CN219459604U

CN219459604U - Electrical equipment cabinet heat radiation structure and photovoltaic power generation inverter

Info

Publication number: CN219459604U
Application number: CN202320018229.2U
Authority: CN
Inventors: 肖宇; 刘玉柱; 童嘉跞
Original assignee: Zhuzhou CRRC Times Electric Co Ltd
Current assignee: Zhuzhou CRRC Times Electric Co Ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-08-01
Anticipated expiration: 2033-01-04

Abstract

The utility model discloses a heat radiation structure of an electrical equipment cabinet, which comprises a cabinet body, a radiator arranged on the cabinet body, a heat exchange air duct and an external cabinet fan capable of cooling the heat exchange air duct, wherein two ends of the heat exchange air duct are communicated with the cabinet body, and an internal cabinet fan for driving hot air to circularly flow between the cabinet body and the heat exchange air duct is arranged in the cabinet body. The utility model further discloses a photovoltaic power generation inverter which comprises the electric equipment cabinet heat dissipation structure. The utility model has the advantages of simple structure, contribution to improving the heat dissipation efficiency of the cabinet body, avoiding excessively increasing the external dimension and weight of the equipment, and the like.

Description

Electrical equipment cabinet heat radiation structure and photovoltaic power generation inverter

Technical Field

The utility model relates to the technical field of electrical equipment, in particular to a heat dissipation structure of an electrical equipment cabinet and a photovoltaic power generation inverter.

Background

Photovoltaic power generation is an important component of renewable energy at present, and an inverter is a key device in the photovoltaic power generation industry. With higher and higher power density, the temperature in the inverter cabinet can not be controlled by natural heat dissipation through a conventional cabinet body structure, and the temperature in the cabinet can easily reach the set protection temperature to trigger derating, so that the power generation benefit is affected. Therefore, the heat dissipation efficiency of the cabinet body needs to be increased, and the influence of excessive amount reduction due to the overhigh temperature in the cabinet on the power generation benefit of the user is avoided.

At present, two main methods for solving the problem of overhigh temperature rise in a cabinet are as follows: a heat exchanger is added on the side surface of a cabinet door or a cabinet body, and the temperature outside the cabinet is balanced through a heat exchange core so as to realize heat dissipation inside the cabinet; the other is to enlarge the size of the radiator of the cabinet body, and the heat radiation area of the cabinet body and the radiator is enlarged so as to achieve the aim of heat radiation in the cabinet. However, adding heat exchangers to the sides of the cabinet door or cabinet results in increased physical dimensions of the equipment, as well as increased weight and cost. Increasing the size of the radiator can lead to a great increase in the overall weight of the equipment, and is inconvenient to carry on the construction site.

Disclosure of Invention

The utility model aims to solve the technical problem of overcoming the defects in the prior art, and provides the heat dissipation structure of the electrical equipment cabinet, which has a simple structure, is beneficial to improving the heat dissipation efficiency of the cabinet body and avoids excessively increasing the external dimension and the weight of the equipment.

The utility model further provides a photovoltaic power generation inverter comprising the electrical equipment cabinet heat dissipation structure.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides an electrical equipment cabinet heat radiation structure, includes the cabinet body and locates the radiator on the cabinet body, still includes heat transfer wind channel and can cool off the outer fan of cabinet of heat transfer wind channel, heat transfer wind channel both ends all with cabinet body intercommunication, the internal portion of cabinet is equipped with and is used for driving the hot-blast cabinet internal fan that circulates between the cabinet body and heat transfer wind channel.

As a further improvement of the above technical scheme: the heat exchange air duct is arranged on one side, far away from the cabinet body, of the radiator, an air inlet is formed in one end of the heat exchange air duct, an air outlet is formed in the other end of the heat exchange air duct, and the air inlet and the air outlet are communicated with the cabinet body.

As a further improvement of the above technical scheme: the radiator and the heat exchange air duct are both positioned on the air outlet side of the cabinet outer fan.

As a further improvement of the above technical scheme: the radiator and the heat exchange air duct are both positioned on the upper side of the cabinet outer fan.

As a further improvement of the above technical scheme: the heat exchange air duct is provided with a plurality of heat exchange air ducts.

As a further improvement of the above technical scheme: and a gap is formed between any two heat exchange air channels.

As a further improvement of the above technical scheme: the heat exchange air duct is a wave line air duct.

As a further improvement of the above technical scheme: the heat exchange air duct is a zigzag air duct.

As a further improvement of the above technical scheme: the heat exchange air duct is a trapezoid air duct.

A photovoltaic power generation inverter comprises the heat dissipation structure of the electrical equipment cabinet.

Compared with the prior art, the utility model has the advantages that: according to the heat dissipation structure of the electrical equipment cabinet, when the heat dissipation structure works, heat in the cabinet is exchanged with the external environment through the radiator, on the other hand, hot air in the cabinet flows into the heat exchange air duct through the internal fan, natural air is blown to the heat exchange air duct through the external fan, hot air in the heat exchange air duct and natural air are returned into the cabinet body again after being subjected to heat exchange and cooling, circulation is completed, the structure is simple and reliable, the heat in the cabinet can be timely discharged, the heat dissipation efficiency is greatly improved compared with that of the traditional cabinet body, and compared with that of directly adding the heat exchanger or enlarging the size of the radiator, the overall appearance size of equipment is not affected, and the heat dissipation structure has advantages in weight and cost management and control of the equipment.

The photovoltaic power generation inverter disclosed by the utility model comprises the heat dissipation structure of the electrical equipment cabinet, so that the photovoltaic power generation inverter also has the advantages.

Drawings

Fig. 1 is a schematic top view of the present utility model.

Fig. 2 is a schematic side view of the present utility model.

Fig. 3 is an enlarged view of the heat exchanging air duct in the present utility model.

The reference numerals in the drawings denote: 1. a cabinet body; 2. a heat sink; 3. a heat exchange air duct; 31. an air inlet; 32. an air outlet; 4. and a fan outside the cabinet.

Detailed Description

As used in this section and in the claims, the terms "a," "an," "the," and/or "the" are not specific to a singular, but may include a plurality, unless the context clearly dictates otherwise. The use of the terms "first," "second," and the like in this section does not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

The utility model is described in further detail below with reference to the drawings and specific examples of the specification.

Example 1

Fig. 1 to 3 show an embodiment of a heat dissipation structure of an electrical equipment cabinet according to the present utility model, where the heat dissipation structure of an electrical equipment cabinet according to the present embodiment includes a cabinet body 1, a radiator 2 disposed on the cabinet body 1, a heat exchange air duct 3, and an external fan 4 capable of cooling the heat exchange air duct 3, where both ends of the heat exchange air duct 3 are communicated with the cabinet body 1, and an internal fan (the internal fan and the external fan 4 are both commercially available and not shown) for driving hot air to circulate between the cabinet body 1 and the heat exchange air duct 3 is disposed inside the cabinet body 1.

According to the heat dissipation structure of the electrical equipment cabinet, in the cabinet body 1, heat is exchanged with the external environment through the radiator 2 in the operation, hot air in the cabinet body 1 flows into the heat exchange air duct 3 under the action of the fan in the cabinet, natural air is blown into the heat exchange air duct 3 by the fan 4 outside the cabinet, and the hot air in the heat exchange air duct 3 flows back into the cabinet body 1 again after being subjected to heat exchange and cooling with the natural air, so that the circulation is completed.

Further, in this embodiment, the heat exchange air duct 3 is disposed on one side of the radiator 2 away from the cabinet body 1, one end of the heat exchange air duct 3 is provided with an air inlet 31, the other end is provided with an air outlet 32, and both the air inlet 31 and the air outlet 32 are communicated with the cabinet body 1. The structure enables the heat exchange air duct 3 to be highly coupled with the radiator 2, reasonably utilizes the space outside the cabinet body 1, and is beneficial to reducing the overall appearance size of the equipment.

Still further, in this embodiment, the radiator 2 and the heat exchange air duct 3 are both located at the air outlet side of the external fan 4, that is, the external fan 4 can blow natural wind to the radiator 2 and the heat exchange air duct 3 at the same time, so that the heat wind in the radiator 2 and the heat exchange air duct 3 can be cooled at the same time, the number of the external fans 4 can be reduced, and the overall weight and cost of the device can be reduced. Of course, in other embodiments, the radiator 2 and the heat exchange air duct 3 may be configured with the external fan 4 separately, which is disadvantageous in that the overall weight and cost of the apparatus may be increased.

Further, in this embodiment, the radiator 2 and the heat exchange air duct 3 are both located on the upper side of the cabinet outer fan 4 (see fig. 2 specifically, the left side is the upper side, and the right side is the lower side). The temperature of the natural wind rises after heat exchange with the radiator 2 and the heat exchange air duct 3, and the heated hot air flows upwards in a homeotropic manner, so that the structure is simple and reasonable.

As a preferred embodiment, the heat exchange air duct 3 is provided in plurality. The heat exchange air channels 3 are arranged in a plurality, so that the air quantity in the circulation process is improved, and the heat dissipation efficiency is further improved.

Further, in this embodiment, a gap is provided between any two heat exchange air channels 3. Referring specifically to fig. 3, natural wind blown by the external fan 4 of the cabinet can pass through a gap between any two heat exchange air channels 3, so that front air inlet and back air outlet are realized, flow resistance is reduced, air flow disorder is avoided, and heat exchange efficiency between the natural wind and the plurality of heat exchange air channels 3 is ensured.

The heat exchange air duct 3 can be a wave line air duct, a zigzag air duct or a trapezoid air duct, so that the heat exchange contact area can be increased, and the heat exchange efficiency is improved.

Example two

The photovoltaic power generation inverter of the embodiment comprises the heat dissipation structure of the electrical equipment cabinet.

The photovoltaic power generation inverter of the embodiment comprises the heat dissipation structure of the electrical equipment cabinet, so that the photovoltaic power generation inverter also has the advantages.

While the utility model has been described with reference to preferred embodiments, it is not intended to be limiting. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the utility model. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. The utility model provides an electrical equipment cabinet heat radiation structure, includes cabinet body (1) and locates radiator (2) on cabinet body (1), its characterized in that: still include heat transfer wind channel (3) and can carry out refrigerated cabinet outer fan (4) to heat transfer wind channel (3), heat transfer wind channel (3) both ends all with cabinet body (1) intercommunication, cabinet body (1) inside is equipped with and is used for driving the hot-blast cabinet inner fan who circulates between cabinet body (1) and heat transfer wind channel (3).

2. The electrical equipment cabinet heat dissipation structure of claim 1, wherein: the heat exchange air duct (3) is arranged on one side, far away from the cabinet body (1), of the radiator (2), an air inlet (31) is formed in one end of the heat exchange air duct (3), an air outlet (32) is formed in the other end of the heat exchange air duct, and the air inlet (31) and the air outlet (32) are communicated with the cabinet body (1).

3. The electrical equipment cabinet heat dissipation structure of claim 1, wherein: the radiator (2) and the heat exchange air duct (3) are both positioned on the air outlet side of the cabinet outer fan (4).

4. The electrical equipment cabinet heat dissipation structure as set forth in claim 3, wherein: the radiator (2) and the heat exchange air duct (3) are both positioned on the upper side of the cabinet outer fan (4).

5. The electrical equipment cabinet heat dissipation structure according to any one of claims 1 to 4, wherein: the heat exchange air duct (3) is provided with a plurality of heat exchange air ducts.

6. The electrical equipment cabinet heat dissipation structure as set forth in claim 5, wherein: a gap is formed between any two heat exchange air channels (3).

7. The electrical equipment cabinet heat dissipation structure according to any one of claims 1 to 4, wherein: the heat exchange air duct (3) is a wave line air duct.

8. The electrical equipment cabinet heat dissipation structure according to any one of claims 1 to 4, wherein: the heat exchange air duct (3) is a zigzag air duct.

9. The electrical equipment cabinet heat dissipation structure according to any one of claims 1 to 4, wherein: the heat exchange air duct (3) is a trapezoid air duct.

10. A photovoltaic power generation inverter, characterized in that: comprising an electrical equipment cabinet heat dissipation structure as defined in any one of claims 1 to 9.