Power distribution cabinet

Abstract

The invention discloses a power distribution cabinet which comprises a power distribution cabinet body, a lifting mechanism is arranged at the bottom of the power distribution cabinet body, and a heat dissipation and dehumidification mechanism is installed in the power distribution cabinet body. The lifting mechanism comprises a hollow bearing base arranged below the power distribution cabinet main body; the heat dissipation and dehumidification mechanism comprises a hollowed-out cover cylinder arranged at the bottom of the main shell, an upper cover cylinder is fixedly arranged in the hollowed-out cover cylinder, the bottom of the upper cover cylinder communicates with a lower hollowed-out cover cylinder, and a connection rotating rod rotationally connected with the lower hollowed-out cover cylinder is fixedly arranged at the bottom of the reciprocating threaded screw rod; through the combination of the heat dissipation and dehumidification mechanism and the lifting mechanism, a user can adjust the height position of the heat dissipation and dehumidification mechanism in the whole power distribution cabinet through the lifting mechanism, and especially in the height adjustment process of a lower hollow cover cylinder, the contact area between the lower hollow cover cylinder and the outside is continuously changed; therefore, the flow and the flow velocity of air entering through the lower hollow cover cylinder can be adjusted, and the purpose of optimizing and adjusting the heat dissipation and dehumidification capability of the power distribution cabinet according to the environment is achieved.

Description

[0001] This invention patent application is a divisional application. The original application number is 202411169152.4, the application date is August 23, 2024, and the invention title is a distribution cabinet convenient for maintenance. Technical Field

[0002] This application relates to the technical field of distribution cabinets, and particularly to a distribution cabinet. Background Art

[0003] The distribution cabinet is a key device for distributing electric energy in the power system, and is widely used in places such as substations, industrial facilities, commercial buildings, and residential areas. Its main functions include power distribution, electrical protection, monitoring and control, and safety management. The distribution cabinet is equipped with protection devices such as circuit breakers, fuses, and relays. The distribution cabinet is a device for distributing electric energy, protecting circuits and equipment in the power system. It can not only achieve the distribution of electric energy, but also has protection functions such as overload, short circuit, and leakage, ensuring that the power supply is cut off in time in case of a fault to protect equipment and personal safety. The distribution cabinet can also facilitate users to manage and maintain the power system in real time, and is one of the core devices to ensure stable power supply and improve power utilization efficiency. In the actual application process, distribution cabinets usually have the need for heat dissipation and dehumidification, especially in environments with large temperature changes and high humidity. Although the distribution cabinets of the existing technology are also equipped with dehumidification devices, the positions of the dehumidification devices are often fixed, resulting in very limited heat dissipation and dehumidification adjustment capabilities of the distribution cabinets. Summary of the Invention

[0004] The technical solution for the present invention to solve the above technical problems is as follows: A distribution cabinet includes a distribution cabinet main body. The distribution cabinet main body includes a main housing. A lifting mechanism is provided at the bottom of the distribution cabinet main body, and a heat dissipation and dehumidification mechanism is installed inside the distribution cabinet main body.

[0005] The lifting mechanism includes a hollow supporting base disposed below the distribution cabinet main body. A balance cushion plate is fixedly installed on the outer wall of the hollow supporting base. Two limit sliding grooves are opened at the top of the hollow supporting base, and a positioning type supporting bracket fixedly connected to the main housing is installed in the limit sliding grooves. One side of the positioning type supporting bracket is connected with a first threaded supporting rod. Two protective baffle plates are installed at the top of the hollow supporting base. The bottom of the first threaded supporting rod is connected with a guiding sliding support plate. A second threaded supporting rod rotatably connected to the hollow supporting base is in spiral transmission connection with the inner cavity of the guiding sliding support plate. The heat dissipation and dehumidification mechanism includes a hollow cover cylinder installed at the bottom of the main housing. An upper cover cylinder is fixedly installed inside the hollow cover cylinder. A lower hollow cover cylinder is communicated with the bottom of the upper cover cylinder. A hollow limiting cover is installed at the top of the upper cover cylinder. A heat dissipation fan assembly is installed at the top of the hollow limiting cover. A reciprocating threaded screw rod is fixedly connected to the bottom of the heat dissipation fan assembly. The bottom of the reciprocating threaded screw rod is fixedly installed with a connecting rotating rod rotatably connected to the lower hollow cover cylinder.

[0006] Preferably, a plurality of multi-directional stirring rods are fixedly installed on the connecting rotating rod, and the multi-directional stirring rods are arranged at equal intervals in a ring shape around the outer circumferential surface of the connecting rotating rod.

[0007] Preferably, a push plate is connected to the reciprocating threaded lead screw. A slope is provided on the top of the push plate, and the outer circumferential diameter of the push plate matches the inner circumferential diameter of the bottom of the upper cover cylinder.

[0008] Preferably, both the upper cover cylinder and the lower hollow cover cylinder are conical. When the upper cover cylinder and the lower hollow cover cylinder are spliced together, they are arranged in a funnel shape. The length of the outer circumferential diameter of the push plate is the same as the length of the inner circumferential diameter of the bottom of the upper cover cylinder. The bottom of the reciprocating threaded lead screw corresponds to the position of the bottom of the upper cover cylinder. When the push plate is at the bottom of the reciprocating threaded lead screw, the push plate is also at the bottom of the upper cover cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present invention or the existing technical solutions, the following will briefly introduce the drawings required for use in the description of the embodiments or the existing technical solutions. Obviously, the drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0010] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0011] Figure 2 is a partial side sectional view of the elevation mechanism of the present invention;

[0012] Figure 3 is of the present invention Figure 2 is an enlarged view of the structure of part A;

[0013] Figure 4 is a partial sectional view of the elevation mechanism and the heat dissipation and dehumidification mechanism of the present invention;

[0014] Figure 5 is of the present invention Figure 4 is an enlarged view of the structure of part B;

[0015] Figure 6 is a side sectional view of the structure of the heat dissipation and dehumidification mechanism of the present invention;

[0016] Figure 7 is of the present invention Figure 6 is an enlarged view of the structure of part C.

[0017] In the figure: 1. Main body of the power distribution cabinet; 101. Main housing; 102. Hollow partition board; 2. Lifting mechanism; 21. Hollow supporting base; 22. Balancing cushion plate; 23. Limit sliding groove; 24. Positioning support bracket; 25. First threaded support rod; 26. Guide sliding support plate; 27. Second threaded support rod; 28. Protective baffle; 29. First connecting gear rod; 210. Electric rotating rod; 211. Second connecting gear rod; 212. Transmission belt; 3. Heat dissipation and dehumidification mechanism; 31. Hollow cover cylinder; 32. Upper cover cylinder; 33. Lower hollow cover cylinder; 34. Hollow limit cover; 35. Heat dissipation fan assembly; 36. Reciprocating threaded lead screw; 37. Connecting rotating rod; 38. Motor; 39. Directional dust scraping plate; 310. Pushing plate; 311. Multi-directional stirring rod. Detailed implementation manners

[0018] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0019] Please refer to Figures 1-7 , as shown in the figure, a power distribution cabinet provided in this embodiment, as Figures 1-2 shown, includes a main body 1 of the power distribution cabinet. A lifting mechanism 2 is fixedly connected to the bottom of the main body 1 of the power distribution cabinet; a heat dissipation and dehumidification mechanism 3 is fixedly installed inside the main body 1 of the power distribution cabinet; referring to Figure 2 and Figures 4-5 shown, the main body 1 of the power distribution cabinet includes a main housing 101. A hollow partition board 102 is fixedly installed inside the main housing 101. The lifting mechanism 2 includes a hollow supporting base 21 arranged at the bottom of the main housing 101. The heat dissipation and dehumidification mechanism 3 includes a hollow cover cylinder 31 fixedly installed at the bottom of the main housing 101 and extending into the inside of the hollow supporting base 21. An upper cover cylinder 32 is fixedly installed in the inner cavity of the hollow cover cylinder 31. A lower hollow cover cylinder 33 communicating with the hollow cover cylinder 31 is provided at the bottom of the upper cover cylinder 32. Among them, both the upper cover cylinder 32 and the lower hollow cover cylinder 33 are conical. When the upper cover cylinder 32 and the lower hollow cover cylinder 33 are spliced together, they are in a funnel shape. Under normal conditions, part of the desiccant can also be filled in the cavity formed between the hollow cover cylinder 31 and the lower hollow cover cylinder 33.

[0020] Combined with Figures 6-7As shown, a hollow limit cover 34 is fixedly installed on the top of the upper cover tube 32, and the hollow limit cover 34 is pre-equipped with air circulation holes, so that air can flow into the inner cavity of the main shell 101 through the side and top of the hollow cover tube 31, and a heat dissipation fan assembly 35 is rotatably installed on the top of the hollow limit cover 34, and a reciprocating threaded screw 36 fixedly connected to the heat dissipation fan assembly 35 is rotatably installed on the bottom of the hollow limit cover 34, and a connecting rotating rod 37 rotatably connected to the lower hollow cover tube 33 is fixedly installed on the bottom of the reciprocating threaded screw 36, and one end of the connecting rotating rod 37 extending out of the bottom of the lower hollow cover tube 33 is fixedly connected to a motor 38 for driving it to rotate.

[0021] It is understandable that when the distribution cabinet needs to be cooled and ventilated, the user can start the motor 38, and the motor 38 can drive the connecting rod 37 and the reciprocating threaded screw 36 to rotate synchronously, thereby driving the cooling fan assembly 35 to start ventilation operation, increasing the air circulation speed in the inner cavity of the main shell 101, thereby accelerating the speed at which the outside air passes through the inner cavity of the hollow cover tube 31 and flows into the inner cavity of the main shell 101, so as to facilitate lowering the internal temperature of the distribution cabinet. At the same time, when the gas is circulating, it can preferentially pass through the desiccant stored in the hollow cover tube 31 to dry the humid gas in the air, reduce the risk of electrochemical corrosion of insulating materials and metal components, increase the service life of the distribution cabinet, and greatly reduce maintenance costs.

[0022] It should be noted that the desiccant in the lower hollow cover tube 33 is usually stored in a fixed stacking manner, the air gap between the desiccant is fixed, and the desiccant fits very tightly, which not only leads to poor air circulation, but also causes some desiccant to be unable to fully contact with the moisture in the air, thereby affecting its dehumidification effect. Therefore, maintaining an appropriate air gap can ensure that the air can circulate freely and improve the dehumidification effect.

[0023] Further, refer to Figure 7 As shown, a plurality of multi-directional stirring rods 311 are fixedly installed on the outer wall of the connecting rotating rod 37, and the plurality of multi-directional stirring rods 311 are arranged in a ring-shaped and equidistant state in sequence around the outer circumferential surface of the connecting rotating rod 37. The outer wall of the reciprocating threaded screw 36 is spirally connected to the push plate 310, and the top of the push plate 310 is arranged in a sloped shape. During the upward movement, a gap is gradually generated between the push plate 310 and the inner wall of the upper cover tube 32. The sloped setting facilitates the desiccant to fall into the inner cavity of the downward hollow cover tube 33. The outer circumferential diameter length of the push plate 310 is consistent with the inner circumferential diameter length of the bottom of the upper cover tube 32. The bottom of the reciprocating threaded screw 36 corresponds to the bottom position of the upper cover tube 32. When the push plate 310 is at the bottom of the reciprocating threaded screw 36, the push plate 310 is also at the bottom of the upper cover tube 32.

[0024] It can be understood that when the motor 38 is started, it can drive the connecting rotating rod 37, the reciprocating threaded lead screw 36 and the heat dissipation fan assembly 35 to rotate synchronously. During the rotation of the connecting rotating rod 37, it will drive a plurality of multi-directional stirring rods 311 to rotate in the inner cavity of the lower hollow cover cylinder 33, stirring the desiccant stacked in the lower hollow cover cylinder 33, not only making the air gap between the desiccants loose, but also changing the position of the desiccant, so that the desiccant can fully contact the air;

[0025] At the same time, during the rotation of the reciprocating threaded lead screw 36, it will drive the push plate 310 to move up and down reciprocally on the outer wall of the reciprocating threaded lead screw 36. When the push plate 310 moves to the bottom of the upper cover cylinder 32, it will extrude the overly loose desiccant in the lower hollow cover cylinder 33;

[0026] Under the combined action of the multi-directional stirring rod 311 and the push plate 310, the desiccant in the lower hollow cover cylinder 33 will be intermittently stirred and extruded, so that the position of the desiccant and the air gap between the desiccants are in a dynamic change state. During this process, the heat dissipation fan assembly 35 can not only more smoothly guide more external air into the main housing 101, but also the air flow can more fully contact the desiccant, achieving efficient dehumidification while dissipating heat.

[0027] Furthermore, at the same time, a directional dust scraping plate 39 fixedly connected to the connecting rotating rod 37 is slidably installed on the outer wall of the hollow cover cylinder 31. An annular through groove is opened at the top of the hollow supporting base 21, and the inner circumferential diameter length of the annular through groove is the same as the sum of the outer circumferential diameter length of the hollow cover cylinder 31 and the thickness of the directional dust scraping plate 39. The purpose of such a setting is to enable the directional dust scraping plate 39 to rotate and move on the outer wall of the hollow cover cylinder 31 and the inner wall of the annular through groove of the hollow supporting base 21 along with the rotation of the connecting rotating rod 37, so as to scrape off the dust adhering to the outer wall of the hollow cover cylinder 31, avoiding the problem that bacteria grow due to impurity adhesion and moisture intrusion, thus affecting the ventilation effect.

[0028] A lifting mechanism 2 is provided at the bottom of the power distribution cabinet main body 1. The lifting mechanism 2 includes a hollow supporting base 21 arranged below the power distribution cabinet main body 1. Two limiting sliding grooves 23 are opened at the top of the hollow supporting base 21, and a positioning type supporting bracket 24 fixedly connected to the main housing 101 is installed in the limiting sliding grooves 23.

[0029] Furthermore, referring to Figure 2 and Figures 4-5As shown in the figure, a balance cushion plate 22 is fixedly installed on the outer wall of the hollow supporting base 21. Two limiting sliding grooves 23 are opened at the top of the hollow supporting base 21. The inner cavities of the two limiting sliding grooves 23 are both slidably installed with positioning supporting brackets 24 fixedly connected to the main housing 101. And in the normal state, the two positioning supporting brackets 24 are symmetrically arranged with respect to the vertical center line of the hollow supporting base 21. The purpose of such a setting is to enable the two positioning supporting brackets 24 to center and limit the main housing 101 on the top of the hollow supporting base 21, so as to maintain the overall installation stability and convenience of the power distribution cabinet main body 1.

[0030] One side of the positioning supporting bracket 24 is connected with a first threaded supporting rod 25. Two protective baffle plates 28 are installed on the top of the hollow supporting base 21. The bottom of the first threaded supporting rod 25 is connected with a guiding sliding support plate 26. A second threaded supporting rod 27 is connected inside the guiding sliding support plate 26. The second threaded supporting rod 27 is rotatably connected with the hollow supporting base 21.

[0031] Furthermore, at the same time, one side of each of the two positioning supporting brackets 24 is in screw drive connection with a first threaded supporting rod 25. Two protective baffle plates 28 are fixedly installed on the top of the hollow supporting base 21. One end of the first threaded supporting rod 25 that penetrates through the limiting sliding groove 23 and extends into the inner cavity of the hollow supporting base 21 is rotatably connected with a guiding sliding support plate 26. A second threaded supporting rod 27 that is rotatably connected with the hollow supporting base 21 is in screw drive connection inside the guiding sliding support plate 26. The purpose of such a setting is that when the second threaded supporting rod 27 is rotated, the guiding sliding support plate 26 can drive the positioning supporting bracket 24 and the first threaded supporting rod 25 as a whole to horizontally displace left and right on the top of the hollow supporting base 21 to be suitable for limiting and clamping the main housing 101 of different sizes. When the first threaded supporting rod 25 is rotated, the positioning supporting bracket 24 can drive the main housing 101 as a whole to move up and down on its outer wall, so as to adjust the overall installation height of the power distribution cabinet main body 1.

[0032] One end of the second threaded supporting rod 27 is fixedly connected with a first connecting gear rod 29. An electric rotating rod 210 is installed inside the hollow supporting base 21. Second connecting gear rods 211 are fixedly installed at both ends of the electric rotating rod 210. The second connecting gear rods 211 are in transmission connection with the electric rotating rod 210 through a transmission belt 212.

[0033] Furthermore, combined with Figure 5As shown, one end of each of the two second threaded support rods 27 is fixedly connected to a first connecting gear rod 29. An electric rotating rod 210 is fixedly installed inside the hollow support base 21. Second connecting gear rods 211 are fixedly installed at both ends of the electric rotating rod 210. A transmission belt 212 is engaged with the outer walls of both the second connecting gear rod 211 and the electric rotating rod 210. During actual use, by driving the electric rotating rod 210 to rotate, the two second connecting gear rods 211 can be made to rotate synchronously. Then, in combination with the settings of the transmission belt 212 and the first connecting gear rod 29, the two second threaded support rods 27 can be made to rotate synchronously, and then the two positioning brackets 24 can be driven to translate synchronously, so as to clamp and limit the two sides of the main housing 101 and limit and fix the main housing 101.

[0034] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A power distribution cabinet, comprising a power distribution cabinet body, wherein the power distribution cabinet body comprises a main shell, characterized in that: A lifting mechanism is provided at the bottom of the power distribution cabinet body, and a heat dissipation and dehumidification mechanism is installed in the power distribution cabinet body; The lifting mechanism comprises a hollow supporting base arranged below the main body of the distribution cabinet, a balancing pad is fixedly installed on the outer wall of the hollow supporting base, two limiting sliding grooves are provided on the top of the hollow supporting base, and a positioning type supporting bracket fixedly connected to the main shell body is installed in the limiting sliding groove; a first threaded supporting rod is connected to one side of the positioning type supporting bracket, two protective baffles are installed on the top of the hollow supporting base, a guide sliding support plate is connected to the bottom of the first threaded supporting rod, and the inner cavity of the guide sliding support plate is spirally connected to the second threaded supporting rod rotatably connected to the hollow supporting base; the heat dissipation and dehumidification mechanism comprises a hollow cover cylinder installed at the bottom of the main shell body, an upper cover cylinder is fixedly installed in the hollow cover cylinder, a lower hollow cover cylinder is connected to the bottom of the upper cover cylinder, a hollow limiting cover is installed on the top of the upper cover cylinder, and a heat dissipation fan assembly is installed on the top of the hollow limiting cover, a reciprocating threaded screw is fixedly connected to the bottom of the heat dissipation fan assembly, and a connecting rotating rod rotatably connected to the lower hollow cover cylinder is fixedly installed at the bottom of the reciprocating threaded screw.

2. The power distribution cabinet according to claim 1, characterized in that: A plurality of multi-directional stirring rods are fixedly mounted on the connecting rotating rod, and the multi-directional stirring rods are arranged in a ring-shaped manner and in a state of equal distance in sequence around the outer circumferential surface of the connecting rotating rod.

3. The power distribution cabinet according to claim 2, characterized in that: The reciprocating threaded screw rod is connected with a push plate, the top of the push plate is provided with a slope, and the outer circumference diameter of the push plate matches the inner circumference diameter of the bottom of the upper cover cylinder.

4. The power distribution cabinet according to claim 3, characterized in that: The upper cover tube and the lower hollow cover tube are both conically arranged. When the upper cover tube and the lower hollow cover tube are spliced ​​together, they are arranged in a funnel shape. The outer circumferential diameter length of the push plate is consistent with the inner circumferential diameter length of the bottom of the upper cover tube. The bottom of the reciprocating threaded screw corresponds to the bottom position of the upper cover tube. When the push plate is at the bottom of the reciprocating threaded screw, the push plate is also at the bottom of the upper cover tube.

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