CN219535260U

CN219535260U - Bottom ventilation type power distribution cabinet

Info

Publication number: CN219535260U
Application number: CN202222918330.1U
Authority: CN
Inventors: 冯国庆
Original assignee: Hangzhou Hangkai Electric Power Co ltd
Current assignee: Hangzhou Hangkai Electric Power Co ltd
Priority date: 2022-11-02
Filing date: 2022-11-02
Publication date: 2023-08-15
Anticipated expiration: 2032-11-02

Abstract

The utility model relates to the technical field of power distribution cabinets, in particular to a bottom ventilation type power distribution cabinet. The novel power distribution cabinet comprises a power distribution cabinet body, a ventilation supporting component used for supporting and ventilating the bottom of the power distribution cabinet body is arranged at the bottom of the power distribution cabinet body, the ventilation supporting component at least comprises a base supported on the ground, a plurality of radiating fins are arranged inside the base, the tops of the radiating fins are fixed at the bottom of the power distribution cabinet body and used for absorbing heat emitted by the power distribution cabinet body, a ventilation structure is arranged at the outside of the inside communication of the base, and the ventilation structure is used for accelerating air flow of outside air and the inside of the base. According to the utility model, the base is used for supporting the power distribution cabinet body to be higher than the ground, so that the liquid on the ground is prevented from directly corroding the power distribution cabinet body, and the outside air is introduced into the base through the ventilation structure, so that the heat dissipation is quickened when the cooling fin absorbs the power distribution cabinet body, and the heat dissipation effect is improved.

Description

Bottom ventilation type power distribution cabinet

Technical Field

The utility model relates to the technical field of power distribution cabinets, in particular to a bottom ventilation type power distribution cabinet.

Background

The distribution cabinet (box) transfer power distribution cabinet (box) and the illumination distribution cabinet (box) and the metering cabinet (box) are the final-stage equipment of the distribution system. The power distribution cabinet is a generic name of a motor control center. The power distribution cabinet is used in the occasions with dispersed load and less loops; the motor control center is used for occasions with concentrated load and more loops. They distribute the power of a circuit of the upper-level distribution equipment to nearby loads. This class of equipment should provide protection, monitoring and control of the load;

when the switch board is directly put subaerial in use, because the switch board bottom is nearer to ground, not only easily lead to moisture erosion switch board to damage, and the switch board bottom is covered ventilative ventilation effect poor, inconvenient heat dissipation, in view of this, we provide a bottom ventilation type switch board.

Disclosure of Invention

The utility model aims to provide a bottom ventilation type power distribution cabinet so as to solve the problems in the background art.

In order to achieve the above object, the utility model provides a bottom ventilation type power distribution cabinet, comprising a power distribution cabinet body, wherein a ventilation supporting component for supporting and ventilating the bottom of the power distribution cabinet body is arranged at the bottom of the power distribution cabinet body, and the bottom ventilation type power distribution cabinet comprises:

the ventilation supporting component at least comprises a base supported on the ground, a plurality of radiating fins are arranged inside the base, the tops of the radiating fins are fixed at the bottom of the power distribution cabinet body and used for absorbing heat emitted by the power distribution cabinet body, a ventilation structure is arranged at the outside of the base, and the ventilation structure is used for accelerating air flow of outside air and the inside of the base.

When the power distribution cabinet is used for a long time, the cooling fin absorbs internal heat to dissipate heat, and meanwhile, outside air is introduced into the base through the ventilation structure, so that the cooling fin can accelerate heat dissipation when absorbing the power distribution cabinet body.

As a further improvement of the technical scheme, the ventilation structure comprises a shell fixed on the outer wall of the base, a ventilation fan is rotatably arranged in the shell, and the end part of the ventilation fan is connected with a motor output shaft.

As a further improvement of the technical scheme, the end part of the shell is provided with a dust screen for blocking dust.

As a further improvement of the technical scheme, two arc-shaped partition plates are arranged between the inner parts of the radiating fins, and the two arc-shaped partition plates form an arc-shaped bending channel communicated with the ventilation structure.

As a further improvement of the technical scheme, through holes are formed in the surfaces of the arc-shaped partition plates, and the through holes are communicated with gaps among the plurality of radiating fins.

Compared with the prior art, the utility model has the beneficial effects that:

in this bottom ventilation formula switch board, through ventilation supporting component, support switch board body with the base and be higher than ground, avoid the liquid direct erosion switch board body on ground, and inside introducing the base with external air through ventilation structure, accelerate the heat dissipation when realizing that the fin absorbs the switch board body, improve the radiating effect.

Drawings

FIG. 1 is a schematic overall structure of embodiment 1 of the present utility model;

FIG. 2 is a schematic view of a ventilation support assembly according to embodiment 1 of the present utility model;

FIG. 3 is a exploded view of the ventilation support assembly of embodiment 1 of the present utility model;

fig. 4 is a schematic diagram of a ventilation structure in embodiment 1 of the present utility model.

The meaning of each reference sign in the figure is:

1. a power distribution cabinet body;

2. a ventilation support assembly; 21. a base; 22. a heat sink; 23. a ventilation structure; 231. a housing; 232. a ventilation fan; 233. a motor; 24. an arc-shaped partition plate; 240. and a through hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-4, the embodiment provides a bottom ventilation type power distribution cabinet, which comprises a power distribution cabinet body 1, wherein the power distribution cabinet body 1 is the final-stage equipment of a power distribution system and is used in the occasions with dispersed loads and fewer loops; the motor control center is used for the occasion that the load is concentrated, the return circuit is more, when the switch board directly puts subaerial use, because the switch board bottom is nearer to ground, not only easily leads to moisture erosion switch board to damage, and the switch board bottom is covered ventilative ventilation effect poor, inconvenient heat dissipation, in view of this, we provide a bottom ventilation type switch board, specifically as follows: the switch board body 1 bottom is equipped with and is used for supporting and ventilates ventilation support assembly 2 to its bottom, wherein:

the ventilation supporting component 2 at least comprises a base 21 supported on the ground, a plurality of radiating fins 22 are arranged in the base 21, the tops of the radiating fins 22 are fixed at the bottom of the power distribution cabinet body 1 and used for absorbing heat emitted by the power distribution cabinet body 1, a ventilation structure 23 is arranged at the position, communicated with the outside, of the inside of the base 21, the ventilation structure 23 is used for accelerating air flow between outside air and the inside of the base 21, and considering that the bottom of the power distribution cabinet body 1 is covered and supported on the ground, the bottom radiating effect is poor, therefore, the base 21 is supported by the ventilation supporting component 2 to be higher than the ground, liquid on the ground is prevented from directly corroding the power distribution cabinet body 1, and the outside air is introduced into the base 21 through the ventilation structure 23, so that the radiating effect is accelerated when the radiating fins 22 absorb the power distribution cabinet body 1, and the radiating effect is improved;

the heat sink 22 is a device for radiating heat of an easily-generated electronic component in an electric appliance, and is mostly made of aluminum alloy, brass or bronze into a plate shape, a sheet shape, a multi-sheet shape and the like, and generally, the heat sink 22 is coated with a layer of heat-conducting silicone grease on the contact surface of the electronic component and the heat sink 22 in use, so that the heat emitted by the component is more effectively conducted to the heat sink 22 and then is radiated into the surrounding air through the heat sink 22.

When the power distribution cabinet is particularly used, the base 21 is supported on the ground, the power distribution cabinet body 1 is supported on the top of the base 21, when the power distribution cabinet body 1 is heated in long-time use, the heat inside the power distribution cabinet body is absorbed by the heat radiating fins 22 to radiate, and meanwhile, the outside air is introduced into the base 21 through the ventilation structure 23, so that the heat radiation is quickened when the heat radiating fins 22 absorb the power distribution cabinet body 1.

As can be seen from the above, if ventilation is to be achieved in the base 21, the ventilation structure 23 needs to be further disclosed, the ventilation structure 23 includes a housing 231 fixed on the outer wall of the base 21, a ventilation fan 232 is rotatably provided in the housing 231, an output shaft of the motor 233 is connected to an end of the ventilation fan 232, the ventilation fan 232 is fixed in the housing 231 through the outer wall of the motor 233, and the output shaft of the motor 233 drives the ventilation fan 232 to rotate at a high speed to accelerate air flow, so that external air enters the base 21 through the housing 231 to ventilate, thereby improving heat dissipation and ventilation effects.

Because external dust is easy to carry when entering the inside of the base 21, the end of the shell 231 is provided with a dust screen for blocking dust, and the dust screen can be made of breathable and dust-impermeable plastic materials, so that ventilation is ensured, and meanwhile, the dust is prevented from entering the base 21 to cause blockage.

Because the time of flowing into the inside of the base 21 and horizontally flowing out to stay in the base 21 is shorter, the heat dissipation efficiency is low, therefore, two arc-shaped partition plates 24 are arranged between the inside of the plurality of radiating fins 22, and the two arc-shaped partition plates 24 form an arc-shaped bending channel communicated with the ventilation structure 23, so that the air introduced into the outside by the ventilation structure 23 flows along the channel formed by the two arc-shaped partition plates 24, the air horizontal outflow time is short, the stay time of the air in the inside of the base 21 is prolonged, and the heat dissipation effect is improved.

Specifically, in order to make the air more uniformly contact the cooling fins 22 to dissipate heat, the surface of the arc-shaped partition plate 24 is provided with the through holes 240, and the through holes 240 are communicated with the gaps between the cooling fins 22, so that when the air circulates from the channels formed by the two arc-shaped partition plates 24, part of the air can enter the gaps between the cooling fins 22 from the through holes 240, the contact range between the air and the cooling fins 22 is improved, and the heat dissipation effect is further improved.

When the bottom ventilation type power distribution cabinet is specifically used, the base 21 is supported on the ground, the power distribution cabinet body 1 is supported at the top of the base 21, when the power distribution cabinet body 1 is heated in long-time use, the cooling fins 22 absorb internal heat to dissipate heat, meanwhile, the motor 233 output shaft drives the ventilation fan 232 to rotate at a high speed to accelerate air flow, so that external air enters the base 21 to ventilate through the inside of the shell 231, the ventilation structure 23 introduces the external air to flow along a channel formed by the two arc-shaped partition plates 24, the residence time of the air in the base 21 is prolonged, part of the air can enter gaps among the cooling fins 22 from the through holes 240, the contact range of the air and the cooling fins 22 is prolonged, and the cooling speed is accelerated when the cooling fins 22 absorb the power distribution cabinet body 1.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a bottom ventilation formula switch board, includes switch board body (1), its characterized in that: the switch board body (1) bottom is equipped with and is used for supporting and ventilates support assembly (2) to its bottom, wherein:

the ventilation supporting component (2) at least comprises a base (21) supported on the ground, a plurality of radiating fins (22) are arranged inside the base (21), the tops of the radiating fins (22) are fixed at the bottom of the power distribution cabinet body (1) and used for absorbing heat emitted by the power distribution cabinet body (1), a ventilation structure (23) is arranged at the outside of the base (21) in a communicating mode, and the ventilation structure (23) is used for accelerating air flow inside the base (21).

2. The bottom-vented power distribution cabinet of claim 1, wherein: the ventilation structure (23) comprises a shell (231) fixed on the outer wall of the base (21), a ventilation fan (232) is rotatably arranged in the shell (231), and the end part of the ventilation fan (232) is connected with an output shaft of a motor (233).

3. The bottom-vented power distribution cabinet of claim 2, wherein: a dust screen for blocking dust is arranged at the end part of the shell (231).

4. The bottom-vented power distribution cabinet of claim 1, wherein: two arc-shaped partition plates (24) are arranged between the inner parts of the radiating fins (22), and the two arc-shaped partition plates (24) form an arc-shaped bending channel communicated with the ventilation structure (23).

5. The bottom-vented power distribution cabinet of claim 4, wherein: through holes (240) are formed in the surfaces of the arc-shaped partition plates (24), and the through holes (240) are communicated with gaps among the radiating fins (22).