Ventilated control cabinet
By introducing a symmetrical air-cooled structure and air convection heat dissipation design into the frequency converter control cabinet, combined with temperature sensors and fan control, the problem of rising temperature inside the control cabinet is solved, achieving efficient heat dissipation and equipment stability, and preventing damage to components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINJIANG HUADIAN KASHI THERMAL POWER CO LTD
- Filing Date
- 2025-08-23
- Publication Date
- 2026-07-21
AI Technical Summary
Existing frequency converter control cabinets may suffer from component damage due to increased internal temperature during operation, and there is a lack of effective ventilation and heat dissipation solutions.
A ventilation and heat dissipation control cabinet was designed, which adopts a symmetrical right-side and left-side air-cooling structure. Combined with a cooling fan and a rear exhaust vent, it utilizes airflow to form air convection for heat dissipation. The alarm and fan are controlled by a temperature sensor and controller to ensure that the internal temperature is within a safe range.
It effectively improves the heat dissipation efficiency of the control cabinet, prevents components from overheating and being damaged, ensures stable operation of the equipment, and prevents external liquids from entering through the cover, thus enhancing the protection of the equipment.
Smart Images
Figure CN224538597U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a control cabinet used in thermal power plants. Background Technology
[0002] Variable frequency control cabinets are mainly used to adjust the operating frequency of equipment, reduce energy consumption, and enable smooth equipment startup. They also reduce the damage to motors caused by the large current generated during direct equipment startup. In addition, they come with analog input (for speed control or feedback signals), PID control, pump switching control (for constant pressure), communication function, macro function (with different parameter settings for different occasions), multi-speed, etc.
[0003] When existing frequency converter control cabinets are in continuous operation, their internal temperature will rise with the operating time and the external temperature. If the internal components work in an excessively high temperature environment for a long time, they may be damaged. Utility Model Content
[0004] The purpose of this utility model is to provide a ventilation and heat dissipation control cabinet to solve the ventilation and cooling problems mentioned in the background art.
[0005] A ventilation and heat dissipation control cabinet comprises: a control cabinet body (1), a left air-cooling structure (9) installed on the left side of the control cabinet body (1), and a right air-cooling structure (3) installed on the right side of the control cabinet body (1), a cooling fan (7) fixedly installed on the lower side of the control cabinet body (1), and a top plate (11) installed on the top of the control cabinet body (1), and an alarm (10) installed on the top plate (11); multiple sets of back exhaust vents (13) are evenly opened on the back of the control cabinet body (1), and an inner cavity (12) is opened inside the control cabinet body (1), a temperature sensor (2) is installed in the inner cavity (12), and the temperature sensor (2) is electrically connected to the controller installed in the inner cavity (12), and the alarm (10) is electrically connected to the controller.
[0006] The ventilation and heat dissipation control cabinet has a right air-cooling structure (3) and a left air-cooling structure (9) that are symmetrical about the control cabinet body (1), and both the right air-cooling structure (3) and the left air-cooling structure (9) are set in two groups.
[0007] The ventilation and heat dissipation control cabinet, wherein the left air-cooling structure (9) includes a first horizontal heat dissipation pipe (91), a vertical heat dissipation pipe (92), an air outlet pipe (93), a second horizontal heat dissipation pipe (94), an upper air outlet (95), and a lower air outlet (96).
[0008] The ventilation and heat dissipation control cabinet is described above. The vertical heat dissipation pipe (92) is installed in the side wall of the control cabinet body (1), and multiple sets of air outlet pipes (93) are evenly opened on the surface of the vertical heat dissipation pipe (92). At the same time, the gas sprayed from the right air cooling structure (3) and the left air cooling structure (9) forms air convection inside the inner cavity (12).
[0009] The ventilation and heat dissipation control cabinet is provided with a first horizontal heat dissipation pipe (91) and a second horizontal heat dissipation pipe (94) respectively installed on the vertical heat dissipation pipe (92), and the first horizontal heat dissipation pipe (91) and the second horizontal heat dissipation pipe (94) are arranged in parallel. At the same time, multiple sets of upper air inlets (95) and lower air inlets (96) are opened on the upper and lower surfaces of the first horizontal heat dissipation pipe (91) and the second horizontal heat dissipation pipe (94).
[0010] The ventilation and heat dissipation control cabinet is described above. The cooling fan (7) is fixedly mounted on the support leg (5) by two sets of fixing brackets (6), and the upper left side and the upper right side of the cooling fan (7) are respectively equipped with a left air duct (8) and a right air duct (4).
[0011] The ventilation and heat dissipation control cabinet is described above, wherein the top of the left air duct (8) is fixedly connected to the vertical heat dissipation pipe (92) on the left air-cooling structure (9), and the top of the right air duct (4) is fixedly connected to the vertical heat dissipation pipe (92) on the right air-cooling structure (3).
[0012] The ventilation and heat dissipation control cabinet has a cover plate (14) covering the outer side of the back exhaust port (13), and the length of the cover plate (14) is greater than the length of the back exhaust port (13), and the cross section of the cover plate (14) is arc-shaped. Beneficial effects
[0013] After the airflow is accelerated by the cooling fan, the gas ejected from the right and left air-cooling structures forms air convection inside the cavity, which can improve the heat dissipation efficiency of the cavity. At the same time, the air inside the cavity can be discharged through the rear exhaust vent. The outer side of the rear exhaust vent is covered with a cover plate, which can waterproof the rear exhaust vent and prevent external liquids from entering the interior of the control cabinet. Attached Figure Description
[0014] Figure 1 This is a front view schematic diagram of the structure of this utility model; Figure 2 The structure of this utility model Figure 1 Rear view; Figure 3 The structure of this utility model Figure 2 Schematic diagram of AA section in the middle; Figure 4 The structure of this utility model Figure 1 Enlarged diagram of point A in the diagram; Figure 5 The structure of this utility model Figure 1 A schematic diagram of the cross-section in the middle; Figure 6 This is a schematic diagram of the heat dissipation fan installation structure of this utility model.
[0015] Numbered in the diagram: 1. Control cabinet; 2. Temperature sensor; 3. Right air-cooled structure; 4. Right side air duct; 5. Support leg; 6. Fixture; 7. Cooling fan; 8. Left side air duct; 9. Left air-cooled structure; 91. First horizontal heat dissipation pipe; 92. Vertical heat dissipation pipe; 93. Outlet duct; 94. Second horizontal heat dissipation pipe; 95. Upper air vent; 96. Lower air vent; 10. Alarm; 11. Top plate; 12. Inner cavity; 13. Rear exhaust vent; 14. Cover plate. Detailed Implementation
[0016] This utility model provides a ventilation and heat dissipation control cabinet, including: a control cabinet body 1; a left air-cooling structure 9 is installed on the left side of the control cabinet body 1, and a right air-cooling structure 3 is installed on the right side of the control cabinet body 1. At the same time, a cooling fan 7 is fixedly installed on the lower side of the control cabinet body 1, and a top plate 11 is installed on the top of the control cabinet body 1, and an alarm 10 is installed on the top plate 11; multiple sets of rear exhaust vents 13 are evenly opened on the back of the control cabinet body 1, and an inner cavity 12 is opened inside the control cabinet body 1. A temperature sensor 2 is installed in the inner cavity 12, and the temperature sensor 2 is electrically connected to a controller installed in the inner cavity 12. At the same time, the alarm 10 is electrically connected to the controller.
[0017] When the temperature inside the inner cavity 12 is higher than the maximum temperature value set on the controller, the controller can activate the alarm 10. The alarm 10 will sound an alarm and attract the attention of the inspection personnel. At this time, the inspection personnel will turn on the switch of the cooling fan 7. The cooling fan 7 will start working, and the airflow will be ejected from the right air-cooling structure 3 and the left air-cooling structure 9 to perform air-cooling and heat dissipation work inside the inner cavity 12, ensuring the stability of the control cabinet 1 during operation.
[0018] As a preferred implementation, the right air-cooling structure 3 and the left air-cooling structure 9 are symmetrical about the control cabinet 1, and both the right air-cooling structure 3 and the left air-cooling structure 9 are set in two groups.
[0019] like Figure 1 and Figure 5 As shown: Both the right air-cooling structure 3 and the left air-cooling structure 9 are set into two groups. After being accelerated by the cooling fan 7, the airflow enters the right air-cooling structure 3 and the left air-cooling structure 9 through the right air duct 4 and the left air duct 8 in sequence, and performs air-cooling heat dissipation work on the inside of the control cabinet 1 through the right air-cooling structure 3 and the left air-cooling structure 9.
[0020] As a preferred embodiment, the left air-cooled structure 9 includes a first horizontal heat dissipation pipe 91, a vertical heat dissipation pipe 92, an air outlet 93, a second horizontal heat dissipation pipe 94, an upper air outlet 95, and a lower air outlet 96.
[0021] like Figure 1 and Figure 4 As shown: the airflow enters the first horizontal heat dissipation pipe 91 and the second horizontal heat dissipation pipe 94 through the vertical heat dissipation pipe 92, and is ejected through the upper air outlet 95 and the lower air outlet 96 to perform air cooling heat dissipation on the inner cavity 12.
[0022] As a preferred embodiment, the vertical heat dissipation pipe 92 is installed in the side wall of the control cabinet 1, and multiple sets of air outlet pipes 93 are evenly opened on the surface of the vertical heat dissipation pipe 92. At the same time, the gas ejected from the right air cooling structure 3 and the left air cooling structure 9 forms air convection inside the inner cavity 12.
[0023] like Figure 1 As shown: After the airflow is accelerated by the cooling fan 7, the gas ejected from the right air-cooling structure 3 and the left air-cooling structure 9 forms air convection inside the inner cavity 12, which can improve the heat dissipation efficiency of the inner cavity 12. At the same time, the air inside the inner cavity 12 can be discharged through the rear exhaust port 13.
[0024] In a preferred embodiment, a first horizontal heat dissipation pipe 91 and a second horizontal heat dissipation pipe 94 are respectively installed on the vertical heat dissipation pipe 92, and the first horizontal heat dissipation pipe 91 and the second horizontal heat dissipation pipe 94 are arranged in parallel. At the same time, multiple sets of upper air vents 95 and lower air vents 96 are respectively opened on the upper and lower surfaces of the first horizontal heat dissipation pipe 91 and the second horizontal heat dissipation pipe 94.
[0025] like Figure 1 and Figure 4 As shown: Multiple sets of upper air inlets 95 and lower air inlets 96 are respectively opened on the upper and lower surfaces of the first horizontal heat dissipation pipe 91 and the second horizontal heat dissipation pipe 94. When the airflow gathers inside the first horizontal heat dissipation pipe 91, it can be discharged into the control cabinet 1 through the upper air inlets 95 and lower air inlets 96 to perform air cooling heat dissipation inside the control cabinet 1.
[0026] In a preferred embodiment, the cooling fan 7 is fixedly mounted on the support leg 5 by two sets of fixing brackets 6, and the left air duct 8 and the right air duct 4 are respectively installed on the upper left and upper right sides of the cooling fan 7.
[0027] like Figure 1 As shown: A dust filter is installed at the air inlet of the cooling fan 7 to prevent dust in the air from entering the interior of the control cabinet 1 and reduce the pollution to the control cabinet 1.
[0028] In a preferred embodiment, the top of the left air duct 8 is fixedly connected to the vertical heat dissipation pipe 92 on the left air-cooling structure 9, and the top of the right air duct 4 is fixedly connected to the vertical heat dissipation pipe 92 on the right air-cooling structure 3.
[0029] In the above embodiments, the temperature sensor 2, the controller, and the alarm 10 are all commonly used components by those skilled in the art and belong to mature technologies in this field. In the above embodiments, only the temperature sensor 2, the controller, and the alarm 10 are used without changing their functions and structures. Furthermore, the temperature sensor 2, the controller, and the alarm 10 are all connected to a matching control switch via a circuit, and the connection relationship of their control circuits is not changed in this embodiment.
[0030] In a preferred embodiment, the outer side of the rear exhaust vent 13 is covered by a cover plate 14, and the length of the cover plate 14 is greater than the length of the rear exhaust vent 13, while the cross-section of the cover plate 14 is arc-shaped.
[0031] like Figure 1 and Figure 3 As shown: The outer side of the rear exhaust vent 13 is covered by a cover plate 14. The cover plate 14 is designed to waterproof the rear exhaust vent 13, making it difficult for external liquids to enter the interior of the control cabinet 1.
[0032] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A ventilation and heat dissipation control cabinet, comprising: The control cabinet (1) is characterized in that: a left air-cooling structure (9) is installed on the left side of the control cabinet (1), and a right air-cooling structure (3) is installed on the right side of the control cabinet (1). At the same time, a cooling fan (7) is fixedly installed on the lower side of the control cabinet (1), and a top plate (11) is installed on the top of the control cabinet (1). An alarm (10) is installed on the top plate (11). Multiple sets of back exhaust vents (13) are evenly opened on the back of the control cabinet (1), and an inner cavity (12) is opened inside the control cabinet (1). A temperature sensor (2) is installed in the inner cavity (12), and the temperature sensor (2) is electrically connected to the controller installed in the inner cavity (12). At the same time, the alarm (10) is electrically connected to the controller.
2. The ventilation and heat dissipation control cabinet according to claim 1, characterized in that: The right air-cooled structure (3) and the left air-cooled structure (9) are symmetrical about the control cabinet (1), and both the right air-cooled structure (3) and the left air-cooled structure (9) are set up in two groups.
3. The ventilation and heat dissipation control cabinet according to claim 1, characterized in that: The left air-cooled structure (9) includes a first horizontal heat dissipation pipe (91), a vertical heat dissipation pipe (92), an air outlet pipe (93), a second horizontal heat dissipation pipe (94), an upper air outlet (95), and a lower air outlet (96).
4. The ventilation and heat dissipation control cabinet according to claim 3, characterized in that: The vertical heat dissipation pipe (92) is installed in the side wall of the control cabinet (1), and multiple sets of air outlet pipes (93) are evenly opened on the surface of the vertical heat dissipation pipe (92). At the same time, the gas sprayed from the right air cooling structure (3) and the left air cooling structure (9) forms air convection inside the inner cavity (12).
5. A ventilation and heat dissipation control cabinet according to claim 4, characterized in that: The vertical heat dissipation pipe (92) is equipped with a first horizontal heat dissipation pipe (91) and a second horizontal heat dissipation pipe (94), and the first horizontal heat dissipation pipe (91) and the second horizontal heat dissipation pipe (94) are arranged in parallel. At the same time, multiple sets of upper air vents (95) and lower air vents (96) are opened on the upper and lower surfaces of the first horizontal heat dissipation pipe (91) and the second horizontal heat dissipation pipe (94).
6. The ventilation and heat dissipation control cabinet according to claim 1, characterized in that: The cooling fan (7) is fixedly mounted on the support leg (5) by two sets of fixing brackets (6), and the upper left side and the upper right side of the cooling fan (7) are respectively equipped with a left air duct (8) and a right air duct (4).
7. A ventilation and heat dissipation control cabinet according to claim 6, characterized in that: The top of the left air duct (8) is fixedly connected to the vertical heat dissipation pipe (92) on the left air-cooling structure (9), and the top of the right air duct (4) is fixedly connected to the vertical heat dissipation pipe (92) on the right air-cooling structure (3).
8. A ventilation and heat dissipation control cabinet according to claim 1, characterized in that: The outer side of the back exhaust vent (13) is covered by a cover plate (14), and the length of the cover plate (14) is greater than the length of the back exhaust vent (13), and the cross section of the cover plate (14) is arc-shaped.