CN221929085U - A ventilation device for high and low voltage distribution cabinet - Google Patents

Abstract

The utility model provides a high and low voltage distribution cabinet ventilation device, which relates to the field of electrical devices, including a cabinet, a temperature sensor is fixed to the inner wall of the cabinet, two suction fans are symmetrically fixed to the bottom of the rear surface of the cabinet, two exhaust fans are symmetrically fixed to the top of the rear surface of the cabinet, and a shell is fixed to the bottom of the rear surface of the cabinet. By setting the temperature sensor, the suction fan and the exhaust fan, the temperature sensor can monitor the temperature in the high and low voltage distribution cabinet in real time. When it is detected that the temperature in the distribution cabinet is too high and exceeds the set value, the suction fan and the exhaust fan are automatically started, and the suction fan sucks the normal temperature air outside the distribution cabinet into the cabinet, and the sucked normal temperature air blows the high temperature air in the cabinet upward, so that the high temperature air can be discharged from the cabinet by the exhaust fan above, so that the ventilation device can ventilate the distribution cabinet by itself, and has a good cooling and heat dissipation effect.

Description

A ventilation device for high and low voltage distribution cabinet

Technical Field

The utility model relates to the field of electrical devices, in particular to a ventilation device for a high and low voltage distribution cabinet.

Background Art

As the name implies, high and low voltage distribution cabinets are distribution equipment used for power distribution, control, metering and cable connection in the power supply system. Generally, power supply bureaus and substations use high voltage switch cabinets, which are then stepped down by transformers and led out to low voltage distribution cabinets. The low voltage distribution cabinets are then led to the distribution boards, control boxes and switch boxes of various power users. The distribution cabinets are equipped with some switches, circuit breakers, fuses, buttons, indicator lights, meters, wires and other protective devices assembled into one to meet the design functional requirements.

For high and low voltage distribution cabinets, the problem of high internal temperature will appear after long-term use. High temperature will affect the service life of the electronic components therein. It is necessary to process the inside of the distribution cabinet when the temperature is high to reduce the temperature inside the cabinet. Therefore, we propose a high and low voltage distribution cabinet ventilation device to solve the above problem.

Utility Model Content

The purpose of the utility model is to solve the problem that the internal temperature of the high and low voltage distribution cabinets will be high after long-term use. The high temperature will affect the service life of the electronic components therein, so it is necessary to cool the distribution cabinet.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a ventilation device for high and low voltage distribution cabinets, including a cabinet body, a temperature sensor is fixed to the inner wall of the cabinet body, two suction fans are symmetrically fixed to the bottom end of the rear surface of the cabinet body, two exhaust fans are symmetrically fixed to the top end of the rear surface of the cabinet body, a shell is fixed to the bottom end of the rear surface of the cabinet body, a filter element is arranged in the shell, the top of the filter element passes through the top of the shell and is fixed with a top plate, and a limiting mechanism for limiting the top plate is arranged on the shell.

Preferably, a cabinet door is hingedly connected to the front surface of the cabinet through hinges, and mounting holes are symmetrically provided at the top and bottom ends of the rear surface of the cabinet, and the two suction fans and the two exhaust fans are respectively installed in the mounting holes.

Preferably, the limiting mechanism includes a stopper sliding on the top of the top plate, a movable plate is fixed to one side wall of the stopper, the bottom of the movable plate is slidably connected to the top of the shell, and two springs are symmetrically fixed to one side wall of the movable plate, and one end of the two springs is fixed to the rear surface of the cabinet.

Preferably, two T-blocks are symmetrically fixed to the bottom of the movable plate, and two T-slots matching the T-blocks are symmetrically opened on the top of the shell, and the T-blocks are slidably connected in adjacent T-slots respectively.

Preferably, a through opening is opened on the top of the shell, the opening area of the through opening is smaller than the area of the top plate, and the top end of the filter element is located in the through opening.

Preferably, positioning strips are fixed to both side walls of the filter element, and both side inner walls of the shell are provided with slide grooves adapted to the positioning strips, the top ends of the slide grooves are connected to the through openings, and the positioning strips are slidably connected in the corresponding slide grooves.

Preferably, a first dustproof net is fixed to one surface of the shell, a second dustproof net is fixed to the rear surface of the cabinet, and the two exhaust fans are located in the second dustproof net.

Compared with the prior art, the advantages and positive effects of the utility model are:

1. In the utility model, by arranging a temperature sensor, an intake fan and an exhaust fan, the temperature sensor can monitor the temperature in the high and low voltage distribution cabinets in real time. When it is detected that the temperature in the distribution cabinet is too high and exceeds the set value, the intake fan and the exhaust fan are automatically started. The intake fan sucks the normal temperature air outside the distribution cabinet into the cabinet body, and the inhaled normal temperature air blows the high temperature air in the cabinet body upward, so that the high temperature air can be discharged from the cabinet body by the exhaust fan above, so that the ventilation device can ventilate the distribution cabinet by itself, which has a good cooling and heat dissipation effect.

2. In the utility model, by providing a top plate, a through hole and a limit mechanism, a person operating the limit mechanism can very conveniently change the limiting effect on the top plate without the need for disassembly operations. The filter element can be removed in a simple and convenient manner, which makes it convenient for personnel to clean or replace the filter element, thereby simplifying the maintenance work of the ventilation device on the high and low voltage distribution cabinets by the staff.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a perspective view of the overall structure of a ventilation device for a high and low voltage distribution cabinet proposed by the present invention;

FIG2 is an exploded perspective view of a housing and a second dust screen structure in a high and low voltage distribution cabinet ventilation device proposed by the utility model;

FIG3 is an enlarged structural stereogram of point A in a high and low voltage distribution cabinet ventilation device proposed by the utility model;

FIG4 is a three-dimensional diagram of the internal structure of a cabinet in a ventilation device for a high and low voltage distribution cabinet proposed by the present invention.

Legend: 1. Cabinet body; 2. Temperature sensor; 3. Intake fan; 4. Exhaust fan; 5. Housing; 6. Filter element; 7. Top plate; 8. Limiting mechanism; 801. Block; 802. Moving plate; 803. Spring; 804. T-block; 805. T-slot; 9. Cabinet door; 10. Mounting hole; 11. Through hole; 12. Positioning strip; 13. Slide groove; 14. First dust screen; 15. Second dust screen.

DETAILED DESCRIPTION

In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

Embodiment 1, as shown in Figures 1 to 4, the utility model provides a ventilation device for a high and low voltage distribution cabinet, including a cabinet body 1, a temperature sensor 2 is fixed to the inner wall of the cabinet body 1, two suction fans 3 are symmetrically fixed to the bottom end of the rear surface of the cabinet body 1, two exhaust fans 4 are symmetrically fixed to the top end of the rear surface of the cabinet body 1, a shell body 5 is fixed to the bottom end of the rear surface of the cabinet body 1, a filter element 6 is arranged in the shell body 5, the top of the filter element 6 passes through the top of the shell body 5 and is fixed with a top plate 7, and a limiting mechanism 8 for limiting the top plate 7 is arranged on the shell body 5.

The effect achieved by the entire embodiment 1 is that the temperature sensor 2 can monitor the temperature in the cabinet 1 in real time and feed back the data to the controller. When it is detected that the temperature in the cabinet 1 is too high and exceeds the set value, the suction fan 3 and the exhaust fan 4 are automatically started. The suction fan 3 sucks the normal temperature air outside the cabinet 1 into the cabinet 1 after filtering through the filter element 6 in the shell 5. The sucked normal temperature air blows the high-temperature gas in the cabinet 1 upward, which facilitates the high-temperature gas to be discharged from the cabinet 1 by the exhaust fan 4 above, thereby forming ventilation in the cabinet 1 and playing a role in cooling and heat dissipation. When the filter element 6 needs to be cleaned or replaced, the personnel can operate the limiting mechanism 8 to very quickly take the filter element 6 out of the shell 5.

Embodiment 2, as shown in Figures 1 to 4, the front surface of the cabinet 1 is hinged with a cabinet door 9 through a hinge, and the top and bottom ends of the rear surface of the cabinet 1 are symmetrically provided with mounting holes 10, and two suction fans 3 and two exhaust fans 4 are respectively installed in the mounting holes 10; the limiting mechanism 8 includes a stopper 801 sliding on the top of the top plate 7, a movable plate 802 is fixed to one side wall of the stopper 801, and the bottom of the movable plate 802 is slidably connected to the top of the shell 5, and two springs 803 are symmetrically fixed to one side wall of the movable plate 802, and one end of the two springs 803 is fixed to the rear surface of the cabinet 1; two T-blocks 804 are symmetrically fixed to the bottom of the movable plate 802, and the top of the shell 5 is symmetrically provided with Two T-slots 805 matched with the T-block 804, and the T-blocks 804 are slidably connected in adjacent T-slots 805 respectively; a through opening 11 is opened on the top of the shell 5, and the opening area of the through opening 11 is smaller than the area of the top plate 7, and the top of the filter element 6 is located in the through opening 11; positioning strips 12 are fixed on both side walls of the filter element 6, and slide grooves 13 matched with the positioning strips 12 are opened on both side inner walls of the shell 5, and the top of the slide grooves 13 are connected with the through opening 11, and the positioning strips 12 are slidably connected in the corresponding slide grooves 13 respectively; a first dustproof net 14 is fixed on one surface of the shell 5, and a second dustproof net 15 is fixed on the rear surface of the cabinet 1, and the two exhaust fans 4 are located in the second dustproof net 15.

The effect achieved by the entire embodiment 2 is that the mounting hole 10 is convenient for installing the suction fan 3 and the exhaust fan 4. The movable plate 802 is operated to move it and squeeze the spring 803, so that the stopper 801 can be driven to move in the direction of the cabinet 1 until the bottom of the stopper 801 is out of contact with the top plate 7. With the cooperation of the T-block 804 and the T-slot 805, the movable plate 802 can slide smoothly on the top of the shell 5. At this time, the personnel can easily lift the filter element 6 out of the shell 5 through the lifting ring on the top plate 7, and the shell 5 can be cleaned through the through hole 11. The positioning strip 12 on the filter element 6 cooperates with the slide groove 13 to limit the installation position of the filter element 6 in the shell 5, which is convenient for positioning and installing the filter element 6. The first dustproof net 14 can play a primary filtering role on the filter element 6 at the suction end where the suction fan 3 acts, and the second dustproof net 15 can prevent some debris from entering the cabinet 1 from the exhaust fan 4.

Working principle: When in use, the temperature sensor 2 is electrically connected to the controller in the cabinet 1, and can monitor the temperature in the cabinet 1 in real time and feed back the data to the controller. When it is detected that the temperature in the cabinet 1 is too high and exceeds the set value, the suction fan 3 and the exhaust fan 4 are automatically started. The suction fan 3 sucks the normal temperature air outside the cabinet 1 into the cabinet 1, and the sucked normal temperature air blows the high temperature gas in the cabinet 1 upward, so that the high temperature gas can be discharged from the cabinet 1 by the exhaust fan 4 above, thereby achieving the purpose of ventilation and heat dissipation. The personnel operate the movable plate 802, and the spring 803 is operated. When used, the block 801 can slide accordingly to release or restrict the top plate 7 again, thereby facilitating the disassembly and assembly of the filter element 6 by personnel, and the operation is simple and convenient. The wiring diagram of the temperature sensor 2, the suction fan 3 and the exhaust fan 4 and the other connected controller in the utility model belongs to the common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use. Therefore, the control method and wiring layout of the temperature sensor 2, the suction fan 3 and the exhaust fan 4 and the other connected controller are no longer explained in detail. In summary, the problems raised in the above background are solved.

The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims (7)

1. A ventilation device for a high and low voltage distribution cabinet, characterized in that it comprises a cabinet (1), a temperature sensor (2) is fixed to the inner wall of the cabinet (1), two suction fans (3) are symmetrically fixed to the bottom end of the rear surface of the cabinet (1), two exhaust fans (4) are symmetrically fixed to the top end of the rear surface of the cabinet (1), a shell (5) is fixed to the bottom end of the rear surface of the cabinet (1), a filter element (6) is arranged in the shell (5), the top of the filter element (6) passes through the top of the shell (5) and is fixed to a top plate (7), and a limiting mechanism (8) for limiting the top plate (7) is arranged on the shell (5). 2. A high and low voltage distribution cabinet ventilation device according to claim 1, characterized in that: the front surface of the cabinet body (1) is hinged with a cabinet door (9) through a hinge, and the top and bottom ends of the rear surface of the cabinet body (1) are symmetrically provided with mounting holes (10), and the two suction fans (3) and the two exhaust fans (4) are respectively installed in the mounting holes (10). 3. A high and low voltage distribution cabinet ventilation device according to claim 1, characterized in that: the limiting mechanism (8) includes a stopper (801) sliding on the top of the top plate (7), a movable plate (802) is fixed to one side wall of the stopper (801), the bottom of the movable plate (802) is slidably connected to the top of the shell (5), and two springs (803) are symmetrically fixed to one side wall of the movable plate (802), and one end of the two springs (803) are fixed to the rear surface of the cabinet (1). 4. A high and low voltage distribution cabinet ventilation device according to claim 3, characterized in that: two T-blocks (804) are symmetrically fixed to the bottom of the movable plate (802), and two T-slots (805) adapted to the T-blocks (804) are symmetrically opened on the top of the shell (5), and the T-blocks (804) are respectively slidably connected in adjacent T-slots (805). 5. A high and low voltage distribution cabinet ventilation device according to claim 1, characterized in that: a through opening (11) is opened on the top of the shell (5), the opening area of the through opening (11) is smaller than the area of the top plate (7), and the top end of the filter element (6) is located in the through opening (11). 6. A high and low voltage distribution cabinet ventilation device according to claim 5, characterized in that: positioning strips (12) are fixed to both side walls of the filter element (6), and both side inner walls of the shell (5) are provided with slide grooves (13) adapted to the positioning strips (12), the top of the slide groove (13) is connected to the through port (11), and the positioning strips (12) are slidably connected in the corresponding slide grooves (13) respectively. 7. A high and low voltage distribution cabinet ventilation device according to claim 1, characterized in that: a first dustproof net (14) is fixed to one surface of the shell (5), a second dustproof net (15) is fixed to the rear surface of the cabinet (1), and the two exhaust fans (4) are located in the second dustproof net (15).