Dehumidification and heat dissipation device of low-voltage switch cabinet

Abstract

The utility model relates to the technical field of low-voltage switch cabinets, and discloses a dehumidification and heat dissipation device of a low-voltage switch cabinet, which comprises the low-voltage switch cabinet, a cabinet body internal environment control mechanism is arranged in the low-voltage switch cabinet, and a heat dissipation protective net dismounting mechanism is arranged on the back of the low-voltage switch cabinet. The cabinet body internal environment control mechanism comprises a dehumidification assembly and a heat dissipation assembly, the dehumidification assembly is arranged at the bottom of the interior of the low-voltage switch cabinet, the heat dissipation assembly is arranged at the top of the interior of the low-voltage switch cabinet, and a bottom plate is fixedly connected to the bottom of the interior of the low-voltage switch cabinet. The humidity sensor can control the air draft fan and the condenser to work, sucked moisture is condensed into water through the condenser, the water is discharged into the water collecting tank, the water can be discharged out of the low-voltage switch cabinet through the drainage pipeline and the drainage valve in the later period, and therefore it is guaranteed that the interior of the low-voltage switch cabinet is always in a proper dry environment. And normal work of internal components can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage switch cabinets, in particular to a dehumidification and heat dissipation device for a low-voltage switch cabinet. Background Art

[0002] Low-voltage switchgear is suitable for power plants, petroleum, chemical industry, metallurgy, textile, high-rise buildings and other industries. It is used for power transmission, distribution and power conversion. It is a kind of power conversion equipment used in chemical industry and other industries. Generally, power supply bureaus and substations use high-voltage cabinets, which are then stepped down by transformers to low-voltage cabinets, and then to distribution boxes for various power users.

[0003] According to a low-voltage switch cabinet with good heat dissipation effect disclosed on the patent website (authorization announcement number: CN219833502U), "The utility model discloses a low-voltage switch cabinet with good heat dissipation effect, including a switch cabinet body, a dustproof plate, a radiator, and a semiconductor cooling plate. The switch cabinet body is an open front structure with a closed structure around and at the rear. The dustproof plate is fixedly installed at the rear end of the switch cabinet body, and the radiator is fixedly installed on the inner rear wall of the switch cabinet body. The inner side wall of the switch cabinet body is fixedly provided with a mounting strip, and the semiconductor cooling plate is installed on the mounting strip. The utility model can effectively reduce the internal temperature of the low-voltage switch cabinet through this structure, avoid the influence of the internal electrical equipment of the low-voltage switch cabinet due to excessive temperature, reduce the aging speed of the internal electrical equipment of the low-voltage switch cabinet, and improve the service life of the low-voltage switch cabinet and the internal electrical equipment."

[0004] Based on the above, the applicant believes that there are the following defects:

[0005] The low-voltage switch cabinet with good heat dissipation effect includes a switch cabinet body, a dustproof plate, a radiator, and a semiconductor cooling plate. The switch cabinet realizes cooling inside the cabinet through the radiator and cooling plate arranged inside. However, after long-term use, there will be humid gas inside the switch cabinet. The moisture will corrode the components inside the cabinet, causing damage to the components, thereby affecting the overall working efficiency of the switch cabinet. Utility Model Content

[0006] The utility model aims to provide a dehumidification and heat dissipation device for a low-voltage switch cabinet to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dehumidification and heat dissipation device for a low-voltage switch cabinet, comprising a low-voltage switch cabinet, wherein an internal cabinet environment control mechanism is arranged inside the low-voltage switch cabinet, a heat dissipation protection net disassembly and assembly mechanism is arranged on the back of the low-voltage switch cabinet, the internal cabinet environment control mechanism comprises a dehumidification component and a heat dissipation component, the dehumidification component is arranged at the bottom of the low-voltage switch cabinet, the heat dissipation component is arranged at the top of the low-voltage switch cabinet, and the bottom of the low-voltage switch cabinet is fixedly connected with a bottom plate;

[0008] The dehumidification component includes a dehumidification chamber, which is opened at the bottom of the base plate, a mounting frame is installed at the center of the top of the base plate, a humidity sensor is fixedly connected to the top of the mounting frame, an exhaust fan is arranged inside the mounting frame, a wind chamber is fixedly connected to the bottom of the mounting frame, a condenser is installed at the bottom of the base plate, a collecting pipe is fixedly connected to the top of the right end of the condenser, a drain pipe is fixedly connected to the bottom of the right side of the condenser, a water collecting box is arranged at the bottom of the low-voltage switch cabinet, a drainage pipe is arranged on the right side of the water collecting box, and a drain valve is arranged on the surface of the drainage pipe. When the humidity inside the low-voltage switch cabinet is too high, the humidity sensor will control the exhaust fan and the condenser to work, and the drawn moisture will be condensed into water through the condenser and discharged into the water collecting box. Later, the water can be discharged from the low-voltage switch cabinet through the drainage pipe and the drain valve, thereby ensuring that the interior of the low-voltage switch cabinet is always in a suitable dry environment and that the internal components can work normally. The model of the humidity sensor is AM2302.

[0009] Preferably, the end of the collecting pipe away from the condenser is installed on the right side of the wind chamber, the end of the bottom of the drainage pipe away from the condenser is installed on the right end of the top of the water collecting tank, and the drainage pipe runs through the right side surface of the low-voltage switch cabinet.

[0010] Preferably, the heat dissipation component includes a heat dissipation chamber, a top plate is fixedly connected to the top of the low-voltage switch cabinet, the heat dissipation chamber is opened at the top of the top plate, a temperature sensor is fixedly connected to the right end of the top of the top plate, an air duct 1 is fixedly connected to the left end of the top of the low-voltage switch cabinet, a fan 1 is arranged inside the left end of the air duct 1, a dustproof net 1 is installed at the left end of the air duct 1, a fan 2 is arranged at the bottom of the air duct 1, a fixing frame is fixedly connected to the top of the top plate, a cooling pipe is installed on the surface of the fixing frame, a cooling water tank is fixedly connected to the top of the left end of the low-voltage switch cabinet, and a cooling Cooling water pipe, the rear end of the right side of the top plate is fixedly connected with air duct 2, the rear end of air duct 2 is provided with fan 3, and the rear end of air duct 2 is provided with dust screen 2. When the low-voltage switch cabinet is overheated, the temperature sensor controls the heat dissipation component to work, and fans 1 and 2 draw in air, which is discharged into the heat dissipation chamber for cooling through the cooling pipe, and diffuses to the inside of the low-voltage switch cabinet through the gap between the top plate and the low-voltage switch cabinet, thereby reducing the temperature inside the low-voltage switch cabinet, and the hot air is extracted and discharged through fan 3. The two work together to ensure the constant temperature inside the low-voltage switch cabinet. The model of the temperature sensor is PT100.

[0011] Preferably, the air duct one runs through the top of the low-voltage switch cabinet, the air duct two runs through the top of the back side of the low-voltage switch cabinet, and two groups of cooling pipes are provided.

[0012] Preferably, the heat dissipation protection net disassembly and assembly mechanism includes a slide rail, the slide rail is fixedly connected to the top and bottom of the back side of the low-voltage switch cabinet, the heat dissipation protection net is slidably connected inside the slide rail, handles are fixedly connected to the left and right ends of the back side of the heat dissipation protection net, plug-in blocks are fixedly connected to the top and bottom of the right side of the heat dissipation protection net, a through opening is opened on the surface of the plug-in block, a plug-in interface is opened at the right end of the slide rail, and a limit block is plugged into the through opening.

[0013] Preferably, a cabinet door is provided on the front of the low-voltage switch cabinet, an inspection door is provided on the bottom of the front of the low-voltage switch cabinet, and a component mounting rack is fixedly connected inside the low-voltage switch cabinet.

[0014] Compared with the prior art, the utility model provides a dehumidification and heat dissipation device for a low-voltage switch cabinet, which has the following beneficial effects:

[0015] The dehumidification and heat dissipation device of the low-voltage switch cabinet is equipped with a dehumidification component. When the humidity inside the low-voltage switch cabinet is too high, the humidity sensor will control the exhaust fan and the condenser to work, and the drawn moisture will be condensed into water through the condenser and discharged into the water collecting tank. Later, the water can be discharged from the low-voltage switch cabinet through the drainage pipe and the drainage valve, thereby ensuring that the interior of the low-voltage switch cabinet is always in a suitable dry environment and that the internal components can work normally.

[0016] The dehumidification and heat dissipation device of the low-voltage switch cabinet is provided with a heat dissipation component. When the inside of the low-voltage switch cabinet is overheated, the temperature sensor controls the operation of the heat dissipation component, and fans one and two draw in air, which is discharged into the heat dissipation chamber for cooling through the cooling pipe, and diffused to the inside of the low-voltage switch cabinet through the gap between the top plate and the low-voltage switch cabinet, thereby reducing the temperature inside the low-voltage switch cabinet. The hot air is drawn out and discharged through fan three, and the two work together to ensure the constant temperature inside the low-voltage switch cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the dehumidification component of the utility model structure;

[0021] Figure 4 This is a schematic diagram of the water collecting tank structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the heat dissipation component of the utility model structure;

[0023] Figure 6 This is a schematic diagram of the interior of the heat dissipation chamber of the utility model structure;

[0024] Figure 7 This is a schematic diagram of the disassembly and assembly mechanism of the heat dissipation protection net structure of the utility model;

[0025] Figure 8 It is an enlarged schematic diagram of the connection of the heat dissipation protection net of the utility model structure.

[0026] In the figure: 1. low voltage switch cabinet; 2. cabinet door; 3. inspection door; 4. component mounting rack; 5. bottom plate; 6. top plate; 7. cabinet internal environment control mechanism; 71. dehumidification component; 711. dehumidification chamber; 712. mounting frame; 713. humidity sensor; 714. exhaust fan; 715. air chamber; 716. condenser; 717. collecting pipe; 718. drain pipe; 719. water collecting tank; 7101. drain pipe; 7102. drain valve; 72. heat dissipation component; 721. heat dissipation chamber room; 7211, temperature sensor; 722, air duct one; 723, fan one; 7231, dust screen one; 724, fan two; 725, fixing frame; 726, cooling pipe; 727, cooling water tank; 728, cooling water pipe; 729, air duct two; 7201, fan three; 72011, dust screen two; 8, heat dissipation protection net disassembly and assembly mechanism; 81, slide rail; 82, heat dissipation protection net; 83, handle; 84, plug-in block; 85, through-hole; 86, plug interface; 87, limit block. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The utility model provides the following technical solutions: Embodiment 1

[0030] See also Figure 1-6 A dehumidification and heat dissipation device for a low-voltage switch cabinet includes a low-voltage switch cabinet 1, a cabinet internal environment control mechanism 7 is arranged inside the low-voltage switch cabinet 1, a heat dissipation protection net disassembly mechanism 8 is arranged on the back of the low-voltage switch cabinet 1, the cabinet internal environment control mechanism 7 includes a dehumidification component 71 and a heat dissipation component 72, the dehumidification component 71 is arranged at the bottom of the low-voltage switch cabinet 1, the heat dissipation component 72 is arranged at the top of the low-voltage switch cabinet 1, and the bottom of the low-voltage switch cabinet 1 is fixedly connected with a bottom plate 5;

[0031] The dehumidification assembly 71 includes a dehumidification chamber 711, which is opened at the bottom of the base plate 5. A mounting frame 712 is installed at the center of the top of the base plate 5. A humidity sensor 713 is fixedly connected to the top of the mounting frame 712. An exhaust fan 714 is arranged inside the mounting frame 712. A wind chamber 715 is fixedly connected to the bottom of the mounting frame 712. A condenser 716 is installed at the bottom of the base plate 5. A collecting pipe 717 is fixedly connected to the top of the right end of the condenser 716. A drain pipe 718 is fixedly connected to the bottom of the right side of the condenser 716. A water collecting tank 719 is arranged at the bottom of the low-voltage switch cabinet 1. The water collecting tank 719 A drainage pipe 7101 is provided on the right side, and a drainage valve 7102 is provided on the surface of the drainage pipe 7101. When the humidity inside the low-voltage switch cabinet 1 is too high, the humidity sensor 713 will control the exhaust fan 714 and the condenser 716 to work, and the drawn moisture will be condensed into water through the condenser 716 and discharged into the water collecting tank 719. Later, the water can be discharged from the low-voltage switch cabinet 1 through the drainage pipe 7101 and the drainage valve 7102, thereby ensuring that the interior of the low-voltage switch cabinet 1 is always in a suitable dry environment and that the internal components can work normally. The model of the humidity sensor is AM2302;

[0032] The end of the collecting pipe 717 away from the condenser 716 is installed on the right side of the wind chamber 715, the end of the bottom of the drain pipe 718 away from the condenser 716 is installed on the top right end of the water collecting tank 719, and the drain pipe 7101 runs through the right side surface of the low-voltage switch cabinet 1;

[0033] The heat dissipation assembly 72 includes a heat dissipation chamber 721, a top plate 6 is fixedly connected to the top of the low-voltage switch cabinet 1, the heat dissipation chamber 721 is opened at the top of the top plate 6, a temperature sensor 7211 is fixedly connected to the right end of the top of the top plate 6, an air duct 1 722 is fixedly connected to the left end of the top of the low-voltage switch cabinet 1, a fan 1 723 is arranged inside the left end of the air duct 1 722, a dust screen 1 7231 is installed at the left end of the air duct 1 722, a fan 2 724 is arranged at the bottom of the air duct 1 722, a fixing frame 725 is fixedly connected to the top of the top plate 6, a cooling pipe 726 is installed on the surface of the fixing frame 725, a cooling water tank 727 is fixedly connected to the top of the left end of the low-voltage switch cabinet 1, and a cooling water pipe 728 is arranged between the cooling pipe 726 and the cooling water tank 727 , the rear end of the right side of the top of the top plate 6 is fixedly connected with the second air duct 729, the rear end of the second air duct 729 is provided with the third fan 7201, and the rear end of the second air duct 729 is provided with the second dust screen 72011. When the low-voltage switch cabinet 1 is overheated, the temperature sensor 7211 controls the heat dissipation component 72 to work, and the first fan 723 and the second fan 724 draw in air, which is discharged to the heat dissipation chamber 721 for cooling through the cooling pipe 726, and diffuses into the low-voltage switch cabinet 1 through the gap between the top plate 6 and the low-voltage switch cabinet 1, thereby reducing the temperature inside the low-voltage switch cabinet 1, and the hot air is drawn out by the third fan 7201 for discharge. The two work together to ensure that the temperature inside the low-voltage switch cabinet 1 is constant. The model of the temperature sensor is PT100;

[0034] Air duct one 722 runs through the top of the low-voltage switch cabinet 1 , and air duct two 729 runs through the top of the back of the low-voltage switch cabinet 1 . Two groups of cooling pipes 726 are provided. Embodiment 2

[0035] See also Figure 1-8 , and on the basis of the first embodiment, the heat dissipation protection net disassembly mechanism 8 further comprises a slide rail 81, the slide rail 81 is fixedly connected to the top and bottom of the back of the low-voltage switch cabinet 1, a heat dissipation protection net 82 is slidably connected inside the slide rail 81, handles 83 are fixedly connected to the left and right ends of the back of the heat dissipation protection net 82, a plug-in block 84 is fixedly connected to the top and bottom of the right side of the heat dissipation protection net 82, a through hole 85 is opened on the surface of the plug-in block 84, a plug-in port 86 is opened at the right end inside the slide rail 81, and a limit block 87 is inserted inside the through hole 85;

[0036] A cabinet door 2 is arranged at the front of the low-voltage switch cabinet 1 , an inspection door 3 is arranged at the bottom of the front of the low-voltage switch cabinet 1 , and a component mounting frame 4 is fixedly connected inside the low-voltage switch cabinet 1 .

[0037] In actual operation, when this device is used, when the humidity inside the low-voltage switch cabinet 1 is too high, the humidity sensor 713 will control the exhaust fan 714 and the condenser 716 to work, and the moisture drawn in will be condensed into water through the condenser 716 and discharged into the water collecting tank 719. Later, the water can be discharged from the low-voltage switch cabinet 1 through the drainage pipe 7101 and the drainage valve 7102, thereby ensuring that the inside of the low-voltage switch cabinet 1 is always in a suitable dry environment and that the internal components can work normally. When the inside of the low-voltage switch cabinet 1 is overheated, the temperature sensor 7211 controls the heat dissipation component 72 to work, and the fan 1 723 and the fan 2 724 draw in moisture. The air is discharged into the heat dissipation chamber 721 and cooled by the cooling pipe 726. It diffuses into the low-voltage switch cabinet 1 through the gap between the top plate 6 and the low-voltage switch cabinet 1, thereby reducing the temperature inside the low-voltage switch cabinet 1. The hot air is extracted and discharged through the fan three 7201. The two work together to ensure that the temperature inside the low-voltage switch cabinet 1 is constant. During normal operation, part of the heat and moisture will be discharged from the heat dissipation protection net 82 on the back. When the heat dissipation protection net 82 needs to be removed to clean the surface dust, the limit block 87 is removed, and the heat dissipation protection net 82 can be pulled out from the inside of the slide rail 81 for maintenance. The overall disassembly and assembly are convenient and quick.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A dehumidification and heat dissipation device for a low-voltage switch cabinet, comprising a low-voltage switch cabinet (1), characterized in that: The low-voltage switch cabinet (1) is provided with a cabinet internal environment control mechanism (7), the back of the low-voltage switch cabinet (1) is provided with a heat dissipation protection net disassembly mechanism (8), the cabinet internal environment control mechanism (7) comprises a dehumidification component (71) and a heat dissipation component (72), the dehumidification component (71) is arranged at the bottom of the low-voltage switch cabinet (1), the heat dissipation component (72) is arranged at the top of the low-voltage switch cabinet (1), and the bottom of the low-voltage switch cabinet (1) is fixedly connected to a bottom plate (5); The dehumidification component (71) comprises a dehumidification chamber (711), the dehumidification chamber (711) being opened at the bottom of the base plate (5), a mounting frame (712) being installed at the top center of the base plate (5), a humidity sensor (713) being fixedly connected to the top of the mounting frame (712), an exhaust fan (714) being arranged inside the mounting frame (712), a wind chamber (715) being fixedly connected to the bottom of the mounting frame (712), a condenser (716) being installed at the bottom of the base plate (5), a collecting pipe (717) being fixedly connected to the top of the right end of the condenser (716), a drainage pipe (718) being fixedly connected to the bottom of the right side of the condenser (716), a water collecting tank (719) being arranged at the bottom of the low-voltage switch cabinet (1), a drainage pipe (7101) being arranged on the right side of the water collecting tank (719), and a drainage valve (7102) being arranged on the surface of the drainage pipe (7101).

2. The dehumidification and heat dissipation device for a low-voltage switch cabinet according to claim 1, characterized in that: One end of the collecting pipe (717) away from the condenser (716) is installed on the right side of the wind chamber (715), and one end of the bottom of the drainage pipe (718) away from the condenser (716) is installed on the top right end of the water collecting tank (719). The drainage pipe (7101) runs through the right side surface of the low-voltage switch cabinet (1).

3. The dehumidification and heat dissipation device for a low-voltage switch cabinet according to claim 1, characterized in that: The heat dissipation component (72) comprises a heat dissipation chamber (721), a top plate (6) is fixedly connected to the top of the low-voltage switch cabinet (1), the heat dissipation chamber (721) is opened at the top of the top plate (6), a temperature sensor (7211) is fixedly connected to the right end of the top of the top plate (6), an air duct (722) is fixedly connected to the left end of the top of the low-voltage switch cabinet (1), a fan (723) is arranged inside the left end of the air duct (722), a dust screen (7231) is installed at the left end of the air duct (722), and a fan (7231) is arranged at the bottom of the air duct (722). 4), a fixing frame (725) is fixedly connected to the top of the top plate (6), a cooling pipe (726) is installed on the surface of the fixing frame (725), a cooling water tank (727) is fixedly connected to the top of the left end of the low-voltage switch cabinet (1), a cooling water pipe (728) is arranged between the cooling pipe (726) and the cooling water tank (727), a second air duct (729) is fixedly connected to the rear end of the right side of the top of the top plate (6), a third fan (7201) is arranged inside the rear end of the second air duct (729), and a second dust screen (72011) is arranged at the rear end of the second air duct (729).

4. The dehumidification and heat dissipation device for a low-voltage switch cabinet according to claim 3, characterized in that: The air duct one (722) runs through the top of the low-voltage switch cabinet (1), the air duct two (729) runs through the top of the back of the low-voltage switch cabinet (1), and two groups of cooling pipes (726) are provided.

5. The dehumidification and heat dissipation device for a low-voltage switch cabinet according to claim 1, characterized in that: The heat dissipation protection net assembly and disassembly mechanism (8) comprises a slide rail (81), the slide rail (81) is fixedly connected to the top and bottom of the back side of the low-voltage switch cabinet (1), a heat dissipation protection net (82) is slidably connected inside the slide rail (81), handles (83) are fixedly connected to the left and right ends of the back side of the heat dissipation protection net (82), a plug-in block (84) is fixedly connected to the top and bottom of the right side of the heat dissipation protection net (82), a through opening (85) is provided on the surface of the plug-in block (84), a plug-in interface (86) is provided at the right end inside the slide rail (81), and a limit block (87) is plugged into the through opening (85).

6. The dehumidification and heat dissipation device for a low-voltage switch cabinet according to claim 1, characterized in that: The low-voltage switch cabinet (1) is provided with a cabinet door (2) on the front, an inspection door (3) is provided at the bottom of the front of the low-voltage switch cabinet (1), and a component mounting frame (4) is fixedly connected inside the low-voltage switch cabinet (1).

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