A high current connector

Abstract

The utility model relates to connector technical field, concretely relates to a large current connector, include: socket, socket is equipped with the slot, and its inner periphery edge is distributed with at least one anti -rotation boss, at least one plug, the plug includes the plug -in portion of the insertion groove, and the end surface edge of plug -in portion is equipped with the anti -rotation groove corresponding with anti -rotation boss, when the plug -in portion inserts the insertion groove, anti -rotation boss and anti -rotation groove each other inlaying, to limit the rotation of plug relative to socket, in the utility model, through being equipped with multiple evenly distributed anti -rotation boss in the inner periphery edge of insertion groove, and the end surface edge of plug -in portion has the anti -rotation groove matched with it, and the inlaying of both can effectively limit the rotation of plug, and the stability of connection is enhanced, and all -round anti -rotation and can disperse stress, avoid anti -rotation boss damage deformation, ensure that the current stable transmission, reduce the trouble and the potential safety hazard.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a high-current connector. Background Technology

[0002] Energy storage cabinets, as core equipment for storing and releasing electrical energy, are widely used in grid peak shaving, renewable energy grid connection, and data center backup power. Their internal battery modules, power conversion systems (PCS), and power distribution units require efficient electrical connections via high-current connectors. These connectors must withstand currents ranging from hundreds to thousands of amperes, and their performance directly affects the energy conversion efficiency and operational stability of the energy storage system.

[0003] However, traditional high-current connectors have many design shortcomings. Most use a single screw or a simple snap-fit ​​structure, which is extremely vulnerable to the continuous mechanical vibrations generated during the operation of energy storage devices. Prolonged vibration can easily loosen the screw, and the snap-fit ​​structure may fail due to frequent stress. Once the screw or snap-fit ​​loosens, the contact resistance inside the connector increases significantly. According to relevant physical principles, increased resistance inevitably leads to the generation of a large amount of heat locally, causing localized overheating. Localized overheating not only accelerates the wear and tear of the connector's internal materials, shortening its lifespan, but more seriously, in extreme cases, it may even cause a fire, resulting in devastating damage to the energy storage device. Furthermore, existing traditional connectors lack multi-level locking mechanisms; if a problem occurs at any fixing point, the overall connection stability of the connector cannot be guaranteed, easily leading to electrical connection interruptions.

[0004] In addition, there is a risk of connectors falling off due to improper operation during routine plugging and unplugging or maintenance. Currently, existing technologies mainly rely on friction or simple slots to prevent connectors from falling off. However, this method cannot provide sufficient resistance when faced with accidental pulling or sagging due to gravity. Connectors can easily fall off unexpectedly under these external forces, affecting the normal operation of the energy storage system.

[0005] Therefore, this application develops a high-current connector to solve the problems existing in the prior art. Utility Model Content

[0006] The purpose of this invention is to provide a high-current connector to solve the problem of unstable connection of high-current connectors in energy storage cabinets in the prior art.

[0007] The technical solution of this utility model is: a high-current connector, comprising: A socket having a slot and at least one anti-rotation protrusion distributed along its inner peripheral edge; At least one plug, the plug including a insertion portion that inserts into the slot, the end face edge of the insertion portion having an anti-rotation groove corresponding to the anti-rotation protrusion; When the insertion part is inserted into the slot, the anti-rotation protrusion and the anti-rotation groove engage with each other to restrict the plug from rotating relative to the socket.

[0008] Preferably, the anti-rotation protrusions are evenly distributed circumferentially with the center of the slot as the center. One end of each anti-rotation protrusion is connected to the inner wall of the slot, and the other end extends toward the center of the slot and is fixed to the bottom surface of the slot.

[0009] Preferably, the socket further includes a conductive part and a housing, the slot is formed between the conductive part and the housing, and the end of the housing extends radially outward to form an abutment part, the abutment part having an abutment surface; The plug also includes a housing, and the housing and the insertion part form a receiving cavity; The plug is provided with a locking mechanism, which includes an elastic element and a contact portion driven by the elastic element. The contact portion has a contact surface that is adapted to the abutment surface. When the plug is inserted into the socket, the abutting part extends into the receiving cavity, and the contact part abuts against the abutting part inside the receiving cavity to prevent the plug from coming out of the socket.

[0010] Preferably, both the contact surface and the abutting surface are mutually matching bevels. When the plug is inserted into the socket, the abutting part is guided by the bevel to push the contact part to overcome the elastic force of the elastic element and move into the housing. When the anti-rotation protrusion and the anti-rotation groove are engaged in place, the contact part is reset to the receiving cavity under the drive of the elastic element, thereby locking.

[0011] Preferably, a sealing ring is provided on the circumferential outer wall surface of the insertion part, the sealing ring having three sealing rings evenly distributed along its own axial direction and protruding radially outward.

[0012] Preferably, the abutting part is provided with at least one limiting groove, and the inner wall surface of the outer shell is provided with a limiting block that matches the limiting groove. When the plug is engaged with the socket, the limiting block and the limiting groove are fitted together to form an anti-misinsertion structure to prevent different types of plugs from being incorrectly connected to the socket.

[0013] Compared with the prior art, the advantages of this utility model are: (1) There are multiple evenly distributed anti-rotation protrusions on the inner periphery of the slot, and there is a matching anti-rotation groove on the end face of the insertion part. The two fit together to effectively limit the rotation of the plug, enhance the connection stability, prevent rotation in all directions and distribute the force, avoid damage and deformation of the anti-rotation protrusions, ensure stable current transmission, and reduce faults and safety hazards. (2) The socket has a contact part, the plug has a receiving cavity and a locking mechanism. When plugged in, the contact part can move. After it is in place, the elastic element drives the contact part to reset and tightly abut against the contact part to form a mechanical lock to prevent the plug from coming out. One end of the contact part protrudes for the operator to press so that the plug can be pulled out. (3) A sealing ring is fitted on the outer wall of the insertion part. There are three radially outward protruding sealing rings evenly distributed. When inserted into the slot, multiple sealing lines are formed to improve the dustproof and waterproof level and protect the internal electrical components. (4) The contact part is provided with multiple limiting grooves and the inner wall of the outer shell is provided with matching limiting blocks. Only plugs and sockets with matching models can be successfully connected to avoid accidental insertion. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of a high-current connector according to the present invention; Figure 2 This is a schematic diagram of the structure of the plug described in this utility model; Figure 3 This is a cross-sectional view of the interior of the plug described in this utility model; Figure 4 This is a bottom sectional view of the plug described in this utility model; Figure 5 This is a top view of the socket described in this utility model; Figure 6 This is a schematic diagram of the socket described in this utility model.

[0015] The components are: 1. Socket; 11. Slot; 12. Anti-rotation protrusion; 13. Conductive part; 14. Housing; 141. Abutting part; 1411. Abutting surface; 1412. Limiting groove; 2. Plug; 21. Insertion part; 22. Anti-rotation groove; 23. Locking mechanism; 231. Elastic element; 232. Contact part; 2321. Contact surface; 24. Outer shell; 241. Limiting block; 25. Receiving cavity; 3. Sealing ring; 31. Sealing ring. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to specific embodiments: like Figures 1-3As shown, a high-current connector includes a socket 1 and a plug 2. The socket 1 has a slot 11 for accommodating the insertion portion 21 of the plug 2 to achieve electrical connection. The connector has two plugs 2, each with an insertion portion 21, which are inserted into corresponding slots 11 of the two sockets 1, thus establishing a current transmission channel. The two plugs 2 are connected by a copper busbar formed by a crimping process. In high-current transmission scenarios, connectors are often subjected to various external forces, such as mechanical vibration and accidental pulling. Traditional connectors lack effective anti-rotation structures, allowing the plug 2 to easily rotate relative to the socket 1, leading to poor contact and affecting stable current transmission. Therefore... In this embodiment, multiple anti-rotation protrusions 12 are distributed on the inner peripheral edge of the slot 11, and an anti-rotation groove 22 corresponding to the anti-rotation protrusions 12 is provided on the end face edge of the insertion part 21. The shape, position and size of the anti-rotation groove 22 match the anti-rotation protrusions 12. When the insertion part 21 of the plug 2 is inserted into the slot 11 of the socket 1, the anti-rotation protrusions 12 and the anti-rotation groove 22 fit together, which can effectively limit the rotation of the plug 2 relative to the socket 1, greatly enhance the connection stability between the plug 2 and the socket 1, and ensure continuous and stable current transmission even in complex working environments, reducing faults and safety hazards caused by loose connections.

[0017] Specifically, the anti-rotation protrusions 12 are evenly distributed around the center of the slot 11, with one end tightly connected to the inner wall of the slot 11, and the other end extends towards the center of the slot 11 and is finally fixed on the bottom surface of the slot 11. This arrangement creates a stable structural layout of the anti-rotation protrusions 12 within the slot 11. Regardless of the direction of the torsional force applied to the plug 2 after insertion into the slot 11, at least one anti-rotation protrusion 12 will effectively engage with the anti-rotation groove 22 on the plug 2, forming resistance and thus comprehensively restricting the rotation of the plug 2 relative to the socket 1, ensuring stable current transmission. Furthermore, the evenly distributed anti-rotation protrusions 12 can distribute the force evenly across the protrusions when subjected to the force generated by the rotation of the plug 2, preventing excessive localized stress that could damage or deform the anti-rotation protrusions 12.

[0018] In this embodiment, the socket 1 is mainly composed of a conductive part 13 and a housing 14. A slot 11 is formed between the conductive part 13 and the housing 14. The end of the housing 14 extends radially outward to form an abutment part 141 with an abutment surface 1411. The plug 2 includes a housing 24 and an insertion part 21. The housing 24 and the insertion part 21 form a receiving cavity 25. Furthermore, a locking mechanism 23 is provided inside the plug 2. The locking mechanism 23 includes an elastic element 231 and a contact part 232 driven by the elastic element 231. The contact part 232 has a contact surface 2321 that matches the abutment surface 1411. When plug 2 needs to be plugged into socket 1, the insertion part 21 of plug 2 is aligned with the slot 11 of socket 1 and inserted. After being inserted into place, the abutment part 141 is located between the contact part 232 and the bottom surface of the receiving space, which can effectively prevent plug 2 from coming out of socket 1, enhance the stability of the connection between plug 2 and socket 1, ensure that the current can be transmitted continuously and stably, and reduce safety hazards such as poor contact and electric arc caused by loose connection.

[0019] Specifically, such as Figure 3 As shown, the contact surface 2321 and the abutment surface 1411 are mutually matching inclined surfaces. When the operator inserts the plug 2 into the socket 1, the abutment part 141 of the socket 1 will gradually approach the receiving cavity 25 of the plug 2. As the insertion progresses, the abutment surface 1411 and the contact surface 2321 come into contact with each other. Since the two are mutually matching inclined surfaces, the abutment part 141 will generate a component force along the inclined surface direction on the contact part 232 under the guidance of the inclined surface, thereby pushing the contact part 232 to overcome the elastic force of the elastic element 231 and move towards the inside of the plug 2 housing 24. When the anti-rotation protrusion 12 and the anti-rotation groove 22 are engaged in place, it means that the circumferential position of the plug 2 on the socket 1 has been fixed and the correct insertion position has been achieved. At this time, the previously compressed elastic element 231 begins to release the stored elastic potential energy, driving the contact part 232 to reset and return to the receiving cavity 25 of the plug 2. After resetting, the contact part 232 will tightly abut against the abutment part 141, forming a mechanical locking state, which effectively restricts the plug 2 from coming out of the socket 1 and achieves a stable and reliable connection. Furthermore, one end of the contact part 232 protrudes outside the outer shell 24 for the operator to press. When it is necessary to pull out the plug 2, pressing the contact part 232 will cause the contact part 232 to retract into the outer shell 24, thereby freeing the abutment part 141 from being restricted.

[0020] To improve the waterproof performance of the connector, a sealing ring 3 is fitted on the outer wall of the insertion part 21. Three sealing rings 31 are evenly distributed along its axial direction, and all three sealing rings 31 protrude radially outward. When the insertion part 21 of the plug 2 is inserted into the slot 11 of the socket 1, the three evenly distributed and radially protruding sealing rings 31 form multiple sealing lines. After being squeezed, they fit tightly against the inner wall of the slot 11. The multi-level sealing design greatly improves the dustproof and waterproof level of the connector and effectively protects the internal electrical components of the connector from damage.

[0021] like Figures 4-5 As shown, in order to avoid mis-insertion, multiple limiting grooves 1412 are provided on the abutment part 141, and the inner wall surface of the outer shell 24 is provided with limiting blocks 241 that match the limiting grooves 1412. The shape, size and position of the limiting blocks 241 correspond to the limiting grooves 1412, and the two can fit together precisely.

[0022] When the plug 2 is connected to the socket 1, as the plug 2 is inserted, the limiting block 241 on the inner wall of the outer shell 24 gradually approaches the limiting groove 1412 of the socket 1 abutment part 141. When the plug 2 is inserted into the correct position, the limiting block 241 will fit into the limiting groove 1412, achieving mutual engagement. In practical applications, if an incompatible plug 2 is mistakenly inserted into the socket 1, it may cause a short circuit in the electrical system, damage to equipment, or even serious safety accidents such as fire. Therefore, the design of the limiting groove 1412 and the limiting block 241 ensures that only plugs 2 and sockets 1 with matching models can be successfully connected, avoiding mis-insertion.

[0023] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. A high-current connector, characterized in that, include: The socket (1) is provided with a slot (11) and at least one anti-rotation protrusion (12) is distributed on its inner peripheral edge. At least one plug (2), the plug (2) includes a insertion part (21) that is inserted into the slot (11), and the end face edge of the insertion part (21) is provided with an anti-rotation groove (22) corresponding to the anti-rotation protrusion (12). When the insertion part (21) is inserted into the slot (11), the anti-rotation protrusion (12) and the anti-rotation groove (22) engage with each other to restrict the plug (2) from rotating relative to the socket (1).

2. A high-current connector according to claim 1, characterized in that: The anti-rotation protrusions (12) are evenly distributed circumferentially with the center of the slot (11) as the center. One end of each anti-rotation protrusion (12) is connected to the inner wall of the slot (11), and the other end extends toward the center of the slot (11) and is fixed to the bottom surface of the slot (11).

3. A high-current connector according to claim 2, characterized in that: The socket (1) further includes a conductive part (13) and a housing (14), the slot (11) is formed between the conductive part (13) and the housing (14), and the end of the housing (14) extends radially outward to form an abutment part (141), the abutment part (141) having an abutment surface (1411). The plug (2) also includes a housing (24), which forms a receiving cavity (25) with the insertion part (21). The plug (2) is provided with a locking mechanism (23), which includes an elastic element (231) and a contact portion (232) driven by the elastic element (231). The contact portion (232) has a contact surface (2321) that is adapted to the abutment surface (1411). When the plug (2) is inserted into the socket (1), the abutment (141) extends into the receiving cavity (25), and the contact (232) abuts against the abutment (141) in the receiving cavity (25) to prevent the plug (2) from coming out of the socket (1).

4. A high-current connector according to claim 3, characterized in that: Both the contact surface (2321) and the abutting surface (1411) are mutually matching inclined surfaces. When the plug (2) is inserted into the socket (1), the abutting part (141) is guided by the inclined surface to push the contact part (232) to overcome the elastic force of the elastic element (231) and move into the housing (24). When the anti-rotation protrusion (12) and the anti-rotation groove (22) are fitted into each other, the contact part (232) is driven by the elastic element (231) to return to the receiving cavity (25) and lock.

5. A high-current connector according to claim 1, characterized in that: A sealing ring (3) is provided on the circumferential outer wall surface of the insertion part (21). The sealing ring (3) has three sealing rings (31) that are evenly distributed along their own axial direction and protrude radially outward.

6. A high-current connector according to claim 3, characterized in that: The abutment part (141) is provided with at least one limiting groove (1412), and the inner wall surface of the outer shell (24) is provided with a limiting block (241) that matches the limiting groove (1412). When the plug (2) is engaged with the socket (1), the limiting block (241) and the limiting groove (1412) are fitted together to form an anti-misinsertion structure to prevent different types of plugs (2) from being incorrectly connected to the socket (1).

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