical connector 120 can be electrically connected to the first connection end through a conductor such as a wire or a conductive sheet. Among them, the first electrical connector 120 also has a first plug-in portion 121, such as a pin, a jack, etc.

[0062] The terminal body 210 is used to protect, fix, insulate, etc. the second electrical connector 220, and it can also be a shell structure of plastic, rubber, silicone, etc. The second electrical connector 220 is used to be electrically connected to the second connection end, and it can also be a columnar, plate-shaped, block-shaped structure made of metal material, and inserted into the terminal body 210. The second electrical connector 220 can also be electrically connected to the second connection end through a conductor such as a wire or a conductive sheet. Among them, the second electrical connector 220 also has a second plug-in portion 221 that matches the first plug-in portion 121, and the second plug-in portion 221 is such as a pin, a socket, etc., so that the first plug-in portion 121 can be plugged or unplugged with the second plug-in portion 221.

[0063] It should be noted that the first connection end may be a connection end on a relay, and the second connection end may be a connection end on a relay protection tester. Of course, the first connection end may be a connection end on a relay protection tester, and the second connection end may be a connection end on a relay. In addition, the first plug-in portion 121 and the second plug-in portion 221 are electrically connected by plugging, which may also be replaced by other types of plug-in structures, such as matching protrusion and groove structures, etc., according to actual needs.

[0064] The clamping member 310 is used to lock or unlock the plug and the terminal, and can be in the form of a plate, block, sheet, or other structure. One of the plug body 110 and the terminal body 210 can be rotatably connected to the clamping member 310 through a rotating structure such as a pin shaft, and the other has a first clamping portion 211, such as a clamping protrusion or a clamping groove, etc. The clamping member 310 has a second clamping portion 311 that matches the first clamping portion 211, such as a matching clamping groove or a clamping protrusion, etc., on one side facing the first clamping portion 211. When the clamping member 310 rotates, the second clamping portion 311 can be rotated in a direction close to or away from the first clamping portion 211.

[0065] Specifically, if Figure 1-Figure 4 As shown, when the first plug-in portion 121 is plugged with the second plug-in portion 221, the clamping member 310 rotates relative to one of the plug body 110 and the terminal body 210, so that the second clamping portion 311 rotates toward the direction close to the first clamping portion 211 and is clamped with the first clamping portion 211, thereby limiting the relative movement of the plug body 110 and the terminal body 210, locking them to prevent them from loosening, so as to ensure the normal conduct of the test. Or the second clamping portion 311 rotates toward the direction away from the first clamping portion 211 and is released from the first clamping portion 211, so that the first plug-in portion 121 and the second plug-in portion 221 are released from plugging.

[0066] Compared with the structure without limit between the plug and the terminal, the electrical connector provided in this embodiment locks the plug and the terminal by means of a clamping member to prevent the two from loosening, thereby ensuring the normal conduct of the test, and is simple to operate and easy to use.

[0067] It can be understood that the electrical connector provided by the utility model includes a plug assembly 100, a terminal assembly 200 and a snap-on assembly 300. The plug assembly 100 includes a plug body 110 and a first electrical connector 120 connected to the plug body 110, the first electrical connector 120 is electrically connected to the first connection end, and the first electrical connector 120 has a first plug-in portion 121. The terminal assembly 200 includes a terminal body 210 and a second electrical connector 220 connected to the terminal body 210, the second electrical connector 220 is electrically connected to the second connection end, and the second electrical connector 220 has a second plug-in portion 221 that matches the first plug-in portion 121. The first plug-in portion 121 is plugged or unplugged with the second plug-in portion 221 to achieve electrical connection or disconnection between the first connection end and the second connection end. The clamping assembly 300 includes a clamping member 310, one of the plug body 110 and the terminal body 210 is connected to the clamping member 310, the other has a first clamping portion 211, and the clamping member 310 has a second clamping portion 311 matching the first clamping portion 211. The clamping member 310 is configured such that when the first plug-in portion 121 is plugged with the second plug-in portion 221, the clamping member 310 rotates relative to one of the plug body 110 and the terminal body 210 to engage or release the second clamping portion 311 with the first clamping portion 211, and the plug and the terminal are locked by the clamping member 310 to prevent the two from being loosened, so as to ensure the normal conduct of the test.

[0068] In a possible design, the clamping assembly 300 further includes an elastic member 320, one side of the elastic member 320 is connected to the clamping member 310, and the other side of the elastic member 320 is connected to one of the plug body 110 and the terminal body 210. When the first plug-in portion 121 is plugged with the second plug-in portion 221, the elastic member 320 causes the second clamping portion 311 to be elastically pressed against the first clamping portion 211.

[0069] Specifically, the elastic member 320 is used to elastically press the second clamping portion 311 and the first clamping portion 211, and can be a spring, such as a compression spring, a tension spring, a torsion spring, etc., or an elastic member such as a spring sheet. Figure 2-Figure 3 As shown, when the clamping member 310 is connected to the plug body 110, the elastic member 320 is connected to the clamping member 310 and the plug body 110 respectively, so that the second clamping portion 311 and the first clamping portion 211 are elastically pressed to avoid free loosening.

[0070] When the clamping member 310 is connected to the terminal body 210, which is not shown in the figure, the elastic member 320 is connected to the clamping member 310 and the terminal body 210 respectively, and the second clamping portion 311 and the first clamping portion 211 are elastically pressed to avoid free loosening. The specific type and connection position of the elastic member 320 can be determined according to actual needs and are not specifically limited in this embodiment.

[0071] Furthermore, the elastic member 320 has a first elastic portion 321 and a second elastic portion 322 , one of which is connected to the snap-in member 310 , and the other is connected together with the snap-in member 310 to one of the plug body 110 and the terminal body 210 .

[0072] The first elastic portion 321 and the second elastic portion 322 on the elastic member 320 may be two elastic arms arranged in a substantially V-shape. Figure 2-Figure 3 As shown, when the clamping member 310 is connected to the plug body 110 , one of the two elastic arms abuts against the clamping member 310 , and the other abuts against the plug body 110 , and the two elastic arms provide a clamping elastic force to the clamping member 310 .

[0073] When the clamping member 310 is connected to the terminal body 210, (not shown in the figure), one of the two elastic arms abuts against the clamping member 310, and the other abuts against the terminal body 210, and the two elastic arms can also provide a clamping elastic force for the clamping member 310. This arrangement is convenient for manufacturing and installation.

[0074] Furthermore, in this embodiment, the elastic member 320 also has a rebound portion 323 , which is connected to the first elastic portion 321 and the second elastic portion 322 , respectively. The rebound portion 323 is used for the first elastic portion 321 and the second elastic portion 322 to maintain a predetermined rebound force.

[0075] Specifically, continue as Figure 2 , Figure 3 As shown, the rebound portion 323 is roughly C-shaped, and the first elastic portion 321 and the second elastic portion 322 are correspondingly connected to the two ends of the C-shaped opening of the rebound portion 323. In this way, under the action of the rebound portion 323, the first elastic portion 321 and the second elastic portion 322 maintain good rebound force, so that the first elastic portion 321 and the second elastic portion 322 can rebound better after being compressed or pulled.

[0076] It should be noted that a space for the springback portion 323 to move should be reserved between the clamping member 310 and the plug body 110, or between the clamping member 310 and the terminal body 210, such as a groove, a cavity, etc., to avoid interference with the springback portion 323. Of course, the springback portion 323 can also be replaced by other structures with a springback function, which is not specifically limited in this embodiment.

[0077] Furthermore, in this embodiment, at least one of the first elastic portion 321 and the second elastic portion 322 has a first limiting portion 301, and at least one of the clamping member 310, the plug body 110, and the terminal body 210 has a second limiting portion 101 that matches the first limiting portion 301. The second limiting portion 101 is connected to the first limiting portion 301 to limit the relative movement between the clamping member 310 and the connected plug body 110 or the terminal body 210.

[0078] For example, Figure 2 As shown, the first limiting portion 301 is a limiting hole, the first elastic portion 321 and the second elastic portion 322 are both provided with limiting holes, and the second limiting portion 101 is a limiting column matching the limiting hole. When the clamping member 310 is connected to the plug body 110, the clamping member 310 and the plug body 110 are both provided with limiting columns, and the two limiting columns correspond to and are connected with the two limiting holes one by one to limit the relative movement between the clamping member 310 and the plug body 110.

[0079] When the clamping member 310 is connected to the terminal body 210 , as not shown in the figure, limiting columns are provided on the clamping member 310 and the terminal body 210 , and two limiting columns correspond to and are connected with two limiting holes one by one to limit the relative movement between the clamping member 310 and the terminal body 210 .

[0080] Furthermore, in this embodiment, the clamping member 310 further comprises a first connection portion 312 and a pressing portion 313, wherein the first connection portion 312 is located between the second clamping portion 311 and the pressing portion 313. The plug body 110 comprises a second connection portion 111 matching the first connection portion 312, and the first connection portion 312 is rotatably connected to the second connection portion 111.

[0081] Specifically, Figure 2-Figure 3 As shown, one of the first connection part 312 and the second connection part 111 is a connection hole, and the other is a pin shaft matching the connection hole, and the pin shaft is rotatably connected to the connection hole. Moreover, the clamping member 310 is driven to rotate by the pressing part 313, so that the clamping member 310 is easy to operate.

[0082] Of course, the first connection portion 312 and the second connection portion 111 may also be replaced by other types of rotating structures, which are not specifically limited in this embodiment.

[0083] Optionally, in this embodiment, the pressing portion 313 has an anti-slip layer. Figure 1 , Figure 3 As shown, the anti-skid layer can be anti-skid protrusions, anti-skid patterns, anti-skid teeth, etc., and any structure that can play an anti-skid role can be used, and is not specifically limited in this embodiment.

[0084] In order to facilitate the plugging of the first plug-in portion 121 and the second plug-in portion 221, the clamping member 310 does not interfere with the plug body 110 or the terminal body 210, in this embodiment, the clamping member 310 and at least one of the plug body 110 or the terminal body 210 that are separated from each other have a guide surface 302 facing the other. When one of the first plug-in portion 121 and the second plug-in portion 221 moves toward the other, the clamping member 310 abuts against the plug body 110 or the terminal body 210 that are separated from each other through the guide surface 302, so that the second clamping portion 311 rotates in a direction away from the first clamping portion 211.

[0085] In one example, Figure 2 As shown, when the clip 310 is connected to the plug body 110, the side of the clip 310 facing the terminal body 210 has a guide surface 302, and correspondingly, the side of the terminal body 210 facing the clip 310 also has a guide surface 302. In this way, when one of the first plug-in portion 121 and the second plug-in portion 221 moves toward the other, under the action of the two guide surfaces 302, the second clip 311 is pushed away from the first clip 211 until the first plug-in portion 121 and the second plug-in portion 221 are fully plugged in, and the second clip 311 is plugged into the first clip 211.

[0086] In another example, when the clamping member 310 is connected to the terminal body 210, which is not shown in the figure, the clamping member 310 has a guide surface 302 on one side facing the plug body 110, and correspondingly, the plug body 110 also has a guide surface 302 on one side facing the clamping member 310. In this way, when one of the first plug-in portion 121 and the second plug-in portion 221 moves toward the other, under the action of the two guide surfaces 302, the second clamping portion 311 is pushed away from the first clamping portion 211 until the first plug-in portion 121 and the second plug-in portion 221 are fully plugged together, and the second clamping portion 311 is plugged together with the first clamping portion 211.

[0087] In order to facilitate the pressing operation of the clamping assembly 300, in this embodiment, there are two clamping assemblies 300, and the two clamping assemblies 300 are relatively arranged on both sides of one of the plug body 110 and the terminal body 210. There are two first clamping portions 211, and the two first clamping portions 211 are relatively arranged on both sides of the other of the plug body 110 and the terminal body 210, and the second clamping portions 311 on the two clamping members 310 correspond to the two first clamping portions 211 one by one.

[0088] Specifically, Figure 2 , Figure 3 As shown, on the one hand, the clamping is performed by two clamping assemblies 300, and the force is more balanced. On the other hand, it is convenient to release the clamping operation of the clamping assembly 300 by hand.

[0089] Optionally, in this embodiment, one of the first plug-in portion 121 and the second plug-in portion 221 is a pin, and the other is a socket matching the pin, and the pin is plugged or unplugged with the socket. Figure 2-Figure 4 As shown, the number of the pins and the sockets can be one or more, and the structure of the electrical connection between the pins and the sockets is relatively simple, which is convenient for manufacturing and processing.

[0090] Those skilled in the art will readily come up with other embodiments of the present invention after considering the specification and practicing the utility model disclosed herein. The present invention is intended to cover any variation, use or adaptation of the present invention, which follows the general principles of the present invention and includes common knowledge or customary technical means in the art that are not disclosed in the present invention. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the present invention are indicated by the claims.

[0091] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. An electrical connector, characterized in that: It includes a plug assembly, a terminal assembly and a snap-on assembly; The plug assembly comprises a plug body and a first electrical connector connected to the plug body, the first electrical connector is used to be electrically connected to the first connection end, and the first electrical connector has a first plug-in portion; The terminal assembly comprises a terminal body and a second electrical connector connected to the terminal body, the second electrical connector is used to be electrically connected to the second connection end, the second electrical connector has a second plug-in portion matching the first plug-in portion, and the first plug-in portion is plugged or unplugged with the second plug-in portion; The clamping assembly comprises a clamping member, one of the plug body and the terminal body is connected to the clamping member, the other has a first clamping portion, and the clamping member has a second clamping portion matching the first clamping portion; The clamping member is configured to rotate relative to one of the plug body and the terminal body when the first plug-in portion is plugged into the second plug-in portion, so as to engage or release the second plug-in portion from the first plug-in portion.

2. The electrical connector according to claim 1, characterized in that: The clamping assembly further comprises an elastic member, one side of which is connected to the clamping member, and the other side of which is connected to one of the plug body and the terminal body; When the first plug-in portion is plugged into the second plug-in portion, the elastic member causes the second clamping portion to be elastically pressed against the first clamping portion.

3. The electrical connector according to claim 2, characterized in that: The elastic member has a first elastic portion and a second elastic portion, one of the first elastic portion and the second elastic portion is connected to the clamping member, and the other of the first elastic portion and the clamping member are connected together to one of the plug body and the terminal body.

4. The electrical connector according to claim 3, characterized in that: The elastic member also has a rebound portion, and the rebound portion is connected to the first elastic portion and the second elastic portion respectively.

5. The electrical connector according to claim 3, characterized in that: At least one of the first elastic portion and the second elastic portion has a first limiting portion, and at least one of the clamping member, the plug body and the terminal body has a second limiting portion matching the first limiting portion; The second limiting portion is connected to the first limiting portion to limit the relative movement between the clamping member and the connected plug body or the terminal body.

6. The electrical connector according to claim 1, characterized in that: The clamping member also has a first connecting portion and a pressing portion, wherein the first connecting portion is located between the second clamping portion and the pressing portion; The plug body has a second connection portion matching the first connection portion, and the first connection portion is rotatably connected to the second connection portion.

7. The electrical connector according to claim 6, characterized in that: The pressing part is provided with an anti-slip layer.

8. The electrical connector according to claim 1, characterized in that: The clamping member and at least one of the plug body or the terminal body that are separated from each other have a guide surface facing the other. When one of the first plug-in portion and the second plug-in portion moves toward the other, the clamping member abuts against the plug body or the terminal body that are separated from each other through the guide surface, so that the second clamping portion rotates in a direction away from the first clamping portion.

9. The electrical connector according to any one of claims 1 to 8, characterized in that: The number of the clamping assemblies is two, and the two clamping assemblies are arranged oppositely on two sides of one of the plug body and the terminal body; There are two first clamping parts, which are arranged oppositely on two sides of the plug body and the terminal body, and the second clamping parts on the two clamping parts correspond to the two first clamping parts one by one.

10. The electrical connector according to any one of claims 1 to 8, characterized in that: One of the first plug-in portion and the second plug-in portion is a plug-in pin, and the other is a plug-in socket matching the plug-in pin, and the plug-in pin is plugged into or unplugged from the plug-in socket.

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