A medium voltage switchgear with automatic closing and locking of the cabinet door and a method of use thereof

Abstract

The application discloses a medium-voltage switch cabinet with automatic closing and locking of a cabinet door and a use method thereof, which comprises a cabinet body, two groups of baffles arranged on the cabinet body, and a cabinet door with elastic reset arranged on the cabinet body; two groups of sliding grooves are symmetrically arranged on the cabinet door and matched with the two groups of baffles in position; a sliding block is arranged in the sliding groove; a moving block with reciprocal displacement is arranged on the baffle; a connecting rope is arranged between the sliding block and the moving block; the displacement of the moving block drives the connecting rope to be taut, thereby driving the cabinet door to be closed on the cabinet body; the cabinet door can be effectively displaced by the displacement of the sliding block driven by the moving block, so that the cabinet door is attached to the surface of the cabinet body, and the cabinet body can be kept in a sealed state.

Description

Technical Field

[0001] This invention relates to a medium-voltage switchgear with automatic door closing and locking, and its usage method. Background Technology

[0002] Medium-voltage switchgear is a metal-enclosed switchgear that provides excellent insulation to other equipment besides the switch itself, preventing electric arcing and ensuring safe power supply. Medium-voltage switchgear consists of two main parts: the cabinet and the circuit breaker. The circuit breaker is the core component of the medium-voltage switchgear; it is used to disconnect or connect circuits.

[0003] In the prior art, the cabinet doors of medium-voltage switchgear cannot be automatically locked. When the cabinet door is opened and forgotten to be closed, the open cabinet can easily cause electric shock accidents, resulting in low safety performance. Moreover, external dust can enter the cabinet, affecting the service life of the electrical components inside. In view of this, the present invention proposes a medium-voltage switchgear with automatic door closing and locking and its usage method to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a medium-voltage switchgear with automatic door closing and locking and its usage method, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A medium-voltage switchgear with automatic door closing and locking includes a cabinet body, two sets of baffles are provided on the cabinet body, the two sets of baffles are symmetrically arranged on the cabinet body, and a cabinet door with elastic reset is provided on the cabinet body. The cabinet door is symmetrically provided with two sets of sliding grooves, which are matched with two sets of baffles. A slider is provided in the sliding groove, and a moving block that moves back and forth is provided on the baffle. A connecting rope is provided between the slider and the moving block. The displacement of the moving block causes the connecting rope to tighten, driving the cabinet door to close on the cabinet body.

[0006] As an improvement to the above technical solution, a movable cavity is provided inside the baffle, and a movable through groove is also provided on the baffle, the movable through groove and the movable cavity penetrating into the movable cavity; A screw is rotatably disposed in the movable cavity, a threaded sleeve is disposed on the movable block, the movable block is slidably disposed in a movable through groove, and the threaded sleeve is threadedly sleeved on the outer wall of the screw.

[0007] As an improvement to the above technical solution, the side wall of the cabinet is provided with two sets of servo motors. The two sets of servo motors are respectively connected to two sets of screw drives. The two sets of servo motors rotate simultaneously in the same direction, driving the two sets of screws to rotate.

[0008] As an improvement to the above technical solution, the servo motor is equipped with a remote control module for remotely controlling the operation of the servo motor, and the servo motor is also equipped with a timed start module for timed control of the servo motor to start.

[0009] As an improvement to the above technical solution, the length of the sliding groove is less than the length of the movable through groove, and the length of the movable through groove is the same as that of the screw.

[0010] As an improvement to the above technical solution, two sets of mounting plates are symmetrically arranged on the side wall of the cabinet, and a mounting rod is arranged between the two sets of mounting plates; The cabinet door has a mounting sleeve on its side wall, which is rotatably fitted onto the outer wall of the mounting rod.

[0011] As an improvement to the above technical solution, a mounting post is fixedly provided at the center of the mounting rod, and two sets of torsion springs are provided inside the mounting sleeve. The two sets of torsion springs are respectively connected to the two ends of the mounting post, and the torsion springs are also connected to the inner sidewall of the mounting sleeve.

[0012] A method for using a medium-voltage switchgear with automatic door closing and locking includes the following steps: S1. Mobile Installation: Place the movable block in the movable through slot, and make the threaded sleeve fit on the outer wall of the screw, and make the slider in the slide groove, and adjust the slider until the slider can slide in the slide groove; S2, Displacement Test: The servo motor drives the screw to rotate, and through the threaded engagement between the screw and the threaded sleeve, the moving block is driven to slide in the moving through groove for testing. If it cannot slide normally, the moving block is adjusted until it can slide in the moving through groove. S3, Connection Limit: Move the slider and the moving block to the end away from the servo motor, and at the same time rotate the cabinet door around the mounting rod axis until the torsion spring returns to its original position and the cabinet door is in the open position with respect to the cabinet body. Then connect the connecting rope between the slider and the moving block. S4, Lockout Test: Repeat S2 and displacement test to make the screw rotate and drive the moving block to move towards the servo motor until the moving block moves close to the servo motor along the screw axis. This causes the slider to move in the groove through the connecting rope. When the slider does not move, the moving block continues to move, causing the cabinet door to rotate around the mounting rod axis. The torsion spring rotates and deforms. When the moving block moves to the end of the screw, the cabinet door fits against the cabinet body. S5, Open Test: After the S4 and locking tests are completed, the servo motor rotates in the opposite direction, driving the moving block to move away from the servo motor until the moving block moves away from the servo motor along the screw axis. The deformed torsion spring then resets and drives the cabinet door to rotate, thus opening the cabinet door. S6, Lock Off: After completing the S5 test and opening test, repeat the S4 test and locking test until the cabinet door fits snugly against the cabinet body.

[0013] As an improvement to the above technical solution, in S1, during the mobile installation, sliders are installed in both sets of sliding grooves simultaneously, and moving blocks are installed in both sets of moving through grooves simultaneously.

[0014] As an improvement to the above technical solution, after S6 and locking the door is completed, if it is necessary to accelerate heat dissipation inside the cabinet, repeat the two sets of steps S4, locking test, and S5, opening test, so that the cabinet door is constantly opened and closed, disturbing the air inside the cabinet.

[0015] Compared with the prior art, the beneficial effects of the present invention are: When the cabinet door is locked, the moving block moves on the baffle, which in turn moves the slider through the connecting rope. When the slider does not move on the slide, the moving block continues to move, which in turn moves the cabinet door to fit against the cabinet body through the connecting rope. Of course, when the cabinet door needs to be opened, the cabinet door can be opened when the moving block moves to the initial position because the cabinet door has an elastic reset function. The movable block described above drives the slider to move, which can effectively move the cabinet door, so that the cabinet door fits against the surface of the cabinet, making it easier for the cabinet to maintain a sealed state. With the cabinet door having the elastic reset function set above, after the moving block moves toward the initial position, it can drive the cabinet door to reset, making it easy to open the cabinet door. Moreover, during the later maintenance process, it can also prevent the cabinet door from closing and affecting the maintenance progress. The cabinet door with the elastic reset function described above can be freely switched between closed and open. When there is a lot of heat remaining in the cabinet, the constantly closing cabinet door can disturb the air in the cabinet, which facilitates rapid heat dissipation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the cabinet structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A; Figure 4 This is a schematic diagram showing the connection between the cabinet door and the cabinet body of the present invention; Figure 5This is a front view of the cabinet of the present invention; Figure 6 For the present invention Figure 5 Sectional view of BB; Figure 7 For the present invention Figure 6 An enlarged view of point C; Figure 8 This is a schematic diagram of the screw structure of the present invention; Figure 9 For the present invention Figure 5 Sectional view of DD; Figure 10 For the present invention Figure 9 A magnified structural diagram at point E in the middle.

[0017] In the diagram: 10. Cabinet body; 11. Mounting plate; 12. Mounting rod; 13. Mounting column; 20. Cabinet door; 21. Slide rail; 22. Slider; 23. Mounting sleeve; 30. Baffle; 31. Moving through groove; 32. Movable cavity; 33. Screw; 40. Servo motor; 50. Connecting rope; 60. Moving block; 61. Threaded sleeve; 70. Torsion spring. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example: like Figure 1-10 As shown, this embodiment proposes a medium-voltage switch cabinet with automatic door closing and locking, including a cabinet body 10, on which two sets of baffles 30 are provided, the two sets of baffles 30 are symmetrically arranged on the cabinet body 10, and a cabinet door 20 with elastic reset is provided on the cabinet body 10. Two sets of sliding grooves 21 are symmetrically arranged on the cabinet door 20. The two sets of sliding grooves 21 are matched with the positions of two sets of baffles 30. A slider 22 is arranged in the sliding groove 21. A moving block 60 that moves back and forth is arranged on the baffle 30. A connecting rope 50 is arranged between the slider 22 and the moving block 60. The displacement of the moving block 60 causes the connecting rope 50 to tighten, driving the cabinet door 20 to close on the cabinet body 10.

[0020] In this embodiment, when the cabinet door 20 is locked, the moving block 60 moves on the baffle 30, thereby driving the slider 22 to move through the connecting rope 50. When the slider 22 does not move on the slide groove 21, the moving block 60 continues to move, driving the cabinet door 20 to fit against the cabinet body 10 through the connecting rope 50. Of course, when the cabinet door 20 needs to be opened, since the cabinet door 20 has an elastic reset function, the cabinet door 20 can be opened when the moving block 60 moves to the initial position. The movable block 60 described above drives the slider 22 to move, which can effectively drive the cabinet door 20 to move, so that the cabinet door 20 fits against the surface of the cabinet 10, making it easy for the cabinet 10 to maintain a sealed state. With the cabinet door 20 having the elastic reset function set above, after the moving block 60 moves toward the initial position, it can drive the cabinet door 20 to reset, making it easy to open the cabinet door 20. Moreover, during the later maintenance process, it can also prevent the cabinet door 20 from closing and affecting the maintenance progress. The cabinet door 20 with the elastic reset function described above can be freely switched between closing and opening. When there is a lot of heat remaining in the cabinet 10, the constantly closing cabinet door 20 can disturb the air in the cabinet 10, which facilitates rapid heat dissipation.

[0021] Specifically, the baffle 30 has a movable cavity 32 inside, and the baffle 30 also has a movable through groove 31, which is inserted into the movable cavity 32. A screw 33 is rotatably disposed in the movable cavity 32, and a threaded sleeve 61 is disposed on the movable block 60. The movable block 60 is slidably disposed in the movable through groove 31, and the threaded sleeve 61 is threadedly sleeved on the outer wall of the screw 33.

[0022] In this embodiment, the cooperation between the screw 33 and the threaded sleeve 61 facilitates the reciprocating motion of the moving block 60, and makes it easy to lock the cabinet door 20.

[0023] Specifically, the side wall of the cabinet 10 is provided with two sets of servo motors 40. The two sets of servo motors 40 are respectively connected to two sets of screws 33. The two sets of servo motors 40 rotate simultaneously in the same direction, driving the two sets of screws 33 to rotate.

[0024] In this embodiment, the two sets of servo motors 40 are controlled and processed centrally.

[0025] Specifically, the servo motor 40 is equipped with a remote control module for remotely controlling the operation of the servo motor 40, and the servo motor 40 is also equipped with a timer start module for timed control of the servo motor 40 to start.

[0026] In this case, the specific function of the remote control module is to connect the micro servo motor 40 to the cloud platform or remote server using a specially designed remote control module or Internet of Things (IoT) device. Through the interface and control commands provided by the cloud platform, the motor can be remotely controlled from anywhere. The specific function of the timed start module is to provide a timed start function and connect to the controller of the servo motor 40. By setting the timing parameters on the module, the servo motor 40 can be started at a set time.

[0027] In this embodiment, the remote control module facilitates remote control of the cabinet doors 20 on multiple cabinets 10, and facilitates remote control of the cabinets 10 for heat dissipation. Of course, by setting a timed start module, after the cabinet door 20 has been open for a while, the servo motor 40 can be started, so that the cabinet door 20 can be automatically locked.

[0028] Specifically, the length of the slide groove 21 is less than the length of the movable through groove 31, and the movable through groove 31 has the same length as the screw 33.

[0029] In this embodiment, since the length of the slide 21 is smaller than the length of the movable through groove 31, when the slider 22 moves to the end point of the slide 21, the slider 22 does not move. However, since the movable block 60 is still moving, it can pull the cabinet door 20 to move through the connecting rope 50 so that the cabinet door 20 can be locked.

[0030] Specifically, two sets of mounting plates 11 are symmetrically arranged on the side wall of the cabinet 10, and a mounting rod 12 is arranged between the two sets of mounting plates 11; The side wall of the cabinet door 20 is provided with an installation sleeve 23, which is rotatably fitted onto the outer wall of the installation rod 12.

[0031] In this embodiment, the cabinet door 20 can be easily opened and closed by the cooperation between the mounting sleeve 23 and the mounting rod 12.

[0032] Specifically, a mounting post 13 is fixedly provided at the center of the mounting rod 12, and two sets of torsion springs 70 are provided inside the mounting sleeve 23. The two sets of torsion springs 70 are respectively connected to the two ends of the mounting post 13, and the torsion springs 70 are also connected to the inner sidewall of the mounting sleeve 23.

[0033] In this embodiment, the torsion spring 70 is in its original state when the cabinet door 20 is opened, and in a deformed state when the cabinet door 20 is closed on the cabinet body 10. When the cabinet door 20 needs to be opened, the torsion spring 70 in the deformed state is reset, which drives the cabinet door 20 to open.

[0034] A method for using a medium-voltage switchgear with automatic door closing and locking includes the following steps: S1. Mobile Installation: Place the movable block 60 in the movable through groove 31, and make the threaded sleeve 61 fit on the outer wall of the screw 33, and make the slider 22 in the slide groove 21, and adjust the slider 22 until the slider 22 can slide in the slide groove 21. S2, Displacement Test: Servo motor 40 drives screw 33 to rotate. Through the threaded engagement between screw 33 and threaded sleeve 61, moving block 60 is driven to slide in moving through groove 31 for testing. If it cannot slide normally, moving block 60 is adjusted until it can slide in moving through groove 31. S3, Connection Limit: Move slider 22 and moving block 60 to the end away from servo motor 40, and at the same time make cabinet door 20 rotate around the axis of mounting rod 12 until torsion spring 70 is reset and cabinet door 20 and cabinet body 10 are in the open state. Then connect rope 50 between slider 22 and moving block 60. S4, Lockout Test: Repeat S2 and displacement test to make the screw 33 rotate, drive the moving block 60 to move towards the servo motor 40 until the moving block 60 moves close to the servo motor 40 along the axis of the screw 33, thereby pulling the slider 22 to move in the slide groove 21 through the connecting rope 50. When the slider 22 does not move, the moving block 60 continues to move, making the cabinet door 20 rotate around the axis of the mounting rod 12, and the torsion spring 70 rotates and deforms. When the moving block 60 moves to the end of the screw 33, the cabinet door 20 fits against the cabinet body 10. S5, Open Test: After the S4 and locking tests are completed, the servo motor 40 rotates in the opposite direction, driving the moving block 60 to move away from the servo motor 40 until the moving block 60 moves away from the servo motor 40 along the axis of the screw 33. The deformed torsion spring 70 resets and drives the cabinet door 20 to rotate, so that the cabinet door 20 opens. S6, Lock Off: After completing the S5 test and opening test, repeat the S4 test and locking test until the cabinet door 20 fits snugly against the cabinet body 10.

[0035] Specifically, in S1, during the movable installation, sliders 22 are installed simultaneously in both sets of sliding grooves 21, and movable blocks 60 are installed simultaneously in both sets of movable through grooves 31.

[0036] In this embodiment, the above steps can improve the fit between the cabinet door 20 and the cabinet body 10.

[0037] Specifically, after S6 and locking are completed, if it is necessary to accelerate heat dissipation inside the cabinet 10, repeat the two sets of steps S4, locking test, and S5, opening test, so that the cabinet door 20 is constantly opened and closed, disturbing the air inside the cabinet 10.

[0038] In this embodiment, the above-described method facilitates heat dissipation inside the cabinet 10.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A medium-voltage switchgear with automatic door closing and locking, characterized in that: Includes a cabinet (10), on which two sets of baffles (30) are provided, the two sets of baffles (30) are symmetrically arranged on the cabinet (10), and the cabinet (10) is provided with a cabinet door (20) that can be elastically reset. Two sets of sliding grooves (21) are symmetrically arranged on the cabinet door (20). The two sets of sliding grooves (21) are matched with the positions of two sets of baffles (30). A slider (22) is provided in the sliding groove (21). A moving block (60) that moves back and forth is provided on the baffle (30). A connecting rope (50) is provided between the slider (22) and the moving block (60). The displacement of the moving block (60) causes the connecting rope (50) to tighten, driving the cabinet door (20) to close on the cabinet body (10).

2. A medium-voltage switchgear with automatic door closing and locking as described in claim 1, characterized in that: The baffle (30) has a movable cavity (32) inside, and the baffle (30) also has a movable through groove (31) extending into the movable cavity (32); A screw (33) is rotatably disposed in the movable cavity (32), and a threaded sleeve (61) is disposed on the movable block (60). The movable block (60) is slidably disposed in the movable through groove (31), and the threaded sleeve (61) is threadedly disposed on the outer wall of the screw (33).

3. A medium-voltage switchgear with automatic door closing and locking according to claim 2, characterized in that: The side wall of the cabinet (10) is provided with two sets of servo motors (40). The two sets of servo motors (40) are respectively connected to two sets of screws (33). The two sets of servo motors (40) rotate in the same direction at the same time, respectively driving the two sets of screws (33) to rotate.

4. A medium-voltage switchgear with automatic door closing and locking as described in claim 3, characterized in that: The servo motor (40) is equipped with a remote control module for remotely controlling the operation of the servo motor (40). The servo motor (40) is also equipped with a timed start module for timed control of the servo motor (40) to start.

5. A medium-voltage switchgear with automatic door closing and locking according to claim 4, characterized in that: The length of the slide groove (21) is less than the length of the movable through groove (31), and the movable through groove (31) is the same length as the screw (33).

6. A medium-voltage switchgear with automatic door closing and locking according to claim 5, characterized in that: The cabinet (10) has two sets of mounting plates (11) symmetrically arranged on its side wall, and a mounting rod (12) is arranged between the two sets of mounting plates (11). The cabinet door (20) has a mounting sleeve (23) on its side wall, and the mounting sleeve (23) is rotatably mounted on the outer wall of the mounting rod (12).

7. A medium-voltage switchgear with automatic door closing and locking according to claim 6, characterized in that: The mounting rod (12) is fixedly provided with a mounting post (13) at its center. The mounting sleeve (23) is provided with two sets of torsion springs (70). The two sets of torsion springs (70) are respectively connected to the two ends of the mounting post (13). The torsion springs (70) are also connected to the inner side wall of the mounting sleeve (23).

8. A method for using a medium-voltage switchgear with automatic door closing and locking as described in claim 7, characterized in that: Includes the following steps: S1. Mobile Installation: Place the movable block (60) in the movable through groove (31), and make the threaded sleeve (61) fit on the outer wall of the screw (33), and make the slider (22) in the slide groove (21), and adjust the slider (22) until the slider (22) can slide in the slide groove (21); S2, Displacement Test: The servo motor (40) drives the screw (33) to rotate. Through the threaded engagement between the screw (33) and the threaded sleeve (61), the moving block (60) is driven to slide in the moving through groove (31) for testing. If it cannot slide normally, the moving block (60) is adjusted until it can slide in the moving through groove (31). S3, Connection Limit: Move the slider (22) and the moving block (60) to the end away from the servo motor (40), and at the same time make the cabinet door (20) rotate around the axis of the mounting rod (12) until the torsion spring (70) is reset and the cabinet door (20) and the cabinet body (10) are in an open state. Then connect the connecting rope (50) between the slider (22) and the moving block (60). S4, Lockout Test: Repeat S2, displacement test, so that the screw (33) rotates and drives the moving block (60) to move towards the servo motor (40) until the moving block (60) moves close to the servo motor (40) along the axis of the screw (33), thereby pulling the slider (22) in the slide groove (21) through the connecting rope (50). When the slider (22) does not move, the moving block (60) continues to move, so that the cabinet door (20) rotates around the axis of the mounting rod (12) and the torsion spring (70) rotates and deforms. When the moving block (60) moves to the end of the screw (33), the cabinet door (20) fits against the cabinet (10); S5, Open Test: After the S4 and locking tests are completed, the servo motor (40) rotates in the opposite direction, driving the moving block (60) to move away from the servo motor (40) until the moving block (60) moves away from the servo motor (40) along the axis of the screw (33), and the deformed torsion spring (70) resets and drives the cabinet door (20) to rotate, so that the cabinet door (20) opens. S6, Lock Off: After the S5 test is completed, repeat the S4 test until the cabinet door (20) fits against the cabinet body (10).

9. The method of using a medium-voltage switchgear with automatic door closing and locking as described in claim 8, characterized in that: In S1, during the mobile installation, sliders (22) are installed in both sets of sliding grooves (21) and moving blocks (60) are installed in both sets of moving through grooves (31).

10. The method of using a medium-voltage switchgear with automatic door closing and locking as described in claim 8, characterized in that: After S6 and locking are completed, if it is necessary to accelerate heat dissipation inside the cabinet (10), repeat the two sets of steps S4, locking test, and S5, opening test, so that the cabinet door (20) is constantly opened and closed, disturbing the air inside the cabinet (10).

Images