Central heat dissipation type electrical cabinet and heat dissipation method thereof

Abstract

The invention provides a central heat dissipation type electrical cabinet which comprises an electrical cabinet body, a heat dissipation plate is arranged on the side face of the electrical cabinet body, a plurality of heat dissipation holes are formed in the heat dissipation plate, an exhaust fan is installed at the top of the electrical cabinet body, an air feeder is installed at the bottom of the electrical cabinet body, and an installation pipe located in the center of the electrical cabinet body is vertically arranged in the electrical cabinet body. The upper end of the mounting pipe is connected with an air inlet pipe of the exhaust fan, the lower end of the mounting pipe is connected with an air outlet pipe of the air feeder, and the air outlet pipe of the exhaust fan and the air inlet pipe of the air feeder are respectively communicated with the outside of the electrical cabinet body; a partition plate for partitioning the mounting pipe is arranged on the mounting pipe, and a plurality of air outlet barrels located below the partition plate and a plurality of air inlet barrels located above the partition plate are further mounted on the mounting pipe. The problem that the heat dissipation efficiency is low due to action position limitation in the prior art is solved. The invention further provides a heat dissipation method of the electrical cabinet.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical cabinet equipment, and in particular to a central heat dissipation type electrical cabinet and a heat dissipation method thereof. Background Art

[0002] An electrical cabinet generally includes an electrical cabinet body, and a heat dissipation hole is provided on the electrical cabinet body for connecting the inside and outside of the electrical cabinet body, and the electrical gas components are installed in the electrical cabinet body. In the actual operation process, a lot of heat is generally generated in the electrical cabinet body, which is dissipated outward through the heat dissipation holes. In order to improve the heat dissipation efficiency, a blower can be added to blow fresh air into the electrical cabinet body to replace the higher temperature air in the electrical cabinet body to achieve the effect of heat dissipation. An exhaust fan can also be added to draw the higher temperature air in the electrical cabinet body outward, which can also renew the air in the electrical cabinet body to achieve the effect of heat dissipation. However, in the actual operation process, the position of the exhaust fan or the supply fan is relatively limited (at the connection point between the exhaust fan air inlet pipe or the supply fan air outlet pipe and the electrical cabinet body), and it generally takes a long time to achieve a better effect, so the overall efficiency is low. Summary of the invention

[0003] In view of the deficiencies existing in the prior art, the present invention provides a central heat dissipation type electrical cabinet, which solves the problem of low heat dissipation efficiency caused by limited action position in the prior art.

[0004] According to an embodiment of the present invention, a central heat dissipation type electrical cabinet includes an electrical cabinet body, a heat dissipation plate is arranged on the side of the electrical cabinet body, a plurality of heat dissipation holes are arranged on the heat dissipation plate, an exhaust fan is installed on the top of the electrical cabinet body, and a supply fan is installed on the bottom, and a mounting pipe is vertically arranged in the electrical cabinet body and located at its center, the upper end of the mounting pipe is connected to the air inlet pipe of the exhaust fan, and the lower end is connected to the air outlet pipe of the supply fan, the air outlet pipe of the exhaust fan and the air inlet pipe of the supply fan are respectively connected to the outside of the electrical cabinet body; a partition is arranged on the mounting pipe to separate it, and a plurality of air outlet tubes located below the partition and a plurality of air inlet tubes located above the partition are also installed on the mounting pipe.

[0005] In the above embodiment, an exhaust fan and a supply fan are respectively arranged at the top and the bottom, and are respectively connected to the mounting pipes. When the exhaust fan is in operation, air with a higher temperature is drawn into the electrical cabinet body from multiple locations through multiple air inlets, and then discharged to the outside through the exhaust fan. Furthermore, the supply fan can also cooperate with the external fresh air to supply fresh air, thereby increasing the speed of air renewal in the electrical cabinet body, further improving the overall heat dissipation efficiency, and solving the problem of low heat dissipation efficiency caused by the limited position of action in the prior art.

[0006] Furthermore, a lower mounting plate located at the lower end is fixedly connected to the electrical cabinet body, the air blower is fixedly connected to the lower mounting plate, and a first isolation net located below the lower mounting plate is also provided on the electrical cabinet body.

[0007] Furthermore, the lower mounting plate is also fixedly connected to a pair of vertical plates located above it, the two vertical plates are respectively located on both sides of the mounting tube and are provided with connecting holes, and the vertical plates are also fixedly connected to a horizontal plate extending toward the mounting tube.

[0008] Furthermore, the horizontal plates on the vertical plates include a plurality of horizontal plates arranged from bottom to top, and an air outlet or an air inlet is respectively arranged between adjacent horizontal plates and between the horizontal plates and the electrical cabinet body.

[0009] Furthermore, the upper end of the vertical plate is also fixedly connected to the electrical cabinet body.

[0010] Furthermore, an arched top covering the exhaust fan is fixedly connected to the upper end of the electrical cabinet body.

[0011] Furthermore, a mounting frame for mounting the heat sink is provided on the electrical cabinet body, the heat sink is fixed in the mounting frame, and a second isolation net covering all heat dissipation holes is also provided on the mounting frame.

[0012] Furthermore, the second isolation net is located on a side of the installation frame facing outside the electrical cabinet body.

[0013] Furthermore, the outer edge of the second isolation net is connected to the heat sink by screws.

[0014] According to an embodiment, a heat dissipation method of the above-mentioned central heat dissipation type electrical cabinet is also provided, the exhaust fan has at least two operating gears of low operating speed and high operating speed, and the heat dissipation method comprises the following steps:

[0015] Start the exhaust fan. When it is running in the first gear, the supply fan will not start. When it is running in the second gear, the supply fan will start at the same time.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] By arranging exhaust fans and air supply fans above and below the electrical cabinet body, and arranging a mounting pipe inside, with multiple air inlets and outlets on the mounting pipe, the number of action points is increased, the coverage range is larger, and the efficiency is improved. At the same time, the air supply fan is used to supply fresh air from the outside, thereby increasing the speed of air renewal in the electrical cabinet body, and further improving the overall heat dissipation efficiency, thereby solving the problem of low heat dissipation efficiency caused by limited action position in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0019] Figure 2 for Figure 1 A is an enlarged schematic diagram of the local structure at center A;

[0020] In the above drawings:

[0021] Electrical cabinet body 1, heat sink 2, heat dissipation holes 3, exhaust fan 4, air supply fan 5, base 6, mounting pipe 7, partition 8, air outlet 9, air inlet 10, lower mounting plate 11, first isolation net 12, arch top 13, vertical plate 14, connecting hole 15, horizontal plate 16, mounting frame 17, second isolation net 18, screws 19. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0024] In an exemplary embodiment, Figure 1 As shown, the present embodiment provides a central heat dissipation type electrical cabinet, which includes an electrical cabinet body 1, and a heat dissipation plate 2 (which can be two sides facing and located on both sides of the cabinet door) is arranged on the side of the electrical cabinet body 1, and a plurality of heat dissipation holes 3 are arranged on the heat dissipation plate 2. These heat dissipation holes 3 are similar to those in the prior art and can allow air to circulate inside and outside the electrical cabinet body 1, thereby achieving a basic heat dissipation function; in a further scheme, an exhaust fan 4 is installed on the top of the electrical cabinet body 1, and a blower 5 is installed on the bottom. A base 6 can also be arranged at the bottom of the cabinet to raise it, and a mounting pipe 7 located at its center position is vertically arranged in the electrical cabinet body 1, and the upper end of the mounting pipe 7 is connected to the air inlet pipe of the exhaust fan 4, and the lower end is connected to the air outlet pipe of the blower 5, and the air outlet pipe of the exhaust fan 4 and the air inlet pipe of the blower 5 are respectively connected to the outside of the electrical cabinet body 1; a partition 8 is arranged on the mounting pipe 7 to separate it, and a plurality of air outlet pipes 9 located below the partition 8 and a plurality of air inlet pipes 10 located above the partition 8 are also installed on the mounting pipe 7.

[0025] In the above embodiment, an exhaust fan 4 and an air supply fan 5 are respectively arranged at the top and the bottom, and are respectively connected to the mounting pipe 7. The mounting pipe 7 is located at the center of the electrical cabinet body 1, so that the air inlet 10 and the air outlet 9 can be respectively extended to the two sides of the heat dissipation plate 2, and the electrical components in the electrical cabinet body 1 are installed on both sides of the mounting pipe 7, so that the action positions are more and closer to the heat generation position (i.e., the electrical components). When the exhaust fan 4 is running, the air with a higher temperature in the electrical cabinet body 1 is drawn from multiple places through multiple air inlets 10, and then discharged to the outside through the exhaust fan 4. Further, the air supply fan 5 can be used to supply fresh air from the outside, thereby improving the speed of air renewal in the electrical cabinet body 1, and the overall heat dissipation efficiency is further improved, which solves the problem of low heat dissipation efficiency caused by the limitation of the action position in the prior art;

[0026] In a further implementation scheme, a heat dissipation method for the central heat dissipation type electrical cabinet is also provided, wherein the exhaust fan 4 provided can have at least two operating gears, namely, a low operating speed and a high operating speed, referred to as the first gear and the second gear (depending on the specific situation, more speed gears can be set). When operating in the first gear, the air supply fan 5 can be disabled. At this time, the external air enters the electrical cabinet body 1 through the heat dissipation holes 3. When operating in the second gear, the suction force is greater, which may cause external impurities to pass through the heat dissipation holes 3 and enter the electrical cabinet body 1. Therefore, in this scheme, the air supply fan 5 is started to deliver more external air, thereby increasing the air renewal speed while avoiding impurities from passing through the heat dissipation holes 3 and entering the electrical cabinet body 1 due to the increased suction force. In more detail, if more operating gears of the exhaust fan 4 are set, multiple operating gears of the air supply fan 5 are also set accordingly to match the operation to avoid excessive difference between the two.

[0027] Furthermore, if Figure 1 As shown, a lower mounting plate 11 located at the lower end is fixedly connected inside the electrical cabinet body 1, the air blower 5 is fixedly connected to the lower mounting plate 11, and a first isolation net 12 located below the lower mounting plate 11 is also provided on the electrical cabinet body 1, that is, the air blower 5 is installed inside the electrical cabinet body 1, which is beneficial to protecting the air blower 5. The first isolation net 12 acts as a protective net to prevent external impurities from entering when the air blower 5 is running. Similarly, a second isolation net 18 can also be covered on the outside of the heat sink 2 to isolate and protect the heat dissipation holes 3; an arched top 13 covering the exhaust fan 4 is also fixedly connected to the upper end of the electrical cabinet body 1, so that the exhaust fan 4 can be protected.

[0028] In a more detailed exemplary embodiment, Figure 1 , 2As shown, the lower mounting plate 11 is also fixedly connected to a pair of vertical plates 14 located above it, and the two vertical plates 14 are respectively located on both sides of the mounting tube 7. The vertical plates 14 are also fixedly connected to a horizontal plate 16 extending toward the mounting tube 7. The upper ends of the two vertical plates 14 are also fixed to the top surface inside the electrical cabinet body 1. The vertical plates 14, the lower mounting plate 11 and the plurality of horizontal plates 16 arranged in this way form an internal mounting skeleton, and are separated from the circumferential inner wall of the electrical cabinet body 1, and the outflow space is used to allow air to flow more smoothly in the electrical cabinet body 1, ensuring efficient heat dissipation. In more detail, the electrical components are mounted on the horizontal plates. 16, in more detail, the horizontal plate 16 on the vertical plate 14 includes a plurality of horizontal plates 16 arranged from bottom to top, and an air outlet 9 or an air inlet 10 is respectively arranged between adjacent horizontal plates 16 and between the horizontal plate 16 and the electrical cabinet body 1, and the openings of the air inlet 10 and the air outlet 9 are arranged horizontally and respectively face the upper or lower side of the corresponding horizontal plate 16, so as to directly act on the heat generation position during operation, so as to achieve better heat dissipation effect; in more detail, a connecting hole 15 is also arranged on the vertical plate 14, so that the air flows smoothly in the horizontal direction, and a similar connecting hole 15 can also be arranged on the horizontal plate 16.

[0029] like Figure 1 , 2 As shown, a mounting frame 17 for mounting the heat sink 2 is provided on the electrical cabinet body 1, and the heat sink 2 is fixed in the mounting frame 17. A second isolation net 18 covering all the heat dissipation holes 3 is also provided on the mounting frame 17, and the second isolation net 18 covers the heat dissipation holes 3 to enhance the interception effect of external impurities. Specifically, the second isolation net 18 is located on the side of the mounting frame 17 facing the outside of the electrical cabinet body 1 and the outer edge of the second isolation net 18 is connected to the heat sink 2 by screws 19, which is convenient for regular cleaning after disassembly. Furthermore, the air supply fan 5 can be turned off by starting the exhaust fan 4 to introduce air into the electrical cabinet body 1, forcing the air in the electrical cabinet body 1 to pass through the heat dissipation holes 3 and the second isolation net 18 to achieve the cleaning effect, and also to play a heat dissipation role. Similarly, the first isolation net 12 can also be detachably connected by screws 19 and cleaned after disassembly.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A central heat dissipation type electrical cabinet, characterized in that: It includes an electrical cabinet body, a heat sink is arranged on the side of the electrical cabinet body, a plurality of heat dissipation holes are arranged on the heat sink, an exhaust fan is installed on the top of the electrical cabinet body, and a supply fan is installed on the bottom, a mounting pipe is vertically arranged in the electrical cabinet body and located at the center thereof, the upper end of the mounting pipe is connected to the air inlet pipe of the exhaust fan, and the lower end is connected to the air outlet pipe of the supply fan, the air outlet pipe of the exhaust fan and the air inlet pipe of the supply fan are respectively connected to the outside of the electrical cabinet body; a partition is arranged on the mounting pipe to separate it, and a plurality of air outlet tubes located below the partition and a plurality of air inlet tubes located above the partition are also installed on the mounting pipe.

2. The central heat dissipation type electrical cabinet according to claim 1, characterized in that: A lower mounting plate located at the lower end is fixedly connected to the electrical cabinet body, the blower is fixedly connected to the lower mounting plate, and a first isolation net located below the lower mounting plate is also arranged on the electrical cabinet body.

3. The central heat dissipation type electrical cabinet according to claim 2, characterized in that: The lower mounting plate is also fixedly connected to a pair of vertical plates located above it, the two vertical plates are respectively located on both sides of the mounting tube and the vertical plates are provided with connecting holes, and the vertical plates are also fixedly connected to a horizontal plate extending toward the mounting tube.

4. The central heat dissipation type electrical cabinet according to claim 3, characterized in that: The transverse plates on the vertical plates include a plurality of plates arranged from bottom to top, and an air outlet duct or an air inlet duct is respectively arranged between adjacent transverse plates and between the transverse plates and the electrical cabinet body.

5. The central heat dissipation type electrical cabinet according to claim 3, characterized in that: The upper end of the vertical plate is also fixedly connected to the electrical cabinet body.

6. The central heat dissipation type electrical cabinet according to claim 1, characterized in that: The upper end of the electrical cabinet body is also fixedly connected with an arched top covering the exhaust fan.

7. The central heat dissipation type electrical cabinet according to any one of claims 1 to 6, characterized in that: The electrical cabinet body is provided with a mounting frame for mounting the heat sink, the heat sink is fixed in the mounting frame, and the mounting frame is also provided with a second isolation net covering all the heat dissipation holes.

8. The central heat dissipation type electrical cabinet according to claim 7, characterized in that: The second isolation net is located on a side of the installation frame facing outside the electrical cabinet body.

9. The central heat dissipation type electrical cabinet according to claim 8, characterized in that: The outer edge of the second isolation net is connected to the heat sink through screws.

10. The heat dissipation method of a central heat dissipation type electrical cabinet according to any one of claims 1 to 9, characterized in that: The exhaust fan has at least two operating gears, a low operating speed and a high operating speed, and comprises the following steps: Start the exhaust fan. When it is running in the first gear, the air supply fan is not started. When it is running in the second gear, the air supply fan is started at the same time.

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