CN218958387U

CN218958387U - Low-voltage switch cabinet

Info

Publication number: CN218958387U
Application number: CN202320059082.1U
Authority: CN
Inventors: 赵昌; 王坚
Original assignee: SHANGHAI ZHEZHONG ELECTRIC CO LTD
Current assignee: SHANGHAI ZHEZHONG ELECTRIC CO LTD
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-05-02
Anticipated expiration: 2033-01-10

Abstract

The utility model relates to a low-voltage switch cabinet, including the cabinet body, establish the backplate that divide into heat dissipation space and usage space with the internal space of cabinet in the cabinet, divide into a plurality of use subregions's polylith baffles with usage space, the equipartition just is located the first heat pipe in the heat dissipation space on the backplate, first end is located the baffle, the second end extends to the second heat pipe in heat dissipation space and is located the cooling pipeline in heat dissipation space, the both ends of cooling pipeline all stretch out from the cabinet body, first heat pipe and second heat pipe all with cooling pipeline butt or stretch into in the cooling pipeline. The application discloses a low-voltage switch cabinet uses active heat to derive the mode and reduces the internal temperature of the cabinet body, and this kind of mode can guarantee the leakproofness of the cabinet body when carrying out the heat dissipation, avoids the dust to invade the cabinet body.

Description

Low-voltage switch cabinet

Technical Field

The application relates to the electrical technical field, in particular to a low-voltage switch cabinet.

Background

The inside of low tension switchgear divide into a plurality of independent spaces, all installs electrical component in every space, and this kind of structure can realize subregion independent control, but has certain disadvantage in the heat dissipation, take the heat dissipation mode that is commonly used at present as the example: the air flow heat dissipation is to send cold air into the cabinet body, but the independent space in the low-voltage switch cabinet is too much, the cold air can only flow into the independent space at the edge, and the temperature of the independent space at the center is difficult to reduce; the air conditioner heat dissipation mode relies on the heat exchange of the cabinet body, and the radiating speed is slow, and use cost is high, still needs to open the cabinet door in order to accelerate the heat dissipation under some circumstances, but can lead to accumulating the dust on the electrical component, can hinder the heat exchange of electrical component and influence electrical component's normal work when the dust is too much.

Disclosure of Invention

The utility model provides a low-voltage switch cabinet uses the heat of active mode of leading out to reduce the internal temperature of the cabinet body, and this kind of mode can guarantee the leakproofness of the cabinet body when carrying out the heat dissipation, avoids the dust to invade the cabinet body.

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

in a first aspect, the present application provides a low voltage switchgear comprising:

a cabinet body;

the backboard is arranged in the cabinet body and divides the space in the cabinet body into a heat dissipation space and a use space;

a plurality of partition boards dividing the use space into a plurality of use partitions;

the first heat pipes are uniformly distributed on the back plate and positioned in the heat dissipation space;

the first end of the second heat pipe is positioned on the partition plate, and the second end of the second heat pipe extends to the heat dissipation space; and

the cooling pipeline is positioned in the heat dissipation space, and both ends of the cooling pipeline extend out of the cabinet body;

wherein, first heat pipe and second heat pipe all with cooling pipeline butt or stretch into in the cooling pipeline.

In one possible implementation of the first aspect, the first end of the second heat pipe is located on the back side of the partition.

In a possible implementation manner of the first aspect, a plurality of second heat pipes are disposed on one partition, and the second heat pipes located on the same partition are disposed in parallel.

In a possible implementation manner of the first aspect, the cross-sectional shape of the first heat pipe is flat and is attached to the back plate.

In a possible implementation manner of the first aspect, the cross-sectional shape of the second heat pipe is flat and is attached to the back plate and the partition plate.

In a second aspect, the present application provides a low voltage switchgear comprising:

a cabinet body;

the first heat pipes are uniformly distributed on the back plate and positioned in the heat dissipation space, and the second ends of the first heat pipes extend out of the heat dissipation space;

the first end of the second heat pipe is positioned on the partition plate, and the second end extends to the heat dissipation space and then extends out of the heat dissipation space; and

the radiating fins are arranged on the cabinet body and are abutted with the second end of the first heat pipe and the second end of the second heat pipe; and

both ends of the cooling pipeline extend out of the cooling pipeline.

In one possible implementation manner of the second aspect, the first end of the second heat pipe is located on the back surface of the partition.

In a possible implementation manner of the second aspect, a plurality of second heat pipes are disposed on one partition, and the second heat pipes located on the same partition are disposed in parallel.

In a possible implementation manner of the second aspect, the cross-sectional shape of the first heat pipe is flat and is attached to the back plate.

In a possible implementation manner of the second aspect, the cross-sectional shape of the second heat pipe is flat and is attached to the back plate and the partition plate.

The application provides a low tension switchgear has used the inside heat transfer mode of direct type, can shift out the heat that the internal electrical component of cabinet produced from the internal rotation of cabinet, and this kind of cooling mode can make the cabinet body realize cooling under airtight condition, has still avoided the dust to invade the electrical component that causes on the dust gathering problem simultaneously.

Drawings

Fig. 1 is a front view of a cabinet provided herein.

Fig. 2 is a schematic diagram of a division of a heat dissipation space and a usage space provided in the present application.

Fig. 3 is a schematic diagram of partitioning using partitions provided herein.

Fig. 4 is a schematic diagram of a distribution of a first heat pipe and a second heat pipe in a heat dissipation space, where a dotted line indicates a boundary of a usage partition.

Fig. 5 is a schematic flow diagram of a heat transfer medium in a cooling duct according to the present application.

Fig. 6 is a schematic diagram of the relative positions of a heat dissipation fin and a first heat pipe and a second heat pipe provided in the present application.

In the figure, 1, a cabinet body, 2, a first heat pipe, 3, a second heat pipe, 4, a cooling pipeline, 5, radiating fins, 12, a back plate, 13, a partition board, 111, a radiating space, 112, a using space, 113 and a using partition.

Detailed Description

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

Referring to fig. 1 to 3, for a low voltage switchgear disclosed in the present application, a main body of the switchgear is composed of a cabinet body 1, a back plate 12 and a partition plate 13, the back plate 12 is located in the cabinet body 1, the space in the cabinet body 1 is divided into a heat dissipation space 111 and a use space 112, the heat dissipation space 111 is provided for the first heat pipe 2 and the second heat pipe 3, the use space 112 is provided for electrical components, the partition plate 13 is used for dividing the use space 112 into a plurality of use partitions 113, and each use partition 113 is provided for an independent electrical component group.

The electrical components of a single electrical component group may be mounted on the back plate 12, on the partition 13, or fixedly mounted using a bracket.

The first heat pipes 2 are uniformly distributed on the back plate 12 and located in the heat dissipation space 111, and function to reduce the temperature of the back plate 12, and after the temperature of the back plate 12 is reduced, the temperature in the space near the back plate 12, that is, in each usage zone 113, is reduced, and the temperature of the electrical component can be reduced due to the direct contact between the back plate 12 and the electrical component.

The first end of the second heat pipe 3 is located on the partition 13 and the second end extends to the heat radiation space 111, and the function of the second heat pipe 3 is to lower the temperature of the partition 13, and after the temperature of the partition 13 is lowered, the temperature in the space near the partition 13, that is, in each use partition 113, is also lowered, and since the partition 13 can be in direct contact with an electric component, the temperature of the electric component can be lowered.

Referring to fig. 4, heat transferred by the first heat pipe 2 and the second heat pipe 3 is transferred to the cooling pipe 4, the cooling pipe 4 is located in the heat dissipation space 111, and two ends of the cooling pipe 4 extend out from the cabinet 1 to form a loop with a pipe of the cooling device.

The heat transfer medium in the cooling pipeline 4 is two, the first is cold air, the second is low-temperature water, the heat transfer medium circularly flows in the cooling pipeline 4, and the first heat pipe 2 and the second heat pipe 3 are both abutted with the cooling pipeline 4 or extend into the cooling pipeline 4.

Referring to fig. 5, the heat transferred by the first heat pipe 2 and the second heat pipe 3 is absorbed by the heat transfer medium, that is, the heat generated by the electrical components in the cabinet 1 is continuously transferred to the heat transfer medium in the cooling pipeline 4. The heat transfer medium transfers this heat to the cooling unit as it flows through the cooling unit.

Overall, the low-voltage switch cabinet provided by the application uses a direct internal heat transfer mode, heat generated by an electric element in the cabinet body 1 can be transferred out from the cabinet body 1, and the cooling mode can enable the cabinet body 1 to realize cooling under the airtight condition, and meanwhile, the problem of dust aggregation on the electric element caused by dust invasion is avoided.

As a specific embodiment of the low-voltage switchgear provided in the application, the first end of the second heat pipe 3 is located on the back surface of the partition 13, so that the front surface of the partition 13 can be vacated for mounting the electric components. The second heat pipe 3 positioned on the back of the partition 13 can cool the partition 13 and also cool the use partition 113 below the partition 13 to a certain extent.

Further, a plurality of second heat pipes 3 are arranged on one partition plate 13, and the second heat pipes 3 positioned on the same partition plate 13 are arranged in parallel.

The first heat pipe 2 is a heat pipe with a flat section, and meanwhile, a larger plane on the first heat pipe 2 is attached to the back plate 12, so that the heat exchange area can be increased, and the cooling effect is improved. The second heat pipe 3 is also a heat pipe with a flat section, and meanwhile, a larger plane on the second heat pipe 3 is attached to the back plate 12, so that the heat exchange area can be increased, and the cooling effect is improved.

After the first heat pipe 2 and the second heat pipe 3 are flat heat pipes, the thickness of the heat dissipation space 111 can be further reduced, and more space can be reserved for the use space 112 under the condition of fixed volume.

Referring to fig. 6, the application further discloses another low-voltage switch cabinet, which is different from the low-voltage switch cabinet described in the above description in that the heat dissipation is performed by using an air cooling mode, and structurally different from the low-voltage switch cabinet is that:

1. the first heat pipes 2 are uniformly distributed on the back plate 12 and positioned in the heat dissipation space 111, and the second ends of the first heat pipes 2 extend out of the heat dissipation space 111;

2. the first end of the second heat pipe 3 is positioned on the partition plate 13, and the second end extends to the heat dissipation space 111 and then extends out of the heat dissipation space 111;

3. the cooling pipeline 4 is replaced by a cooling fin 5, and is arranged on the cabinet body 1 and is abutted with the second end of the first heat pipe 2 and the second end of the second heat pipe 3.

The heat radiation fins 5 function to radiate heat, which is transferred from the cabinet 1 by the first heat pipe 2 and the second heat pipe 3, into the air. It should be noted that, the second low-voltage switch cabinet is suitable for the situations that the number of electrical components of the cabinet body 1 is small and the amount of heat generated by the electrical components is small, because the heat dissipation effect of the heat dissipation fins 5 is lower than that of the cooling pipeline 4.

On the basis, a fan can be additionally arranged on the cabinet body 1 to improve the heat dissipation effect, and the fan is additionally arranged towards the heat dissipation fins 5 to accelerate the flow speed of air near the heat dissipation fins 5.

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

1. A low voltage switchgear comprising:

a cabinet body (1);

a back plate (12) arranged in the cabinet body (1) and dividing the space in the cabinet body (1) into a heat dissipation space (111) and a use space (112);

a plurality of partition boards (13) for dividing the usage space (112) into a plurality of usage areas (113);

the first heat pipes (2) are uniformly distributed on the back plate (12) and positioned in the heat dissipation spaces (111) (11);

a second heat pipe (3) with a first end positioned on the partition plate (13) and a second end extending to the heat dissipation space (111); and

the cooling pipeline (4) is positioned in the heat dissipation space (111), and two ends of the cooling pipeline (4) extend out of the cabinet body (1);

wherein, first heat pipe (2) and second heat pipe (3) all support with cooling pipeline (4) or stretch into cooling pipeline (4) in.

2. A low-voltage switchgear according to claim 1, characterized in that the first end of the second heat pipe (3) is located on the back side of the partition (13).

3. The low-voltage switch cabinet according to claim 2, characterized in that a plurality of second heat pipes (3) are arranged on one partition (13), and the second heat pipes (3) positioned on the same partition (13) are arranged in parallel.

4. A low-voltage switchgear cabinet according to any of claims 1-3, characterized in that the first heat pipe (2) has a flat cross-sectional shape and is attached to the back plate (12).

5. The low-voltage switchgear according to claim 4, characterized in that the second heat pipe (3) has a flat cross-section and is attached to the back plate (12) and to the partition (13).

6. A low voltage switchgear comprising:

a cabinet body (1);

the first heat pipes (2) are uniformly distributed on the back plate (12) and positioned in the heat dissipation spaces (111) (11), and the second ends of the first heat pipes (2) extend out of the heat dissipation spaces (111);

the first end of the second heat pipe (3) is positioned on the partition plate (13), and the second end extends to the heat dissipation space (111) and then extends out of the heat dissipation space (111); and

the radiating fins (5) are arranged on the cabinet body (1) and are abutted with the second ends of the first heat pipes (2) and the second ends of the second heat pipes (3); and

both ends of the cooling pipeline (4) extend out of the cooling pipeline (4).

7. A low-voltage switchgear according to claim 6, characterized in that the first end of the second heat pipe (3) is located on the back of the partition (13).

8. The low-voltage switch cabinet according to claim 7, characterized in that a plurality of second heat pipes (3) are arranged on one partition (13), and the second heat pipes (3) positioned on the same partition (13) are arranged in parallel.

9. Low-voltage switchgear according to any of claims 6 to 8, characterized in that the first heat pipe (2) has a flat cross-section and is fitted to the back plate (12).

10. Low-voltage switchgear according to claim 9, characterized in that the second heat pipe (3) has a flat cross-section and is attached to the back plate (12) and to the partition (13).