An energy storage device

Abstract

The application provides an energy storage device, and relates to the technical field of energy storage device structures. The energy storage device comprises an energy storage cabinet body, a guide element, at least two oppositely arranged guide rails and a first limiting element, the guide rails are arranged in the energy storage cabinet body, the two guide rails are used for corresponding to the opposite sides of the same battery pack respectively, the guide rails are used for providing guidance for the movement of the battery pack on the energy storage cabinet body, and the first limiting element is arranged at the end of the guide rail; and a wear-resistant element is arranged on the guide rail, the wear-resistant element is used for contacting the battery pack, and the end of the wear-resistant element abuts against the first limiting element. In this way, the friction and wear between the battery pack and the guide element are reduced, and the stability and reliability of the pulling operation of the battery pack are improved.

Description

Technical Field

[0001] This application relates to the field of energy storage equipment structure technology, and in particular to an energy storage device. Background Technology

[0002] In an energy storage liquid cooler, the battery pack is used to store and release electrical energy. To stably store this enormous amount of energy, the battery pack employs a multi-layered physical protection and thermal management architecture, resulting in its significant weight. The energy storage liquid cooler utilizes a pull-out design to enable rapid installation, replacement, and maintenance of the battery pack.

[0003] The battery pack pull-out installation structure includes guide rails and support plates. The guide rails are set on the inner walls of both sides of the liquid cooler and have a sliding coating. The support plates slide with the guide rails, and the battery pack is set on the support plates. The guide rails guide the movement of the support plates.

[0004] However, the heavy weight of the battery pack can cause the coating to be damaged or even wear down the battery pack or the guide rail due to the sliding friction between the support plate and the guide rail. Utility Model Content

[0005] This application provides an energy storage device to solve the problem that the heavy weight of the battery pack and the sliding friction between the support plate and the guide rail can cause coating damage or even wear on the battery pack or guide rail.

[0006] On one hand, this application provides an energy storage device, comprising:

[0007] Energy storage cabinet;

[0008] The guide includes at least two oppositely arranged guide rails and a first limiting member. The guide rails are arranged inside the energy storage cabinet. The two guide rails are respectively used to correspond to opposite sides of the same battery pack. The guide rails are used to provide guidance for the movement of the battery pack on the energy storage cabinet. The first limiting member is arranged at the end of the guide rail.

[0009] The wear-resistant component is mounted on the guide rail and is used to contact the battery pack. The end of the wear-resistant component abuts against the first limiting component. A second limiting component is provided on the guide rail and abuts against the side of the wear-resistant component. The first and second limiting components work together to restrict the wear-resistant component to a preset installation position on the guide rail. The wear-resistant component includes multiple wear-resistant strips, which are sequentially spliced ​​along the length of the guide rail. Each wear-resistant strip is detachably connected to the guide rail.

[0010] In one possible implementation, this application provides an energy storage device, which further includes multiple battery packs, and the guide members are arranged in multiple layers along the height direction of the energy storage cabinet.

[0011] In one possible implementation, this application provides an energy storage device, which further includes a connector. A first connecting portion is provided on the guide rail, and a second connecting portion is provided on the wear-resistant component. When the wear-resistant component is in a preset installation position on the guide rail, the first connecting portion corresponds to the second connecting portion, and the connector connects the wear-resistant component and the guide rail via the first connecting portion and the second connecting portion.

[0012] In one possible implementation, this application provides an energy storage device. The guide rail includes a support portion and a limiting portion connected to the support portion. A first limiting member is disposed at the end of the support portion, a wear-resistant member is located on the side of the support portion facing the limiting portion, the limiting portion is located on the side of the support portion, and a second limiting member is located on the limiting portion.

[0013] In one possible implementation, this application provides an energy storage device. The first limiting member includes a first abutting part and a second abutting part connected to the first abutting part. The first abutting part is a flange disposed at the end of the support part. The second abutting part is inclined toward the wear-resistant part. The end of the wear-resistant part and the end of the battery pack both abut against the first abutting part.

[0014] And / or, the support part, the limiting part and the first limiting member are integrally bent into shape.

[0015] In one possible implementation, this application provides an energy storage device, wherein the second limiting member is a stamped protrusion disposed on the limiting portion.

[0016] In one possible implementation, this application provides an energy storage device, wherein the stamped protrusion has a first guide surface, an abutment surface and a second guide surface arranged in sequence, the abutment surface abuts against the side of the wear-resistant part, and the first guide surface and the second guide surface are respectively used to guide the battery pack into and out of the energy storage cabinet.

[0017] In one possible implementation, this application provides an energy storage device, wherein the wear-resistant part is a low-resistance wear-resistant strip.

[0018] In one possible implementation, this application provides an energy storage device, the battery pack including a battery pack body and an extension disposed on the battery pack body, a portion of the extension contacting a wear-resistant component.

[0019] An energy storage device provided in this application includes: an energy storage cabinet; a guide member, the guide member including at least two oppositely arranged guide rails and a first limiting member, the guide rails being disposed within the energy storage cabinet, the two guide rails being used to correspond to opposite sides of the same battery pack respectively, the guide rails being used to guide the movement of the battery pack on the energy storage cabinet, the first limiting member being disposed at the end of the guide rail; and a wear-resistant member, the wear-resistant member being disposed on the guide rail, the wear-resistant member being used to contact the battery pack, the end of the wear-resistant member abutting against the first limiting member.

[0020] By incorporating guide components within the energy storage cabinet to guide the movement of the battery pack, the guide components include at least two opposing guide rails with wear-resistant parts on the rails for contact with the battery pack. This achieves both movement guidance and contact protection during the battery pack's installation and operation. A first limiting component at the end of the guide rail restricts the axial displacement of the wear-resistant parts and the battery pack, preventing them from slipping off the guide rails. This reduces frictional wear between the battery pack and the guide components, improving the stability and reliability of the battery pack's operation. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0022] Figure 1 This is a schematic diagram of the structure of an energy storage device provided in an embodiment of this application.

[0023] Figure 2 for Figure 1 A schematic diagram of the structure of A in the middle.

[0024] Figure 3 for Figure 2 A schematic diagram of the structure from another direction.

[0025] Figure 4 for Figure 3 A schematic diagram of the structure of B in the middle.

[0026] Figure 5 for Figure 1 Diagram showing the usage status of guide components and wear-resistant components.

[0027] Figure 6 for Figure 1 A schematic diagram of the middle guide rail.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100 - Energy storage cabinet; 200 - Guide component; 210 - Guide rail; 211 - Second limiting component; 2111 - Stamped protrusion; 21111 - First guiding surface; 21112 - Abutting surface; 21113 - Second guiding surface; 212 - First connecting part; 213 - Support part; 214 - Limiting part; 220 - First limiting component; 221 - First abutting part; 222 - Second abutting part; 300 - Wear-resistant part; 310 - Second connecting part; 320 - Low-resistance wear-resistant strip; 400 - Connector; 10 - Battery pack; 11 - Battery pack body; 12 - Extension.

[0030] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0031] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0032] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] In the embodiments of this application, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this application according to the specific circumstances.

[0034] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0035] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in a sequence other than those illustrated or described herein.

[0036] In this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0037] Unless otherwise stated, the term "multiple" means two or more.

[0038] In an energy storage liquid cooler, the battery pack is used to store and release electrical energy. To stably store this enormous amount of energy, the battery pack employs a multi-layered physical protection and thermal management architecture, resulting in its significant weight. The energy storage liquid cooler utilizes a pull-out design to enable rapid installation, replacement, and maintenance of the battery pack.

[0039] The pull-out battery pack mounting structure includes guide rails and a support plate. The guide rails are located on the inner walls of both sides of the liquid cooler and have a sliding coating. The support plate slides in conjunction with the guide rails, and the battery pack is mounted on the support plate. The guide rails guide the movement of the support plate. However, the battery pack is heavy, and the sliding friction between the support plate and the guide rails can cause damage to the coating or even wear on the surface of the battery pack or guide rails.

[0040] This application provides an energy storage device, comprising: an energy storage cabinet; a guide member, including at least two opposing guide rails and a first limiting member, the guide rails being disposed within the energy storage cabinet, the two guide rails corresponding to opposite sides of the same battery pack, the guide rails providing guidance for the movement of the battery pack on the energy storage cabinet, and the first limiting member being disposed at the end of the guide rail; and a wear-resistant member disposed on the guide rail, the wear-resistant member contacting the battery pack, the end of the wear-resistant member abutting against the first limiting member. By providing a guide member within the energy storage cabinet for guiding the movement of the battery pack, the guide member including at least two opposing guide rails, and the wear-resistant member on the guide rails for contacting the battery pack, simultaneous movement guidance and contact protection are achieved during the battery pack's installation and operation. By providing a first limiting member at the end of the guide rail, the axial displacement of the wear-resistant member and the battery pack is limited, thereby preventing the wear-resistant member and the battery pack from sliding off the guide rail. This reduces frictional wear between the battery pack and the guide member, improving the stability and reliability of the battery pack's operation.

[0041] The embodiments of this application are described below with reference to the accompanying drawings.

[0042] Reference Figures 1 to 4 As shown, in some embodiments, this embodiment includes: an energy storage cabinet 100; a guide 200, the guide 200 including at least two oppositely arranged guide rails 210 and a first limiting member 220, the guide rails 210 being disposed within the energy storage cabinet 100, the two guide rails 210 being used to correspond to opposite sides of the same battery pack 10 respectively, the guide rails 210 being used to guide the movement of the battery pack 10 on the energy storage cabinet 100, the first limiting member 220 being disposed at the end of the guide rails 210; a wear-resistant component 300, the wear-resistant component 300 being disposed on the guide rails 210, the wear-resistant component 300 being used to contact the battery pack 10, the end of the wear-resistant component 300 abutting against the first limiting member 220; the wear-resistant component 300 including multiple wear-resistant strips, the multiple wear-resistant strips being sequentially spliced ​​along the length direction of the guide rails 210, each wear-resistant strip being detachably connected to the guide rails 210.

[0043] The energy storage cabinet 100 is a box-type main structure used to form the installation space of the battery pack 10 and to provide load-bearing support for the internal components. The energy storage cabinet 100 is used to enclose the internal installation cavity and define the assembly boundary of the battery pack 10.

[0044] In one possible embodiment, the energy storage cabinet 100 can be a steel plate welded cabinet, an aluminum profile frame cabinet, or a sheet metal assembled cabinet. Alternatively, a combined shell structure with sufficient rigidity and deformation resistance can be selected according to the installation scenario. The shape of the energy storage cabinet 100 is usually a cuboid or near-cuboid structure, and the interior of the energy storage cabinet 100 can be provided with an installation space or installation area for installing the battery pack 10.

[0045] The guide member 200 is a guide component installed inside the energy storage cabinet 100 to limit the movement path of the battery pack 10 and bear the guiding load of the battery pack 10. The guide member 200 is used to constrain the direction of movement during the insertion or removal of the battery pack 10. The guide member 200 is fixedly connected to the energy storage cabinet 100 and is disposed on the inner walls on both sides of the energy storage cabinet 100, forming a sliding contact or close-range guiding relationship with the mating surface of the battery pack 10, so that the battery pack 10 moves along the guide member 200.

[0046] The guide rail 210 can be made of metal, profile, or bent material. The wear-resistant part 300 can be made of composite strips or self-lubricating material strips, which are low-friction materials. The guide rail 210 can also be made of polytetrafluoroethylene, polyoxymethylene, nylon, or polymer materials containing lubricating fillers to balance wear resistance, low coefficient of friction, and certain load-bearing capacity. The cross-section of the guide rail 210 body can be L-shaped, U-shaped, or groove-shaped. The wear-resistant part 300 can be correspondingly set on the inner edge, upper surface, or lateral contact surface of the guide rail 210. The guide rail 210 and the first limiting part 220 can be integrally formed using the same metal material.

[0047] The first limiting member 220 can be integrally formed with the guide rail 210, for example, by stamping and bending a steel plate, or by using an aluminum alloy extruded profile with local processing. Alternatively, it can be made of stainless steel welded parts, riveted parts, or locally added high-strength plastic limiting blocks to adapt to different load requirements and manufacturing processes. The first limiting member 220 and the end of the wear-resistant part 300 are usually set to fit or slightly interfere with each other. The length of the contact surface can be determined according to the length of the wear-resistant part 300 to ensure reliable stopping.

[0048] The wear-resistant component 300 forms a wear-resistant contact interface when the battery pack 10 slides relative to the guide rail 210, thereby reducing wear between the guide rail 210 and the battery pack 10. The wear-resistant component 300 is typically fixed to the force-bearing contact surface of the guide rail 210 and forms a replaceable contact layer between the guide rail 210 and the battery pack 10. Thus, while the main body of the guide component 200 remains stable, the wear-resistant component 300 bears the main sliding friction. The wear-resistant component 300 includes multiple wear-resistant strips, which are sequentially spliced ​​along the length of the guide rail 210, and each wear-resistant strip is detachably connected to the guide rail 210.

[0049] In one possible embodiment, the contact width of the wear-resistant component 300 is typically matched with the width of the corresponding contact surface of the battery pack 10, and the thickness of the wear-resistant component 300 needs to meet the effective contact requirements after long-term wear and tear, and make the wear-resistant component 300 form a stable contact surface.

[0050] The energy storage device provided in this application allows the battery pack 10 to move along the direction of the guide rail 210 within the installation space defined by the energy storage cabinet 100 when the battery pack 10 enters the energy storage cabinet 100. At the same time, the wear-resistant part 300 disposed on the guide rail 210 contacts the battery pack 10 and bears the local friction load on the relative sliding interface. Under the guidance of the guide rail 210, the battery pack 10 enters and exits the energy storage cabinet 100 along the surface of the wear-resistant part 300. The main body of the guide rail 210 achieves both load bearing and guidance through the transition contact between the wear-resistant part 300 and the battery pack 10.

[0051] Since the wear-resistant component 300 is directly arranged on the contact part of the guide rail 210, and the shape of the wear-resistant component 300 is adapted to the contact surface of the battery pack 10, the battery pack 10 does not need to rely on an unstable bare metal surface to slide directly during movement. This makes the friction state at the contact interface of the battery pack 10 controllable. The contact position between the guide rail 210 and the battery pack 10 remains consistent, so that the movement guidance, contact support and wear-resistant transition of the battery pack 10 can be realized simultaneously within the energy storage cabinet 100. The installation reference of the guide rail 210 is consistent with the wear-resistant contact interface, thereby improving the operational stability of the battery pack 10 during loading and unloading and the assembly consistency of the internal components of the cabinet. When the wear-resistant component 300 is assembled onto the guide rail 210, the end of the wear-resistant component 300 abuts against the first limiting component 220, thereby limiting the axial displacement of the wear-resistant component 300. At the same time, during the movement of the battery pack 10, the end of the battery pack 10 is also axially blocked by contacting the first limiting component 220, thereby limiting the axial movement of the battery pack 10 relative to the guide rail 210.

[0052] Reference Figures 1 to 4 As shown, in some embodiments, this embodiment includes: multiple battery packs 10, and multiple layers of guide members 200 arranged along the height direction of the energy storage cabinet 100. In one possible embodiment, each layer of guide member 200 is provided with two guide rails 210, and the spacing between the two guide rails 210 in the same layer matches the width of the battery pack 10; the thickness of the wear-resistant part 300 can be set according to the load-bearing and wear requirements, the length of the wear-resistant part 300 can cover the main contact stroke of the battery pack 10, and the layer spacing of the guide rails 210 in the height direction can be determined according to the height of the battery pack 10, the heat dissipation gap, and the wiring space, so that multiple battery packs 10 can be arranged in layers in the cabinet without interfering with each other.

[0053] In another possible embodiment, each layer is provided with multiple guide rails 210 to place multiple battery packs 10 side by side on the same layer. A mounting plate is provided between each two adjacent battery packs 10, and guide rails 210 are provided on both sides of the mounting plate corresponding to the positions of the battery packs 10 to support and guide each battery pack 10 to be pulled out independently.

[0054] After multiple battery packs 10 are arranged in layers along the height direction within the energy storage cabinet 100, when any battery pack 10 needs to be assembled, inspected, or replaced, the two guide rails 210 corresponding to the battery pack 10 provide synchronous guidance to the opposite sides of the battery pack 10. During the pushing or pulling process, the wear-resistant parts 300 on both sides contact the guide rails 210 and move along a predetermined straight trajectory, thereby maintaining a balanced force state on the battery pack 10 and reducing swaying and tilting caused by unilateral force. The multi-layer guides 200 separate different battery packs 10 in the vertical direction, which is beneficial for making full use of the internal space of the energy storage cabinet 100 and also facilitates reserving necessary cooling channels and maintenance gaps for each layer of battery packs 10. The internal space of the energy storage cabinet 100 is divided by the mounting plate, and multiple guide rails 210 are set accordingly to place multiple battery packs 10 side by side on each layer, thereby reducing the gaps inside the energy storage cabinet 100 and making the cabinet structure compact.

[0055] Since each layer is supported by at least two guide rails 210 corresponding to both sides of the battery pack 10, the battery pack 10 can obtain anti-eccentric load capacity during movement. At the same time, by setting the first limiting member 220 at the end of the guide rail 210, the axial displacement of the battery pack 10 relative to the guide rail 210 is limited to prevent the battery pack 10 from sliding out of the guide rail 210. The wear-resistant part 300 undertakes the contact buffer and friction reduction function during repeated sliding, so as to maintain the guiding accuracy and smoothness of pulling, thereby reducing the difficulty of assembly alignment, reducing the number of repeated adjustments, and suppressing the jamming caused by local wear accumulation.

[0056] Reference Figures 4 to 6 As shown, in some embodiments, this embodiment includes: a second limiting member 211 is provided on the guide rail 210, the second limiting member 211 abuts against the side of the wear-resistant member 300, and the first limiting member 220 and the second limiting member 211 are used together to restrict the wear-resistant member 300 to a preset installation position on the guide rail 210 where the wear-resistant member 300 is installed.

[0057] The second limiting member 211 can be integrally formed with the guide rail 210 using the same metal material. The gap between the second limiting member 211 and the side of the wear-resistant part 300 is controlled within a range that provides guidance but does not cause significant assembly interference, thereby improving positioning accuracy while ensuring smooth assembly.

[0058] When the wear-resistant part 300 is assembled onto the guide rail 210, it is pushed into the installation area along the direction of the guide rail 210. As the wear-resistant part 300 gradually approaches the preset installation position, its end first contacts the first limiting member 220 and is axially blocked. Simultaneously, its side contacts the second limiting member 211 and is laterally constrained. The position of the wear-resistant part 300 on the guide rail 210 is stably locked within the preset installation position, avoiding axial offset and lateral deviation caused by relying on manual visual alignment. Since the first limiting member 220 provides an end stop reference and the second limiting member 211 provides a lateral alignment reference, the wear-resistant part 300 can maintain an accurate posture before fastening. When subsequently fixed by screws, riveting, or other fastening methods, it is not easy for its position to drift due to force. Therefore, it can reduce repeated adjustments and rework, and improve the assembly consistency between the wear-resistant part 300 and the guide rail 210.

[0059] When the battery pack 10 is pulled along the guide 200 and comes into contact with the wear-resistant part 300, the wear-resistant part 300 is in a stable preset installation position, which can keep the force surface of the battery pack 10 on the guide rail 210 consistent, reduce local contact stress and wear concentration, thereby reducing the pulling resistance, improving the smoothness of operation, and improving the reliability and maintenance convenience in long-term use.

[0060] Reference Figures 5 to 6 As shown, in some embodiments, this embodiment includes: a connector 400, a first connecting portion 212 on the guide rail 210, and a second connecting portion 310 on the wear-resistant component 300. When the wear-resistant component 300 is in a preset installation position on the guide rail 210, the first connecting portion 212 corresponds to the second connecting portion 310, and the connector 400 connects the wear-resistant component 300 and the guide rail 210 via the first connecting portion 212 and the second connecting portion 310.

[0061] The connector 400 is a mechanical connection element used to form a detachable or semi-permanent fixed relationship between the guide rail 210 and the wear-resistant part 300. The function of the connector 400 is to reliably lock the wear-resistant part 300 and the guide rail 210 after the wear-resistant part 300 is limited to a preset installation position on the guide rail 210, thereby preventing the wear-resistant part 300 from shifting, warping, or falling off due to vibration, repeated impact, or frictional loads during the pulling and pulling of the battery pack 10. The first connecting part 212 and the second connecting part 310 are respectively located in the corresponding mating areas of the guide rail 210 and the wear-resistant part 300, and achieve alignment when the wear-resistant part 300 moves along the guide rail 210 to the preset installation position, thus providing an assembly reference for the insertion, engagement, or locking of the connector 400.

[0062] The first connecting part 212 and the second connecting part 310 can be through holes, countersunk holes, threaded holes, slots, insertion holes or snap-fit ​​notches, respectively, and the connecting part 400 can be screws, bolts, rivets, pins, elastic buckles, locking pins or quick-release fasteners.

[0063] In one possible embodiment, the connector 400 passes through the first connecting portion 212 on the guide rail 210 and enters the second connecting portion 310 on the wear-resistant part 300. The connection is achieved through thread tightening, riveting, or elastic fastening, forming axial limiting and radial constraint after installation. The first connecting portion 212 and the second connecting portion 310 can be formed by stamping, drilling, machining, laser processing, or injection molding. When the guide rail 210 is a metal profile, the first connecting portion 212 is preferably processed by punching or tapping. When the wear-resistant part 300 is a polymer material or composite material, the second connecting portion 310 can be obtained by in-mold forming, post-processing opening, or insert pre-embedding. The connector 400 can be made of stainless steel, carbon steel, aluminum alloy, or high-strength engineering plastic. The first connecting portion 212 and the second connecting portion 310 can be round holes, oblong holes, square holes, stepped holes, or through-hole structures with chamfers to adapt to different assembly processes and stress patterns.

[0064] In another possible embodiment, the connector 400 may also be designed as a pin with a limiting shoulder or a self-locking fastener to improve resistance to loosening and simplify assembly. The diameters of the holes of the first connecting portion 212 and the second connecting portion 310 are generally matched with the outer diameter of the connector 400 to facilitate clearance fit during insertion, or a slight interference fit can be used when enhanced positioning accuracy is required; the effective length of the connector 400 should be sufficient to pass through the connection thickness between the guide rail 210 and the wear-resistant part 300 and retain locking allowance; the hole spacing, edge distance, and distance between the second connecting portion 310 on the wear-resistant part 300 and the first connecting portion 212 on the guide rail 210 and the stress edge of the wear-resistant part 300 should ensure smooth alignment during assembly and prevent cracking or deformation after long-term loading.

[0065] By utilizing the correspondence between the first connecting part 212 and the second connecting part 310 at a preset installation position, the connector 400 is inserted and fixed, ensuring that the wear-resistant part 300 is reliably mechanically locked after completing its positioning. This maintains the stable installation of the wear-resistant part 300 during repeated pulling and pulling of the battery pack 10 within the energy storage cabinet 100, reducing loosening caused by assembly deviations or operational vibrations. Consequently, it improves the fit consistency, assembly reliability, and long-term operational stability of the guide part 200 and the wear-resistant part 300. It should be understood that the above example is merely illustrative and not limiting.

[0066] Reference Figures 4 to 6As shown, in some embodiments, this embodiment includes: the guide rail 210 includes a support portion 213 and a limiting portion 214 connected to the support portion 213, a first limiting member 220 is disposed at the end of the support portion 213, a wear-resistant member 300 is located on the side of the support portion 213 facing the limiting portion 214, the limiting portion 214 is located on the side of the support portion 213, and a second limiting member 211 is located on the limiting portion 214.

[0067] In one possible embodiment, the support portion 213 is a basic component in the guide rail 210 for supporting the wear-resistant component 300 and providing sliding support for the battery pack 10. The support portion 213 typically constitutes the main force-bearing plane of the guide rail 210. The limiting portion 214 is a lateral constraint member connected to the support portion 213, and the limiting portion 214 is used to form a boundary restriction in the lateral direction of the guide rail 210. The first limiting member 220 is used to position the end of the wear-resistant component 300 in the end direction, and the second limiting member 211 is used to position the side of the wear-resistant component 300 in the side direction, so that the preset installation position of the wear-resistant component 300 on the guide rail 210 remains stable, avoiding axial movement or lateral displacement during assembly and subsequent operation.

[0068] The support part 213 and the limiting part 214 can be integrally bent, stamped or welded to form an integral guide rail 210. The wear-resistant part 300 is disposed on the side of the support part 213 facing the limiting part 214 and fits in close contact. After the limiting part 214 is located on the side of the support part 213, the second limiting part 211 is disposed on the limiting part 214 and extends toward the wear-resistant part 300 to form a bidirectional limiting structure that cooperates with the first limiting part 220.

[0069] The support portion 213 and the limiting portion 214 can be made of steel plate, aluminum alloy plate, or stainless steel profile, and can also be galvanized, sprayed, anodized, or coated with a wear-resistant coating to improve corrosion resistance and service life. The width of the support portion 213 should generally be greater than the installation width of the wear-resistant part 300, with sufficient assembly allowance. The height of the limiting portion 214 is generally less than the width of the support portion 213 but sufficient to form an effective side stop. The distance between the first limiting member 220 and the second limiting member 211 can be set according to the external dimensions of the wear-resistant part 300 to a positioning gap or press-fit relationship adapted to the end face and side face of the support portion 213, for example, with an assembly allowance of 0.1mm to 1mm. The thickness of the limiting portion 214 can be set according to the load-bearing requirements of the guide rail 210 to balance rigidity and ease of processing. It should be understood that the above examples are for illustrative purposes only and are not limiting.

[0070] When the battery pack 10 is pulled out or pushed in along the guide 200 inside the energy storage cabinet 100, the battery pack 10 slides into contact with the wear-resistant part 300 disposed on the guide rail 210. The support part 213 first bears the vertical load from the wear-resistant part 300 and transmits it to the main structure of the guide rail 210. The limiting part 214 forms a constraint on the wear-resistant part 300 in the side so that the wear-resistant part 300 is not easy to move to the side when subjected to assembly fastening force or friction force. At the same time, the first limiting part 220 stops the end of the wear-resistant part 300, and the second limiting part 211 abuts against the side of the wear-resistant part 300. The first limiting part 220 and the second limiting part 211 together restrict the wear-resistant part 300 within the preset installation position.

[0071] Since the wear-resistant part 300 is always positioned on the side of the support part 213 facing the limiting part 214 and is subject to both lateral and end-oriented constraints, a relatively stable contact interface can be maintained between the wear-resistant part 300 and the battery pack 10 during repeated pulling and pulling. This prevents the wear-resistant part 300 from damaging the local coating of the battery pack 10, thereby avoiding corrosion of the battery pack 10 due to surface coating damage in humid environments. In addition, the dual lateral and end-oriented constraints on the wear-resistant part 300 also reduce jamming caused by assembly deviations, thereby improving the assembly positioning accuracy and fixing reliability of the wear-resistant part 300. This enhances the smoothness of guidance and operational stability of the battery pack 10 when moving within the energy storage cabinet 100, and further improves the overall maintenance convenience and long-term service reliability.

[0072] Reference Figures 4 to 6 As shown, in some embodiments, this embodiment includes: the first limiting member 220 includes a first abutting portion 221 and a second abutting portion 222 connected to the first abutting portion 221, the first abutting portion 221 is a flange provided at the end of the support portion 213, the second abutting portion 222 is inclined toward the wear-resistant member 300, and the end of the wear-resistant member 300 and the end of the battery pack 10 both abut against the first abutting portion 221; and / or, the support portion 213, the limiting portion 214 and the first limiting member 220 are integrally bent into shape.

[0073] The first abutment portion 221 can be a flange located at the end of the support portion 213 and folded outwards. The folding direction of the first abutment portion 221 is usually approximately perpendicular to the plane of the support portion 213 to form a stable end face bearing area. The second abutment portion 222 extends from the first abutment portion 221 and is arranged obliquely towards the wear-resistant part 300. The second abutment portion 222 is used to prevent the wear-resistant part 300 from moving up and down. The first limiting member 220 can be made into an L-shaped flange, a Z-shaped flange, a stepped baffle, or a bent baffle with rounded corners. The first limiting member 220 can be integrally formed with the guide rail 210 using the same metal sheet, or it can be made of rigid materials such as steel plate, aluminum plate, or stainless steel plate. If weight reduction is required, a thin-walled metal part with surface anti-corrosion treatment can also be used. In some embodiments, the first limiting member 220 can also be connected to the support portion 213 by welding, screwing, or riveting to form an independent part.

[0074] The height of the first abutment portion 221 should generally be greater than the thickness of the end of the wear-resistant part 300 and the assembly deviation allowance to ensure that the wear-resistant part 300 can cover the lateral offset range; the effective contact width of the first abutment portion 221 should be greater than the contact width of the end of the wear-resistant part 300 to improve the uniformity of force distribution; a rounded corner or bending radius can be provided between the second abutment portion 222 and the first abutment portion 221 to avoid stress concentration and scratching of the wear-resistant part 300.

[0075] In another possible embodiment, the support portion 213, the limiting portion 214, and the first limiting member 220 can be integrally bent and formed. That is, the guide rail 210 can be formed from a single piece of sheet metal through processes such as punching and bending to form the support portion 213, the lateral limiting portion 214, and the end first limiting member 220. This eliminates any additional assembly gaps between the support portion 213, the limiting portion 214, and the first limiting member 220, thereby reducing assembly steps and improving structural consistency. The integral bending and forming of the first limiting member 220 with the support portion 213 provides greater integrity and resistance to deformation compared to assembly. When the wear-resistant part 300 is under pressure or the battery pack 10 is repeatedly pulled out, the first limiting member 220 is less likely to loosen, shift, or crack due to fatigue, thus maintaining the stability of the preset installation position.

[0076] For the integrated molding of the support part 213, the limiting part 214, and the first limiting member 220, the guide rail 210 can be formed using processes such as CNC bending, die bending, or continuous roll forming. After the guide rail 210 is formed, the bent edges are deburred to ensure smooth assembly of the wear-resistant part 300. If the guide rail 210 is a long strip structure, multiple bending units can be continuously arranged along its length to meet the needs of multiple sets of guide rails 210 corresponding to the multi-layer battery pack 10. It should be understood that the above examples are for demonstration purposes only and are not limiting.

[0077] The battery pack 10 is pulled out or pushed in within the energy storage cabinet 100 along the direction corresponding to the guide member 200. The wear-resistant part 300 on the guide rail 210 is first guided by the second abutment part 222 of the first limiting member 220 to gradually enter the preset installation area. Then, the end of the wear-resistant part 300 forms an end-to-end abutment with the first abutment part 221, and the end of the battery pack 10 also contacts the first abutment part 221 at the corresponding position, so as to uniformly constrain the relative position of the wear-resistant part 300 and the battery pack 10 in the length direction to a predetermined reference. If the support part 213, the limiting part 214 and the first limiting member 220 are integrally bent, the entire guide rail 210 can rely on the continuous plate structure to distribute the load when under force, reducing the fit error between individual parts.

[0078] Reference Figures 5 to 6 As shown, in some embodiments, this embodiment includes: the second limiting member 211 is a stamped protrusion 2111 disposed on the limiting part 214.

[0079] In one possible embodiment, the stamped protrusion 2111 is a positioning and limiting structure formed by applying stamping deformation to a local sheet metal part of the limiting part 214. The stamped protrusion 2111 is essentially a local bulge formed on the surface of the limiting part 214. The stamped protrusion 2111 is used to constrain the lateral position of the wear-resistant part 300. The function of the stamped protrusion 2111 is that when the wear-resistant part 300 is installed along the preset installation position of the guide rail 210, the stamped protrusion 2111 can reliably abut against the side of the wear-resistant part 300, thereby providing a lateral stop and positioning reference to prevent the wear-resistant part 300 from lateral movement, offset or rotation during assembly, and to continuously maintain the installation stability of the wear-resistant part 300 when the battery pack 10 moves in and out along the guide rail 210.

[0080] A stamped protrusion 2111 is provided on the limiting part 214, and the limiting part 214 is located on the side of the supporting part 213, so that the stamped protrusion 2111 can effectively constrain the wear-resistant part 300 without occupying the main sliding space of the battery pack 10. During assembly, the wear-resistant part 300 is first inserted from the direction of the supporting part 213 and the end is positioned with the first limiting part 220. Then, the stamped protrusion 2111 performs secondary limiting on the side of the wear-resistant part 300, thereby jointly defining the preset installation position of the wear-resistant part 300 with the first limiting part 220.

[0081] The stamped protrusion 2111 can be integrally stamped onto the sheet metal of the limiting part 214, or it can be formed locally by means of embossing, extrusion, etc. In terms of shape, it can be any one or more of the following: dome-shaped protrusion, strip-shaped rib, hemispherical boss or wedge-shaped protrusion. The stamped protrusion 2111 is usually integrally formed with the limiting part 214 using the same metal material, such as cold-rolled steel plate, stainless steel plate or aluminum alloy plate. Wear-resistant metal blocks can also be welded locally, riveted forming blocks can be formed, or metal inserts can be set to form an equivalent protrusion structure.

[0082] When the wear-resistant part 300 is pushed into the preset installation position of the guide rail 210, the end of the wear-resistant part 300 is positioned in conjunction with the first limiting member 220, and the side of the wear-resistant part 300 contacts or comes close to the stamped protrusion 2111 provided on the limiting part 214 for limiting. The stamped protrusion 2111 provides lateral support to the wear-resistant part 300 by utilizing the geometric constraint of the local bulge, thereby stably holding the wear-resistant part 300 in the predetermined installation posture on the guide rail 210. Since the stamped protrusion 2111 is partially formed by the limiting part 214, the stamped protrusion 2111 and the main body of the guide rail 210 have structural consistency and repeatability positioning accuracy. Therefore, during batch assembly, it can reduce the difficulty of manual alignment, reduce the probability of slippage of the wear-resistant part 300 during fastening, and help ensure the positional consistency of the wear-resistant parts 300 on each guide rail 210.

[0083] Reference Figures 5 to 6 As shown, in some embodiments, this embodiment includes: the stamped protrusion 2111 has a first guide surface 21111, an abutment surface 21112 and a second guide surface 21113 arranged in sequence, the abutment surface 21112 abuts against the side of the wear-resistant part 300, and the first guide surface 21111 and the second guide surface 21113 are respectively used to guide the battery pack 10 into and out of the energy storage cabinet 100.

[0084] The stamped protrusion 2111 is a limiting and guiding structure formed by local plastic deformation of a metal sheet. The stamped protrusion 2111 is disposed on the limiting portion 214 of the guide rail 210 and protrudes in the direction of the wear-resistant part 300. The stamped protrusion 2111 is used to limit the lateral position of the wear-resistant part 300 after it is installed in place, and simultaneously provides a guiding transition for the extraction and insertion of the battery pack 10. The main function of the stamped protrusion 2111 is to refine the traditional single stop structure into a composite structure that combines guiding, abutting, and guiding functions. This allows the battery pack 10 to gradually correct its posture via the first guiding surface 21111 when moving along the guide rail 210, then form a stable lateral contact with the abutting surface 21112, and subsequently receive a smooth transition via the second guiding surface 21113 during reverse movement. This reduces local interference, lowers frictional impact, and suppresses jamming.

[0085] The stamped protrusions 2111 are usually arranged on the surface of the limiting part 214 corresponding to the side of the wear-resistant part 300, and together with the support part 213 of the guide rail 210, they form an installation reference. When the wear-resistant part 300 is in the preset installation position, the side of the wear-resistant part 300 is reliably in contact with the abutment surface 21112. The edge of the battery pack 10 or the corresponding guide contact part passes through the first guide surface 21111, the abutment surface 21112 and the second guide surface 21113 in sequence during the pulling process, so as to complete the continuous guidance in the direction of entering and exiting the cabinet.

[0086] In one possible embodiment, the first guide surface 21111 and the second guide surface 21113 are respectively inclined surfaces or arc transition surfaces facing the abutment surface 21112. The first guide surface 21111 and the second guide surface 21113 are respectively disposed on both sides of the abutment surface 21112, so that the stamped protrusion 2111 forms a three-segment transition profile on the plane. The abutment surface 21112 can be a relatively straight local boss surface to ensure that the wear-resistant part 300 is not easily displaced when subjected to lateral force. The stamped protrusion 2111 can be formed as any one of a three-segment stepped boss, an arc transition protrusion, a conical protrusion, or a prismatic protrusion. The three-segment stepped boss facilitates the provision of clear positioning boundaries, the arc transition protrusion helps to reduce contact impact, the conical protrusion is suitable for completing guide correction within a short stroke, and the prismatic protrusion can improve the definition of limit while ensuring simple processing.

[0087] The stamped protrusion 2111 is generally integrally stamped with the limiting part 214 using the same metal sheet. The sheet can be cold-rolled steel, stainless steel, or aluminum alloy. Alternatively, after partial forming, it can be further improved in terms of dimensional stability and wear resistance through welding, reshaping, or surface hardening treatment. The dimensional relationship of the stamped protrusion 2111 is usually matched according to the thickness of the wear-resistant part 300, the spacing of the guide rails 210, and the lateral assembly tolerance of the battery pack 10. The slope of the first guide surface 21111 and the second guide surface 21113 is generally less than the normal limiting effect of the abutment surface 21112, so that the guiding process is smooth and the stopping process is clear. The axial length of the abutment surface 21112 is usually greater than or equal to the effective contact width of the side of the wear-resistant part 300 under assembly deviation, thereby ensuring that stable contact can still be formed under different batch assembly conditions.

[0088] The battery pack 10 moves in the energy storage cabinet 100 along the direction of the guide member 200. The side of the battery pack 10 first contacts the first guide surface 21111 of the stamped protrusion 2111. Under the action of the inclined surface or transition surface of the first guide surface 21111, the position of the battery pack 10 relative to the guide rail 210 is gradually corrected and moves closer to the preset installation center line. Then, the side of the wear-resistant part 300 forms a stable contact with the abutment surface 21112 of the stamped protrusion 2111, thereby limiting the wear-resistant part 300 from continuing to shift laterally. As the battery pack 10 continues to enter the energy storage cabinet 100, the second guide surface 21113 provides a continuous transition for the subsequent movement, so that the battery pack 10 can maintain a stable guiding state when approaching or exiting the final position.

[0089] Since the stamped protrusion 2111 serves the functions of guiding, limiting and guiding, the battery pack 10 can reduce edge collisions and local scratches during the process of entering and leaving the cabinet. The force between the wear-resistant part 300 and the guide rail 210 is uniform, thereby reducing the pulling resistance, improving the smoothness of operation, and helping to improve the alignment accuracy and batch consistency during assembly.

[0090] Reference Figures 4 to 6 As shown, in some embodiments, this embodiment includes: the wear-resistant part 300 is a low-resistance wear-resistant strip 320.

[0091] The low-resistance wear-resistant strip 320 is a strip-shaped friction-reducing component disposed on the surface of the guide rail 210 and used for sliding contact with the battery pack 10. Essentially, the low-resistance wear-resistant strip 320 is a guide contact component characterized by a low coefficient of friction, wear resistance, and stable load-bearing capacity. The low-resistance wear-resistant strip 320 forms a continuous or near-continuous sliding contact interface when the battery pack 10 is pulled in and out of the energy storage cabinet 100. The function of the low-resistance wear-resistant strip 320 is to reduce the driving force required for pulling and pulling by its own low contact resistance during the movement of the battery pack 10 along the guide rail 210, and to disperse local contact stress through its wear-resistant surface, thereby reducing the wear rate between the guide rail 210 and the battery pack 10, and avoiding scratches, jamming, or abnormal noise caused by direct metal-to-metal friction.

[0092] The low-resistance wear-resistant strip 320 is typically installed on the support surface, bearing surface, or limiting surface of the guide rail 210 and extends along the length of the guide rail 210. The installation position of the low-resistance wear-resistant strip 320 corresponds to the travel path of the battery pack 10, so that the battery pack 10 always forms a stable fit with the low-resistance wear-resistant strip 320 when entering and exiting the energy storage cabinet 100. In one possible embodiment, the low-resistance wear-resistant strip 320 can be fixed to the preset installation position of the guide rail 210 by the connector 400 and cooperate with the first limiting member 220 and the second limiting member 211 on the guide rail 210 to keep the low-resistance wear-resistant strip 320 stable in the axial and lateral directions.

[0093] The low-resistance wear-resistant strip 320 can be in the form of a long strip, sheet, band, or segmented spliced ​​strip structure. The long strip structure facilitates the provision of a continuous contact surface along the entire effective guide length, while the segmented spliced ​​strip structure facilitates local replacement and adaptation to different guide rail 210 lengths. The low-resistance wear-resistant strip 320 can be made of polytetrafluoroethylene, ultra-high molecular weight polyethylene, nylon, composite materials containing lubricating fillers, or a composite structure with a friction-reducing layer coated on the surface of a metal substrate. Alternatively, a wear-resistant coating or embedded self-lubricating particles can be set on the surface of the metal strip to improve tribological performance while meeting strength requirements.

[0094] Under external driving or manual pushing, the battery pack 10 moves in and out along the guide 200 inside the energy storage cabinet 100. The low-resistance wear-resistant strip 320 first forms a sliding fit with the load-bearing contact part of the battery pack 10, and provides a continuous low-friction support interface for the battery pack 10 under the constraint of the guide rail 210. Since the low-resistance wear-resistant strip 320 is arranged along the length of the guide rail 210 and the surface material of the low-resistance wear-resistant strip 320 has a low coefficient of friction, the resistance experienced by the battery pack 10 during movement is reduced, and the contact load is distributed to a long contact area, thereby reducing local indentation and wear. During the process of the battery pack 10 entering or exiting the cabinet, the low-resistance wear-resistant strip 320 can also cooperate with the limiting structure on the guide rail 210 to maintain the stability of the movement trajectory of the battery pack 10 and reduce edge erosion caused by deflection.

[0095] When the battery pack 10 experiences slight posture fluctuations during repeated pulling and retraction, the low-resistance wear-resistant strip 320 can compensate for contact deviations to a certain extent through its own elastic micro-deformation or surface self-lubricating properties, avoiding instantaneous impacts caused by hard contact, thereby improving the smoothness of pulling and retraction and operational consistency. Based on the above working process, it can be seen that by setting the wear-resistant part 300 as the low-resistance wear-resistant strip 320, effective control of the moving resistance of the battery pack 10, continuous suppression of friction and wear, and improvement of assembly and maintenance convenience can be achieved without increasing the structural complexity of the guide rail 210. This is conducive to improving the long-term operational reliability and batch assembly consistency of the energy storage device.

[0096] Reference Figures 1 to 4 As shown, in some embodiments, this embodiment includes: the battery pack 10 includes a battery pack body 11 and an extension 12 disposed on the battery pack body 11, and a portion of the extension 12 contacts the wear-resistant component 300.

[0097] The battery pack body 11 is the main structure for housing the battery cells, busbars, sampling and protection circuits, and thermal management components. The extension 12 is a contact and guiding structure located on the outer periphery of the battery pack body 11 and extending outward. The extension 12 is used to form a clear force boundary and contact interface when the battery pack 10 moves within the energy storage cabinet 100, thereby separating and cooperating the load-bearing function and the pull-out guiding function of the battery pack body 11. When the extension 12 contacts the wear-resistant part 300, it can transfer the lateral load, local friction load, and attitude constraint load of the battery pack 10 during the pulling out or pushing in process to the wear-resistant part 300 and the guide part 200, so that the battery pack body 11 can maintain smooth movement with less direct wear.

[0098] The extension 12 can be disposed on the side edges, front edge, rear edge, or bottom edge of the battery pack body 11 to form lateral guide ears, front and rear limiting edges, sliding support edges, or reinforced contact edges, so that the extension 12 makes line contact, surface contact, or partial surface contact with the wear-resistant part 300 when it enters the corresponding area of ​​the guide rail 210. In one possible embodiment, the extension 12 can be an integrally stamped flange structure. In another possible embodiment, the battery pack 10 also includes a support plate, the battery pack body 11 is disposed on the support plate, and the extension 12 can be an independent contact strip structure welded or screwed to the support plate. The extension 12 can also be a side wing, guide ear plate, or guide rail 210 seat structure integrally formed with the support plate.

[0099] The battery pack body 11 can be made of steel plate shell, aluminum alloy shell or composite material frame. The extension 12 and support plate can be made of the same metal material as the body, or they can be made of surface-hardened metal parts, reinforced engineering plastic parts or composite parts with low friction coating, so as to reduce the coefficient of friction with wear-resistant parts 300 while ensuring strength.

[0100] The extension length of the extension 12 is usually matched with the effective contact width of the guide rail 210 and the wear-resistant part 300. It should meet the requirement of forming a stable guide during the pull-out process, and avoid interference with adjacent battery packs 10, cabinet columns or other installation parts.

[0101] By having the extension 12 on the battery pack body 11 or support plate contact the wear-resistant part 300, a clear contact reference and force path are formed during the pulling process. This reduces the amount of sway and posture deviation of the battery pack 10 when it moves within the cabinet, lowers the difficulty of assembly alignment, and reduces local wear, jamming, or resistance fluctuations caused by contact misalignment. This improves the consistency of batch assembly of energy storage devices and the operational reliability during subsequent maintenance and replacement. It should be understood that the above example is for demonstration purposes only and is not limiting.

[0102] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0103] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. An energy storage device, characterized in that, include: Energy storage cabinet (100); A guide (200) includes at least two opposing guide rails (210) and a first limiting member (220). The guide rails (210) are disposed inside the energy storage cabinet (100). The two guide rails (210) are respectively used to correspond to opposite sides of the same battery pack (10). The guide rails (210) are used to provide guidance for the movement of the battery pack (10) on the energy storage cabinet (100). The first limiting member (220) is disposed at the end of the guide rails (210). Wear-resistant component (300) is disposed on the guide rail (210), the wear-resistant component (300) is used to contact the battery pack (10), and the end of the wear-resistant component (300) abuts against the first limiting component (220); The guide rail (210) is provided with a second limiting member (211), which abuts against the side of the wear-resistant part (300). The first limiting member (220) and the second limiting member (211) are used together to restrict the wear-resistant part (300) on the guide rail (210) to a preset installation position for mounting the wear-resistant part (300). The wear-resistant component (300) includes multiple wear-resistant segments, which are sequentially spliced ​​together along the length of the guide rail (210), and each wear-resistant segment is detachably connected to the guide rail (210).

2. The energy storage device according to claim 1, characterized in that, It also includes multiple battery packs (10), and the guide (200) is arranged in multiple layers along the height direction of the energy storage cabinet (100).

3. The energy storage device according to claim 2, characterized in that, It also includes a connector (400), the guide rail (210) has a first connecting part (212), the wear-resistant part (300) is provided with a second connecting part (310), when the wear-resistant part (300) is in the preset installation position of the guide rail (210), the first connecting part (212) corresponds to the second connecting part (310), and the connector (400) connects the wear-resistant part (300) and the guide rail (210) through the first connecting part (212) and the second connecting part (310).

4. The energy storage device according to claim 2, characterized in that, The guide rail (210) includes a support portion (213) and a limiting portion (214) connected to the support portion (213). The first limiting member (220) is disposed at the end of the support portion (213). The wear-resistant member (300) is located on the side of the support portion (213) facing the limiting portion (214). The limiting portion (214) is located on the side of the support portion (213). The second limiting member (211) is located on the limiting portion (214).

5. The energy storage device according to claim 4, characterized in that, The first limiting member (220) includes a first abutting part (221) and a second abutting part (222) connected to the first abutting part (221). The first abutting part (221) is a flange provided at the end of the support part (213). The second abutting part (222) is inclined toward the wear-resistant part (300). The end of the wear-resistant part (300) and the end of the battery pack (10) abut against the first abutting part (221). And / or, the support portion (213), the limiting portion (214) and the first limiting member (220) are integrally bent into shape.

6. The energy storage device according to claim 4, characterized in that, The second limiting member (211) is a stamped protrusion (2111) provided on the limiting part (214).

7. The energy storage device according to claim 6, characterized in that, The stamped protrusion (2111) has a first guide surface (21111), an abutment surface (21112), and a second guide surface (21113) arranged in sequence. The abutment surface (21112) abuts against the side of the wear-resistant part (300). The first guide surface (21111) and the second guide surface (21113) are respectively used to guide the battery pack (10) into and out of the energy storage cabinet (100).

8. The energy storage device according to any one of claims 1-7, characterized in that, The wear-resistant part (300) is a low-resistance wear-resistant strip (320).

9. The energy storage device according to any one of claims 1-7, characterized in that, The battery pack (10) includes a battery pack body (11) and an extension (12) disposed on the battery pack body (11), a portion of the extension (12) being in contact with the wear-resistant component (300).

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