A connector

Abstract

The application discloses a connector, which belongs to the technical field of electric connection devices, and comprises a seat body, a grounding needle, a negative pole needle, a positive pole needle and a signal needle; the seat body is provided with an abutting surface and a plug-in table arranged on the abutting surface; the plug-in table is provided with a butt joint groove; the grounding needle is provided with a first mounting part and a first plug-in end; the negative pole needle is provided with a second mounting part and a second plug-in end; the positive pole needle is provided with a third mounting part and a third plug-in end; the signal needle is provided with a fourth mounting part and a fourth plug-in end; the distance between the first plug-in end and the abutting surface, the distance between the second plug-in end and the abutting surface, the distance between the third plug-in end and the abutting surface and the distance between the fourth plug-in end and the abutting surface gradually decrease. The application can avoid abnormal conditions such as transient overvoltage, overcurrent, arc discharge sparking, signal interference and loss in the circuit during the plug-in and plug-out operation of the plug and the socket, and improve the safety and reliability of the connector.

Description

Technical Field

[0001] This application relates to the technical field of electrical connection devices, and more particularly to a connector. Background Technology

[0002] In the context of highly integrated and intelligent modern electronic devices and electrical systems, connectors, as key components for achieving electrical connections and signal transmission, directly affect the stability and reliability of the entire system. Currently, the basic structure of traditional connectors widely used in the market mainly consists of two parts: a plug and a socket.

[0003] In the actual use of traditional connectors, when plugs and sockets are inserted or removed, the current connection pins and signal connection pins simultaneously connect or disconnect. This synchronous connection and disconnection, due to the synchronized changes in current and signal, can generate instantaneous overvoltage, overcurrent, arcing, signal interference, and signal loss in the circuit, resulting in poor connector safety and reliability. These abnormal conditions can easily exceed the tolerance range of electronic components, leading to damage and causing errors in data transmission and logical inconsistencies within the system. In severe cases, it can even trigger system failures, paralyzing the entire system and causing significant losses such as production interruptions and data loss. This is particularly problematic in fields with extremely high requirements for electrical performance and signal transmission stability, such as aerospace, medical equipment, and industrial automation control, severely impacting normal equipment operation, shortening equipment lifespan, and increasing maintenance costs and replacement frequency. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a connector that can solve the above-mentioned problems existing in the prior art.

[0005] To achieve the above objectives, this application adopts the following technical solution: A connector, comprising: The base has an abutting surface and a plug-in platform disposed on the abutting surface; the plug-in platform is provided with a mating groove; The grounding pin has a first mounting portion installed on the base and a first plug-in end located in the mating groove and extending in a direction close to the groove opening; The negative electrode needle has a second mounting portion installed in the base body and a second plug-in end located in the docking groove and extending in a direction close to the groove opening; The positive electrode needle has a third mounting portion installed on the base body and a third plug-in end located in the docking groove and extending in a direction close to the groove opening of the docking groove; The signal pin has a fourth mounting portion installed on the base and a fourth insertion end located in the mating groove and extending in a direction close to the groove opening; The distances between the first plug-in end and the abutment surface, the distances between the second plug-in end and the abutment surface, the distances between the third plug-in end and the abutment surface, and the distances between the fourth plug-in end and the abutment surface gradually decrease.

[0006] Preferably, the docking groove includes a first sub-groove, a second sub-groove, a third sub-groove, and a fourth sub-groove arranged at intervals; the grounding pin is located in the first sub-groove, the negative pin is located in the second sub-groove, the positive pin is located in the third sub-groove, and the signal pin is located in the fourth sub-groove.

[0007] Preferably, there are multiple negative electrode needles, multiple positive electrode needles, multiple signal needles, multiple second sub-slots, and multiple third sub-slots. The multiple negative electrode needles correspond one-to-one with the multiple second sub-slots, the multiple positive electrode needles correspond one-to-one with the multiple third sub-slots, and there is one fourth sub-slot. All the signal needles are located in the fourth sub-slot.

[0008] Preferably, the first sub-slot and the fourth sub-slot are both located between the second sub-slot and the third sub-slot.

[0009] Preferably, the side of the plug-in platform is provided with a first anti-mistake platform and a second anti-mistake platform, and the first anti-mistake platform and the second anti-mistake platform are centrally symmetrical about the plug-in platform.

[0010] Preferably, both the first and second error-proofing platforms are provided with error-proofing grooves.

[0011] Preferably, the negative electrode needle further has a second connecting end connected to the second mounting portion, the second mounting portion being located between the second connecting end and the second plug-in end, the second connecting end extending to the outside of the base body in a direction away from the second plug-in end and having a first threaded hole; The positive electrode needle also has a third connecting end connected to the third mounting part. The third mounting part is located between the third connecting end and the third plug-in end. The third connecting end extends to the outside of the base body in a direction away from the third plug-in end and is provided with a second threaded hole.

[0012] Preferably, the first threaded hole has multiple threads, and the second threaded hole has multiple threads.

[0013] Preferably, the base includes a shell and a fixing member; the base is provided with a slot, the fixing member is engaged in the slot and together with the base to form a clamping cavity, the clamping cavity is connected to the docking groove, and the first mounting part, the second mounting part, the third mounting part and the fourth mounting part are all engaged in the clamping cavity.

[0014] Preferably, the first plug-in end, the second plug-in end, the third plug-in end, and the fourth plug-in end are all provided with rounded corners.

[0015] The beneficial effects of this application are as follows: During the insertion process of the plug and socket of this connector, the grounding pin, negative pin, positive pin, and signal pin can be connected sequentially. During the unplugging process of the plug and socket of this connector, the signal pin, positive pin, negative pin, and grounding pin are disconnected sequentially. This avoids the occurrence of instantaneous overvoltage, overcurrent, arcing, and signal interference or loss in the circuit during the insertion and unplugging operations of the plug and socket, thereby improving the safety and reliability of the connector. Attached Figure Description

[0016] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the connector structure; Figure 2 An exploded view of the connector; Figure 3 This is a partial cross-sectional view of the connector; Figure 4 This is a front view of a partial sectional view of the connector.

[0018] Explanation of reference numerals in the attached figures: 1. Base; 2. Grounding pin; 3. Negative pin; 4. Positive pin; 5. Signal pin; 101. Outer shell; 102. Fastener; 103. Abutment surface; 104. Insertion platform; 105. Connecting groove; 106. First sub-groove; 107. Second sub-groove; 108. Third sub-groove; 109. Fourth sub-groove; 110. First foolproof platform; 111. Second foolproof platform; 112. Foolproof groove; 21. First mounting part; 22. First plug-in end; 31. Second mounting part; 32. Second insertion end; 33. Second connecting end; 34. First threaded hole; 41. Third mounting part; 42. Third insertion end; 43. Third connecting end; 44. Second threaded hole; 51. Fourth mounting section; 52. Fourth plug-in terminal. Detailed Implementation

[0019] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "fixed," "linked," "communicated," "abutting," "clamping," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] Before discussing the exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe the operations (or steps) as sequential processes, many of these operations can be performed in parallel, concurrently, or simultaneously. Furthermore, the order of the operations can be rearranged. The process can be terminated when its operation is completed, but it may also have additional steps not included in the figures. The process may correspond to a method, function, procedure, subroutine, subroutine, etc.

[0023] Unless otherwise stated or defined, the term "and / or" as used in this invention includes any and all combinations of one or more of the associated listed items.

[0024] For ease of description, the up and down directions mentioned below are... Figure 4 Its vertical direction is consistent.

[0025] like Figures 1 to 4As shown, this embodiment provides a connector, including a base 1, a grounding pin 2, a negative pin 3, a positive pin 4, and a signal pin 5. The base 1 is an insulating component and can be the outer shell 101 of a socket or plug. When the base 1 in this application is the outer shell 101 of a plug, the base 1 is inserted into a socket; when the base 1 in this application is the outer shell 101 of a socket, the base 1 is inserted into a plug. Unless otherwise stated, the embodiments of this application are described using the example of the base 1 being the outer shell 101 of a plug.

[0026] The base 1 has an abutment surface 103 and a plug-in platform 104 disposed on the abutment surface 103. The plug-in platform 104 is provided with a mating groove 105. When the base 1 is plugged into the socket, the plug-in platform 104 is inserted into the socket slot, and at this time the abutment surface 103 abuts against the socket to achieve positioning after plugging. The mating groove 105 is used to accommodate the grounding pin 2, the negative pin 3, the positive pin 4, and the signal pin 5. The grounding pin 2, the negative pin 3, the positive pin 4, and the signal pin 5 are respectively used to plug into the corresponding terminal sockets on the socket.

[0027] The grounding pin 2 has a first mounting portion 21 mounted on the base 1 and a first plug-in end 22 located in the mating groove 105 and extending in a direction close to the opening of the mating groove 105. The first mounting portion 21 is mounted on the bottom of the mating groove 105, and the first plug-in end 22 extends in a direction away from the bottom of the mating groove 105 and close to the opening of the mating groove 105.

[0028] The negative electrode needle 3 has a second mounting portion 31 mounted on the base 1 and a second insertion end 32 located in the docking groove 105 and extending in a direction close to the opening of the docking groove 105. The second mounting portion 31 is mounted on the bottom of the docking groove 105, and the second insertion end 32 extends in a direction away from the bottom of the docking groove 105 and close to the opening of the docking groove 105.

[0029] The positive electrode 4 has a third mounting portion 41 mounted on the base 1 and a third insertion end 42 located in the docking groove 105 and extending in a direction close to the groove opening of the docking groove 105. The third mounting portion 41 is mounted on the bottom of the docking groove 105, and the third insertion end 42 extends in a direction away from the bottom of the docking groove 105 and close to the groove opening of the docking groove 105.

[0030] The signal pin 5 has a fourth mounting portion 51 mounted on the base 1 and a fourth insertion end 52 located in the mating groove 105 and extending in a direction close to the opening of the mating groove 105. The fourth mounting portion 51 is mounted on the bottom of the mating groove 105, and the fourth insertion end 52 extends in a direction away from the bottom of the mating groove 105 and close to the opening of the mating groove 105.

[0031] The first plug-in terminal 22, the second plug-in terminal 32, the third plug-in terminal 42, and the fourth plug-in terminal 52 are respectively used to insert into the corresponding terminal holes on the socket to achieve electrical connection.

[0032] The distance between the first plug end 22 of the grounding pin 2 and the contact surface 103 is A; the distance between the second plug end 32 of the negative pin 3 and the contact surface 103 is B; the distance between the third plug end 42 of the positive pin 4 and the contact surface 103 is C; and the distance between the fourth plug end 52 of the signal pin 5 and the contact surface 103 is D. The distances between the first plug end 22 of the grounding pin 2 and the contact surface 103 gradually decrease: A; B; C; D. C; D. C. C; D. C. C. C. C. C. C. C. C. C. D. C. D. C. D. C. C. C. C. C. C. C. C. C. C. C. C. D. D. C. C. C. C. C. C. C. C. D ... When the socket and plug are inserted, the grounding pin 2, negative pin 3, positive pin 4, and signal pin 5 are sequentially connected to the socket terminals. When the socket and plug are unplugged, the signal pin 5, positive pin 4, negative pin 3, and negative pin 3 are sequentially disconnected from the socket terminals. Both positive pin 4 and negative pin 3 are current-carrying pins, and the current flows in opposite directions. Therefore, when the socket and plug are inserted, positive pin 4 and negative pin 3 are connected before signal pin 5. When the socket and plug are separated, signal pin 5 is disconnected before positive pin 4 and negative pin 3, thus preventing electrical shock and data loss.

[0033] When the base 1 is plugged into the socket, the first plug end 22 of the grounding pin 2 is inserted into the socket before the second plug end 32 of the negative pin 3 to establish an electrical connection. This can conduct away static electricity generated by the connector or the device containing the connector, preventing excessive voltage and current from causing harm to the human body. The second plug end 32 of the negative pin 3 is inserted into the socket before the third plug end 42 of the positive pin 4 to establish an electrical connection. When the grounding pin 2 is turned on, it is the turn of the negative pin 3 to be turned on. The negative terminal of the negative pin 3 is not energized. The negative pin 3 contacts the terminal of the socket first, which can prevent the positive pin 4 and the negative pin 3 from conducting simultaneously, which would cause arcing, discharge, and other adverse phenomena. Therefore, after the negative pin 3 is turned on, the positive pin 4, which carries the current, contacts the socket terminal. At this time, the circuit is connected. Since the negative pin 3 has already conducted the circuit, there will be no arcing when the positive pin 4 is turned on later. The third connector 42 of the positive pin 4 is inserted into the socket before the fourth connector 52 of the signal pin 5 to establish an electrical connection. The signal pin 5 can only be connected after the negative pin 3 and the positive pin 4 are all connected in sequence, so that there will be no signal loss.

[0034] When the base 1 is separated from the socket, signal pin 5 disconnects first, preventing signal loss. Then, positive pin 4 and negative pin 3 disconnect in sequence. After positive pin 4 disconnects, the current in the circuit is cut off, and then negative pin 3 disconnects. Finally, grounding pin 2 disconnects. After positive pin 4 and negative pin 3 are completely disconnected, grounding pin 2 can conduct the static electricity generated during operation to the ground, eliminating excess static electricity on the equipment. Finally, grounding pin 2 disconnects, ensuring safety and preventing static electricity injury when people touch the equipment.

[0035] When the connector of this application is used in some equipment, it can prevent the electronic components of the equipment from being damaged due to the safety issues of the connector, avoid errors and logical confusion in the data transmission within the equipment system, prevent the system from falling into a paralyzed state and causing major losses such as production interruption and data loss, ensure the normal operation of the equipment, improve the service life of the equipment, and reduce the maintenance cost and replacement frequency of the equipment.

[0036] The connector of this application can prevent equipment damage or system failure caused by the simultaneous connection or disconnection of signal pin 5, positive pin 4, and negative pin 3, thereby improving system reliability and safety. The connector of this application can handle high-current loads and is suitable for equipment requiring high-power power supplies. The connector is made of high-quality materials and precision manufacturing processes, possessing excellent durability and corrosion resistance, and can operate stably for a long period.

[0037] When the connector of this application is used in the control system of a device, it ensures the correct sequence of power and signals, preventing device damage. When used during the charging process of a device, the connector of this application can control the sequence of power and communication signals, ensuring charging safety. When used in avionics equipment, the connector of this application can ensure the stable operation of the electrical system, preventing flight risks caused by electrical faults. When used in solar and wind power systems, the connector of this application can control the sequence of power and monitoring signals, ensuring stable system operation.

[0038] Optionally, the first insertion end 22 of the grounding pin 2 is located outside the mating groove 105, and the distance between the first insertion end 22 of the grounding pin 2 and the opening of the mating groove 105 is 4.6 mm. The second insertion end 32 of the negative pin 3 is located outside the mating groove 105, and the distance between the second insertion end 32 of the negative pin 3 and the opening of the mating groove 105 is 2.4 mm, that is, the distance between the second insertion end 32 of the negative pin 3 and the first insertion end 22 of the grounding pin 2 is 2.2 mm. The third insertion end 42 of the positive pin 4 is located inside the mating groove 105, and the distance between the third insertion end 42 of the positive pin 4 and the opening of the mating groove 105 is 0.6 mm, that is, the distance between the third insertion end 42 of the positive pin 4 and the second insertion end 32 of the negative pin 3 is 3 mm. The fourth plug end 52 of the signal pin 5 is located inside the mating groove 105. The distance between the fourth plug end 52 of the signal pin 5 and the groove opening of the mating groove 105 is 3.7 mm, that is, the distance between the fourth plug end 52 of the signal pin 5 and the third plug end 42 of the positive electrode pin 4 is 3.1 mm.

[0039] In one embodiment, the mating groove 105 includes a first sub-groove 106, a second sub-groove 107, a third sub-groove 108, and a fourth sub-groove 109 spaced apart. The grounding pin 2 is located in the first sub-groove 106, the negative pin 3 is located in the second sub-groove 107, the positive pin 4 is located in the third sub-groove 108, and the signal pin 5 is located in the fourth sub-groove 109, thereby separating the grounding pin 2, the negative pin 3, the positive pin 4, and the signal pin 5 and improving the safety of the connector.

[0040] Optionally, multiple negative pins 3, positive pins 4, signal pins 5, second sub-slots 107, and third sub-slots 108 are available to improve current carrying capacity and heat dissipation, ensure signal integrity, and enhance reliability during socket insertion and removal. Multiple negative pins 3 correspond one-to-one with multiple second sub-slots 107, and multiple positive pins 4 correspond one-to-one with multiple third sub-slots 108. The multiple second sub-slots 107 are spaced apart, and the multiple third sub-slots 108 are spaced apart. There is one fourth sub-slot 109, and all signal pins 5 are located within the fourth sub-slot 109. Specifically, in this embodiment, there are two negative pins 3 and two positive pins 4, spaced apart. There is one grounding pin 2 and one first sub-slot 106. There are 12 signal pins 5 arranged in an array to achieve different functions.

[0041] Furthermore, the first sub-slot 106 and the fourth sub-slot 109 are both located between the second sub-slot 107 and the third sub-slot 108. This ensures that the grounding pin 2 and the signal pin 5 are both located between the positive pin 4 and the negative pin 3, which can reduce electromagnetic interference, optimize signal integrity, and improve the safety and heat dissipation efficiency of the connector.

[0042] In one embodiment, the plug-in platform 104 is provided with a first anti-misplacement platform 110 and a second anti-misplacement platform 111 on its side. The first anti-misplacement platform 110 and the second anti-misplacement platform 111 are centrally symmetrical about the plug-in platform 104. The first anti-misplacement platform 110 and the second anti-misplacement platform 111 force the plug to be inserted into the socket in the correct direction to prevent mis-insertion and avoid damage to the connector or circuit failure caused by incorrect power supply.

[0043] Furthermore, both the first anti-misplacement platform 110 and the second anti-misplacement platform 111 are provided with anti-misplacement grooves 112. The anti-misplacement grooves 112 are polygonal grooves to prevent mis-insertion and further improve the anti-misplacement effect.

[0044] In one embodiment, the negative electrode needle 3 further has a second connecting end 33 connected to the second mounting portion 31. The second mounting portion 31 is located between the second connecting end 33 and the second plug-in end 32. The second connecting end 33 extends to the outside of the base body 1 in a direction away from the second plug-in end 32 and is provided with a first threaded hole 34. The positive electrode needle 4 further has a third connecting end 43 connected to the third mounting portion 41. The third mounting portion 41 is located between the third connecting end 43 and the third plug-in end 42. The third connecting end 43 extends to the outside of the base body 1 in a direction away from the third plug-in end 42 and is provided with a second threaded hole 44. The second connecting end 33 and the third connecting end 43 are respectively used for connecting external copper busbars, and the first threaded hole 34 and the second threaded hole 44 facilitate the connection of external copper busbars.

[0045] Optionally, multiple first threaded holes 34 and multiple second threaded holes 44 are provided to improve the reliability of the connection with the copper busbar. In this embodiment, each negative electrode needle 3 has two first threaded holes 34 at its second connection end 33, and each positive electrode needle 4 has two second threaded holes 44 at its third connection end 43. This effectively ensures the contact reliability of the equipment. Even if one screw is loose, another screw will be tightened, ensuring reliable current transmission in the circuit. This provides workers with ample time for regular circuit maintenance and adds an extra layer of safety to the equipment.

[0046] In one embodiment, the base 1 includes a housing 101 and a fixing member 102. The base 1 is provided with a slot, and the fixing member 102 is engaged in the slot and together with the base 1 forms a clamping cavity. The clamping cavity communicates with the docking groove 105. The first mounting part 21, the second mounting part 31, the third mounting part 41, and the fourth mounting part 51 are all engaged in the clamping cavity to facilitate the installation, disassembly, and maintenance of the grounding needle 2, the negative electrode needle 3, the positive electrode needle 4, and the signal needle 5.

[0047] Optionally, the clamping cavity is divided into multiple sub-cavities by a partition, and the first mounting part 21, the second mounting part 31, the third mounting part 41, and the fourth mounting part 51 are respectively clamped in different sub-cavities.

[0048] Furthermore, the first plug-in terminal 22, the second plug-in terminal 32, the third plug-in terminal 42, and the fourth plug-in terminal 52 are all provided with rounded corners to facilitate the insertion of the grounding pin 2, the negative pin 3, the positive pin 4, and the signal pin 5 into the socket terminals.

[0049] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A connector, characterized in that, include: The base (1) has an abutment surface (103) and a plug-in platform (104) provided on the abutment surface (103); the plug-in platform (104) is provided with a mating groove (105); The grounding pin (2) has a first mounting portion (21) installed on the base (1) and a first plug-in end (22) located in the docking groove (105) and extending in a direction close to the groove opening of the docking groove (105); The negative electrode needle (3) has a second mounting part (31) installed on the base (1) and a second plug-in end (32) located in the docking groove (105) and extending in the direction close to the groove opening of the docking groove (105); The positive electrode needle (4) has a third mounting part (41) installed on the base (1) and a third plug-in end (42) located in the docking groove (105) and extending in the direction close to the groove opening of the docking groove (105); The signal pin (5) has a fourth mounting part (51) mounted on the base (1) and a fourth plug end (52) located in the docking groove (105) and extending in a direction close to the groove opening of the docking groove (105). The distance between the first plug-in end (22) and the abutment surface (103), the distance between the second plug-in end (32) and the abutment surface (103), the distance between the third plug-in end (42) and the abutment surface (103), and the distance between the fourth plug-in end (52) and the abutment surface (103) gradually decrease.

2. The connector according to claim 1, characterized in that, The docking slot (105) includes a first sub-slot (106), a second sub-slot (107), a third sub-slot (108), and a fourth sub-slot (109) arranged at intervals; the grounding pin (2) is located in the first sub-slot (106), the negative pin (3) is located in the second sub-slot (107), the positive pin (4) is located in the third sub-slot (108), and the signal pin (5) is located in the fourth sub-slot (109).

3. The connector according to claim 2, characterized in that, There are multiple negative electrode needles (3), positive electrode needles (4), signal needles (5), second sub-slots (107), and third sub-slots (108). Multiple negative electrode needles (3) correspond one-to-one with multiple second sub-slots (107), and multiple positive electrode needles (4) correspond one-to-one with multiple third sub-slots (108). There is one fourth sub-slot (109), and all signal needles (5) are located in the fourth sub-slot (109).

4. The connector according to claim 2, characterized in that, The first sub-slot (106) and the fourth sub-slot (109) are both located between the second sub-slot (107) and the third sub-slot (108).

5. The connector according to any one of claims 1 to 4, characterized in that, The side of the plug-in platform (104) is provided with a first anti-mistake platform (110) and a second anti-mistake platform (111), and the first anti-mistake platform (110) and the second anti-mistake platform (111) are centrally symmetrical about the plug-in platform (104).

6. The connector according to claim 5, characterized in that, Both the first error-proofing platform (110) and the second error-proofing platform (111) are provided with error-proofing grooves (112).

7. The connector according to any one of claims 1 to 4, characterized in that, The negative electrode needle (3) also has a second connecting end (33) connected to the second mounting part (31). The second mounting part (31) is located between the second connecting end (33) and the second plug-in end (32). The second connecting end (33) extends to the outside of the base (1) in a direction away from the second plug-in end (32) and is provided with a first threaded hole (34). The positive electrode needle (4) also has a third connecting end (43) connected to the third mounting part (41). The third mounting part (41) is located between the third connecting end (43) and the third plug-in end (42). The third connecting end (43) extends to the outside of the base body (1) in a direction away from the third plug-in end (42) and is provided with a second threaded hole (44).

8. The connector according to claim 7, characterized in that, The first threaded hole (34) is provided in multiple ways, and the second threaded hole (44) is provided in multiple ways.

9. The connector according to any one of claims 1 to 4, characterized in that, The base (1) includes a shell (101) and a fixing member (102); the base (1) is provided with a slot, the fixing member (102) is engaged in the slot and together with the base (1) to form a clamping cavity, the clamping cavity is connected to the docking groove (105), and the first mounting part (21), the second mounting part (31), the third mounting part (41) and the fourth mounting part (51) are all engaged in the clamping cavity.

10. The connector according to any one of claims 1 to 4, characterized in that, The first plug-in end (22), the second plug-in end (32), the third plug-in end (42), and the fourth plug-in end (52) are all provided with rounded corners.

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