CN219477407U - Low-voltage cabinet with active safety isolation and ventilation functions - Google Patents

Abstract

The application relates to a low-voltage cabinet with active safety isolation and ventilation functions, which comprises a cabinet body; a backboard arranged in the cabinet body; the first end is positioned outside the cabinet body, and the second end extends into the cabinet body and extends on the backboard; the air-cooling air duct is arranged on the ventilation opening and is used for guiding the flow direction of air flow, and the space of the back plate installation side is divided into a plurality of isolation spaces by the air-cooling air duct. The utility model discloses a possess active safety isolation and ventilation function's low-voltage board has increased the project organization that can provide isolation and ventilation simultaneously in the cabinet body, can provide good ventilation condition when simplifying cabinet body design, makes the internal everywhere temperature of cabinet all can obtain effective control.

Description

Low-voltage cabinet with active safety isolation and ventilation functions

Technical Field

The application relates to the technical field of electrical equipment, in particular to a low-voltage cabinet with active safety isolation and ventilation functions.

Background

The low-voltage switchgear and the control equipment are commonly called as low-voltage switchgear, namely low-voltage power distribution cabinet, and refer to a switchgear with an alternating current voltage and a direct current voltage below 1000V. The low-voltage switch cabinet is composed of three areas, namely an equipment area, a cable chamber and a bus chamber.

The isolation of equipment area, cable chamber and bus-bar room at present uses independent bin design scheme or uses the distance to keep apart, and each region all need use the baffle to keep apart in the independent bin design scheme. The mode increases the manufacturing cost of the low-voltage switch cabinet, and has the problem of difficult heat dissipation, because the volume of each isolation space is limited, the air flow speed is low, and the heat dissipation difficulty is high.

In the air duct design, the structure of the independent chambers also affects the air supply, because the air flow needs to pass through a plurality of independent chambers, and the flow speed and the temperature are difficult to control. And an additional auxiliary structure is added, so that the structure of the low-voltage power distribution cabinet is complicated.

The prior art can not meet the demands of people at present, and based on the present situation, improvement on the prior art is urgently needed.

Disclosure of Invention

The utility model provides a possess active safety isolation and ventilation function's low-voltage board has increased the project organization that can provide isolation and ventilation simultaneously in the cabinet body, can provide good ventilation condition when simplifying cabinet body design, makes the internal everywhere temperature of cabinet can all obtain effective control.

The above object of the present application is achieved by the following technical solutions:

the application provides a possess active safety isolation and ventilation function's low-voltage cabinet, include:

a cabinet body;

the backboard is arranged in the cabinet body;

the first end of the radiating air duct is positioned outside the cabinet body, and the second end of the radiating air duct extends into the cabinet body and extends on the back plate;

the ventilation opening is arranged on the heat dissipation air duct; and

the flow guiding louver is arranged on the ventilation opening and used for guiding the flowing direction of the airflow;

the space of the back plate installation side is divided into a plurality of isolation spaces by the heat dissipation air duct.

In one possible implementation of the present application, the height of the heat dissipation air duct is not lower than the height of the electrical components mounted on the back plate in a direction perpendicular to the back plate.

In one possible implementation of the present application, the deflector louvers direct airflow in a direction toward and away from the back plate.

In one possible implementation manner of the present application, the back plate is provided with a diversion channel, a first end of the diversion channel is close to the heat dissipation air channel, and a second end of the diversion channel extends in a direction away from the heat dissipation air channel.

In one possible implementation of the present application, the diversion channels are spaced along the heat dissipation air channel on the back plate.

In one possible implementation manner of the present application, the number of the heat dissipation air channels is a plurality.

In one possible implementation manner of the present application, a connection port sequentially connected to the first end of the heat dissipation air duct is further included.

In one possible implementation manner of the present application, both sides of the heat dissipation air duct are provided with ventilation openings.

Overall, the application provides a possess active safety isolation and ventilation function's low-voltage cabinet uses the heat dissipation wind channel to bear two functions of physical isolation and ventilation simultaneously, can enough simplify the design and the preparation degree of difficulty of low-voltage cabinet like this, can also optimize the internal ventilation effect of cabinet, makes electrical component keep lower temperature when the operation. Through this kind of centralized ventilation design, can make the low-voltage cabinet operate for a long time under the confined state, and be difficult for accumulating the dust on the electrical component of the internal portion of cabinet.

Drawings

Fig. 1 is an outline view of a low-voltage cabinet provided in the present application.

Fig. 2 is a schematic diagram of an internal structure of a low-voltage cabinet provided in the present application.

Fig. 3 is a schematic side structural view of a heat dissipation air duct provided in the present application, with flow guiding louvers.

Fig. 4 is a schematic side structural view of a heat dissipation air duct provided in the present application, without a flow guiding louver.

Fig. 5 is a schematic view of a flow guiding louver provided in the present application obliquely disposed on a heat dissipation air duct.

Fig. 6 is a schematic cross-sectional shape of a back plate provided herein.

Fig. 7 is a schematic view of an internal structure of another low-voltage cabinet provided in the present application.

In the figure, 11, a cabinet body, 12, a back plate, 13, a heat dissipation air duct, 14, a ventilation opening, 15, a diversion louver, 121, a diversion channel, 21 and a connecting channel.

Detailed Description

The technical solutions in the present application are described in further detail below with reference to the accompanying drawings.

Please refer to fig. 1 and fig. 2, in order to disclose a low-voltage cabinet with active safety isolation and ventilation functions, the low-voltage cabinet is composed of a cabinet body 11, a back plate 12, a heat dissipation air duct 13 and the like, the back plate 12 is vertically installed in the cabinet body 11, and electric components in the low-voltage cabinet are installed on the back plate 12.

The first end of the heat dissipation air duct 13 is located outside the cabinet body 11, the second end extends into the cabinet body 11 and extends on the back plate 12, and in the extending process of the heat dissipation air duct 13, the space on the installation side of the back plate 12 is divided into a plurality of isolation spaces, and the isolation spaces can be used as an equipment area, a cable chamber and a bus bar chamber.

It should be noted that the size and position of the isolation space need to be determined according to the design scheme, that is, the size of each isolation space may be the same or different, and the overall design requirement needs to be met on the premise of meeting the use requirement.

Referring to fig. 3 and 4, a ventilation opening 14 is disposed on the heat dissipation air duct 13, a flow guiding louver 15 is installed on the ventilation opening 14, and the flow guiding louver 15 guides the flow direction of the air flow, where the flow direction refers to the flow direction of the air flow after flowing out of the heat dissipation air duct 13.

Referring to fig. 5, the air guiding louvers 15 guide the air flow in a direction toward and away from the back plate 12. The inclination angle of the air guiding louver 15 needs to be determined according to the height of the electrical component so that the wind flowing out of the cooling air duct 13 can be blown directly onto the surface of the electrical component.

The electrical components are installed in each isolation area on the back plate 12, the heat dissipation air duct 13 can provide physical isolation for adjacent isolation areas, and meanwhile, the ventilation openings 14 on the heat dissipation air duct 13 can also blow out normal-temperature air or cold air to cool the electrical components in the isolation areas.

It should be appreciated that the normal temperature air or cold air blown out from the cooling air duct 13 can be more closely to the electric component, and the electric component can be rapidly cooled because the distance between the cooling air duct 13 and the electric component is shorter. The normal temperature wind or cold wind supplied to the heat dissipation air duct 13 can be uniformly treated, the cabinet 11 can be in a long-term closed state, and less dust is accumulated on the surfaces of the electric elements.

The heat dissipation air duct 13 has two functions of physical isolation and ventilation, so that the design and manufacturing difficulty of the low-voltage cabinet can be simplified, the ventilation effect in the cabinet body 11 can be optimized, and the temperature of the electric element during operation is lower.

In the direction perpendicular to the back plate 12, the height of the heat dissipation air duct 13 is not lower than the height of the electric components mounted on the back plate 12, so that normal temperature air or cold air blown out from the heat dissipation air duct 13 can cover the entire surface of the electric components as much as possible.

Although the normal temperature wind or cold wind blown out from the heat dissipation air duct 13 can flow to the electric element under the guidance of the flow guiding louver 15, in view of practical effects, a better ventilation effect can be obtained by increasing the height of the heat dissipation air duct 13.

Referring to fig. 2 and 6, in order to further improve the ventilation effect, a flow guiding channel 121 is added on the back plate 12, a first end of the flow guiding channel 121 is close to the heat dissipation air duct 13, and a second end of the flow guiding channel 121 extends in a direction away from the heat dissipation air duct 13.

The normal temperature wind or cold wind blown out from the heat dissipation air duct 13 flows through the diversion channel 121, which is equivalent to cooling the bottom surface (contact surface with the back plate 12) of the electrical component. It will be appreciated that the flow channels 121 alleviate this phenomenon by bringing the bottom surface of the electrical component into contact with the back plate 12, which may result in the bottom surface of the electrical component being at a higher temperature than the other parts.

In some possible implementations, the flow channels 121 are spaced along the heat dissipation air path 13 on the back plate 12.

The flow guide channels 121 are formed together with the back plate 12, for example by stamping.

The number of the heat dissipation air channels 13 may be one or more, and the advantage of using a plurality of heat dissipation air channels 13 at the same time is that the arrangement is easier, because the back plate 12 can be divided according to the heat dissipation air channels 13. One heat dissipation air channel 13 is responsible for one area, and the difficulty of ventilation design in the design of the heat dissipation air channel 13 can be reduced, because a plurality of heat dissipation air channels 13 are used simultaneously, which is equivalent to shortening the length of a single heat dissipation air channel 13.

Further, ventilation openings 14 are formed in both sides of the heat dissipation air duct 13.

Referring to fig. 7, when a plurality of cooling air channels 13 are used, a connection channel 21 may be further used, and the connection channel 21 is sequentially connected to the first ends of the cooling air channels 13, so that concentrated normal-temperature air or cold air may be supplied to the plurality of cooling air channels 13.

The embodiments of the present utility model are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. The utility model provides a possess active safety isolation and ventilation function's low-voltage cabinet which characterized in that includes:

a cabinet body (11);

a back plate (12) arranged in the cabinet body (11);

the first end of the radiating air channel (13) is positioned outside the cabinet body (11), and the second end of the radiating air channel (13) extends into the cabinet body (11) and extends on the back plate (12);

a ventilation opening (14) arranged on the heat dissipation air duct (13); and

the flow guiding louver (15) is arranged on the ventilation opening (14) and used for guiding the flowing direction of the airflow;

the heat dissipation air duct (13) divides the space of the mounting side of the backboard (12) into a plurality of isolation spaces.

2. The low-voltage cabinet with active safety isolation and ventilation functions according to claim 1, characterized in that the height of the heat dissipation air duct (13) is not lower than the height of the electrical components mounted on the back plate (12) in the direction perpendicular to the back plate (12).

3. The low-voltage cabinet with active safety isolation and ventilation functions according to claim 1, wherein the flow guiding louver (15) guides the airflow to flow in a direction approaching and away from the back plate (12).

4. A low-voltage cabinet with active safety isolation and ventilation functions according to any one of claims 1 to 3, characterized in that a flow guide channel (121) is arranged on the back plate (12), a first end of the flow guide channel (121) is close to the heat dissipation air channel (13), and a second end of the flow guide channel (121) extends in a direction away from the heat dissipation air channel (13).

5. The low-voltage cabinet with the active safety isolation and ventilation functions according to claim 4, wherein the diversion channels (121) are arranged on the back plate (12) at intervals along the heat dissipation air duct (13).

6. The low-voltage cabinet with active safety isolation and ventilation functions according to claim 1, wherein the number of the radiating air channels (13) is plural.

7. The low-voltage cabinet with active safety isolation and ventilation functions according to claim 6, further comprising a connection channel (21) connected in sequence with the first end of the heat dissipation air duct (13).

8. The low-voltage cabinet with active safety isolation and ventilation functions according to claim 1, 6 or 7, characterized in that ventilation openings (14) are arranged on both sides of the heat dissipation air duct (13).