CN219535260U - Bottom ventilation type power distribution cabinet - Google Patents

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

A bottom ventilated power distribution cabinet

technical field

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

Background technique

The power distribution cabinet (box) is divided into power distribution cabinet (box), lighting distribution cabinet (box), metering cabinet (box), and is the final equipment of the power distribution system. The power distribution cabinet is a general term for the motor control center. The power distribution cabinet is used in the occasions where the load is relatively scattered and there are few circuits; the motor control center is used in the occasions where the load is concentrated and there are many circuits. They distribute the electric energy of a certain circuit of the upper-level power distribution equipment to the nearest load. This level of equipment shall provide protection, monitoring and control of the load;

When the power distribution cabinet is used directly on the ground, since the bottom of the power distribution cabinet is close to the ground, it is easy to cause moisture erosion and damage to the power distribution cabinet, and the bottom of the power distribution cabinet is covered with poor ventilation and ventilation, which is inconvenient for heat dissipation. Therefore, we propose a bottom-ventilated power distribution cabinet.

Utility model content

The purpose of this utility model is to provide a bottom-ventilated power distribution cabinet to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides a bottom ventilated power distribution cabinet, including a power distribution cabinet body, the bottom of the power distribution cabinet body is provided with a ventilation support assembly for supporting and ventilating the bottom, wherein:

The ventilation support assembly at least includes a base supported on the ground, inside the base is provided with a plurality of heat sinks, the top of the heat sink is fixed on the bottom of the power distribution cabinet body to absorb the heat emitted by the power distribution cabinet body, A ventilation structure is provided at the place connected to the outside, and the ventilation structure is used to accelerate the flow of the outside air and the air inside the base.

When the utility model is actually used, the base is supported on the ground, so that the power distribution cabinet body is supported on the top of the base. When the power distribution cabinet body is used for a long time to generate heat, the heat sink absorbs the internal heat to dissipate heat. At the same time, through The ventilation structure introduces the outside air into the inside of the base to accelerate heat dissipation when the heat sink absorbs the power distribution cabinet body.

As a further improvement of the technical solution, the ventilation structure includes a housing fixed on the outer wall of the base, a ventilation fan is rotated inside the housing, and an output shaft of a motor is connected to the end of the ventilation fan.

As a further improvement of the technical solution, the end of the housing is provided with a dust-proof net for blocking dust.

As a further improvement of the technical solution, two arc-shaped partitions are arranged between the insides of the plurality of heat sinks, and the two arc-shaped partitions form an arc-shaped curved channel communicating with the ventilation structure.

As a further improvement of the technical solution, through holes are opened on the surface of the arc-shaped partition, and the through holes communicate with the gaps between the plurality of cooling fins.

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

In the bottom ventilated power distribution cabinet, the base supports the power distribution cabinet body higher than the ground through the ventilation support component, so as to prevent the liquid on the ground from directly corroding the power distribution cabinet body, and the outside air is introduced into the base through the ventilation structure to realize When the heat sink absorbs the power distribution cabinet body, the heat dissipation is accelerated and the heat dissipation effect is improved.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the utility model embodiment 1;

Fig. 2 is a schematic structural diagram of the ventilation support assembly of Embodiment 1 of the present utility model;

Fig. 3 is a disassembled view of the structure of the ventilation support assembly in Embodiment 1 of the present utility model;

Fig. 4 is a schematic diagram of the ventilation structure of Embodiment 1 of the present invention.

The meanings of each symbol in the figure are:

1. The main body of the power distribution cabinet;

2. Ventilation support assembly; 21. Base; 22. Heat sink; 23. Ventilation structure; 231. Shell; 232. Ventilation fan; 233. Motor; 24. Arc partition; 240. Through hole.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Example 1

Please refer to Figures 1-4, this embodiment provides a bottom-ventilated power distribution cabinet, including a power distribution cabinet body 1, through which the power distribution cabinet body 1 is the final stage equipment of the power distribution system, and is used when the load is relatively dispersed , occasions with fewer loops; the motor control center is used in occasions with concentrated loads and many loops. When the power distribution cabinet is placed directly on the ground, since the bottom of the power distribution cabinet is close to the ground, it is easy to cause moisture to corrode the power distribution cabinet. The cabinet is damaged, and the bottom of the power distribution cabinet is covered with poor ventilation and ventilation, which is inconvenient for heat dissipation. In view of this, we propose a bottom-ventilated power distribution cabinet, as follows: The bottom of the power distribution cabinet body 1 is equipped with a support and Ventilation support assembly 2 for bottom ventilation, wherein:

The ventilation support assembly 2 at least includes a base 21 supported on the ground. A plurality of cooling fins 22 are arranged inside the base 21. The top of the cooling fins 22 is fixed on the bottom of the power distribution cabinet body 1 to absorb the heat emitted by the power distribution cabinet body 1. The base 21 is connected to the outside with a ventilation structure 23. The ventilation structure 23 is used to accelerate the flow of outside air and the air inside the base 21. Considering that the bottom of the power distribution cabinet body 1 is covered and supported on the ground, resulting in poor heat dissipation at the bottom, therefore, through The ventilation support component 2 supports the base 21 to support the power distribution cabinet body 1 above the ground to prevent the liquid on the ground from directly corroding the power distribution cabinet body 1, and introduces the outside air into the base 21 through the ventilation structure 23 to realize the absorption of the heat sink 22 The main body of the power distribution cabinet is at 1 o'clock to speed up the heat dissipation and improve the heat dissipation effect;

The heat sink 22 is a device for dissipating heat from electronic components that are prone to heat in electrical appliances. It is mostly made of aluminum alloy, brass or bronze in the form of plates, sheets, and multi-sheets. A layer of heat-conducting silicone grease is coated on the contact surface between the components and the heat sink 22, so that the heat emitted by the components is more effectively conducted to the heat sink 22, and then dissipated into the surrounding air through the heat sink 22.

When the utility model is actually used, the base 21 is supported on the ground so that the power distribution cabinet body 1 is supported on the top of the base 21. When the power distribution cabinet body 1 is used for a long time to generate heat, the internal heat is absorbed by the heat sink 22 To dissipate heat, at the same time, the outside air is introduced into the base 21 through the ventilation structure 23, so as to accelerate the heat dissipation when the heat sink 22 absorbs the power distribution cabinet body 1.

According to the above, if the ventilation inside the base 21 is to be realized, 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. The inside of the housing 231 is rotated to be provided with a ventilation fan 232. The ventilation fan 232 ends The output shaft of the motor 233 is connected to the outside, and is fixed inside the housing 231 through the outer wall of the motor 233. The output shaft of the motor 233 drives the ventilation fan 232 to rotate at a high speed to accelerate the air flow, so that the outside air enters the inside of the base 21 through the housing 231 for ventilation. Improve heat dissipation and ventilation effect.

Because the dust from the outside is easy to carry the dust from the outside when it enters the inside of the base 21, the end of the housing 231 is provided with a dust-proof net for blocking the dust, and the dust-proof net can be made of air-permeable and dust-proof plastic material to ensure ventilation At the same time, prevent dust from entering the base 21 and causing blockage.

Due to the short stay time in the base 21 through the horizontal flow out of the inside of the base 21, the heat dissipation efficiency is slow. Therefore, two arc-shaped partitions 24 are arranged between the insides of the plurality of cooling fins 22, and the two arc-shaped partitions 24 forms an arc-shaped curved channel connected to the ventilation structure 23, so that the air introduced by the ventilation structure 23 to the outside flows along the channel formed by the two arc-shaped partitions 24, so as to avoid the short time of air horizontal outflow and increase the residence time of the air inside the base 21 , improve the cooling effect.

Specifically, in order to make the air more evenly contact the cooling fins 22 for heat dissipation, the surface of the arc-shaped partition 24 is provided with a through hole 240, and the through hole 240 communicates with the gaps between the plurality of cooling fins 22, so that the air flows from the two arcs. When the channels formed by the shaped partitions 24 circulate, part of the air can enter the gaps between the plurality of cooling fins 22 through the through holes 240, thereby increasing the contact range between the air and the cooling fins 22, and further improving the heat dissipation effect.

When the bottom ventilated power distribution cabinet of the utility model is actually used, the base 21 is supported on the ground so that the power distribution cabinet body 1 is supported on the top of the base 21. When the power distribution cabinet body 1 is used for a long time to generate heat, the cooling fin 22 absorbs internal heat to dissipate heat. At the same time, the output shaft of the motor 233 drives the ventilation fan 232 to rotate at a high speed to speed up the air flow, so that the outside air passes through the inside of the housing 231 and enters the inside of the base 21 for ventilation, so that the ventilation structure 23 introduces outside air along the Flowing along the channels formed by the two arc-shaped partitions 24 increases the residence time of the air inside the base 21, and part of the air can enter the gaps between the plurality of heat sinks 22 through the through holes 240, increasing the contact range between the air and the heat sinks 22 , to realize faster heat dissipation when the heat sink 22 absorbs the power distribution cabinet body 1 .

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions are only preferred examples of the utility model, and are not used to limit the utility model. Without departing from the utility model Under the premise of the spirit and scope, the utility model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (5)

1. A bottom-ventilated power distribution cabinet, including a power distribution cabinet body (1), characterized in that: the bottom of the power distribution cabinet body (1) is provided with a ventilation support assembly (2) for supporting and ventilating the bottom ,in: The ventilation support assembly (2) at least includes a base (21) supported on the ground, the base (21) is provided with a plurality of cooling fins (22) inside, and the top of the cooling fins (22) is fixed on the power distribution cabinet body ( 1) The bottom is used to absorb the heat emitted by the power distribution cabinet body (1), and the base (21) is provided with a ventilation structure (23) where the interior is connected to the outside world, and the ventilation structure (23) is used to accelerate the connection between the outside air and the base (21) Internal air flow. 2. The bottom ventilated power distribution cabinet according to claim 1, characterized in that: the ventilation structure (23) includes a housing (231) fixed on the outer wall of the base (21), and the inside of the housing (231) A ventilation fan (232) is provided for rotation, and an output shaft of a motor (233) is connected to the end of the ventilation fan (232). 3. The bottom-ventilated power distribution cabinet according to claim 2, characterized in that: the end of the housing (231) is provided with a dust-proof net for blocking dust. 4. The bottom-ventilated power distribution cabinet according to claim 1, characterized in that: two arc-shaped partitions (24) are arranged between the plurality of heat sinks (22), and the two arc-shaped partitions The partition plate (24) forms an arc-shaped curved channel communicating with the ventilation structure (23). 5. The bottom ventilated power distribution cabinet according to claim 4, characterized in that: the surface of the curved partition (24) is provided with a through hole (240), and the through hole (240) is connected with a plurality of cooling fins The gap between (22) is connected.