Cooling device for high-voltage frequency conversion cabinet

Abstract

The utility model relates to the technical field of high-voltage frequency conversion cabinets, in particular to a cooling device for a high-voltage frequency conversion cabinet, which comprises a cabinet main body, a rear heat dissipation grid arranged at the rear end of the outer side of the cabinet main body, side heat dissipation grids arranged at the left and right ends of the outer side of the cabinet main body, and an electric telescopic rod arranged at the left end of the outer side of the cabinet main body. A protective shell is arranged at the outer telescopic end of the electric telescopic rod, and a fan is arranged on the inner side of the protective shell. Air circulation inside and outside the cabinet body is guaranteed through the rear heat dissipation grating and the side heat dissipation grating, the rotating fan blows out hot air in the cabinet body, the hot air is discharged through the side heat dissipation grating, meanwhile, the telescopic electric telescopic rod drives the protective shell to move up and down in a reciprocating mode, and therefore the fan is driven to move up and down along the side heat dissipation grating to blow out the hot air. Through a mobile heat dissipation mode, hot air flow of the cabinet body is discharged from different positions of the cabinet body, local overheating caused by the fact that the hot air flow is concentrated to the same position of the cabinet body is avoided, uniform heat dissipation of the cabinet body is ensured, and the cooling effect of the cabinet body is guaranteed.

Description

A cooling device for high voltage frequency converter cabinet Technical Field

[0001] This utility model relates to the field of high voltage frequency converter cabinet technology, and in particular to a cooling device for high voltage frequency converter cabinets. Background Technology

[0002] A high-voltage frequency converter cabinet is an electrical device used to control and regulate the speed and operating status of a high-voltage motor. It is widely used in industries, energy, transportation and other fields to achieve energy saving, process optimization and equipment protection. The cabinet generates heat during operation, which needs to be dissipated and cooled in a timely manner.

[0003] Most high-voltage frequency converter cabinets are now designed in a relatively simple way. They either use heat dissipation grilles to ensure air circulation inside and outside the cabinet, but this has a limited cooling effect. Alternatively, they use fans to dissipate hot air from inside the cabinet, but this concentrates the hot air flow in a localized area inside the cabinet, which may cause local temperature rise and uneven heat dissipation. This can still lead to localized overheating of the frequency converter cabinet and affect the normal operation of the internal structure.

[0004] Therefore, in view of the limited heat dissipation effect of existing high-voltage frequency converter cabinets, a cooling device for high-voltage frequency converter cabinets can be designed. By using a mobile heat dissipation method, the hot air in the cabinet can be discharged from different positions of the cabinet, avoiding the hot air from concentrating in the same position of the cabinet and causing local overheating. This ensures uniform heat dissipation of the cabinet, guarantees the cooling effect of the cabinet, and thus ensures the normal use of the frequency converter cabinet. Summary of the Invention

[0005] To overcome the problem that most high-voltage frequency converter cabinets either use heat dissipation grilles to ensure air circulation inside and outside the cabinet, but the cooling effect is relatively limited, or use fans to dissipate hot air inside the cabinet, but this concentrates the hot air flow to a local area inside the cabinet, which may lead to local temperature rise, this utility model is proposed.

[0006] The technical solution of this utility model is as follows: a cooling device for a high-voltage frequency converter cabinet, comprising a cabinet body, a cabinet assembly, a rear heat dissipation grille, side heat dissipation grilles, a fan, an electric telescopic rod, a protective shell, a through groove, a lifting assembly, and a heat dissipation assembly. The cabinet assembly is provided on the outer side of the cabinet body, the rear heat dissipation grille is provided at the rear end of the outer side of the cabinet body, the side heat dissipation grilles are provided at the left and right ends of the outer side of the cabinet body, the electric telescopic rod is provided at the left end of the outer side of the cabinet body, the protective shell is provided at the outer telescopic end of the electric telescopic rod, a through groove is provided on one side of the protective shell, a lifting assembly is provided on one side of the protective shell, a fan is provided on the inner side of the protective shell, and a heat dissipation assembly is provided on one side of the fan.

[0007] Preferably, by setting up cabinet components for flexible opening and closing of the main body of the cabinet, the rear and side heat dissipation grilles ensure air circulation inside and outside the main body of the cabinet, and the through slots ensure air circulation inside and outside the protective shell. The protective shell fixes the position of the fan, and the heat dissipation components drive the fan to rotate. The rotating fan blows out the hot air inside the main body of the cabinet, allowing the hot air to be discharged through the side heat dissipation grilles. At the same time, the telescopic electric telescopic rod drives the protective shell to move up and down back and forth. The lifting components define the lifting path of the protective shell and ensure stable displacement of the protective shell. This allows the hot air to be discharged from different positions in the cabinet, avoiding the hot air from concentrating in the same position and causing local overheating. This ensures uniform heat dissipation of the cabinet and guarantees the normal operation of the frequency converter cabinet.

[0008] Preferably, the rear and side heat dissipation grilles are connected to the interior of the cabinet body, with multiple sets of through slots, and the protective shell is set on the outside of the side heat dissipation grilles.

[0009] Preferably, the cabinet assembly includes a cabinet door and a control panel. The cabinet door is located at the front end of the main body of the cabinet. One side of the cabinet door is rotatably connected to the main body of the cabinet. The control panel is located at the outer front end of the cabinet door and is electrically connected to the electric telescopic rod.

[0010] Preferably, the lifting assembly includes a fixing plate, with the fixing plate located at the top left side of the cabinet body, and the outer fixed end of the electric telescopic rod located at the bottom end of the fixing plate.

[0011] Preferably, the lifting assembly also includes a T-shaped slide groove and a T-shaped slider. Two sets of T-shaped slide grooves are symmetrically opened on the left side of the outer side of the cabinet body, and two sets of T-shaped sliders are symmetrically arranged on the bottom of the protective shell. The T-shaped sliders slide along the T-shaped slide grooves.

[0012] Preferably, the heat dissipation assembly includes a connecting plate, a drive shaft, and a drive motor. The connecting plate is located in the middle of the inner side of the protective housing, the drive shaft is located in the middle of the inner side of the connecting plate, the other end of the drive shaft is located inside the protective housing, the fan is located outside the drive shaft, and the drive motor is located outside the protective housing.

[0013] Preferably, the drive shaft is rotatably connected to the connecting plate and the protective housing, the drive motor is electrically connected to the control panel, and the output end of the drive motor is connected to the drive shaft.

[0014] The beneficial effects of this utility model are:

[0015] When cooling the frequency converter cabinet, the rear and side heat dissipation grilles are used to ensure air circulation inside and outside the cabinet body. Through-slots ensure air circulation inside and outside the protective casing. The protective casing is used to fix the fan position, and the fan rotates to blow hot air out of the cabinet body, allowing the hot air to be discharged through the side heat dissipation grilles. Simultaneously, a telescopic electric extension rod moves the protective casing up and down, thereby moving the fan up and down along the side heat dissipation grilles to blow out hot air. This addresses the issue of most high-voltage frequency converter cabinets using either heat dissipation grilles to ensure air circulation inside and outside the cabinet, but this method has limited cooling effect. Alternatively, fans can dissipate hot air from inside the cabinet, but this concentrates the hot air flow in a localized area, potentially causing localized temperature increases and uneven heat dissipation, thus ensuring the normal operation of the frequency converter cabinet. Attached Figure Description

[0016] Figure 1 shows a three-dimensional structural diagram of a cooling device for a high-voltage frequency converter cabinet according to the present invention.

[0017] Figure 2 shows a three-dimensional structural diagram of the main body of a cooling device for a high-voltage frequency converter cabinet according to this utility model.

[0018] Figure 3 shows a three-dimensional cross-sectional view of the main body of the cooling device for a high-voltage frequency converter cabinet according to this utility model.

[0019] Figure 4 shows a three-dimensional structural diagram of the heat dissipation component of a cooling device for a high-voltage frequency converter cabinet according to this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Cabinet body; 101. Cabinet door; 102. Control panel; 2. Rear ventilation grille; 3. Side ventilation grille; 4. Electric telescopic rod; 401. Fixing plate; 5. Protective shell; 501. T-shaped slide rail; 502. T-shaped slider; 6. Through groove; 7. Fan; 701. Connecting plate; 702. Drive shaft; 703. Drive motor. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Example 1

[0023] Please refer to Figures 2 and 4. This utility model provides an embodiment: a cooling device for a high-voltage frequency converter cabinet, including a cabinet body 1, a cabinet assembly, a rear heat dissipation grille 2, a side heat dissipation grille 3, a fan 7, an electric telescopic rod 4, a protective shell 5, a through groove 6, a lifting assembly, and a heat dissipation assembly. The cabinet assembly is provided on the outside of the cabinet body 1. The rear heat dissipation grille 2 is provided at the rear end of the outside of the cabinet body 1. The side heat dissipation grilles 3 are provided at the left and right ends of the outside of the cabinet body 1. The rear heat dissipation grille 2 and the side heat dissipation grilles 3 are connected to the inside of the cabinet body 1. The electric telescopic rod 4 is provided at the left end of the outside of the cabinet body 1. The protective shell 5 is provided at the telescopic end of the electric telescopic rod 4. The protective shell 5 is provided on the outside of the side heat dissipation grille 3. A through groove 6 is provided on one side of the protective shell 5. Multiple sets of through grooves 6 are provided. A lifting assembly is provided on one side of the protective shell 5. A fan 7 is provided on the inside of the protective shell 5. A heat dissipation assembly is provided on one side of the fan 7.

[0024] Please refer to Figures 1 and 2. In this embodiment, the cabinet assembly includes a cabinet door 101 and a control panel 102. The cabinet door 101 is provided at the front end of the cabinet body 1. One side of the cabinet door 101 is rotatably connected to the cabinet body 1. The control panel 102 is provided at the outer front end of the cabinet door 101. The control panel 102 is electrically connected to the electric telescopic rod 4. The cabinet body 1 can be flexibly opened and closed through the cabinet door 101. The control panel 102 sends extension and retraction commands to the electric telescopic rod 4, thereby flexibly controlling the vertical movement of the fan 7. The lifting assembly includes a fixing plate 401. The fixing plate 401 is provided at the top of the left side of the outer side of the cabinet body 1. The outer fixed end of the electric telescopic rod 4 is provided at the bottom end of the fixing plate 401. The fixing plate 401 fixes the position of the electric telescopic rod 4. The extension and retraction of the electric telescopic rod 4 drives the protective shell 5 to rise and fall synchronously.

[0025] Please refer to Figures 3 and 4. In this embodiment, the lifting assembly also includes a T-shaped slide 501 and a T-shaped slider 502. Two sets of T-shaped slides 501 are symmetrically provided on the left side of the outer side of the cabinet body 1. Two sets of T-shaped sliders 502 are symmetrically provided on the bottom of the protective shell 5. The T-shaped sliders 502 slide along the T-shaped slide 501. When the protective shell 5 is lifted, the T-shaped sliders 502 are driven to slide along the T-shaped slide 501, thereby ensuring the stable lifting of the protective shell 5.

[0026] Please refer to Figures 2 and 4. In this embodiment, the heat dissipation assembly includes a connecting plate 701, a drive shaft 702, and a drive motor 703. The connecting plate 701 is located in the middle of the inner side of the protective shell 5, and the drive shaft 702 is located in the middle of the inner side of the connecting plate 701. The drive shaft 702 is rotatably connected to the connecting plate 701 and the protective shell 5. The other end of the drive shaft 702 is located inside the protective shell 5. The fan 7 is located outside the drive shaft 702, and the drive motor 703 is located outside the protective shell 5. The drive motor 703 is electrically connected to the control panel 102. The output end of the drive motor 703 is connected to the drive shaft 702. The drive shaft 702 is rotatably connected to the connecting plate 701. The control panel 102 sends an operating command to the drive motor 703, which drives the drive shaft 702 to rotate. The rotation of the drive shaft 702 drives the fan 7 to rotate, and the rotation of the fan 7 blows out hot air from inside the cabinet body 1.

[0027] When using the high-voltage cabinet, close the cabinet door 101 to close the main body 1 of the cabinet, and use the rear heat dissipation grille 2 and the side heat dissipation grille 3 to allow air circulation inside and outside the main body 1 of the cabinet.

[0028] When cooling down, the control panel 102 sends a running command to the drive motor 703, which drives the drive shaft 702 to rotate around the connecting plate 701. The rotation of the drive shaft 702 drives the fan 7 to rotate, and the fan 7 blows out the hot air inside the cabinet body 1, so that the hot air passes through the through slot 6 of the protective shell 5 and is blown to the outside of the cabinet body 1.

[0029] At the same time, the control panel 102 sends a telescopic command to the electric telescopic rod 4 on the fixed plate 401, controlling the electric telescopic rod 4 to telescopically move the protective shell 5 up and down, so that the T-shaped slider 502 slides synchronously along the T-shaped slide groove 501, so that the hot airflow is dissipated from different positions of the side heat dissipation grille 3, reducing the internal ambient temperature of the cabinet body 1.

[0030] Example 2

[0031] Please refer to Figures 1 and 4. This utility model provides an embodiment: a cooling device for a high-voltage frequency converter cabinet, including a cabinet body 1, a cabinet assembly, a rear heat dissipation grille 2, a side heat dissipation grille 3, a fan 7, an electric telescopic rod 4, a protective shell 5, a through groove 6, a lifting assembly, and a heat dissipation assembly. The cabinet assembly is provided on the outside of the cabinet body 1. The rear heat dissipation grille 2 is provided at the rear end of the outside of the cabinet body 1. The side heat dissipation grilles 3 are provided at the left and right ends of the outside of the cabinet body 1. The rear heat dissipation grille 2 and the side heat dissipation grilles 3 are connected to the inside of the cabinet body 1. Two sets of electric telescopic rods 4 are symmetrically provided at the left and right ends of the outside of the cabinet body 1. The protective shell 5 is provided at the telescopic end of the electric telescopic rod 4. The protective shell 5 is provided on the outside of the side heat dissipation grille 3. A through groove 6 is provided on one side of the protective shell 5. Multiple sets of through grooves 6 are provided. A lifting assembly is provided on one side of the protective shell 5. A fan 7 is provided on the inside of the protective shell 5. A heat dissipation assembly is provided on one side of the fan 7.

[0032] Please refer to Figures 1 and 2. In this embodiment, the cabinet assembly includes a cabinet door 101 and a control panel 102. The cabinet door 101 is provided at the front end of the cabinet body 1. One side of the cabinet door 101 is rotatably connected to the cabinet body 1. The control panel 102 is provided at the outer front end of the cabinet door 101. The control panel 102 is electrically connected to the electric telescopic rod 4. The cabinet body 1 can be flexibly opened and closed through the cabinet door 101. The control panel 102 sends extension and retraction commands to the electric telescopic rod 4, thereby flexibly controlling the vertical movement of the fan 7. The lifting assembly includes a fixing plate 401. Two sets of fixing plates 401 are symmetrically provided at the top of the left and right ends of the outer side of the cabinet body 1. The outer fixed end of the electric telescopic rod 4 is provided at the bottom end of the fixing plate 401. The fixing plate 401 fixes the position of the electric telescopic rod 4. The extension and retraction of the electric telescopic rod 4 drives the protective shell 5 to rise and fall synchronously.

[0033] Please refer to Figures 3 and 4. In this embodiment, the lifting assembly also includes a T-shaped slide groove 501 and a T-shaped slider 502. Two sets of T-shaped slide grooves 501 are symmetrically provided on the left and right sides of the outer side of the cabinet body 1. Two sets of T-shaped sliders 502 are symmetrically provided on the bottom of the protective shell 5. The T-shaped sliders 502 are engaged and slid along the T-shaped slide grooves 501. When the protective shell 5 is lifted, the T-shaped sliders 502 are driven to slide along the T-shaped slide grooves 501, thereby ensuring the stable lifting of the protective shell 5.

[0034] Please refer to Figures 2 and 4. In this embodiment, the heat dissipation assembly includes a connecting plate 701, a drive shaft 702, and a drive motor 703. The connecting plate 701 is located in the middle of the inner side of the protective shell 5, and the drive shaft 702 is located in the middle of the inner side of the connecting plate 701. The drive shaft 702 is rotatably connected to the connecting plate 701 and the protective shell 5. The other end of the drive shaft 702 is located inside the protective shell 5. The fan 7 is located outside the drive shaft 702, and the drive motor 703 is located outside the protective shell 5. The drive motor 703 is electrically connected to the control panel 102. The output end of the drive motor 703 is connected to the drive shaft 702. The drive shaft 702 is rotatably connected to the connecting plate 701. The control panel 102 sends an operating command to the drive motor 703, which drives the drive shaft 702 to rotate. The rotation of the drive shaft 702 drives the fan 7 to rotate, and the rotation of the fan 7 blows out hot air from inside the cabinet body 1.

[0035] When using the high-voltage cabinet, close the cabinet door 101 to close the main body 1 of the cabinet, and use the rear heat dissipation grille 2 and the side heat dissipation grille 3 to allow air circulation inside and outside the main body 1 of the cabinet.

[0036] When cooling down, the control panel 102 sends an operation command to one of the drive motors 703. The drive motor 703 drives the drive shaft 702 to rotate around the connecting plate 701. The rotation of the drive shaft 702 drives the fan 7 on one side of the cabinet body 1 to rotate. The fan 7 blows out the hot air inside the cabinet body 1, so that the hot air passes through the through slot 6 of the protective shell 5 and is discharged from one side of the cabinet body 1.

[0037] At the same time, the control panel 102 sends a telescopic command to the electric telescopic rod 4 on the same side fixed plate 401, controls the electric telescopic rod 4 to telescopically move the protective shell 5 up and down, so that the T-shaped slider 502 slides synchronously along the T-shaped slide groove 501, so that the hot airflow is dissipated from different positions of the side heat dissipation grille 3, reducing the internal ambient temperature of the cabinet body 1.

[0038] In this embodiment, the single-sided fan 7 stops running after a period of time, while driving the other side fan 7 to rotate, expelling hot air from the other side of the cabinet body 1. This prevents hot airflow from continuously flowing through the inner wall of the cabinet body 1 on one side, which would cause the cabinet body 1 to overheat on one side. This is suitable for frequency converter cabinets with higher operating heat.

[0039] Through the above steps, the cabinet body 1 is flexibly opened and closed by setting the cabinet components. The rear heat dissipation grille 2 and the side heat dissipation grille 3 ensure air circulation inside and outside the cabinet body 1. The through groove 6 ensures air circulation inside and outside the protective shell 5. The protective shell 5 fixes the position of the fan 7. The heat dissipation components drive the fan 7 to rotate. The rotating fan 7 blows out the hot air inside the cabinet body 1, allowing the hot air to be discharged through the side heat dissipation grille 3. At the same time, the telescopic electric telescopic rod 4 drives the protective shell 5 to move up and down back and forth. The lifting components define the lifting path of the protective shell 5, ensuring the stable displacement of the protective shell 5. This allows the hot air from the cabinet to be discharged from different positions in the cabinet, avoiding the hot air from concentrating in the same position and causing local overheating, thus ensuring uniform heat dissipation of the cabinet.

[0040] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A cooling device for a high-voltage frequency converter cabinet, comprising a cabinet body (1), cabinet components, a rear heat dissipation grille (2), a side heat dissipation grille (3), and a fan (7), characterized in that: It also includes an electric telescopic rod (4), a protective shell (5), a through groove (6), a lifting component and a heat dissipation component. A cabinet component is provided on the outside of the cabinet body (1). A rear heat dissipation grille (2) is provided on the rear end of the outside of the cabinet body (1). Side heat dissipation grilles (3) are provided on the left and right ends of the outside of the cabinet body (1). An electric telescopic rod (4) is provided on the left end of the outside of the cabinet body (1). A protective shell (5) is provided on the telescopic end of the electric telescopic rod (4). A through groove (6) is provided on one side of the protective shell (5). A lifting component is provided on one side of the protective shell (5). A fan (7) is provided on the inside of the protective shell (5). A heat dissipation component is provided on one side of the fan (7).

2. The cooling device for a high-voltage frequency converter cabinet according to claim 1, characterized in that: The rear heat dissipation grille (2) and the side heat dissipation grille (3) are connected to the interior of the cabinet body (1). Multiple sets of through slots (6) are provided, and the protective shell (5) is set on the outside of the side heat dissipation grille (3).

3. The cooling device for a high-voltage frequency converter cabinet according to claim 1, characterized in that: The cabinet assembly includes a cabinet door (101) and a control panel (102). The front end of the cabinet body (1) is provided with a cabinet door (101). One side of the cabinet door (101) is rotatably connected to the cabinet body (1). The outer front end of the cabinet door (101) is provided with a control panel (102). The control panel (102) is electrically connected to the electric telescopic rod (4).

4. The cooling device for a high-voltage frequency converter cabinet according to claim 1, characterized in that: The lifting assembly includes a fixing plate (401), the fixing plate (401) is provided on the top of the left side of the cabinet body (1), and the outer fixed end of the electric telescopic rod (4) is provided at the bottom of the fixing plate (401).

5. A cooling device for a high-voltage frequency converter cabinet according to claim 1, characterized in that: The lifting assembly also includes a T-shaped slide (501) and a T-shaped slider (502). Two sets of T-shaped slides (501) are symmetrically provided on the left side of the outer side of the cabinet body (1), and two sets of T-shaped sliders (502) are symmetrically provided on the bottom of the protective shell (5). The T-shaped sliders (502) slide along the T-shaped slides (501).

6. A cooling device for a high-voltage frequency converter cabinet according to claim 3, characterized in that: The heat dissipation assembly includes a connecting plate (701), a drive shaft (702), and a drive motor (703). The connecting plate (701) is located in the middle of the inner side of the protective shell (5), and the drive shaft (702) is located in the middle of the inner side of the connecting plate (701). The other end of the drive shaft (702) is located inside the protective shell (5). The fan (7) is located outside the drive shaft (702), and the drive motor (703) is located outside the protective shell (5).

7. A cooling device for a high-voltage frequency converter cabinet according to claim 6, characterized in that: The drive shaft (702) is rotatably connected to the connecting plate (701) and the protective shell (5), the drive motor (703) is electrically connected to the control panel (102), and the output end of the drive motor (703) is connected to the drive shaft (702).

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