Energy storage devices

Abstract

An embodiment of this utility model provides an energy storage device, comprising: an energy storage box; and a support structure movably connected to the outer wall of the energy storage box. The support structure includes a retracted state and at least one extended state. When the support structure is switched to any extended state, it extends away from the outer wall of the energy storage box. When the support structure is in the retracted state, its lower edge does not protrude from the bottom wall of the energy storage box. The extension length of the support structure in the extended state is greater than its extension length in the retracted state. In this utility model's technical solution, the support structure improves the overall center of gravity distribution of the device, significantly reducing the risk of tipping over and ensuring stable placement of the device on balconies or uneven outdoor ground.

Description

Technical Field

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

[0002] With the increasing popularity of green energy, the demand for photovoltaic and corresponding energy storage batteries is gradually increasing, especially in outdoor scenarios. After the photovoltaic panels are deployed, they need to be connected to the energy storage device. However, the energy storage device itself has a relatively regular shape, but the ground on which it is placed may be uneven or the soil may be soft and prone to movement. At this time, due to its large weight, the energy storage device may shift its center of gravity and eventually tip over, which will have an adverse effect on the connected lines and the internal components of the energy storage device. Utility Model Content

[0003] In order to solve or improve the technical problem that the above-mentioned energy storage devices are prone to tipping over when used outdoors, one objective of this utility model is to provide an energy storage device.

[0004] To achieve the above objectives, the first aspect of this utility model provides an energy storage device, comprising: an energy storage box; and a support structure movably connected to the outer wall of the energy storage box. The support structure includes a retracted state and at least one extended state. When the support structure is switched to any extended state, the support structure extends away from the outer wall of the energy storage box. When the support structure is in the retracted state, the lower edge of the support structure does not protrude from the bottom wall of the energy storage box. The extension length of the support structure in the extended state is greater than the extension length of the support structure in the retracted state.

[0005] According to the energy storage device provided by this utility model, when the support structure is extended, it extends a considerable length, providing additional support surface, especially for the heavier battery module side, improving the center of gravity distribution, significantly reducing the risk of the device tipping over, and ensuring stable placement of the device on balconies or uneven outdoor ground. When the support structure is retracted to a shorter length in the storage state, the entire device is compact, facilitating handling, storage, and transportation, and reducing space occupation.

[0006] In the above technical solution, the support structure specifically includes: a connecting plate, one end of which is rotatably connected to the energy storage box; an extension plate, which is slidably connected to the connecting plate, and a support foot is provided at the end of the extension plate away from the connecting plate; wherein, the maximum distance between the support foot and the connecting plate in the extended state is greater than the maximum distance between the support foot and the connecting plate in the retracted state.

[0007] The above technical solution also includes: a guide rail, disposed on the connecting plate, the guide rail including a sliding hole and at least two locking holes; a slider, disposed on the extension plate, the slider being adapted to the shape of the guide rail; wherein, the guide rail is arranged along the extension and retraction direction of the support structure.

[0008] In the above technical solution, the slider specifically includes an elastic base and a sliding part arranged along the thickness direction of the extension plate. The elastic base is connected to the extension plate and can extend and retract along the thickness direction of the extension plate. The outer diameter of the sliding part is smaller than the outer diameter of the elastic base. The shape of the sliding part is adapted to the shape of the sliding hole, and the shape of the elastic base is adapted to the shape of the locking hole.

[0009] The above technical solution also includes: a button part, which is located at the end of the sliding part away from the elastic base, and the button part is higher than the connecting plate; wherein the outer diameter of the button part is smaller than the outer diameter of the sliding part.

[0010] The above technical solution also includes: guide slots, which are provided on both sides of the extension plate. The guide slots are used to limit the lateral displacement of the connecting plate in the extension and contraction direction of the support structure.

[0011] In the above technical solution, the guide slot specifically includes: a connecting protrusion, which is located on both sides of the extension plate, and the connecting protrusion is located at the end of the extension plate away from the support foot; and an anti-detachment protrusion, which is connected to the connecting protrusion, and the projection of the anti-detachment protrusion on the extension plate is located within the projection of the connecting plate on the extension plate.

[0012] The above technical solution also includes: an installation groove, which is located on the wall of the energy storage box; wherein the support structure is in a retracted state and the support structure is in contact with the bottom of the installation groove.

[0013] In the above technical solution, the mounting groove includes a fitting area and an operating area. The bracket structure is rotatably connected to the groove wall away from the bottom surface in the height direction. The bracket structure rotates to the storage state and fits against the bottom of the groove in the fitting area.

[0014] In the above technical solution, the support structure is in a retracted state, and the side surface of the support structure away from the bottom of the mounting groove is lower than the plane where the opening of the mounting groove is located. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of an energy storage device according to an embodiment of the present invention is shown;

[0016] Figure 2 A schematic diagram of the structure of an energy storage device according to an embodiment of the present invention is shown;

[0017] Figure 3 A schematic diagram of a support structure according to an embodiment of the present invention is shown;

[0018] Figure 4 A schematic diagram of a support structure according to an embodiment of the present invention is shown;

[0019] Figure 5A schematic diagram of the structure of an energy storage device according to an embodiment of the present invention is shown;

[0020] Figure 6 A schematic diagram of the structure of an energy storage device according to an embodiment of the present invention is shown;

[0021] Figure 7 A schematic diagram of the structure of an energy storage device according to an embodiment of the present invention is shown;

[0022] Figure 8 A schematic diagram of the structure of an energy storage device according to an embodiment of the present invention is shown.

[0023] in, Figures 1 to 8 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0024] 100: Energy storage device; 102: Energy storage box; 1022: First shell; 1024: Second shell; 1026: Heat dissipation fins; 104: Support structure; 1042: Connecting plate; 1044: Extension plate; 1046: Support leg; 106: Guide rail; 1062: Sliding hole; 1064: Locking hole; 108: Slider; 1082: Elastic base; 1084: Sliding part; 1086: Button part; 110: Guide slot; 1102: Connecting protrusion; 1104: Anti-detachment protrusion; 112: Mounting groove; 1122: Fitting area; 1124: Operating area. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of the embodiments of this utility model, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, embodiments of the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0027] The following reference Figures 1 to 8 This invention describes an energy storage device provided according to some embodiments of the present invention.

[0028] like Figure 1 and Figure 2As shown, embodiments of this application provide an energy storage device 100. When extended, the support structure 104 extends a considerable length, providing additional support, particularly for the heavier battery module side. This improves the center of gravity distribution, significantly reduces the risk of tipping, and ensures stable placement of the device on balconies or uneven outdoor surfaces. When retracted, the support structure 104 shrinks to a shorter length, making the entire device compact, facilitating handling, storage, and transportation, and reducing space occupancy.

[0029] It should be added that in the energy storage device 100 of this solution, the support structure 104 has a retracted state and one or more extended states. In the retracted state, the support structure 104 is hidden inside the energy storage box 102, that is, the lower edge of the support structure 104 does not protrude from the bottom wall of the energy storage box 102.

[0030] When the support structure 104 switches from the retracted state to the extended state, or from one of the extended states with a shorter extension length to one with a longer extension length, the support structure 104 will extend outward, that is, extend to the side away from the outer wall of the energy storage box 102, thus providing an additional support surface.

[0031] In other words, the support structure 104 of this solution has a certain shrinkage capacity. After shrinking, i.e., in a retracted state, the support structure 104 will not affect the stacking of the energy storage device 100 with other devices, for example, as... Figure 5 and Figure 6 As shown, Figure 5 The support structure 104 is in its longest extended state. Figure 6 With the support structure 104 in a stowed state, multiple energy storage devices 100 are stacked, and the support structure 104 is provided on the back side of each energy storage device 100.

[0032] In some embodiments, such as Figure 1 and Figure 2 As shown, the energy storage device 100 is an integrated energy storage unit. Figure 1 The support structure 104 is in a retracted state. Figure 2 With the support structure 104 in its longest extended state, it houses devices such as an inverter, battery, and electronic control board. Alternatively, in another embodiment, such as... Figure 7 and Figure 8 As shown, Figure 7 The support structure 104 is in a retracted state. Figure 8 With the support structure 104 in its longest extended state, the energy storage device 100 may simply be a battery pack with energy storage function, unable to charge and discharge independently. It can improve energy storage capacity and enable normal use of charging and discharging functions by connecting with an integrated energy storage unit.

[0033] When the support structure 104 is extended, i.e. in any extended state, it is suitable for users to take the energy storage device 100 outdoors and place it on uneven ground for support.

[0034] Specifically, the energy storage device 100 includes an energy storage housing 102 and a support structure 104. Further, the energy storage housing 102 includes a first shell 1022 and a second shell 1024, which extend along... Figure 2 The two housings are arranged adjacent to each other in the front-to-back direction and are detachably connected. The first housing 1022 has multiple heat dissipation fins 1026 on the side away from the second housing 1024, and is integrally formed with the first housing 1022. By integrating the heat dissipation fins 1026 onto the first housing 1022, the overall volume of the energy storage device 100 is reduced. The integrally formed heat dissipation fins 1026 onto the first housing 1022 ensure a short heat conduction path, high heat dissipation efficiency, reduced thermal resistance, and improved thermal management of the battery module. Furthermore, the detachable connection between the first housing 1022 and the second housing 1024 makes it easier to inspect or replace the battery module installed in the second housing 1024. Simultaneously, the first housing 1022 can be disassembled independently for easy maintenance of the heat dissipation system or the housing itself.

[0035] It is understood that the first housing 1022 integrates heat dissipation fins 1026 and houses components with high heat generation, such as an inverter. The second housing 1024 houses the battery module. The support structure 104 in this design can be positioned at the heavier end (either the battery side or the inverter side) depending on the weight difference between the first and second housings 1022 and 1024. The support structure 104 prevents tipping; specifically, it is adjusted towards the lower side of the ground. The support structure 104 effectively solves the problems of unstable center of gravity and easy tipping, or the risk of tipping on uneven outdoor ground.

[0036] Furthermore, the heat dissipation fins are designed with 1026 spacing to ensure airflow and promote natural convection heat dissipation.

[0037] The support structure 104 is movably connected to the outer wall of at least one of the first housing 1022 and the second housing 1024. Specifically, the support structure 104 can be connected to the outer wall of the housing via a hinge, slide rail, or buckle, allowing the support structure 104 to rotate or extend within a certain range, enabling it to unfold or retract as needed to meet different usage scenarios. The support structure 104 can be installed individually on the first housing 1022 or the second housing 1024, or simultaneously on both. During use, it can flexibly extend and retract according to the relative weights of the first housing 1022 and the second housing 1024. Essentially, during use, the support structure 104 on the heavier side will extend to prevent the energy storage device 100 from tipping over.

[0038] When extended, the support structure 104 has a long extension length, protruding from the shell and forming a stable support base. When retracted, the support structure 104 has a short extension length, closely attached to or close to the surface of the shell.

[0039] In the extended state, the support length is increased, the support base area is expanded, the center of gravity of the equipment is lowered, the anti-tipping ability is improved, and it can adapt to uneven ground, such as the brick joints of balconies and grass. The 104 support structure has an adjustable telescopic length to ensure that the equipment is placed horizontally.

[0040] When stowed, the support structure 104 retracts, reducing exposed parts and preventing damage during transportation.

[0041] The bracket structure 104 is movably connected to the outer wall of the shell by means of a hinge or sliding mechanism, which allows the bracket structure 104 to rotate or extend and retract, thereby enabling multi-position switching. The bracket structure 104 can switch between support and storage positions to meet the needs of different working conditions.

[0042] In a specific embodiment, such as Figure 1 and Figure 2 As shown, a support structure 104 is provided on the left and right sides of the rear wall of the energy storage device 100 to improve the support strength.

[0043] It should be added that, in the extended state, the support structure 104 unfolds, the support point is away from the center of gravity of the box, the force-bearing area is increased, and by extending the length of the support structure 104, the overall center of gravity is lowered, thus improving the stability of the equipment.

[0044] In summary, this solution effectively addresses the risks of instability and tipping caused by uneven outdoor ground in the energy storage device 100, particularly in balcony photovoltaic energy storage applications, through its modular enclosure design and flexible, movable support structure 104. The telescopic and movable connection design of the support structure 104 balances stability during use with compactness during storage. Furthermore, the integrated heat dissipation fins 1026 also reduce the overall size of the device.

[0045] In some embodiments, the support structure 104 may optionally include a connecting plate 1042 and an extension plate 1044. One end of the connecting plate 1042 is rotatably connected to the first housing 1022, for example, by means of a hinge, a pin, etc., to achieve free rotation, and is stably installed on the outer wall of the first housing 1022 to bear the overall force of the support structure 104.

[0046] The connecting plate 1042 serves as the hub between the support structure 104 and the housing, allowing the support structure 104 to rotate and unfold from the storage position to the support position. At the same time, the connecting plate 1042 also bears the force transmitted when the center of gravity of the energy storage device 100 shifts, ensuring a stable connection between the support structure 104 and the housing.

[0047] Furthermore, the hinge or pivot connecting the connecting plate 1042 and the first housing 1022 is made of corrosion-resistant material and has sufficient strength and smooth rotation. In addition, the connection between the connecting plate 1042 and the housing should have a waterproof sealing design to prevent rainwater from entering.

[0048] The extension plate 1044 is slidably connected to the connecting plate 1042, specifically through a sliding mechanism, allowing the extension plate 1044 to extend and retract along the direction of the connecting plate 1042. In addition, the end of the extension plate 1044 away from the connecting plate 1042 is provided with a foot 1046 to provide a contact surface for support.

[0049] The extension plate 1044 allows for adjustable telescopic length, enabling the support structure 104 to achieve variable length. Users can adjust the extension length of the extension plate 1044 according to ground conditions to ensure that the support legs 1046 are firmly in contact with the ground, thus improving stability. Of course, the sliding design also allows the extension plate 1044 to be retracted when not in use, reducing the overall size of the support structure 104 and facilitating storage and transportation.

[0050] The support leg 1046 is located at the end of the extension plate 1044 away from the connecting plate 1042. The support leg 1046 is in direct contact with the ground and bears the weight of the equipment and provides stable support.

[0051] Of course, the bottom of the support leg 1046 has a large anti-slip pad to increase friction with the ground and prevent slippage. Alternatively, the bottom of the support leg 1046 can be designed to be height-adjustable or have a soft pad to adapt to balcony tile joints, grass, or uneven ground, improving the stability of the equipment.

[0052] It should be added that the rotatable connection between the connecting plate 1042 and the first housing 1022 enables the support structure 104 to rotate and unfold from the storage position to the support position. In the extended state, the connecting plate 1042 serves as the fixed base point of the support structure 104, bearing the weight of the equipment and external forces.

[0053] The sliding connection between the connecting plate 1042 and the extension plate 1044 allows the extension plate 1044 to extend and retract along the direction of the connecting plate 1042, adjusting the length of the support structure 104. In the extended state, the extension plate 1044 extends to its maximum extent, maximizing the distance between the support leg 1046 and the connecting plate 1042, thus expanding the support base and reducing the risk of tipping over. In the retracted state, the extension plate 1044 retracts, minimizing the distance between the support leg 1046 and the connecting plate 1042, resulting in a compact support structure 104 that is easy to store and transport.

[0054] like Figure 2 As shown, in the extended state, the support structure 104 unfolds, the support leg 1046 moves away from the connecting plate 1042, and the extension plate 1044 extends to its maximum distance. In the extended state, the extension plate 1044 extends to its maximum distance, increasing the area of ​​the support base and improving the stability of the equipment.

[0055] like Figure 1 As shown, in the stowed state, the bracket structure 104 is retracted, the legs 1046 are close to the connecting plate 1042, and the extension plate 1044 is retracted to the shortest distance. In the stowed state, the size of the bracket structure 104 is reduced, making it easier to transport and install.

[0056] In some embodiments, optionally, such as Figure 3 and Figure 4 As shown, the sliding connection between the connecting plate 1042 and the extension plate 1044 is specifically achieved through a guide rail 106 and a slider 108. The guide rail 106 is disposed on the connecting plate 1042 and arranged along the extension direction of the support structure 104. It includes one or more sliding holes 1062, i.e., slide grooves, and at least two locking holes 1064. The sliding holes 1062 serve as sliding channels for the slider 108, ensuring that the extension plate 1044 extends and retracts linearly along the extension direction, avoiding wobbling and offset. The locking holes 1064 are used to support locking mechanisms, such as spring pins, bolts, and buckles, to achieve quick and secure locking after the extension plate 1044 is adjusted to a suitable position, preventing the slider 108 from accidentally sliding during use.

[0057] The slider 108 is mounted on the extension plate 1044 and its shape matches the sliding hole 1062 of the guide rail 106. For example, the elongated or cylindrical slider 108 mates with the corresponding groove. The slider 108 mates with the guide rail 106, allowing sliding but restricting the degrees of freedom in other directions.

[0058] It should be noted that the guide rail 106 is firmly fixed to the surface of the connecting plate 1042 and arranged along the extension direction of the bracket structure 104. The length of the guide rail 106 covers the maximum possible extension range of the extension plate 1044, ensuring that the slider 108 slides in a controlled manner throughout the entire process within the guide rail 106.

[0059] The slider 108 is installed at the corresponding position on the extension plate 1044 and can be fixed by bolts or molded into an integrated design.

[0060] The sliding hole 1062 provides a free sliding channel for the slider 108, ensuring that the extension plate 1044 is adjustable in length. At least two locking holes 1064 are distributed at different positions on the guide rail 106 for inserting locking pins or locking devices to achieve multi-position locking. This multi-locking hole 1064 design allows users to select the telescopic length according to actual needs and flexibly adjust the support range of the bracket structure 104.

[0061] In the folded state, the bracket structure 104 is folded, the connecting plate 1042 and the extension plate 1044 are close together, and the slider 108 is located at the starting position of the sliding hole 1062 of the guide rail 106. If there is a locking pin, it can be inserted into the locking hole 1064 of the guide rail 106 to fix the bracket structure 104 in its shortest state. The support leg 1046 is close to the connecting plate 1042. The overall volume is small, making it easy to transport and store.

[0062] In the extended state, the user releases the locking pin, and the slider 108 moves outward along the sliding hole 1062 of the guide rail 106. The extension plate 1044 extends. After extending to the appropriate position, the locking pin is inserted into the corresponding locking hole 1064 to achieve multi-position stable locking. The support foot 1046 moves away from the connecting plate 1042, expanding the support area, improving the stability of the equipment, and adapting to uneven ground.

[0063] By setting guide rails 106 on the connecting plate 1042 and equipping the extension plate 1044 with sliders 108, the extension and retraction movements of the support structure 104 achieve high stability, precision, and safety. The sliding holes 1062 of the guide rails 106 ensure smooth adjustment of the support structure 104, while the locking holes 1064 provide multi-position secure locking to prevent accidental slippage. This entire design significantly improves the anti-tipping performance and user experience of the balcony photovoltaic energy storage product support structure 104, while also ensuring the durability and reliability of the support structure 104.

[0064] In some embodiments, the slider 108 may optionally include an elastic base 1082 and a sliding portion 1084. The elastic base 1082 is disposed along the thickness direction of the extension plate 1044 and is directly connected and fixed to the extension plate 1044. It has a certain elasticity and can extend and retract (compress and rebound) along the thickness direction. At the same time, it limits the outer diameter of the elastic base 1082 to be greater than that of the sliding portion 1084. Its shape is adapted to the shape of the locking hole 1064 on the guide rail 106 (usually circular, elliptical or a specific geometric shape).

[0065] The elastic base 1082, through its engagement with the locking hole 1064 of the guide rail 106, reliably locks the telescopic position of the support structure 104. The elastic deformation allows the slider 108 to engage with the locking hole 1064, ensuring that the support structure 104 does not slide within the set length.

[0066] The outer diameter of the sliding part 1084 is smaller than the outer diameter of the elastic base 1082, ensuring free sliding within the sliding hole 1062 of the guide rail 106. The shape of the sliding part 1084 is adapted to the shape of the sliding hole 1062 on the guide rail 106 (such as cylindrical, rectangular, etc.), ensuring accurate guidance and no shaking during sliding.

[0067] The sliding part 1084 can be fixed to the elastic base 1082 or integrally formed on one end of the elastic base 1082. The sliding part 1084 slides smoothly in the sliding hole 1062 of the guide rail 106, ensuring the precise extension and retraction of the extension plate 1044 along the direction of the connecting plate 1042.

[0068] Furthermore, the elastic base 1082 is made of elastic plastic (such as thermoplastic polyurethane elastomer, silicone) or elastic composite material to ensure sufficient elasticity and durability.

[0069] The thickness design of the elastic base 1082 needs to meet the compression deformation requirements when inserted into the locking hole 1064, so that it can be smoothly inserted into the locking hole 1064 and generate sufficient reaction force in the locking hole 1064 to achieve fixation.

[0070] The shape of the flexible base 1082 matches the locking hole 1064 (e.g., a circular locking hole with a circular base) to ensure stability during locking and prevent rotation.

[0071] During the sliding extension phase, the sliding part 1084 slides within the sliding hole 1062 of the guide rail 106, the extension plate 1044 extends or retracts with the user's operation, and the elastic base 1082 moves with the sliding part 1084. It does not produce a locking effect when it does not enter the locking hole 1064.

[0072] During the locking phase, when the slider 108 slides to the position of the locking hole 1064, the elastic base 1082, being slightly larger than the locking hole 1064, undergoes elastic compression deformation. The elastic base 1082 "gets into" the locking hole 1064, generating a reaction force at the opening, which fixes the bracket structure 104 in that position, thereby enabling multi-length locking.

[0073] During the unlocking phase, the user applies force to press into the elastic base 1082 to release the lock, allowing the sliding part 1084 to engage with the sliding hole 1062, thus allowing the slider 108 to continue sliding and adjusting.

[0074] It is understandable that this solution achieves both smooth sliding and multi-position secure locking through the elastic base 1082 and the sliding part 1084. The elastic base 1082's extendable elasticity and shape adaptation to the locking hole 1064 ensure reliable locking with a certain degree of cushioning, while the sliding part 1084 guarantees precise and smooth sliding. The overall design greatly improves the safety, durability, and user experience of the telescopic mechanism of the bracket structure 104, making it a very reasonable and practical structural solution.

[0075] In some embodiments, the slider 108 may optionally include a button portion 1086, which is located at the end of the slider 1084 away from the elastic base 1082, i.e., the foremost part of the slider 108. The outer diameter of the button portion 1086 is smaller than the outer diameter of the slider 1084, ensuring that the button portion 1086 can be operated flexibly and will not get stuck in the sliding hole 1062 of the guide rail 106. The button portion 1086 is higher than the surface of the connecting plate 1042, making it convenient for the user to touch and operate with their fingers.

[0076] The button part 1086 has a shape including but not limited to a circle or an oval, which makes it easy to press.

[0077] It should be added that the button part 1086 is fixed to the sliding part 1084. As part of the slider 108 as a whole, the size and shape design of the button part 1086 must ensure that it protrudes outside the sliding hole 1062 of the guide rail 106, so as to facilitate operation but not interfere with the sliding trajectory.

[0078] The button 1086 is connected to the elastic base 1082 by an elastic snap-fit ​​structure. When the button is pressed, the elastic base 1082 deforms and releases the locking hole 1064 of the guide rail 106, thereby unlocking the slider 108. The button protrudes from the connecting plate 1042, and the user can press it directly with their finger without the need for tools, making the operation simple and intuitive.

[0079] Of course, the button design prevents accidental operation. Only after the button is pressed will the elastic base 1082 elastically deform and disengage from the locking hole 1064, preventing the bracket structure 104 from accidentally sliding while in the unlocked state. After the user presses the button, the slider 108 can slide freely within the guide rail 106, facilitating the adjustment of the extension length of the bracket structure 104. After releasing the button, the elastic base 1082 returns to its shape and re-locks into the locking hole 1064, achieving a stable multi-position locking.

[0080] In this design, the button 1086 enables manual control of the locking mechanism of the elastic base 1082, greatly improving the user-friendliness and safety of the telescopic mechanism of the bracket structure 104. Its design, with an outer diameter smaller than the sliding part 1084 and higher than the connecting plate 1042, ensures convenient button operation without affecting the smoothness of the sliding trajectory.

[0081] In some embodiments, the guide groove 110 is optionally provided on both sides of the extension plate 1044 and extends along the telescopic direction of the bracket structure 104. The guide groove 110 can be a long strip groove with the opening facing inward. Its shape matches the edges of both sides of the connecting plate 1042. There is one guide groove on each side of the guide groove 110, which is provided in pairs to ensure lateral constraint.

[0082] It should be noted that the guide groove 110 is fixed on both sides of the extension plate 1044, serving as a guide mechanism between the extension plate 1044 and the connecting plate 1042. The edge of the connecting plate 1042 is embedded in the guide groove 110, forming a sliding fit.

[0083] It is understood that the guide slot 110 restricts the lateral swing or offset of the connecting plate 1042 in the telescopic direction, ensuring that the connecting plate 1042 and the extension plate 1044 maintain the same trajectory during telescopic movement. The guide slot 110 ensures that the telescopic movement of the bracket structure 104 is along a predetermined straight line, avoiding misalignment of the guide rail 106 and the slider 108 due to lateral offset, and ensuring precise docking of the locking hole 1064 and the elastic base 1082.

[0084] The guide slot 110, as a key lateral guide mechanism in the support structure 104, works in conjunction with the sliding of the connecting plate 1042 to ensure that the extension and retraction of the entire support structure 104 is not only smooth in the longitudinal direction, but also effectively avoids lateral swaying and offset. This improves the stability, durability, and safety of the support structure 104, ensuring that the anti-tipping support structure 104 of the balcony photovoltaic energy storage product can work reliably in complex outdoor environments.

[0085] In some embodiments, the guide slot 110 optionally includes a connecting protrusion 1102 and an anti-detachment protrusion 1104 connected together. The connecting protrusion 1102 is disposed on both sides of the extension plate 1044, and is located near the end of the extension plate 1044 away from the support leg 1046, that is, near the end of the connecting plate 1042. The connecting protrusion 1102 serves as the main guide structure of the guide slot 110, forming the track of the sliding guide rail 106 channel that cooperates with the connecting plate 1042.

[0086] The connecting protrusion 1102 provides lateral constraint for the connecting plate 1042, preventing the connecting plate 1042 from lateral displacement or swaying in the telescopic direction. The connecting protrusion 1102 serves as the structural boundary of the guide slot 110, ensuring the accuracy and consistency of the sliding path.

[0087] The anti-detachment protrusion 1104 is connected to the connecting protrusion 1102 to form an integral structure. By limiting the projection of the anti-detachment protrusion 1104 on the extension plate 1044 to be within the projection range of the connecting plate 1042 on the extension plate 1044, that is, the anti-detachment protrusion 1104 wraps around or covers the corresponding area of ​​the connecting plate 1042, the connecting plate 1042 is prevented from accidentally detaching from the guide slot 110 in the horizontal or vertical direction.

[0088] The anti-detachment protrusion 1104 effectively prevents the connecting plate 1042 or the guide rail 106 from coming off the guide slot 110 during the extension and retraction process due to vibration, impact or installation error. As a mechanical stop, the anti-detachment protrusion 1104 ensures that the connecting plate 1042 always remains in the guide slot 110, thereby improving the safety and reliability of the overall structure.

[0089] In some embodiments, optionally, the mounting groove 112 is provided on the wall surface of the first housing 1022 on the side away from the second housing 1024, including the back or side wall of the first housing 1022, i.e., the housing wall surface rotatably connected to the connecting plate 1042 of the support structure 104. The mounting groove 112 is a groove-shaped recessed structure with a groove bottom and groove walls. The groove bottom surface is flat, and its size matches the corresponding part of the support structure 104. The width and depth of the mounting groove 112 are designed to match the shape and size of the support structure 104 in the stored state to ensure a tight fit.

[0090] When the bracket structure 104 is in the retracted state, the connecting plate 1042 and its associated parts, such as the extension plate 1044, are retracted and closely fit the bottom of the mounting groove 112. When the bracket structure 104 is in the retracted state, the bracket structure is embedded or covered in the mounting groove 112, and the whole is flush with or slightly recessed from the surface of the shell.

[0091] The mounting groove 112 provides precise positioning for the support structure 104 in the storage state, preventing the support structure from loosening or shaking due to vibration during transportation, handling or use. The bottom of the groove fits into the support structure 104 to form a stable contact surface, reducing the shaking of the support structure 104 when stored and improving the overall rigidity of the structure.

[0092] When stored, the bracket structure 104 is embedded in the mounting slot 112. The bracket structure 104 is not exposed, maintaining the overall appearance of the device in a beautiful and simple manner. When stored, the bracket structure 104 does not occupy extra space, making it convenient for users to install the energy storage device 100 in limited outdoor spaces such as balconies.

[0093] Mounting slot 112 provides some physical protection for the support structure during storage, preventing collisions and damage from external forces.

[0094] Furthermore, the dimensions of the mounting slot 112 are precisely designed according to the storage dimensions of the bracket structure 104 to ensure a close fit without being too tight, leaving a small gap, such as 0.1mm to 0.3mm, for easy installation and disassembly.

[0095] In summary, the mounting slot 112, as a dedicated groove structure on the first housing 1022, not only achieves stable positioning and protection of the bracket structure 104, but also ensures the compact and aesthetically pleasing appearance of the whole machine and the high space utilization rate.

[0096] In some embodiments, optionally, such as Figure 1 As shown, the mounting groove 112 includes a fitting area 1122 and an operating area 1124. The fitting area 1122 is located in the mounting groove 112 in a region away from the ground where the device is placed. When the support structure 104 is in the retracted state, the support structure 104 is tightly fitted to the bottom of the groove in the fitting area 1122 to achieve stable storage. The operating area 1124 is located in the part of the mounting groove 112 that is close to the ground. The operating area 1124 is the operating space when the support structure 104 is in the retracted state and external force is needed to pry the support structure 104 out so that it can rotate relative to the mounting groove 112.

[0097] The rotatable connection position between the bracket structure 104 and the mounting groove 112 is located on the groove wall away from the bottom surface in the height direction of the mounting groove 112, that is, the groove wall at the highest point. One end of the bracket structure 104 (usually one end of the connecting plate 1042) is rotatably connected to the groove wall of the mounting groove 112 by means of hinges, pins, etc.

[0098] The bracket structure 104 rotates around this rotating connection point, from the extended state to the retracted state. During rotation, the far end of the bracket structure 104 approaches the fitting area 1122 at the bottom of the mounting groove 112, and finally reaches the fitting state.

[0099] In the unfolded state, the support structure 104 is in the extended state, the support leg 1046 extends, the extension plate 1044 slides out, and the support structure has no contact with the mounting groove 112 or is only connected at the rotational connection.

[0100] As the user rotates around the mounting slot 112, the rotating bracket structure 104 moves closer to the housing, and the bracket structure 104 gradually approaches the mounting slot 1122 fitting area, while the extension plate 1044 retracts.

[0101] Finally, the bracket structure 104 rotates to the storage state, and the bracket structure is tightly fitted with the bottom of the mounting groove 1122. This fitting state ensures that the bracket structure is stably and firmly stored, preventing shaking.

[0102] In some embodiments, the bracket structure 104 is optionally in a retracted state, and the side surface of the bracket structure 104 away from the bottom of the mounting groove 112 is lower than the plane where the opening of the mounting groove 112 is located.

[0103] It is understandable that the storage state is that the bracket structure 104 has been folded and retracted, and is located close to the mounting slot 112.

[0104] The side surface away from the bottom of the mounting groove 112 is the support structure surface on the side of the mounting groove 112 that is relatively far from the bottom of the groove. It is usually the support structure part on the upper part or near the side wall of the mounting groove 112.

[0105] The mounting groove 112 is the plane where the opening edge of the groove is located. When the support structure 104 is in the stored state, its height, that is, its vertical position, is lower than the height plane of the opening edge of the mounting groove 112.

[0106] Since the surface of the bracket structure is lower than the plane of the mounting groove 112, the bracket structure will not protrude from the outer surface of the mounting groove 112 after being stored, thus maintaining the flatness and aesthetics of the entire device shell. When the bracket structure is stored, it is completely or partially recessed into the mounting groove 112, avoiding the protrusion of the bracket structure edges and reducing the risk of damage to the bracket structure caused by bumps and scratches.

[0107] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0108] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0109] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0110] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An energy storage device, characterized by, include: Energy storage container; A support structure is movably connected to the outer wall of the energy storage box. The support structure includes a retracted state and at least one extended state. When the support structure is switched to any of the extended states, the support structure extends away from the outer wall of the energy storage box. When the support structure is in the retracted state, the lower edge of the support structure does not protrude from the bottom wall of the energy storage box. Wherein, the extension length of the bracket structure in the extended state is greater than the extension length of the bracket structure in the retracted state.

2. The energy storage device of claim 1, wherein, The support structure specifically includes: A connecting plate, one end of which is rotatably connected to the energy storage tank; An extension plate is slidably connected to the connecting plate, and a support foot is provided at the end of the extension plate away from the connecting plate. In the extended state, the maximum distance between the support leg and the connecting plate is greater than the maximum distance between the support leg and the connecting plate in the retracted state.

3. The energy storage device of claim 2, wherein, Also includes: A guide rail is provided on the connecting plate, and the guide rail includes a sliding hole and at least two locking holes; A slider is disposed on the extension plate, and the shape of the slider is adapted to the guide rail; The guide rail is arranged along the extension and retraction direction of the support structure.

4. The energy storage device of claim 3, wherein, The slider specifically includes an elastic base and a sliding part arranged along the thickness direction of the extension plate. The elastic base is connected to the extension plate and can extend and retract along the thickness direction of the extension plate. The outer diameter of the sliding part is smaller than the outer diameter of the elastic base. The shape of the sliding part is adapted to the shape of the sliding hole, and the shape of the elastic base is adapted to the shape of the locking hole.

5. The energy storage device of claim 4, wherein, Also includes: A button portion is located at the end of the sliding portion away from the elastic base, and the button portion is higher than the connecting plate; The outer diameter of the button portion is smaller than the outer diameter of the sliding portion.

6. The energy storage device of claim 2, wherein, Also includes: Guide slots are provided on both sides of the extension plate, and the guide slots are used to limit the lateral displacement of the connecting plate in the extension and retraction direction of the bracket structure.

7. The energy storage device of claim 6, wherein, The guide slot specifically includes: Connecting protrusions are provided on both sides of the extension plate, with the connecting protrusions located at the end of the extension plate away from the support leg; An anti-detachment protrusion is connected to the connecting protrusion, and the projection of the anti-detachment protrusion on the extension plate is located within the projection of the connecting plate on the extension plate.

8. The energy storage device of any one of claims 1-7, wherein, Also includes: An installation slot is provided on the wall surface of the energy storage box; In this configuration, the support structure is in the stowed state, and the support structure is in contact with the bottom of the mounting groove.

9. The energy storage device of claim 8, wherein, The mounting groove includes a fitting area and an operating area. The bracket structure is rotatably connected to the groove wall away from the bottom surface in the height direction. When the bracket structure is rotated to the storage state, the bracket structure fits against the bottom of the groove in the fitting area.

10. The energy storage device of claim 8, wherein, When the bracket structure is in the retracted state, the side surface of the bracket structure away from the bottom of the mounting groove is lower than the plane where the opening of the mounting groove is located.

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