Outdoor high-voltage power distribution cabinet

Abstract

The outdoor high-voltage power distribution cabinet comprises a cabinet body, a ventilation mechanism and two cooling mechanisms, wherein the ventilation mechanism and the two cooling mechanisms are arranged in the cabinet body; the ventilation mechanism comprises a fan and an air duct mechanism; the air duct mechanism comprises an air duct top plate, two warm air duct side plates and two cold air duct assemblies; while the dustproof and moistureproof problems are solved, the heat dissipation performance of components is improved. A cooling mechanism is separated from a component unit, component short circuit caused by cold liquid leakage is prevented, hot air in the internal space of the cabinet body flows upwards, and high-heat air at the top is drained downwards from a warm air channel to the lower part for cooling. According to the structural design of the cold air duct assembly, the flow direction and the flow speed of cold air flow flowing in the cold air duct assembly are controlled and adjusted according to the operating temperature condition of the component unit, and normal heat dissipation of all components is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of power distribution cabinets, and in particular to an outdoor high-voltage power distribution cabinet. Background Art

[0002] The distribution cabinet is a common electrical equipment in the distribution system. According to the usage scenario, the distribution cabinet can be divided into indoor distribution cabinets and outdoor distribution cabinets. The operating environment of the outdoor distribution cabinet is dusty and humid on rainy days, so there are high requirements for the dust and moisture proof performance of the distribution cabinet. There are many components inside the distribution cabinet, which continuously generate heat during operation. The dust and moisture proof cabinet structure design is not conducive to heat dissipation. The commonly used heat dissipation method is to add a filter to the air cooling system, but the internal filter mesh of the filter is blocked due to long-term use and is not cleaned in time, affecting the air cooling effect. Summary of the invention

[0003] The purpose of the present invention is to provide an outdoor high-voltage power distribution cabinet in view of the deficiencies in the prior art.

[0004] The technical solution of the present invention to solve the above problem is: an outdoor high-voltage power distribution cabinet, comprising a cabinet body, a ventilation mechanism and two sets of cooling mechanisms arranged in the cabinet body; The ventilation mechanism includes a fan and an air duct mechanism; The air duct mechanism includes an air duct top plate, two warm air duct side plates and two sets of cold air duct assemblies; The duct top plate is arranged above the interior of the cabinet, a gap is arranged between the duct top plate and the top plate of the cabinet, a warm air inlet is arranged in the middle of the duct top plate, upper ends of two warm air duct side plates are respectively fixedly connected to the bottom of the duct top plate, a gap is arranged between the lower ends and the bottom plate of the cabinet, a warm air duct is formed between the two warm air duct side plates, and the fan is arranged in the warm air duct; Two working areas are formed between the two warm air duct side panels and the two side side panels of the cabinet, and the two groups of cold air duct assemblies are respectively arranged in the two working areas, and each group of cold air duct assemblies includes two cold air side panels and a cold air bottom panel, and the cold air bottom panel is respectively fixedly connected to the side panels of the cabinet and the warm air duct side panels on both sides, the upper ends of the two cold air side panels are fixedly connected to the air duct top panel, and the lower ends are fixedly connected to the cold air bottom panel, a first cold air duct is formed between the side panels of the cabinet and the outer cold air side panels, a second cold air duct is formed between the two cold air side panels, and a third cold air duct is formed between the inner cold air side panels and the warm air duct side panels; the cold air bottom panel is provided with a first cold air outlet, a second cold air outlet and a third cold air outlet, the first cold air outlet is connected to the first cold air duct, the second cold air outlet is connected to the second cold air duct, the third cold air outlet is connected to the third cold air duct, and the air duct top panel is provided with a warm air outlet connected to the second cold air duct; A plurality of component units are arranged in the second cold air duct, and fourth cold air outlets are respectively arranged on the cold air side panels on both sides of each component unit group; A group of cooling mechanisms is arranged below the cold air bottom plate.

[0005] Furthermore, a temperature sensor is provided on the rear plate of the cabinet at the back of each group of component units, a first air outlet control component for adjusting the ventilation size of the fourth cold air outlet is provided at each fourth cold air outlet, and a second air outlet control component for adjusting the ventilation size of the second cold air outlet is provided at the second cold air outlet; Each temperature sensor, each first air outlet control component and the two second air outlet control components are respectively connected to the controller.

[0006] Furthermore, all temperature sensors are numbered, the temperature sensors are bound to the first telescopic parts on both sides thereof, the temperature sensors are bound to the reduction motor thereunder, the controller collects the temperature information of the temperature sensors in real time, and sets the safety range value, the low danger range value and the high danger range value.

[0007] Further, when the temperatures detected by all temperature sensors are within a safe range, the second cold air outlet and the fourth cold air outlet are all opened; When only the low danger range exists, when the temperature detected by the temperature sensor is in the low danger range value, the corresponding fourth cold air vents are all opened, and when the temperature detected by other temperature sensors is less than 0.95 times the maximum value of the safety range value, the corresponding fourth cold air vents are closed, and when the temperature detected by other temperature sensors is greater than or equal to 0.95 times the maximum value of the safety range value, the corresponding fourth cold air vents are half opened; when the number of temperature sensors in each working area that are in the low danger range value exceeds half, and the temperature sensor at the bottom is in the safety range value, the second cold air vent is closed, and when the number of temperature sensors in each working area that are in the low danger range value does not exceed half, the second cold air vent is half opened; In the case of a high-risk range, when the temperature detected by the temperature sensor is in the high-risk range value, the corresponding fourth cold air vents are fully opened, and when the temperature detected by other temperature sensors is in the low-risk range value, the corresponding fourth cold air vents are half opened, and when the temperature detected by other temperature sensors is less than 0.95 times the maximum value of the safety range value, the corresponding fourth cold air vents are closed, and when the temperature detected by other temperature sensors is greater than or equal to 0.95 times the maximum value of the safety range value, the corresponding fourth cold air vents are opened by one third; when the temperature sensors in each working area are in the high-risk range value, and the temperature sensor at the bottom is in the safety range value, the second cold air vents are closed, and when the bottom temperature sensor is in the low-risk range value, it is half opened, and when it is in the high-risk range value, it is fully opened.

[0008] Furthermore, each cooling mechanism group includes a plurality of water-cooling coils, the water inlet end and the water outlet end of the water-cooling coils respectively extend outside the cabinet, and the water inlet end is located at the top and the water outlet end is located at the bottom.

[0009] The present invention has the beneficial effects: The present invention provides an outdoor high-voltage power distribution cabinet, which can improve the heat dissipation of components while solving the dust and moisture problems. The cooling mechanism is separated from the component unit to prevent the leakage of cold liquid from causing a short circuit of the components. The hot air in the internal space of the cabinet goes upward, and the high-temperature air on the top is led downward from the warm air duct to the bottom for cooling. The cold liquid flows from top to bottom in the water-cooling coil, and the hot air flows from bottom to top, constantly exchanging heat with the water-cooling coil. The higher the water-cooling coil wall temperature is, the lower the temperature is. The thermal field temperature is evenly distributed to ensure the heat exchange effect. After the high-temperature air is cooled, condensation is easy to occur, and the dehumidification device absorbs moisture in time. The structural design of the cold air duct assembly controls and adjusts the flow direction and flow rate of the cold air flow flowing in the cold air duct assembly according to the operating temperature of the component unit to ensure the normal heat dissipation of all components. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 is a structural schematic diagram of a first air outlet control component; Figure 3 is a structural schematic diagram of a second air outlet control component; In the figure: 1-cabinet, 2-fan, 3-component unit, 4-temperature sensor, 5-first air outlet control component, 6-second air outlet control component, 7-water cooling coil; 101-air duct top plate, 102-warm air duct side plate, 103-warm air inlet, 104-cold air side plate, 105-cold air bottom plate, 106-first cold air duct, 107-second cold air duct, 108-third cold air duct, 109-first cold air outlet, 110-second cold air outlet, 111-third cold air outlet, 112-warm air outlet, 113-fourth cold air outlet; 501-first windshield, 502-first telescopic member; 601-second wind deflector, 602-third wind deflector, 603-adjusting screw, 604-guide rod, 605-reduction motor. DETAILED DESCRIPTION

[0011] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0012] As shown in the figure, an outdoor high-voltage power distribution cabinet includes a cabinet body 1 and a ventilation mechanism and two sets of cooling mechanisms arranged in the cabinet body 1; The ventilation mechanism includes a fan 2 and an air duct mechanism, and the air duct mechanism includes an air duct top plate 101, two warm air duct side plates 102 and two groups of cold air duct assemblies.

[0013] The duct top plate 101 is arranged above the interior of the cabinet 1, and a gap is provided between the duct top plate 101 and the top plate of the cabinet 1, a warm air inlet 103 is provided in the middle of the duct top plate 101, and the upper ends of the two warm air duct side plates 102 are respectively fixedly connected to the bottom of the duct top plate 101, and a gap is provided between the lower ends and the bottom plate of the cabinet 1, and a warm air duct is formed between the two warm air duct side plates 102, and a fan 2 is provided in the warm air duct, with the exhaust end of the fan 2 facing upward and the outlet end facing downward, and the warm air duct is connected to the warm air inlet 103.

[0014] Two working areas are formed between the two warm air duct side panels 102 and the side panels on both sides of the cabinet 1, and two groups of cold air duct assemblies are respectively arranged in the two working areas, and each group of cold air duct assemblies includes two cold air side panels 104 and a cold air bottom plate 105, and the two sides of the cold air bottom plate 105 are respectively fixedly connected to the side panels of the cabinet 1 and the warm air duct side panels 102, and the cold air bottom plate 105 divides the working area into an upper space and a lower space, and a group of cooling mechanisms is provided in the lower space, and the upper ends of the two cold air side panels 104 are fixedly connected to the duct top plate 101, and the lower ends are fixedly connected to the cold air bottom plate 105, a first cold air duct 106 is formed between the side panels of the cabinet 1 and the outer cold air side panels 104, a second cold air duct 107 is formed between the two cold air side panels 104, and a third cold air duct 108 is formed between the inner cold air side panel 104 and the warm air duct side panel 102. The cold air bottom plate 105 is provided with a first cold air outlet 109, a second cold air outlet 110 and a third cold air outlet 111. The first cold air outlet 109 is connected to the first cold air duct 106, the second cold air outlet 110 is connected to the second cold air duct 107, the third cold air outlet 111 is connected to the third cold air duct 108, and the duct top plate 101 is provided with a warm air outlet 112 connected to the second cold air duct 107.

[0015] A plurality of component units 3 are arranged in the second cold air duct 107 . The cold air side panels 104 on both sides of each component unit 3 are respectively provided with fourth cold air ports 113 . The component units 3 are installed in the second cold air duct 107 via mounting rods.

[0016] Each cooling mechanism group includes a plurality of water cooling coils 7, the water inlet and water outlet of the water cooling coils 7 respectively extend to the outside of the cabinet 1, and the water inlet is located at the top and the water outlet is located at the bottom.

[0017] In one embodiment, a temperature sensor 4 is provided on the rear plate of the cabinet 1 at the back of each component unit 3, a first air outlet control component 5 is provided at each fourth cold air outlet 113, and a second air outlet control component 6 is provided at the second cold air outlet 110.

[0018] The first air outlet control assembly 5 includes a first air shield 501 and a first telescopic member 502. Sliding tracks are provided on both sides of the fourth cold air outlet 113. Both sides of the first air shield 501 are slidably arranged in the sliding tracks on both sides respectively. The first telescopic member 502 is fixedly arranged on the cold air side plate 104, and the telescopic end of the first telescopic member 502 is fixedly connected to the first air shield 501. The first telescopic member 502 controls the lifting and lowering of the first air shield 501, thereby controlling the size of the vent of the fourth cold air outlet 113.

[0019] The second air outlet control component 6 includes a second air shield 601, a third air shield 602, an adjusting screw 603 and a guide rod 604, the adjusting screw 603 and the guide rod 604 are respectively arranged at the front and rear ends of the second cold air outlet 110, the adjusting screw 603 is driven to rotate by a reduction motor 605, one end of the second air shield 601 is connected to the adjusting screw 603 in a forward rotation, and one end of the third air shield 602 is connected to the adjusting screw 603 in a reverse rotation, the other ends of the second air shield 601 and the second air shield 601 are respectively slidably mounted on the guide rod 604, and the reduction motor 605 controls the second air shield 601 and the third air shield 602 to move to the middle or both sides by forward and reverse rotation, thereby controlling the ventilation size of the second cold air outlet 110.

[0020] Each temperature sensor 4, each first telescopic member 502 and two reduction motors 605 are connected to the controller respectively. All temperature sensors 4 are numbered, and the temperature sensor 4 is bound to the first telescopic members 502 on both sides thereof, and the temperature sensor 4 is bound to the reduction motor 605 below it. The controller collects the temperature information of the temperature sensor 4 in real time, and sets the safety range value, the low-risk range value and the high-risk range value. The maximum value of the best operating temperature of the component is T1, the maximum value of the best operating temperature of the component exceeds 5% is T2, and the maximum value of the best operating temperature of the component decreases by 5% is T0. The safety range value is less than T1, the low-risk range value is T1-T2, and the high-risk range value is greater than T2.

[0021] In one embodiment, in the first case, when the temperatures detected by all temperature sensors 4 are within the safe range, the second cold air outlet 110 and the fourth cold air outlet 113 are all opened; The second type, when there is only a low danger range, when the temperature detected by the temperature sensor 4 is in the low danger range value, the corresponding fourth cold air outlets 113 are all opened, and the temperatures detected by other temperature sensors 4 are less than T0, and the corresponding fourth cold air outlets 113 are closed, and the temperatures detected by other temperature sensors 4 are greater than or equal to T0, and the corresponding fourth cold air outlets 113 are half opened; when the number of temperature sensors 4 in each working area that are in the low danger range value exceeds half, and the temperature sensor 4 at the bottom is in the safe range value, the second cold air outlet 110 is closed, and when the number of temperature sensors 4 in each working area that are in the low danger range value does not exceed half, the second cold air outlet 110 is half opened; The third type, when there is a high-risk range, when the temperature detected by the temperature sensor 4 is in the high-risk range value, the corresponding fourth cold air outlets 113 are fully opened, and the temperatures detected by other temperature sensors 4 are in the low-risk range values, and the corresponding fourth cold air outlets 113 are half opened, and the temperatures detected by other temperature sensors 4 are less than T0, and the corresponding fourth cold air outlets 113 are closed, and the temperatures detected by other temperature sensors 4 are greater than or equal to T0, and the corresponding fourth cold air outlets 113 are opened by one third; when the temperature sensors 4 in each working area are in the high-risk range value, and the temperature sensor 4 at the bottom is in the safe range value, the second cold air outlet 110 is closed, and when the bottom temperature sensor 4 is in the low-risk range value, it is half opened, and when it is in the high-risk range value, it is fully opened.

[0022] In one embodiment, the cabinet body 1 is provided with a cabinet door on the front baffle plate in the component unit 3 area.

[0023] In one embodiment, a dehumidification device is provided in the lower space on both sides, and the dehumidification device can be installed at the bottom of the cold air base plate 105.

[0024] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An outdoor high-voltage distribution cabinet, characterized in that: It comprises a cabinet body (1), a ventilation mechanism and two sets of cooling mechanisms arranged in the cabinet body (1); The ventilation mechanism comprises a fan (2) and an air duct mechanism; The air duct mechanism comprises an air duct top plate (101), two warm air duct side plates (102) and two sets of cold air duct assemblies; The air duct top plate (101) is arranged above the interior of the cabinet (1), a gap is provided between the air duct top plate (101) and the top plate of the cabinet (1), a warm air inlet (103) is provided in the middle of the air duct top plate (101), the upper ends of the two warm air duct side plates (102) are respectively fixedly connected to the bottom of the air duct top plate (101), a gap is provided between the lower ends and the bottom plate of the cabinet (1), a warm air duct is formed between the two warm air duct side plates (102), and the fan (2) is arranged in the warm air duct; Two working areas are formed between the two warm air duct side panels (102) and the side panels of the cabinet (1). Two groups of cold air duct assemblies are respectively arranged in the two working areas. Each group of cold air duct assemblies comprises two cold air side panels (104) and a cold air bottom plate (105). The two sides of the cold air bottom plate (105) are respectively fixedly connected to the side panels of the cabinet (1) and the warm air duct side panels (102). The upper ends of the two cold air side panels (104) are fixedly connected to the duct top plate (101), and the lower ends are fixedly connected to the cold air bottom plate (105). A first cold air duct (106) is formed between the side panels of the cabinet (1) and the outer cold air side panels (104). The two cold air side panels (1 04), a second cold air duct (107) is formed between the inner cold air side plate (104) and the warm air duct side plate (102), and a third cold air duct (108) is formed between the inner cold air side plate (104) and the warm air duct side plate (102); a first cold air outlet (109), a second cold air outlet (110) and a third cold air outlet (111) are provided on the cold air bottom plate (105); the first cold air outlet (109) is connected to the first cold air duct (106), the second cold air outlet (110) is connected to the second cold air duct (107), the third cold air outlet (111) is connected to the third cold air duct (108), and a warm air outlet (112) connected to the second cold air duct (107) is provided on the duct top plate (101); A plurality of groups of component units (3) are arranged in the second cold air duct (107), and fourth cold air outlets (113) are respectively arranged on the cold air side panels (104) on both sides of each group of component units (3); A group of cooling mechanisms is provided below the cold air bottom plate (105).

2. An outdoor high-voltage power distribution cabinet as claimed in claim 1, characterized in that: A temperature sensor (4) is provided on the rear plate of the cabinet (1) at the back of each group of component units (3); a first air outlet control component (5) for adjusting the ventilation size of the fourth cold air outlet (113) is provided at each fourth cold air outlet (113); and a second air outlet control component (6) for adjusting the ventilation size of the second cold air outlet (110) is provided at the second cold air outlet (110); Each temperature sensor (4), each first air outlet control component (5), and the two second air outlet control components (6) are respectively connected to the controller.

3. An outdoor high-voltage power distribution cabinet as claimed in claim 2, characterized in that: All temperature sensors (4) are numbered, the temperature sensors (4) are bound to the first telescopic members (502) on both sides thereof, the temperature sensors (4) are bound to the reduction motor (605) below them, and the controller collects temperature information of the temperature sensors (4) in real time and sets a safe range value, a low-risk range value, and a high-risk range value.

4. An outdoor high-voltage power distribution cabinet as claimed in claim 3, characterized in that: When the temperatures detected by all temperature sensors (4) are within a safe range, the second cold air outlet (110) and the fourth cold air outlet (113) are all opened; In the case where only the low danger range exists, when the temperature detected by the temperature sensor (4) is within the low danger range value, the corresponding fourth cold air outlet (113) is fully opened; when the temperature detected by other temperature sensors (4) is less than 0.95 times the maximum value of the safety range value, the corresponding fourth cold air outlet (113) is closed; when the temperature detected by other temperature sensors (4) is greater than or equal to 0.95 times the maximum value of the safety range value, the corresponding fourth cold air outlet (113) is half opened; when the number of temperature sensors (4) in each working area that are within the low danger range value exceeds half, and the temperature sensor (4) at the bottom is within the safety range value, the second cold air outlet (110) is closed; when the number of temperature sensors (4) in each working area that are within the low danger range value does not exceed half, the second cold air outlet (110) is half opened; In the case of a high-risk range, when the temperature detected by the temperature sensor (4) is within the high-risk range value, the corresponding fourth cold air outlet (113) is fully opened; when the temperature detected by other temperature sensors (4) is within the low-risk range value, the corresponding fourth cold air outlet (113) is half opened; when the temperature detected by other temperature sensors (4) is less than 0.95 times the maximum value of the safety range value, the corresponding fourth cold air outlet (113) is closed; when the temperature detected by other temperature sensors (4) is greater than or equal to 0.95 times the maximum value of the safety range value, the corresponding fourth cold air outlet (113) is opened one-third; when the temperature sensors (4) in each working area are within the high-risk range value and the lowest temperature sensor (4) is within the safety range value, the second cold air outlet (110) is closed; when the lowest temperature sensor (4) is within the low-risk range value, it is half opened; when it is within the high-risk range value, it is fully opened.

5. An outdoor high-voltage power distribution cabinet as claimed in claim 1, characterized in that: Each cooling mechanism group comprises a plurality of water cooling coils (7), wherein the water inlet and water outlet of the water cooling coils (7) respectively extend outside the cabinet (1), and the water inlet is located at the top and the water outlet is located at the bottom.

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