A maintenance tool for batteries in an energy storage cabinet

Abstract

This invention relates to a maintenance fixture for batteries in an energy storage cabinet, comprising an energy storage cabinet body, a fixed crossbeam fixedly connected to the top of the cabinet body, a lifting ring fixedly mounted on the fixed crossbeam, a supporting and stabilizing frame fixedly connected to the upper surface of the fixed crossbeam, an extended lifting frame fixedly connected to one end of the supporting and stabilizing frame, a slot provided in the extended lifting frame, track pulleys at both ends of the slot, a plate trolley within the slot, and a hand-operated hoist below the plate trolley; by installing the lifting structure on the top of the energy storage cabinet, it can be applied to energy storage cabinets of different heights, and the installation of the lifting structure in the upward space can save floor space and facilitate storage; utilizing the flow wheel structure in the maintenance trolley, the sliding friction of pushing the battery pack into the cabinet can be converted into rolling friction, reducing resistance and making it easier to install into the cabinet, saving manpower.

Description

Technical Field

[0001] This invention relates to the field of energy storage battery technology, and in particular to a maintenance tool for energy storage cabinet batteries. Background Technology

[0002] With the increasing number of installed energy storage systems, many aging battery packs are facing replacement needs. Since batteries themselves weigh hundreds of kilograms, this presents a significant challenge to product maintenance. Currently, replacing battery packs from energy storage cabinets is an industry-wide problem. Traditional maintenance methods involve using forklifts to transport battery packs, followed by manual handling. However, the battery packs at the top of the energy storage system cabinet are often 2.2 meters high and weigh up to 350 kilograms, making manual handling inefficient and posing significant safety risks. Furthermore, commercially available maintenance fixtures are integrated units, characterized by their large weight; manual handling would be labor-intensive and difficult. Therefore, there is an urgent need for a fixture capable of enabling battery pack maintenance.

[0003] For example, CN118723777A discloses a PACK hoisting fixture and method for an energy storage cabinet, including: a movable support, a lifting hoist, a stabilizing frame, and a load-bearing frame. During installation, the lifting hoist simultaneously lifts the stabilizing frame, the load-bearing frame, and the battery PACK or battery module. Then, the movable support is used to smoothly transition and splice the battery PACK or battery module to the corresponding installation position. This invention, through the cooperation of various components, allows for the safe, reliable, time-saving, and labor-saving installation of the battery PACK or battery module into the energy storage cabinet even when space or ground conditions prevent the use of a lifting vehicle. This reduces the impact of space and environmental factors on the energy storage cabinet. The installation process has provided more installation devices and methods for battery packs or battery modules, giving more options for installation methods in different environments and locations. Although it solves the problem of safely, reliably, and time-savingly installing battery modules into energy storage cabinets when space is limited or ground conditions prevent the use of lifting vehicles, it requires external large mobile supports. These large mobile supports are not easy to store, and they cannot be used for battery cabinets that exceed the height of the mobile supports, thus limiting their applicability. Furthermore, installing the battery pack into the energy storage cabinet requires pushing, which involves high sliding friction and is difficult to push.

[0004] In practical applications, if the ground is uneven, it is difficult to move the external mobile frame and align it with the battery box, and the manpower required for moving and pushing it is high. Therefore, those skilled in the art have proposed a maintenance fixture for batteries in energy storage cabinets to solve the problems of large mobile supports being inconvenient to store, having limited applicability, and having difficulty pushing the battery pack due to high sliding friction. Summary of the Invention

[0005] In view of the above-mentioned problems existing in the prior art, the main objective of the present invention is to provide a maintenance tool for batteries in energy storage cabinets.

[0006] The technical solution of the present invention is as follows: a maintenance fixture for energy storage cabinet batteries, comprising an energy storage cabinet body, a fixed crossbeam fixedly connected to the top of the energy storage cabinet body, a lifting ring fixedly provided on the fixed crossbeam, a support and stabilizing frame fixedly connected to the upper surface of the fixed crossbeam, an extension lifting frame fixedly connected to one end of the support and stabilizing frame, a slot provided in the extension lifting frame, track pulleys provided at both ends of the slot, a plate trolley provided in the slot, a hand chain hoist provided below the plate trolley, a wire rope lock fixedly connected to the round hole of the plate trolley, and the wire rope lock passing through the track pulley; The hand-operated hoist lifting and maintenance trolley; The maintenance trolley is fixedly connected to the energy storage cabinet at a fixed height.

[0007] In a preferred embodiment, the energy storage cabinet is provided with an installation bracket inside, and the installation bracket is provided with a fixing nut on the battery pack mounting surface. The maintenance trolley is connected to the fixing nut via an external threaded optical shaft when the height is fixed.

[0008] In a preferred embodiment, the maintenance vehicle includes a frame platform with casters on its lower surface and smooth wheel structures fixedly connected to both sides inside the frame platform. A screw mechanism is provided on the lower surface of the frame platform, and a push plate baffle is fixedly connected to the output end of the screw mechanism. A battery mounting base is provided on the front end of the frame platform, and a square corner is fixedly provided on the bottom rear end of the frame platform. Hoisting brackets are evenly and symmetrically arranged around the frame platform, and lifting lugs are provided on the hoisting brackets.

[0009] In a preferred embodiment, the flow wheel structure includes a fixed side, and a plurality of fixed rods are provided between the fixed side and the side of the nearest frame platform. A plurality of flow wheels are rotatably connected to the fixed rods, and spacers are provided between the flow wheels.

[0010] In a preferred embodiment, the square corner is provided with an external threaded optical axis connection hole, and the side of the square corner facing the front end of the frame platform is provided with a slot.

[0011] In a preferred embodiment, a guide rod is provided below the push plate baffle, both ends of which are fixedly connected to a frame platform. The push plate baffle is movably connected to the guide rod, and a hook is provided on the side of the push plate baffle.

[0012] Compared with existing technologies, the advantages and positive effects of this invention are as follows: by installing the hoisting structure on the top of the energy storage cabinet, it can be applied to energy storage cabinets of different heights. Furthermore, installing the hoisting structure in the upward space saves floor space and facilitates storage. The modular bracket design allows operators to quickly assemble individual components on-site, avoiding the difficulty of moving the heavy overall structure to the top of the cabinet by on-site personnel. It also reduces the requirement for a flat and hardened ground surface, expanding the application scenarios for operation and maintenance. Utilizing the fluid wheel structure in the maintenance trolley, the sliding friction of pushing the battery pack into the cabinet can be converted into rolling friction, reducing resistance and making it easier to install into the cabinet, saving manpower. Attached Figure Description

[0013] Figure 1 This invention provides an overall structural schematic diagram of a maintenance fixture for batteries in an energy storage cabinet. Figure 2 This invention provides a schematic diagram of the structure of a hand-operated hoist used in the maintenance of batteries in an energy storage cabinet. Figure 3 This invention provides a schematic diagram of a maintenance trolley for maintenance tools used in energy storage cabinet batteries.

[0014] Legend: 1. Energy storage cabinet; 2. Fixed beam; 3. Lifting ring; 4. Supporting and stabilizing frame; 5. Extending lifting frame; 6. Track pulley; 7. Plate trolley; 8. Steel wire rope lock; 9. Hand chain hoist; 10. Maintenance trolley; 101. Frame platform; 102. Flow wheel structure; 103. Screw mechanism; 104. Push plate baffle; 105. Battery mounting bracket; 106. Square corner; 107. Lifting bracket; 108. Lifting lug. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0016] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Example A maintenance fixture for batteries in an energy storage cabinet includes an energy storage cabinet 1. A fixed crossbeam 2 is fixedly connected to the top of the energy storage cabinet 1. A lifting ring 3 is fixedly installed on the fixed crossbeam 2. A support and stabilizing frame 4 is fixedly connected to the upper surface of the fixed crossbeam 2. An extension lifting frame 5 is fixedly connected to one end of the support and stabilizing frame 4. The extension lifting frame 5 extends beyond the footprint of the energy storage cabinet 1 to meet the length required for lifting the battery pack. The extension lifting frame 5 has a slot, and rail pulleys 6 are provided at both ends of the slot. A plate trolley 7 is provided in the slot. A hand chain hoist 9 is provided below the plate trolley 7. A wire rope lock 8 is fixedly connected to the round hole of the plate trolley 7. The wire rope lock 8 passes through the rail pulley 6. The hoisting structure consists of a fixed crossbeam 2, lifting ring 3, supporting and stabilizing frame 4, extending hoisting frame 5, track pulley 6, plate trolley 7, wire rope lock 8, and hand chain hoist 9. The entire hoisting structure is located on top of the energy storage cabinet 1, which facilitates the later modification of the energy storage cabinet 1 at different heights and is low in cost. Before modification, the energy storage cabinet 1 is fixed to the ground. The weight of the energy storage cabinet 1 and the battery pack installed inside, as well as the fixation of the energy storage cabinet 1 to the ground, provide sufficient counterweight. This can effectively prevent the energy storage cabinet 1 from shaking during hoisting. The manual chain hoist 9 is used to lift and maintain the trolley 10. The manual chain hoist 9 is used for adjustment, which is convenient and labor-saving for lifting. At the same time, the manual chain hoist 9 also has a self-locking function, which makes it easy to hover at any height. The maintenance vehicle 10 is fixedly connected to the energy storage cabinet 1 at a certain height. After the maintenance vehicle 10 reaches the required fixed height, the maintenance vehicle 10 is fixedly connected to the energy storage cabinet 1 to ensure that the maintenance vehicle 10 remains stable at high altitude.

[0019] The energy storage cabinet 1 is equipped with an installation bracket inside. The installation bracket has a fixing nut on the battery pack mounting surface. The maintenance trolley 10 is connected to the fixing nut through an external threaded optical shaft when the height is determined. The maintenance trolley 10 and the energy storage cabinet 1 are fixed by the external threaded optical shaft and the fixing nut, which can ensure a stable connection.

[0020] The maintenance vehicle 10 includes a frame platform 101. The lower surface of the frame platform 101 is provided with casters. The two sides of the frame platform 101 are fixedly connected to the smooth wheel structure 102. The lower surface of the frame platform 101 is provided with a screw mechanism 103. The screw mechanism 103 is existing technology and will not be described. The output end of the screw mechanism 103 is fixedly connected to a push plate baffle 104. The front end of the frame platform 101 is provided with a battery mounting base 105. The rear bottom surface of the frame platform 101 is fixedly provided with a square corner 106. The frame platform 101 is evenly and symmetrically provided with lifting brackets 107 around its perimeter. The lifting brackets 107 are provided with lifting lugs 108. The battery pack is secured by pressing the edge of the battery mounting bracket 105. The lifting lug 108 serves as the lifting point, and a steel wire rope is used for fixed connection. The steel wire rope is then connected to the hand-operated hoist 9 to fix the lifting position. In the initial state of the battery pack being placed in the maintenance trolley 10, the push plate baffle 104 is located below the battery pack. The main function of the push plate baffle 104 is to remove the old battery pack from the energy storage cabinet 1. The square corner 106 is a structure that connects to the external threaded optical shaft. After the external threaded optical shaft passes through the square corner 106, it connects to the mounting bracket inside the energy storage cabinet 1 and is then fixed using a fixing nut.

[0021] The Flow Wheel Structure 102 includes a fixed side, and a number of fixed rods are provided between the fixed side and the side of the nearest frame platform 101. A number of Flow Wheels are rotatably connected to the fixed rods, and partitions are provided between the Flow Wheels. The top of the Flow Wheels contacts the battery pack. In this way, when the battery pack enters and exits the energy storage cabinet 1, the multiple Flow Wheels roll, changing sliding friction into rolling friction, reducing friction and saving manpower.

[0022] The square corner 106 is provided with an external thread optical shaft connection hole. The side of the square corner 106 facing the front end of the frame platform 101 is provided with a slot. Since the external thread optical shaft is to be installed later, it is necessary to reserve installation space. The slot can be used to ensure that the external thread optical shaft has installation space.

[0023] A guide rod is provided below the push plate baffle 104. Both ends of the guide rod are fixedly connected to the frame platform 101. The push plate baffle 104 is movably connected to the guide rod. A hook is provided on the side of the push plate baffle 104. When it is necessary to remove the old battery inside the energy storage cabinet 1, the old battery is connected by a steel wire rope. The other end of the steel wire rope is fixedly connected to the hook. The push plate baffle 104 is moved by the screw mechanism 103 to pull the old battery out of the energy storage cabinet 1.

[0024] Working principle: As shown in the figure, when using the battery pack, first install it on the frame platform 101 and use a safety rope to protect it. After that, use a wire rope to fix the lifting lug 108 and then connect the wire rope to the hand chain hoist 9. Then, the maintenance personnel manually pull the hand chain hoist 9 to raise the height of the maintenance trolley 10. After raising it to the required installation height, and after the external thread optical shaft connection hole on the square corner 106 corresponds to the through hole of the mounting bracket of the energy storage cabinet 1, pass the external thread optical shaft through the external thread optical shaft connection hole and connect it to the mounting bracket. Lock it with a fixing nut. After that, manually push the new battery pack. When pushing, the battery pack and the flow wheel structure 102 generate rolling friction, making it easier and less strenuous for the battery pack to enter the energy storage cabinet 1. When the old battery inside the energy storage cabinet 1 needs to be replaced, the old battery is connected by a steel wire rope, and the other end of the steel wire rope is fixedly connected to a hook. The push plate baffle 104 is moved by the screw mechanism 103 to pull the old battery out of the energy storage cabinet 1.

[0025] Finally, it should be noted that the above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A maintenance fixture for batteries in an energy storage cabinet, comprising an energy storage cabinet body (1), characterized in that: The top of the energy storage cabinet (1) is fixedly connected to a fixed crossbeam (2), and a lifting ring (3) is fixedly provided on the fixed crossbeam (2). A support and stabilizing frame (4) is fixedly connected to the upper surface of the fixed crossbeam (2). An extension hoisting frame (5) is fixedly connected to one end of the support and stabilizing frame (4). A slot is provided in the extension hoisting frame (5). A track pulley (6) is provided at both ends of the slot. A plate trolley (7) is provided in the slot. A hand chain hoist (9) is provided below the plate trolley (7). A wire rope lock (8) is fixedly connected to the round hole of the plate trolley (7). The wire rope lock (8) passes through the track pulley (6). The hand chain hoist (9) is used to lift and maintain the trolley (10). The maintenance vehicle (10) is fixedly connected to the energy storage cabinet (1) under a fixed height.

2. The maintenance fixture for energy storage cabinet batteries according to claim 1, characterized in that: The energy storage cabinet (1) is equipped with an installation bracket inside. The installation bracket has a fixing nut on the battery pack mounting surface. The maintenance trolley (10) is connected to the fixing nut through an external thread optical shaft when the height is determined.

3. The maintenance fixture for energy storage cabinet batteries according to claim 1, characterized in that: The maintenance vehicle (10) includes a frame platform (101), the lower surface of the frame platform (101) is provided with casters, the two sides of the frame platform (101) are fixedly connected with a smooth wheel structure (102), the lower surface of the frame platform (101) is provided with a screw mechanism (103), the output end of the screw mechanism (103) is fixedly connected with a push plate baffle (104), the front end of the frame platform (101) is provided with a battery mounting seat (105), the rear end bottom surface of the frame platform (101) is fixedly provided with a square corner (106), the frame platform (101) is evenly and symmetrically provided with a hoisting bracket (107) around its perimeter, and the hoisting bracket (107) is provided with a lifting lug (108).

4. The maintenance fixture for energy storage cabinet batteries according to claim 3, characterized in that: The Flow Wheel Structure (102) includes a fixed side, and a plurality of fixed rods are provided between the fixed side and the side of the nearest frame platform (101). A plurality of Flow Wheels are rotatably connected to the fixed rods, and spacers are provided between the Flow Wheels.

5. The maintenance fixture for energy storage cabinet batteries according to claim 3, characterized in that: The square corner (106) is provided with an external thread optical axis connection hole, and the side of the square corner (106) facing the front end of the frame platform (101) is provided with a slot.

6. The maintenance fixture for energy storage cabinet batteries according to claim 3, characterized in that: The push plate baffle (104) is provided with a guide rod below it. Both ends of the guide rod are fixedly connected to the frame platform (101). The push plate baffle (104) is movably connected to the guide rod. The side of the push plate baffle (104) is provided with a hook.

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