Electrical cabinet

Abstract

The utility model provides an electrical cabinet, which comprises a cabinet body provided with an accommodating cavity; the partition plate is arranged in the containing cavity so as to divide the containing cavity into a first chamber and a second chamber, the partition plate is provided with a first opening and a second opening, and the first chamber and the second chamber communicate with each other through the first opening and the second opening; the first fan is arranged at the first opening so as to drive gas to flow between the first chamber and the second chamber; and the heat exchanger is arranged on the first fan, and the heat exchanger can cool the containing cavity. Through the technical scheme provided by the invention, the problem that the heat dissipation effect of an electrical cabinet in the prior art is relatively poor can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical cabinets, in particular to an electrical cabinet. Background Art

[0002] In the prior art, when dissipating heat from an electrical cabinet, an air-cooled radiator is usually arranged inside the electrical cabinet, and an air inlet and an air outlet are arranged on the side wall of the electrical cabinet. The air-cooled radiator drives the cold air outside the electrical cabinet into the cabinet through the air inlet to dissipate heat from the heat source inside the electrical cabinet, and then discharges the hot air outside the electrical cabinet through the air outlet to dissipate heat from the heat generating components inside the electrical cabinet. However, the heat dissipation effect of the electrical cabinet mainly depends on the temperature of the outside air, and the temperature of the outside air is constantly changing, so it is impossible to ensure that the outside air temperature is low enough, thereby failing to ensure the heat dissipation effect of the electrical cabinet, and further failing to ensure the normal operation of the electrical cabinet. Utility Model Content

[0003] The utility model provides an electrical cabinet to solve the problem of poor heat dissipation effect of the electrical cabinet in the prior art.

[0004] The utility model provides an electrical cabinet, which comprises: a cabinet body, which has a containing cavity; a partition plate, which is arranged in the containing cavity to separate the containing cavity into a first cavity and a second cavity, and the partition plate has a first opening and a second opening, and the first cavity and the second cavity are connected to each other through the first opening and the second opening; a first fan, which is arranged at the first opening to drive gas to flow between the first cavity and the second cavity; and a heat exchanger, which is arranged on the first fan, and the heat exchanger can cool the containing cavity.

[0005] Furthermore, the first chamber has a first air duct, the second chamber has a second air duct, one end of the first air duct is connected to one end of the second air duct through a first opening, the other end of the first air duct is connected to the other end of the second air duct through a second opening, and the first fan drives the gas to flow between the first air duct and the second air duct.

[0006] Further, the partition extends in a vertical direction, and the first opening and the second opening are respectively arranged at two ends of the partition along the extending direction of the partition, the first opening is arranged at the top of the partition, and the second opening is arranged at the bottom of the partition.

[0007] Furthermore, the first fan has an air inlet side and an air outlet side that are relatively set, and the air outlet side of the first fan corresponds to the second air duct setting. The electrical cabinet also includes a second fan, and the second fan is located at the second opening. The second fan has an air inlet side and an air outlet side that are relatively set, and the air outlet side of the second fan corresponds to the first air duct setting.

[0008] Furthermore, the heat exchanger has an air inlet side and an air outlet side, and the first fan is arranged on the air outlet side of the heat exchanger.

[0009] Furthermore, the heat exchanger has a shell, the shell has a gas flow channel and a refrigerant flow channel, a plurality of fins are arranged on the shell, the plurality of fins are arranged at intervals in the gas flow channel, each fin has a heat exchange flow channel, the heat exchange flow channel of each fin is connected with the refrigerant flow channel, a liquid inlet and a liquid outlet are arranged on the shell, and the liquid inlet and the liquid outlet are evenly connected with the refrigerant flow channel.

[0010] Furthermore, the electrical cabinet also includes a water receiving tank, which is arranged below the heat exchanger and is arranged corresponding to the liquid inlet and the liquid outlet.

[0011] Furthermore, an air guide plate is provided on the air outlet side of the second fan, and the air guide plate gradually tilts upward in a direction away from the second fan.

[0012] Furthermore, a turbulent fan is provided in the first chamber to dissipate heat from the first chamber.

[0013] Furthermore, the electrical cabinet also includes a connecting member, which includes a first connecting plate and a second connecting plate, the first connecting plate is fixedly connected to the heat exchanger, and the second connecting plate is fixedly connected to the first fan and the heat exchanger.

[0014] By applying the technical solution of the utility model, a partition is arranged in the accommodating chamber, and a first opening and a second opening are arranged on the partition, a first fan is arranged at the first opening, a heat exchanger is arranged on the first fan, the first fan can drive the flow in the first chamber and the second chamber, and the heat exchanger can cool the accommodating chamber. In addition, since the accommodating chamber is a sealed space, the heat dissipation effect in the accommodating chamber is less affected by the outside air, and the accommodating chamber mainly relies on the heat exchanger for heat exchange. The staff can select the temperature of the coolant in the heat exchanger according to the heat dissipation requirements, thereby ensuring the heat dissipation effect of the electrical cabinet, and then ensuring the normal operation of the electrical cabinet, avoiding damage to the components in the electrical cabinet due to excessive temperature, and improving the service life of the electrical cabinet to avoid safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 The structure diagram of the electrical cabinet provided by the utility model is shown;

[0017] Figure 2 The front view of the electrical cabinet provided by the utility model is shown;

[0018] Figure 3 A schematic diagram of the structure of the partition, the first fan, the heat exchanger and the second fan provided by the utility model in coordination is shown;

[0019] Figure 4 A schematic structural diagram showing the cooperation of the partition, the first fan, the heat exchanger and the second fan provided by the utility model from another perspective;

[0020] Figure 5 The schematic diagram of the structure of the heat exchanger provided by the utility model is shown;

[0021] Figure 6 A structural schematic diagram showing another perspective of the heat exchanger provided by the utility model;

[0022] Figure 7 The schematic diagram of the structure of the connecting piece provided by the utility model is shown.

[0023] The above drawings include the following reference numerals:

[0024] 10. cabinet; 11. accommodating chamber; 111. first chamber; 112. second chamber;

[0025] 20. partition; 21. first opening; 22. second opening;

[0026] 30. First fan;

[0027] 40. heat exchanger; 41. shell; 411. gas flow channel; 412. fin; 413. liquid inlet; 414. liquid outlet;

[0028] 50. Second fan;

[0029] 60. Catchment trough;

[0030] 71. Wind guide plate; 72. Turbine fan; 73. Protective net;

[0031] 80. Connecting piece; 81. First connecting plate; 811. First connecting hole; 82. Second connecting plate; 821. Second connecting hole. DETAILED DESCRIPTION

[0032] 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. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0033] like Figures 1 to 4As shown, an embodiment of the utility model provides an electrical cabinet, which includes a cabinet body 10, a partition 20, a first fan 30 and a heat exchanger 40. The cabinet body 10 has a accommodating chamber 11. The partition 20 is arranged in the accommodating chamber 11 to separate the accommodating chamber 11 into a first chamber 111 and a second chamber 112. The partition 20 has a first opening 21 and a second opening 22. The first chamber 111 and the second chamber 112 are connected to each other through the first opening 21 and the second opening 22. The first fan 30 is arranged at the first opening 21 to drive the gas to flow between the first chamber 111 and the second chamber 112. The heat exchanger 40 is arranged on the first fan 30, and the heat exchanger 40 can cool down the accommodating chamber 11. Among them, the accommodating chamber 11 is a sealed space.

[0034] By applying the technical solution of the present application, the partition 20 is arranged in the accommodating chamber 11, and the partition 20 is provided with a first opening 21 and a second opening 22, the first fan 30 is arranged at the first opening 21, the heat exchanger 40 is arranged on the first fan 30, the first fan 30 can drive the flow in the first chamber 111 and the second chamber 112, and the heat exchanger 40 can cool down the accommodating chamber 11. In addition, since the accommodating chamber 11 is a sealed space, the heat dissipation effect in the accommodating chamber 11 is less affected by the outside air, and the accommodating chamber 11 mainly relies on the heat exchanger 40 for heat exchange. The staff can select the temperature of the coolant in the heat exchanger 40 according to the heat dissipation requirements, so as to ensure the heat dissipation effect of the electrical cabinet, and then ensure the normal operation of the electrical cabinet, avoid the damage of the components in the electrical cabinet due to excessive temperature, increase the service life of the electrical cabinet, and avoid safety accidents.

[0035] The first chamber 111 has a first air duct, the second chamber 112 has a second air duct, one end of the first air duct is connected to one end of the second air duct through the first opening 21, and the other end of the first air duct is connected to the other end of the second air duct through the second opening 22. The first fan 30 drives the gas to flow between the first air duct and the second air duct. In this way, when the air flows in the first chamber 111 and the second chamber 112, the air flow path is a circulation air duct, which can optimize the circulation channel and avoid interference between multiple air ducts, thereby further ensuring the heat dissipation effect of the electrical cabinet.

[0036] like Figure 4 As shown, the partition 20 extends in the vertical direction, and the first opening 21 and the second opening 22 are respectively arranged at the two ends of the partition 20 along the extension direction of the partition 20. Such an arrangement can increase the flow path of the first air duct and the second air duct, thereby ensuring the heat exchange effect between the heat exchanger 40 and the air in the electrical cabinet.

[0037] Further, the first fan 30 has an air inlet side and an air outlet side that are relatively arranged, and the air outlet side of the first fan 30 corresponds to the second air duct. The electrical cabinet also includes a second fan 50, which is located at the second opening 22. The second fan 50 has an air inlet side and an air outlet side that are relatively arranged, and the air outlet side of the second fan 50 corresponds to the first air duct. With such an arrangement, the first fan 30 can drive the gas to flow from the first air duct to the second air duct, and the second fan 50 can drive the gas to flow from the second air duct to the first air duct. The cooperation between the first fan 30 and the second fan 50 can speed up the flow speed of the air in the electrical cabinet, thereby further improving the heat dissipation effect of the electrical cabinet.

[0038] In the prior art, when the electrical cabinet is running, a large amount of heat is generated due to the thermal effect of the current, which causes the temperature of the components in the electrical cabinet to rise. Among them, the electrical cabinet mainly consists of two parts: the grid cabinet and the control cabinet. The main heating components of the grid cabinet are the frame circuit breaker, contactor and its connecting copper busbar, and the components have high temperature resistance; the control cabinet mainly generates heat from some components such as the control board, relays and UPS, which requires a lower temperature environment.

[0039] In the present application, the first chamber 111 is a power cabinet, and the second chamber 112 is a control cabinet. In addition, the first opening 21 is arranged at the top of the partition 20, and the second opening 22 is arranged at the bottom of the partition 20. In this way, the first fan 30 can drive the cold air cooled by the heat exchanger 40 to flow downward into the second air duct, and then the air flows into the first air duct through the second opening 22. In this way, the circulating air duct generated has the same movement direction as the cold and hot air inside the electrical cabinet, and the cold air can flow through the components more evenly, further improving the heat dissipation effect of the electrical cabinet. The above structure can simultaneously meet the low temperature environment requirements of the control cabinet and the heat dissipation requirements of the power cabinet, and the number of fans and heat exchangers 40 used is small, reducing the heat dissipation cost.

[0040] The heat exchanger 40 has an air inlet side and an air outlet side, the first fan 30 is arranged on the air outlet side of the heat exchanger 40, and the heat exchanger 40 is located in the second chamber 112. In the present application, the cooled gas first flows from the top of the second chamber 112 to the bottom of the second chamber 112, then flows to the bottom of the first chamber 111 through the second opening 22, and then flows to the top of the first chamber 111, and finally flows to the first opening 21 for cooling, thereby completing a cooling cycle. The first fan 30 can drive the gas to flow from the first chamber 111 to the second chamber 112. The second fan 50 can drive the gas to flow from the second chamber 112 to the first chamber 111.

[0041] Specifically, the first fan 30 is a centrifugal fan disposed in the second chamber 112 ; the second fan 50 is an axial flow fan disposed in the first chamber 111 .

[0042] like Figure 5 and Figure 6 As shown, the heat exchanger 40 has a shell 41, the shell 41 has a gas flow channel 411 and a refrigerant flow channel, a plurality of fins 412 are arranged on the shell 41, and the plurality of fins 412 are arranged at intervals in the gas flow channel 411, each fin 412 has a heat exchange flow channel, and the heat exchange flow channel of each fin 412 is connected to the refrigerant flow channel, and a liquid inlet 413 and a liquid outlet 414 are arranged on the shell 41, and the liquid inlet 413 and the liquid outlet 414 are evenly connected to the refrigerant flow channel. The coolant can enter the refrigerant flow channel through the liquid inlet 413 and then flow out through the liquid outlet 414. With such a configuration, the air can be cooled when it flows through the fins 412, thereby ensuring the heat exchange effect between the coolant and the air. At the same time, such a configuration can ensure the smoothness of gas circulation and avoid gas blockage.

[0043] Furthermore, the electrical cabinet further includes a water receiving tank 60, which is disposed below the heat exchanger 40 and is disposed corresponding to the liquid inlet 413 and the liquid outlet 414. This arrangement can prevent the coolant from dripping into the second chamber 112, thereby preventing the coolant from affecting the normal operation of the components in the second chamber 112. In addition, a water outlet is disposed at the bottom of the water receiving tank 60 to discharge the coolant in the water receiving tank 60.

[0044] Specifically, an air guide plate 71 is provided on the air outlet side of the second fan 50, and the air guide plate 71 gradually tilts upward in a direction away from the second fan 50. This arrangement facilitates air to flow from the bottom of the accommodating cavity 11 to the top of the accommodating cavity 11, further improving the air flow rate, thereby further improving the heat dissipation efficiency.

[0045] A turbulent fan 72 is provided in the first chamber 111 to dissipate heat from the first chamber 111. In this way, the turbulent fan 72 can dissipate heat again for the main heating elements in the grid cabinet, such as the copper busbar or the frame circuit breaker, to avoid the insufficient heat dissipation effect of the heat exchanger 40, thereby further improving the heat dissipation effect of the electrical cabinet.

[0046] Specifically, a protective net 73 is provided on the air inlet side of the second fan 50, and the air inlet side of the second fan 50 is provided corresponding to the second chamber 112. Such a configuration can protect the staff from being scratched when the staff operates the components in the second chamber 112, thereby ensuring the safety of the staff.

[0047] like Figure 7As shown, the electrical cabinet further includes a connector 80, and the connector 80 includes a first connector plate 81 and a second connector plate 82. The first connector plate 81 is fixedly connected to the heat exchanger 40, and the second connector plate 82 is fixedly connected to the first fan 30 and the heat exchanger 40. The first connector plate 81 is provided with a plurality of first connecting holes 811, and the first connector plate 81 is fixedly connected to the heat exchanger 40 through the first connecting holes 811. The second connector plate 82 is provided with a plurality of second connecting holes 821, and the second connector plate 82 is connected to the first fan 30 and the heat exchanger 40 through the second connecting holes 821. With such a configuration, the structure is simple, and it is convenient to fix the first fan 30 on the heat exchanger 40. Moreover, in the present application, the electrical cabinet includes two connectors 80, and the two connectors 80 are respectively arranged at the upper and lower ends of the first fan 30. With such a configuration, the stability of the first fan 30 being fixed on the heat exchanger 40 can be ensured, thereby ensuring the reliability of the operation of the first fan 30 and the heat exchanger 40.

[0048] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0049] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0050] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0051] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0052] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0053] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An electrical cabinet, characterized in that: The electrical cabinet comprises: A cabinet (10), wherein the cabinet (10) has a receiving cavity (11); a partition (20) disposed in the accommodating chamber (11) to separate the accommodating chamber (11) into a first chamber (111) and a second chamber (112); the partition (20) having a first opening (21) and a second opening (22); the first chamber (111) and the second chamber (112) being in communication with each other through the first opening (21) and the second opening (22); a first fan (30) disposed at the first opening (21) to drive gas to flow between the first chamber (111) and the second chamber (112); A heat exchanger (40) is arranged on the first fan (30), and the heat exchanger (40) is capable of cooling the accommodating chamber (11).

2. The electrical cabinet according to claim 1, characterized in that: The first chamber (111) has a first air duct, and the second chamber (112) has a second air duct. One end of the first air duct is connected to one end of the second air duct through the first opening (21), and the other end of the first air duct is connected to the other end of the second air duct through the second opening (22). The first fan (30) drives gas to flow between the first air duct and the second air duct.

3. The electrical cabinet according to claim 1, characterized in that: The partition plate (20) extends in a vertical direction, and the first opening (21) and the second opening (22) are respectively arranged at two ends of the partition plate (20) along the extension direction of the partition plate (20).

4. The electrical cabinet according to claim 2, characterized in that: The first fan (30) has an air inlet side and an air outlet side that are arranged opposite to each other, and the air outlet side of the first fan (30) is arranged corresponding to the second air duct. The electrical cabinet also includes a second fan (50), and the second fan (50) is located at the second opening (22). The second fan (50) has an air inlet side and an air outlet side that are arranged opposite to each other, and the air outlet side of the second fan (50) is arranged corresponding to the first air duct.

5. The electrical cabinet according to claim 2, characterized in that: The heat exchanger (40) has an air inlet side and an air outlet side, and the first fan (30) is arranged on the air outlet side of the heat exchanger (40).

6. The electrical cabinet according to claim 1, characterized in that: The heat exchanger (40) has a shell (41), the shell (41) has a gas flow channel (411) and a refrigerant flow channel, the shell (41) is provided with a plurality of fins (412), the plurality of fins (412) are arranged at intervals in the gas flow channel (411), each of the fins (412) has a heat exchange flow channel, the heat exchange flow channel of each fin (412) is connected to the refrigerant flow channel, the shell (41) is provided with a liquid inlet (413) and a liquid outlet (414), the liquid inlet (413) and the liquid outlet (414) are evenly connected to the refrigerant flow channel.

7. The electrical cabinet according to claim 6, characterized in that: The electrical cabinet further comprises a water receiving trough (60), wherein the water receiving trough (60) is arranged below the heat exchanger (40), and the water receiving trough (60) is arranged corresponding to the liquid inlet (413) and the liquid outlet (414).

8. The electrical cabinet according to claim 4, characterized in that: An air guide plate (71) is provided on the air outlet side of the second fan (50), and the air guide plate (71) gradually tilts upward in a direction away from the second fan (50).

9. The electrical cabinet according to claim 1, characterized in that: A turbulent fan (72) is arranged in the first chamber (111) to dissipate heat from the first chamber (111).

10. The electrical cabinet according to claim 4, characterized in that: The electrical cabinet further comprises a connecting member (80), wherein the connecting member (80) comprises a first connecting plate (81) and a second connecting plate (82), wherein the first connecting plate (81) is fixedly connected to the heat exchanger (40), and the second connecting plate (82) is fixedly connected to the first fan (30) and the heat exchanger (40).

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