Medium voltage interlock connector

Abstract

The invention discloses a medium-voltage interlocking connector, and relates to the technical field of connectors. A medium-voltage interlocking connector comprises a first seat body and a second seat body which can move oppositely, the first seat body is provided with a first elastic terminal and a second elastic terminal, the second seat body is provided with a butt joint set, and the distance between the first elastic terminal and the butt joint set is larger than the distance between the second elastic terminal and the butt joint set. When the first elastic terminal and the second elastic terminal abut against the butt joint set, the first seat body is provided with a first position relative to the second seat body. When the second elastic terminal is independently abutted against the butting group, the seat body I is provided with a second position relative to the seat body II; the first seat body and the second seat body are jointly connected with a driving mechanism, and the driving mechanism enables the first seat body to be located at the first position or the second position. According to the invention, the safety of electric connection can be ensured.

Description

Technical Field

[0001] This application relates to the technical field of connectors, and in particular to a medium-voltage interlocking connector. Background Technology

[0002] Currently, the energy efficiency and safety requirements of power supply systems in fields such as new energy vehicles and industrial energy storage are gradually increasing. Medium-voltage systems, due to their balanced advantages in energy efficiency and safety, have become the mainstream choice for core power supply architectures in these fields. Connectors, as key components for power transmission and signal interaction in medium-voltage systems, directly affect the operational stability of the entire system through their connection reliability and insertion / removal safety. Therefore, the performance requirements for medium-voltage connectors in related fields are becoming increasingly stringent.

[0003] Within the existing mature high-voltage connector technology framework, and based on the requirement that existing medium-voltage connectors simultaneously meet the functions of reliable current transmission and signal partitioning interaction, connectors often adopt a design with multiple terminals in parallel, using mechanical structures to enable multiple terminals to move synchronously and connect at the same time.

[0004] Designers aim to group multiple terminals and connect them sequentially to ensure electrical connection safety. Even in medium-voltage environments, when multiple terminals are simultaneously connected, they directly form a closed loop between the medium-voltage power supply and the energy storage element. Since the energy storage element has zero voltage or zero current in its initial state, there will be a huge potential difference or energy difference between the energy storage element and the medium-voltage power supply. This will cause a surge current, or transient current, that far exceeds the normal operating current at the moment of connection. This transient current will cause severe electrolytic corrosion to the terminal contacts, accelerate contact wear, and may also break down the insulating components in the circuit, causing partial discharge or short circuit, or even causing the power supply protection device to malfunction, affecting the stability of the entire system. Summary of the Invention

[0005] To ensure the safety of electrical connections, this application provides a medium-voltage interlock connector.

[0006] The medium-voltage interlock connector provided in this application adopts the following technical solution: A medium-voltage interlocking connector includes a first base and a second base that can move towards each other. The first base is provided with a first elastic terminal and a second elastic terminal, and the second base is provided with a mating group. The distance between the first elastic terminal and the mating group is greater than the distance between the second elastic terminal and the mating group. When both the first elastic terminal and the second elastic terminal abut against the mating group, the first base has a first position relative to the second base. When the second elastic terminal abuts against the mating group alone, the first base has a second position relative to the second base. The first base and the second base are jointly connected to a driving mechanism, which enables the first base to be in either the first position or the second position.

[0007] By adopting the above technical solution, the connection between the first elastic terminal and the docking group, and the connection between the second elastic terminal and the docking group, can be performed sequentially. The driving mechanism brings the first and second bases closer together, causing the first base to reach the second position. At this point, the second elastic terminal individually abuts against the docking group. This individual connection of the second elastic terminal to the docking group establishes a pre-detection or pre-charge circuit in advance, mitigating the risk of transient current during momentary conduction. Then, the driving mechanism brings the first base to the first position, at which point both the first and second elastic terminals abut against the docking group, completing the connection. This application enables multiple elastic terminals to be grouped and connected sequentially to ensure the safety of the electrical connection.

[0008] Preferably, the driving mechanism includes a mounting frame, the second seat is slidably connected to the mounting frame, the first seat moves in a first direction, and the second seat can slide on the mounting frame along the first direction; the second seat is also slidably connected to a gear, the first seat is connected to a mounting shell, the mounting shell is rotatably connected to a gear that meshes with the gear, the gear is slidably connected to the second seat, and the rotation of the gear can drive the gear to move, thereby driving the first seat and the second seat to move towards each other / away from each other through the slidable connection between the gear and the second seat.

[0009] By adopting the above technical solution, rotating the gear component can drive the tooth condition to move, thereby driving the seat one and seat two to move towards or away from each other through the sliding connection between the tooth condition and seat two, so that seat one reaches the first position or the second position.

[0010] Preferably, the second base has a sliding post, the tooth condition includes a snap-fit ​​groove, and the sliding post is slidably connected to the snap-fit ​​groove; the moving direction of the tooth condition is a second direction, the mounting frame has a first end and a second end opposite to each other in the second direction, and the snap-fit ​​groove is inclined towards the first base from the first end to the second end.

[0011] By adopting the above technical solution, the structural design of the snap-fit ​​groove and the cooperation between the snap-fit ​​groove and the sliding column enable the movement of the tooth condition to drive the reliable movement of the seat body two.

[0012] Preferably, the snap-fit ​​groove is provided in multiple ways, and the multiple snap-fit ​​grooves are evenly arranged along the direction from the first end to the second end.

[0013] By adopting the above technical solution, the movement of the second seat is stabilized.

[0014] Preferably, the gear component has a handle for driving the gear component to rotate, and the mounting housing also has a first limiting member and a second limiting member, which are located on both sides of the handle to limit the movement stroke of the handle.

[0015] Preferably, the handle has deformability, the handle includes a plurality of locking slots distributed on the handle along the handle rotation direction, and the mounting housing has a locking block for engaging with the locking slots.

[0016] Preferably, there are two locking slots, namely a first locking slot and a second locking slot, and a locking area is formed between the first limiting member and the locking block to lock the handle. When the handle is engaged in the engagement area, the first seat is in the first position; when the locking block is engaged in the first locking groove, the first seat is in the second position; when the locking block is engaged in the second locking groove, both the first and second elastic terminals are separated from the mating assembly; when the locking block abuts against the second limiting member, the first seat and the second seat are separated.

[0017] By adopting the above technical solution, the locking block can be engaged into different locking slots by rotating the handle.

[0018] To completely separate seat one from seat two, the locking block needs to be pressed against the second limiting member; When it is necessary to mate the first seat body with the second seat body, but the first elastic terminal and the second elastic terminal have not yet been mated with the mating group, the locking block needs to be inserted into the second locking groove. When the base is to be in the second position, i.e., the second elastic terminal is to be in contact with the docking group alone for current pre-charging, the locking block needs to be inserted into the first locking groove. When the base is to be in the first position such that both the first and second elastic terminals abut against the mating assembly, the handle needs to be snapped into the snapping area.

[0019] Preferably, the mounting shell has a vertical abutment groove and a horizontal abutment block, and the mounting frame has a vertical abutment block and a horizontal abutment groove. The vertical abutment block is engaged with the vertical abutment groove, and the horizontal abutment block is engaged with the horizontal abutment groove.

[0020] In summary, the present invention has at least one of the following beneficial technical effects: 1. The connection between the first elastic terminal and the docking group, and the connection between the second elastic terminal and the docking group, can be performed sequentially. A driving mechanism brings the first and second bases closer together, causing the first base to reach a second position. At this point, the second elastic terminal individually abuts against the docking group. This individual connection of the second elastic terminal to the docking group establishes a pre-detection or pre-charge circuit in advance, mitigating the risk of transient current during momentary conduction. Then, the driving mechanism brings the first base to a first position, at which point both the first and second elastic terminals abut against the docking group, completing the connection. This application enables multiple elastic terminals to be grouped and connected sequentially to ensure the safety of the electrical connection. 2. By rotating the handle, the locking block can be engaged into different locking slots. To completely separate seat one from seat two, the locking block needs to be pressed against the second limiting member; to engage seat one and seat two but before the first and second elastic terminals are engaged with the mating group, the locking block needs to be engaged into the second locking slot; to position seat one in the second position, i.e., the second elastic terminal is engaged with the mating group alone for current pre-charging, the locking block needs to be engaged into the first locking slot; to position seat one in the first position so that both the first and second elastic terminals are engaged with the mating group, the handle needs to be engaged into the engagement area. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the medium-pressure interlock connector in the embodiments of this application; Figure 2 This is a structural diagram used to illustrate the card plate; Figure 3 This is a cross-sectional view used to illustrate the first and second elastic terminals; Figure 4 This is a sectional view used to show the card slot; Figure 5 This is a cross-sectional view used to show the handle.

[0022] The attached diagram shows the following markings: 1. Base 1; 11. First elastic terminal; 12. Second elastic terminal; 13. Clamping plate; 14. Vertical abutment groove; 15. Horizontal abutment groove; 2. Base 2; 21. Connecting assembly; 22. Clamping groove; 23. Sliding column; 3. Drive mechanism; 31. Mounting frame; 311. Vertical abutment block; 312. Horizontal abutment groove; 313. First end; 314. Second end; 32. Gear condition; 321. Clamping groove; 33. Mounting shell; 331. Vertical abutment groove; 332. Horizontal abutment block; 333. First limiting member; 334. Second limiting member; 34. Gear component; 35. Handle; 351. First locking groove; 352. Second locking groove; 36. Clamping area; 4. Locking block. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0025] This application discloses a medium-voltage interlock connector. It is used to achieve hierarchical connections to ensure the safety of electrical connections.

[0026] Reference Figure 1 , Figure 2 and Figure 3 The medium-voltage interlock connector includes a base 1 and a base 2 that are movable towards each other and interlocked. Base 1 is located above base 2. Base 1 has a first elastic terminal 11 and a second elastic terminal 12. Base 2 has a mating group 21. The distance between the first elastic terminal 11 and the mating group 21 is greater than the distance between the second elastic terminal 12 and the mating group 21. Specifically, base 1 has a locking plate 13, and base 2 has a locking groove 22. By locking the locking plate 13 into the locking groove 22, the relative positions of base 1 and base 2 are initially defined. At this time, base 2 and base 1 can still move relative to each other, but the first elastic terminal 11 and the second elastic terminal 12 have not yet abutted against the mating group 21. In addition, in order to ensure reliable electrical connection, multiple first elastic terminals 11 and multiple second elastic terminals 12 are provided in this application.

[0027] Reference Figure 1 and Figure 3 When both the first elastic terminal 11 and the second elastic terminal 12 abut against the mating assembly 21, the first seat 1 has a first position relative to the second seat 2; when only the second elastic terminal 12 abuts against the mating assembly 21, the first seat 1 has a second position relative to the second seat 2. Figure 3 The diagram shows the first seat 1 in the second position; additionally, there is an intermediate position where both the first elastic terminal 11 and the second elastic terminal 12 are separated from the docking assembly 21, but the first seat 1 is not separated from the second seat 2; and a separation position where the first seat 1 and the second seat 2 are completely separated. The first seat 1 and the second seat 2 are connected to a drive mechanism 3, which enables the first seat 1 to be in the first position, the second position, the intermediate position, and the separation position.

[0028] Reference Figure 1 and Figure 4 The drive mechanism 3 includes a mounting frame 31, and a second seat 2 slidably connected to the mounting frame 31. The first seat 1 moves in a first direction, which is vertical in this embodiment. The second seat 2 can slide along the first direction on the mounting frame 31. The second seat 2 is also slidably connected to a gear condition 32. A mounting shell 33 is connected to the first seat 1. The mounting shell 33 is rotatably connected to a gear component 34 that meshes with the gear condition 32. The gear condition 32 is slidably connected to the second seat 2. The rotation of the gear component 34 can drive the gear condition 32 to move, thereby driving the first seat 1 and the second seat 2 to move towards each other / away from each other through the sliding connection between the gear condition 32 and the second seat 2.

[0029] Reference Figure 1 and Figure 2In order to facilitate the disassembly and disassembly of the mounting shell 33, the mounting shell 33 has a vertical abutment groove 14 and a horizontal abutment block 332. The mounting frame 31 has a vertical abutment block 311 and a horizontal abutment groove 312. The vertical abutment block 311 is engaged with the vertical abutment groove 14, and the horizontal abutment block 332 is engaged with the horizontal abutment groove 312.

[0030] Reference Figure 4 Specifically, the second seat 2 has a sliding post 23, and the tooth condition 32 includes a snap-fit ​​groove 321. The sliding post 23 is slidably connected to the snap-fit ​​groove 321. The moving direction of the tooth condition 32 is a second direction, which is transverse. The mounting frame 31 has a first end 313 and a second end 314 opposite to each other in the second direction. The snap-fit ​​groove 321 is inclined towards the direction close to the first seat 1 from the first end 313 to the second end 314.

[0031] By rotating the gear component 34, the gear condition 32 can be moved to the left, and under the guidance of the engagement groove 321 and the sliding column 23, the seat body 2 can be moved downward, that is, away from the seat body 1.

[0032] Reference Figure 4 To ensure the reliable movement of the second seat 2, multiple locking slots 321 are provided, and the multiple locking slots 321 are evenly arranged along the direction from the first end 313 to the second end 314.

[0033] Reference Figure 1 and Figure 4 In order to facilitate the rotation of the gear component 34 and make the rotation angle of the gear component 34 controllable, the gear component 34 has a handle 35. The handle 35 is used to drive the gear component 34 to rotate. The mounting shell 33 also has a first limiting member 333 and a second limiting member 334. The first limiting member 333 is located to the left of the second limiting member 334. The first limiting member 333 and the second limiting member 334 are located on both sides of the handle 35 to limit the movement stroke of the handle 35.

[0034] When the handle 35 is rotated to abut against the first limiting member 333, the tooth condition 32 is at the right limit position and the seat 1 is at the first position; when the handle 35 is rotated to abut against the second limiting member 334, the tooth condition 32 is at the left limit position, the seat 1 and the seat 2 are separated and neither the first elastic terminal 11 nor the second elastic terminal 12 abuts against the docking group 21.

[0035] Reference Figure 4 and Figure 5 The handle 35 has the ability to deform and includes multiple locking slots distributed on the handle 35 along the rotation direction of the handle 35. The mounting housing 33 has a locking block 4 for engaging with the locking slots.

[0036] Reference Figure 4 and Figure 5In this embodiment, there are two locking slots, namely a first locking slot 351 and a second locking slot 352. The first locking slot 351 is located to the left of the second locking slot 352. A locking area 36 is formed between the first limiting member 333 and the locking block 4, which can lock the handle 35. When the handle 35 is locked in the locking area 36, ​​the seat 1 is in the first position; when the locking block 4 is locked in the first locking slot 351, the seat 1 is in the second position; when the locking block 4 is locked in the second locking slot 352, the first elastic terminal 11 and the second elastic terminal 12 are both separated from the docking group 21, and the seat 1 is in the middle position; when the locking block 4 abuts against the second limiting member 334, the seat 1 is separated from the seat 2, and the seat 1 is in the separated position.

[0037] When it is necessary to completely separate the seat 1 and the seat 2, the locking block 4 needs to be pressed against the second limiting member 334. At this time, the seat 1 and the seat 2 are completely separated and neither the first elastic terminal 11 nor the second elastic terminal 12 is in contact with the docking group 21. When it is necessary to mate the first seat 1 with the second seat 2, but the first elastic terminal 11 and the second elastic terminal 12 have not yet been mated with the mating group 21, the locking block 4 needs to be inserted into the second locking groove 352. When the base 1 is to be in the second position, that is, when the second elastic terminal 12 is to be in contact with the docking group 21 alone for current pre-charging or pre-detection, the locking block 4 needs to be inserted into the first locking groove 351. When the base 1 is to be in the first position so that the first elastic terminal 11 and the second elastic terminal 12 are both in contact with the mating group 21, and at this time the base 1 and the base 2 are also engaged, the handle 35 needs to be snapped into the snapping area 36.

[0038] The hierarchical electrical connection method in this application relies on a mechanical structure, which provides high safety and reliable connection.

[0039] The implementation principle of the medium-pressure interlock connector in this embodiment is as follows: by applying force to the handle 35, the handle 35 is moved to different positions, thereby changing the position of the locking block 4 relative to the handle 35. The rotation of the handle 35 will drive the gear component 34 to rotate, thereby driving the gear condition 32 to move. The movement of the gear condition 32 will cause the second seat 2 to move away from the first seat 1 or closer to the first seat 1. To completely separate seat 1 from seat 2, locking block 4 needs to be pressed against second limiting member 334. When it is necessary to mate the first seat 1 with the second seat 2, but the first elastic terminal 11 and the second elastic terminal 12 have not yet been mated with the mating group 21, the locking block 4 needs to be inserted into the second locking groove 352. When the base 1 is to be in the second position, that is, when the second elastic terminal 12 is to abut against the docking group 21 alone, the locking block 4 needs to be inserted into the first locking groove 351. When the base 1 is to be in the first position so that the first elastic terminal 11 and the second elastic terminal 12 are both in contact with the mating group 21, the handle 35 needs to be snapped into the snapping area 36.

[0040] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A medium-voltage interlock connector, characterized in that: The device includes a seat body 1 (1) and a seat body 2 (2) that can move towards each other. The seat body 1 (1) is provided with a first elastic terminal (11) and a second elastic terminal (12). The seat body 2 (2) is provided with a docking group (21). The distance between the first elastic terminal (11) and the docking group (21) is greater than the distance between the second elastic terminal (12) and the docking group (21). When both the first elastic terminal (11) and the second elastic terminal (12) abut against the docking group (21), the seat body 1 (1) has a first position relative to the seat body 2 (2). When the second elastic terminal (12) abuts against the docking group (21) alone, the seat body 1 (1) has a second position relative to the seat body 2 (2). The seat body 1 (1) and the seat body 2 (2) are connected to a driving mechanism (3). The driving mechanism (3) enables the seat body 1 (1) to be in the first position or the second position.

2. The medium-voltage interlock connector according to claim 1, characterized in that: The drive mechanism (3) includes a mounting frame (31), the second seat (2) is slidably connected to the mounting frame (31), the first seat (1) moves in a first direction, and the second seat (2) can slide on the mounting frame (31) along the first direction; the second seat (2) is also slidably connected to a toothed condition (32), the first seat (1) is connected to a mounting shell (33), the mounting shell (33) is rotatably connected to a gear (34) meshing with the toothed condition (32), the toothed condition (32) is slidably connected to the second seat (2), and the rotation of the gear (34) can drive the toothed condition (32) to move, thereby driving the first seat (1) and the second seat (2) to move towards each other / away from each other through the sliding connection between the toothed condition (32) and the second seat (2).

3. The medium-voltage interlock connector according to claim 2, characterized in that: The second seat (2) has a sliding post (23), and the tooth condition (32) includes a snap-fit ​​groove (321). The sliding post (23) is slidably connected to the snap-fit ​​groove (321). The moving direction of the tooth condition (32) is a second direction. The mounting frame (31) has a first end (313) and a second end (314) opposite to each other in the second direction. The snap-fit ​​groove (321) is inclined towards the first seat (1) from the first end (313) to the second end (314).

4. The medium-voltage interlock connector according to claim 3, characterized in that: The snap-fit ​​groove (321) is provided in multiple ways, and the multiple snap-fit ​​grooves (321) are evenly arranged along the direction from the first end (313) to the second end (314).

5. The medium-voltage interlock connector according to claim 2, characterized in that: The gear component (34) has a handle (35) for driving the gear component (34) to rotate. The mounting housing (33) also has a first limiting member (333) and a second limiting member (334). The first limiting member (333) and the second limiting member (334) are located on both sides of the handle (35) to limit the movement stroke of the handle (35).

6. The medium-voltage interlock connector according to claim 5, characterized in that: The handle (35) is deformable and includes a plurality of locking slots distributed on the handle (35) along the rotation direction of the handle (35). The mounting housing (33) has a locking block (4) for engaging the locking slot.

7. The medium-voltage interlock connector according to claim 6, characterized in that: The locking slot is provided in two parts, namely a first locking slot (351) and a second locking slot (352), and a locking area (36) is formed between the first limiting member (333) and the locking block (4) to lock the handle (35). When the handle (35) is engaged in the engagement area (36), the first seat (1) is in the first position; when the locking block (4) is engaged in the first locking groove (351), the first seat (1) is in the second position; when the locking block (4) is engaged in the second locking groove (352), the first elastic terminal (11) and the second elastic terminal (12) are both separated from the docking group (21); when the locking block (4) abuts against the second limiting member (334), the first seat (1) is separated from the second seat (2).

8. The medium-voltage interlock connector according to claim 5, characterized in that: The mounting shell (33) has a vertical abutment groove (331) and a horizontal abutment block (332), and the mounting frame (31) has a vertical abutment block (311) and a horizontal abutment groove (312). The vertical abutment block (311) is engaged with the vertical abutment groove (331), and the horizontal abutment block (332) is engaged with the horizontal abutment groove (312).

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