Electrical cabinet

Abstract

The utility model discloses an electrical cabinet. The electrical cabinet comprises at least one first fluid driving device; the cabinet body comprises an accommodating space for accommodating electronic devices; the heat dissipation device is arranged outside the containing space, the heat dissipation device comprises at least one first channel and at least one second channel, the two ends of the first channel communicate with the containing space, and the second channel communicates with the outside; the first fluid driving device can drive the heat dissipation medium to circularly flow between the containing space and the first channel. According to the electrical cabinet provided by the embodiment of the utility model, heat dissipation can be carried out by driving the heat dissipation medium to circularly flow, and the protection effect is ensured.

Description

Technical Field

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

[0002] Electrical equipment such as copper busbars, electrical switches, fuses, relays, circuit breakers, etc. in electrical cabinets will generate a lot of heat when working. With the development of the electronics industry, the integration and power consumption of electronic devices in electrical cabinets have been further improved, and the heat dissipation requirements of electrical equipment in electrical cabinets have become higher and higher.

[0003] At present, electrical cabinets usually use horizontal flow heat exchangers for heat dissipation, which has low heat dissipation efficiency. In addition, since the electronic devices in the electrical cabinet generate heat during operation, laminar flow will occur in the electrical cabinet, that is, the high-temperature gas in the electrical cabinet rises to the upper area of ​​the electrical cabinet, and the low-temperature gas is in the lower area of ​​the electrical cabinet. The laminar flow phenomenon will affect the heat dissipation effect of the electronic devices in the upper area of ​​the electrical cabinet, making the heat dissipation in the upper and lower areas of the electrical cabinet uneven, making it difficult to meet the heat dissipation requirements. Utility Model Content

[0004] The embodiment of the utility model provides an electrical cabinet, which can dissipate heat and ensure the protection effect by driving the circulation of the heat dissipation medium.

[0005] In the first aspect, an embodiment of the utility model provides an electrical cabinet, which includes: at least one first fluid driving device; a cabinet body, which includes a storage space for accommodating electronic devices; at least one heat dissipation device, which is arranged outside the storage space, and the heat dissipation device includes at least one first channel and at least one second channel, both ends of the first channel are connected to the storage space, and the second channel is connected to the outside; the first fluid driving device can drive the heat dissipation medium to circulate between the storage space and the first channel.

[0006] Optionally, the electrical cabinet includes at least one partition, which is arranged in the accommodating space and divides the accommodating space into at least two chambers connected to each other, and at least one first fluid driving device is arranged in the accommodating space and / or the heat dissipation device; the first fluid driving device can drive the heat dissipation medium to flow through the first channel and different chambers, so that the heat dissipation medium circulates between the heat dissipation device and the accommodating space.

[0007] Optionally, the partition includes at least one first partition, the first partition is provided with a guide port, the chambers on both sides of the first partition are connected through the guide port, and the first fluid driving device can drive the heat dissipation medium in the accommodating space to flow through different chambers through the guide port.

[0008] Optionally, there are multiple chambers, which are interconnected through guide ports, wherein at least some of the chambers are connected to the first channel of the heat dissipation device, and at least one first fluid driving device is arranged in the chamber and / or the heat dissipation device.

[0009] Optionally, the electrical cabinet includes at least two heat dissipation devices, the partition includes at least one second partition, the at least two heat dissipation devices are respectively arranged on the outer surface of the cabinet body, the chambers on both sides of the second partition are spaced apart from each other and are respectively connected to the first channels of the at least two heat dissipation devices; the first fluid driving device can drive the heat dissipation medium to circulate between the chamber and the first channel through the first channels of different heat dissipation devices.

[0010] Optionally, there are multiple chambers, the multiple chambers are spaced apart from each other, each chamber is connected to the first channels of at least two heat dissipation devices respectively, and at least one first fluid driving device is arranged in the chamber and / or the heat dissipation device.

[0011] Optionally, the partition also includes at least one third partition and at least one fourth partition. The third partition and the fourth partition are cross-linked or spaced apart from each other. The third partition is provided with a guide port. The chambers on both sides of the third partition are connected through the guide port. The chambers on both sides of the fourth partition are spaced apart from each other and respectively connected to the first channels of at least two heat dissipation devices.

[0012] Optionally, the heat dissipation device includes multiple first heat dissipation layers and multiple second heat dissipation layers, the first heat dissipation layers and the second heat dissipation layers are alternately stacked and thermally coupled, the first heat dissipation layers are hollow and respectively connected to the first channel and the accommodating space, and the second heat dissipation layer includes at least one second channel.

[0013] Optionally, the heat dissipation device further includes an isolation layer, which is thermally coupled to the first heat dissipation layer and the second heat dissipation layer, and the first channel is arranged in the isolation layer and is spaced apart from the second channel.

[0014] Optionally, the electrical cabinet further comprises at least one second fluid driving device, which can drive the heat dissipation medium outside the cabinet to flow into the second channel, so that the heat dissipation medium in the second channel can absorb the heat in the first channel.

[0015] The electrical cabinet of the utility model embodiment has a accommodating space for accommodating electronic devices, and the accommodating space is connected to the heat dissipation device outside the cabinet. The first fluid driving device can drive the heat dissipation medium to circulate in the accommodating space and the first channel of the heat dissipation device, so that the heat emitted by the electronic devices in the accommodating space during operation can be absorbed by the heat dissipation medium and dissipated to the outside through the heat dissipation device. At the same time, the external heat dissipation medium can absorb the heat transmitted from the first channel through the second channel to improve the heat dissipation efficiency of the heat dissipation device. By adopting a design of driving the heat dissipation medium to circulate between the accommodating space and the first channel, the electrical cabinet of the utility model embodiment can isolate the electronic devices in the electrical cabinet from the external environment while dissipating heat, thereby ensuring the protective effect of the electrical cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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 the structures shown in these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the first embodiment of the electrical cabinet of the utility model;

[0018] Figure 2 It is a cross-sectional view of a first embodiment of an electrical cabinet of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the first fluid driving device of the first embodiment of the electrical cabinet of the utility model;

[0020] Figure 4 It is a cross-sectional view of a first embodiment of an electrical cabinet of the utility model;

[0021] Figure 5 This is a structural schematic diagram of a heat dissipation device of an embodiment of an electrical cabinet of the utility model;

[0022] Figure 6 A top view of a heat dissipation device of an embodiment of an electrical cabinet of the utility model;

[0023] Figure 7 It is a cross-sectional view of a second embodiment of the electrical cabinet of the utility model;

[0024] Figure 8 It is a cross-sectional view of a third embodiment of the electrical cabinet of the utility model.

[0025] Description of Figure Numbers:

[0026] 100-electrical cabinet; 110-first fluid driving device; 120-cabinet; 130-heat dissipation device; 131-first channel; 132-second channel; 133-first heat dissipation layer; 134-second heat dissipation layer; 135-isolating layer; 141-first partition; 142-second partition; 143-third partition; 144-fourth partition; 145-flow guide port; 150-second fluid driving device; 200-electronic device; X-first direction; Y-second direction.

[0027] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] 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 of 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.

[0029] The embodiment of the utility model provides an electrical cabinet, which can dissipate heat and ensure the protection effect by driving the circulation of the heat dissipation medium.

[0030] like Figures 1 to 3 As shown, in the first embodiment of the utility model, the electrical cabinet 100 includes: at least one first fluid driving device 110, a cabinet body 120 and at least one heat dissipation device 130, the cabinet body 120 includes a receiving space for receiving the electronic device 200; the heat dissipation device 130 is arranged outside the receiving space, and the heat dissipation device 130 includes at least one first channel 131 and at least one second channel 132, both ends of the first channel 131 are connected to the receiving space, and the second channel 132 is connected to the outside; the first fluid driving device 110 can drive the heat dissipation medium to circulate between the receiving space and the first channel 131.

[0031] In the first embodiment of the electrical cabinet 100 of the utility model, the first fluid driving device 110 drives the heat dissipation medium to circulate between the accommodating space of the cabinet body 120 and the first channel 131 of the heat dissipation device 130. When the heat dissipation medium flows in the accommodating space, it can absorb the heat generated by the electronic device 200 in the accommodating space. When the heat dissipation medium flows into the first channel 131 of the heat dissipation device 130, it can conduct the absorbed heat to the outside, thereby realizing heat dissipation of the electronic device 200.

[0032] The electrical cabinet 100 in the embodiment of the utility model can adopt liquid cooling or air cooling. When liquid cooling is adopted, the heat dissipation medium includes liquid heat dissipation medium such as water and liquid metal; when air cooling is adopted, the heat dissipation medium includes gas heat dissipation medium such as air.

[0033] The electrical cabinet 100 in the embodiment of the utility model adopts air cooling to dissipate heat. The first fluid driving device 110 is a cooling fan. While driving the cooling medium to circulate, the first fluid driving device 110 can also stir the cooling medium in the cabinet 120 to prevent laminar flow in the cabinet 120, thereby ensuring that the electronic devices 200 in the upper and lower areas of the electrical cabinet 100 can be evenly cooled.

[0034] The electrical cabinet 100 of the embodiment of the utility model has a accommodating space for accommodating electronic devices 200, and the accommodating space is connected to the heat dissipation device 130 outside the cabinet body 120. The first fluid driving device 110 can drive the heat dissipation medium to circulate in the accommodating space and the first channel 131 of the heat dissipation device 130, so that the heat emitted by the electronic devices 200 in the accommodating space during operation can be absorbed by the heat dissipation medium and dissipated to the outside through the heat dissipation device 130. At the same time, the external heat dissipation medium can absorb the heat transferred from the first channel 131 through the second channel 132 to improve the heat dissipation efficiency of the heat dissipation device 130. By adopting a design of driving the heat dissipation medium to circulate between the accommodating space and the first channel 131, the electrical cabinet 100 of the embodiment of the utility model can isolate the electronic devices 200 in the electrical cabinet 100 from the external environment while dissipating heat, thereby ensuring the protective effect of the electrical cabinet 100.

[0035] Optionally, the electrical cabinet 100 includes at least one partition, which is arranged in the accommodating space and divides the accommodating space into at least two chambers connected to each other, and at least one first fluid driving device 110 is arranged in the accommodating space and / or the heat dissipation device 130; the first fluid driving device 110 can drive the heat dissipation medium to flow through the first channel 131 and different chambers, so that the heat dissipation medium circulates between the heat dissipation device 130 and the accommodating space.

[0036] In the embodiment of the utility model, the accommodation space is divided into different chambers by a partition and the different chambers are connected, so that the heat dissipation airflow can flow according to the arrangement order of the chambers to form a heat dissipation airflow duct. When the first fluid driving device 110 drives the heat dissipation airflow to flow in different chambers, it can absorb the heat generated by the electronic device 200 in the corresponding chamber, and after the heat dissipation airflow flows into the first channel 131 of the heat dissipation device 130, the absorbed heat is dissipated to the outside.

[0037] Further, the partition includes at least one first partition 141, and the first partition 141 is provided with a guide port 145. The chambers on both sides of the first partition 141 are connected through the guide port 145, and the first fluid driving device 110 can drive the heat dissipation medium in the accommodating space to flow through different chambers through the guide port 145. The guide port 145 can be a through hole opened inside the first partition 141, or a notch cut out of the edge of the first partition 141, or a channel formed between the two when the area of ​​the first partition 141 is smaller than the cross section of the chamber.

[0038] The first chamber and the second chamber are partially isolated by the first partition 141, and the guide port 145 is arranged at one end of the first partition 141 away from the heat dissipation device 130, so that the heat dissipation airflow can pass through all the electronic devices 200 in the cabinet 120 after entering the cabinet 120, thereby maximizing the heat dissipation efficiency.

[0039] like Figures 2 to 4 As shown, when the first fluid driving device 110 is disposed in the first chamber, the first fluid driving device 110 can drive the heat dissipation airflow from the guide port 145 to the first channel 131 of the heat dissipation device 130; when the first fluid driving device 110 is disposed in the second chamber, the first fluid driving device 110 can drive the heat dissipation airflow from the first channel 131 of the heat dissipation device 130 to the guide port 145. Alternatively, the first fluid driving device 110 is disposed in both the first chamber and the second chamber to drive the flow of the heat dissipation airflow respectively.

[0040] The first fluid driving device 110 controls the flow direction of the heat dissipation airflow in the first chamber and the second chamber to ensure that the heat dissipation airflow can circulate in the first chamber, the second chamber and the first channel 131 of the heat dissipation device 130 .

[0041] In the embodiment of the utility model, the flow direction of the heat dissipation medium is not limited, and the first fluid driving device 110 can drive the heat dissipation medium to circulate clockwise or counterclockwise along the accommodation space and the first channel 131. A vent is provided between the cabinet 120 and the heat dissipation medium, and the accommodation space is connected to the first channel 131 of the heat dissipation medium through the vent. The number of the vent can be one or more, and the shape of the vent can be rectangular, circular, triangular, etc.

[0042] Optionally, there are multiple chambers, which are interconnected through the guide port 145, wherein at least some of the chambers are connected to the first channel 131 of the heat dissipation device 130, and at least one first fluid driving device 110 is arranged in the chamber and / or the heat dissipation device 130.

[0043] In the embodiment of the utility model, when there are multiple first partitions 141, the accommodation space is divided into multiple chambers by the first partitions 141, each chamber is connected to the adjacent chamber through the guide port 145, and the chamber adjacent to the heat sink 130 is connected to the first channel 131 of the heat sink 130. The first fluid driving device 110 can drive the heat dissipation airflow to flow through all the chambers through the guide port 145, and finally flow into the first channel 131 of the heat sink 130, so as to achieve heat dissipation of the electronic device 200.

[0044] The first fluid driving device 110 can be vertically or inclined relative to the horizontal plane. When the first fluid driving device 110 is inclined, it can drive the heat dissipation airflow to circulate while stirring the air in the chamber to prevent laminar flow.

[0045] Optionally, a fairing is provided around the first fluid driving device 110. When the first fluid driving device 110 is arranged vertically relative to the horizontal plane, the first fluid driving device 110 can guide the airflow in the chamber to the first fluid driving device 110 through the fairing, thereby stirring the air in the chamber. The fairing can be provided around the air outlet or the air inlet of the first fluid driving device 110 to achieve a flow guiding effect.

[0046] Furthermore, a plurality of inclined first fluid driving devices 110 are arranged in the accommodating space, and the first fluid driving devices 110 are directed toward the guide port 145 or the first channel 131. The plurality of inclined first fluid driving devices 110 are used to enhance the guiding and stirring effects on the heat dissipation medium. Alternatively, the guiding and stirring effects on the heat dissipation medium can also be enhanced by increasing the power of the first fluid driving device 110.

[0047] Figure 7 This is a cross-sectional view of the second embodiment of the electrical cabinet 100 of the present invention. Part of the structure of the second embodiment is the same as that of the first embodiment, and the differences between the two will be described below, and the similarities will not be described in detail.

[0048] In the second embodiment of the utility model, the electrical cabinet 100 includes at least two heat dissipation devices 130, the partition includes at least one second partition 142, and the at least two heat dissipation devices 130 are respectively arranged on the outer surface of the cabinet body 120, and the chambers on both sides of the second partition 142 are spaced apart from each other and respectively connected to the first channels 131 of at least two heat dissipation devices 130; the first fluid driving device 110 can drive the heat dissipation medium to circulate between the chamber and the first channel 131 through the first channels 131 of different heat dissipation devices 130.

[0049] The chambers on both sides of the second partition plate 142 in the second embodiment of the present invention are connected to at least two heat dissipation devices 130 , and the heat dissipation airflow generated by the first fluid driving device 110 can circulate between different chambers through the heat dissipation devices 130 on both sides of the electrical cabinet 100 .

[0050] The heat dissipation airflow in the electrical cabinet 100 of the second embodiment of the utility model can pass through the heat dissipation device 130 at least twice during one cycle, that is, after passing through the chamber on one side of the second partition plate 142, it is cooled once through the heat dissipation device 130 on one side and flows into the chamber on the other side through the first channel 131, and after passing through the chamber on the other side, it enters the heat dissipation device 130 on the other side for a second heat dissipation and flows back to the initial chamber through the first channel 131, completing one cycle. The electrical cabinet 100 of the second embodiment of the utility model speeds up the heat dissipation frequency of the electrical cabinet 100 and the circulation speed of the heat dissipation airflow by respectively arranging the heat dissipation devices 130 on both sides of the cabinet body 120 and increasing the number of the first fluid driving devices 110, thereby improving the heat dissipation efficiency of the electrical cabinet 100.

[0051] Furthermore, there are multiple chambers, which are spaced apart from each other, each chamber is connected to the first channels 131 of at least two heat dissipation devices 130 , and at least one first fluid driving device 110 is disposed in the chamber and / or the heat dissipation device 130 .

[0052] When there are multiple second partitions 142, the second partitions 142 divide the accommodating space into multiple layers of chambers. The first fluid driving device 110 can drive the heat dissipation airflow to flow into the first channel 131 of the heat dissipation device 130 after passing through a chamber, and flow into the second chamber adjacent to the first chamber through the first channel 131. After passing through the second chamber, it flows into the third chamber adjacent to the second chamber through the first channel 131 of the heat dissipation device 130 on the other side, and the cycle repeats until it passes through all chambers to complete the heat dissipation of all electronic devices 200 in the cabinet 120.

[0053] Figure 8 This is a cross-sectional view of the third embodiment of the electrical cabinet 100 of the present utility model. Part of the structure of the third embodiment is the same as that of the first embodiment, and the differences between the two will be described below, and the similarities will not be described in detail.

[0054] In the third embodiment of the utility model, the partition also includes at least one third partition 143 and at least one fourth partition 144. The third partition 143 and the fourth partition 144 are cross-linked or spaced apart from each other. The third partition 143 is provided with a guide port 145. The chambers on both sides of the third partition 143 are connected through the guide port 145. The chambers on both sides of the fourth partition 144 are spaced apart from each other and are respectively connected to the first channels 131 of at least two heat dissipation devices 130.

[0055] The first fluid driving device 110 can drive the heat dissipation airflow to flow through the chambers on both sides of the third partition plate 143 through the guide port 145 of the third partition plate 143, and the heat dissipation airflow can flow into the chamber on the other side of the fourth partition plate 144 through the first channel 131 of the heat dissipation device 130. On the other side of the fourth partition plate 144, the first fluid driving device 110 drives the heat dissipation airflow to flow through the chambers on both sides of the third partition plate 143 through the guide port 145 of the third partition plate 143, and flows into the first channel 131 of the heat dissipation device 130 on the other side, realizing cyclic heat dissipation.

[0056] Furthermore, when there are multiple third partitions 143 and fourth partitions 144, the chambers on both sides of the fourth partition 144 are interconnected through the first channel 131 of the heat dissipation device 130, and the chambers on both sides of the third partition 143 are interconnected through the guide port 145. After the first fluid driving device 110 drives the heat dissipation airflow to flow through all the chambers on one side of the fourth partition 144 through the guide port 145, it can flow into the chamber on the other side of the fourth partition 144 through the first channel 131 of the heat dissipation device 130, and continue to flow through all the chambers through the guide port 145 and then enter the first channel 131 of the heat dissipation device 130 on the other side, and the cycle continues until it flows through all the chambers to achieve cyclic heat dissipation.

[0057] like Figure 5 , Figure 6 As shown, the heat dissipation device 130 of the embodiment of the utility model includes multiple first heat dissipation layers 133 and multiple second heat dissipation layers 134. The first heat dissipation layers 133 and the second heat dissipation layers 134 are alternately stacked and thermally coupled. The first heat dissipation layers 133 are hollow and respectively connected to the first channels 131 and the accommodating space. The second heat dissipation layers 134 include at least one second channel 132.

[0058] The first heat dissipation layer 133 of the heat dissipation device 130 in the embodiment of the utility model is composed of a plurality of fins, and the second heat dissipation layer 134 is composed of a plurality of pipes, each of which includes a second channel 132. The plurality of fins of the first heat dissipation layer 133 extend along the first direction X and are stacked along the second direction Y. The fins are spaced apart from each other, and the heat dissipation airflow can flow in the gaps between the fins, so that the fins can absorb the heat in the heat dissipation airflow. The second pipe of the second heat dissipation layer 134 extends along the second direction Y, and the fins can conduct the absorbed heat to the second pipe, so that the cold air passing through the second pipe can dissipate the heat to the outside of the heat dissipation device 130. Among them, the pipe can be in the shape of a flat tube, an elliptical tube, a round tube, etc. The first direction X and the second direction Y can be perpendicular or have an angle, and the angle of the angle is in the range of 0° to 90°.

[0059] Furthermore, the heat sink 130 further includes an isolation layer 135, which is thermally coupled to the first heat sink 133 and the second heat sink 134, and the first channel 131 is disposed on the isolation layer 135 and is spaced apart from the second channel 132. The isolation layer 135 may be disposed on the outer surface of the heat sink 130 or inside the heat sink 130, and the shape of the heat sink 130 may be spherical, cubic, or other shapes, which are not limited in the embodiments of the present utility model.

[0060] Optionally, the first heat dissipation layer 133 and the second heat dissipation layer 134 of the heat dissipation device 130 are both composed of a plurality of pipes, and the plurality of pipes are thermally coupled to each other. The pipes of the first heat dissipation layer 133 are isolated from the external environment and are connected to the first channel 131. The heat dissipation medium in the accommodating space can flow through the first channel 131 through the pipes of the first heat dissipation layer 133, and both ends of the pipes of the second heat dissipation layer 134 are connected to the outside.

[0061] The heat dissipation airflow in the cabinet 120 can enter the space formed between the multiple fins of the first heat dissipation layer 133 from the accommodating space, and flow into the first channel 131 in the isolation layer 135 through the space. The heat dissipation airflow can flow along the first channel 131 into the space formed between the multiple fins at the other end of the first heat dissipation layer 133, and flow back to the accommodating space through the space.

[0062] When the heat dissipation airflow passes through the fins, it can transfer the heat to the fins, and the fins then transfer the heat to the pipes of the second heat dissipation layer 134. When the external heat dissipation airflow passes through the pipes of the second heat dissipation layer 134, it can take away the heat on the pipes to achieve heat dissipation.

[0063] In another embodiment of the utility model, at least part of the pipes of the second heat dissipation layer 134 are connected to the accommodation space and the first channel 131, and the heat dissipation airflow in the cabinet 120 can also enter the pipes of the second heat dissipation layer 134 from the accommodation space, and flow into the first channel 131 in the isolation layer 135 through the pipes. The heat dissipation airflow can flow into the pipe at the other end of the second heat dissipation layer 134 along the first channel 131, and flow back to the accommodation space through the pipes.

[0064] When the heat dissipation airflow passes through the pipe, it can transfer the heat to the pipe, and the fins then transfer the heat to the fins of the first heat dissipation layer 133. When the external heat dissipation airflow passes through the fins of the first heat dissipation layer 133, it can take away the heat on the fins to achieve heat dissipation.

[0065] Optionally, the electrical cabinet 100 further includes at least one second fluid driving device 150 , which can drive the heat dissipation medium outside the cabinet 120 to flow into the second channel 132 , so that the heat dissipation medium in the second channel 132 can absorb the heat in the first channel 131 .

[0066] The multiple second channels 132 of the heat dissipation device 130 pass through the interior of the heat dissipation device 130, and the second channels 132 are thermally coupled to the first channels 131. The second fluid driving device 150 can blow cold air from the external environment to the second channels 132, so that the cold air can absorb the heat conducted from the first channels 131 of the heat dissipation device 130 when passing through the second channels 132, thereby achieving heat dissipation for the electronic device 200.

[0067] When the electrical cabinet 100 in the embodiment of the utility model adopts air cooling, the first fluid driving device 110 and the second fluid driving device 150 are both cooling fans. The heat sink 130 can also adopt liquid cooling, and the second fluid driving device 150 can be a water pump, so that the liquid heat dissipation medium flows through the second channel 132 of the heat sink 130 and absorbs the heat conducted from the first channel 131.

[0068] The number of the first fluid driving device 110 and the second fluid driving device 150 of the embodiment of the utility model can be one or more. The first fluid driving device 110 can be arranged in the accommodation space or the first channel 131 to drive the circulation of the heat dissipation airflow, and the second fluid driving device 150 can be arranged at the end of the heat dissipation device 130 close to the ground or away from the ground. The first fluid driving device 110 can guide the heat dissipation medium to the first channel 131 or guide the heat dissipation medium out of the first channel 131, and the second fluid driving device 150 can guide the external heat dissipation medium to the second channel 132 or guide the external heat dissipation medium out of the second channel 132.

[0069] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0070] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0071] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An electrical cabinet, characterized in that: The electrical cabinet comprises: at least one first fluid drive device; A cabinet, the cabinet comprising a receiving space for receiving electronic devices; at least one heat dissipation device, the heat dissipation device is arranged outside the accommodation space, the heat dissipation device comprises at least one first channel and at least one second channel, both ends of the first channel are in communication with the accommodation space, and the second channel is in communication with the outside; The first fluid driving device can drive the heat dissipation medium to circulate between the accommodating space and the first channel.

2. The electrical cabinet according to claim 1, characterized in that: The electrical cabinet comprises at least one partition, which is arranged in the accommodation space and divides the accommodation space into at least two chambers that are interconnected, and at least one of the first fluid driving devices is arranged in the accommodation space and / or the heat dissipation device; The first fluid driving device can drive the heat dissipation medium to flow through the first channel and the different chambers, so that the heat dissipation medium circulates between the heat dissipation device and the accommodating space.

3. The electrical cabinet according to claim 2, characterized in that: The partition includes at least one first partition, the first partition is provided with a guide port, the chambers on both sides of the first partition are connected through the guide port, and the first fluid driving device can drive the heat dissipation medium in the accommodating space to flow through different chambers through the guide port.

4. The electrical cabinet according to claim 3, characterized in that: There are multiple chambers, and the multiple chambers are connected to each other through the guide ports, wherein at least some of the chambers are connected to the first channel of the heat dissipation device, and at least one of the first fluid driving devices is arranged in the chamber and / or the heat dissipation device.

5. The electrical cabinet according to claim 2, characterized in that: The electrical cabinet comprises at least two heat dissipation devices, the partition comprises at least one second partition, the at least two heat dissipation devices are respectively arranged on the outer surface of the cabinet body, and the chambers on both sides of the second partition are spaced apart from each other and are respectively connected to the first channels of the at least two heat dissipation devices; The first fluid driving device can drive the heat dissipation medium to circulate between the chamber and the first channel through the first channels of different heat dissipation devices.

6. The electrical cabinet according to claim 5, characterized in that: There are multiple chambers, and the multiple chambers are spaced apart from each other. Each chamber is connected to the first channels of at least two heat dissipation devices respectively, and at least one of the first fluid driving devices is arranged in the chamber and / or the heat dissipation device.

7. The electrical cabinet according to claim 2, characterized in that: The partition also includes at least one third partition and at least one fourth partition. The third partition and the fourth partition are cross-linked or spaced apart from each other. The third partition is provided with a guide port. The chambers on both sides of the third partition are connected through the guide port. The chambers on both sides of the fourth partition are spaced apart from each other and are respectively connected to the first channels of at least two of the heat dissipation devices.

8. The electrical cabinet according to claim 2, characterized in that: The heat dissipation device includes multiple first heat dissipation layers and multiple second heat dissipation layers, the first heat dissipation layers and the second heat dissipation layers are alternately stacked and thermally coupled, the first heat dissipation layers are hollow and respectively connected to the first channels and the accommodating space, and the second heat dissipation layer includes at least one second channel.

9. The electrical cabinet according to claim 8, characterized in that: The heat dissipation device further includes an isolation layer, which is thermally coupled to the first heat dissipation layer and the second heat dissipation layer. The first channel is arranged in the isolation layer and is spaced apart from the second channel.

10. The electrical cabinet according to any one of claims 1 to 9, characterized in that: The electrical cabinet further comprises at least one second fluid driving device, which can drive the heat dissipation medium outside the cabinet to flow into the second channel, so that the heat dissipation medium in the second channel can absorb the heat in the first channel.

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