A wiring terminal structure for a power distribution cabinet

By designing a controllable connecting and disconnected terminal structure, the problem of burning or damage of terminals due to excessive current is solved, safety and convenience are achieved, and automatic disconnection and heat dissipation functions are provided.

CN118676633BActive Publication Date: 2025-08-22TIANJIN DEGEN ELECTRIC DRIVE TECH
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Patent Information

Application Number
CN202410807064.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-06-21
Publication Date
2025-08-22
Estimated Expiration
2044-06-21

AI Technical Summary

Technical Problem

When using existing terminals, the two sets of wires are always connected after being fixed, which is prone to burn or damage due to abnormal lines or excessive current, and may cause fire in severe cases.

Method used

A terminal structure is designed, including a mounting base, a connecting cover, a middle block and a conductive plate. Through the coordination of the connecting plate and the elastic contact plate, the controllable communication and disconnection of the conductors is achieved. Combined with a thermal induction mechanism and a limiting mechanism, the line connection is automatically disconnected to prevent overheating, and a heat dissipation mechanism is equipped to reduce the temperature.

Benefits of technology

It realizes automatic disconnection of the line when the current is too high, avoid burnout or damage, reduces fire risk, and is convenient to install and replace, environmentally friendly and energy-saving.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a terminal block structure for a power distribution cabinet, which relates to the field of terminal blocks and includes a mounting base, a connection cover, a middle block, and a conductive sheet. The connection cover is fixed above the mounting base and is symmetrically arranged about the center line of the mounting base. The middle block is provided on the inner side of the connection cover, and two groups of connection covers are connected through the middle block. A conductive sheet is fixed to the bottom of the connection cover, and the inner end of the conductive sheet is located inside the middle block. The conductive sheets on the left and right sides are arranged in a disconnected state inside the middle block. A pressing plate is provided inside the connection cover, and the pressing plate is located above the conductive sheet. The terminal block structure for a power distribution cabinet connects the ends of the wires in the two connection covers through a connecting plate, and the connecting plate is movable. The connection of the wires can be disconnected by releasing the connection between the connecting plate and the conductive sheet, thereby avoiding the occurrence of subsequent risks and making it safer to use.
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Description

Technical Field

[0001] The present invention relates to the technical field of wiring terminals, in particular to a wiring terminal structure for a power distribution cabinet. Background Art

[0002] When connecting and arranging the internal wiring harness of the distribution cabinet, the wires on different lines can be connected through the terminal blocks to form a passage. When the wires are connected through the terminal blocks, they can be disassembled later, and the connection is flexible. It is also a commonly used wiring component. The application number is CN202021874406.X, a distribution cabinet terminal structure disclosed on August 10, 2021, includes a U-shaped block, a pressing block movably connected to the U-shaped block, and a clamping block fixedly connected to the bottom of the pressing block. An elastic limiting plate is provided at the bottom of the clamping block. During specific operation, after positioning the cable in the U-shaped block, press the pressing block. At this time, when the clamping block moves downward, the triangular bar engages in the teeth and is subjected to downward pressure. It can be clamped at different positions. In this way, the operation can be adjusted according to the size of the wiring cable. The invention relates to a terminal block structure for a power distribution cabinet, wherein the terminal block is provided with a terminal block and a plurality of terminals are provided on the side of the power distribution cabinet, wherein the terminal block has a plurality of terminals connected to the power distribution cabinet. The terminal block has a plurality of terminals connected to the power distribution cabinet, wherein the terminal block has a plurality of terminals connected to the power distribution cabinet. The terminal block has a plurality of terminals connected to the power distribution cabinet, wherein the terminal block has a plurality of terminals connected to the power distribution cabinet. The terminal block has a plurality of terminals connected to the power distribution cabinet, wherein the terminal block has a plurality of terminals connected to the power distribution cabinet.

[0003] When using current terminal blocks, two sets of wires are generally connected to the two interfaces of the terminal and fixed, and then the connection of the wires is completed. When in use, the terminal remains connected at all times. When the line is abnormal or the current is too large, it is easy to cause the terminal to burn or be damaged, and in severe cases, it may cause a fire. In the event of continuous high temperature, the terminal cannot control the connection of the wires. Summary of the Invention

[0004] The object of the present invention is to provide a terminal block structure for a power distribution cabinet to solve the problem raised in the above-mentioned background technology that the current terminal blocks, when in use, generally connect two groups of wires to the two interfaces of the terminal respectively and fix them, and then the connection of the wires can be completed. When in use, the terminals are always kept in a connected state. When an abnormality occurs in the line or the current is too large, it is easy to cause the terminals to burn or be damaged, and in serious cases, it may cause a fire.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A terminal block structure for a power distribution cabinet comprises a mounting base, a connection cover, a middle block and a conductive sheet, wherein the connection cover is fixed above the mounting base and is arranged symmetrically about the center line of the mounting base, and a middle block is provided on the inner side of the connection cover, through which two groups of connection covers are connected, a conductive sheet is fixed to the bottom of the connection cover, the inner end of the conductive sheet is located inside the middle block, and the conductive sheets on the left and right sides are arranged in a disconnected shape inside the middle block, a pressing plate is provided inside the connection cover, and the pressing plate is located above the conductive sheet, the connecting wire is pressed above the conductive sheet for fixing, and a lower portion is provided above the pressing plate The pressure control mechanism controls the movement of the pressing plate. A connecting plate is provided inside the middle block, and the connecting plate is located above the conductive plate. The two groups of conductive plates are connected through the connecting plate. A first spring is connected above the connecting plate, and the first spring is in a stretched state to provide an upward pulling force for the connecting plate. A movable block is fixed above the connecting plate, and the movable block passes through the top of the middle block and between the middle blocks to form an up and down sliding structure. A limiting mechanism is provided inside the middle block to limit the movement of the movable block within the middle block, and a heat sensing mechanism is provided inside the movable block to control the limiting effect of the limiting mechanism through the heat sensing mechanism.

[0007] To further optimize the technical solution, an elastic contact piece is fixed to the inner end of the conductive piece, and the elastic contact piece is arranged in an upward shape.

[0008] Further optimizing the technical solution, the limiting mechanism includes a limiting block, a second spring and a limiting groove;

[0009] The limiting block is arranged inside the middle block and between the middle blocks to form a telescopic structure;

[0010] A second spring is fixed to the outer end of the limit block to provide thrust for the limit block;

[0011] The limiting groove is arranged inside the movable block, and a concave-convex matching structure is formed between the limiting groove and the limiting block. The connection between the connecting plate and the conducting piece is maintained through the connection between the limiting block and the limiting groove.

[0012] Further optimizing the technical solution, the thermal induction mechanism includes a release plate, a third spring, a first magnet, a second magnet and a control rope;

[0013] A release plate is arranged inside the limiting groove and forms a sliding connection between the limiting grooves;

[0014] a third spring, fixed to the inner end of the release plate to provide an outward thrust for the release plate;

[0015] A first magnet is disposed inside the movable block, and the first magnet is connected to the connecting plate;

[0016] The second magnet is arranged above the first magnet, and the second magnet and the first magnet are arranged with opposite poles, and an up-and-down sliding structure is formed between the second magnet and the movable block;

[0017] The control rope is fixed above the second magnet, and the upper part of the control rope is connected to the release plate.

[0018] To further optimize the technical solution, the elastic force of the third spring is greater than the elastic force of the second spring, a heat insulation plate is fixed above the connecting plate, and the heat insulation plate is located between the connecting plate and the first spring.

[0019] To further optimize the technical solution, a heat dissipation mechanism is provided above the connecting plate to dissipate heat from the disconnected connecting plate.

[0020] Further optimizing the technical solution, the heat dissipation mechanism includes a conduction block, a heat conduction plate and a heat dissipation plate;

[0021] A conductive block is fixed above the connecting plate;

[0022] A heat conducting plate is fixed inside the middle block and is located above the conducting block;

[0023] The heat dissipation plate is fixed above the heat conducting plate, and the heat dissipation plate is located above the middle block.

[0024] Further optimizing the technical solution, the downward pressure control mechanism includes a fourth spring, a pressing plate, a first connecting shaft, a movable seat and a second connecting shaft;

[0025] A fourth spring is fixed above the pressing plate to provide downward thrust for the pressing plate;

[0026] A pressing plate, arranged above the pressing plate;

[0027] A first connecting shaft is provided on the outside of the pressing plate, and the pressing plate is rotatably connected to the connecting cover via the first connecting shaft;

[0028] A movable seat is arranged above the pressing plate and forms a sliding connection between the pressing plates;

[0029] The second connecting shaft is arranged below the pressing plate, and the pressing plate is rotatably connected to the movable seat via the second connecting shaft.

[0030] To further optimize the technical solution, a docking mechanism is provided on the outer side of the mounting seat, and adjacent mounting seats are connected to each other through the docking mechanism.

[0031] Further optimizing the technical solution, the docking mechanism includes a docking block, a docking groove, a blocking groove, a stopper and a fifth spring;

[0032] a docking block, fixed to the rear side of the mounting base;

[0033] The docking groove is provided on the front side of the mounting seat, and a concave-convex matching structure is formed between the docking groove and the docking block;

[0034] The blocking groove is provided inside the docking groove, and the lower part of the docking groove and the lower part of the blocking groove are both opened;

[0035] A stopper is arranged inside the docking block, and the rear side of the stopper is arranged in an inclined shape, and a sliding connection is formed between the stopper and the docking block;

[0036] The fifth spring is fixed to the inner end of the stopper to provide an outward thrust for the stopper.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] (1) The ends of the wires in the two connection covers are connected by a connecting plate, and the connecting plate is movable. The connection of the wires can be disconnected by releasing the connection between the connecting plate and the conductive sheet, thereby avoiding the occurrence of subsequent risks and making it safer to use;

[0039] (2) The elastic force of the elastic contact piece can be set to keep it in close contact with the connecting plate, ensuring the stability of conduction during connection. The connecting plate can then move upward under the elastic force of the first spring to release the connection. The terminal with the problem can also be directly found by observing the extension of the movable block.

[0040] (3) The temperature of the connecting plate can reduce the magnetic force of the first magnet and the second magnet, thereby weakening their attraction, so that the release plate can push the limit block out under the action of the third spring, thereby releasing the limit effect on the movable block and allowing the movable block to move automatically;

[0041] (4) The position of the pressing plate can be controlled by pressing the pressing plate. After releasing the pressing plate, the pressing plate can move automatically, pressing the wire on the conductive plate to limit the position. There is no need to rotate the bolt, which makes the installation and connection of the wire more convenient.

[0042] (5) The docking mechanism enables the mounting base to be spliced ​​and combined, so that the number of terminals used can be adjusted according to the needs of use, and a single terminal can be replaced individually after it is damaged, which is more environmentally friendly and energy-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0044] Figure 2 This is a schematic diagram of the structure of the present invention when viewed from above;

[0045] Figure 3 This is a schematic diagram of the side structure of the mounting base of the present invention;

[0046] Figure 4 This is a schematic diagram of the main cross-sectional structure of the connection cover of the present invention;

[0047] Figure 5 This is a schematic diagram of the main cross-sectional structure of the middle block of this launch;

[0048] Figure 6 This is a schematic diagram of the side cross-sectional structure of the middle block of the present invention;

[0049] Figure 7 This is a schematic diagram of the side sectional structure of the movable block of the present invention;

[0050] Figure 8 This is a schematic diagram of the movement of the movable block of the present invention;

[0051] Figure 9 This is a schematic diagram of the side cross-sectional structure of the connection cover of the present invention;

[0052] Figure 10 This is a schematic diagram of the top-sectional structure of the mounting base of the present invention.

[0053] In the figure: 1. Mounting seat; 2. Connecting cover; 3. Middle block; 4. Conducting plate; 5. Pressing plate; 6. Elastic contact piece; 7. Connecting plate; 8. Movable block; 9. First spring; 10. Heat insulation plate; 11. Conducting block; 12. Heat conducting plate; 13. Heat dissipation plate; 14. Limiting block; 15. Second spring; 16. Limiting groove; 17. Release plate; 18. Third spring; 19. First magnet; 20. Second magnet; 21. Control rope; 22. Fourth spring; 23. Pressing plate; 24. First connecting shaft; 25. Movable seat; 26. Second connecting shaft; 27. Docking block; 28. Docking groove; 29. ​​Blocking groove; 30. Block; 31. Fifth spring. DETAILED DESCRIPTION

[0054] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0055] See also Figures 1-10 The present invention provides the following technical solution: a terminal block structure for a power distribution cabinet, comprising a mounting base 1, a connection cover 2, a middle block 3, and a conductive sheet 4. The connection cover 2 is fixed above the mounting base 1 and is arranged symmetrically about the center line of the mounting base 1. The middle block 3 is provided on the inner side of the connection cover 2, and two groups of connection covers 2 are connected through the middle block 3. The conductive sheet 4 is fixed to the bottom of the connection cover 2.

[0056] Example 1:

[0057] The invention provides a technical solution, which discloses that the inner end of the conductive sheet 4 is located inside the middle block 3, and the conductive sheets 4 on the left and right sides are arranged in a disconnected shape inside the middle block 3. A pressing plate 5 is provided inside the connection cover 2, and the pressing plate 5 is located above the conductive sheet 4. The connecting wire is pressed above the conductive sheet 4 to be fixed. A downward pressure control mechanism is provided above the pressing plate 5 to control the movement of the pressing plate 5. A connecting plate 7 is provided inside the middle block 3, and the connecting plate 7 is located above the conductive sheet 4. The two groups of conductive sheets 4 are connected through the connecting plate 7. A first spring 9 is connected to the top of the connecting plate 7, and the first spring 9 is in a stretched state, providing an upward pulling force for the connecting plate 7. A movable block 8 is fixed above the connecting plate 7, and the movable block 8 passes through the top of the middle block 3 and between the middle block 3 to form an up and down sliding structure. A limiting mechanism is provided inside the middle block 3 to limit the movement of the movable block 8 inside the middle block 3, and a heat sensing mechanism is provided inside the movable block 8 to control the limiting effect of the limiting mechanism through the heat sensing mechanism. An elastic contact piece 6 is fixed to the inner end of the conductive piece 4, and the elastic contact piece 6 is arranged in an upward shape;

[0058] When in use, the mounting base 1 can be installed at the use position of the distribution cabinet, and then the wires to be connected can be inserted into the connection covers 2 on the left and right sides respectively, and they can be limited by the pressing plate 5 so that they remain connected to the conductive sheet 4. The inner end of the conductive sheet 4 is kept connected through the connection between the elastic contact piece 6 and the connecting plate 7 to form a passage. When the current is too large and high temperature occurs during use, the first spring 9 can drive the connecting plate 7 to move upward, releasing the connection between the connecting plate 7 and the elastic contact piece 6, thereby disconnecting the line and avoiding further losses caused by continued heating.

[0059] Example 2:

[0060] On the basis of embodiment 1, the limit mechanism is disclosed, which includes a limit block 14, a second spring 15 and a limit groove 16. The limit block 14 is arranged inside the middle block 3 and between the middle block 3 to form a telescopic structure. The second spring 15 is fixed to the outer end of the limit block 14 to provide thrust for the limit block 14. The limit groove 16 is opened inside the movable block 8, and a concave-convex matching structure is formed between the limit groove 16 and the limit block 14. The connection between the connecting plate 7 and the conducting plate 4 is maintained by the connection between the limit block 14 and the limit groove 16. The thermal sensing mechanism includes a release plate 17, a third spring 18, a first magnet 19, a second magnet 20 and a control rope 21. The release plate 17 is arranged inside the limit groove 16 and between the limit groove 16 to form a sliding connection. The third spring 18 is fixed to the inner end of the release plate 17 to provide an external thrust for the release plate 17. The first magnet 19 is arranged inside the movable block 8, and the first magnet 19 is connected to the connecting plate 7. The second magnet 20 is arranged above the first magnet 19, and the second magnet 20 and the first magnet 19 are arranged with opposite poles relative to each other, and an up and down sliding structure is formed between the second magnet 20 and the movable block 8. The control rope 21 is fixed above the second magnet 20, and the upper part of the control rope 21 is connected to the release plate 17. The elastic force of the third spring 18 is greater than the elastic force of the second spring 15. A heat insulation plate 10 is fixed above the connecting plate 7, and the heat insulation plate 10 is located between the connecting plate 7 and the first spring 9. A heat dissipation mechanism is provided above the connecting plate 7 to dissipate heat from the disconnected connecting plate 7. The heat dissipation mechanism includes a conduction block 11, a heat conducting plate 12 and a heat dissipation plate 13. The conduction block 11 is fixed above the connecting plate 7. The heat conducting plate 12 is fixed inside the middle block 3, and the heat conducting plate 12 is located above the conduction block 11. The heat dissipation plate 13 is fixed above the heat conducting plate 12, and the heat dissipation plate 13 is located above the middle block 3.

[0061] When the connecting plate 7 and the elastic contact piece 6 are connected, the limit block 14 and the limit slot 16 are connected to limit the movable block 8. When the current increases and the temperature of the connecting plate 7 rises, the high temperature will cause the magnetic force of the first magnet 19 to weaken. At this time, the attraction of the first magnet 19 to the second magnet 20 is weakened. At this time, the second magnet 20 will move upward under the action of the control rope 21, and the third spring 18 pushes the release plate 17 to move, so that the release plate 17 pushes the limit block 14 to move, and the limit block 14 is pushed out of the limit slot 16, releasing the limit block. 14 has a limiting effect on the movable block 8. At this time, the first spring 9 will drive the connecting plate 7 to move upward, disconnect the circuit, and avoid the risk of expansion. After the connecting plate 7 moves upward, the heat conducting plate 12 and the conduction block 11 fit together, and the heat will be transferred to the heat dissipation plate 13 to dissipate the heat on the connecting plate 7, thereby restoring the magnetism of the first magnet 19. After the subsequent maintenance is completed, press the movable block 8 to control the connecting plate 7 to move downward to connect the circuit again. At the same time, the limiting block 14 and the limiting slot 16 are engaged again so that it can continue to be used.

[0062] Example 3:

[0063] On the basis of embodiment 1, a downward pressure control mechanism is disclosed, which includes a fourth spring 22, a pressing plate 23, a first connecting shaft 24, a movable seat 25 and a second connecting shaft 26. The fourth spring 22 is fixed above the pressing plate 5 to provide a downward thrust for the pressing plate 5. The pressing plate 23 is arranged above the pressing plate 5. The first connecting shaft 24 is arranged on the outside of the pressing plate 23, and the pressing plate 23 is rotated through the first connecting shaft 24 and the connecting cover 2 to form a sliding connection. The movable seat 25 is arranged above the pressing plate 5 and between the pressing plate 5 to form a sliding connection. The second connecting shaft 26 is arranged below the pressing plate 23, and the pressing plate 23 is rotated through the second connecting shaft 26 and the movable seat 25 to form a sliding connection. The outside of the mounting seat 1 is provided with a pair of Connecting mechanism, adjacent mounting seats 1 are connected to each other through a docking mechanism, and the docking mechanism includes a docking block 27, a docking groove 28, a blocking groove 29, a stopper 30 and a fifth spring 31. The docking block 27 is fixed to the rear side of the mounting seat 1, and the docking groove 28 is opened on the front side of the mounting seat 1, and a concave-convex matching structure is formed between the docking groove 28 and the docking block 27. The blocking groove 29 is opened inside the docking groove 28, and the bottom of the docking groove 28 and the bottom of the blocking groove 29 are both open-shaped. The stopper 30 is arranged inside the docking block 27, and the rear side of the stopper 30 is inclined, and a sliding connection is formed between the stopper 30 and the docking block 27. The fifth spring 31 is fixed to the inner end of the stopper 30 to provide an outward thrust for the stopper 30;

[0064] When the wire is installed in the connecting cover 2, the pressing plate 23 can be pressed to rotate it through the first connecting shaft 24, and at the same time, the second connecting shaft 26 and the movable seat 25 can be used to pull the pressing plate 5 upward, compressing the fourth spring 22, and then the wire can be swung between the pressing plate 5 and the conductive sheet 4, and the pressing plate 23 can be released. The fourth spring 22 pushes the pressing plate 5 down to fix the wire. The mounting seat 1 can also be spliced ​​and combined according to the needs of use. When splicing, the adjacent mounting seats 1 can be inserted into the docking groove 28 through the docking block 27, and positioned by the connection between the stop block 30 and the blocking groove 29 to realize the connection of the mounting seat 1. When disassembling a single mounting seat 1 later, it can be pulled up by vertical movement, and the stop block 30 can be pulled out from the blocking groove 29. At the same time, the docking block 27 is disconnected from the docking groove 28, which is more flexible and changeable to use.

[0065] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0066] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A terminal block structure for a power distribution cabinet, comprising a mounting base (1), a connection cover (2), a middle block (3) and a conductive sheet (4), wherein the connection cover (2) is fixed above the mounting base (1), and the connection cover (2) is arranged symmetrically about the center line of the mounting base (1), and the middle block (3) is arranged on the inner side of the connection cover (2), and two groups of connection covers (2) are connected through the middle block (3), and the conductive sheet (4) is fixed to the bottom of the connection cover (2); Its characteristics are: The inner end of the conductive sheet (4) is located inside the middle block (3), and the conductive sheets (4) on the left and right sides are arranged in a disconnected state inside the middle block (3). A pressing plate (5) is provided inside the connection cover (2), and the pressing plate (5) is located above the conductive sheet (4). The connecting wire is pressed above the conductive sheet (4) to be fixed. A downward pressure control mechanism is provided above the pressing plate (5) to control the movement of the pressing plate (5). A connecting plate (7) is provided inside the middle block (3), and the connecting plate (7) is located above the conductive sheet (4). The two groups are connected through the connecting plate (7). The conductive plate (4) is connected, a first spring (9) is connected above the connecting plate (7), and the first spring (9) is in a stretched state, providing an upward pulling force for the connecting plate (7), a movable block (8) is fixed above the connecting plate (7), and the movable block (8) passes through the upper part of the middle block (3) and between the middle block (3) to form an up and down sliding structure, a limiting mechanism is provided inside the middle block (3) to limit the movement of the movable block (8) in the middle block (3), and a heat sensing mechanism is provided inside the movable block (8) to control the limiting effect of the limiting mechanism through the heat sensing mechanism; The limiting mechanism comprises a limiting block (14), a second spring (15) and a limiting groove (16); A limit block (14) is arranged inside the middle block (3) and between the middle blocks (3) to form a telescopic structure; A second spring (15) is fixed to the outer end of the limit block (14) to provide thrust for the limit block (14); The limiting groove (16) is provided inside the movable block (8), and a concave-convex matching structure is formed between the limiting groove (16) and the limiting block (14), and the connection between the connecting plate (7) and the conducting plate (4) is maintained through the connection between the limiting block (14) and the limiting groove (16); The thermal induction mechanism includes a release plate (17), a third spring (18), a first magnet (19), a second magnet (20) and a control rope (21); A release plate (17) is arranged inside the limiting groove (16) and is in sliding connection with the limiting groove (16); A third spring (18) is fixed to the inner end of the release plate (17) to provide an outward thrust for the release plate (17); A first magnet (19) is disposed inside the movable block (8), and the first magnet (19) is connected to the connecting plate (7); The second magnet (20) is arranged above the first magnet (19), and the second magnet (20) and the first magnet (19) are arranged with opposite magnetic poles, and an up-and-down sliding structure is formed between the second magnet (20) and the movable block (8); The control rope (21) is fixed above the second magnet (20), and the upper part of the control rope (21) is connected to the release plate (17).

2. The terminal structure for a power distribution cabinet according to claim 1, characterized in that: An elastic contact piece (6) is fixed to the inner end of the conductive piece (4), and the elastic contact piece (6) is arranged in an upward-curving shape.

3. The terminal block structure for a power distribution cabinet according to claim 1, characterized in that: The elastic force of the third spring (18) is greater than the elastic force of the second spring (15), a heat insulation plate (10) is fixed above the connecting plate (7), and the heat insulation plate (10) is located between the connecting plate (7) and the first spring (9).

4. The terminal block structure for a power distribution cabinet according to claim 1, wherein: A heat dissipation mechanism is provided above the connecting plate (7) to dissipate heat from the disconnected connecting plate (7).

5. The terminal structure for a power distribution cabinet according to claim 4, characterized in that: The heat dissipation mechanism comprises a conduction block (11), a heat conduction plate (12) and a heat dissipation plate (13); A conductive block (11) is fixed above the connecting plate (7); A heat conducting plate (12) is fixed inside the middle block (3), and the heat conducting plate (12) is located above the conducting block (11); The heat dissipation plate (13) is fixed above the heat conducting plate (12), and the heat dissipation plate (13) is located above the middle block (3).

6. The terminal structure for a power distribution cabinet according to claim 1, characterized in that: The downward pressure control mechanism comprises a fourth spring (22), a pressing plate (23), a first connecting shaft (24), a movable seat (25) and a second connecting shaft (26); A fourth spring (22) is fixed above the pressing plate (5) to provide a downward thrust for the pressing plate (5); A pressing plate (23) is arranged above the pressing plate (5); A first connecting shaft (24) is arranged outside the pressing plate (23), and the pressing plate (23) is rotatably connected to the connecting cover (2) via the first connecting shaft (24); A movable seat (25) is arranged above the pressing plate (5) and forms a sliding connection between the pressing plate (5); The second connecting shaft (26) is arranged below the pressing plate (23), and the pressing plate (23) is rotatably connected to the movable seat (25) via the second connecting shaft (26).

7. The terminal structure for a power distribution cabinet according to claim 1, characterized in that: A docking mechanism is provided on the outer side of the mounting seat (1), and adjacent mounting seats (1) are connected to each other via the docking mechanism.

8. The terminal structure for a power distribution cabinet according to claim 7, characterized in that: The docking mechanism comprises a docking block (27), a docking groove (28), a blocking groove (29), a blocking block (30) and a fifth spring (31); A docking block (27) fixed to the rear side of the mounting base (1); A docking groove (28) is provided on the front side of the mounting seat (1), and a concave-convex matching structure is formed between the docking groove (28) and the docking block (27); The blocking groove (29) is provided inside the docking groove (28), and the lower part of the docking groove (28) and the lower part of the blocking groove (29) are both opened; A stopper (30) is arranged inside the docking block (27), and the rear side of the stopper (30) is arranged in an inclined shape, and a sliding connection is formed between the stopper (30) and the docking block (27); The fifth spring (31) is fixed to the inner end of the stopper (30) to provide an outward thrust for the stopper (30).

Citation Information

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