MNS type switch cabinet

Abstract

The utility model discloses an MNS type switch cabinet in the technical field of MNS power distribution cabinets, which comprises a cabinet body, a support plate is fixedly mounted in an inner cavity of the cabinet body, the support plate divides the inner cavity of the cabinet body into a bus chamber and a drawer chamber, and a heat dissipation mechanism is arranged at the top of the bus chamber; the heat dissipation mechanism comprises a fixing plate, the fixing plate is fixedly installed on the top of the cabinet body and located over the bus chamber, a plurality of heat dissipation fins are inserted into the surface of the fixing plate from left to right at equal intervals, and a shell is fixedly installed on the top of the cabinet body. And the plurality of cooling fins are inserted in the surface of the fixed plate, when the temperature in the bus chamber is too high, heat can be dissipated outwards through the cooling fins, heat is concentrated in the shell through the cooling fins, and ventilation holes are formed in the surface of the shell, so that heat is dissipated outwards, the current-carrying capacity of the main bus bar can be improved, the use amount of copper bars is saved, and the service life of the main bus bar is prolonged. And the service life of the MNS switch cabinet is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of MNS power distribution cabinets, in particular to an MNS type switch cabinet. Background Art

[0002] MNS power distribution cabinet, MNS type low voltage withdrawable switchgear (hereinafter referred to as switchgear) is an advanced low voltage switchgear designed and improved with reference to the foreign MNS series low voltage switchgear to meet the needs of the development of the power industry. This product complies with the national standards GB7251, VDE660 and ZBK36001-89 "Low Voltage Withdrawable Switchgear" and the international standard IEC439. MNS type low voltage switchgear meets the needs of various power supply and distribution, and can be widely used in various low voltage distribution systems such as power plants, substations, industrial and mining enterprises, buildings, hotels, municipal construction, etc.

[0003] The existing MNS switch cabinet top cover is a flat plate without openings, which has poor heat dissipation capacity, affects the service life of the busbar room, and consumes a lot of copper bars. Therefore, we propose an MNS switch cabinet to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] Therefore, the purpose of the utility model is to provide an MNS type switch cabinet, which can solve the problem that the top cover of the existing MNS switch cabinet is a flat plate without openings, has poor heat dissipation capacity, affects the service life of the busbar room, and consumes a large amount of copper bars.

[0006] In order to solve the above technical problems, the utility model provides an MNS type switch cabinet, which adopts the following technical solution: comprising a cabinet, wherein a support plate is fixedly installed in the inner cavity of the cabinet, and the support plate divides the inner cavity of the cabinet into a busbar chamber and a drawer chamber from top to bottom, and a heat dissipation mechanism is provided on the top of the busbar chamber;

[0007] The heat dissipation mechanism includes a fixing plate, which is fixedly installed on the top of the cabinet and located directly above the busbar chamber. A plurality of heat sinks are inserted on the surface of the fixing plate at equal distances from left to right. A shell is fixedly installed on the top of the cabinet, a top cover is fixedly installed on the top of the shell, and a plurality of ventilation holes are provided on the outer walls on all four sides of the shell.

[0008] Optionally, a cabinet frame is fixedly installed in the inner cavity of the drawer room, and a plurality of ventilation plates are fixedly installed in the inner cavity of the cabinet frame from top to bottom. A plurality of first ventilation holes are opened in the inner cavity of each ventilation plate from front to back, and a plurality of second ventilation holes are opened on both sides of the cabinet frame. Each of the first ventilation holes is connected to the second ventilation hole at a corresponding position, and drawers are provided between adjacent ventilation plates.

[0009] By adopting the above-mentioned technical solution, this solution provides a cabinet frame in the inner cavity of the drawer room, and multiple ventilation plates are installed in the inner cavity of the cabinet frame, each ventilation plate is provided with multiple first ventilation holes, and multiple second ventilation holes are provided on the left and right sides of the cabinet frame, and each first ventilation hole is connected to the second ventilation hole at the corresponding position, so that the cabinet frame as a whole is ventilated.

[0010] Optionally, two first limit plates and two second limit plates are fixedly installed on the left and right sides of the cabinet frame respectively, the two first limit plates are distributed up and down on the left side of the cabinet frame, and the two second limit plates are distributed up and down on the right side of the cabinet frame.

[0011] By adopting the above technical solution, this solution has a limiting effect on the first movable plate by providing two first limiting plates on the left side of the cabinet frame, and has a limiting effect on the second movable plate by providing two second limiting plates on the right side of the cabinet frame.

[0012] Optionally, a first screw is rotatably connected between the upper inner wall of the drawer chamber and the first limit plate at the bottom, and two first limit rods are fixedly installed between the upper inner wall of the drawer chamber and the first limit plate at the bottom, and the two first limit rods are located on the front and rear sides of the first screw.

[0013] By adopting the above technical solution, the present solution provides a first screw rod and two first limiting rods, so that the first movable plate can move up and down through the first screw rod, and the two first limiting rods play a role in stabilizing the movement.

[0014] Optionally, a first movable plate is movably connected to the surface of the first screw rod by a thread, a fan is fixedly installed on the right side of the first movable plate, the front and rear ends of the first movable plate penetrate the surfaces of the first limiting rods at corresponding positions, and the first movable plate is slidably arranged with the two first limiting rods.

[0015] By adopting the above technical solution, in this solution, a fan is fixedly installed on the right side of the first movable plate, and the fan can pass the wind flow through the first ventilation port and the second ventilation port, thereby dissipating the heat of the cabinet frame.

[0016] Optionally, a second screw is rotatably connected between the upper inner wall of the drawer chamber and the second limit plate at the bottom, and two second limit rods are fixedly installed between the upper inner wall of the drawer chamber and the second limit plate at the bottom, and the two second limit rods are located on the front and rear sides of the second screw.

[0017] By adopting the above technical solution, the second movable plate can move up and down on the surface of the second screw by setting the second screw, and by setting two second limiting rods, the two second limiting rods can stabilize the movement of the second movable plate.

[0018] Optionally, the second screw surface is threadedly movably connected to a second movable plate, the right side of the second movable plate is rotatably connected to a cleaning brush, a plurality of heat exhaust ports are opened on the right side of the cabinet, the surface of the cleaning brush is attached to the left side of the heat exhaust port, and the cleaning brush is rollingly arranged on the left side of the heat exhaust port.

[0019] By adopting the above technical solution, this solution opens multiple heat exhaust ports on the right side of the cabinet. When dust accumulates on the surface of the heat exhaust port, a cleaning brush can be rolled on the surface of the heat exhaust port to adhere the dust, thereby achieving the purpose of dust removal.

[0020] Optionally, a motor is fixedly mounted on the lower inner wall surface of the drawer chamber, the output end of the motor is fixedly connected to the bottom end of the second screw rod, and shaft sleeves are fixedly mounted on the top ends of the first screw rod and the second screw rod, and a belt is provided between the two shaft sleeves.

[0021] By adopting the above technical solution, this solution sets a motor, and the motor starts to drive the second screw to rotate. The second screw and the top of the first screw are fixedly installed with sleeves, and a belt is provided between the two sleeves. Therefore, when the second screw rotates, it also drives the first screw to rotate at the same time.

[0022] In summary, the utility model includes at least one of the following beneficial effects: 1. By providing a fixing plate on the top of the busbar chamber and inserting a plurality of heat sinks on the surface of the fixing plate, when the temperature inside the busbar chamber is too high, the heat can be dissipated outwards through the heat sink, and the heat is concentrated inside the shell through the heat sink. By opening ventilation holes on the surface of the shell, the heat is dissipated to the outside, thereby achieving the goal of improving the current carrying capacity of the main busbar, saving the amount of copper busbar, and extending the service life of the MNS switch cabinet.

[0023] 2. A first movable plate is movably connected with a thread on the surface of the first screw, and a fan is fixedly installed on the right side of the first movable plate. The fan can dissipate heat to the cabinet frame, and the heat moves to the right side of the cabinet through the first vent and the second vent, and finally dissipates heat outward through the heat exhaust port on the right side of the cabinet. A second movable plate is provided on the surface of the second screw, and a cleaning brush is rotatably connected to the right side of the second movable plate. The cleaning brush can be rolled on the surface of the heat exhaust port to adhere dust, thereby playing a role in dust removal, and cooperates with the fan to greatly improve the heat dissipation effect of the cabinet frame, thereby realizing heat dissipation and dust removal protection for the cabinet frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 3 It is a schematic diagram of the surface structure of the fixed plate of the utility model;

[0028] Figure 4 It is a cross-sectional view of the upper part of the cabinet of the utility model;

[0029] Figure 5 It is a right side sectional view of the cabinet of the utility model;

[0030] Figure 6 It is a right side sectional view of another cabinet of the utility model;

[0031] Figure 7 This is a schematic diagram of the cabinet structure of the utility model.

[0032] Explanation of the accompanying drawings: 1. cabinet body; 2. support plate; 3. busbar chamber; 4. drawer chamber; 5. heat sink; 6. shell; 7. top cover; 8. ventilation hole; 9. cabinet frame; 10. ventilation plate; 11. first ventilation port; 12. second ventilation port; 13. drawer; 14. first limit plate; 15. second limit plate; 16. first screw; 17. first limit rod; 18. first movable plate; 19. fan; 20. second screw; 21. second limit rod; 22. second movable plate; 23. cleaning brush; 24. heat exhaust port; 25. motor; 26. bushing; 27. belt; 28. fixing plate. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-7 The utility model is described in further detail.

[0034] Embodiment 1, refer to Figure 1-2 In this embodiment, in order to solve the problem that the top cover of the existing MNS switch cabinet is a flat plate without openings, the heat dissipation capacity is poor, the service life of the busbar room is affected, and the consumption of copper bars is large, the utility model discloses an MNS type switch cabinet,

[0035] The cabinet comprises a cabinet body 1, wherein a support plate 2 is fixedly installed in the inner cavity of the cabinet body 1, and the support plate 2 divides the inner cavity of the cabinet body 1 into a busbar chamber 3 and a drawer chamber 4 from top to bottom, and a heat dissipation mechanism is provided on the top of the busbar chamber 3;

[0036] The heat dissipation mechanism includes a fixing plate 28, which is fixedly installed on the top of the cabinet 1 and is located directly above the busbar chamber 3. A plurality of heat sinks 5 are inserted on the surface of the fixing plate 28 at equal distances from left to right. A shell 6 is fixedly installed on the top of the cabinet 1, a top cover 7 is fixedly installed on the top of the shell 6, and a plurality of ventilation holes 8 are provided on the outer walls of the four sides of the shell 6.

[0037] The specific working principle is: when the temperature inside the busbar chamber 3 is too high, the heat can be dissipated outwards through the heat sink 5, and the heat is concentrated inside the shell 6 through the heat sink 5. By opening ventilation holes 8 on the surface of the shell 6, the heat is dissipated to the outside. At an ambient temperature of 40 degrees Celsius, the current carrying capacity of the main busbar can be increased by about 10%, saving the use of copper bars.

[0038] Example 2, refer to Figure 2-7 In this embodiment, in order to solve the problem of low heat dissipation efficiency caused by dust accumulation at the heat dissipation port of the existing MNS switch cabinet, based on the same concept as the above-mentioned embodiment 1, the MNS switch cabinet also includes:

[0039] A cabinet frame 9 is fixedly installed in the inner cavity of the drawer room 4, and a plurality of ventilation plates 10 are fixedly installed in the inner cavity of the cabinet frame 9 from top to bottom. A plurality of first ventilation holes 11 are opened in the inner cavity of each ventilation plate 10 from front to back, and a plurality of second ventilation holes 12 are opened on both sides of the cabinet frame 9. Each first ventilation hole 11 is connected to the second ventilation hole 12 at the corresponding position, and drawers 13 are arranged between adjacent ventilation plates 10.

[0040] Two first limit plates 14 and two second limit plates 15 are fixedly installed on the left and right sides of the cabinet frame 9 respectively. The two first limit plates 14 are distributed vertically on the left side of the cabinet frame 9, and the two second limit plates 15 are distributed vertically on the right side of the cabinet frame 9.

[0041] A first screw 16 is rotatably connected between the upper inner wall of the drawer chamber 4 and the first limiting plate 14 at the bottom, and two first limiting rods 17 are fixedly installed between the upper inner wall of the drawer chamber 4 and the first limiting plate 14 at the bottom, and the two first limiting rods 17 are located on the front and rear sides of the first screw 16 .

[0042] The surface of the first screw rod 16 is threadedly connected with a first movable plate 18, and a fan 19 is fixedly installed on the right side of the first movable plate 18. The front and rear ends of the first movable plate 18 penetrate the surfaces of the first limiting rods 17 at corresponding positions, and the first movable plate 18 and the two first limiting rods 17 are slidably arranged.

[0043] A second screw 20 is rotatably connected between the upper inner wall of the drawer chamber 4 and the second limit plate 15 at the bottom, and two second limit rods 21 are fixedly installed between the upper inner wall of the drawer chamber 4 and the second limit plate 15 at the bottom, and the two second limit rods 21 are located on the front and rear sides of the second screw 20.

[0044] The second screw rod 20 is threadedly movably connected to a second movable plate 22, and a cleaning brush 23 is rotatably connected to the right side of the second movable plate 22. A plurality of heat exhaust ports 24 are opened on the right side of the cabinet 1, and the surface of the cleaning brush 23 is attached to the left side of the heat exhaust port 24, and the cleaning brush 23 is rollingly arranged on the left side of the heat exhaust port 24.

[0045] A motor 25 is fixedly installed on the inner wall surface of the lower side of the drawer chamber 4, and the output end of the motor 25 is fixedly connected to the bottom end of the second screw 20. The top ends of the first screw 16 and the second screw 20 are fixedly installed with shaft sleeves 26, and a belt 27 is provided between the two shaft sleeves 26.

[0046] The specific working principle is: the motor 25 starts and drives the second screw 20 to rotate. The second screw 20 and the top of the first screw 16 are fixedly installed with a sleeve 26, and a belt 27 is provided between the two sleeves 26. Therefore, when the second screw 20 rotates, it also drives the first screw 16 to rotate. The rotation of the first screw 16 drives the first movable plate 18 to move up and down. At this time, the fan 19 on the right side of the first movable plate 18 moves up and down to blow towards the first vent 11 and the second vent on the cabinet frame 9, so that the heat is dissipated outward through the first vent 11 and the second vent 12 through the heat exhaust port 24 on the right side of the cabinet body 1. When the second screw 20 rotates, it drives the second movable plate 22 to move up and down. When the second movable plate 22 moves up and down, it drives the cleaning brush 23 to roll on the left side of the heat exhaust port 24 to adhere to the dust, thereby playing a role in dust removal.

[0047] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An MNS type switch cabinet, comprising a cabinet body (1), characterized in that: A support plate (2) is fixedly installed in the inner cavity of the cabinet (1), and the support plate (2) divides the inner cavity of the cabinet (1) into a busbar chamber (3) and a drawer chamber (4) from top to bottom, and a heat dissipation mechanism is provided on the top of the busbar chamber (3); The heat dissipation mechanism comprises a fixing plate (28), the fixing plate (28) being fixedly mounted on the top of the cabinet (1), and the fixing plate (28) being located directly above the busbar chamber (3), a plurality of heat sinks (5) being inserted at equal distances from left to right on the surface of the fixing plate (28), a shell (6) being fixedly mounted on the top of the cabinet (1), a top cover (7) being fixedly mounted on the top of the shell (6), and a plurality of ventilation holes (8) being provided on the outer walls of four sides of the shell (6).

2. The MNS switch cabinet according to claim 1, characterized in that: A cabinet frame (9) is fixedly installed in the inner cavity of the drawer chamber (4), and a plurality of ventilation plates (10) are fixedly installed in the inner cavity of the cabinet frame (9) from top to bottom. A plurality of first ventilation openings (11) are opened in the inner cavity of each ventilation plate (10) from front to back, and a plurality of second ventilation openings (12) are opened on both sides of the cabinet frame (9). Each of the first ventilation openings (11) is connected to a second ventilation opening (12) at a corresponding position, and a drawer (13) is provided between adjacent ventilation plates (10).

3. The MNS switch cabinet according to claim 2 is characterized in that: Two first limit plates (14) and two second limit plates (15) are fixedly mounted on the left and right sides of the cabinet frame (9), respectively; the two first limit plates (14) are vertically distributed on the left side of the cabinet frame (9), and the two second limit plates (15) are vertically distributed on the right side of the cabinet frame (9).

4. The MNS switch cabinet according to claim 1, characterized in that: A first screw (16) is rotatably connected between the upper inner wall of the drawer chamber (4) and the first limiting plate (14) at the bottom, and two first limiting rods (17) are fixedly installed between the upper inner wall of the drawer chamber (4) and the first limiting plate (14) at the bottom, and the two first limiting rods (17) are located at the front and rear sides of the first screw (16).

5. The MNS switch cabinet according to claim 4 is characterized in that: The surface of the first screw rod (16) is movably connected with a first movable plate (18) by a thread, a fan (19) is fixedly installed on the right side of the first movable plate (18), the front and rear ends of the first movable plate (18) penetrate the surface of the first limiting rod (17) at the corresponding position, and the first movable plate (18) and the two first limiting rods (17) are slidably arranged.

6. The MNS switch cabinet according to claim 1, characterized in that: A second screw (20) is rotatably connected between the upper inner wall of the drawer chamber (4) and the second limiting plate (15) at the bottom, and two second limiting rods (21) are fixedly installed between the upper inner wall of the drawer chamber (4) and the second limiting plate (15) at the bottom, and the two second limiting rods (21) are located at the front and rear sides of the second screw (20).

7. The MNS switch cabinet according to claim 6, characterized in that: The surface of the second screw rod (20) is movably connected to a second movable plate (22) by a thread, and the right side of the second movable plate (22) is rotatably connected to a cleaning brush (23). The right side of the cabinet (1) is provided with a plurality of heat dissipation ports (24), and the surface of the cleaning brush (23) is attached to the left side of the heat dissipation port (24), and the cleaning brush (23) is rollingly arranged on the left side of the heat dissipation port (24).

8. The MNS switch cabinet according to claim 5, characterized in that: A motor (25) is fixedly mounted on the inner wall surface of the lower side of the drawer chamber (4); the output end of the motor (25) is fixedly connected to the bottom end of the second screw rod (20); shaft sleeves (26) are fixedly mounted on the top ends of the first screw rod (16) and the second screw rod (20); and a belt (27) is provided between the two shaft sleeves (26).

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