Alternating-current low-voltage power distribution cabinet

Abstract

The utility model discloses an alternating-current low-voltage power distribution cabinet, which comprises a power distribution cabinet box body which is horizontally arranged, a protective door is rotatably arranged on the front side of the power distribution cabinet box body through a hinge, a control electric appliance is fixedly arranged in the power distribution cabinet box body, and air inlet nets for filtering dust are fixedly arranged at the lower ends of the left side and the right side of the power distribution cabinet box body. The alternating-current low-voltage power distribution cabinet comprises a power distribution cabinet box body, an air inlet net is fixedly installed in the middle of the upper surface of the power distribution cabinet box body, an air outlet net is fixedly installed in the middle of the upper surface of the power distribution cabinet box body, a cooling fan used for cooling is fixedly installed at the bottom end in the power distribution cabinet box body, and cleaning mechanisms used for cleaning the air inlet net are fixedly installed on the left side and the right side in the power distribution cabinet box body. And after the limiting plate is disengaged from clamping, the upper piston plate moves upwards under the pulling action of the reset spring, so that liquefied carbon dioxide stored in the upper end of the air blowing box is discharged from the upper exhaust pipe, oxygen in the power distribution cabinet body is discharged through carbon dioxide, and the purpose of extinguishing fire in time is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage power distribution cabinets, in particular to an AC low-voltage power distribution cabinet. Background Art

[0002] A low-voltage distribution cabinet is a device used to distribute, control and protect power systems. It is commonly used in industrial and commercial buildings. It is mainly used to introduce electricity from the main power supply into the building and distribute it to various circuits and equipment. Low-voltage distribution cabinets usually include circuit breakers, contactors, fuses, current transformers and other equipment to ensure the safe operation of the power system.

[0003] In the prior art, a Chinese patent with publication number CN107706760A discloses a low-voltage distribution cabinet, including a cabinet body, a fixing frame, electrical components, an independent power supply, a timer, a dust-blowing fan, a protective grille, a dust collecting room, a dust collecting trough, a trough wall, a dust escape baffle, a base, a round shaft, a dust suction cylinder, a dust suction hole, a door panel, a glass window, and a lock edge. The cabinet body is made of stainless steel metal material, and the inner wall of the cabinet is welded with two fixing frames. A dust-blowing fan is installed on the top of the low-voltage distribution cabinet. Every once in a while, the dust in the cabinet is blown into the dust storage trough at the bottom of the cabinet. The dust storage trough can collect dust and prevent dust from flying out, effectively protecting the electrical components and ensuring the normal use of the distribution cabinet. A glass window is installed on the door panel of the distribution cabinet to facilitate a general understanding of the internal situation of the distribution cabinet.

[0004] During use, the above-mentioned device utilizes the cabinet body and door panels to protect the internal electrical components. However, in actual use, the internal circuit of the distribution cabinet is complex. After a long period of use, the wires will age. The exposed inner core of the aged wires is prone to short circuits. The high temperature generated by the short circuit can cause a fire, thereby causing certain dangers. Utility Model Content

[0005] The utility model aims to provide an AC low-voltage power distribution cabinet to solve the problem of danger caused by short circuit fire mentioned in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: an AC low-voltage distribution cabinet, comprising a horizontally placed distribution cabinet box, a protective door is rotatably installed on the front side of the distribution cabinet box by hinges, and a control electrical appliance is fixedly installed inside the distribution cabinet box, and also includes:

[0007] An air inlet net for filtering dust is fixedly installed at the lower ends of the left and right sides of the power distribution cabinet box, an air outlet net is fixedly installed at the middle position of the upper surface of the power distribution cabinet box, and a cooling fan for heat dissipation is fixedly installed at the bottom of the power distribution cabinet box;

[0008] Cleaning mechanisms for cleaning the air inlet network are fixedly installed on the left and right sides of the distribution cabinet body. The cleaning mechanism includes a bellows box with a hollow structure, and a fire extinguishing mechanism for emergency fire extinguishing is arranged on the upper end of the bellows box.

[0009] Preferably, drying strips distributed at equal intervals are fixedly installed on the outside of the air inlet net, and the drying strips are configured to be activated carbon materials for absorbing water.

[0010] Preferably, a lower exhaust pipe is fixedly installed through the lower surface of the bellows, and the bottom end of the lower exhaust pipe corresponds to the position of the air inlet net, and a transversely arranged lower piston plate is installed inside the bellows.

[0011] Preferably, a reciprocating screw rod rotatably connected to the bellows box is threadedly installed inside the lower piston plate, and the lower piston plate forms a fitting sliding structure with the bellows box through the reciprocating screw rod, and the reciprocating screw rod is driven to rotate by a driving motor fixedly installed above the bellows box.

[0012] Preferably, the fire extinguishing mechanism includes an upper exhaust pipe fixedly installed through the upper end of the side of the bellows and an upper piston plate slidably installed inside the bellows, and the upper piston plate and the reciprocating screw are slidably connected, and a return spring is fixedly installed between the upper surface of the upper piston plate and the inner wall of the bellows.

[0013] Preferably, mounting frames are fixedly mounted on the outer surfaces of the left and right sides of the bellows box, and a limiting plate that slides through the side wall of the bellows box is arranged on the inner side of the mounting frame, and the limiting plate and the upper piston plate are engaged with each other.

[0014] Preferably, an adsorption magnetic block in an electromagnet mode is fixedly mounted on the inner side wall of the mounting frame, and the adsorption magnetic block is powered by a battery assembly fixedly mounted on the outside of the blower box, and a temperature sensor and a smoke sensor for monitoring fire are fixedly mounted on the front outer surface of the blower box.

[0015] Compared with the prior art, the beneficial effects of the utility model are: the AC low-voltage distribution cabinet adopts a new structural design, the specific contents of which are as follows:

[0016] 1. A cooling fan is installed inside the power distribution cabinet. When the device is in use, the cooling fan is turned on to drive air flow. At this time, air enters the power distribution cabinet from the air inlet network and is then discharged from the air outlet network. The air flow takes away the heat inside the power distribution cabinet, thereby achieving the purpose of effective heat dissipation;

[0017] Furthermore, a cleaning mechanism is arranged inside the power distribution cabinet body, which drives the reciprocating screw to rotate by driving the motor, so that the reciprocating screw drives the lower piston plate installed with a thread passing through the outside to move back and forth up and down, thereby discharging air from the lower exhaust duct and recoil-flushing the air inlet net, thereby achieving the purpose of automatic cleaning and preventing blockage.

[0018] 2. When the temperature sensor and humidity sensor cooperate to detect a fire inside the power distribution cabinet, the battery assembly is controlled to supply power to the adsorption magnetic block, so that the adsorption magnetic block generates magnetism and attracts the limit plate to move outward, and finally the limit plate is separated from the engagement with the upper piston plate;

[0019] Furthermore, after the limit plate is disengaged, the upper piston plate moves upward under the pulling action of the return spring, thereby discharging the liquefied carbon dioxide stored in the upper end of the blower box from the upper exhaust duct, and using the carbon dioxide to discharge the oxygen inside the distribution cabinet, thereby achieving the purpose of timely extinguishing the fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the power distribution cabinet box of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the bellows box of the utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of the bellows box of the utility model;

[0024] Figure 5 For this utility model Figure 4 The enlarged structural diagram at A in the middle;

[0025] Figure 6 This is a schematic diagram of the position relationship between the upper piston plate and the lower piston plate of the utility model;

[0026] Figure 7 It is a schematic diagram of the internal structure of the mounting frame of the utility model.

[0027] In the figure: 1. Distribution cabinet body; 2. Protection door; 3. Control electrical appliances; 4. Air inlet net; 5. Air outlet net; 6. Cooling fan; 7. Drying strip; 8. Blower box; 9. Lower exhaust duct; 10. Lower piston plate; 11. Reciprocating screw rod; 12. Drive motor; 13. Upper exhaust duct; 14. Upper piston plate; 15. Reset spring; 16. Limit plate; 17. Mounting bracket; 18. Adsorption magnetic block; 19. Battery assembly; 20. Temperature sensor; 21. Smoke sensor. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Example 1: Please refer to Figure 1 and Figure 2 In order to solve the problem of poor heat dissipation effect of traditional devices, this embodiment provides the following technical solutions, which specifically disclose: a horizontally placed distribution cabinet body 1, and a protective door 2 is rotatably installed on the front side of the distribution cabinet body 1 by means of a hinge, and a control electrical appliance 3 is fixedly installed inside the distribution cabinet body 1, and an air inlet net 4 for dust filtering is fixedly installed at the lower ends of the left and right sides of the distribution cabinet body 1, and an air outlet net 5 is fixedly installed in the middle position of the upper surface of the distribution cabinet body 1, and a cooling fan 6 for heat dissipation is fixedly installed at the bottom end of the distribution cabinet body 1, and drying strips 7 distributed at equal intervals are fixedly installed on the outside of the air inlet net 4, and the drying strips 7 are set to activated carbon material for absorbing water.

[0030] When using the device, first install the control electrical appliance 3 inside the distribution cabinet body 1, then close the protective door 2 and turn on the power to work, at this time turn on the cooling fan 6 simultaneously, and use the cooling fan 6 to drive the air flow. At this time, the external air enters the distribution cabinet body 1 through the air inlet network 4, and then is discharged from the air outlet network 5, thereby taking out the heat inside the distribution cabinet body 1. When the air contacts the air inlet network 4, the moisture therein is absorbed by the drying strip 7 installed on the outside thereof, so as to prevent moisture from entering the inside of the distribution cabinet body 1 and causing damage.

[0031] Example 2: Please refer to Figure 2-Figure 4 In order to solve the problem that the air inlet net 4 is blocked after long-term use of the traditional device, the present embodiment provides the following technical solutions, which specifically disclose: cleaning mechanisms for cleaning the air inlet net 4 are fixedly installed on the left and right sides of the distribution cabinet body 1, and the cleaning mechanism includes a hollow structured blow box 8, and a lower exhaust pipe 9 is fixedly installed through the lower surface of the blow box 8, and the bottom end of the lower exhaust pipe 9 corresponds to the position of the air inlet net 4, and a transversely arranged lower piston plate 10 is installed inside the blow box 8, and a reciprocating screw 11 rotatably connected to the blow box 8 is installed through a thread inside the lower piston plate 10, and the lower piston plate 10 forms a fitting sliding structure with the blow box 8 through the reciprocating screw 11, and the reciprocating screw 11 is driven to rotate by a drive motor 12 fixedly installed above the blow box 8.

[0032] During the use of the device, the drive motor 12 is turned on regularly, and the drive motor 12 is used to drive the reciprocating screw 11 to rotate. The Shudie reciprocating screw 11 drives the lower piston plate 10 installed with a threaded hole on its outside to move up and down, and the air is discharged from the lower exhaust pipe 9, so that the exhaust airflow is used to recoil the air inlet net 4, so as to achieve the purpose of automatic cleaning and prevent it from being blocked.

[0033] Example 3: Please refer to Figure 4-Figure 7 In order to solve the problem that the traditional device cannot extinguish the fire in time when a fire occurs, thus causing great danger, the present embodiment provides the following technical solutions, which specifically disclose that: a fire extinguishing mechanism for emergency fire extinguishing is arranged at the upper end of the interior of the bellows box 8, and the fire extinguishing mechanism includes an upper exhaust pipe 13 fixedly installed through the upper end of the side of the bellows box 8 and an upper piston plate 14 slidably installed inside the bellows box 8, and the upper piston plate 14 is slidably connected with the reciprocating screw rod 11, and the upper surface of the upper piston plate 14 is fixedly installed with the inner wall of the bellows box 8. A return spring 15 is installed, and mounting frames 17 are fixedly installed on the outer surfaces of the left and right sides of the blow box 8, and a limit plate 16 is provided on the inner side of the mounting frame 17, which slides through the side wall of the blow box 8, and the limit plate 16 and the upper piston plate 14 are engaged with each other, and an adsorption magnetic block 18 is fixedly installed on the inner wall of the mounting frame 17, and the adsorption magnetic block 18 is powered by a battery assembly 19 fixedly installed on the outside of the blow box 8, and a temperature sensor 20 and a smoke sensor 21 for monitoring fire are fixedly installed on the outer surface of the front side of the blow box 8.

[0034] During use, the device uses the temperature sensor 20 and the smoke sensor 21 to detect the internal temperature and smoke concentration of the distribution cabinet body 1 in real time. When the temperature and smoke concentration exceed the warning value, the control battery assembly 19 supplies power to the adsorption magnetic block 18, so that the adsorption magnetic block 18 generates magnetism and the adsorption limit plate 16 moves, so that the limit plate 16 is disengaged from the engagement with the upper piston plate 14. At this time, the upper piston plate 14 is driven upward by the elastic action of the reset spring 15, and the carbon dioxide stored in the upper part of the blower box 8 is discharged from the upper exhaust pipe 13, so as to achieve the purpose of timely fire extinguishing.

[0035] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An AC low-voltage power distribution cabinet, comprising a horizontally placed power distribution cabinet box (1), wherein a protective door (2) is rotatably mounted on the front side of the power distribution cabinet box (1) by means of a hinge, and a control electrical appliance (3) is fixedly mounted inside the power distribution cabinet box (1), characterized in that: Also includes: An air inlet net (4) for filtering dust is fixedly installed at the lower ends of the left and right sides of the power distribution cabinet box (1), an air outlet net (5) is fixedly installed at the middle position of the upper surface of the power distribution cabinet box (1), and a cooling fan (6) for heat dissipation is fixedly installed at the bottom end of the power distribution cabinet box (1); Cleaning mechanisms for cleaning the air inlet net (4) are fixedly installed on the left and right sides of the distribution cabinet body (1), the cleaning mechanism comprising a hollow-structured bellows box (8), and a fire extinguishing mechanism for emergency fire extinguishing is arranged at the upper end of the bellows box (8).

2. The AC low-voltage power distribution cabinet according to claim 1, characterized in that: Drying strips (7) distributed at equal intervals are fixedly installed on the outside of the air inlet net (4), and the drying strips (7) are configured as activated carbon materials for absorbing water.

3. The AC low-voltage distribution cabinet according to claim 1, characterized in that: A lower exhaust pipe (9) is fixedly installed through the lower surface of the bellows box (8), and the bottom end of the lower exhaust pipe (9) corresponds to the position of the air inlet net (4), and a lower piston plate (10) arranged transversely is installed inside the bellows box (8).

4. The AC low-voltage power distribution cabinet according to claim 3, characterized in that: A reciprocating screw (11) rotatably connected to the bellows box (8) is installed through a thread running through the interior of the lower piston plate (10), and a fitting sliding structure is formed between the lower piston plate (10) and the bellows box (8), and the reciprocating screw (11) is driven to rotate by a driving motor (12) fixedly installed above the bellows box (8).

5. The AC low-voltage power distribution cabinet according to claim 1, characterized in that: The fire extinguishing mechanism comprises an upper exhaust pipe (13) fixedly installed through the upper end of the side of the bellows box (8) and an upper piston plate (14) slidably installed inside the bellows box (8), and the upper piston plate (14) is slidably connected to the reciprocating screw rod (11), and a return spring (15) is fixedly installed between the upper surface of the upper piston plate (14) and the inner wall of the bellows box (8).

6. The AC low-voltage power distribution cabinet according to claim 5, characterized in that: The outer surfaces of the left and right sides of the bellows box (8) are fixedly mounted with mounting frames (17), and the inner side of the mounting frames (17) is provided with a limit plate (16) that penetrates and slides with the side wall of the bellows box (8), and the limit plate (16) and the upper piston plate (14) are mutually engaged.

7. The AC low-voltage power distribution cabinet according to claim 6, characterized in that: An adsorption magnetic block (18) in the form of an electromagnet is fixedly mounted on the inner wall of the mounting frame (17), and the adsorption magnetic block (18) is powered by a battery assembly (19) fixedly mounted on the outside of the blower box (8), and a temperature sensor (20) and a smoke sensor (21) for monitoring fire are fixedly mounted on the front outer surface of the blower box (8).

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