An energy storage cabinet

Abstract

The utility model discloses a kind of energy storage cabinets, comprising: cabinet, with the first cabinet cavity that can be closed arrangement;PCS, is housed in the first cabinet cavity;Heat exchange system, including heating part and heat dissipation part, the heating part is located in the first cabinet cavity, the heat dissipation part is located the outside of the cabinet;The heat dissipation part and the heating part form heat transfer path between each other, to make the heat absorbed by heating part be guided to the heat dissipation part.In the above energy storage cabinet, by housing PCS in closed first cabinet cavity, and by heat exchange system, heat is dissipated to the outside of cabinet, ensure the use of PCS, while can avoid the wind outside the cabinet into PCS, to affect the service life of PCS, while improve application safety, especially suitable for high safety requirement indoor use.Summarized above, the energy storage cabinet can effectively solve the problem of current PCS bad heat dissipation mode.

Description

Technical Field

[0001] This utility model relates to the field of energy storage technology, and more specifically, to an energy storage cabinet. Background Technology

[0002] The energy storage cabinet needs to use a PCS (Power Conversion System). Currently, the PCS is installed in the cabinet cavity of the energy storage cabinet. The cabinet cavity is set away from the two sides and is open, so that the low temperature air in the air enters from one side opening, and exchanges heat with the PCS to cool the PCS as it passes through the PCS.

[0003] In the process of realizing this invention, the inventors discovered that the prior art has at least the following problems: when the PCS is in long-term contact with the outside air, especially when air cooling is required, it will come into contact with a large amount of fresh air from the outside, which will affect the service life of the PCS. Therefore, the current energy storage cabinet has the problem of poor heat dissipation of the PCS. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide an energy storage cabinet that can effectively solve the problem of poor heat dissipation in current PCS systems.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An energy storage cabinet includes:

[0007] The cabinet has a first cabinet cavity that can be sealed to isolate it from external wind.

[0008] PCS is housed in the first cabinet cavity;

[0009] A heat exchange system includes a heating section and a heat dissipation section. The heating section is located in the first cabinet cavity, and the heat dissipation section is located outside the cabinet. The heat dissipation section and the heating section form a heat transfer path between them so that the heat absorbed by the heating section is directed to the heat dissipation section.

[0010] In the aforementioned energy storage cabinet, when heat dissipation is required during PCS operation, it is not necessary to open the cabinet. The heat is transferred from the PCS within the first cabinet cavity to the heat dissipation section on the outside of the cabinet via a heat exchange system, where it is then dissipated. By housing the PCS within a closed first cabinet cavity and dissipating heat to the outside of the cabinet through the heat exchange system, the usability of the PCS is ensured. Simultaneously, it prevents outside air from entering the PCS, thus avoiding impacting its lifespan, and improves application safety, making it particularly suitable for indoor use with high safety requirements. In summary, this energy storage cabinet effectively solves the problem of inadequate heat dissipation in current PCS methods.

[0011] In some technical solutions, the heated part includes a liquid-cooled heat exchanger disposed in the PCS.

[0012] In some technical solutions, the PCS has an air-cooled channel, and the heated part is provided with a first heat exchanger located in the first cabinet cavity; the first cabinet cavity is provided with a ventilation device so that the heat exchanger can circulate air between the first heat exchanger and the air-cooled channel to achieve heat exchange.

[0013] In some technical solutions, the first heat exchanger is located at the air outlet of the PCS, and the ventilation device is located at the air inlet of the PCS.

[0014] In some technical solutions, along the ventilation direction of the air-cooled channel, the PCS and the first heat exchanger are arranged side by side in the upper part of the first cabinet cavity; the lower cavity of the first cabinet cavity forms a ventilation channel to allow the air outlet of the first heat exchanger to flow to the air inlet of the air-cooled channel.

[0015] In some technical solutions, the temperature control unit component of the heat exchange system is located in the lower cavity of the first cabinet and directly below the first heat exchanger, and the ventilation channel extends inside the temperature control unit component; multiple devices of the temperature control unit component extend along the ventilation direction of the ventilation channel.

[0016] Some technical solutions also include electrical equipment located in the lower cavity of the first cabinet, and the ventilation channel passes through the electrical equipment.

[0017] In some technical solutions, a first cabinet door is provided on the front side of the first cabinet cavity, an air inlet of the air-cooled channel is formed on the front side of the PCS, an air outlet of the air-cooled channel is formed on the rear side of the PCS, the first heat exchanger is provided on the rear side of the PCS, and a gap is provided between the front side of the PCS and the first cabinet door to form a ventilation cavity, so that the air on the air outlet side of the first heat exchanger can flow through the ventilation cavity to the air inlet of the air-cooled channel.

[0018] In some technical solutions, the first heat exchanger is a dry cooler, and a water receiving tray is provided on the lower side of the first heat exchanger.

[0019] In some technical solutions, the heat dissipation section includes a second heat exchanger located outside the cabinet. The first heat exchanger and the second heat exchanger achieve heat exchange through the flow of heat exchange fluid between the first heat exchanger and the second heat exchanger and / or through a formed mechanical compression refrigeration system.

[0020] In some technical solutions, the cabinet has a second enclosed cavity; an energy storage battery is installed inside the second cavity; and the heat exchange system is used to conduct heat from the energy storage battery to the outside of the cabinet. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the internal structure of the energy storage cabinet provided in an embodiment of this utility model;

[0023] Figure 2 A schematic diagram of the front internal structure of the energy storage cabinet provided in an embodiment of this utility model;

[0024] Figure 3 A schematic diagram of the inner structure of the first cabinet cavity provided in an embodiment of this utility model;

[0025] Figure 4 A schematic diagram of the inner structure of the first cabinet cavity after removing the PCS, provided for an embodiment of this utility model;

[0026] Figure 5 A schematic diagram of the front structure of the energy storage cabinet provided in an embodiment of this utility model;

[0027] Figure 6 A schematic diagram of a heat exchange system provided in an embodiment of this utility model;

[0028] Figure 7 A schematic diagram of another heat exchange system provided in this embodiment of the present utility model;

[0029] Figure 8 This is a schematic diagram of another heat exchange system provided in an embodiment of the present utility model.

[0030] The following labels are shown in the attached diagram:

[0031] Cabinet 1, PCS 2, Heated section 3, Heat dissipation section 4, Temperature control unit assembly 5, Electrical equipment 6, First cabinet door 7, Water tray 8, Energy storage battery 9, Second cabinet door 10, Evaporator 11, Compressor 12, Condenser 13, Battery pack heat exchange device 14, Electric heating device 15, Main circulation pump 16, Intermediate heat exchanger 17, Auxiliary circulation pump 18;

[0032] First cabinet cavity 1-1, second cabinet cavity 1-2;

[0033] Ventilation device 2-1;

[0034] Liquid-cooled heat exchanger 3-1, dry cooler 3-2;

[0035] 4-1 external radiator. Detailed Implementation

[0036] This utility model discloses an energy storage cabinet that can effectively solve the problem of poor heat dissipation in current PCS systems.

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] Please see Figures 1-8 , Figure 1 A schematic diagram of the internal structure of the energy storage cabinet provided in an embodiment of this utility model; Figure 2 A schematic diagram of the front internal structure of the energy storage cabinet provided in an embodiment of this utility model; Figure 3 A schematic diagram of the inner structure of the first cabinet cavity provided in an embodiment of this utility model; Figure 4 A schematic diagram of the inner structure of the first cabinet cavity after removing the PCS, provided for an embodiment of this utility model; Figure 5 A schematic diagram of the front structure of the energy storage cabinet provided in an embodiment of this utility model; Figure 6 A schematic diagram of the structure of an energy storage cabinet temperature control system provided in an embodiment of this utility model; Figure 7 A schematic diagram of the structure of another energy storage cabinet temperature control system provided in this embodiment of the utility model; Figure 8 This is a structural schematic diagram of another energy storage cabinet temperature control system provided in an embodiment of the present utility model.

[0039] In some embodiments, an energy storage cabinet is provided, specifically, the energy storage cabinet includes a cabinet body 1, a PCS2 (Power Conversion System) and a heat exchange system.

[0040] The cabinet 1 has a first cabinet cavity 1-1 that can be sealed to isolate external airflow. The PCS2 is housed in the first cabinet cavity 1-1. The first cabinet cavity 1-1 may be equipped with a door for easy installation of the PCS2. It should be noted that the sealing setting here does not require complete sealing. Small openings or gaps for a small amount of ventilation are acceptable, and a small amount of airflow will not have a substantial impact.

[0041] The cooling of PCS2 can be achieved by using a heat exchange system to transfer the heat from the PCS2 enclosed in the first cabinet cavity 1-1 to the outside of the cabinet 1, thus solving the cooling problem of PCS2 in the closed state.

[0042] Specifically, the heat exchange system can include a heating section 3 and a heat dissipation section 4. The heating section 3 is located in the first cabinet cavity 1-1, and can absorb heat directly or indirectly from the PCS2. It generally includes two main heating methods: one is thermal contact, and the other is heat transfer through a circulating airflow. The heat dissipation section 4 is located on the outside of the cabinet 1 to dissipate heat to the outside of the cabinet 1. On the outside of the cabinet 1, it exchanges heat with the outside air, which can be achieved through evaporative cooling, water cooling, air cooling, etc.

[0043] The heat dissipation part 4 and the heat receiving part 3 form a heat transfer path between them, so that the heat absorbed by the heat receiving part 3 can be transferred to the heat dissipation part 4 and dissipated to the outside of the cabinet 1 through the heat dissipation part 4, thereby guiding the heat at PCS2 enclosed in the first cabinet cavity 1-1 to the outside of the cabinet 1. The heat transfer path between the heat dissipation part 4 and the heat receiving part 3 can be direct or indirect; it includes at least two of the following heat transfer methods: one is heat transfer through flowing liquid; the other is heat transfer through compression refrigeration. The heat transfer path between the heat receiving part 3 and the heat dissipation part 4 can include only one of the above heat transfer methods, or it can simultaneously provide multiple heat transfer methods for sequential heat transfer.

[0044] Specifically, there are several examples: One example is to set up a liquid cooling system, with one end of the liquid cooling system located on the outside of the cabinet 1 to achieve external heat dissipation as a heat dissipation part 4, while the other end of the liquid cooling system serves as a heat receiving part 3, located in the first cabinet cavity 1-1, with liquid cooling fluid circulating at both ends; Another example is to set up a compression refrigeration system, with the condenser 13 of the compression refrigeration system located on the outside of the cabinet 1 as a heat dissipation part 4, while the evaporator 11 of the compression refrigeration system is located on the inside of the cabinet 1 as a heat receiving part 3, or the evaporator 11 of the compression refrigeration system exchanges heat with a heat exchange structure inside the cabinet 1, and the heat exchange structure serves as the heat receiving part 3.

[0045] In the aforementioned energy storage cabinet, when the PCS2 needs heat dissipation during operation, it is not necessary to open the cabinet 1. The heat is transferred from the PCS2 in the first cabinet cavity 1-1 to the heat dissipation part 4 on the outside of the cabinet 1 via the heat transfer path established by the heat exchange system, thus dissipating the heat and achieving heat dissipation. By housing the PCS2 within the closed first cabinet cavity 1-1 and dissipating the heat to the outside of the cabinet 1 through the heat exchange system, the usability of the PCS2 is ensured. Simultaneously, it prevents external air from entering the PCS2, thus avoiding its lifespan, and improves application safety, making it particularly suitable for indoor use with high safety requirements. In summary, this energy storage cabinet effectively solves the problem of poor heat dissipation in current PCS2 methods.

[0046] In some embodiments, to facilitate heating from the PCS2, the heated part 3 may include a liquid-cooled heat exchanger 3-1 disposed within the PCS2. The liquid-cooled heat exchanger 3-1 contacts the heat-generating device in the PCS2, absorbing heat from the heat-generating device into the fluid within the liquid-cooled heat exchanger 3-1. The fluid in the liquid-cooled heat exchanger 3-1 can dissipate heat by flowing to the outer heat dissipation part 4; alternatively, it can exchange heat with the outer heat dissipation part 4 through heat exchange. Using the liquid-cooled heat exchanger 3-1 to exchange heat with the PCS2 can improve heat exchange efficiency and reduce energy consumption.

[0047] In some embodiments, the PCS2 may have an air-cooled channel, and the heated part 3 may be provided with a first heat exchanger located in the first cabinet cavity 1-1; wherein the first cabinet cavity 1-1 is provided with a ventilation device 2-1, so that the heat exchanger can circulate air between the first heat exchanger and the air-cooled channel to achieve heat exchange. That is, the air introduced into the air-cooled channel by the ventilation device 2-1 will absorb heat and heat up the heating device in the PCS2. The heated air, under the ventilation of the ventilation device 2-1, enters the first heat exchanger, transfers heat to the first heat exchanger, forms cooled air, and then flows back into the air-cooled channel.

[0048] In some embodiments, the first heat exchanger is located at the air outlet of the air-cooled passage of the PCS2 to prevent the temperature in other locations of the first cabinet cavity 1-1 from becoming too high, so as to cool down the highest point temperature as quickly as possible. This is because the air outlet temperature of the PCS2 is generally relatively high, and if it is cooled down in time by the first heat exchanger, it is beneficial to arrange other structures in the first cabinet cavity 1-1.

[0049] A ventilation device 2-1 can be installed at the air inlet of the air-cooled channel of PCS2. The ventilation device 2-1 blows air directly into the air-cooled channel through the air inlet to ensure better concentration of the air jet in the air-cooled channel, faster flow rate, and convenient control of air volume. This allows for timely adjustment of the air outlet temperature of the air-cooled channel by adjusting the fan speed.

[0050] The specific locations of the first heat exchanger and ventilation device 2-1 can also be determined based on other considerations, and they may be located in other places. For example, in one example, both the first heat exchanger and ventilation device 2-1 are located at the air outlet and / or air inlet of the air-cooled channel.

[0051] It should be noted that PCS2 is generally integrated into a single module, forming an internal air-cooling channel. The heat-generating components are exposed within this channel to ensure sufficient contact with the airflow for heat dissipation. A specific PCS2 may include a housing with an air inlet and an air outlet at opposite ends, with the heat-generating components housed within the housing. The housing may have a rectangular shape. Alternatively, the PCS2 may also utilize a corresponding channel formed between itself and the wall of the first cabinet cavity 1-1 to serve as an air-cooling channel.

[0052] In some embodiments, to facilitate heat dissipation for other structures in the first cabinet cavity 1-1, the PCS2 and the first heat exchanger are arranged side by side in the upper part of the first cabinet cavity 1-1 along the ventilation direction of the air-cooling channel. The first heat exchanger can be located at the air inlet of the PCS2 or at the air outlet of the PCS2, but it is preferred to locate it at the air outlet of the PCS2.

[0053] The lower cavity of the first cabinet chamber 1-1 forms a ventilation channel to direct the airflow from the outlet side of the first heat exchanger to the air inlet of the air-cooled channel. Other equipment requiring heat dissipation can be installed in this ventilation channel, such as the compressor 12 of the refrigeration system, the electrical control box of the refrigeration system, or a UPS power supply.

[0054] In some embodiments, specifically, the heat exchange system may be provided with a temperature control unit 5, which can help the first heat exchanger dissipate heat to the outside, or the first heat exchanger can dissipate heat to the outside by means of a device other than the temperature control unit 5.

[0055] The temperature control unit 5 can be installed in the lower cavity of the first cabinet cavity 1-1, that is, below the PCS2, and directly below the first heat exchanger, so that the air outlet side of the first heat exchanger can flow through the temperature control unit 5. In other words, the ventilation channel extends into the temperature control unit 5 to the air outlet side of the temperature control unit 5.

[0056] To facilitate the flow of air in the temperature control unit component 5, multiple devices in the temperature control unit component 5 can be arranged in parallel along the ventilation direction of the ventilation channel, forming a ventilation gap between them as part of the ventilation channel.

[0057] In the above configuration, on the one hand, placing the temperature control unit 5 directly below the first heat exchanger facilitates the pipeline connection between the first heat exchanger and the temperature control unit 5. On the other hand, placing the first heat exchanger above allows the cooling air to flow downwards, conforming to the sinking characteristic of low-temperature fluids and improving flow efficiency.

[0058] In some embodiments, some electrical devices 6 may be further placed in the lower part of the first cabinet cavity 1-1, and the ventilation channel passes through the electrical devices 6 to cool the electrical devices 6 during the process of passing through the electrical devices 6.

[0059] In some embodiments, a first cabinet door 7 is provided on the front side of the first cabinet cavity 1-1, allowing the PCS2 to be inserted into the first cabinet cavity 1-1 from the front opening of the cabinet body 1. The front side of the PCS2 has an air-cooled channel inlet, and the rear side of the PCS2 forms an air-cooled channel outlet. A first heat exchanger is provided on the rear side of the PCS2. This allows air to flow from the front to the rear, preventing air from blowing outwards when the first cabinet door 7 is opened.

[0060] At this time, the gap between the front side of PCS2 and the first cabinet door 7 can be set to form a ventilation cavity, so that the air on the air outlet side of the first heat exchanger can flow through the ventilation cavity to the air inlet of the air-cooled channel.

[0061] To facilitate the installation of PCS2, ear plates can be provided on both the left and right sides of PCS2 to facilitate its fixed connection to the uprights inside the first cabinet cavity 1-1, thereby better securing PCS2.

[0062] In some embodiments, considering that the outlet temperature of PCS2 may be relatively high, which may result in a large temperature difference between the inlet and outlet of the first heat exchanger, which may easily lead to condensation on the first heat exchanger, it is preferred that the first heat exchanger is a dry cooler 3-2, and a water receiving tray 8 is provided on the lower side of the first heat exchanger.

[0063] In some embodiments, in order to facilitate heat dissipation from the first heat exchanger, the heat dissipation section 4 may include a second heat exchanger located outside the cabinet 1, wherein the first heat exchanger and the second heat exchanger achieve heat exchange through fluid exchange and / or through a formed mechanical compression refrigeration system.

[0064] The first heat exchanger and the second heat exchanger exchange heat through the flow of heat exchange fluid between them, such as by connecting the first heat exchanger and the second heat exchanger to the same liquid cooling cycle system.

[0065] The first heat exchanger and the second heat exchanger achieve heat exchange through a mechanical compression refrigeration system. The first heat exchanger can be an evaporator 11 and the second heat exchanger can be a condenser 13, both located in the same compression refrigeration system. Alternatively, the first heat exchanger can be an evaporator 11 of a mechanical compression refrigeration system or the second heat exchanger can be a condenser 13 of a mechanical compression refrigeration system, with heat exchange between them achieved through the heat exchanger.

[0066] As attached Figure 6 , 8 As shown, the first heat exchanger is a dry cooler 3-2, and the second heat exchanger is a condenser 13. The liquid cooling system in which the dry cooler 3-2 is located exchanges heat with an evaporator 11, and the evaporator 11 and the condenser 13 are located in the same compression refrigeration system.

[0067] The first heat exchanger and the second heat exchanger achieve heat exchange through the flow of heat exchange fluid between them and through a mechanical compression refrigeration system. Specifically, the second heat exchanger can be divided into two parts: one part is a condenser 13, and the first heat exchanger can exchange heat with an evaporator 11. The evaporator 11 and the condenser 13 are located in the same compression refrigeration system, so the first heat exchanger and a part of the second heat exchanger achieve heat exchange through the mechanical compression refrigeration system; the other part is a liquid-cooled radiator, which achieves heat exchange with the first heat exchanger through the exchange fluid.

[0068] In some embodiments, the cabinet 1 is generally further provided with a second cabinet cavity 1-2 that can be closed; wherein an energy storage battery 9 is provided in the second cabinet cavity 1-2; wherein a heat exchange system is used to conduct heat from the energy storage battery 9 to the outside of the cabinet 1. Correspondingly, a second cabinet door 10 may still be provided in the second cabinet cavity 1-2, and the first cabinet door 7 and the second cabinet door 10 can be opened and closed independently.

[0069] A schematic diagram of the heat exchange system in some embodiments is shown in the attached figure. Figure 6 As shown, the heat exchange system mainly includes a liquid cooling system and a compression refrigeration system. The condenser 13 of the compression refrigeration system is the aforementioned heat dissipation part 4, which is plate-shaped and attached to the rear side of the cabinet 1. The evaporator 11 of the compression refrigeration system includes a refrigerant channel and a liquid cooling channel for heat exchange. The refrigerant channel, condenser 13, and compressor 12 are connected in series to form the compression refrigeration system. The heating part 3 is the dry cooler 3-2, i.e., the aforementioned first heat exchanger, located at the rear air outlet of PCS2. The battery pack heat exchange device 14 is a battery liquid cooling device, located at the battery pack for liquid cooling. The battery pack heat exchange device 14 and the dry cooler 3-2 are connected in parallel and connected to both ends of the liquid cooling channel to form a liquid cooling system. The liquid cooling system includes a main circulation pump 16 and an electric heating device 15.

[0070] A schematic diagram of the heat exchange system in some embodiments is shown in the attached figure. Figure 7 As shown, the heat exchange system mainly includes a main liquid cooling system, a compression refrigeration system, and an auxiliary liquid cooling system. The condenser 13 of the compression refrigeration system is the aforementioned heat dissipation part 4, and is plate-shaped and attached to the rear side of the cabinet 1. The evaporator 11 of the compression refrigeration system includes a refrigerant channel and a liquid cooling channel for heat exchange. The refrigerant channel, condenser 13, and compressor 12 are connected in series to form the compression refrigeration system. The heat receiving part 3 is a liquid-cooled heat exchanger 3-1, located in the PCS2 to directly contact the heat-generating components of the PCS2. The battery pack heat exchange device 14 is a battery liquid cooling device located at the battery pack for liquid cooling. The battery pack heat exchange device 14, the main circulation pump 16, and the liquid cooling channels are interconnected to form the main liquid cooling system. The liquid-cooled heat exchanger 3-1 forms an auxiliary circulation system through the auxiliary circulation pump 18. One heat exchange channel of the intermediate heat exchanger 17 is connected in parallel with the auxiliary circulation pump 18 at both ends of the liquid-cooled heat exchanger 3-1. The inlet of the heat exchange channel at the other end of the intermediate heat exchanger 17 is connected to the outlet end of the main circulation pump 16, and the outlet is connected to the inlet end of the main circulation pump 16. This allows a portion of the fluid to be diverted into the intermediate heat exchanger 17 for heat exchange by utilizing the pressure difference between the two ends of the main circulation pump 16.

[0071] A schematic diagram of the heat exchange system in some embodiments is shown in the attached figure. Figure 8 As shown, the heat exchange system mainly includes a main liquid cooling system, a compression refrigeration system, and an auxiliary liquid cooling system. The condenser 13 of the compression refrigeration system is the aforementioned heat dissipation part 4, which is plate-shaped and attached to the rear side of the cabinet 1. The evaporator 11 of the compression refrigeration system includes a refrigerant channel and a liquid cooling channel for heat exchange. The refrigerant channel, condenser 13, and compressor 12 are connected in series to form the compression refrigeration system. The heat receiving part 3 is the dry cooler 3-2, i.e., the aforementioned first heat exchanger, located at the rear air outlet of PCS2. The battery pack heat exchange device 14 is a battery liquid cooling device located at the battery pack for liquid cooling. The battery pack heat exchange device 14, the main circulation pump 16, and the liquid cooling channel are interconnected to form the main liquid cooling system. The liquid-cooled heat exchanger 3-1 forms an auxiliary circulation system with the external radiator 4-1 via the auxiliary circulation pump 18. One liquid supply channel connects the inlet to the outlet of the main circulation pump 16 and the outlet to the inlet of the dry cooler 3-2. A return channel connects the outlet to the inlet of the main circulation pump 16 and the outlet to the outlet of the dry cooler 3-2, utilizing the pressure difference across the main circulation pump 16 to divert a portion of the fluid into the dry cooler 3-2. The dry cooler 3-2 can then dissipate heat either through the external radiator 4-1 or through a compression refrigeration system.

[0072] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0073] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An energy storage cabinet, characterized in that, include: The cabinet (1) has a first cabinet cavity (1-1) that can be closed. PCS (2) is housed in the first cabinet cavity (1-1); The heat exchange system includes a heating part (3) and a heat dissipation part (4). The heating part (3) is located in the first cabinet cavity (1-1), and the heat dissipation part (4) is located outside the cabinet body (1). The heat dissipation part (4) and the heating part (3) form a heat transfer path between each other so that the heat absorbed by the heating part (3) is directed to the heat dissipation part (4).

2. The energy storage cabinet according to claim 1, characterized in that, The heated part (3) includes a liquid-cooled heat exchanger (3-1) disposed in the PCS (2).

3. The energy storage cabinet according to claim 1, characterized in that, The PCS (2) has an air-cooled channel, and the heated part (3) is provided with a first heat exchanger located in the first cabinet cavity (1-1); the first cabinet cavity (1-1) is provided with a ventilation device (2-1) so that the air can circulate between the first heat exchanger and the air-cooled channel to achieve heat exchange.

4. The energy storage cabinet according to claim 3, characterized in that, The first heat exchanger is located at the air outlet of the PCS (2), and the ventilation device (2-1) is located at the air inlet of the PCS (2).

5. The energy storage cabinet according to claim 3, characterized in that, Along the ventilation direction of the air-cooled channel, the PCS (2) and the first heat exchanger are arranged side by side in the upper part of the first cabinet cavity (1-1); the lower cavity of the first cabinet cavity (1-1) forms a ventilation channel to allow the air outlet of the first heat exchanger to flow to the air inlet of the air-cooled channel.

6. The energy storage cabinet according to claim 5, characterized in that, The temperature control unit component (5) of the heat exchange system is located in the lower cavity of the first cabinet cavity (1-1) and directly below the first heat exchanger. The ventilation channel extends into the temperature control unit component (5). Multiple devices of the temperature control unit component (5) extend along the ventilation direction of the ventilation channel.

7. The energy storage cabinet according to claim 5, characterized in that, It also includes electrical equipment (6) installed in the lower cavity of the first cabinet cavity (1-1), and the electrical equipment (6) is located in the ventilation channel.

8. The energy storage cabinet according to claim 5, characterized in that, The first cabinet cavity (1-1) is provided with a first cabinet door (7) on the front side, the air inlet of the air-cooled channel is formed on the front side of the PCS (2), the air outlet of the air-cooled channel is formed on the rear side of the PCS (2), the first heat exchanger is provided on the rear side of the PCS (2), and a ventilation cavity is formed between the front side of the PCS (2) and the first cabinet door (7), so that the air on the air outlet side of the first heat exchanger can flow through the ventilation cavity to the air inlet of the air-cooled channel.

9. The energy storage cabinet according to claim 3, characterized in that, The first heat exchanger is a dry cooler (3-2), and a water receiving tray (8) is provided on the lower side of the first heat exchanger.

10. The energy storage cabinet according to claim 3, characterized in that, The heat dissipation unit (4) includes a second heat exchanger located outside the cabinet (1). The first heat exchanger and the second heat exchanger exchange heat through the flow of heat exchange fluid between the first heat exchanger and the second heat exchanger and / or through the formed mechanical compression refrigeration system.

11. The energy storage cabinet according to any one of claims 1-10, characterized in that, The cabinet (1) has a second cabinet cavity (1-2) that can be closed; an energy storage battery (9) is installed in the second cabinet cavity (1-2); the heat exchange system is used to conduct heat from the energy storage battery (9) to the outside of the cabinet (1).

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