A low-voltage power distribution cabinet facilitating switch replacement

The low-pressure distribution cabinet facilitates efficient air switch replacement and thermal management with dust prevention, improving maintenance efficiency and operational longevity.

CN119340818BActive Publication Date: 2025-07-15GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202411573008.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-06
Publication Date
2025-07-15
Estimated Expiration
2044-11-06

AI Technical Summary

Technical Problem

The replacement efficiency of air switches in existing low-voltage distribution cabinets is low, and multiple air switches need to be removed before replacement is required, resulting in low maintenance efficiency.

Method used

A low-voltage distribution cabinet including installation components, heat dissipation components and dustproof components is designed. The installation components realize the rapid disassembly of the air switch through the limit shaft and the limit plate. The heat dissipation component drives the fan blades to discharge heat through the mercury expansion control motor, and the dustproof component prevents dust from entering through automatic control of the baffle and the guide groove.

Benefits of technology

It improves the replacement efficiency of air switch, avoids the reduction of internal parts life due to excessive temperature, and prevents dust from entering, extending the service life of the device.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119340818B_ABST
    Figure CN119340818B_ABST
Patent Text Reader

Abstract

The present invention discloses a low-voltage power distribution cabinet for facilitating the replacement of switches, belonging to the technical field of power distribution cabinet equipment. A low-voltage power distribution cabinet for facilitating the replacement of switches includes a cabinet body. An installation component is arranged on the inner wall of the cabinet body. An installation piece is movably connected to the outside of the installation component. Installation holes are formed in the outside of the installation piece, and the installation piece is clamped to the installation component through the installation holes. The installation piece is used for installing an air switch. A heat dissipation component is arranged in the inner cavity of the cabinet body, and heat dissipation openings are formed in the outside of the cabinet body. In this low-voltage power distribution cabinet for facilitating the replacement of switches, by arranging the installation component, when replacing the air switch, the air switch to be replaced can be disassembled by pressing the limiting shaft, thereby avoiding the need to disassemble all the air switches on one side to disassemble it, improving the maintenance and replacement efficiency of the air switch of the device, and further improving the practical performance of the device.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of distribution cabinet equipment, and more specifically, to a low-voltage distribution cabinet that facilitates the replacement of switches. Background Art

[0002] A distribution cabinet is a common electrical device, which includes a cabinet body. When in use, components such as air switches need to be installed inside the distribution cabinet. There is a horizontal chute on the back of the air switch. The existing installation structure is to install a slide rail type mounting plate on the side wall of the cabinet body, and sleeved the horizontal chute of the corresponding air switch from one side of the slide rail type mounting plate, and then move it to a predetermined position to complete the installation. However, in the prior art, multiple air switches usually need to be installed on one slide rail type mounting plate. Therefore, when disassembling the air switch that needs to be replaced, it is necessary to disassemble all the air switches on one side of it before it can be disassembled, resulting in a low replacement efficiency of the air switch and reducing the practical performance. Based on this, the present invention designs a low-voltage distribution cabinet that facilitates the replacement of switches to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide a low-voltage distribution cabinet that facilitates the replacement of switches to solve the problems raised in the above background art.

[0004] A low-voltage distribution cabinet that facilitates the replacement of switches includes a cabinet body. An installation component is provided on the inner wall of the cabinet body. An installation piece is movably connected to the outside of the installation component. Installation holes are opened on the outside of the installation piece, and the installation piece is clamped to the installation component through the installation holes. The installation piece is used for installing an air switch. A heat dissipation component is arranged in the inner cavity of the cabinet body, and a heat dissipation port is opened on the outside of the cabinet body. A dust prevention component is arranged in the inner cavity of the heat dissipation port, and the dust prevention component is connected to the heat dissipation component. An outgoing line busbar is fixedly connected above the installation component in the inner cavity. A frame switch is fixedly connected above the outgoing line busbar. An incoming line busbar is fixedly connected above the frame switch. A metering watt-hour meter is fixedly connected to the side of the incoming line busbar. A lighting switch is fixedly connected below the metering watt-hour meter.

[0005] Preferably, the installation component includes a U-shaped frame fixedly connected to the inner wall of the cabinet body. A first spring is arranged inside the U-shaped frame. Both ends of the first spring are fixedly connected with a limiting plate. A limiting shaft is fixedly connected to the side of the limiting plate away from the first spring.

[0006] Preferably, the diameter of the limiting shaft is equal to the diameter of the installation hole, and the limiting shaft penetrates through the U-shaped frame and is slidably connected to the installation hole.

[0007] Preferably, the heat dissipation component includes a partition fixedly connected to the inner wall of the cabinet. Two rotating rods are rotatably connected to the outer side of the partition. One end of each rotating rod is fixedly connected with a fan blade. One end of one of the rotating rods is fixedly connected with a driven wheel, and the other end of the other rotating rod is fixedly connected with a driving wheel. A belt is sleeved between the driven wheel and the driving wheel, and a driving component is arranged on the side of the driving wheel away from the rotating rod.

[0008] Preferably, the driving component includes a fixed sleeve fixedly connected to the inner wall of the cabinet. Mercury is arranged in the inner cavity of the fixed sleeve. A first conductive plate is placed on the liquid level of the mercury. The outer side of the first conductive plate is electrically connected to a power supply. A second conductive plate is fixedly connected to the top wall of the fixed sleeve. The outer side of the second conductive plate is electrically connected to a motor. Both the power supply and the motor are fixedly installed on the inner wall of the cabinet. A first driving bevel gear is fixedly connected to the output shaft of the motor. A first driven bevel gear is meshed with the outer side of the first driving bevel gear. A driven shaft is meshed with the outer side of the first driven bevel gear. The driven shaft is fixedly connected with the driving wheel.

[0009] Preferably, the dust-proof component includes a turntable rotatably connected to the outside of the heat dissipation port. A transmission component is arranged on the side close to the inner cavity of the cabinet. A guiding groove is formed on the outer side of the turntable. A movable shaft is slidably connected to the inner cavity of the guiding groove. One end of the movable shaft is fixedly connected with a limiting block, and the other end of the movable shaft is fixedly connected with a baffle. A second spring is fixedly connected to the outer side of the baffle. The end of the second spring away from the baffle is fixedly connected with a sliding seat. The sliding seat is slidably connected with the cabinet.

[0010] Preferably, the transmission component includes a connecting frame fixedly connected to the inner wall of the cabinet. A transmission rod is rotatably connected to the outer side of the connecting frame. One end of the transmission rod is fixedly connected with the guiding groove, and the other end of the transmission rod is fixedly connected with a second driven bevel gear. A second driving bevel gear is meshed with the outer side of the second driven bevel gear. A linkage rod is fixedly connected to the outer side of the second driving bevel gear. The end of the linkage rod away from the second driving bevel gear is fixedly connected with the fan blade. A bearing frame is rotatably connected to the outer side of the linkage rod. The bearing frame is fixedly connected with the cabinet.

[0011] Preferably, a door panel is rotatably connected to the outside of the cabinet. A handle is fixedly connected to the outer side of the door panel.

[0012] Compared with the prior art, the advantages of the present invention are as follows:

[0013] 1). In the present invention, by arranging the installation component, when replacing the air switch, the device can disassemble the air switch to be replaced by pressing the limiting shaft, thus avoiding the need to disassemble all the air switches on one side to remove it, improving the maintenance and replacement efficiency of the air switch of the device, and further improving the practical performance of the device.

[0014] 2) In the present invention, by providing a heat dissipation component, when the temperature inside the cabinet body of the device reaches the warning temperature, the first conductive plate and the second conductive plate can be automatically controlled to come into contact, so that the power supply supplies power to the motor, and the fan blade can discharge the hot air inside the cabinet body through the heat dissipation port, thereby preventing the service life of the internal components of the device from being reduced due to excessive temperature, and further improving the practical performance of the device.

[0015] 3) In the present invention, by providing a dust-proof component, when the device discharges the hot air inside the cabinet body through the heat dissipation port by the fan blade, the baffle can be automatically controlled to separate from the guide groove, so as to facilitate the discharge of the hot air. Moreover, when the temperature of the device is reduced to a safe temperature, the guide groove and the baffle can be automatically controlled to coincide, thereby preventing external dust from entering the inner cavity of the cabinet body and further increasing the service life of the device. Description of the Drawings

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 is a schematic diagram of the internal structure of the cabinet body of the present invention;

[0018] Figure 3 is the Figure 2 enlarged view of the structure at A in the present invention;

[0019] Figure 4 is a schematic diagram of the structure of the heat dissipation component of the present invention;

[0020] Figure 5 is a cross-sectional view of the structure of the fixed sleeve of the present invention;

[0021] Figure 6 is a schematic diagram of the structure of the dust-proof component of the present invention;

[0022] Figure 7 is a schematic diagram of the structure of the installation component of the present invention.

[0023] Description of reference numerals in the figure: 1, cabinet body; 2, installation component; 21, U-shaped frame; 22, limiting plate; 23, first spring; 24, limiting shaft; 3, installation piece; 4, heat dissipation component; 41, partition board; 42, rotating rod; 43, fan blade; 44, driven wheel; 45, belt; 46, fixed sleeve; 47, first conductive plate; 48, second conductive plate; 49, power supply; 410, motor; 411, first driving bevel gear; 412, first driven bevel gear; 413, driving shaft; 414, driving wheel; 5, dust-proof component; 51, turntable; 52, guide groove; 53, movable shaft; 54, limiting block; 55, baffle plate; 56, second spring; 57, sliding seat; 58, connecting frame; 59, transmission rod; 510, second driven bevel gear; 511, second driving bevel gear; 512, linkage rod; 513, bearing bracket; 6, door panel; 7, handle; 8, installation hole; 9, heat dissipation port; 10, outgoing busbar; 11, frame switch; 12, incoming busbar; 13, metering watt-hour meter; 14, lighting switch. Detailed implementation mode

[0024] Embodiment: Please refer to Figure 1-7 , a low-voltage power distribution cabinet convenient for replacing switches, including a cabinet body 1, an installation component 2 is arranged on the inner wall of the cabinet body 1, an installation piece 3 is movably connected to the outside of the installation component 2, an installation hole 8 is opened on the outside of the installation piece 3, and the installation piece 3 is clamped with the installation component 2 through the installation hole 8. The installation piece 3 is used for installing an air switch. A heat dissipation component 4 is arranged in the inner cavity of the cabinet body 1, and a heat dissipation port 9 is opened on the outside of the cabinet body 1. A dust-proof component 5 is arranged in the inner cavity of the heat dissipation port 9, and the dust-proof component 5 is connected to the heat dissipation component 4. An outgoing busbar 10 is fixedly connected above the installation component 2 in the inner cavity of the 1, a frame switch 11 is fixedly connected above the outgoing busbar 10, an incoming busbar 12 is fixedly connected above the frame switch 11, a metering watt-hour meter 13 is fixedly connected to the side of the incoming busbar 12, and a lighting switch 14 is fixedly connected below the metering watt-hour meter 13. Among them, in order to facilitate the installation and disassembly of the air, a door panel 6 is rotatably connected to the outside of the cabinet body 1, and a handle 7 is fixedly connected to the outside of the door panel 6.

[0025] The installation component 2 includes a U-shaped frame 21 fixedly connected to the inner wall of the cabinet body 1. A first spring 23 is arranged inside the U-shaped frame 21. Both ends of the first spring 23 are fixedly connected with limiting plates 22. A limiting shaft 24 is fixedly connected to the side of the limiting plate 22 away from the first spring 23. The limiting shaft 24 passes through the U-shaped frame 21 and is slidably connected with the installation hole 8. Among them, in order to facilitate the installation of 3 on 21, the diameter of the limiting shaft 24 is equal to the diameter of the installation hole 8, and the limiting shaft 24 passes through the U-shaped frame 21 and is slidably connected with the installation hole 8.

[0026] When disassembling the air switch that needs to be replaced, first, press the limit shafts 24 on both sides, so that the limit shafts 24 drive the limit plates 22 fixedly connected thereto to move towards the inside of the U-shaped frame 21. When the limit plates 22 move, the first spring 23 fixedly connected thereto will be compressed, so that the limit shafts 24 are disengaged from the mounting holes 8. Then, disassemble the mounting member 3 and the air switch mounted on the mounting member 3. Then, repeat the above steps to install the new air switch on the U-shaped frame 21.

[0027] By providing the mounting assembly 2, when the device replaces the air switch, it can disassemble the air switch that needs to be replaced by pressing the limit shafts 24, thus avoiding the need to disassemble all the air switches on one side to remove it, improving the maintenance and replacement efficiency of the air switch of the device, and further improving the practical performance of the device.

[0028] The heat dissipation assembly 4 includes a partition plate 41 fixedly connected to the inner wall of the cabinet body 1. Two rotating rods 42 are rotatably connected to the outside of the partition plate 41. One end of each rotating rod 42 is fixedly connected with a fan blade 43. And one end of the other rotating rod 42 is fixedly connected with a driven wheel 44, and the other end of the other rotating rod 42 is fixedly connected with a driving wheel 414. A belt 45 is sleeved between the driven wheel 44 and the driving wheel 414. And a driving assembly is arranged on the side of the driving wheel 414 away from the rotating rod 42. The driving assembly includes a fixed sleeve 46 fixedly connected to the inner wall of the cabinet body 1. The inner cavity of the fixed sleeve 46 is filled with mercury. A first conductive plate 47 is placed on the liquid level of the mercury. The outside of the first conductive plate 47 is electrically connected to a power supply 49. A second conductive plate 48 is fixedly connected to the top wall of the fixed sleeve 46. The outside of the second conductive plate 48 is electrically connected to a motor 410. The power supply 49 and the motor 410 are both fixedly installed on the inner wall of the cabinet body 1. And a first driving bevel gear 411 is fixedly connected to the output shaft of the motor 410. A first driven bevel gear 412 is meshed with the outside of the first driving bevel gear 411. A driven bevel gear 413 is meshed with the outside of the first driven bevel gear 412. The driven shaft 413 is fixedly connected with the driving wheel 414.

[0029] When the temperature inside the cabinet body 1 rises, the mercury inside the fixed sleeve 46 will expand due to heat, causing the conductive plate 47 to move upward as the mercury level rises. When the temperature inside the cabinet body 1 reaches the warning temperature, the conductive plate 47 will come into contact with the conductive plate 48. At this time, the power supply 49 will supply power to the motor 410, causing the motor 410 to drive the first driving bevel gear 411 fixedly connected to its output shaft to rotate. When the first driving bevel gear 411 rotates, it will drive the first driven bevel gear 412 meshing with it to rotate, causing the first driven bevel gear 412 to drive the driving shaft 413 fixedly connected to it to rotate. When the driving shaft 413 rotates, it will drive the driving wheel 414 fixedly connected to it to rotate, causing the driving wheel 414 to drive the driven wheel 44 through the belt 45, and further causing the driven wheel 44 and the driving wheel 414 to rotate simultaneously. When the driven wheel 44 and the driving wheel 414 rotate, they will respectively drive the rotating rods 42 fixedly connected to them to rotate, causing the two rotating rods 42 to respectively drive the two fan blades 43 fixedly connected to them to rotate. When the fan blades 43 rotate, they will discharge the hot air inside the cabinet body 1 through the heat dissipation port 9.

[0030] By setting the heat dissipation component 4, when the temperature inside the cabinet body 1 reaches the warning temperature, the device can automatically control the contact between the conductive plate 47 and the conductive plate 48, enabling the power supply 49 to supply power to the motor 410, so that the fan blades 43 can discharge the hot air inside the cabinet body 1 through the heat dissipation port 9, thus preventing the device from reducing the service life of internal components due to excessive temperature and further improving the practical performance of the device.

[0031] The dust prevention component 5 includes a turntable 51 rotatably connected to the outside of the heat dissipation port 9. A transmission component is arranged on the side close to the inside of the cabinet body 1, and a guide groove 52 is formed on the outside of the turntable 51. A movable shaft 53 is slidably connected to the inside of the guide groove 52. One end of the movable shaft 53 is fixedly connected with a limit block 54, and the other end of the movable shaft 53 is fixedly connected with a baffle 55. A second spring 56 is fixedly connected to the outside of the baffle 55. The end of the second spring 56 far away from the baffle 55 is fixedly connected with a sliding seat 57, and the sliding seat 57 is slidably connected with the cabinet body 1. The transmission component includes a connecting frame 58 fixedly connected to the inner wall of the cabinet body 1. A transmission rod 59 is rotatably connected to the outside of the connecting frame 58. One end of the transmission rod 59 is fixedly connected with the guide groove 52, and the other end of the transmission rod 59 is fixedly connected with a second driven bevel gear 510. The outside of the second driven bevel gear 510 is meshed with a second driving bevel gear 511. A linkage rod 512 is fixedly connected to the outside of the second driving bevel gear 511. The end of the linkage rod 512 far away from the second driving bevel gear 511 is fixedly connected with the fan blade 43, and a bearing bracket 513 is rotatably connected to the outside of the linkage rod 512. The bearing bracket 513 is fixedly connected with the cabinet body 1.

[0032] When the fan blade 43 rotates, it will drive the linkage rod 512 fixedly connected thereto to rotate, so that the linkage rod 512 drives the second driving bevel gear 511 fixedly connected thereto to rotate. When the second driving bevel gear 511 rotates, it will drive the second driven bevel gear 510 engaged therewith to rotate, so that the second driven bevel gear 510 drives the transmission rod 59 fixedly connected thereto to rotate. When the transmission rod 59 rotates, it will drive the turntable 51 fixedly connected thereto to rotate, so that the turntable 51 drives the guide groove 52 to rotate synchronously. At this time, the movable shaft 53 will, under the action of centrifugal force, drive the baffle 55 fixedly connected thereto to move outward, so that the baffle 55 is disengaged from the guide groove 52. At this time, the hot air in the inner cavity of the cabinet body 1 will be discharged through the guide groove 52. When the temperature in the inner cavity of the cabinet body 1 drops to the safe temperature, the first conductive plate 47 will be disengaged from the second conductive plate 48, so that the motor 410 stops working. At this time, the baffle 55 will, under the elastic force of the second spring 56, move to the initial position, so that the baffle 55 coincides with the guide groove 52, preventing external dust from entering the inner cavity of the cabinet body 1.

[0033] By providing the dust-proof component 5, when the device discharges the hot air in the inner cavity of the cabinet body 1 through the heat dissipation port 9 by means of the fan blade 43, it can automatically control the separation of the baffle 55 from the guide groove 52, thus facilitating the discharge of the hot air. Moreover, when the device reduces the temperature to the safe temperature, it can automatically control the coincidence of the guide groove 52 and the baffle 55, thus preventing external dust from entering the inner cavity of the cabinet body 1 and further improving the service life of the device.

[0034] Working principle of the present invention:

[0035] When disassembling the air switch to be replaced, first, press the limiting shafts 24 on both sides, so that the limiting shafts 24 drive the limiting plates 22 fixedly connected thereto to move towards the inner side of the U-shaped frame 21. When the limiting plates 22 move, they will compress the first springs 23 fixedly connected thereto, so that the limiting shafts 24 are disengaged from the mounting holes 8. Then, disassemble the mounting member 3 and the air switch mounted on the mounting member 3. Then, repeat the above steps to install the new air switch on the U-shaped frame 21;

[0036] When the temperature inside the cabinet body 1 rises, the mercury inside the fixed sleeve 46 will expand due to heat, causing the conductive plate 47 to move upward as the mercury level rises. When the temperature inside the cabinet body 1 reaches the warning temperature, the conductive plate 47 will come into contact with the conductive plate 48. At this time, the power supply 49 will supply power to the motor 410, causing the motor 410 to drive the driving bevel gear 411 fixedly connected to its output shaft to rotate. When the driving bevel gear 411 rotates, it will drive the driven bevel gear 412 meshing with it to rotate, causing the driven bevel gear 412 to drive the drive shaft 413 fixedly connected to it to rotate. When the drive shaft 413 rotates, it will drive the driving wheel 414 fixedly connected to it to rotate, causing the driving wheel 414 to drive the driven wheel 44 through the belt 45, and then causing the driven wheel 44 and the driving wheel 414 to rotate simultaneously. When the driven wheel 44 and the driving wheel 414 rotate, they will respectively drive the rotating rods 42 fixedly connected to them to rotate, causing the two rotating rods 42 to drive the fan blades 43 fixedly connected to them to rotate respectively. When the fan blades 43 rotate, they will discharge the hot air inside the cabinet body 1 through the heat dissipation port 9;

[0037] When the fan blades 43 rotate, they will drive the linkage rod 512 fixedly connected to them to rotate, causing the linkage rod 512 to drive the driving bevel gear 511 fixedly connected to it to rotate. When the driving bevel gear 511 rotates, it will drive the driven bevel gear 510 meshing with it to rotate, causing the driven bevel gear 510 to drive the transmission rod 59 fixedly connected to it to rotate. When the transmission rod 59 rotates, it will drive the turntable 51 fixedly connected to it to rotate, causing the turntable 51 to drive the guide groove 52 to rotate synchronously. At this time, the movable shaft 53 will, under the action of centrifugal force, drive the baffle 55 fixedly connected to it to move outward, causing the baffle 55 to disengage from the guide groove 52. At this time, the hot air inside the cabinet body 1 will be discharged through the guide groove 52. When the temperature inside the cabinet body 1 drops to the safe temperature, the conductive plate 47 will disengage from the conductive plate 48, causing the motor 410 to stop working. At this time, the baffle 55 will, under the elastic force of the second spring 56, move to the initial position, causing the baffle 55 to coincide with the guide groove 52 to prevent external dust from entering the interior of the cabinet body 1.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-voltage power distribution cabinet facilitating switch replacement, comprising a cabinet body (1), characterized in that: An installation component (2) is provided on the inner wall of the cabinet body (1). An installation piece (3) is movably connected to the outside of the installation component (2). An installation hole (8) is formed on the outside of the installation piece (3), and the installation piece (3) is snap-connected to the installation component (2) through the installation hole (8). The installation piece (3) is used for installing an air switch. A heat dissipation component (4) is arranged in the inner cavity of the cabinet body (1), and a heat dissipation port (9) is formed on the outside of the cabinet body (1). A dust-proof component (5) is arranged in the inner cavity of the heat dissipation port (9). The dust-proof component (5) is connected to the heat dissipation component (4). An outgoing line busbar (10) is fixedly connected above the installation component (2) in the inner cavity of the (1). A frame switch (11) is fixedly connected above the outgoing line busbar (10). An incoming line busbar (12) is fixedly connected above the frame switch (11). A metering watt-hour meter (13) is fixedly connected to the side of the incoming line busbar (12). A lighting switch (14) is fixedly connected below the metering watt-hour meter (13); Among them, the dust-proof component (5) includes a turntable (51) rotatably connected to the outside of the heat dissipation port (9). A transmission component is arranged on one side close to the inner cavity of the cabinet body (1). A guide groove (52) is formed on the outside of the turntable (51). A movable shaft (53) is slidably connected to the inner cavity of the guide groove (52). A limiting block (54) is fixedly connected to one end of the movable shaft (53), and a baffle (55) is fixedly connected to the other end of the movable shaft (53). A second spring (56) is fixedly connected to the outside of the baffle (55). The end of the second spring (56) away from the baffle (55) is fixedly connected to a sliding seat (57). The sliding seat (57) is slidably connected to the cabinet body (1); The transmission component includes a connecting frame (58) fixedly connected to the inner wall of the cabinet body (1). A transmission rod (59) is rotatably connected to the outside of the connecting frame (58). One end of the transmission rod (59) is fixedly connected to the guide groove (52), and a second driven bevel gear (510) is fixedly connected to the other end of the transmission rod (59). A second driving bevel gear (511) is meshed with the outside of the second driven bevel gear (510). A linkage rod (512) is fixedly connected to the outside of the second driving bevel gear (511). The end of the linkage rod (512) away from the second driving bevel gear (511) is fixedly connected to a fan blade (43), and a bearing bracket (513) is rotatably connected to the outside of the linkage rod (512). The bearing bracket (513) is fixedly connected to the cabinet body (1).

2. The low-voltage power distribution cabinet for conveniently replacing a switch according to claim 1, wherein: The installation component (2) includes a U-shaped frame (21) fixedly connected to the inner wall of the cabinet body (1). A first spring (23) is arranged inside the U-shaped frame (21). Limiting plates (22) are fixedly connected to both ends of the first spring (23). A limiting shaft (24) is fixedly connected to the side of the limiting plate (22) away from the first spring (23).

3. The low-voltage power distribution cabinet facilitating switch replacement according to claim 2, wherein: The diameter of the limiting shaft (24) is equal to the diameter of the installation hole (8), and the limiting shaft (24) penetrates through the U-shaped frame (21) and is slidably connected to the installation hole (8).

4. A low-voltage power distribution cabinet with a conveniently replaceable switch according to claim 1, characterized in that: The heat dissipation component (4) includes a partition plate (41) fixedly connected to the inner wall of the cabinet body (1). Two rotating rods (42) are rotatably connected to the outer side of the partition plate (41). One end of each rotating rod (42) is fixedly connected to a fan blade (43). One end of one of the rotating rods (42) is fixedly connected to a driven wheel (44), and the other end of the other rotating rod (42) is fixedly connected to a driving wheel (414). A belt (45) is sleeved between the driven wheel (44) and the driving wheel (414). A driving component is arranged on the side of the driving wheel (414) away from the rotating rod (42).

5. The low-voltage power distribution cabinet for conveniently replacing a switch according to claim 4, characterized in that: The driving component includes a fixed sleeve (46) fixedly connected to the inner wall of the cabinet body (1). Mercury is arranged in the inner cavity of the fixed sleeve (46). A first conductive plate (47) is placed on the liquid surface of the mercury. The first conductive plate (47) is electrically connected to a power source (49) on the outside. A second conductive plate (48) is fixedly connected to the top wall of the fixed sleeve (46). The second conductive plate (48) is electrically connected to a motor (410) on the outside. The power source (49) and the motor (410) are both fixedly installed on the inner wall of the cabinet body (1). A first driving bevel gear (411) is fixedly connected to the output shaft of the motor (410). A first driven bevel gear (412) is meshed with the outside of the first driving bevel gear (411). A driven bevel gear (413) is meshed with the outside of the first driven bevel gear (412). The driven bevel gear (413) is fixedly connected to the driving wheel (414).

6. A low-voltage power distribution cabinet facilitating switch replacement according to claim 1, characterized in that: A door panel (6) is rotatably connected to the outside of the cabinet body (1). A handle (7) is fixedly connected to the outside of the door panel (6).

Citation Information

Patent Citations

  • Intelligent electrical switch cabinet and using method thereof

    CN112886409A

  • Energy storage power distribution cabinet

    CN221380048U