Explosion-proof frequency converter cabinet

Abstract

The utility model relates to the field of explosion-proof frequency converter cabinets, in particular to an explosion-proof frequency converter cabinet, and adopts the technical scheme that the explosion-proof frequency converter cabinet comprises a cabinet body and heat dissipation openings, the heat dissipation openings are formed in the surfaces of the lower ends of the two sides of the cabinet body, dustproof nets are mounted on the inner sides of the heat dissipation openings, and protection plates are symmetrically mounted on the two sides of the cabinet body. The cabinet body is provided with a heat dissipation port, the heat dissipation port is provided with a protection plate, buffer assemblies are arranged between the cabinet body and the protection plate, the buffer assemblies are located at four corners of one side of the protection plate, and one side, close to the heat dissipation port, of the protection plate is provided with a cleaning assembly. Meanwhile, anti-collision protection can be carried out on the side edge of the cabinet body, a dustproof net can carry out dust prevention on a heat dissipation opening, the inner cavity of the shell on the surface of the cabinet body is of a hollow structure, the heat dissipation opening and a through hole are staggered and not aligned, hot air in the cabinet body can flow out through the through hole, and then the hot air can flow downwards and be discharged outwards through the heat dissipation opening; and external dust and rainwater are prevented from entering the cabinet body.

Description

Technical Field

[0001] The utility model relates to the field of explosion-proof frequency converter cabinets, in particular to an explosion-proof frequency converter cabinet. Background Art

[0002] Explosion-proof inverters use frequency conversion technology and microelectronics technology to control the power transmission components of AC motors by changing the frequency and amplitude of the motor's working power supply. In order to protect the safety of explosion-proof inverters, people generally install explosion-proof inverters in explosion-proof inverter cabinets.

[0003] Explosion-proof inverters generate a lot of heat when in use. Existing explosion-proof inverter cabinets generally dissipate heat through fans and heat dissipation ports, and the heat dissipation ports are usually opened on the surface of the explosion-proof inverter cabinet shell, without any waterproof and dustproof structure. External water and dust can easily enter the explosion-proof inverter cabinet through the heat dissipation ports. Once water enters the distribution box, it is easy to damage the lines in the explosion-proof inverter cabinet and the explosion-proof inverter.

[0004] Therefore, it is necessary to invent an explosion-proof frequency converter cabinet. Utility Model Content

[0005] The purpose of the utility model is to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an explosion-proof inverter cabinet, comprising a cabinet body and a heat dissipation port, heat dissipation ports are opened on the lower end surfaces of both sides of the cabinet body, dustproof nets are installed on the inner sides of the heat dissipation ports, protective plates are symmetrically installed on both sides of the cabinet body, a buffer assembly is arranged between the cabinet body and the protective plate, the buffer assembly is located at the four corners of one side of the protective plate, a cleaning assembly is arranged on the side of the protective plate close to the heat dissipation port, and shielding plates are movably hinged on the upper ends of both sides of the cabinet body.

[0007] Based on the above features: when the side of the cabinet is impacted, the protective plate will squeeze the buffer component for buffering protection, and try to avoid the impact object directly hitting the cabinet and causing damage to the cabinet, while the shielding plate is inclined to block the heat dissipation port and the upper end of the protective plate, and try to avoid rainwater from entering the inside of the heat dissipation port. When outside air enters the inside of the heat dissipation port, the dustproof net can perform dust filtering in the heat dissipation port to prevent impurities in the dust from entering the inside of the cabinet. When dust adheres to the surface of the dustproof net, the dustproof net can be cleaned by the cleaning component without removing the protective plate.

[0008] Preferably, the cabinet comprises an outer shell, and a through hole is formed at an upper end of a side of the outer shell away from the heat dissipation port, a discharge port is formed at the bottom of the outer shell, and a sealing plug is installed inside the discharge port.

[0009] Based on the above characteristics: the hot air in the cabinet can flow out through the through holes, and then the hot air can flow downward and be discharged outward through the heat dissipation port. Similarly, the outside air can flow into the cabinet through the heat dissipation port and the through holes in turn. Since the heat dissipation port and the through holes are staggered and misaligned, if some rainwater enters the heat dissipation port, the rainwater will gather at the lower end of the inner cavity of the shell. When the gathered rainwater needs to be discharged, the sealing plug can be opened to allow the rainwater to be discharged through the discharge port.

[0010] Preferably, the inner cavity of the shell is a hollow structure.

[0011] Based on the above characteristics: not only is it convenient for air to circulate inside the shell, but also some rainwater entering the heat dissipation port can be gathered at the lower end of the inner cavity of the shell.

[0012] Preferably, the buffer assembly comprises a fixed sleeve and a piston rod movably connected to one side of the fixed sleeve, a damping plate is installed at one end of the piston rod, and a buffer spring is installed at one side of the damping plate.

[0013] Based on the above features: the fixed sleeve is fixed on the side of the cabinet, and the piston rod is fixed on one side of the protective plate. When the protective plate is hit, the piston rod will shrink into the fixed sleeve, and the damping plate can be used to squeeze the buffer spring to dissipate energy, thereby minimizing damage to the cabinet.

[0014] Preferably, the cleaning component includes a movable groove on one side of the protective plate close to the heat dissipation port, an adjusting screw is installed inside the movable groove, a handle is installed at one end of the adjusting screw, and a movable nut is threadedly connected to the outside of the adjusting screw.

[0015] Based on the above features: when the dust screen needs to be cleaned, the handle can be turned, and the handle can drive the adjusting screw rod to adjust forward and reverse, and the adjusting screw rod can drive the movable nut to move back and forth left and right.

[0016] Preferably, a connecting plate is fixedly mounted on one side of the movable nut, a positioning plate is mounted on a side of the connecting plate away from the movable nut, and a cleaning brush is mounted on the surface of the positioning plate.

[0017] Based on the above features: when the movable nut moves back and forth, the positioning plate and the cleaning brush can be driven to move through the connecting plate. Since the cleaning brush is attached to the surface of the dustproof net, the surface of the dustproof net can be cleaned when the cleaning brush moves.

[0018] Preferably, the length of the positioning plate and the cleaning brush is the same as the height of the heat dissipation port.

[0019] Based on the above characteristics: avoid having a cleaning brush that is shorter than the height of the heat dissipation port so that the cleaning brush cannot fully clean the dust screen.

[0020] The beneficial effects of the utility model are:

[0021] 1. The protective plate can not only provide preliminary shielding for the heat dissipation vents on both sides of the cabinet, but also provide anti-collision protection for the sides of the cabinet. The dustproof net can prevent dust from the heat dissipation vents. Since the inner cavity of the shell on the surface of the cabinet is a hollow structure, and the heat dissipation vents and the through holes are staggered and misaligned, the hot air in the cabinet can flow out through the through holes, and then the hot air can flow downward and be discharged outward through the heat dissipation vents. If some rainwater enters the heat dissipation vents, the rainwater will gather at the lower end of the inner cavity of the shell. When the gathered rainwater needs to be discharged, the sealing plug can be opened to allow the rainwater to be discharged through the discharge port to prevent external dust and rainwater from entering the cabinet.

[0022] 2. When the dust net needs to be cleaned, the handle can be turned to drive the adjusting screw to adjust forward and reverse, and the adjusting screw can drive the movable nut to move back and forth. When the movable nut moves back and forth, the positioning plate and the cleaning brush can be driven to move through the connecting plate. Since the cleaning brush fits the surface of the dust net, the surface of the dust net can be cleaned when the cleaning brush moves, which can not only prevent the surface of the dust net from being covered by dust and causing blockage, but also the dust net can be cleaned without removing the protective plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the overall structure of an explosion-proof frequency converter cabinet provided by the utility model;

[0024] Figure 2 This is a cross-sectional view of the interior of an explosion-proof inverter cabinet shell provided by the utility model;

[0025] Figure 3 A cross-sectional view of a protective plate of an explosion-proof frequency converter cabinet provided by the utility model;

[0026] Figure 4 The utility model provides a schematic structural diagram of a buffer component of an explosion-proof frequency converter cabinet.

[0027] In the figure: 1. cabinet; 11. shell; 12. through hole; 13. discharge port; 14. sealing plug; 2. heat dissipation port; 3. dust screen; 4. protective plate; 5. buffer assembly; 51. fixing sleeve; 52. piston rod; 53. damping plate; 54. buffer spring; 6. cleaning assembly; 61. moving groove; 62. adjusting screw rod; 63. handle; 64. movable nut; 641. connecting plate; 642. positioning plate; 643. cleaning brush; 7. shielding plate. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0029] Refer to the attached Figure 1-4 The utility model provides an explosion-proof inverter cabinet, including a cabinet body 1 and a heat dissipation port 2. The lower end surfaces of both sides of the cabinet body 1 are provided with heat dissipation ports 2, and dustproof nets 3 are installed inside the heat dissipation ports 2. Protective plates 4 are symmetrically installed on both sides of the cabinet body 1. Buffer components 5 are arranged between the cabinet body 1 and the protective plates 4. The buffer components 5 are located at the four corners of one side of the protective plates 4. A cleaning component 6 is arranged on the side of the protective plates 4 close to the heat dissipation port 2, and shielding plates 7 are movably hinged at the upper ends of both sides of the cabinet body 1.

[0030] The protective plate 4 can initially block the heat dissipation port 2 on both sides of the cabinet 1 (the air can flow through the gap between the protective plate 4 and the cabinet 1). When the side of the cabinet 1 is impacted, the protective plate 4 will squeeze the buffer component 5 for buffering protection, and try to avoid the impact object directly hitting the cabinet 1 and causing damage to the cabinet 1. The shielding plate 7 is inclined at the heat dissipation port 2 and the upper end of the protective plate 4 to block the rainwater from entering the inside of the heat dissipation port 2. When outside air enters the inside of the heat dissipation port 2, the dustproof net 3 can perform dust filtering in the heat dissipation port 2 to prevent impurities in the dust from entering the inside of the cabinet 1. When dust adheres to the surface of the dustproof net 3, the dustproof net 3 can be cleaned by the cleaning component 6 without removing the protective plate 4.

[0031] Preferably, the cabinet 1 comprises a shell 11 and a through hole 12 is formed at the upper end of the shell 11 away from the heat dissipation port 2 , a discharge port 13 is formed at the bottom of the shell 11 , and a sealing plug 14 is installed inside the discharge port 13 .

[0032] The hot air in the cabinet 1 can flow out through the through hole 12 (a cooling fan can be installed on one side of the through hole 12, or it can be not installed. It can be set according to specific needs. It is not drawn in the figure of this application, but it is specially explained). Then the hot air can flow downward and be discharged outward through the heat dissipation port 2. Similarly, the outside air can flow into the cabinet 1 through the heat dissipation port 2 and the through hole 12 in turn. Since the heat dissipation port 2 and the through hole 12 are staggered and not aligned, if some rainwater enters the heat dissipation port 2, the rainwater will gather at the lower end of the inner cavity of the shell 11. When the gathered rainwater needs to be discharged, the sealing plug 14 can be opened to allow the rainwater to be discharged through the discharge port 13.

[0033] Preferably, the inner cavity of the shell 11 is a hollow structure.

[0034] Not only does it facilitate air circulation inside the shell 11 , but also some rainwater entering the heat dissipation port 2 can be gathered at the lower end of the inner cavity of the shell 11 .

[0035] Preferably, the buffer assembly 5 includes a fixed sleeve 51 and a piston rod 52 movably connected to one side of the fixed sleeve 51 , a damping plate 53 is installed at one end of the piston rod 52 , and a buffer spring 54 is installed at one side of the damping plate 53 .

[0036] The fixing sleeve 51 is fixed to the side of the cabinet 1, and the piston rod 52 is fixed to one side of the protective plate 4. When the protective plate 4 is hit, the piston rod 52 will shrink into the fixing sleeve 51, and the damping plate 53 can be used to squeeze the buffer spring 54 to dissipate energy, thereby minimizing damage to the cabinet 1.

[0037] Preferably, the cleaning assembly 6 includes a movable groove 61 formed on one side of the protective plate 4 close to the heat dissipation port 2, an adjusting screw rod 62 is installed inside the movable groove 61, a handle 63 is installed at one end of the adjusting screw rod 62, and a movable nut 64 is threadedly connected to the outside of the adjusting screw rod 62.

[0038] When the dust screen 3 needs to be cleaned, the handle 63 can be rotated, and the handle 63 can drive the adjusting screw rod 62 to adjust forward and reverse, and the adjusting screw rod 62 can drive the movable nut 64 to move back and forth.

[0039] Preferably, a connecting plate 641 is fixedly mounted on one side of the movable nut 64 , a positioning plate 642 is mounted on the side of the connecting plate 641 away from the movable nut 64 , and a cleaning brush 643 is mounted on the surface of the positioning plate 642 .

[0040] When the movable nut 64 moves back and forth, the positioning plate 642 and the cleaning brush 643 can be driven to move through the connecting plate 641. Since the cleaning brush 643 is attached to the surface of the dustproof net 3, the surface of the dustproof net 3 can be cleaned when the cleaning brush 643 moves.

[0041] Preferably, the length of the positioning plate 642 and the cleaning brush 643 is the same as the height of the heat dissipation port 2 .

[0042] Avoid the cleaning brush 643 being shorter than the height of the heat dissipation port 2 so that the cleaning brush 643 cannot fully clean the dustproof net 3 .

[0043] The use process of the utility model is as follows: the protective plate 4 can initially block the heat dissipation port 2 on both sides of the cabinet 1. When the protective plate 4 is hit, the piston rod 52 will shrink into the fixed sleeve 51, and the damping plate 53 can be used to squeeze the buffer spring 54 to dissipate energy, so as to avoid damage to the cabinet 1 as much as possible. The hot air in the cabinet 1 can flow out through the through hole 12, and then the hot air can flow downward and be discharged outward through the heat dissipation port 2. Similarly, the outside air can flow into the cabinet 1 through the heat dissipation port 2 and the through hole 12 in turn. Since the heat dissipation port 2 and the through hole 12 are staggered and not aligned, if some rainwater enters the heat dissipation port 2, the rainwater will gather at the lower end of the inner cavity of the shell 11. When the gathered rainwater needs to be discharged, the sealing plug 14 can be opened to allow the rainwater to be discharged through the discharge port 13.

[0044] The above is only a preferred embodiment of the utility model. Any person skilled in the art may modify the utility model by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the utility model shall fall within the scope of protection claimed by the utility model.

Claims

1. An explosion-proof frequency converter cabinet, comprising a cabinet body (1) and a heat dissipation port (2), characterized in that: The lower end surfaces of both sides of the cabinet (1) are provided with heat dissipation openings (2), dust screens (3) are installed inside the heat dissipation openings (2), protective plates (4) are symmetrically installed on both sides of the cabinet (1), a buffer component (5) is arranged between the cabinet (1) and the protective plate (4), and the buffer component (5) is located at four corners of one side of the protective plate (4), a cleaning component (6) is arranged on one side of the protective plate (4) close to the heat dissipation openings (2), and shielding plates (7) are movably hinged at the upper ends of both sides of the cabinet (1).

2. The explosion-proof inverter cabinet according to claim 1, characterized in that: The cabinet (1) comprises an outer shell (11), and a through hole (12) is provided at the upper end of a side of the outer shell (11) away from the heat dissipation port (2), a discharge port (13) is provided at the bottom of the outer shell (11), and a sealing plug (14) is installed inside the discharge port (13).

3. The explosion-proof frequency converter cabinet according to claim 2, characterized in that: The inner cavity of the shell (11) is a hollow structure.

4. The explosion-proof inverter cabinet according to claim 1, characterized in that: The buffer assembly (5) comprises a fixed sleeve (51) and a piston rod (52) movably connected to one side of the fixed sleeve (51); a damping plate (53) is mounted on one end of the piston rod (52); and a buffer spring (54) is mounted on one side of the damping plate (53).

5. The explosion-proof frequency converter cabinet according to claim 1, characterized in that: The cleaning assembly (6) comprises a protective plate (4) having a movable groove (61) formed on one side close to the heat dissipation port (2), an adjusting screw rod (62) being installed inside the movable groove (61), a handle (63) being installed at one end of the adjusting screw rod (62), and a movable nut (64) being threadedly connected to the outside of the adjusting screw rod (62).

6. The explosion-proof frequency converter cabinet according to claim 5, characterized in that: A connecting plate (641) is fixedly mounted on one side of the movable nut (64), a positioning plate (642) is mounted on the side of the connecting plate (641) away from the movable nut (64), and a cleaning brush (643) is mounted on the surface of the positioning plate (642).

7. The explosion-proof frequency converter cabinet according to claim 6, characterized in that: The length of the positioning plate (642) and the cleaning brush (643) is the same as the height of the heat dissipation port (2).

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