Electrical cabinet

Abstract

The utility model discloses an electrical cabinet, which comprises a cabinet body, a heat exchanger, a circulating flow guide assembly and a water collection and drainage device, the heat exchanger is mounted in the cabinet body and is used for conducting heat in the cabinet body out of the cabinet body; the circulating flow guide assembly comprises a flow guide cover fixed on the cabinet body and a fan fixed on the flow guide cover and / or the cabinet body; the flow guide cover and the fan are both located in the cabinet body, and the fan is used for driving internal gas of the cabinet body to reach the heat exchanger through the flow guide cover to dissipate heat and form condensation; the water collecting and draining device is installed on the flow guide cover and / or the cabinet body and used for collecting condensation and draining the condensation out of the cabinet body. When the electrical cabinet is applied, the fan of the circulating flow guide assembly continuously conveys gas in the cabinet body to the heat exchanger for heat exchange and condensation through the flow guide cover, the water collecting and liquid discharging device collects condensed condensation and discharges the condensed condensation out of the cabinet body, and the condensation is prevented from harming the safety of electrical elements in the cabinet body.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-condensation of electrical cabinets, and more specifically to an electrical cabinet. Background Art

[0002] The application environment of electrical cabinets includes indoors and outdoors. In outdoor environments, the cabinet body of the electrical cabinet is generally sealed, and there are heat-generating electrical components inside the cabinet, resulting in a large temperature difference between the inside and outside of the cabinet. Condensation is easily generated inside the cabinet in cold weather, endangering the safety of the electrical components inside the cabinet.

[0003] Therefore, how to prevent condensation from endangering the safety of electrical components in the cabinet is an urgent problem to be solved by technicians in this field. Utility Model Content

[0004] In view of this, the utility model provides an electrical cabinet, whose circulation guide component can continuously transport the gas in the cabinet to the heat exchanger for heat exchange and condensation, and the water collection and drainage device can collect the condensed condensation and discharge it outside the cabinet to prevent condensation from endangering the safety of electrical components in the cabinet.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An electrical cabinet, comprising:

[0007] Cabinet;

[0008] A heat exchanger, which is installed in the cabinet and is used to transfer the heat in the cabinet to the outside of the cabinet;

[0009] A circulation guide assembly, the circulation guide assembly comprising a guide cover fixed to the cabinet, and a fan fixed to the guide cover and / or the cabinet; the guide cover and the fan are both located in the cabinet, and the fan is used to drive the internal gas of the cabinet to pass through the guide cover to the heat exchanger to dissipate heat and form condensation;

[0010] A water collecting and draining device is installed on the air guide cover and / or the cabinet body, and is used to collect the condensation and discharge it outside the cabinet body.

[0011] Optionally, in the above-mentioned electrical cabinet, the heat exchanger is fixed to the top plate of the cabinet; the air guide cover covers the heat exchanger from below, and the water collection and drainage device is installed at the bottom of the air guide cover.

[0012] Optionally, in the above electrical cabinet, the first part of the heat exchanger extends into the cabinet to absorb the heat inside the cabinet; the second part of the heat exchanger extends out of the cabinet to dissipate the heat absorbed by the first part outside the cabinet;

[0013] The heat exchanger is a needle heat exchanger, a spade-tooth heat exchanger or a plate heat exchanger.

[0014] Optionally, in the above-mentioned electrical cabinet, the air deflector has an air inlet and an air outlet, and the fan is located at the air inlet or the air outlet of the air deflector.

[0015] Optionally, in the above-mentioned electrical cabinet, a guide plate is installed at the air inlet of the air guide cover, and the guide plate is used to guide the incoming air to blow toward the heat exchanger.

[0016] Optionally, in the above electrical cabinet, the water collection and drainage device includes:

[0017] A water collecting tank, the water collecting tank is installed on the deflector cover and / or the cabinet; a moisture absorbing member is arranged in the water collecting tank, and a drainage port is opened in the water collecting tank;

[0018] A drain pipe is connected to the drain port and is used to output water out of the cabinet.

[0019] Optionally, in the above-mentioned electrical cabinet, the drain pipe includes a U-shaped portion, the inlet of the U-shaped portion is connected to the drain port through a first connecting pipe portion, and the outlet of the U-shaped portion is connected to the outside of the cabinet through a second connecting pipe portion.

[0020] Optionally, in the above-mentioned electrical cabinet, a filter is installed at the outlet of the drain pipe.

[0021] Optionally, in the above-mentioned electrical cabinet, the bottom of the water collecting tank is funnel-shaped, and the drain outlet is opened at the lowest point of the bottom of the water collecting tank.

[0022] Optionally, in the above electrical cabinet, a thermal insulation layer is fixed on the inner side and / or outer side of the cabinet body.

[0023] The utility model provides an electrical cabinet, comprising a cabinet, a heat exchanger, a circulation guide component and a water collecting and draining device; the heat exchanger is installed on the cabinet, and the heat exchanger is used to conduct the heat in the cabinet to the outside of the cabinet; the circulation guide component comprises a guide cover fixed to the cabinet, and a fan fixed to the guide cover and / or the cabinet; the guide cover and the fan are both located in the cabinet, and the fan is used to drive the internal gas of the cabinet to reach the heat exchanger through the guide cover to dissipate heat and form condensation; the water collecting and draining device is installed on the guide cover and / or the cabinet, and is used to collect condensation and discharge it outside the cabinet.

[0024] When the above electrical cabinet is used, the fan of the circulation guide component continuously transports the gas in the cabinet to the heat exchanger through the guide cover for heat exchange and condensation. The water collection and drainage device collects the condensed condensation and discharges it out of the cabinet to prevent condensation from endangering the safety of electrical components in the cabinet.

[0025] In the above-mentioned electrical cabinet, the heat exchanger can be a heat exchanger that conducts heat by using its own thermal conductivity. When the heat exchanger is installed in the cabinet, the first part can be located inside the cabinet to absorb the heat inside the cabinet, and the second part of the heat exchanger can extend outside the cabinet to dissipate the heat absorbed by the first part outside the cabinet. The heat exchanger that conducts heat by using its own thermal conductivity does not need to consume electric energy. Compared with the dehumidifier in the prior art, it can save electric energy and reduce costs, and there is no need to monitor and maintain the working status of the heat exchanger. The volume of the heat exchanger is smaller than that of the existing dehumidifier, which can save space and prevent the volume of the electrical cabinet and the difficulty of design and manufacturing from increasing.

[0026] In addition, when the above-mentioned electrical cabinet has its door opened frequently or has poor sealing, the external water vapor that enters the cabinet can be condensed and discharged in time through the heat exchanger, preventing the water vapor that enters the cabinet from directly affecting the electrical components due to the inability to be discharged, and preventing the water vapor that enters the cabinet from producing excessive condensation due to the inability to be discharged, thereby improving the safety of the electrical components inside the cabinet.

[0027] Furthermore, the above-mentioned fan can drive the circulation of gas in the cabinet, thereby condensing the moisture contained in the air in various places in the cabinet. Compared with the anti-condensation method of only setting thermal insulation materials on the cabinet in the prior art, it avoids the situation where the thermal insulation materials cannot fully cover all areas of the cabinet, resulting in serious condensation in the unprotected areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A schematic diagram of the structure of an electrical cabinet provided in an embodiment of the utility model;

[0030] Figure 2 A cross-sectional view of an electrical cabinet provided in an embodiment of the utility model;

[0031] Figure 3 A schematic diagram of the assembly of a cabinet and a heat exchanger provided in an embodiment of the utility model;

[0032] Figure 4 A three-dimensional diagram of a water collection and drainage device provided in an embodiment of the utility model;

[0033] Figure 5 An exploded view of a water collection and drainage device provided in an embodiment of the utility model;

[0034] Figure 6A schematic diagram of the three-dimensional structure of a needle heat exchanger provided in an embodiment of the utility model;

[0035] Figure 7 A schematic diagram of the three-dimensional structure of a skived-tooth heat exchanger provided in an embodiment of the utility model;

[0036] Figure 8 A schematic diagram of the three-dimensional structure of a plate heat exchanger provided in an embodiment of the utility model;

[0037] Fig. 9 A schematic diagram of the three-dimensional structure of a circulation guide assembly provided in an embodiment of the utility model;

[0038] Fig.10 A schematic diagram of the three-dimensional structure of the circulation guide assembly provided in an embodiment of the utility model from another angle;

[0039] in, Figure 1-Figure 10 middle:

[0040] Cabinet 101; heat exchanger 102; needle heat exchanger 1021; shovel-tooth heat exchanger 1022; plate heat exchanger 1023; circulation guide assembly 103; fan 131; guide cover 132; guide plate 1321; water collection and drainage device 104; water collection tank 141; drainage pipe 142; moisture absorbing member 143. DETAILED DESCRIPTION

[0041] The utility model embodiment discloses an electrical cabinet, whose circulation guide component can continuously transport the gas in the cabinet to the heat exchanger for heat exchange and condensation, and the water collection and drainage device can collect the condensed condensation and discharge it outside the cabinet to prevent the condensation from endangering the safety of electrical components in the cabinet.

[0042] 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.

[0043] See also Figure 1-Figure 10The embodiment of the utility model provides an electrical cabinet, including a cabinet 101, a heat exchanger 102, a circulation guide component 103 and a water collection and drainage device 104; the heat exchanger 102 is installed in the cabinet 101, and the heat exchanger 102 is used to transfer the heat in the cabinet 101 to the outside of the cabinet 101; the circulation guide component 103 includes a guide cover 132 fixed to the cabinet 101, and a fan 131 fixed to the guide cover 132 and / or the cabinet 101; the guide cover 132 and the fan 131 are both located in the cabinet 101, and the fan 131 is used to drive the internal gas of the cabinet 101 to reach the heat exchanger 102 through the guide cover 132 to dissipate heat and form condensation; the water collection and drainage device 104 is installed on the guide cover 132 and / or the cabinet 101, and is used to collect condensation and discharge it outside the cabinet 101.

[0044] When the above-mentioned electrical cabinet is used, the fan 131 of the circulation guide component 103 continuously transports the gas in the cabinet 101 to the heat exchanger 102 through the guide cover 132 for heat exchange and condensation. The water collection and drainage device 104 collects the condensed condensation and discharges it outside the cabinet 101 to prevent condensation from endangering the safety of electrical components in the cabinet 101.

[0045] In the above-mentioned electrical cabinet, the heat exchanger 102 can be a heat exchanger 102 that conducts heat by using its own thermal conductivity. When the heat exchanger 102 is installed in the cabinet 101, the first part of the heat exchanger 102 can be extended into the cabinet 101 to absorb the heat inside the cabinet 101, and the second part of the heat exchanger 102 can be extended out of the cabinet 101 to dissipate the heat absorbed by the first part outside the cabinet 101. The heat exchanger 102 that conducts heat by using its own thermal conductivity does not need to consume electric energy. Compared with the dehumidifier in the prior art, it can save electric energy and reduce costs, and there is no need to monitor and maintain the working state of the heat exchanger 102. The volume of the heat exchanger 102 is smaller than that of the existing dehumidifier, which can save space to prevent the volume of the electrical cabinet and the difficulty of design and manufacturing. In addition, the first part and the second part of the heat exchanger 102 extend into the cabinet 101 and the outside of the cabinet 101 respectively, which can ensure a high heat exchange efficiency and improve the dehumidification effect.

[0046] In addition, when the door of the electrical cabinet is often opened or the sealing is poor, the external water vapor that enters the cabinet 101 can be condensed and discharged in time through the heat exchanger 102, preventing the water vapor that enters the cabinet 101 from directly affecting the electrical components due to the inability to be discharged, and preventing the water vapor that enters the cabinet 101 from producing excessive condensation due to the inability to be discharged, thereby improving the safety of the electrical components inside the cabinet 101.

[0047] Furthermore, the above-mentioned fan 131 can drive the circulation of gas in the cabinet 101, thereby condensing the moisture contained in the air in various places in the cabinet 101. Compared with the anti-condensation method of only setting thermal insulation materials on the cabinet 101 in the prior art, it avoids the situation where the thermal insulation materials cannot fully cover all areas of the cabinet 101, resulting in serious condensation in the unprotected areas.

[0048] The applicant has found that condensation is easy to occur at the top plate of the cabinet 101. The temperature inside the cabinet 101 is high, and the hot and humid air rises. The humidity in the upper part of the cabinet 101 is even higher, and condensation is easy to occur. Therefore, in one embodiment, the heat exchanger 102 is set to be fixed to the top plate of the cabinet 101; the air guide cover 132 covers the heat exchanger 102 from below, and accordingly, the top end of the air guide cover 132 is open so that the heat exchanger 102 is covered through the opening; the water collection and drainage device 104 is installed at the bottom of the air guide cover 132 so that the condensation condensed by the heat exchanger can directly drip onto the water collection and drainage device 104.

[0049] The heat exchanger 102 is arranged on the top plate of the cabinet 101. The heat near the top plate is higher, and the heat can be quickly transferred to the outside of the cabinet 101, so the heat exchange effect is higher, so that the temperature difference between the part of the heat exchanger 102 located inside the cabinet 101 and the surrounding air is large, so that condensation is very likely to occur here, thereby improving the efficiency of the heat exchanger condensing water vapor to reduce the humidity inside the high electrical cabinet. In addition, when the condensation on the top plate drips, it is easy to fall directly on the electrical components in the cabinet 101, which is more harmful to the electrical components. In the solution provided in this embodiment, the heat exchanger 102 is arranged on the top plate of the cabinet 101, which eliminates the condensation on the top plate to the greatest extent and improves the safety of the electrical components in the cabinet 101.

[0050] The air deflector 132 has an air inlet and an air outlet; the fan 131 is located at the air inlet or the air outlet of the air deflector 132. Specifically, the fan 131 can be arranged to be fixed at the air outlet of the air deflector.

[0051] A guide plate 1321 is installed at the air inlet of the guide cover 132, and the guide plate 1321 is used to guide the incoming air to blow toward the heat exchanger 102 to improve the heat exchange efficiency.

[0052] The heat exchanger 102 is made of a material with a large thermal conductivity, such as aluminum alloy. The structure of the heat exchanger 102 can be set to a needle heat exchanger 1021, a shovel-tooth heat exchanger 1022 or a plate heat exchanger 1023, which is not limited in this embodiment.

[0053] The water collecting and draining device 104 includes a water collecting tank 141 and a drain pipe 142; the water collecting tank 141 is installed on the deflector 132 and / or the cabinet 101; a moisture absorbing member 143 is provided in the water collecting tank 141, and a drain port is opened in the water collecting tank 141; the drain pipe 142 is connected to the drain port for outputting water out of the cabinet 101.

[0054] In the scheme where the heat exchanger 102 is fixed to the top plate of the cabinet 101 and the air guide cover 132 covers the heat exchanger 102 from below, the bottom end of the air guide cover 132 is open for installing the water collecting tank 141. The water collecting tank 141 completely blocks the opening at the bottom end of the air guide cover 132 to prevent condensation from leaking out.

[0055] In one embodiment, the drain pipe 142 includes a U-shaped portion, the inlet of the U-shaped portion is connected to the drain port of the water collecting tank 141 through a first connecting pipe portion, and the outlet of the U-shaped portion is connected to the outside of the cabinet through a second connecting pipe portion. The U-shaped portion can store water and form a water seal to prevent external water vapor from directly entering the cabinet 101 through the drain pipe, and also reduce the heat exchange inside and outside the drain pipe 142.

[0056] The bottom of the water collecting tank 141 is funnel-shaped, and the drainage port is opened at the lowest point of the bottom of the water collecting tank 141 .

[0057] A filter is installed at the outlet of the drain pipe 142 (i.e., the outlet of the second connecting pipe portion) to prevent dust from entering the drain pipe 142. The hygroscopic member 143 can be made of a highly efficient hygroscopic material that continuously absorbs moisture. When the lower portion of the highly efficient hygroscopic material is saturated, moisture will be released into the drain pipe 142.

[0058] An insulation layer is fixed on the inner side and / or outer side of the cabinet 101; in one embodiment, the insulation layer can be provided as aluminum foil insulation cotton attached to the cabinet 101. The insulation layer can reduce the heat exchange between the cabinet 101 and the outside, so that the heat exchange inside and outside the entire cabinet 101 occurs at the heat exchanger 102 to the greatest extent, and the humidity inside the cabinet 101 is reduced through concentrated condensation through the heat exchanger 102.

[0059] The electrical cabinet provided in this embodiment has low cost, simple structure, convenient implementation, safety and reliability.

[0060] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0061] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electrical cabinet, characterized in that: include: Cabinet; A heat exchanger, which is installed in the cabinet and is used to transfer the heat in the cabinet to the outside of the cabinet; A circulation guide assembly, the circulation guide assembly comprising a guide cover fixed to the cabinet, and a fan fixed to the guide cover and / or the cabinet; the guide cover and the fan are both located in the cabinet, and the fan is used to drive the internal gas of the cabinet to pass through the guide cover to the heat exchanger to dissipate heat and form condensation; A water collecting and draining device is installed on the air guide cover and / or the cabinet body, and is used to collect the condensation and discharge it outside the cabinet body.

2. The electrical cabinet according to claim 1, characterized in that: The heat exchanger is fixed to the top plate of the cabinet; the air guide cover covers the heat exchanger from below, and the water collecting and draining device is installed at the bottom of the air guide cover.

3. The electrical cabinet according to claim 1 or 2, characterized in that: The first part of the heat exchanger extends into the cabinet to absorb the heat inside the cabinet; the second part of the heat exchanger extends out of the cabinet to dissipate the heat absorbed by the first part outside the cabinet; The heat exchanger is a needle heat exchanger, a spade-tooth heat exchanger or a plate heat exchanger.

4. The electrical cabinet according to claim 1, characterized in that: The air guide cover has an air inlet and an air outlet, and the fan is located at the air inlet or the air outlet of the air guide cover.

5. The electrical cabinet according to claim 4, characterized in that: A guide plate is installed at the air inlet of the guide cover, and the guide plate is used to guide the incoming air to blow toward the heat exchanger.

6. The electrical cabinet according to claim 1, characterized in that: The water collecting and draining device comprises: A water collecting tank, the water collecting tank is installed on the deflector cover and / or the cabinet; a moisture absorbing member is arranged in the water collecting tank, and a drainage port is opened in the water collecting tank; A drain pipe is connected to the drain port and is used to output water out of the cabinet.

7. The electrical cabinet according to claim 6, characterized in that: The drain pipe includes a U-shaped portion, an inlet of the U-shaped portion is connected to the drain port through a first connecting pipe portion, and an outlet of the U-shaped portion is connected to the outside of the cabinet through a second connecting pipe portion.

8. The electrical cabinet according to claim 6, characterized in that: A filter screen is installed at the outlet of the drain pipe.

9. The electrical cabinet according to claim 6, characterized in that: The bottom of the water collecting tank is funnel-shaped, and the drain outlet is opened at the lowest point of the bottom of the water collecting tank.

10. The electrical cabinet according to claim 1, characterized in that: A heat-insulating layer is fixed on the inner side and / or the outer side of the cabinet.

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