CN205355605U - Ventilation cooling structure of container of integrated electrical equipment cabinet - Google Patents

Abstract

The utility model discloses a ventilation cooling structure of container of integrated electrical equipment cabinet, including the container, an electrical equipment cabinet and suitable indoor the 2nd electrical equipment cabinet of placing that placed suitable open air, the container is including the installation frame and installation box that link to each other, the installation frame includes bottom and the roof that links to each other through the stand, an electrical equipment cabinet is placed on the bottom of installation frame, and place in under the roof, be equipped with first air inlet subassembly and first air -out subassembly on the tank wall of installation box, the 2nd electrical equipment is equipped with import of heat dissipation wind and scattered hot air exitus cashier's office in a shop, the 2nd electrical equipment cabinet is placed in the install bin internally, the import of heat dissipation wind is neighbouring each other with first air inlet subassembly, the hot air exitus that looses is neighbouring each other with first air -out subassembly. The technical scheme of the utility model through the mode that directly dispel the heat in the open air and the heat dissipation of indoor electrical equipment cabinet self fan combines together to adjacent with the advancing of the advancing of indoor electrical equipment cabinet, air outlet and container, air outlet, shortened business turn over wind the stroke, accelerated indoor outer circulation of air speed greatly, have short, the characteristics such as efficient that circulate of circulation path, guaranteed the holistic ventilation cooling performance of container well.

Description

Ventilation and heat dissipation structure of container with integrated electrical equipment cabinet

technical field

The utility model belongs to the field of machinery and relates to a heat dissipation structure, in particular to a ventilation and heat dissipation structure of a container integrating electrical equipment cabinets.

Background technique

In the power generation area of photovoltaic power plants, the photovoltaic inverter is used as the inverter link, and the booster box transformer is used as the step-up link. Both are key electrical equipment, and their stability directly determines the performance of photovoltaic power generation.

With the rapid development of the photovoltaic industry, represented by container-type inverters, it is possible to complete the assembly of equipment in the factory, reduce the workload of on-site installation and wiring, shorten the construction period, reduce transportation and construction costs, and effectively reduce the difficulty of on-site construction. It has been widely used in photovoltaic power plants due to its advantages. The integrated container-type inverter and booster device integrates the inverter device and the booster box into the container and completes the assembly in the factory, which further reduces the difficulty of on-site installation and construction, shortens the construction period, and reduces the cost and failure rate. .

Since the inverter inside the container will generate a lot of heat when it is working, the increase in the temperature inside the container will affect the work of the core component IGBT in the inverter, causing the inverter to fail; at the same time, the booster box in the device The transformer (transformer) will also generate heat after long-term operation. Therefore, the ventilation and cooling system effect of the integrated container-type inverter booster device is very important, which directly affects its application performance.

However, in the existing containers, heat dissipation is usually achieved by opening shutters, setting up a dedicated air duct connected to the inverter air outlet, and building a heat dissipation fan. Disadvantages such as large amount of loss. In addition, a large number of axial flow fans are installed in the container to ensure the timely discharge of heat in the air-isolated layer. However, the failure rate of the axial flow fans during operation is too high, which also restricts the heat dissipation of the entire system.

Utility model content

In view of this, the utility model provides a ventilation and heat dissipation structure of a container integrating electrical equipment cabinets.

In order to achieve the above object, the specific technical scheme is as follows:

The utility model provides a ventilation and heat dissipation structure of a container with an integrated electrical equipment cabinet, comprising a container, a first electrical equipment cabinet suitable for outdoor placement and a second electrical equipment cabinet suitable for indoor placement, the container includes a connected installation frame and Install the box, the installation frame includes a bottom and a top plate connected by columns, the first electrical equipment cabinet is placed on the bottom of the installation frame, and placed under the top plate, the box wall of the installation box The first air inlet assembly and the first air outlet assembly are provided on the top, and the heat dissipation air inlet and heat dissipation air outlet are provided on the second electrical equipment cabinet. The second electrical equipment cabinet is placed in the installation box, and the heat dissipation The air inlet is adjacent to the first air inlet component, and the cooling air outlet is adjacent to the first air outlet component.

Preferably, it also includes a soft connection air duct, and the cooling air outlet communicates with the first air outlet component through the soft connection air duct.

Preferably, a second air inlet assembly and a second air outlet assembly are further provided on the wall of the installation box.

Preferably, a fan is also included, and the fan is arranged at the second air inlet assembly and/or the second air outlet assembly.

Preferably, a third electrical equipment cabinet is also included, and the third electrical equipment cabinet is placed in the installation box.

Preferably, both the first air inlet assembly and the second air inlet assembly are located at the lower part of the installation box.

Preferably, both the first air outlet assembly and the second air outlet assembly are located on the upper part of the installation box.

Preferably, both the first air inlet assembly and the second air inlet assembly include return louvers and a filter screen, and the filter screen is detachably connected to the installation box.

Preferably, rainproof covers are provided at the air outlets of the first air outlet assembly and the second air outlet assembly.

Preferably, the top plate of the installation frame includes a steel plate, and rock wool is sandwiched in the steel plate.

Compared with the prior art, the technical scheme of the utility model has a reasonable design, and combines the outdoor direct heat dissipation with the fan heat dissipation of the indoor electrical equipment cabinet itself, and connects the air inlet and outlet of the indoor electrical equipment cabinet with the air inlet and outlet of the container. Adjacent to each other, it shortens the journey of air in and out, greatly speeds up the indoor and outdoor air circulation rate, has the characteristics of short circulation path and high circulation efficiency, and well ensures the overall ventilation and heat dissipation performance of the container.

Description of drawings

The accompanying drawings constituting a part of the utility model are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 is the structural representation of the embodiment of the utility model;

Fig. 2 is a schematic structural view of the air inlet assembly of an embodiment of the present invention;

Fig. 3 is a structural schematic diagram of the fan and the installation frame of the embodiment of the present invention.

detailed description

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.

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

Embodiments of the present utility model will be explained in detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 3, a ventilation and heat dissipation structure of a container of an integrated electrical equipment cabinet according to an embodiment of the present invention includes a container 2, a first electrical equipment cabinet 3 suitable for outdoor placement, and a second electrical equipment cabinet suitable for indoor placement. Electrical equipment cabinet1. Among them, the first electrical equipment cabinet 3 is preferably a step-up box transformer suitable for being placed outdoors; the second electrical equipment cabinet 1 is preferably an inverter to be placed indoors.

The container 2 includes a connected installation frame and an installation box, and the installation frame includes a bottom and a top board connected by columns. The first electrical equipment cabinet 3 is placed on the bottom of the installation frame and placed under the roof.

The wall of the installation box is provided with a first air inlet assembly and a first air outlet assembly, and the second electrical equipment cabinet 1 is provided with a cooling air inlet and a cooling air outlet, and the second electrical equipment cabinet 1 is placed in the installation box. The cooling air inlet is adjacent to the first air inlet assembly, and the cooling air outlet is adjacent to the first air outlet assembly.

The design of the technical scheme of the utility model is reasonable. Through the combination of the outdoor direct heat dissipation of the first electrical equipment cabinet and the heat dissipation of the fan of the second electrical equipment cabinet, the air inlet and outlet of the second electrical equipment cabinet are connected with the inlet and outlet of the container. The air outlets are adjacent to each other, which shortens the journey of air in and out, greatly speeds up the indoor and outdoor air circulation rate, has the characteristics of short circulation path and high circulation efficiency, and ensures the overall ventilation and heat dissipation performance of the container.

In the embodiment of the present utility model, it also includes a third electrical equipment cabinet, preferably a low-voltage cabinet, etc., and the third electrical equipment cabinet is placed in the installation box.

Preferably, a second air inlet assembly and a second air outlet assembly are further provided on the wall of the installation box. And preferably, a fan 24 for heat dissipation is also provided at the second air inlet assembly and/or the second air outlet assembly.

As shown in Figures 1 to 3, the embodiment of the present utility model is mainly applied to an integrated container-type inverter booster device, the second electrical equipment cabinet 1 is installed in the container 2, and the first electrical equipment cabinet 3, namely The step-up box transformer is installed on the bottom frame of container 2. The second electrical equipment cabinet 1 includes an inverter (including a DC cabinet), and preferably a third electrical equipment cabinet is also placed in the interior of the container 2, preferably a low-voltage power supply cabinet, etc., and the cabinet side plate of the second electrical equipment cabinet 1 There are corresponding ventilation holes on the rear door panel. The step-up box substation directly placed outdoors includes a transformer body 31, a heat sink 32, a high-voltage chamber 33, and the like.

The side of the container 2 has an air inlet assembly 21 and an air outlet assembly that communicate with the outside atmosphere. Both the air inlet assembly 21 and the air outlet assembly include a part directly connected to the inverter and a part directly connected to the interior of the container 2 .

In order to meet the requirements of ventilation, anti-grain sandstorm and rainproof, the air inlet assembly 21 adopts the form of back-type louvers 22, and ensures sufficient air inlet area to ensure the air inlet air volume. In order to further prevent small particles of wind and sand from entering the inside, a detachable filter screen 23 is installed on it for secondary filtration.

The soft connection air duct 25 of some containers in the air outlet component that is directly connected to the inverter is connected to the high-volume cooling fan 26 installed in the inverter to directly take away the heat of the inverter. The soft connection air duct 25 is Prevent the box from colliding with electrical equipment or not closing properly due to processing errors during the closing process. The part directly connected to the interior of the container 2 in the air outlet assembly is connected to the air outlet fan 24 installed on the side of the container. The fan 24 is preferably a small air volume fan, which mainly solves the heat dissipation problem of the third electrical equipment cabinet except indoors.

In addition, in order to prevent rainwater from entering the interior of the container from the cooling fan, the container 2 is equipped with a rainproof cover 27 at positions corresponding to the fans 24 and 26 .

The booster box transformer is directly placed on the installation frame of the container 2, and its top includes a steel plate 28 with rock wool 29 sandwiched therebetween. Rock wool 29 has good fireproof, heat preservation and waterproof properties, and can effectively prevent the temperature rise caused by direct sunlight on the booster box.

As shown in the direction of the arrow in Figure 1, Figure 2, and Figure 3, the heat dissipation structure in the installation box of the container 2 combines the use of the large air volume heat dissipation fan 26 and the fan 24 of the inverter itself to discharge the air in the room and form a negative pressure , the external air is quickly entered by the air intake assembly 21 under the effect of atmospheric pressure. Due to the very short air inlet and outlet strokes, the indoor and outdoor air circulation rate is greatly accelerated, so that a high-speed, directional, and stable heat dissipation airflow zone is formed in the interior of the container 2, and the heat in the inverter and the interior of the container 2 is quickly discharged.

The outdoor step-up box transformer is directly placed on the frame of the container 2 with no shelter around, and its heat sink 32 directly takes away its heat. This heat dissipation method belongs to the mature technology of transformers.

The combined application of the two methods effectively solves the problem of ventilation and heat dissipation of the integrated container-type inverter booster device, well ensures the overall ventilation and heat dissipation performance of the device, and ensures the long-term stable operation of the device in various environments.

The specific embodiments of the present invention have been described in detail above, but they are only examples, and the present invention is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions to the utility model are also within the scope of the utility model. Therefore, all equivalent transformations and modifications made without departing from the spirit and scope of the present invention shall fall within the scope of the present invention.

Claims (10)

1. A ventilation and heat dissipation structure of a container with an integrated electrical equipment cabinet, characterized in that it includes a container, a first electrical equipment cabinet suitable for outdoor placement and a second electrical equipment cabinet suitable for indoor placement, and the container includes a connected installation frame and an installation box, the installation frame includes a bottom and a top plate connected by columns, the first electrical equipment cabinet is placed on the bottom of the installation frame and placed under the top plate, the box of the installation box The wall is provided with a first air inlet assembly and a first air outlet assembly, and the second electrical equipment cabinet is provided with a cooling air inlet and a cooling air outlet, and the second electrical equipment cabinet is placed in the installation box. The cooling air inlet is adjacent to the first air inlet component, and the cooling air outlet is adjacent to the first air outlet component. 2. The ventilation and heat dissipation structure of the container of the integrated electrical equipment cabinet according to claim 1, further comprising a soft connection air duct, and the heat dissipation air outlet communicates with the first air outlet component through the soft connection air duct . 3. The ventilation and heat dissipation structure of the container of the integrated electrical equipment cabinet according to claim 2, wherein a second air inlet assembly and a second air outlet assembly are further provided on the wall of the installation box. 4 . The ventilation and heat dissipation structure of the container of the integrated electrical equipment cabinet according to claim 3 , further comprising a fan, and the fan is arranged at the second air inlet assembly and/or the second air outlet assembly. 5 . The ventilation and heat dissipation structure of a container integrated with an electrical equipment cabinet according to claim 4 , further comprising a third electrical equipment cabinet, and the third electrical equipment cabinet is placed in the installation box. 5 . 6 . The ventilation and heat dissipation structure of the container of the integrated electrical equipment cabinet according to claim 5 , wherein the first air inlet assembly and the second air inlet assembly are both located at the lower part of the installation box. 7 . 7 . The ventilation and heat dissipation structure of the container of the integrated electrical equipment cabinet according to claim 6 , wherein the first air outlet assembly and the second air outlet assembly are both located on the upper part of the installation box. 8. The ventilation and heat dissipation structure of the container of the integrated electrical equipment cabinet according to claim 7, characterized in that, the first air inlet assembly and the second air inlet assembly both include return-type louvers and filter screens, and the filter screens It is detachably connected with the installation box body. 9. The ventilation and heat dissipation structure of the container of the integrated electrical equipment cabinet according to claim 8, characterized in that, the air outlets of the first air outlet assembly and the second air outlet assembly are provided with rainproof covers. 10 . The ventilation and heat dissipation structure of the container of the integrated electrical equipment cabinet according to claim 1 , wherein the top plate of the installation frame comprises a steel plate, and rock wool is sandwiched in the steel plate. 11 .