Power distribution cabinet with internal dry leakage protection

Abstract

This invention discloses a power distribution cabinet with internal drying and leakage prevention, comprising an aluminum alloy cabinet body. A protective door is rotatably mounted on the front of the cabinet body, and a display instrument is fixedly mounted on the upper front surface of the cabinet body. An installation plate is fixedly mounted in the middle of the cabinet body, with electrical components fixedly mounted on the front side of the installation plate and heat dissipation fins fixedly mounted on the rear surface of the installation plate. Upper ventilation grilles are provided on the left and right sides of the upper end of the cabinet body. This power distribution cabinet with internal drying and leakage prevention utilizes a cooling fan inside the cabinet body, combined with the upper and lower ventilation grilles, to form a heat dissipation duct, thereby achieving the purpose of heat dissipation inside the device. During this process, water-absorbing sponges on the upper surfaces of the left and right ends of the partition plate absorb moisture from the air, thus achieving the purpose of drying and preventing moisture from entering the device and causing damage.

Description

Technical Field

[0001] This invention relates to the field of power distribution cabinet technology, specifically a power distribution cabinet with internal drying and leakage prevention. Background Technology

[0002] Power distribution cabinets are an important component of low-voltage power distribution systems. They are specifically responsible for distributing, controlling, and managing electrical energy from upstream substations or transformers to high-power electrical equipment, especially motors (such as water pumps, fans, compressors, and conveyor belts). They may also supply power to other power loads (such as welding machines and large lighting equipment).

[0003] In the prior art, Chinese patent application number CN201711068035.9 discloses a power distribution cabinet. The upper end face of the base is provided with multiple support tubes along its circumferential direction. The support tubes are provided with elastic elements. The side wall of the cabinet is provided with multiple pins that match the support tubes. The multiple pins are detachably inserted into the corresponding support tubes and contact the elastic elements so that the cabinet is elastically and detachably fixed to the base. The cabinet is provided with an electrical compartment and an operating compartment from left to right. The electrical compartment is provided with a support mechanism that can be raised and lowered in the vertical direction. The operating compartment is provided with a control mechanism connected to the support mechanism and capable of controlling the raising and lowering of the support mechanism. It can facilitate the installation, disassembly and maintenance of heavy main electrical components without the need for auxiliary tools, and also has a good shock absorption effect.

[0004] In the prior art, Chinese patent application number CN201811052616.8 discloses a power distribution cabinet, including a cabinet body and a cabinet door rotatably connected to the cabinet body for closing the cabinet body. The cabinet body has a through hole on its side wall, the through hole being rectangular. The cabinet body has a sliding groove communicating with the through hole, and a sliding block for closing the through hole is slidably disposed in the sliding groove. The cabinet body is provided with a fixing component for fixing the sliding block. The side wall of the through hole at the end far from the sliding groove has multiple first semicircular grooves arranged vertically. The sliding block has multiple second semicircular grooves that cooperate with the multiple first semicircular grooves to allow the line to pass through. The cabinet body is provided with multiple fixing clips arranged vertically for clamping the line.

[0005] In the prior art, Chinese patent application number CN201810417783.1 discloses a power distribution cabinet, including a box body, with straight steel frames symmetrically arranged on both sides of the lower part of the box body. The straight steel frames include angle steel seats fixed to the lower part of the box body. A support seat is vertically arranged at the outer end of the angle steel seat. The free end of the support seat extends downward. Half of the length of the angle steel seat is less than or equal to the width of the support seat. A connecting rod is provided at the free end of the support seat. A connecting protrusion is provided at the front of the connecting rod. The connecting rod can freely extend and retract along the length direction of the support seat. A locking member is provided between the connecting rod and the support seat.

[0006] Based on the above information, it can be seen that the power distribution cabinets in the prior art are generally made of metal enclosures. Therefore, they usually need to be equipped with heat dissipation structures during use. However, in actual use, heat dissipation requires drawing outside air into the cabinet to form airflow. In this process, moisture in the air is also drawn in, causing the inside of the distribution cabinet to become damp and damaged. Summary of the Invention

[0007] The purpose of this invention is to provide a power distribution cabinet with internal drying and leakage prevention, so as to solve the problem of internal moisture damage to ligands mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a power distribution cabinet with internal dryness and leakage prevention, comprising a cabinet body made of aluminum alloy, a protective door rotatably mounted on the front side of the cabinet body, and a display instrument fixedly mounted on the upper front surface of the cabinet body. A mounting plate is fixedly mounted in the middle of the interior of the cabinet body, and electrical components are fixedly mounted on the front side of the mounting plate. Heat dissipation fins are fixedly mounted on the rear surface of the mounting plate, and heat dissipation fins are also provided on the back surface of the mounting plate to improve the heat conduction effect at the location of the electrical components. Upper ventilation grilles are provided on the left and right sides of the upper end of the cabinet body, and a lower ventilation grille is provided on the lower front side of the cabinet body. The internal cooling fan of the distribution cabinet, along with the upper and lower ventilation grilles, forms a cooling air duct to achieve heat dissipation for the internal components. A receiving groove is provided inside the lower part of the distribution cabinet, with a grounding plate at the bottom of the inner side of the groove. A horizontally arranged partition plate is fixedly installed at the upper part of the internal components of the distribution cabinet, and absorbent sponges are provided on the upper sides of both ends of the partition plate to dry the air. The absorbent sponges absorb moisture from the air, thus achieving a drying effect and preventing moisture from entering the device and causing damage. The absorbent sponges are connected to a rotating mechanism below the partition plate and rotate slowly.

[0009] Preferably, a cooling fan is installed at the lower end of the inside of the power distribution cabinet, and the cooling fan is connected to the lower ventilation grille through a receiving groove.

[0010] Preferably, the grounding plate and the bottom of the distribution cabinet form a through-type sliding structure, and a terminal block is fixedly installed on the upper surface of the grounding plate.

[0011] Preferably, the upper end of the terminal block is connected to a connecting wire that connects to the metal components inside the distribution cabinet, and a compression spring is fixedly installed between the upper surface of the grounding plate and the inner wall of the receiving groove. The compression spring compresses the grounding plate, keeping it in contact with the ground. The terminal block on the upper surface of the grounding plate is connected to the metal components inside the device through the connecting wire, thereby achieving the purpose of grounding.

[0012] Preferably, the partition plate has through holes arranged in a matrix to evenly disperse the heat dissipation airflow and achieve better heat dissipation effect. A corresponding extrusion plate is provided above the partition plate, and the lower end of the extrusion plate is set with an inclined structure.

[0013] Preferably, the rotating mechanism includes mounting rods rotatably mounted above the left and right ends of the partition plate, and the absorbent sponge and the mounting rods form a through-type disassembly and installation structure.

[0014] Preferably, a driven worm gear located below the partition plate is coaxially fixedly installed at the bottom of the mounting rod, and a driving worm gear is meshed with the side of the driven worm gear to drive its rotation. The driving worm gear is driven to rotate by a drive motor fixedly installed on the lower surface of the partition plate. The drive motor drives the driving worm gear to rotate, and during the rotation of the driving worm gear, the driven worm gear meshing with it drives the mounting rod to rotate, thereby causing the mounting rod to drive the absorbent sponge to rotate slowly, thereby improving the uniformity of contact between the sponge and the device.

[0015] Preferably, a return spring is fixedly installed between the lower surface of the extrusion plate and the lower surface of the partition plate, and an electromagnet for adsorbing the extrusion plate is fixedly installed on the upper surface of the partition plate. The extrusion cam intermittently extrudes the control button. When the control button is extruded, the electromagnet is activated. The electromagnet's magnetism attracts the extrusion plate to move downward, causing the extrusion plate to extrude the water-absorbing sponge, thereby squeezing out the water from the water-absorbing sponge.

[0016] Preferably, a control button for controlling the electromagnet is fixedly installed on the lower surface of the partition plate, and the control button corresponds to the position of the extrusion cam fixedly installed at the end of the active worm gear.

[0017] Preferably, water collection tanks are fixedly installed on the upper surfaces of the left and right ends of the partition plate, and the positions of the water collection tanks and the water-absorbing sponges correspond to each other. Furthermore, a drain pipe connected to the outside of the distribution cabinet is fixedly installed on the side of the water collection tank.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the power distribution cabinet with internal drying and leakage prevention adopts a novel structural design, the specific details of which are as follows: 1. The cooling fan inside the distribution cabinet is used in conjunction with the upper and lower ventilation grilles to form a heat dissipation air duct, thereby achieving the purpose of heat dissipation inside the device. During this process, the water-absorbing sponges on the upper surfaces of the left and right ends of the partition plate absorb the moisture in the air, thereby achieving the purpose of drying and preventing moisture in the air from entering the device and causing moisture damage. Furthermore, the partition plate has through holes arranged in a matrix pattern inside, which are used to evenly disperse the heat dissipation airflow and achieve better heat dissipation effect. At the same time, heat dissipation fins are set on the back surface of the mounting plate to improve the heat conduction effect at the location of electrical components.

[0019] 2. A drive motor is fixedly installed on the lower surface of the partition plate. The drive motor drives the active worm gear to rotate. During the rotation of the active worm gear, the driven worm wheel that meshes with it drives the mounting rod to rotate. This causes the mounting rod to drive the water-absorbing sponge to rotate slowly, thereby improving the uniformity of contact between the sponge and the device and maintaining the water absorption effect of the sponge. Furthermore, during the rotation of the active worm gear, the compression cam that is fixedly installed with it rotates synchronously. The compression cam intermittently compresses the control button. When the control button is compressed, the electromagnet is activated. The electromagnet's magnetism attracts the compression plate to move downward, causing the compression plate to compress the water-absorbing sponge, thereby squeezing out the water from the sponge. The squeezed water is collected in the water collection tank and finally discharged from the drain pipe.

[0020] 3. A receiving groove is opened at the lower end of the inside of the distribution cabinet. A grounding plate is installed inside the receiving groove. The grounding plate is pressed by the compression action of the compression spring to keep it in contact with the ground. The terminal on the upper surface of the grounding plate is connected to the metal parts inside the device through the connecting wire to achieve the purpose of grounding and reduce the danger of leakage current. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the power distribution cabinet of the present invention; Figure 3 This is a schematic diagram of the back structure of the mounting plate of the present invention; Figure 4 This is a schematic diagram of the internal structure of the receiving groove of the present invention; Figure 5 This is a schematic diagram showing the positional relationship between the separator plate and the extrusion plate of the present invention; Figure 6 This is a schematic diagram of the upper surface structure of the partition plate of the present invention; Figure 7 This is a schematic diagram of the lower surface structure of the partition plate of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at point A in the middle; Figure 9 This is a schematic diagram showing the connection between the absorbent sponge and the mounting rod of the present invention.

[0022] In the diagram: 1. Distribution cabinet enclosure; 2. Protective door; 3. Display instrument; 4. Mounting plate; 401. Heat sink fins; 5. Electrical components; 6. Upper ventilation grille; 7. Lower ventilation grille; 8. Cooling fan; 9. Receiving slot; 10. Grounding plate; 11. Terminal block; 12. Connecting wire; 13. Compression spring; 14. Partition plate; 15. Through hole; 16. Mounting rod; 17. Absorbent sponge; 18. Water collection tank; 19. Drain pipe; 20. Compression plate; 21. Return spring; 22. Electromagnet; 23. Driven worm gear; 24. Driving worm gear; 25. Drive motor; 26. Compression cam; 27. Control buttons. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Example 1: Please refer to Figures 1-3 In order to achieve the purpose of drying, this embodiment provides the following technical solution, specifically: an aluminum alloy distribution cabinet box 1, a protective door 2 is rotatably installed on the front side of the distribution cabinet box 1, and a display instrument 3 is fixedly installed on the upper front surface of the distribution cabinet box 1. An installation plate 4 is fixedly installed in the middle position inside the distribution cabinet box 1, and an electrical component 5 is fixedly installed on the front side of the installation plate 4. A heat dissipation fin 401 is fixedly installed on the rear surface of the installation plate 4. A horizontally arranged partition plate 14 is fixedly installed at the upper end inside the distribution cabinet box 1, and water-absorbing sponges 17 for drying air are provided on the upper side of the left and right ends of the partition plate 14. The water-absorbing sponges 17 are connected to the rotating mechanism below the partition plate 14 and rotate slowly. A cooling fan 8 is installed at the lower end inside the distribution cabinet box 1, and the cooling fan 8 is connected to the lower ventilation grille 7 through the receiving groove 9.

[0025] During installation, the mounting plate 4 is first fixed inside the distribution cabinet 1 using bolts. Then, the electrical components 5 to be used are installed on the front of the mounting plate 4 and connected with wires. Finally, the protective door 2 is closed and the circuit is connected for use. During use, the cooling fan 8 inside the distribution cabinet 1 is turned on, and the cooling fan 8 drives the airflow. At this time, the outside air enters the distribution cabinet 1 through the upper ventilation grille 6 and then exits through the lower ventilation grille 7, thereby using the airflow to achieve the purpose of heat dissipation inside the device (heat dissipation fins 401 are fixedly installed on the outer surface of the back of the mounting plate 4, and the heat dissipation fins 401 improve the heat conduction effect at the position of the electrical components 5). When the air enters the distribution cabinet 1 through the upper ventilation grille 6, it comes into contact with the water-absorbing sponge 17, which absorbs the moisture in the air, reducing the damage caused by moisture entering the distribution cabinet 1. In addition, the partition plate 14 has through holes 15 arranged in a matrix, which evenly disperse the airflow to achieve a better heat dissipation effect.

[0026] Example 2: Please refer to Figure 4 In order to achieve the purpose of grounding and reducing the risk of leakage, this embodiment provides the following technical solution, which specifically discloses: upper ventilation grilles 6 are provided on the left and right sides of the upper end of the distribution cabinet box 1, and lower ventilation grilles 7 are provided on the front side of the lower end of the distribution cabinet box 1. A receiving groove 9 is opened inside the lower end of the distribution cabinet box 1. A grounding plate 10 is provided at the bottom of the inner side of the receiving groove 9 and contacts the ground. The grounding plate 10 and the bottom of the distribution cabinet box 1 form a through-type upper and lower sliding structure. A terminal post 11 is fixedly installed on the upper surface of the grounding plate 10. A connecting wire 12 connected to the metal parts inside the distribution cabinet box 1 is connected to the upper end of the terminal post 11. A compression spring 13 is fixedly installed between the upper surface of the grounding plate 10 and the inner wall of the receiving groove 9.

[0027] During device installation, the connecting wire 12 inside the receiving groove 9 is connected to the terminal block 11 on the upper surface of the grounding plate 10 (the connecting wire 12 is connected to the metal parts inside the distribution cabinet box 1 for grounding to reduce leakage), and the contact between the grounding plate 10 and the ground is ensured by the elastic compression of the compression spring 13.

[0028] Example 3: Please refer to Figures 5-9To improve the drying effect, this embodiment provides the following technical solution: A matrix of through holes 15 are provided inside the partition plate 14, and a corresponding extrusion plate 20 is provided above the partition plate 14. The lower end of the extrusion plate 20 is inclined. The rotating mechanism includes mounting rods 16 rotatably mounted above the left and right ends of the partition plate 14. The absorbent sponge 17 and the mounting rods 16 form a through-type detachable and installable structure. A driven worm gear 23 located below the partition plate 14 is coaxially fixedly mounted at the bottom of the mounting rods 16. A driving worm gear 24 for driving the driven worm gear 23 is meshed with on the side of the driven worm gear 23. The driving worm gear 24 is composed of… A drive motor 25, fixedly installed on the lower surface of the partition plate 14, drives the rotation. A return spring 21 is fixedly installed between the lower surface of the extrusion plate 20 and the lower surface of the partition plate 14. An electromagnet 22 for adsorbing the extrusion plate 20 is fixedly installed on the upper surface of the partition plate 14. A control button 27 for controlling the electromagnet 22 is fixedly installed on the lower surface of the partition plate 14. The control button 27 corresponds to the position of the extrusion cam 26 fixedly installed at the end of the drive worm gear 24. Water collection tanks 18 are fixedly installed on the upper surfaces of the left and right ends of the partition plate 14. The positions of the water collection tanks 18 and the water-absorbing sponge 17 are corresponding. A drain pipe 19 connected to the outside of the distribution cabinet box 1 is fixedly installed on the side of the water collection tank 18.

[0029] During the use of the device, the drive motor 25 on the lower surface of the partition plate 14 is turned on. The drive motor 25 drives the active worm gear 24 to rotate. During the rotation of the active worm gear 24, it drives the driven worm wheel 23 meshing with its side to rotate. In turn, the driven worm wheel 23 drives the mounting rod 16 to rotate. The mounting rod 16 drives the water-absorbing sponge 17 to rotate. This slow rotation of the water-absorbing sponge 17 makes the contact between the water-absorbing sponge 17 and the air entering the device more uniform, improving the water absorption effect of the water-absorbing sponge 17. In addition, the rotation of the active worm gear 24 drives the driven worm wheel 23 meshing with the driven worm wheel 24 to rotate. The fixedly installed compression cam 26 rotates synchronously, and the compression cam 26 intermittently compresses the control button 27 on the lower surface of the partition plate 14. When the control button 27 is compressed, it controls the electromagnet 22 to be activated. At this time, the electromagnet 22 generates magnetism and attracts the compression plate 20 downward (the compression plate 20 is slidably connected to the upper end of the mounting rod 16). The compression plate 20 compresses the water-absorbing sponge 17, thereby squeezing out the water absorbed in the water-absorbing sponge 17. The squeezed water is collected by the water collection tank 18 and finally discharged from the water collection tank 18 to the outside of the distribution cabinet box 1 through the drain pipe 19.

[0030] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A power distribution cabinet with internal drying and leakage prevention, comprising a cabinet body (1) made of aluminum alloy, wherein a protective door (2) is rotatably installed on the front side of the cabinet body (1), and a display instrument (3) is fixedly installed on the upper front surface of the cabinet body (1), characterized in that, Also includes: An installation plate (4) is fixedly installed in the middle of the inside of the power distribution cabinet (1), and an electrical component (5) is fixedly installed on the front side of the installation plate (4), and a heat dissipation fin (401) is fixedly installed on the rear surface of the installation plate (4). The upper left and right sides of the power distribution cabinet box (1) are provided with upper ventilation grilles (6), and the lower front side of the power distribution cabinet box (1) is provided with lower ventilation grilles (7). The lower interior of the power distribution cabinet box (1) is provided with a receiving groove (9), and the bottom of the receiving groove (9) is provided with a grounding plate (10) in contact with the ground. The upper part of the power distribution cabinet (1) is fixedly installed with a horizontally arranged partition plate (14), and the upper sides of the left and right ends of the partition plate (14) are provided with water-absorbing sponges (17) for drying air, and the water-absorbing sponges (17) are connected to the rotating mechanism below the partition plate (14) and rotate slowly.

2. A power distribution cabinet with internal drying and leakage prevention as described in claim 1, characterized in that: The lower end of the power distribution cabinet box (1) is equipped with a cooling fan (8), and the cooling fan (8) is connected to the lower ventilation grille (7) through the receiving groove (9).

3. A power distribution cabinet with internal drying and leakage prevention as described in claim 1, characterized in that: The grounding plate (10) and the bottom of the distribution cabinet box (1) form a through-type sliding structure, and the upper surface of the grounding plate (10) is fixedly installed with a terminal block (11).

4. A power distribution cabinet with internal drying and leakage prevention according to claim 3, characterized in that: The upper end of the terminal block (11) is connected to a connecting wire (12) that is connected to the metal parts inside the power distribution cabinet (1), and a compression spring (13) is fixedly installed between the upper surface of the ground plate (10) and the inner wall of the receiving groove (9).

5. A power distribution cabinet with internal drying and leakage prevention according to claim 1, characterized in that: The partition plate (14) has through holes (15) arranged in a matrix, and a corresponding extrusion plate (20) is provided above the partition plate (14), and the lower end of the extrusion plate (20) is set as an inclined structure.

6. A power distribution cabinet with internal drying and leakage prevention according to claim 5, characterized in that: The rotating mechanism includes mounting rods (16) that are rotatably installed above the left and right ends of the partition plate (14), and the water-absorbing sponge (17) and the mounting rods (16) form a through-type disassembly and installation structure.

7. A power distribution cabinet with internal drying and leakage prevention according to claim 6, characterized in that: The bottom of the mounting rod (16) is coaxially fixedly mounted with a driven worm gear (23) located below the partition plate (14), and the driven worm gear (23) is meshed with a driving worm (24) for driving its rotation on the side, and the driving worm (24) is driven to rotate by a drive motor (25) fixedly mounted on the lower surface of the partition plate (14).

8. A power distribution cabinet with internal drying and leakage prevention according to claim 7, characterized in that: A reset spring (21) is fixedly installed between the lower surface of the extrusion plate (20) and the lower surface of the partition plate (14), and an electromagnet (22) for adsorbing the extrusion plate (20) is fixedly installed on the upper surface of the partition plate (14).

9. A power distribution cabinet with internal drying and leakage prevention according to claim 8, characterized in that: The lower surface of the partition plate (14) is fixedly equipped with a control button (27) for controlling the electromagnet (22), and the control button (27) corresponds to the position of the extrusion cam (26) fixedly installed at the end of the active worm (24).

10. A power distribution cabinet with internal drying and leakage prevention according to claim 9, characterized in that: Water collection tanks (18) are fixedly installed on the upper surfaces of the left and right ends of the partition plate (14), and the water collection tanks (18) correspond to the positions of the water-absorbing sponge (17). A drain pipe (19) connected to the outside of the power distribution cabinet box (1) is fixedly installed on the side of the water collection tank (18).

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