Heat dissipation device and power distribution cabinet

Abstract

The invention relates to a heat dissipation device and a power distribution cabinet, and the device comprises a pedestal which is provided with an air inlet and an air outlet; the heat dissipation frame is connected with the base, the heat dissipation frame comprises a first heat dissipation channel, the air inlet end of the first heat dissipation channel is communicated with the air inlet, and the air outlet end of the first heat dissipation channel is communicated with the air outlet; the first air blowing piece is connected with the base, and the output end of the first air blowing piece is communicated with the air inlet; and the second air blowing piece is connected with the base, and the output end of the second air blowing piece faces the heat dissipation frame. According to the heat dissipation device and the power distribution cabinet, the use efficiency of the power distribution cabinet can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat dissipation structures, and in particular to a heat dissipation device and a power distribution cabinet. Background Art

[0002] The power distribution cabinet is the final equipment of the power distribution system. Since there are high-power heat-generating electrical components in the power distribution cabinet, such as high-power inverters, the temperature in the power distribution cabinet gradually rises. When the temperature in the power distribution cabinet exceeds the maximum temperature of the electrical components, the electrical components may burn out. At present, ventilation equipment such as fans are used to export the heat in the power distribution cabinet to the outside through airflow, thereby completing the cooling of the power distribution cabinet. However, some power distribution cabinets need to be completely sealed during operation, such as explosion-proof power distribution cabinets, and ventilation equipment cannot be used. Therefore, the completely sealed power distribution cabinet needs to be shut down for cooling after a certain period of use, resulting in low efficiency of the power distribution cabinet. Summary of the invention

[0003] Therefore, the technical problem to be solved by the present invention is to provide a heat dissipation device and a power distribution cabinet, which can improve the use efficiency of the power distribution cabinet.

[0004] To solve the above technical problems, the present invention provides a heat dissipation device, comprising: a base, on which an air inlet and an air outlet are provided; a heat dissipation frame connected to the base, the heat dissipation frame comprising a first heat dissipation channel, the air inlet end of the first heat dissipation channel is connected to the air inlet, and the air outlet end of the first heat dissipation channel is connected to the air outlet; a first air blowing member connected to the base, and the output end of the first air blowing member is connected to the air inlet; a second air blowing member connected to the base, and the output end of the second air blowing member faces the heat dissipation frame.

[0005] In one embodiment of the present invention, a plurality of heat dissipation racks are provided, and adjacent heat dissipation racks are connected by guide members, and a second heat dissipation channel is provided in the guide member, and the second heat dissipation channel is communicated with the first heat dissipation channel.

[0006] In one embodiment of the present invention, a plurality of heat dissipation racks are connected to the same side of the base, and the guide member and the heat dissipation racks are connected to opposite sides of the base.

[0007] In one embodiment of the present invention, the heat dissipation frame includes a first baffle, a second baffle and an end plate, the first heat dissipation channel is located between the first baffle and the second baffle, the end plate is connected to the ends of the first baffle and the second baffle, and the first baffle and the second baffle both include multiple bends.

[0008] In one embodiment of the present invention, both the first baffle plate and the second baffle plate are connected to the base, and the first baffle plate is located between the second baffle plate and the base.

[0009] In one embodiment of the present invention, the heat sink further includes a first heat sink, which includes a plurality of first heat sink plates. The first heat sink is located in the first heat sink channel, and the plane where the first heat sink plates are located is parallel to the airflow moving direction in the first heat sink channel.

[0010] In one embodiment of the present invention, it also includes a cover plate, which is connected to the base, a first accommodating space is formed between the cover plate and the base, the heat sink is located in the first accommodating space, a third heat dissipation channel is formed between the cover plate and the heat sink, and the output end of the second blowing member faces the third heat dissipation channel.

[0011] In one embodiment of the present invention, the heat sink further includes a second heat sink, which includes a plurality of second heat sinks, which are located in the third heat sink channel, and the plane where the second heat sinks are located is parallel to the airflow moving direction in the third heat sink channel.

[0012] The present invention also provides a power distribution cabinet, comprising the above-mentioned heat dissipation device.

[0013] In one embodiment of the present invention, the power distribution cabinet includes a shell, the shell includes a second accommodation space, the base is connected to the shell, the first blowing member is located in the second accommodation space, and the heat dissipation frame and the second blowing member are located outside the second accommodation space.

[0014] The above technical solution of the present invention has the following advantages compared with the prior art:

[0015] The heat dissipation device and power distribution cabinet described in the present invention enable high-temperature gas to pass into the first channel through the cooperation of the first blowing member and the first heat dissipation channel, and are respectively connected with the air inlet and the air outlet through the two ends of the first heat dissipation channel, so that the gas in the first channel can flow in the sealed cavity, and the high-speed airflow is blown toward the heat dissipation frame through the second blowing member, so that the gas in the first channel is cooled, and the heat dissipation in the sealed cavity is achieved without ventilation to the outside, thereby eliminating the need for the power distribution cabinet to be shut down for cooling, thereby improving the use efficiency of the power distribution cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0017] Figure 1 It is a structural schematic diagram of a heat dissipation device of the present invention;

[0018] Figure 2 yes Figure 1 A schematic diagram of the structure from another angle;

[0019] Figure 3 yes Figure 1 Schematic diagram of the internal structure;

[0020] Figure 4 yes Figure 3 A partial structural cross-sectional view of

[0021] Figure 5 It is a structural diagram of a power distribution cabinet;

[0022] Figure 6 It is a structural schematic diagram of another embodiment of a power distribution cabinet.

[0023] Explanation of the reference numerals in the specification: 1. base; 2. heat sink; 3. cover plate; 4. shell; 11. first air blowing member; 12. second air blowing member; 13. air outlet; 21. end plate; 22. second heat sink; 23. guide member; 24. first baffle plate; 25. first heat sink; 26. second baffle plate; 31. third baffle plate. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0025] Embodiment 1

[0026] Reference Figures 1 to 4 As shown, a heat dissipation device of the present invention includes: a base 1, on which an air inlet and an air outlet 13 are provided; a heat dissipation frame 2, connected to the base 1, the heat dissipation frame 2 includes a first heat dissipation channel, the air inlet end of the first heat dissipation channel is connected to the air inlet, and the air outlet end of the first heat dissipation channel is connected to the air outlet 13; a first air blowing member 11, connected to the base 1, and the output end of the first air blowing member 11 is connected to the air inlet; a second air blowing member 12, connected to the base 1, and the output end of the second air blowing member 12 faces the heat dissipation frame 2.

[0027] In a heat dissipation device of this embodiment, the first blower 11 guides high-temperature gas from the air inlet into the first heat dissipation channel, and the high-temperature gas circulates in the first channel. At the same time, the second blower 12 blows a high-speed airflow toward the heat dissipation frame 2. The high-temperature gas in the first channel exchanges heat with the high-speed airflow through the heat dissipation frame 2, thereby cooling the high-temperature gas in the first channel, and the cooled gas is discharged from the air outlet 13. Through the cooperation of the first blower 11 and the first heat dissipation channel, the high-temperature gas can pass into the first channel, and is connected to the air inlet and the air outlet 13 through the two ends of the first heat dissipation channel, respectively, so that the gas in the first channel can flow in the sealed cavity, and the high-speed airflow is blown toward the heat dissipation frame 2 by the second blower 12, so that the gas in the first channel is cooled, and then the heat dissipation in the sealed cavity is achieved without ventilation to the outside, so that the power distribution cabinet does not need to be shut down for cooling, thereby improving the use efficiency of the power distribution cabinet.

[0028] Reference Figure 1 and Figure 2 As shown, the base 1 is used to connect the heat dissipation frame 2, the first blowing member 11 and the second blowing member 12, and the base 1 is provided with an air inlet and an air outlet 13 for gas circulation. The first blowing member 11 can be regarded as a fan, the first blowing member 11 is connected to the base 1, and the output end of the first blowing member 11 is connected to the air inlet.

[0029] Reference Figure 3 and Figure 4 As shown, the heat sink 2 is connected to the base 1, and the heat sink 2 includes a first heat dissipation channel, the air inlet end of the first heat dissipation channel is connected to the air inlet, and the air outlet end of the first heat dissipation channel is connected to the air outlet 13, and the first air blowing member 11 can pass gas into the first heat dissipation channel through the air inlet. Preferably, there are multiple heat sinks 2, and in this embodiment, there are two heat sinks 2. Different numbers of heat sinks 2 can be set according to the size of the base 1 and the heat dissipation efficiency. Adjacent heat sinks 2 are connected by guide members 23, and the guide members 23 are arc-shaped and connected to the base 1. The guide members 23 are tubular and are provided with a second heat dissipation channel, and the second heat dissipation channel is connected to the first heat dissipation channel, so that the gas output by the first air blowing member 11 can pass through multiple first heat dissipation channels in sequence, thereby making the gas heat exchange time in the first heat dissipation channel longer and the heat dissipation efficiency higher, and the airflow can also exchange heat with the sealed cavity when flowing through the second heat dissipation channel, thereby further improving the heat dissipation efficiency. Multiple heat sinks 2 are connected to the same side of the base 1, and the guide member 23 is connected to the other side of the base 1, that is, the guide member 23 and the heat sink 2 are arranged opposite to each other, so that the first blowing member 11 and the guide member 23 are both located in the sealed cavity, and the heat sink 2 is all located outside the sealed cavity.

[0030] The heat sink 2 includes a first baffle 24, a second baffle 26 and an end plate 21. The first heat dissipation channel is located between the first baffle 24 and the second baffle 26. The end plate 21 is connected to the ends of the first baffle 24 and the second baffle 26, that is, the first baffle 24, the second baffle 26 and the end plate 21 together form the first heat dissipation channel. The size of the air inlet end of the first heat dissipation channel matches the air inlet, the size of the air outlet end of the first heat dissipation channel matches the air outlet 13, and the air inlet end of the first heat dissipation channel is sealed and connected to the edge of the air inlet, and the air outlet end of the first heat dissipation channel is sealed and connected to the edge of the air outlet 13. Preferably, the first baffle 24 and the second baffle 26 are arranged in parallel and have a plurality of bends, so that the first heat dissipation channel is composed of a plurality of heat dissipation channels connected in sequence. In this embodiment, the radial cross section of the first heat dissipation channel is trapezoidal. According to the required efficiency of the first heat dissipation channel, the radial cross section of the first heat dissipation channel can also be rectangular, polygonal, etc., so that the gas in the first heat dissipation channel can have a longer flow path, that is, the heat exchange time of the gas in the first heat dissipation channel is longer, thereby improving the heat dissipation efficiency. The first baffle plate 24 and the second baffle plate 26 are both connected to the base 1 , and the first baffle plate 24 is located between the second baffle plate 26 and the base 1 , that is, the size of the first baffle plate 24 is smaller than that of the second baffle plate 26 .

[0031] The heat sink 2 also includes a first heat sink 25, which includes a plurality of first heat sinks, which are parallel to each other, and the first heat sink 25 is located in the first heat dissipation channel, that is, the first heat sink 25 is connected to the side of the second baffle 26 close to the first baffle 24, and the plane where the first heat sink is located is parallel to the airflow moving direction in the first heat dissipation channel, thereby improving the heat dissipation efficiency. When the first baffle 24 and the second baffle 26 are provided with a plurality of bends, the first heat sink 25 is provided with a plurality of bends, and each first heat sink 25 corresponds to the position of the heat dissipation airway, that is, the first heat sink 25 is located between the bend positions on the second baffle 26.

[0032] The cover plate 3 is also included, and the cover plate 3 is connected to the base 1. A first accommodation space is formed between the cover plate 3 and the base 1. The heat sink 2 is located in the first accommodation space. The cross section of the cover plate 3 is trapezoidal as a whole. A third heat dissipation channel is formed between the cover plate 3 and the second baffle 26 of the heat sink 2. The output end of the second air blowing member 12 faces the third heat dissipation channel. The airflow direction of the third heat dissipation channel is perpendicular to the airflow direction of the first heat dissipation channel, that is, the airflow direction output by the first air blowing member 11 is perpendicular to that of the second air blowing member 12, so that the gas in the first heat dissipation channel can be quickly cooled, thereby improving the heat dissipation efficiency. When multiple heat sinks 2 are provided, a third baffle 31 is provided on one side of the cover plate 3 close to the second baffle 26. The two third baffles 31 are located between the second heat sinks 22. The two third baffles 31 are V-shaped and parallel to the adjacent second baffles 26. The setting of the third baffle 31 enables the airflow output by the second air blowing member 12 to be evenly guided through the two third baffles 31, so that the airflow can better exchange heat with the heat sinks 2 located on both sides of the third baffles 31 and the first heat sink 25 and the second heat sink 22 located on the heat sink 2, thereby improving the heat dissipation efficiency.

[0033] The heat sink 2 also includes a second heat sink 22, which includes a plurality of second heat sinks, which are parallel to each other and perpendicular to the first heat sink. The second heat sink is located in the third heat sink channel, that is, the second heat sink is connected to the side of the second baffle 26 close to the cover plate 3, and the plane where the second heat sink is located is parallel to the airflow moving direction in the third heat sink channel, thereby improving the heat dissipation efficiency. When the first baffle 24 and the second baffle 26 are provided with a plurality of bends, a plurality of second heat sinks 22 are included, and each second heat sink 22 corresponds to the position of the heat dissipation airway, that is, the first heat sink 25 is located between the bend positions on the second baffle 26. Preferably, the second baffle 26 is provided with an opening, the second heat sink 22 is sealed and connected to the edge of the opening on the second baffle 26, and the first heat sink 25 is connected to the second heat sink 22, thereby improving the heat exchange efficiency.

[0034] When in use, the first blowing member 11 guides the high-temperature gas into the first heat dissipation channel from the air inlet, and the high-temperature gas circulates in the first channel in sequence. At the same time, the second blowing member 12 blows the high-speed airflow to the third heat dissipation channel, and the high-temperature gas in the first heat dissipation channel exchanges heat with the high-speed airflow through the first heat dissipation member 25 and the second heat dissipation member 22, so that the high-temperature gas in the first channel is cooled, and the cooled gas is discharged from the air outlet 13.

[0035] Embodiment 2

[0036] Reference Figure 5 As shown, the present invention also provides a power distribution cabinet, including the heat dissipation device in embodiment 1. Specifically, Figure 5 The distribution cabinet shown can be regarded as a positive pressure cabinet.

[0037] The power distribution cabinet includes a shell 4, which includes a second storage space and a cabinet door. The edge of the cabinet door is connected with a sealing strip, which can be regarded as a foam strip. When the cabinet door is closed and locked, the sealing strip can seal the edge of the cabinet door. At this time, the second storage space can be regarded as a sealed cavity. The top of the shell 4 is provided with an opening, and the base 1 of the heat dissipation device is connected to the edge of the top opening of the shell 4. The first blower 11 and the guide member 23 pass through the opening and are located in the second storage space. The heat dissipation frame 2 and the second blower 12 are located at the top of the base 1, that is, the heat dissipation frame 2 and the second blower 12 are located outside the second storage space. When the heat dissipation device is working, it can cool down the gas in the second storage space, so that the inside of the distribution cabinet can also be cooled down during the operation of the distribution cabinet, and the distribution cabinet does not need to be shut down during the cooling process, thereby improving the use efficiency of the distribution cabinet. A controller connected to the shell 4 is provided in the second storage space, and the first blower 11 and the second blower 12 are both connected to the controller. When the room temperature is low, the second blowing member 12 may be shut down or its rotation speed may be reduced while ensuring that the temperature in the second accommodating space is within a suitable range.

[0038] In another embodiment, referring to Figure 6 As shown, Figure 6 The power distribution cabinet shown can be regarded as a dust cabinet. The assembly structure and heat dissipation principle of the dust cabinet and the heat dissipation device are the same as those of the positive pressure cabinet and will not be repeated.

[0039] A heat dissipation device and a power distribution cabinet of the present invention enable high-temperature gas to pass into the first channel through the cooperation of a first blowing member 11 and a first heat dissipation channel, and are respectively connected with an air inlet and an air outlet 13 through the two ends of the first heat dissipation channel, so that the gas in the first channel can flow in a sealed cavity, and a high-speed airflow is blown toward the heat dissipation frame 2 through the second blowing member 12, so that the gas in the first channel is cooled, and heat is dissipated in the sealed cavity without ventilation to the outside, so that the power distribution cabinet does not need to be shut down for cooling, thereby improving the use efficiency of the power distribution cabinet.

[0040] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A heat dissipation device, characterized in that: include: A base, wherein an air inlet and an air outlet are provided on the base; A heat sink connected to the base, the heat sink comprising a first heat dissipation channel, an air inlet end of the first heat dissipation channel is connected to the air inlet, and an air outlet end of the first heat dissipation channel is connected to the air outlet; A first air blowing member connected to the base, wherein an output end of the first air blowing member is in communication with the air inlet; The second air blowing member is connected to the base, and the output end of the second air blowing member faces the heat dissipation frame.

2. The heat dissipation device according to claim 1, characterized in that: There are a plurality of heat dissipation racks, and adjacent heat dissipation racks are connected by guide members. A second heat dissipation channel is arranged in the guide member, and the second heat dissipation channel is communicated with the first heat dissipation channel.

3. The heat dissipation device according to claim 2, characterized in that: A plurality of heat dissipation racks are connected to the same side of the base, and the guide member and the heat dissipation racks are connected to opposite sides of the base.

4. The heat dissipation device according to any one of claims 1 to 3, characterized in that: The heat dissipation frame includes a first baffle, a second baffle and an end plate. The first heat dissipation channel is located between the first baffle and the second baffle. The end plate is connected to the ends of the first baffle and the second baffle. The first baffle and the second baffle both include multiple bends.

5. The heat dissipation device according to claim 4, characterized in that: The first baffle plate and the second baffle plate are both connected to the base, and the first baffle plate is located between the second baffle plate and the base.

6. The heat dissipation device according to claim 1, characterized in that: The heat sink also includes a first heat sink, which includes a plurality of first heat sink plates. The first heat sink is located in the first heat sink channel, and a plane where the first heat sink plates are located is parallel to a direction of airflow movement in the first heat sink channel.

7. The heat dissipation device according to claim 1, characterized in that: It also includes a cover plate, which is connected to the base, a first accommodating space is formed between the cover plate and the base, the heat dissipation frame is located in the first accommodating space, a third heat dissipation channel is formed between the cover plate and the heat dissipation frame, and the output end of the second blowing member faces the third heat dissipation channel.

8. The heat dissipation device according to claim 7, characterized in that: The heat sink also includes a second heat sink, which includes a plurality of second heat sinks. The second heat sinks are located in the third heat sink channel, and the plane where the second heat sinks are located is parallel to the airflow moving direction in the third heat sink channel.

9. A power distribution cabinet, characterized in that: A heat dissipation device comprising any one of claims 5-8.

10. The power distribution cabinet according to claim 9, characterized in that: The power distribution cabinet includes a shell, the shell includes a second accommodating space, the base is connected to the shell, the first air blowing member is located in the second accommodating space, and the heat dissipation frame and the second air blowing member are located outside the second accommodating space.

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