Electricity-saving outdoor cabinet for power storage

Abstract

This invention discloses an energy-saving outdoor power storage cabinet, relating to the field of smart grid-based outdoor power storage cabinets. The cabinet body has an external cooling shroud installed on its outer side, and a pre-installed fan assembly is installed on the inner side of the cooling shroud. An upper ventilation opening is provided at the top of the cooling shroud. This energy-saving outdoor power storage cabinet features a heat transfer guiding structure. This structure dissipates the heat transferred through the supply pipes. After the heat is carried away by the coolant, the cooled gas is supplied from the bottom of the equipment to the cabinet for circulating cooling. The cooled gas enters the cabinet from the bottom and flows upwards along the surfaces of power electronic devices such as battery modules, continuously carrying away the heat generated by each heating element, eventually returning to the exhaust port at the top. The entire circulation path covers the heating area inside the cabinet to the greatest extent possible, avoiding localized heat retention caused by airflow short circuits or unidirectional flow, resulting in a more uniform temperature distribution inside the cabinet.

Description

Technical Field

[0001] This invention relates to the field of outdoor energy storage cabinet technology based on smart grids, specifically to an energy-saving outdoor power storage cabinet. Background Technology

[0002] With the deepening of smart grid construction, outdoor energy storage cabinets are transforming from single energy storage devices into comprehensive energy management nodes that integrate energy storage, intelligent dispatch, and grid support. Under the smart grid architecture, outdoor energy storage cabinets need to complete power response and charging / discharging coordination according to grid dispatch instructions. How to minimize the energy consumption of the equipment itself while ensuring rapid response to grid dispatch and power supply reliability has become an important direction for the development of outdoor energy storage cabinet technology in the context of smart grids. For example, the patent with announcement number CN120300626A describes an outdoor power storage cabinet. The bottom of the cabinet is equipped with a battery rack, and the back of the cabinet is equipped with a rear cover with a cooling fan. The rear cover contains a waterproof component that adjusts the airflow of the cooling fan. The strip baffle in the waterproof component rotates to waterproof the cabinet during the rainy season. The bottom of the rear cover is equipped with a rainwater component. The rainwater trough in the rainwater component and the waterproof component allow the strip baffle to rotate adaptively, improving the waterproof effect of the cabinet. The maintenance component enables regular inspection and maintenance of the battery pack inside the battery rack. For example, patent CN116598931B discloses an outdoor power storage cabinet, which includes a bottom cabinet shell. Both sides of the bottom cabinet shell surface are fixedly connected to adapters. The top of the bottom cabinet shell cavity is fixedly connected to a power supply component. The middle of the bottom cabinet shell cavity is slidably connected to an energy storage device. The back of the energy storage device is fixedly connected to a traction device. By rotating the solar panel, the direct sunlight receiving point is adjusted so that the solar panel can absorb sunlight to the maximum extent. The solar panel can also provide shade for the power supply component below. For example, the patent with publication number CN119890956A describes an outdoor power storage cabinet. The sealing door mechanism is used to adjust the energy storage cabinet inside the secondary cabinet and seal the secondary cabinet. The ventilation mechanism is used to dissipate heat from the inside of the secondary cabinet when the energy storage cabinet is started. The tertiary cabinet is fixedly connected to the ground, and the top of the tertiary cabinet is flush with the ground. There is a gap between the inner walls of the secondary cabinet and the tertiary cabinet. The lifting component is used to push the secondary cabinet to move vertically up and down in the tertiary cabinet. Most of the existing technologies mentioned above improve the overall structure. However, in the operation of existing outdoor power storage cabinets, the rising heat generated in the heating area inside the cabinet needs to go through a long transfer path to reach the final heat dissipation interface. During the transfer process, the heat is continuously radiated and conducted to the surrounding environment, resulting in a large amount of heat remaining on the outside of the reserved pipeline and failing to be effectively discharged. The heat transfer efficiency is significantly limited, which accelerates the aging of components in the cabinet area and also affects the stability and consistency of the entire cabinet operation, thus having certain limitations in use. Summary of the Invention

[0003] The purpose of this invention is to provide an energy-saving outdoor power storage cabinet to solve the problem mentioned in the background art that the rising heat generated in the heat-generating area inside the cabinet needs to go through a long transfer path to reach the final heat dissipation interface. During the transfer process, the heat is continuously radiated and conducted to the surrounding environment, resulting in a large amount of heat remaining on the outside of the reserved pipes and failing to be effectively discharged. The heat transfer efficiency is significantly limited, which accelerates the aging of the components in the cabinet area and also affects the stability and consistency of the overall cabinet operation.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an energy-saving outdoor power storage cabinet, comprising a power storage cabinet body, an external cooling cover installed on the outside of the power storage cabinet body, and a preset fan assembly installed on the inside of the external cooling cover; an upper ventilation port is provided at the upper end of the external cooling cover, and a lower ventilation port is provided at the lower end of the external cooling cover; a supply pipe is connected between the lower ventilation port and the upper ventilation port, and the supply pipe is interconnected with the preset fan assembly; a reserved cooling pipe is provided inside the external cooling cover, and the reserved cooling pipe is connected through the supply pipe; a heat transfer guiding structure is provided between the supply pipe and the reserved cooling pipe, and the heat transferred by the supply pipe is dissipated through the heat transfer guiding structure.

[0005] Furthermore, the heat transfer guiding structure is provided with an external docking plate, and the external docking plate is installed on the outside of the preset fan assembly. A guide rod is rotatably connected to the outside of the external docking plate.

[0006] Furthermore, a fitting piston is provided through the upper end of the reserved cooling pipe, and the lower end of the fitting piston is rotatably connected to the end of the guide rod.

[0007] Furthermore, a sealing ring is provided between the fitting piston and the reserved cooling pipe, and the fitting piston forms a transmission structure with the external docking plate through the guide rod.

[0008] Furthermore, the guide rod pushes the fitting piston to move vertically along the interior of the reserved cooling pipe, and the fitting piston is symmetrically distributed about the center point of the reserved cooling pipe.

[0009] Furthermore, a reflux supply structure is provided on the outer side of the reserved cooling pipe to guide and transfer the gas generated by condensation on the surface of the reserved cooling pipe; the reserved cooling pipe is provided with an external docking sleeve, and the external docking sleeve is installed on the outer side of the reserved cooling pipe, and a reserved through hole is opened at the lower end of the external docking sleeve; a guide fitting is fitted on the inner side of the external docking sleeve.

[0010] Furthermore, the upper end of the guide fitting component is connected to a guide steel rope assembly, which runs through the upper end of the external docking sleeve. The end of the guide steel rope assembly is connected to the lower end of the fitting piston component. An air supply pipe is provided through the outer side of the external docking sleeve, and the air supply pipe extends outward along the inside of the external cooling cover, flowing upward along the surface of power electronic devices such as battery modules, continuously carrying away the heat generated by each heating element, and finally returning to the exhaust port at the top. The entire circulation path covers the heating area inside the cabinet to the greatest extent.

[0011] Furthermore, the fitting piston component is driven by the guide steel rope assembly to form a traction structure with the guide fitting component, and the guide fitting component forms a fitting movement along the inside of the external docking sleeve.

[0012] Furthermore, after the guide fitting moves upward along the inside of the external docking sleeve to the upper end of the reserved through hole, the inside of the external docking sleeve is in a closed state, and the continuously moving guide fitting will pressurize the gas inside the external docking sleeve, thereby supplying the gas supply pipeline to the inside of the power storage cabinet body, improving the utilization rate of cooling capacity, ensuring the cooling effect of each area inside the power cabinet, effectively reducing the total power consumption of the overall heat dissipation system during operation, reducing the unit energy consumption and long-term operating cost of the thermal management system of the power storage cabinet body, and is suitable for energy storage scenarios that are sensitive to auxiliary energy consumption.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This energy-saving outdoor power storage cabinet is equipped with a heat transfer and diversion structure to dissipate the heat transferred by the supply pipe. An external cooling cover with built-in reserved cooling pipes is installed on the outside of the power storage cabinet body to form a liquid-cooled outer cover structure. The coolant in the reserved cooling pipes provides initial cooling treatment for the outside of the equipment. At the same time, a pre-installed fan assembly draws the gas that rises due to high temperature inside the power storage cabinet body to the bottom of the equipment through the supply pipe. The supply pipe runs through the middle of the reserved cooling pipe, allowing the high temperature gas to fully exchange heat with the coolant in the reserved cooling pipe as it flows through the pipe. After the heat is carried away by the coolant, the cooled gas is supplied from the bottom of the equipment to the cabinet for circulation cooling. After entering the cabinet from the bottom, the cooled gas flows upward along the surface of the battery modules and other power electronic devices, continuously carrying away the heat generated by each heat-generating element, and finally returns to the exhaust port at the top. The entire circulation path covers the heat-generating area inside the cabinet to the greatest extent, avoiding local heat retention caused by airflow short circuits or unidirectional flow, making the temperature field distribution inside the cabinet more uniform and improving the practicality of the device. Furthermore, the fan output end of the pre-set fan assembly extends outward to connect with the external docking plate, or a reserved motor assembly is installed on the outside of the pre-set fan assembly to connect with the external docking plate. During the rotation of the external docking plate, the guide rod drives the contact piston to form a vertical reciprocating motion. The contact piston circulates and pressurizes the coolant inside the reserved cooling pipe, so that the coolant flows continuously inside the reserved cooling pipe. This ensures that the coolant continuously carries away the heat of the gas in the pipe during the flow, and also keeps the surface temperature of the reserved cooling pipe wall at a low level, which is conducive to continuous heat exchange when the subsequent airflow passes through. While simplifying the structure and reducing manufacturing costs, it ensures that the reserved cooling pipe always has a stable heat exchange capacity during long-term operation and will not reduce the heat exchange efficiency due to coolant stagnation. Furthermore, a reflux supply structure is provided to guide and transfer the gas generated by condensation on the surface of the reserved cooling pipe. During the vertical movement of the fitting piston component in conjunction with the guide connecting rod, the guide connecting rod will drive the guide fitting component to move through the guide steel rope assembly, allowing the guide fitting component to form a fitting movement along the inside of the outer docking sleeve. When the guide fitting component moves upward along the inside of the outer docking sleeve to the upper end of the reserved through hole, the inside of the outer docking sleeve is in a closed state, and the continuously moving guide fitting component will pressurize the gas inside the outer docking sleeve, thereby fitting the piston. The combined gas supply pipeline supplies gas to the interior of the power storage cabinet, allowing the cold air stored between the external connecting sleeve and the reserved cooling pipe to be discharged outwards into the equipment. The low-temperature air around the reserved cooling pipe wall is actively collected and directed to the heat-generating area inside the cabinet, improving the utilization rate of cooling capacity, ensuring the cooling effect of each area inside the power cabinet, effectively reducing the total power consumption of the overall heat dissipation system during operation, and reducing the unit energy consumption and long-term operating cost of the thermal management system of the power storage cabinet. It is suitable for energy storage scenarios that are sensitive to auxiliary energy consumption, and improves the energy efficiency and power saving efficiency of the equipment throughout its entire life cycle. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional perspective view of the external cooling cover of the present invention. Figure 3 This is a schematic diagram of the three-dimensional structure of the supply pipe of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the pre-designed fan assembly of the present invention; Figure 5 For the present invention Figure 4 A magnified schematic diagram of the central part of the structure; Figure 6 This is a three-dimensional structural diagram of the gas supply pipeline of the present invention; Figure 7 This is a cross-sectional three-dimensional structural diagram of the external docking sleeve of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the external docking plate of the present invention; Figure 9 This is a three-dimensional structural diagram of the guide fitting component of the present invention.

[0015] In the diagram: 1. Power storage cabinet body; 2. External cooling cover; 3. Upper vent; 4. Supply pipe; 5. Pre-installed fan assembly; 6. Lower vent; 7. Reserved cooling pipe; 8. External docking plate; 9. Guide rod; 10. Fitting piston; 11. External docking sleeve; 12. Guide fitting component; 13. Guide steel rope assembly; 14. Air supply pipeline; 15. Reserved through hole. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Example 1: Please refer to Figures 1-9 This invention provides the following technical solution: an energy-saving outdoor power storage cabinet. To address the issue that rising heat generated in the cabinet's heating area requires a long transfer path to reach the final heat dissipation interface, and that heat is continuously radiated and conducted to the surrounding environment during transfer, resulting in a large amount of heat remaining on the outside of the reserved pipes and failing to be effectively dissipated, significantly limiting heat transfer efficiency, accelerating the aging of components in the cabinet area, and affecting the stability and consistency of the entire cabinet's operation, the invention discloses a solution including: an external cooling cover 2 installed on the outside of the power storage cabinet body 1, and a pre-set fan assembly 5 installed on the inner side of the external cooling cover 2; the external cooling cover... The upper end of the 2 is provided with an upper ventilation port 3, which is connected to the upper end of the power storage cabinet body 1. The lower end of the external cooling cover 2 is provided with a lower ventilation port 6, which is connected to the lower end of the power storage cabinet body 1. A supply pipe 4 is connected between the lower ventilation port 6 and the upper ventilation port 3, and the supply pipe 4 is connected to the preset fan assembly 5. A reserved cooling pipe 7 is provided inside the external cooling cover 2, and the reserved cooling pipe 7 is connected to the supply pipe 4. A heat transfer guiding structure is provided between the supply pipe 4 and the reserved cooling pipe 7 to dissipate the heat transferred by the supply pipe 4.

[0018] The heat transfer guiding structure is equipped with an external docking plate 8, which is installed on the outside of the preset fan assembly 5. A guide rod 9 is rotatably connected to the outside of the external docking plate 8. A fitting piston 10 is installed through the upper end of the reserved cooling pipe 7, and the lower end of the fitting piston 10 is rotatably connected to the end of the guide rod 9. A sealing ring is provided between the fitting piston 10 and the reserved cooling pipe 7. The fitting piston 10 forms a transmission structure with the external docking plate 8 through the guide rod 9. The guide rod 9 pushes the fitting piston 10 to move vertically along the inside of the reserved cooling pipe 7, and the fitting piston 10 is symmetrically distributed about the center point of the reserved cooling pipe 7. An external cooling cover 2 with a built-in reserved cooling pipe 7 is installed on the outside of the power storage cabinet body 1, forming a liquid-cooled outer cover structure. The reserved cooling pipe 7 is pre-filled with coolant. The outside of the reserved cooling pipe 7 is connected to a radiator set on the outside of the external cooling cover 2 or the power storage cabinet body 1, forming a closed loop. When the piston 10 reciprocates along the inside of the reserved cooling pipe 7, it drives the coolant to circulate between the reserved cooling pipe 7 and the external radiator. When the coolant flows through the reserved cooling pipe 7, it absorbs the heat from the gas supplied to the pipe 4. When it flows through the external radiator, it dissipates the heat to the external environment, thereby realizing the circulation and heat dissipation of the coolant. The pre-set fan assembly 5 cools the power storage cabinet body. The high-temperature gas inside body 1 is drawn to the bottom of the equipment through supply pipe 4. Supply pipe 4 runs through the middle of the reserved cooling pipe 7, allowing the high-temperature gas to fully exchange heat with the coolant in the reserved cooling pipe 7 as it flows through the pipe. After the heat is carried away by the coolant, the cooled gas is supplied from the bottom of the equipment to the cabinet for circulating cooling. After entering the cabinet from the bottom, the cooled gas flows upward along the surface of power electronic devices such as battery modules, continuously carrying away the heat generated by each heat-generating element, and finally returns to the exhaust port at the top. The entire circulation path covers the heat-generating area inside the cabinet to the greatest extent, avoiding local heat retention caused by airflow short circuits or unidirectional flow, and keeping the temperature inside the cabinet stable. The field distribution is more uniform. The fan output end in the preset fan assembly 5 extends outward to connect with the external docking plate 8, or a reserved motor assembly is installed on the outside of the preset fan assembly 5 to connect with the external docking plate 8. During the rotation of the external docking plate 8, the guide rod 9 drives the contact piston 10 to form a vertical reciprocating motion. The contact piston 10 circulates and pressurizes the coolant inside the reserved cooling pipe 7, so that the coolant flows continuously inside the reserved cooling pipe 7. This ensures that the coolant continuously carries away the heat of the gas in the pipe during the flow process, and also keeps the wall of the reserved cooling pipe 7 at a low surface temperature, which is conducive to continuous heat exchange when the subsequent airflow passes through.

[0019] Example 2: Based on Example 1, a reflux supply structure is also disclosed, the specific structure of which is as follows: A reflux supply structure is provided on the outside of the reserved cooling pipe 7, which guides and transfers the gas generated by condensation on the surface of the reserved cooling pipe 7. The reserved cooling pipe 7 is equipped with an external docking sleeve 11, which is installed on the outside of the reserved cooling pipe 7. The lower end of the external docking sleeve 11 has a reserved through hole 15. A guide fitting member 12 is fitted to the inner side of the external docking sleeve 11. A guide steel rope assembly 13 is connected to the upper end of the guide fitting member 12. The guide steel rope assembly 13 passes through the upper end of the external docking sleeve 11, and the end of the guide steel rope assembly 13 is connected to the lower end of the fitting piston member 10. An air supply pipe 14 is installed through the outer side of the external docking sleeve 11 and extends outward along the inside of the external cooling cover 2. During the vertical movement of the fitting piston member 10 in conjunction with the guide connecting rod 9, the guide connecting rod 9 will drive the guide fitting member 12 to move through the guide steel rope assembly 13, so that the guide fitting member 12... 2. A fitting action is formed along the inside of the external docking sleeve 11. When the guide fitting member 12 moves upward along the inside of the external docking sleeve 11 to the upper end of the reserved through hole 15, the inside of the external docking sleeve 11 is in a closed state. The continuously moving guide fitting member 12 will pressurize the gas inside the external docking sleeve 11, thereby supplying the gas supply pipeline 14 to the inside of the power storage cabinet body 1. This allows the cold air stored between the external docking sleeve 11 and the reserved cooling pipe 7 to be discharged outward into the equipment. The low-temperature air around the wall of the reserved cooling pipe 7 is actively collected and directed to the heat-generating area inside the cabinet, improving the utilization rate of cold energy, ensuring the cooling effect of each area inside the power cabinet, effectively reducing the total power consumption of the overall heat dissipation system during operation, and reducing the unit energy consumption and long-term operating cost of the outdoor energy storage cabinet thermal management system.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An energy-saving outdoor power storage cabinet, comprising a power storage cabinet body (1), wherein an external cooling cover (2) is installed on the outside of the power storage cabinet body (1), and a preset fan assembly (5) is installed on the inside of the external cooling cover (2). characterized in that The upper end of the external cooling cover (2) is provided with an upper vent (3), and the lower end of the external cooling cover (2) is provided with a lower vent (6). A supply pipe (4) is connected between the lower vent (6) and the upper vent (3), and the supply pipe (4) is connected to the preset fan assembly (5). A reserved cooling pipe (7) is provided inside the external cooling cover (2), and the reserved cooling pipe (7) is connected to the supply pipe (4). A heat transfer guiding structure is provided between the supply pipe (4) and the reserved cooling pipe (7), and the heat transferred by the supply pipe (4) is dissipated through the heat transfer guiding structure.

2. The power saving type outdoor cabinet for power storage according to claim 1, characterized in that: The heat transfer guiding structure is provided with an external docking plate (8), and the external docking plate (8) is installed on the outside of the preset fan assembly (5). The external docking plate (8) is rotatably connected to a guide rod (9).

3. The power saving outdoor cabinet of claim 2, wherein: The upper end of the reserved cooling pipe (7) is provided with a fitting piston (10), and the lower end of the fitting piston (10) is rotatably connected to the end of the guide rod (9).

4. The power saving outdoor cabinet of claim 3, wherein: A sealing ring is provided between the fitting piston (10) and the reserved cooling pipe (7), and the fitting piston (10) forms a transmission structure with the external docking plate (8) through the guide rod (9).

5. The power saving outdoor cabinet of claim 4, wherein: The guide rod (9) pushes the fitting piston (10) to form a vertical movement along the interior of the reserved cooling pipe (7), and the fitting piston (10) is symmetrically distributed about the center point of the reserved cooling pipe (7).

6. The power saving outdoor cabinet of claim 5, wherein: A reflux supply structure is provided on the outside of the reserved cooling pipe (7), and the gas generated by condensation on the surface of the reserved cooling pipe (7) is guided and transferred through the reflux supply structure. The reserved cooling pipe (7) is provided with an external docking sleeve (11), and the external docking sleeve (11) is installed on the outside of the reserved cooling pipe (7). A reserved through hole (15) is opened at the lower end of the external docking sleeve (11), and a guide fitting (12) is attached to the inner side of the external docking sleeve (11).

7. The power saving outdoor cabinet of claim 6, wherein: The upper end of the guide fitting component (12) is connected to the guide steel rope assembly (13), and the guide steel rope assembly (13) passes through the upper end of the external docking sleeve (11), and the end of the guide steel rope assembly (13) is connected to the lower end of the fitting piston component (10). An air supply pipe (14) is provided through the outer side of the external docking sleeve (11), and the air supply pipe (14) extends outward along the inside of the external cooling cover (2).

8. The power saving outdoor cabinet of claim 7, wherein: The fitting piston (10) drives the guide fitting component (12) to form a traction structure through the guide steel rope assembly (13), and the guide fitting component (12) forms a fitting activity along the inside of the external docking sleeve (11).

9. The power saving outdoor cabinet of claim 8, wherein: After the guide fitting (12) moves upward along the inside of the external docking sleeve (11) to the upper end of the reserved through hole (15), the inside of the external docking sleeve (11) is in a closed state, and the continuously moving guide fitting (12) will pressurize the gas inside the external docking sleeve (11), thereby supplying the gas supply pipeline (14) to the inside of the power storage cabinet body (1).

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