Locking mechanism, energy storage device, and energy storage system

Abstract

A locking mechanism (100), an energy storage device (1000), and an energy storage system. The locking mechanism (100) is used for the energy storage device (1000); the energy storage device (1000) comprises a first box (200) and a second box (300) which are sequentially arranged in a first direction (Z); the locking mechanism (100) comprises a locking assembly (10), a limiting assembly (20) and a driving assembly (30); the locking assembly (10) is suitable for moving on the first box (200) in a second direction (X), the first direction (Z) intersecting the second direction (X); the limiting assembly (20) is arranged on the side of the locking assembly (10) away from the first box (200), and is connected and fixed to the first body (200), so that the locking assembly (10) and the first box (200) are positionally limited in the first direction (Z); the driving assembly (30) is connected to the locking assembly (10) and is suitable for moving in the first direction (Z) under the pressure of the second box (300), to push the locking assembly (10) to move in the second direction (X), so that the locking assembly (10) and the second box (300) are positionally limited in the first direction (Z), and the first box (200) and the second box (300) can be positionally limited in the first direction (Z) by means of the locking mechanism (100) during movement. No additional fixing structure is required, the installation is convenient and the structure is simple.

Description

Locking mechanism, energy storage device and energy storage system

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on March 6, 2024, with application number 202420431028.X and application name “Locking mechanism, energy storage device and energy storage system”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present disclosure relates to the field of energy storage technology, and in particular to a locking mechanism, an energy storage device, and an energy storage system. Background Art

[0003] The research and development of new and renewable energy sources, along with the search for advanced methods to improve energy efficiency, has become a primary global concern. For a major energy producer and consumer like my country, there's a need for both energy conservation and emission reduction, as well as energy growth to support economic development. This necessitates the vigorous development of the energy storage industry.

[0004] Battery energy storage is a common type of new energy storage device. It uses chemical cells to convert electrical energy into chemical energy for storage and then converts the chemical energy back into electrical energy when needed. Battery energy storage devices offer advantages such as small size, light weight, and high energy density, making them suitable for low-power applications. To increase energy storage density within limited space, stacking energy storage devices is a common method.

[0005] In the prior art, the outer side of the energy storage box is usually fastened by a plurality of screws, which causes the problem of difficulty in assembly and disassembly.

[0006] Summary of the Invention

[0007] The purpose of the present disclosure is to provide a locking mechanism, an energy storage device and an energy storage system to solve the problem in the prior art that the outer side of the energy storage box is usually fastened with a plurality of screws, which makes assembly and disassembly difficult.

[0008] In a first aspect, the present disclosure provides a locking mechanism for an energy storage device, wherein the energy storage device includes a first box body and a second box body arranged in sequence in a first direction, and the locking mechanism includes: a locking assembly suitable for moving on the first box body along a second direction, the first direction intersecting with the second direction; a limiting assembly suitable for being arranged on a side of the locking assembly away from the first box body, and being connected and fixed to the first box body so that the locking assembly and the first box body are limited in the first direction; a driving assembly connected to the locking assembly and suitable for moving along the first direction under the pressure of the second box body to push the locking assembly to move along the second direction so that the locking assembly and the second box body are limited in the first direction.

[0009] In one embodiment, the locking assembly includes a slider and a rod connected to the slider, the rod extends along the second direction, the driving assembly is slidably connected to the slider, and the rod is suitable for limiting the position of the second box in the first direction.

[0010] In one embodiment, the slider includes a guide portion, and the drive assembly is slidably connected to the guide portion; the slider has a contact surface, and the contact surface is suitable for contacting the first box body. The distance between the end of the guide portion away from the insertion rod and the contact surface in the first direction is A, and the distance between the end of the guide portion close to the insertion rod and the contact surface in the first direction is B, and A<B is satisfied.

[0011] In one embodiment, the slider further has a first surface and a second surface opposite to each other in a third direction, the guide portion is arranged on the first surface, and / or the guide portion is arranged on the second surface, and / or the guide portion is arranged between the first surface and the second surface, and the third direction intersects with both the first direction and the second direction.

[0012] In one embodiment, the guide portion is any one of a sliding groove, an inclined surface, and a protrusion.

[0013] In one embodiment, the locking mechanism also includes a positioning assembly, which includes a first positioning plate. The first positioning plate is provided with a positioning hole. The first positioning plate is suitable for being connected and fixed to the first box body, and is arranged opposite to the locking assembly in the second direction. The insertion rod is suitable for passing through the positioning hole and limiting the positioning with the second box body in the first direction.

[0014] In one embodiment, the locking assembly further includes an elastic member, which is sleeved on the insertion rod, one end of the elastic member is connected to the slider, and the other end is connected to the first positioning plate; the elastic member is suitable for elastic deformation in the second direction, and when the insertion rod passes through the positioning hole, the elastic member is in a compressed state.

[0015] In one embodiment, the driving assembly includes a pressure rod, the limiting assembly includes a first limiting plate, the first limiting plate is provided with a limiting hole, the first limiting plate is suitable for being arranged on the side of the locking assembly away from the first box body, and is connected and fixed to the first box body, the pressure rod passes through the limiting hole, and is slidably connected to the locking assembly, and the pressure rod is suitable for moving in the first direction.

[0016] In one embodiment, the driving assembly further comprises a pressure plate, the pressure plate being connected to an end of the pressure rod away from the locking assembly, and the pressure plate being adapted to move synchronously with the pressure rod in the first direction.

[0017] In the second aspect, the present disclosure also provides an energy storage device, comprising a first box body, a second box body and a locking mechanism described in any one of the various embodiments of the first aspect, the first box body and the second box body are arranged sequentially in the first direction, the locking mechanism is provided on the surface of the first box body facing the second box body, and the first box body and the second box body are suitable for limiting positioning in the first direction by the locking mechanism.

[0018] In one embodiment, a avoidance groove is provided on the surface of the second box body facing the first box body, and a snap-in hole is provided on the side wall surface of the avoidance groove. The snap-in hole is suitable for being opposite to and connected with the positioning hole of the locking mechanism in the second direction, and the locking mechanism is suitable for extending into the avoidance groove, and the insertion rod of the locking mechanism is suitable for extending into the snap-in hole. In the first direction, the maximum size of the snap-in hole is larger than the maximum size of the insertion rod.

[0019] In one embodiment, the energy storage device further includes a third box body, which is arranged on a side of the second box body away from the first box body, and the surface of the third box body facing the second box body is provided with the avoidance groove, and the surface of the second box body facing the third box body is provided with the locking mechanism, and the second box body and the third box body are suitable for limiting positioning in the first direction through the locking assembly and the avoidance groove, and there is at least one second box body.

[0020] In a third aspect, the present disclosure further provides an energy storage system, comprising an energy storage device as described in any one of the various embodiments of the second aspect, wherein a plurality of the energy storage devices are electrically connected.

[0021] By setting a locking mechanism, the locking mechanism is used for an energy storage device, the energy storage device includes a first box body and a second box body arranged in sequence in a first direction, the locking mechanism includes a locking assembly, a limiting assembly and a driving assembly, the locking assembly is suitable for moving along the second direction on the first box body, the first direction intersects with the second direction, the limiting assembly is suitable for being set on the side of the locking assembly away from the first box body, and is connected and fixed to the first box body so that the locking assembly and the first box body are limited in the first direction, the driving assembly is connected to the locking assembly, and is suitable for moving along the first direction under the pressure of the second box body to push the locking assembly to move along the second direction so that the locking assembly and the second box body are limited in the first direction, so that the first box body and the second box body can be limited in the first direction by the locking mechanism during the movement, without the need to set an additional fixing structure, easy installation, and simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] FIG1 is a structural diagram of an energy storage device according to an embodiment;

[0024] FIG2 is a cross-sectional view of an energy storage device according to an embodiment;

[0025] FIG3 is a structural diagram of an energy storage device according to another embodiment;

[0026] FIG4 is a cross-sectional view of an energy storage device according to another embodiment;

[0027] FIG5 is a structural diagram of a locking mechanism according to an embodiment;

[0028] FIG6 is a structural diagram of a locking assembly according to an embodiment;

[0029] FIG7 is a structural diagram of a locking assembly according to another embodiment;

[0030] FIG8 is a structural diagram of a drive assembly according to an embodiment;

[0031] FIG. 9 is a side view of an energy storage device according to an embodiment.

[0032] Explanation of Reference Numerals: 1000 - energy storage device; 100 - locking mechanism; 10 - locking assembly, 11 - slider, 111 - guide portion, 112 - contact surface, 113 - first surface, 114 - second surface, 12 - insertion rod, 13 - elastic member; 20 - limiting assembly, 21 - first limiting plate, 211 - limiting hole, 22 - second limiting plate, 23 - third limiting plate; 30 - driving assembly, 31 - pressure rod, 311 - main body, 312 - connecting portion, 32 - pressure plate; 40 - positioning assembly, 41 - first positioning plate, 411 - positioning hole, 42 - second positioning plate, 43 - third positioning plate; 200 - first housing, 201 - receiving space, 202 - top surface; 300 - second box, 301 - avoidance groove, 302 - snap-in hole, 303 - bottom plate, 304 - top plate, 305 - first side plate, 306 - second side plate; 400 - third box; 500 - fourth box; X - second direction, Y - third direction, Z - first direction. DETAILED DESCRIPTION

[0033] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present disclosure.

[0034] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be an intermediate component. When a component is referred to as being "connected to" another component, it may be directly connected to the other component or there may be an intermediate component.

[0035] Unless otherwise defined, all technical and scientific terms used in this disclosure have the same meanings as commonly understood by those skilled in the art to which this disclosure belongs. The terms used in this disclosure and in the specification are for the purpose of describing specific embodiments only and are not intended to limit this disclosure. The term "and / or" as used in this disclosure includes any and all combinations of one or more of the relevant listed items.

[0036] The following describes some embodiments of the present disclosure in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features therein may be combined with each other.

[0037] Please refer to Figure 1. The present disclosure provides an energy storage system (not shown), including multiple energy storage devices 1000 in the embodiments of the present disclosure, and the multiple energy storage devices 1000 are electrically connected. Optionally, the energy storage system also includes a battery (not shown), a control system (not shown) and a temperature system (not shown), and the battery is housed in the energy storage device 1000. Optionally, the battery is electrically connected to the control system, and the control system is used to control the charging and discharging of the battery and monitor the battery status information. Optionally, the control system sends the battery status information to the management personnel so that the management personnel can manage the energy storage system. Optionally, the temperature system is used to control the operating temperature of the battery to ensure that the battery is not damaged due to overcooling or overheating. Optionally, the temperature system includes a sensor (not shown), a controller (not shown), a heater (not shown) and a refrigerator (not shown). Optionally, the energy storage device 1000 in the embodiment of the present disclosure is provided with a heat dissipation channel (not shown) so that the heat generated during the operation of the battery cell can be transferred to the outside world.

[0038] The energy storage system provided by the embodiments of the present disclosure utilizes batteries, a control system, a temperature system, and the energy storage device 1000 of the embodiments of the present disclosure to achieve battery charging and discharging, status monitoring and feedback, and temperature control. This improves the practicality of the product, ensures the stability and safety of the battery, and simplifies the fixing structure of the energy storage device 1000 for ease of assembly.

[0039] Please refer to Figures 1 and 2. The present disclosure also provides an energy storage device 1000, including a first box body 200, a second box body 300 and a locking mechanism 100 in an embodiment of the present disclosure. The first box body 200 and the second box body 300 are arranged sequentially in a first direction Z. The locking mechanism 100 is provided on the surface of the first box body 200 facing the second box body 300. The first box body 200 and the second box body 300 are suitable for being limited in the first direction Z by the locking mechanism 100.

[0040] Optionally, the first direction Z can be a vertical direction, a horizontal direction, an inclined direction, etc., without limitation. The following content takes the first box body 200 and the second box body 300 stacked in the vertical direction as an example. Optionally, the first box body 200 encloses a receiving space 201, and the aforementioned battery, control system and temperature system are all contained in the receiving space 201. Optionally, the first box body 200 is made of a material that meets the structural strength requirements, is corrosion-resistant and easy to process, and can specifically be aluminum alloy, iron alloy and fiberglass, etc., without limitation. Optionally, the material used for the second box body 300 is similar to that of the first box body 200, which can be used for reference only and will not be described in detail.

[0041] Optionally, the first housing 200 includes a top surface 202 facing the second housing 300, and the locking mechanisms 100 are multiple, with the multiple locking mechanisms 100 being spaced apart on the top surface 202. Exemplarily, there are two locking mechanisms 100, each disposed at two opposing corners of the top surface 202. Exemplarily, there are four locking mechanisms 100, each disposed at the four corners of the top surface 202. Alternatively, the multiple locking mechanisms 100 may be spaced apart near the edge of the top surface 202. Alternatively, the multiple locking mechanisms 100 may be disposed in the middle of the top surface 202.

[0042] The energy storage device 1000 provided in the embodiment of the present disclosure adopts a first box body 200, a second box body 300 and a locking mechanism 100 in the embodiment of the present disclosure. The first box body 200 and the second box body 300 are arranged in sequence in the first direction Z. The locking mechanism 100 is provided on the surface of the first box body 200 facing the second box body 300. The first box body 200 and the second box body 300 are suitable for being positioned in the first direction Z by the locking mechanism 100, thereby realizing charging and discharging of the battery, state monitoring and feedback, and temperature control, improving the practicality of the product, and ensuring the stability and safety of the battery. At the same time, the first box body 200 and the second box body 300 can be directly fixed by the locking mechanism 100 without the need to set an additional fixing structure. The structure is simple and easy to assemble.

[0043] Please refer to Figures 2 and 3. The second box body 300 is provided with an avoidance groove 301 on the surface facing the first box body 200, and a snap-in hole 302 is provided on the side wall of the avoidance groove 301. The snap-in hole 302 is suitable for being opposite to and connected with the positioning hole 411 of the locking mechanism 100 in the second direction X. The locking mechanism 100 is suitable for extending into the avoidance groove 301, and the insertion rod 12 of the locking mechanism 100 is suitable for extending into the snap-in hole 302. In the first direction Z, the maximum size of the snap-in hole 302 is larger than the maximum size of the insertion rod 12.

[0044] Optionally, the surface of the first housing 200 facing away from the second housing 300 may be provided with or without a clearance groove 301, without limitation. Optionally, the second housing 300 includes a bottom plate 303, which contacts the top surface 202, with at least a portion of the bottom plate 303 being recessed inwardly from the second housing 300 in the first direction Z to form the clearance groove 301. Optionally, there may be multiple clearance grooves 301, with each of the multiple clearance grooves 301 corresponding to the multiple locking mechanisms 100 on the first housing 200.

[0045] Optionally, the avoidance groove 301 includes a top plate 304, a first side plate 305 and a second side plate 306, the bottom plate 303 is arranged opposite to the top surface 202 in the first direction Z, the first side plate 305 and the second side plate 306 are arranged opposite to each other in the second direction X, the snap-in hole 302 is opened on the second side plate 306, and the top plate 304 is used to push the pressing mechanism of the locking mechanism 100 to drive the locking assembly 10 of the locking mechanism 100 to move along the second direction X, and to limit the first direction Z with the first box body 200 and the second box body 300.

[0046] An avoidance groove 301 is provided on the surface of the second box body 300 facing the first box body 200, and a snap-in hole 302 is provided on the side wall of the avoidance groove 301. The snap-in hole 302 is opposite to and connected with the positioning hole 411 of the locking mechanism 100 in the second direction X. The locking mechanism 100 is suitable for extending into the avoidance groove 301. The insertion rod 12 of the locking mechanism 100 is arranged to extend into the snap-in hole 302. In the first direction Z, the maximum size of the snap-in hole 302 is larger than the maximum size of the insertion rod 12, so that the locking mechanism 100 can be upper-limited in the first direction Z with the second box body 300 through the insertion rod 12 and the snap-in hole 302. The structure is simple, no additional fixing structure is required, installation is convenient, and the structure is simple.

[0047] Please refer to Figure 4. The energy storage device 1000 also includes a third box body 400. The third box body 400 is arranged on a side of the second box body 300 away from the first box body 200. The surface of the third box body 400 facing the second box body 300 is provided with an avoidance groove 301. The surface of the second box body 300 facing the third box body 400 is provided with a locking mechanism 100. The second box body 300 and the third box body 400 are suitable for being limited in the first direction Z by the locking mechanism 100 and the avoidance groove 301. There is at least one second box body 300.

[0048] Optionally, multiple second boxes 300 are arranged sequentially in the first direction Z. Optionally, the surface of the third box 400 facing away from the second box 300 may or may not be provided with a locking mechanism 100, without limitation. Optionally, the third box 400 may have multiple avoidance grooves 301, with the multiple avoidance grooves 301 corresponding one-to-one with the multiple locking mechanisms 100 on the second box 300. Optionally, the material of the third box 400 is similar to that of the first box 200, for reference only and without limitation.

[0049] By setting a third box body 400, the third box body 400 is set on the side of the second box body 300 away from the first box body 200, and the surface of the third box body 400 facing the second box body 300 is provided with an avoidance groove 301, and the surface of the second box body 300 facing the third box body 400 is provided with a locking mechanism 100. The second box body 300 and the third box body 400 are suitable for being limited in the first direction Z by the locking mechanism 100 and the avoidance groove 301. There is at least one second box body 300, so that the energy storage device 1000 can store more energy. At the same time, the third box body 400 and the second box body 300 are directly fixed by the locking mechanism 100, which is convenient to install and has a simple structure.

[0050] Please refer to Figure 5. The present disclosure also provides a locking mechanism 100 for an energy storage device 1000. The energy storage device 1000 includes a first box body 200 and a second box body 300 arranged in sequence in a first direction Z. The locking mechanism 100 includes a locking assembly 10, a limiting assembly 20 and a driving assembly 30.

[0051] The locking assembly 10 is adapted to move along the second direction X on the first housing 200, where the first direction Z intersects the second direction X. Optionally, the locking mechanism 100, driven by a pressing mechanism, partially extends into the aforementioned engaging hole 302 to engage and secure the second housing 300. Optionally, the locking mechanism 100 can be made of a material that meets structural strength requirements, is corrosion-resistant, and is easily machined, specifically aluminum alloy, iron alloy, and plastic, without limitation.

[0052] The limit assembly 20 is adapted to be disposed on a side of the locking assembly 10 away from the first housing 200 and is fixedly connected to the first housing 200 to limit the locking assembly 10 and the first housing 200 in the first direction Z. Optionally, the limit assembly 20 and the first housing 200 may be integrally formed or removably connected via a snap connection, screw connection, or riveting, without limitation. Optionally, the material of the limit assembly 20 is similar to that of the aforementioned locking assembly 10, which is readily apparent and will not be further described.

[0053] The drive assembly 30 is connected to the locking assembly 10 and is adapted to move in the first direction Z under pressure from the second housing 300 to push the locking assembly 10 in the second direction X, thereby limiting the locking assembly 10 and the second housing 300 in the first direction Z. Alternatively, the drive assembly 30 and the locking assembly 10 may be connected via structures such as guide rails, rack and pinion gears, and magnets, without limitation. Alternatively, the drive assembly 30 may be made of a material similar to that of the locking assembly 10, for reference only and without limitation.

[0054] By setting a locking mechanism 100, the locking mechanism 100 is used for the energy storage device 1000, the energy storage device 1000 includes a first box body 200 and a second box body 300 arranged in sequence in a first direction Z, the locking mechanism 100 includes a locking assembly 10, a limiting assembly 20 and a driving assembly 30, the locking assembly 10 is suitable for moving along the second direction X on the first box body 200, the first direction Z intersects with the second direction X, the limiting assembly 20 is suitable for being arranged on a side of the locking assembly 10 away from the first box body 200, and is connected and fixed to the first box body 200 so that the locking assembly 10 and the first box body 200 are limited in the first direction Z, the driving assembly 30 is connected to the locking assembly 10, and is suitable for being pressed under the pressure of the second box body 300. Move along the first direction Z to push the locking assembly 10 to move along the second direction X, so that the locking assembly 10 and the second box body 300 are limited in the first direction Z. Compared with the solution of fixing the sides of the first box body 200 and the second box body 300 with screws or other structures, this solution adopts the locking assembly 10 to be set between the first box body 200 and the second box body 300. When the second box body 300 is close to the first box body 200, it can push the driving assembly 30 to drive the locking assembly 10 and the second box body 300 to be limited in the first direction Z, so that the first box body 200 and the second box body 300 can be limited in the first direction Z by the locking mechanism 100 during the movement, without the need to set an additional fixing structure, easy installation, and simple structure.

[0055] Please refer to Figure 5, the locking assembly 10 includes a slider 11 and a rod 12 connected to the slider 11, the rod 12 extends along the second direction X, the driving assembly 30 is slidably connected to the slider 11, and the rod 12 is suitable for limiting the position with the second box body 300 in the first direction Z.

[0056] Optionally, there may be multiple rods 12, which are spaced apart on the same side of the slider 11. Optionally, the slider 11 and the rod 12 may be an integrated structure, or may be detachably connected by means of snap connection, screw connection, welding, etc., without limitation.

[0057] Optionally, the edges of the slider 11 are rounded to prevent sharp edges of the slider 11 from causing mechanical damage to the first and second housings 200, 300, and the operator. Alternatively, referring to Figures 6 and 7, in orthographic projection along the second direction X, the cross-sectional shape of the plunger 12 can be circular, rectangular, elliptical, or non-circular, without limitation.

[0058] By providing a slider 11 and an insertion rod 12 connected to the slider 11, the insertion rod 12 extends along the second direction X, the driving assembly 30 is slidably connected to the slider 11, and the insertion rod 12 is suitable for being limited in the first direction Z with the second box body 300, so that the insertion rod 12 can move along the second direction X under the drive of the pressing mechanism, and extend into the aforementioned snap-in hole 302 and be limited in the first direction Z with the second box body 300, without the need to provide an additional fixing structure, easy installation, and simple structure.

[0059] Please refer to Figures 5 and 6. The slider 11 includes a guide portion 111, and the drive assembly 30 is slidably connected to the guide portion 111. The slider 11 has a contact surface 112, and the contact surface 112 is suitable for contacting the first box body 200. The distance between the end of the guide portion 111 away from the insertion rod 12 and the contact surface 112 in the first direction Z is A, and the distance between the end of the guide portion 111 close to the insertion rod 12 and the contact surface 112 in the first direction Z is B, and A<B is satisfied.

[0060] Optionally, the included angle between the guide portion 111 and the contact surface 112 is C, and satisfies 0°<C<90°, and can be 30°, 45°, 60°, etc., without limitation. Optionally, there can be multiple guide portions 111, and the multiple guide portions 111 are arranged at intervals and extend in the same direction.

[0061] By setting the guide part 111, the driving component 30 is slidably connected to the guide part 111, and the slider 11 has a contact surface 112, which is suitable for contacting the first box body 200. The distance between the end of the guide part 111 away from the insertion rod 12 and the contact surface 112 in the first direction Z is A, and the distance between the end of the guide part 111 close to the insertion rod 12 and the contact surface 112 in the first direction Z is B, and A<B is satisfied, so that when the driving component 30 approaches the locking component 10 along the first direction Z, the driving component 30 can provide a thrust along the second direction X to the locking component 10 through the guide part 111, so that the locking component 10 can move along the second direction X. At the same time, when the locking component 10 exits the aforementioned engaging hole 302 along the second direction X, the slider 11 can provide a thrust along the first direction Z to the driving component 30 through the guide part 111, so that the driving component 30 rises for the next installation.

[0062] Please refer to Figure 5, the slider 11 also has a first surface 113 and a second surface 114 opposite to each other in the third direction Y, the guide portion 111 is arranged on the first surface 113, and / or, the guide portion 111 is arranged on the second surface 114, and / or, the guide portion 111 is arranged between the first surface 113 and the second surface 114, and the third direction Y intersects with both the first direction Z and the second direction X.

[0063] Alternatively, the guide portion 111 may be disposed on the surface of the slider 11 facing away from the contact surface 112, or on the surface of the slider 11 facing away from the insertion rod 12, without limitation. Alternatively, the guide portion 111 may connect the surface of the slider 11 facing away from the contact surface 112 and the contact surface 112, or connect the surface of the slider 11 facing away from the contact surface 112 and the surface of the slider 11 facing away from the insertion rod 12, without limitation.

[0064] By setting the first surface 113 and the second surface 114 relative to each other in the third direction Y, the guide portion 111 is set on the first surface 113, and / or the guide portion 111 is set on the second surface 114, and / or the guide portion 111 is set between the first surface 113 and the second surface 114, the third direction Y intersects with the first direction Z and the second direction X, so that the driving component 30 can be stably connected to the slider 11 and provide a uniform thrust to the slider 11, thereby preventing the slider 11 from getting stuck in movement and damaging the locking component 10.

[0065] Referring to Figure 5 , guide portion 111 can be any of a slot, an inclined surface, or a protrusion. Optionally, when guide portion 111 is a slot, guide portion 111 can extend from the aforementioned first surface 113, and / or second surface 114, and / or the surface of slider 11 facing away from contact surface 112, and / or the surface of slider 11 facing away from insertion rod 12, toward the interior of the slider. Optionally, when guide portion 111 is a slot, guide portion 111 can extend through other surfaces to engage with drive assembly 30.

[0066] Optionally, when the guide portion 111 is an inclined surface, the guide portion 111 may connect the surface of the slider 11 facing away from the insertion rod 12 and the surface of the slider 11 facing away from the contact surface 112, or may connect the surface of the slider 11 facing away from the insertion rod 12 and the surface of the guide portion 111 connected to the insertion rod 12, without limitation. Optionally, when the guide portion 111 is a protrusion, the guide portion 111 may be provided on the first surface 113, and / or the second surface 114, and / or the surface of the slider 11 facing away from the contact surface 112, and / or the surface of the slider 11 facing away from the insertion rod 12, without limitation.

[0067] By setting the guide portion 111 to be any one of a slide groove, an inclined surface, and a protrusion, the structure of the guide portion 111 is diversified, and structures such as a slide groove, an inclined surface, and a protrusion can be used in different application scenarios, thereby improving the practicality of the locking mechanism 100.

[0068] Referring to Figures 1 and 9 , the locking mechanism 100 further includes a positioning assembly 40, which includes a first positioning plate 41 having a positioning hole 411 defined therein. The first positioning plate 41 is adapted to be connected and fixed to the first housing 200 and is disposed opposite the locking assembly 10 in the second direction X. The insertion rod 12 is adapted to penetrate the positioning hole 411 and be positioned relative to the second housing 300 in the first direction Z. Optionally, the positioning hole 411 extends along the second direction X and connects two opposing surfaces of the first positioning plate 41 in the second direction X.

[0069] Optionally, the first positioning plate 41 and the first box body 200 can be an integral structure, or they can be detachably connected by means of snap-fitting, screwing and riveting, without limitation. Optionally, the locking mechanism 100 also includes a second positioning plate 42 and a third positioning plate 43, and the second positioning plate 42 and the third positioning plate 43 are arranged relative to each other in the third direction Y, and are connected to the side of the first positioning plate 41 facing the locking mechanism 100. Optionally, the first positioning plate 41, the second positioning plate 42 and the third positioning plate 43 are all suitable for extending into the aforementioned avoidance groove 301. Optionally, the second positioning plate 42 and the third positioning plate 43 and the first positioning plate 41 can be an integral structure, or they can be detachably connected by means of snap-fitting, screwing and riveting, without limitation. Optionally, the materials of the first positioning plate 41, the second positioning plate 42 and the third positioning plate 43 are similar to the materials of the aforementioned first box body 200, and can be used for reference only and will not be described in detail.

[0070] By setting a positioning component 40, the positioning component 40 includes a first positioning plate 41, and the first positioning plate 41 is provided with a positioning hole 411. The first positioning plate 41 is suitable for being connected and fixed with the first box body 200, and is arranged opposite to the locking component 10 in the second direction X. The insertion rod 12 is suitable for passing through the positioning hole 411 and being positioned with the second box body 300 in the first direction Z, so that the locking mechanism 100 can be clamped and fixed with the first box body 200, which facilitates the accurate connection between the first box body 200 and the second box body 300 in the first direction Z, and at the same time enhances the connection stability of the first box body 200 and the second box body 300, preventing the first box body 200 and the second box body 300 from being offset or detached.

[0071] Referring to Figures 1 and 5 , the locking assembly 10 further includes an elastic member 13, which is sleeved over the insertion rod 12. One end of the elastic member 13 is connected to the slider 11, and the other end is connected to the first positioning plate 41. The elastic member 13 is adapted to elastically deform in the second direction X. When the insertion rod 12 passes through the positioning hole 411, the elastic member 13 is in a compressed state. Alternatively, the elastic member 13 may be a spring, a gas rod, a hydraulic rod, or the like, without limitation. Alternatively, there may be multiple elastic members 13, each corresponding to the aforementioned insertion rods 12.

[0072] By setting an elastic member 13, the elastic member 13 is sleeved on the insertion rod 12, one end of the elastic member 13 is connected to the slider 11, and the other end is connected to the first positioning plate 41. The elastic member 13 is suitable for elastic deformation in the second direction X. When the insertion rod 12 penetrates the positioning hole 411, the elastic member 13 is in a compressed state, so that when the second box body 300 moves away from the first box body 200, the second box body 300 begins to stop providing pressure to the driving component 30, and at the same time, the insertion rod 12 withdraws from the aforementioned clamping hole 302 under the push of the elastic member 13, and the locking effect of the locking component 10 on the second box body 300 is released, so that the second box body 300 can be detached from the first box body 200, and disassembly is simple.

[0073] Referring to Figures 1, 5, 8, and 9, the drive assembly 30 includes a pressure rod 31, and the limiting assembly 20 includes a first limiting plate 21. The first limiting plate 21 defines a limiting hole 211. The first limiting plate 21 is adapted to be disposed on a side of the locking assembly 10 away from the first housing 200 and is fixedly connected to the first housing 200. The pressure rod 31 passes through the limiting hole 211 and is slidably connected to the locking assembly 10. The pressure rod 31 is adapted to move in a first direction Z. Optionally, the limiting hole 211 extends along the first direction Z and connects two opposing surfaces of the first limiting plate 21 in the first direction Z.

[0074] Optionally, the compression rod 31 includes a main body 311 and a connecting portion 312. The main body 311 extends along the first direction Z and is provided with a limiting hole 211. The connecting portion 312 is connected to an end of the main body 311 proximal to the locking assembly 10 and is slidably connected to the aforementioned guide portion 111. Optionally, there are multiple compression rods 31, with the multiple compression rods 31 arranged at intervals. Optionally, there are also multiple limiting holes 211, with the multiple limiting holes 211 corresponding to the multiple compression rods 31.

[0075] Optionally, the locking mechanism 100 also includes a second limit plate 22 and a third limit plate 23, which are arranged relative to each other in the third direction Y and are connected to the side of the first limit plate 21 facing the first box body 200. The aforementioned slider 11 is located between the first limit plate 21, the second limit plate 22 and the third limit plate 23, so that the locking assembly 10 can only move along the second direction X, and will not move in the first direction Z and the third direction Y.

[0076] Optionally, the first limiting plate 21 and the first housing 200 may be integrally formed, or may be detachably connected by means of a snap connection, screw connection, or riveting, without limitation. Optionally, the second limiting plate 22 and the third limiting plate 23 may be integrally formed, or may be detachably connected by means of a snap connection, screw connection, or riveting, without limitation. Optionally, the materials of the first limiting plate 21, the second limiting plate 22, and the third limiting plate 23 are similar to those of the first housing 200 described above, and reference can be made thereto without further explanation.

[0077] By setting a pressure rod 31 and a first limiting plate 21, the first limiting plate 21 is provided with a limiting hole 211, the first limiting plate 21 is suitable for being set on the side of the locking assembly 10 away from the first box body 200, and is connected and fixed to the first box body 200, the pressure rod 31 passes through the limiting hole 211, and is slidably connected to the locking assembly 10, the pressure rod 31 is suitable for moving in the first direction Z, so that the pressure rod 31 can only slide along the first direction Z under the limiting action of the limiting hole 211, and will not move along the second direction X with the locking assembly 10, and at the same time the first limiting plate 21 can prevent the slider 11 and the pressure rod 31 from separating from the first box body 200 in the first direction Z, thereby ensuring the connection stability of the locking mechanism 100 and the first box body 200.

[0078] Referring to Figures 1, 5, and 8, the drive assembly 30 further includes a pressure plate 32, which is connected to the end of the pressure rod 31 away from the locking assembly 10. The pressure plate 32 is adapted to move synchronously with the pressure rod 31 in a first direction Z. Optionally, the connection between the adjacent outer wall surfaces of the pressure plate 32 is rounded to prevent sharp portions of the pressure plate 32 from injuring the operator and the second housing 300. Optionally, the pressure plate 32 and the pressure rod 31 may be integrally formed or detachably connected by means of a snap connection, screw connection, or riveting, without limitation.

[0079] By setting a pressure plate 32, the pressure plate 32 is connected to the end of the pressure rod 31 away from the locking assembly 10. The pressure plate 32 is suitable for moving synchronously with the pressure rod 31 in the first direction Z, so that the second box body 300 can drive the pressure rod 31 to move in the first direction Z by pushing the pressure plate 32, so that the thrust provided by the second box body 300 to the driving assembly 30 is more uniform and stable, preventing the pressure rod 31 from being directly released from the second box body 300 and causing displacement and breakage.

[0080] In the description of the embodiments of the present disclosure, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", and "outside" are based on the orientation or positional relationship of the accompanying drawings, which is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0081] The above disclosure is only a preferred embodiment of the present disclosure, and it is certainly not intended to limit the scope of the rights of the present disclosure. A person skilled in the art can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present disclosure are still within the scope of the present disclosure.

Claims

1. A locking mechanism for an energy storage device (1000), the energy storage device (1000) comprising a first box (200) and a second box (300) arranged in sequence in a first direction (Z), the locking mechanism (100) comprising: A locking assembly (10) adapted to move on the first box (200) along a second direction (X), wherein the first direction (Z) intersects with the second direction (X); a limiting assembly (20), adapted to be arranged on a side of the locking assembly (10) away from the first box (200), and to be connected and fixed to the first box (200), so as to limit the locking assembly (10) and the first box (200) in the first direction (Z); A driving assembly (30) is connected to the locking assembly (10) and is adapted to move along the first direction (Z) under the pressure of the second box (300) to push the locking assembly (10) to move along the second direction (X) so that the locking assembly (10) and the second box (300) are limited in the first direction (Z).

2. The locking mechanism according to claim 1, wherein the locking assembly (10) includes a slider (11) and an insertion rod (12) connected to the slider (11), the insertion rod (12) extends along the second direction (X), the driving assembly (30) is slidingly connected to the slider (11), and the insertion rod (12) is suitable for upper limiting position with the second box (300) in the first direction (Z).

3. The locking mechanism according to claim 2, wherein the slider (11) comprises a guide portion (111), and the drive assembly (30) is slidably connected to the guide portion (111); The slider (11) has a contact surface (112), and the contact surface (112) is suitable for contacting the first box (200). The distance between the end of the guide portion (111) away from the insertion rod (12) and the contact surface (112) in the first direction (Z) is A, and the distance between the end of the guide portion (111) close to the insertion rod (12) and the contact surface (112) in the first direction (Z) is B, and A<B is satisfied.

4. The locking mechanism according to claim 3, wherein the slider (11) further has a first surface (113) and a second surface (114) opposite to each other in a third direction (Y), the guide portion (111) is arranged on the first surface (113), and / or the guide portion (111) is arranged on the second surface (114), and / or the guide portion (111) is arranged between the first surface (113) and the second surface (114), and the third direction (Y) intersects with both the first direction (Z) and the second direction (X).

5. The locking mechanism according to claim 3, wherein the guide portion (111) is any one of a sliding groove, an inclined surface, and a protrusion.

6. The locking mechanism according to claim 2, wherein the locking mechanism (100) further includes a positioning assembly (40), the positioning assembly (40) includes a first positioning plate (41), the first positioning plate (41) is provided with a positioning hole (411), the first positioning plate (41) is suitable for being connected and fixed with the first box body (200), and is arranged relative to the locking assembly (10) in the second direction (X), and the insertion rod (12) is suitable for passing through the positioning hole (411) and being limited in the first direction (Z) with the second box body (300).

7. The locking mechanism according to claim 6, wherein the locking assembly (10) further comprises an elastic member (13), wherein the elastic member (13) is sleeved on the insertion rod (12), and one end of the elastic member (13) is connected to the slider (11), and the other end is connected to the first positioning plate (41); The elastic member (13) is suitable for elastic deformation in the second direction (X), and when the insertion rod (12) passes through the positioning hole (411), the elastic member (13) is in a compressed state.

8. According to the locking mechanism according to any one of claims 1 to 7, the driving assembly (30) includes a pressure rod (31), the limiting assembly (20) includes a first limiting plate (21), the first limiting plate (21) is provided with a limiting hole (211), the first limiting plate (21) is suitable for being arranged on the side of the locking assembly (10) away from the first box body (200), and is connected and fixed to the first box body (200), the pressure rod (31) passes through the limiting hole (211), and is slidably connected to the locking assembly (10), and the pressure rod (31) is suitable for moving in the first direction (Z).

9. According to the locking mechanism according to claim 8, the driving assembly (30) further includes a pressure plate (32), the pressure plate (32) is connected to an end of the pressure rod (31) away from the locking assembly (10), and the pressure plate (32) is suitable for moving synchronously with the pressure rod (31) in the first direction (Z).

10. An energy storage device, comprising a first box (200), a second box (300) and a locking mechanism (100) according to any one of claims 1 to 9, wherein the first box (200) and the second box (300) are arranged in sequence in the first direction (Z), the locking mechanism (100) is provided on the surface of the first box (200) facing the second box (300), and the first box (200) and the second box (300) are suitable for being limited in the first direction (Z) by the locking mechanism (100).

11. The energy storage device according to claim 10, wherein the second box body (300) is provided with an avoidance groove (301) on the surface facing the first box body (200), and the side wall surface of the avoidance groove (301) is provided with a snap-in hole (302), and the snap-in hole (302) is suitable for being opposite to and connected with the positioning hole (411) of the locking mechanism (100) in the second direction (X), and the locking mechanism (100) is suitable for extending into the avoidance groove (301), and the insertion rod (12) of the locking mechanism (100) is suitable for extending into the snap-in hole (302), and in the first direction (Z), the maximum size of the snap-in hole (302) is larger than the maximum size of the insertion rod (12).

12. The energy storage device according to claim 11, wherein the energy storage device (1000) further comprises a third box (400), wherein the third box (400) is arranged on a side of the second box (300) away from the first box (200), and the surface of the third box (400) facing the second box (300) is provided with the avoidance groove (301), and the surface of the second box (300) facing the third box (400) is provided with the locking mechanism (100), and the second box (300) and the third box (400) are suitable for being limited in the first direction (Z) by the locking assembly (10) and the avoidance groove (301), and there is at least one second box (300).

13. An energy storage system comprising a plurality of energy storage devices (1000) according to any one of claims 10 to 12, wherein the plurality of energy storage devices (1000) are electrically connected.

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