Energy storage and voltage boosting converter integrated machine

Abstract

This invention discloses an integrated energy storage booster converter, comprising a prefabricated compartment, which includes a top cover, a body, and a base. The body is mounted on the base, and the top cover is located on top of the body. The body contains a transformer compartment, a low-voltage compartment, and a high-voltage compartment. The base has a PCS side located on one side of the body. The body has an air inlet communicating with the transformer compartment. The top cover has multiple cooling fans located above the transformer compartment, and the air inlets of the cooling fans are connected to the transformer compartment. This invention has the advantages of good heat dissipation, compact layout, and low cost.

Description

Technical Field

[0001] This invention relates to the field of power equipment technology, and in particular to an integrated energy storage boost converter. Background Technology

[0002] The integrated energy storage booster converter, as a key component on the AC side of an energy storage substation system, mainly consists of a prefabricated cabin, a step-up transformer, a high-voltage side integrated frame, a low-voltage side integrated frame, and an energy storage converter (hereinafter referred to as PCS). Currently, the integrated solution for 35kV energy storage booster converters used in large-scale energy storage substations includes... Figure 1 As shown, the layout is divided into four units: PCS converter terminal, transformer room, high voltage room, and low voltage room. The PCS converter terminal is an outdoor structure, while the transformer room, high voltage room, and low voltage room are prefabricated cabin structures, separated by sealing plates to meet the five electrical protection requirements.

[0003] The integrated solution has the following drawbacks: 1) The transformer room's air-cooled flow field adopts a design with air intake on one side and air exhaust on the other. A certain number of fans installed on the prefabricated cabin wall dissipate heat from the entire transformer room, resulting in low heat dissipation efficiency. This leads to a large calculated area for the air inlet and outlet, and a larger size for the prefabricated transformer room, consequently increasing the amount of steel structure materials used in the prefabricated cabin and the amount of busbars and cables used for electrical connections, resulting in higher material costs. 2) The high-voltage side integrated frame is welded to the prefabricated cabin as a single unit, involving numerous welding processes and complex techniques. This easily leads to the accumulation of errors, causing the through-hole positioning dimensions for assembly to exceed tolerances, and making rectification extremely difficult. Furthermore, the high-voltage side integrated frame has limited space for hoisting and integration operations, and since the frame structure is welded to the prefabricated cabin as a whole, the high-voltage side integrated assembly process cannot be completed independently. This results in low overall integration and assembly efficiency of the integrated machine and high manufacturing costs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an integrated energy storage boost converter with good heat dissipation, compact layout and low cost.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: An integrated energy storage boost converter includes a prefabricated compartment, which comprises a top cover, a body, and a base. The body is mounted on the base, and the top cover is located on top of the body. The body contains a transformer compartment, a low-voltage compartment, and a high-voltage compartment. The base has a PCS side located on one side of the body. The body has an air inlet communicating with the transformer compartment. The top cover has multiple cooling fans located above the transformer compartment, and the air inlets of the cooling fans are communicating with the transformer compartment.

[0006] As a further improvement to the above technical solution: The transformer room houses the transformer, and the cooling fans are arranged in a straight line along the arrangement direction of each core of the transformer.

[0007] The cooling fan is located directly above the transformer core.

[0008] The top cover is provided with a fan mounting bracket for installing a cooling fan. The bottom of the fan mounting bracket is provided with a flared opening that communicates with the transformer room, and the air inlet of the cooling fan is located in the flared opening.

[0009] The top cover includes an outer frame, a lower sealing plate, and an upper sealing plate. The outer frame is installed on the top of the cabin, the lower sealing plate is located on the bottom surface of the outer frame, the upper sealing plate is located on the top surface of the outer frame, the fan is mounted on the upper sealing plate, and the outer frame is filled with fireproof rock wool.

[0010] The upper sealing plate is also provided with a fan protective cover, the fan is installed in the fan protective cover, and the top of the fan protective cover is provided with an openable and closable outer cover.

[0011] The energy storage boost converter also includes a high-voltage side cabinet integrated structure, which is detachably installed in the high-voltage room.

[0012] The cabin includes a frame beam and a frame sealing plate disposed on the side of the frame beam. A bottom plate is provided on the base. An L-shaped inner sealing plate is provided inside the cabin. The low-pressure chamber is formed by the inner side of the L-shaped inner sealing plate, the frame sealing plate, the bottom plate and the top cover. The chamber is also equipped with a top mounting plate. The outer side of the L-shaped inner mounting plate, the frame mounting plate, the bottom plate, the top cover 11 and the top mounting plate enclose the high-voltage chamber, which is open to the side facing the transformer chamber.

[0013] The cabin is also equipped with a side mounting plate. The side mounting plate, top mounting plate, frame plate, bottom plate and top cover enclose a reserved space. The frame plate is equipped with a high-pressure chamber door that communicates with the reserved space.

[0014] The high-voltage side cabinet integrated structure is detachably connected to the side mounting plate, the top mounting plate, and the bottom plate.

[0015] Compared with the prior art, the advantages of the present invention are as follows: 1. The energy storage boost converter integrated unit of the present invention uses a certain number of cooling fans installed on the top cover and adopts a side-intake and top-out air cooling flow field to centrally dissipate heat from the transformer, which has a good heat dissipation effect. While ensuring that the temperature rise of the transformer room and the temperature rise of the transformer body meet the requirements, it does not occupy the space of the transformer room in the cabin, reducing the size of the transformer room, thereby reducing the overall size of the integrated unit. The internal layout structure is more compact, which in turn reduces the amount of steel structure material used in the cabin and the amount of busbars and cables used for electrical connections, resulting in lower costs.

[0016] 2. The energy storage boost converter of the present invention, since the heat of the transformer mainly comes from the iron core and the coils on the iron core, arranges the cooling fans in a straight line along the arrangement direction of each iron core of the transformer, which can specifically draw and dissipate heat from the heat source area, resulting in higher heat dissipation efficiency and avoiding energy waste and space occupation caused by ineffective heat dissipation.

[0017] 3. In the energy storage boost converter of the present invention, the cooling fan is located directly above the transformer core, which can directly draw in the hot air accumulated above the core. The heat exchange path is shorter and the heat dissipation effect is better. The number of cooling fans can be reduced while meeting the heat dissipation requirements, thereby further reducing costs.

[0018] 4. The energy storage booster converter integrated unit of the present invention integrates circuit breakers, surge arresters, and current transformers, which were originally installed separately in the high-voltage room, into a modular high-voltage side cabinet integrated structure. The high-voltage side cabinet integrated structure is detachably installed as a whole, separating the high-voltage side frame structure from the cabin structure. This saves welding time, reduces welding process difficulty, and improves the prefabrication cabin delivery efficiency. To a certain extent, it avoids rework caused by serious deviations in high-voltage side assembly dimensions. The high-voltage side cabinet integrated structure can complete the assembly process independently outside the cabin, effectively avoiding problems such as low overall integration efficiency due to limited integration work space and inability to integrate independently. This improves the integration efficiency of the integrated unit and reduces labor costs. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of an existing integrated energy storage boost converter.

[0020] Figure 2 This is a front view of the energy storage boost converter integrated machine of the present invention.

[0021] Figure 3 This is a top view of the energy storage boost converter integrated machine of the present invention.

[0022] Figure 4 This is a top view of the energy storage boost converter integrated machine of the present invention (top cover not shown).

[0023] Figure 5This is a front view of the top cover of the integrated energy storage boost converter of the present invention.

[0024] Figure 6 This is a top view of the cabin of the integrated energy storage boost converter of the present invention.

[0025] Figure 7 This is a top view of the cabin of the integrated energy storage boost converter of the present invention.

[0026] The labels in the diagram represent: 1. Prefabricated cabin; 10. High-voltage chamber; 101. Reserved space; 102. High-voltage chamber door; 11. Top cover; 111. Outer frame; 112. Lower sealing plate; 113. Upper sealing plate; 114. Reinforcing rib; 115. Water barrier; 116. Guardrail; 117. Fan mounting bracket; 118. Fan protective cover; 1181. Outer cover; 119. Safety rope lug; 12. Cabin; 121. Cable tray flange; 122. Frame beam; 123. Frame sealing plate; 124. Side mounting sealing plate; 125. Top mounting sealing plate; 126. Ladder; 127. L-shaped inner sealing plate; 128. Auxiliary transformer protective cover; 13. Base; 131. Integrated 132. Main load-bearing channel steel for the main unit; 133. Main load-bearing channel steel for the PCS; 134. Lifting column; 135. Main load-bearing channel steel for the transformer; 136. Process hole sealing plate; 137. Main load-bearing channel steel for the auxiliary transformer; 138. Main load-bearing channel steel for the communication power cabinet; 139. Low-voltage side inlet / outlet hole for the integrated unit; 140. Inlet / outlet hole for the high-voltage side of the integrated unit; 141. Mounting hole; 142. Base plate; 143. DC side inlet / outlet hole for the PCS; 144. Manhole; 15. Load-bearing channel steel; 16. Cooling fan; 17. PCS; 18. Transformer; 19. High-voltage side cabinet integrated structure; 20. Auxiliary transformer; 20. Communication power cabinet; 21. PCS side; 22. Transformer room; 33. Low-voltage room. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this invention, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] like Figures 2 to 7 As shown, the energy storage boost converter integrated unit of this embodiment includes a prefabricated compartment 1. The prefabricated compartment 1 includes a top cover 11, a compartment body 12 and a base 13. The compartment body 12 is located on the base 13, and the top cover 11 is located on the top of the compartment body 12. The compartment body 12 is provided with a transformer chamber 8, a low-voltage chamber 9 and a high-voltage chamber 10. The base 13 is provided with a PCS side 7 located on one side of the compartment body 12. The compartment body 12 is provided with an air inlet communicating with the transformer chamber 8. The top cover 11 is provided with a plurality of cooling fans 15 located above the transformer chamber 8. The air inlets of the cooling fans 15 are connected to the transformer chamber 8.

[0032] The energy storage boost converter integrated unit in this embodiment uses a number of cooling fans 15 installed on the top cover 11 and adopts a side-intake and top-out air cooling flow field to centrally dissipate heat from the transformer 3. The heat dissipation effect is good. While ensuring that the temperature rise of the transformer chamber 8 and the temperature rise of the transformer 3 body meet the requirements, it does not occupy the space of the transformer chamber 8 in the cabin 12, reducing the size of the transformer chamber 8, thereby reducing the overall size of the integrated unit. The internal layout structure is more compact, which in turn reduces the amount of steel structure material used in the cabin 12 and the amount of busbars and cables used for electrical connections, resulting in lower costs.

[0033] Furthermore, in this embodiment, a transformer 3 is installed in the transformer room 8, and each cooling fan 15 is arranged in a straight line along the arrangement direction of each iron core of the transformer 3. Since the heat of the transformer 3 mainly comes from the iron core and the coils on the iron core, arranging the cooling fans 15 in a straight line along the arrangement direction of each iron core of the transformer 3 can specifically draw heat from the heat source area, resulting in higher heat dissipation efficiency and avoiding energy waste and space occupation caused by ineffective heat dissipation.

[0034] Furthermore, in this embodiment, the cooling fan 15 is located directly above the iron core of the transformer 3, which can directly draw in the hot air gathered above the iron core. The heat exchange path is shorter and the heat dissipation effect is better. The number of cooling fans 15 can be reduced while meeting the heat dissipation requirements, thereby further reducing costs.

[0035] Furthermore, in this embodiment, the top cover 11 is provided with a fan mounting bracket 117 for mounting the cooling fan 15. The bottom of the fan mounting bracket 117 is provided with a flared opening that communicates with the transformer chamber 8, and the air inlet of the cooling fan 15 is located in the flared opening. The flared opening can expand the air intake and suction range, and at the same time guide the hot air to gather upwards, avoiding the hot air from stagnating at the top of the transformer chamber 8, further improving the efficiency of hot air exhaust and enhancing the heat dissipation effect.

[0036] Furthermore, in this embodiment, the top cover 11 includes an outer frame 111, a lower sealing plate 112, and an upper sealing plate 113. The outer frame 111 is installed on the top of the cabin 12, the lower sealing plate 112 is located on the bottom surface of the outer frame 111, and the upper sealing plate 113 is located on the top surface of the outer frame 111. The fan mounting bracket 117 is located on the upper sealing plate 113, and the outer frame 111 is filled with fireproof rock wool. Filling with fireproof rock wool can not only improve the heat insulation and fireproof performance of the top cover 11, but also reduce the impact of the external ambient temperature of the cabin 12 on the internal temperature, and reduce additional heat dissipation load.

[0037] Furthermore, in this embodiment, the upper sealing plate 113 is also provided with a fan protective cover 118, the fan mounting bracket 117 is disposed in the fan protective cover 118, and the top of the fan protective cover 118 is provided with an openable outer cover 1181. The fan protective cover 118 can protect the cooling fan and prevent external debris from entering. By opening the outer cover 1181, the cooling fan 15 can be directly inspected and maintained without opening the compartment 12, making the operation more convenient.

[0038] Furthermore, in this embodiment, the front and rear of the fan mounting bracket 117 (i.e., the arrangement direction of each cooling fan 15) Figure 4 The top and bottom surfaces are closed, while the left and right sides (i.e., the directions perpendicular to the arrangement of each cooling fan 15) are closed. Figure 4 The fan mounting bracket 117 has open sides (left and right directions) and is equipped with a guide shroud. Hot air flows out from the guide shroud in the open space on both sides of the fan mounting bracket 117, preventing exhaust interference between the cooling fans 15. The exhaust path is smooth and the heat dissipation and exhaust efficiency is high.

[0039] Furthermore, in this embodiment, the top cover 11 also includes reinforcing ribs 114, water-blocking strips 115, guardrails 116, and safety rope hooks 119. The top cover 11 is an integral welded structure, with 50mm thick Class A fireproof rock wool filling the frame 111, lower sealing plate 112, and upper sealing plate 113; the guardrail 116 is welded together from d12 specification round steel, and then welded to the outer frame 111 of the top cover 11; the fan installation integrated structure 117 is welded together with the waterproof folded edge of the upper sealing plate 113 and the waterproof folded edge of the lower sealing plate 112 respectively; the fan protective cover structure 118 is welded to the upper sealing plate 113 as a whole, and the outer cover 1181 is fastened by bolts and opened and closed by a certain number of hinges. After opening and closing, the outer cover 1181 is fixed by windproof hooks on both sides, which facilitates the maintenance of the internal fan.

[0040] Furthermore, in this embodiment, the integrated energy storage booster converter also includes a high-voltage side cabinet integrated structure 4, which is detachably installed inside the high-voltage chamber 10. By integrating the circuit breaker switches, surge arresters, and current transformers, which were originally installed separately in the high-voltage chamber 10, into the modular high-voltage side cabinet integrated structure 4, and by detachably installing the high-voltage side cabinet integrated structure 4 as a whole, the high-voltage side frame structure is separated from the cabin 12 structure. This saves welding time, reduces welding process difficulty, and improves the delivery efficiency of the prefabricated cabin 1. To a certain extent, it avoids rework caused by serious deviations in high-voltage side assembly dimensions. The high-voltage side cabinet integrated structure 4 can independently complete the assembly process outside the cabin 12, effectively avoiding problems such as low overall integration efficiency of the integrated machine due to limited integration work space and the inability to integrate independently, thereby improving the integration efficiency of the integrated machine and reducing labor costs.

[0041] Furthermore, in this embodiment, PCS2 is installed on PCS side 7, and auxiliary transformer 5 and communication power cabinet 6 are installed in low-voltage chamber 9. Busbar cavity bridge structure 14 is provided on the side of cabin 12 near PCS side 7. High-voltage AC power is connected to the incoming busbar on the high-voltage side cabinet integrated structure 4 through external cable. The outgoing side is connected to the high-voltage side busbar of transformer 3 through cable. The low-voltage side busbar of transformer 3 is connected to the AC side outgoing busbar of PCS2 through flexible busbar and rigid busbar via busbar cavity bridge structure 14. Then, PCS2 provides DC outgoing electrical interface.

[0042] Furthermore, in this embodiment, the cabin 12 includes a frame beam 122 and a frame sealing plate 123 disposed on the side of the frame beam 122. A base plate 141 is disposed on the base 13. An L-shaped inner sealing plate 127 is disposed inside the cabin 12. The inner side of the L-shaped inner sealing plate 127, the frame sealing plate 123, the base plate 141, and the top cover 11 enclose and form a low-pressure chamber 9. A top mounting sealing plate 125 is also disposed inside the cabin 12. The outer side of the L-shaped inner sealing plate 127, the frame sealing plate 123, the base plate 141, the top cover 11, and the top mounting sealing plate 125 enclose and form a high-pressure chamber 10. The high-pressure chamber 10 is open to the transformer chamber 8. Since the high-pressure side cabinet integrated structure 4 is a modular and detachable structure, an independent high-pressure chamber 10 is formed by enclosing multiple sealing plates. The high-pressure chamber 10 does not require welding of partitions or other structures, making the structure simple and easy to assemble. At the same time, the design of being open to the transformer chamber 8 facilitates the electrical connection between the high-pressure side cabinet integrated structure 4 and the transformer 3, resulting in a more compact layout.

[0043] Furthermore, in this embodiment, the cabin 12 is also equipped with a side mounting plate 124. The side mounting plate 124, the top mounting plate 125, the frame plate 123, the bottom plate 141, and the top cover 11 enclose a reserved space 101. The frame plate 123 is equipped with a high-voltage chamber door 102 that communicates with the reserved space 101. The top mounting plate 125 isolates the high-voltage side integrated operation panel of the high-voltage side cabinet integrated structure 4 from the internal components (i.e., the high-voltage side integrated operation panel is separated into the reserved space 101 by the top mounting plate 125), meeting the electrical five-proof requirements. Personnel can enter the reserved space 101 through the high-voltage chamber door 102 to complete wiring, inspection, and maintenance operations. The operating space is sufficient and entry and exit are convenient.

[0044] Furthermore, in this embodiment, the high-voltage side cabinet integrated structure 4 is detachably connected to the side mounting plate 124, the top mounting plate 125, and the bottom plate 141, respectively. Preferably, the high-voltage side cabinet integrated structure 4 is detachably connected to the side mounting plate 124, the top mounting plate 125, and the bottom plate 141 by bolts. After the high-voltage side cabinet integrated structure 4 is hoisted into the high-voltage chamber 10, the installation can be completed simply by locking the high-voltage side cabinet integrated structure 4 to each mounting plate with bolts. The assembly operation is simple and efficient, eliminating the need for welding operations inside the chamber and facilitating subsequent overall inspection and replacement of the high-voltage side cabinet integrated structure.

[0045] Furthermore, in this embodiment, the cabin 12 also includes a cable tray flange 121, a ladder 126, an L-shaped inner sealing plate 127, an auxiliary transformer protective cover 128, and a cooling fan outer cover. The cable tray flange 121 is a welded component, integrally welded to the skeleton sealing plate 123 of the cabin 12, and bolted to the busbar cavity cable tray structure 14, leaving a certain assembly gap, which is sealed by applying adhesive. The side mounting sealing plate 124 and the top mounting sealing plate 125 are bolted together, and both are also bolted to the skeleton beam 122 of the cabin 12. The high-voltage side cabinet integrated structure 4 is hoisted into the prefabricated cabin 1, and then bolted to the side mounting sealing plate 124, the top mounting sealing plate 125, and the base plate 141 of the base 13. The ladder 126 is welded from L-shaped cold-formed plates and square cold-formed hollow steel sections, and then welded as a whole to the frame sealing plate 123 and base 13 of the cabin 12. The L-shaped inner sealing plate 127 is welded from two cold-rolled steel plates, and then welded as a whole to the frame beam 122 to separate the low-voltage chamber 9 from the transformer chamber 8 and the high-voltage chamber 10.

[0046] Furthermore, in this embodiment, the base 13 is composed of the main load-bearing channel steel 131 of the integrated machine, the main load-bearing channel steel 132 of the PCS, the lifting column 133, the main load-bearing channel steel 134 of the transformer, the process hole sealing plate 135 for installing the transformer, the main load-bearing channel steel 136 of the auxiliary transformer, the main load-bearing channel steel 137 of the communication power cabinet, the low-voltage side inlet / outlet hole 138 of the integrated machine, the high-voltage side inlet / outlet hole 139 of the integrated machine, the mounting hole 140 for installing the high-voltage side cabinet integrated structure 4, the base plate 141, the DC side inlet / outlet hole 142 of the PCS, the manhole 143 and its cover plate, and the remaining load-bearing channel steel 144, etc. The load-bearing channel steels are welded together to form the base frame. The manhole 143 facilitates the workers to enter under the base to complete the inlet / outlet wiring work. Each inlet / outlet hole corresponds to the wiring requirements of different functional units. The layout is neat and convenient for wiring.

[0047] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the spirit and technical essence of the present invention. Therefore, any simple modifications, equivalent substitutions, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall still fall within the protection scope of the technical solutions of the present invention.

Claims

1. An integrated energy storage boost converter, characterized in that: The prefabricated compartment (1) includes a top cover (11), a compartment (12) and a base (13). The compartment (12) is located on the base (13), and the top cover (11) is located on the top of the compartment (12). The compartment (12) contains a transformer chamber (8), a low-voltage chamber (9) and a high-voltage chamber (10). The base (13) has a PCS side (7) located on one side of the compartment (12). The compartment (12) has an air inlet that communicates with the transformer chamber (8). The top cover (11) has multiple cooling fans (15) located above the transformer chamber (8). The air inlets of the cooling fans (15) communicate with the transformer chamber (8).

2. The integrated energy storage boost converter as described in claim 1, characterized in that: The transformer room (8) is equipped with a transformer (3), and each of the cooling fans (15) is arranged in a straight line along the arrangement direction of each iron core of the transformer (3).

3. The integrated energy storage boost converter according to claim 2, characterized in that: The cooling fan (15) is located directly above the core of the transformer (3).

4. The integrated energy storage boost converter according to claim 1, characterized in that: The top cover (11) is provided with a fan mounting bracket (117) for installing a cooling fan (15). The bottom of the fan mounting bracket (117) is provided with a flared opening that communicates with the transformer room (8). The air inlet of the cooling fan (15) is located in the flared opening.

5. The integrated energy storage boost converter according to claim 4, characterized in that: The top cover (11) includes an outer frame (111), a lower sealing plate (112) and an upper sealing plate (113). The outer frame (111) is installed on the top of the cabin (12). The lower sealing plate (112) is located on the bottom surface of the outer frame (111). The upper sealing plate (113) is located on the top surface of the outer frame (111). The fan mounting bracket (117) is located on the upper sealing plate (113). The outer frame (111) is filled with fireproof rock wool.

6. The integrated energy storage boost converter according to claim 4, characterized in that: The upper sealing plate (113) is also provided with a fan protective cover (118), the fan mounting bracket (117) is located in the fan protective cover (118), and the top of the fan protective cover (118) is provided with an openable outer cover (1181).

7. The integrated energy storage boost converter according to any one of claims 1 to 6, characterized in that: The energy storage boost converter also includes a high-voltage side cabinet integrated structure (4), which is detachably installed in the high-voltage chamber (10).

8. The integrated energy storage boost converter according to claim 7, characterized in that: The cabin (12) includes a frame beam (122) and a frame sealing plate (123) provided on the side of the frame beam (122). A bottom plate (141) is provided on the base (13). An L-shaped inner sealing plate (127) is provided inside the cabin (12). The low-pressure chamber (9) is formed by the inner side of the L-shaped inner sealing plate (127), the frame sealing plate (123), the bottom plate (141) and the top cover (11). The cabin (12) is also provided with a top mounting plate (125). The outer side of the L-shaped inner plate (127), the skeleton plate (123), the bottom plate (141), the top cover (11) and the top mounting plate (125) enclose the high-voltage chamber (10), which is open to the side facing the transformer chamber (8).

9. The integrated energy storage boost converter according to claim 8, characterized in that: The cabin (12) is also provided with a side mounting plate (124). The side mounting plate (124), the top mounting plate (125), the frame plate (123), the bottom plate (141) and the top cover (11) enclose a reserved space (101). The frame plate (123) is provided with a high-pressure chamber door (102) that communicates with the reserved space (101).

10. The integrated energy storage boost converter according to claim 9, characterized in that: The high-voltage side cabinet integrated structure (4) is detachably connected to the side mounting plate (124), the top mounting plate (125), and the bottom plate (141).

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