Industrial and commercial energy storage cabinet PCS heat management device

Abstract

The utility model discloses an industrial and commercial energy storage cabinet PCS heat management device which comprises an energy storage cabinet body, the back face of the energy storage cabinet body is provided with a double door formed by rear door plates which are symmetrical left and right, and an integrated industrial air conditioner is embedded in each rear door plate. The inner side of each rear door plate is fixedly provided with an air conditioner fan cover assembly for adjusting the air outlet volume of an air outlet of the corresponding integrated industrial air conditioner, each air conditioner fan cover assembly is connected and communicated with a PCS shell in the energy storage cabinet body through a PCS air supply duct, each PCS air supply duct is provided with an electromagnetic valve, a PCS cooling fan and a temperature sensor are installed in the PCS shell, and the PCS cooling fan is connected with the PCS cooling fan. PCS heat dissipation holes are formed in the PCS shell, the air outlet side of the PCS heat dissipation fan faces the PCS heat dissipation holes, a control box with a controller is installed in the energy storage cabinet body, and the temperature sensor, the two electromagnetic valves and the PCS heat dissipation fan are all electrically connected with the controller. The utility model has the advantages of simple structure, safety, reliability and high appearance quality.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage cabinets, in particular to a thermal management device for an industrial and commercial energy storage cabinet PCS (energy storage converter). Background Art

[0002] At present, industrial and commercial energy storage cabinets PCS are core components or equipment in the industrial and commercial energy storage process. In the energy storage system, they are responsible for converting direct current into alternating current or vice versa. The power density is usually high, and its heat dissipation method is an important aspect related to its performance and reliability.

[0003] There are currently two main PCS heat dissipation methods, and the heat dissipation media are divided into air cooling and liquid cooling; in addition to air cooling and liquid cooling, there are other special heat dissipation methods, such as the use of phase change materials.

[0004] The advantages of air-cooled PCS are: simpler than liquid cooling system, easier to install and maintain, lower cost of air cooling, no complicated liquid cooling system facilities and less pipeline space occupied, no risk of leakage of liquid cooling system; suitable for areas with general power density and low ambient temperature.

[0005] The disadvantages of air-cooled PCS are: high noise, the air-cooled system needs to use fans to accelerate heat dissipation, strong environmental dependence, and when the ambient temperature is relatively poor, the heat dissipation effect may be reduced.

[0006] The advantages of liquid-cooled PCS are: high heat dissipation efficiency, liquid cooling system can remove temperature more quickly than air cooling system; low noise, liquid cooling noise is generally lower, which helps to provide a quieter working environment; temperature control is more stable, which helps to solve problems such as equipment failure due to excessive temperature, and has a wider range of environmental adaptability.

[0007] The disadvantages of liquid-cooled PCS are: complex design and installation. The liquid cooling system requires the design and installation of coolers, cooling pipes and other facilities, which is more complicated than the air cooling system, so the cost is also higher than the air cooling system; maintenance is difficult, and the liquid coolant needs to be replaced and the pipes need to be maintained regularly; if not maintained in time, the stability and life of the liquid cooling system will be affected.

[0008] Heat dissipation can better control temperature, adapt to higher power density and ambient temperature, and is suitable for long-term high-load operation conditions. The disadvantage is that an additional liquid cooling unit or refrigeration system is required, which increases maintenance costs, is relatively complex to design and install, and has the risk of leakage or failure of the liquid cooling system. Therefore, in order to reduce costs, facilitate maintenance, and meet high-power operation, the existing industrial and commercial energy storage cabinets are optimized to increase the air volume at the PCS air inlet and reduce the air inlet temperature; reduce the operating failure rate of the equipment, thereby achieving stable operation and revenue of the equipment; use existing product equipment for automatic control, add 2-way ventilation to the PCS air inlet; automatically control the PCS air inlet through the overall thermal management strategy; and reduce energy consumption. Utility Model Content

[0009] The utility model aims at solving the problems and shortcomings of the prior art and provides a PCS thermal management device for an industrial and commercial energy storage cabinet.

[0010] The utility model solves the above technical problems through the following technical solutions:

[0011] The utility model provides a PCS thermal management device for an industrial and commercial energy storage cabinet, characterized in that it comprises an energy storage cabinet body, the back of the energy storage cabinet body is formed of a double door by left-right symmetrical rear door panels, each of the rear door panels is embedded with an integrated industrial air conditioner, an air conditioning hood assembly for adjusting the air volume of an air outlet of the corresponding integrated industrial air conditioner is fixed on the inner side of each of the rear door panels, each of the air conditioning hood assemblies is connected and communicated with a PCS shell in the energy storage cabinet body through a PCS air supply duct, each of the PCS air supply ducts is provided with a solenoid valve, a PCS cooling fan and a temperature sensor are installed in the PCS shell body, a PCS cooling hole is opened on the PCS shell body, the air outlet side of the PCS cooling fan faces the PCS cooling hole, a control box containing a controller is installed in the energy storage cabinet body, and the temperature sensor, two solenoid valves and the PCS cooling fan are all electrically connected to the controller.

[0012] The utility model has a simple structure, is safe and reliable, and has a high appearance quality. For the safe operation of the PCS, it is necessary to reduce the temperature rise while taking into account maintenance and low cost. This heat dissipation structure is designed. The PCS heat dissipation ensures its stable operation through triple heat dissipation, so that the PCS can work stably and normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an isometric view of a PCS thermal management device for an industrial and commercial energy storage cabinet according to a preferred embodiment of the utility model.

[0014] Figure 2 This is a schematic diagram of the back structure of the PCS thermal management device for industrial and commercial energy storage cabinets according to a preferred embodiment of the utility model.

[0015] Figure 3 This is a schematic structural diagram of an air conditioner hood assembly according to a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0017] When industrial and commercial energy storage PCS equipment is running at high power, it generates a lot of heat. If it cannot be discharged in time, it will affect the power output and safe service life of the PCS. Based on this, Figure 1-3 As shown, the present embodiment provides a PCS thermal management device for an industrial and commercial energy storage cabinet, which includes an energy storage cabinet 1, the back of the energy storage cabinet 1 is formed of a double door by a left-right symmetrical rear door panel 2, each rear door panel 2 is embedded with an integrated industrial air conditioner 3, specifically two integrated industrial air conditioners 3 are symmetrically arranged, each integrated industrial air conditioner 3 is fixed to the corresponding rear door panel 2 by bolts through the flange provided by the air conditioner, and an air conditioner hood assembly 4 for adjusting the air outlet of the corresponding integrated industrial air conditioner 3 is fixed to the inner side of each rear door panel 2, each air conditioner hood assembly 4 is connected to the PCS housing 6 in the energy storage cabinet 1 through a PCS air supply duct 5, each PCS air supply duct 5 is provided with a solenoid valve (not shown in the figure), a PCS cooling fan 7 and a temperature sensor are installed in the PCS housing 6, a PCS cooling hole is opened on the PCS housing 6, and the air outlet side of the PCS cooling fan 7 faces the PCS cooling hole, a control box containing a controller is installed in the energy storage cabinet 1, and the temperature sensor, two solenoid valves and the PCS cooling fan 7 are all electrically connected to the controller.

[0018] Among them, each air-conditioning hood assembly 4 includes an air-conditioning hood shell 41, and five air volume adjustment gear mounting holes 411 are opened from top to bottom on the side of each air-conditioning hood shell 41 away from the air outlet of the corresponding integrated industrial air conditioner 3. The inclined upper end of each inclined wind shield plate 42 is bolted to any of the five corresponding air volume adjustment gear mounting holes 411, and each inclined wind shield plate 5 forms an acute angle with the horizontal plane, and the inclined surface of each inclined wind shield plate 5 is connected to the air outlet of the corresponding integrated industrial air conditioner 3.

[0019] According to the principle of cold air sinking, 5 exhaust air volume adjustment gear mounting holes are set. The operator can adjust the installation positions of the inclined wind shield 42 and the air conditioning hood shell 41 according to different ambient temperatures and working conditions as well as different temperatures in spring, summer, autumn and winter, and further adjust the amount of air delivered to the PCS air inlet side by the integrated industrial air conditioner 3 through the corresponding PCS air supply duct 5.

[0020] A plurality of ventilation holes 43 are provided on the inclined surface of each inclined wind shield plate 42 , and a plurality of air outlet holes for supplying cold air to dissipate heat to electronic components other than the PCS 8 in the energy storage cabinet 1 are provided on the top and bottom of each air conditioning hood shell 41 .

[0021] Each PCS air supply duct 5 uses a flame-retardant corrugated pipe with a smooth inner wall. The corrugated pipe is retractable and easy to install; the flame retardant grade reaches UL94-V0 grade.

[0022] In this solution, the installation positions of the two integrated industrial air conditioners 3 are synchronously symmetrical, meeting the requirements of symmetrical output of air conditioning cooling and heat dissipation. The middle of each PCS air supply duct 5 is connected to the corresponding solenoid valve by a quick plug connection, which is convenient for installation and maintenance.

[0023] The air intake mode of each integrated industrial air conditioner 3 is upper air intake and lower air outlet. The air outlet direction and air volume of each integrated industrial air conditioner 3 are non-uniform. The air volume decreases from top to bottom. The air outlet direction is about 45 degrees to the air conditioner surface.

[0024] The controller adopts STM32 series single-chip microcomputer. According to the function of each port pin of STM32 series single-chip microcomputer, each electronic device (temperature sensor, two solenoid valves and PCS cooling fan 7) is electrically connected to which specific port pin of STM32 series single-chip microcomputer is a conventional setting for technicians in this field and is prior art.

[0025] The temperature sensor, two solenoid valves, PCS cooling fan 7 and controller selected in this embodiment according to actual needs are all existing commercial products, and their structures have not been improved. They are all existing structures. The specific structures, circuit designs and working principles of the temperature sensor, two solenoid valves, PCS cooling fan 7 and controller are all publicly available prior arts. The specification only uses these electronic devices to achieve certain functions, and there is no need to describe in detail the specific structures, circuit designs and working principles of these existing electronic devices. The entire solution is also clear.

[0026] The utility model has a simple structure, is safe and reliable, and has a high appearance quality. For the safe operation of the PCS, it is necessary to reduce the temperature rise while taking into account maintenance and low cost. This heat dissipation structure is designed. The PCS heat dissipation ensures its stable operation through triple heat dissipation, so that the PCS can work stably and normally.

[0027] 1. When the temperature is low, heat is dissipated through the PCS heat dissipation holes on the PCS housing 6.

[0028] 2. When the temperature is high, the controller turns on the PCS cooling fan 7 , and the PCS cooling fan 7 dissipates heat inside the PCS housing 6 .

[0029] 3. When the temperature sensor detects that the temperature inside the PCS shell 6 is very high, the controller controls the two solenoid valves to open and controls the two integrated industrial air conditioners 3 to turn on. The air outlet of the integrated industrial air conditioner 3 is sent into the PCS shell 6 through the corresponding PCS air supply duct 5 to dissipate heat inside the PCS shell 6.

[0030] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications fall within the protection scope of the present invention.

Claims

1. A PCS thermal management device for industrial and commercial energy storage cabinets, characterized in that: It includes an energy storage cabinet, the back of which is composed of a double door formed by left-right symmetrical rear door panels, each of which is embedded with an integrated industrial air conditioner, and an air conditioning hood assembly for adjusting the air volume of the corresponding integrated industrial air conditioner is fixed on the inner side of each rear door panel, each of which is connected to a PCS shell in the energy storage cabinet through a PCS air supply duct, and each of which is provided with a solenoid valve, and a PCS cooling fan and a temperature sensor are installed in the PCS shell, and a PCS cooling hole is opened on the PCS shell, and the air outlet side of the PCS cooling fan faces the PCS cooling hole, and a control box containing a controller is installed in the energy storage cabinet, and the temperature sensor, two solenoid valves and the PCS cooling fan are all electrically connected to the controller.

2. The PCS thermal management device for industrial and commercial energy storage cabinets according to claim 1, characterized in that: Each of the air conditioning hood components comprises an air conditioning hood shell, in which an inclined wind shield is fixed, each of the inclined wind shield forms an acute angle with the horizontal plane, and the inclined surface of each inclined wind shield is connected to the corresponding air outlet of the integrated industrial air conditioner.

3. The PCS thermal management device for industrial and commercial energy storage cabinets according to claim 2, characterized in that: A plurality of rows of air volume adjustment gear mounting holes are provided on the side of each of the air-conditioning hood shells away from the air outlet of the corresponding integrated industrial air conditioner from top to bottom, and the inclined upper end of each of the inclined wind shield plates is bolted to any of the corresponding multiple rows of air volume adjustment gear mounting holes.

4. The PCS thermal management device for industrial and commercial energy storage cabinets according to claim 2, characterized in that: A plurality of ventilation holes are provided on the inclined surface of each of the inclined wind shield plates, and a plurality of air outlet holes are provided on the top and bottom of each of the air conditioner hood shells for supplying cold air and heat to the electronic components other than the PCS in the energy storage cabinet.

5. The PCS thermal management device for industrial and commercial energy storage cabinets according to claim 1, characterized in that: The two integrated industrial air conditioners are symmetrically arranged, and each integrated industrial air conditioner is fixed to the corresponding rear door panel by bolts through the flange provided by the air conditioner.

6. The PCS thermal management device for industrial and commercial energy storage cabinets according to claim 1, characterized in that: Each of the PCS air supply ducts adopts a flame-retardant corrugated pipe with a smooth inner wall.

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