Battery storage device and battery storage system

Abstract

The utility model discloses a battery storage device and a battery storage system.The battery storage device comprises a box body, a hinge mechanism and a baffle, the box body is used for containing a battery device, and an opening is formed in the box body; the hinge mechanism comprises a first hinge, a second hinge and a hot melting part, the first hinge comprises a first hinge body and a fixing shaft, and the first hinge body is fixed to the top of the box body; the second hinge comprises a second hinge body and a rotating shaft, and the rotating shaft is arranged on the periphery of the fixed shaft in a sleeving mode; the hot melting part is arranged between the rotating shaft and the fixed shaft; the baffle is fixed to the second hinge body and used for covering the opening under the condition that the hot melting part is melted. The storage safety performance of the battery device is improved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery storage device and a battery storage system. Background Art

[0002] In recent years, with the rapid development of new energy technology, new energy vehicles have been used more and more widely, gradually replacing traditional fuel vehicles and becoming one of the mainstream means of transportation. As the power source of new energy vehicles, power batteries are one of the core devices of new energy vehicles.

[0003] In the development of battery technology, how to improve the storage safety performance of battery devices is a research direction in battery technology. Utility Model Content

[0004] Embodiments of the present application provide a battery storage device and a battery storage system, which can improve the storage safety performance of the battery device.

[0005] In the first aspect, an embodiment of the present application provides a battery storage device, which includes a box, a hinge mechanism and a baffle. The box is used to accommodate the battery device, and the box has an opening; the hinge mechanism includes a first hinge, a second hinge and a hot melt portion, the first hinge includes a first hinge body and a fixed shaft, and the first hinge body is fixed to the top of the box; the second hinge includes a second hinge body and a rotating shaft, and the rotating shaft is sleeved on the outer periphery of the fixed shaft; the hot melt portion is arranged between the rotating shaft and the fixed shaft; the baffle is fixed to the second hinge body, and the baffle is used to cover the opening when the hot melt portion is melted.

[0006] In the above scheme, under normal conditions, the hot melt portion is solid, the rotating portion is bonded to the fixed shaft through the hot melt portion, the rotating portion cannot rotate, and the baffle does not cover the opening, which is convenient for taking and placing the battery device. If the battery device has thermal runaway, the high temperature will melt the hot melt portion of the hinge mechanism, and the rotating portion can rotate relative to the fixed shaft. Since the first hinge body is fixed to the top of the box, the baffle rotates downward under the action of gravity to cover the opening, isolating the oxygen outside the box from entering the inside of the box, thereby preventing the thermal runaway from further deteriorating to a certain extent and improving the storage safety performance of the battery device.

[0007] In some embodiments, the melting temperature of the hot melt portion is greater than or equal to 70°C and less than or equal to 100°C.

[0008] In the above solution, by limiting the melting temperature of the hot-melt portion within a suitable range, it can be ensured to a certain extent that the hot-melt portion can melt when thermal runaway occurs in the battery device.

[0009] In some embodiments, the melting temperature of the hot melt portion is less than or equal to 80°C.

[0010] In the above solution, it is further ensured that the hot melt portion can melt when thermal runaway occurs in the battery device.

[0011] In some embodiments, the box body includes a bottom plate and a top plate, the bottom plate is used to support the battery device; the bottom plate and the top plate are arranged at a relative interval, the opening is located between the bottom plate and the top plate, and the first hinge body is arranged at a position on the top plate close to the opening.

[0012] In the above solution, by arranging the first hinge body at a position of the top plate close to the opening, when the hot-melt portion is melted by high temperature, the baffle plate can fall downward due to gravity to close the opening.

[0013] In some embodiments, there are multiple hinge mechanisms, and the multiple hinge mechanisms are respectively arranged on the box body at intervals.

[0014] In the above solution, by arranging a plurality of hinge mechanisms at intervals on the box body, the stability of the baffle when it falls can be improved.

[0015] In some embodiments, the hot melt portion is disposed around the outer circumference of the fixed shaft.

[0016] In the above solution, by arranging the hot-melt portion around the outer circumference of the fixed shaft, the area of ​​the hot-melt portion can be increased, so that the baffle will not fall off in a normal state.

[0017] In some embodiments, the fixed shaft includes a shaft body and a blocking portion arranged on the shaft body, and the first hinge body is connected to the blocking portion; the rotating shaft includes a plurality of rotating portions arranged at intervals along its axial direction, and a blocking portion is arranged on adjacent rotating portions.

[0018] In the above solution, the stability of the hinge mechanism during rotation can be improved by setting the rotation part and the blocking part at a distance.

[0019] In some embodiments, the box body is provided with a magnet portion at the edge of the opening, and the baffle is a metal plate; or, the baffle is provided with a magnet portion at the edge corresponding to the opening, and the box body is a metal box; or, the box body is provided with a first magnet portion at the edge of the opening, and the baffle is provided with a second magnet portion at the edge corresponding to the opening, and the polarity of the first magnet portion is opposite to that of the second magnet portion.

[0020] In the above solution, when the baffle falls to the opening of the box body, it is attracted by the magnet, which can improve the sealing performance of the battery storage device when thermal runaway occurs in the battery device.

[0021] In some embodiments, the battery storage device further includes a buffer portion, which is disposed at an edge of the opening of the box body and / or an edge of the opening corresponding to the baffle.

[0022] In the above solution, when the baffle falls to the opening of the box, the buffer portion can reduce the risk of the baffle or the box being damaged by collision, thereby increasing the life of the battery storage device.

[0023] In a second aspect, an embodiment of the present application provides a battery storage system, comprising a battery storage device according to any of the above embodiments.

[0024] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 A schematic diagram of the structure of a vehicle according to some embodiments of the present application;

[0027] Figure 2 An exploded view of a battery device according to some embodiments of the present application;

[0028] Figure 3 A schematic diagram of the structure of a battery module according to some embodiments of the present application;

[0029] Figure 4 A schematic diagram of the exploded structure of a battery cell according to some embodiments of the present application;

[0030] Figure 5 is a schematic structural diagram of a battery storage device in some embodiments of the present application;

[0031] Figure 6 is a schematic structural diagram of another state of a battery storage device in some embodiments of the present application;

[0032] Figure 7 is a side view of a hinge mechanism of some embodiments of the present application;

[0033] Figure 8 is a side view of a battery storage device according to some embodiments of the present application;

[0034] Fig. 9 is a schematic diagram of the structure of the hinge mechanism of some embodiments of the present application;

[0035] Fig.10is a schematic structural diagram of a battery storage device in some other embodiments of the present application;

[0036] Fig.11 is a schematic structural diagram of a battery storage device in some other embodiments of the present application;

[0037] Fig.12 is a schematic structural diagram of a battery storage device according to some further embodiments of the present application;

[0038] Fig.13 Schematic diagram of the structure of battery storage devices according to some other embodiments of the present application.

[0039] Description of reference numerals:

[0040] 1000, vehicle; 100, battery device; 200, controller; 300, motor; 10, upper cover; 30, lower cover; 400, battery module; 20, battery cell; 21, end cover; 22, shell; 23, electrode assembly; 26, electrode terminal; 500, battery storage device; 40, box; 41, opening; 42, bottom plate; 43, top plate; 44, magnet part; 45, first magnet part; 50, hinge mechanism; 51, first hinge; 511, first hinge body; 512, fixed axis; 513, axis body; 514, barrier part; 52, second hinge; 521, second hinge body; 522, rotating axis; 523, rotating part; 53, hot melt part; 60, baffle; 61, second magnet part; 70, buffer part. DETAILED DESCRIPTION

[0041] The following detailed description and drawings of the embodiments of the present application are used to illustrate the principles of the present application, but cannot be used to limit the scope of the present application, that is, the present application is not limited to the described embodiments.

[0042] In the description of the present application, it should be noted that, unless otherwise specified, "multiple" means more than two; the terms "upper", "lower", "left", "right", "inside", "outside", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present application and simplifying the description, and do 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 application. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. "Vertical" is not strictly vertical, but is within the allowable error range. "Parallel" is not strictly parallel, but is within the allowable error range.

[0043] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0044] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of this application. In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0045] In the present application, battery cells may include lithium-ion secondary battery cells, lithium-ion primary battery cells, lithium-sulfur battery cells, sodium-lithium-ion battery cells, sodium-ion battery cells or magnesium-ion battery cells, etc., and the embodiments of the present application do not limit this. Battery cells may be cylindrical, flat, rectangular or other shapes, etc., and the embodiments of the present application do not limit this. Battery cells are generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells and soft-pack battery cells, and the embodiments of the present application do not limit this.

[0046] The battery device mentioned in the embodiments of the present application may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly may include a plurality of battery cells, and the plurality of battery cells are connected in series, in parallel or in mixed connection through a busbar.

[0047] In some embodiments, the battery cell assembly is generally formed by arranging a plurality of battery cells; as an example, the battery cell assembly may be a battery module, which is formed by arranging and fixing a plurality of battery cells to form an independent module. As an example, the battery module may be formed by bundling a plurality of battery cells by a cable tie.

[0048] In some embodiments, the battery device may be a battery pack, which includes a case and one or more battery cell assemblies, wherein the battery cell assemblies are accommodated in the case.

[0049] As an example, the battery cell assembly may be a battery module, and the battery cell assembly may be accommodated in the box by fixing the battery module in the box.

[0050] As an example, the battery cell assembly may also be housed in the case by directly fixing a plurality of battery cells to the case.

[0051] The embodiment of the present application provides an electric device using a battery as a power source, and the electric device may be, but is not limited to, a mobile phone, a tablet, a laptop, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, etc. Among them, the electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, etc., and the spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, etc.

[0052] Battery storage devices are generally equipped with openings as the required passages for the battery devices to enter and exit, which can be considered to be in a semi-open space. When the battery device has an unexpected thermal runaway, the external environment will provide a steady stream of oxygen, increasing the risk of uncontrolled fire, thereby worsening storage safety and reducing the storage safety performance of the battery device.

[0053] At present, due to the heightening of the battery box, the battery cells need to adopt a multi-layer design inside the box. In order to meet the strength requirements, profile plates need to be added between the battery cells in different layers to strengthen the vertical strength between the battery cells, and heat exchange components are also required to exchange heat between the battery cells, which leads to low space utilization inside the battery device and reduces the energy density.

[0054] In order to solve the above technical problems, an embodiment of the present application provides a battery storage device, which includes a box body, a hinge mechanism and a baffle. The box body is used to accommodate the battery device, and the box body is provided with an opening; the hinge mechanism includes a first hinge, a second hinge and a hot melt portion, the first hinge includes a first hinge body and a fixed shaft, and the first hinge body is fixed to the top of the box body; the second hinge includes a second hinge body and a rotating shaft, and the rotating shaft is sleeved on the outer periphery of the fixed shaft; the hot melt portion is arranged between the rotating shaft and the fixed shaft; the baffle is fixed to the second hinge body, and the baffle is used to cover the opening when the hot melt portion is melted.

[0055] In the above scheme, under normal conditions, the hot melt portion is solid, the rotating portion is bonded to the fixed shaft through the hot melt portion, the rotating portion cannot rotate, and the baffle does not cover the opening, which is convenient for taking and placing the battery device. If the battery device has thermal runaway, the high temperature will melt the hot melt portion of the hinge mechanism, and the rotating portion can rotate relative to the fixed shaft. Since the first hinge body is fixed to the top of the box, the baffle rotates downward under the action of gravity to cover the opening, isolating the oxygen outside the box from entering the inside of the box, thereby preventing the thermal runaway from further deteriorating to a certain extent and improving the storage safety performance of the battery device.

[0056] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device according to an embodiment of the present application.

[0057] Please refer to Figure 1 , Figure 1 A schematic diagram of the structure of a vehicle provided for some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery device 100 is provided inside the vehicle 1000, and the battery device 100 may be provided at the bottom, head or tail of the vehicle 1000. The battery device 100 may be used to power the vehicle 1000, for example, the battery device 100 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, and the controller 200 is used to control the battery device 100 to power the motor 300, for example, for starting, navigating and driving the vehicle 1000.

[0058] In some embodiments of the present application, the battery device 100 can not only serve as an operating power source for the vehicle 1000, but also serve as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0059] Please refer to Figure 2 , Figure 2 An exploded view of a device provided for some embodiments of the present application. The battery device 100 includes a battery case and a battery cell 20. In some embodiments, the battery case may include an upper cover 10 and a lower cover 30, the upper cover 10 and the lower cover 30 are covered with each other, and the upper cover 10 and the lower cover 30 jointly define a receiving cavity for accommodating the battery cell 20. The lower cover 30 may be a hollow structure with one end open, and the upper cover 10 may be a plate-like structure, and the upper cover 10 is covered on the open side of the lower cover 30, so that the upper cover 10 and the lower cover 30 jointly define a receiving cavity; the upper cover 10 and the lower cover 30 may also be hollow structures with one side open, and the open side of the upper cover 10 is covered on the open side of the lower cover 30. Of course, the battery case formed by the upper cover 10 and the lower cover 30 may be in a variety of shapes, such as a cylinder, a cuboid, etc.

[0060] Figure 3 This is a schematic diagram of the structure of the battery module of some embodiments of the present application. In the battery device 100, there can be multiple battery cells 20, and the multiple battery cells 20 can be connected in series, in parallel, or in a mixed connection. Mixed connection means that the multiple battery cells 20 are both connected in series and in parallel. The multiple battery cells 20 can be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple battery cells 20 is accommodated in a box; of course, the battery device 100 can also be in the form of multiple battery cells 20 first connected in series, in parallel, or in a mixed connection to form a battery module 400, and the multiple battery modules 400 are then connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in a box. The battery device 100 may also include other structures. For example, the battery device 100 may also include a busbar component for realizing electrical connection between the multiple battery cells 20.

[0061] Each battery cell 20 may be a secondary battery cell or a primary battery cell, or a lithium-sulfur battery cell, a sodium-ion battery cell, or a magnesium-ion battery cell, but is not limited thereto. The battery cell 20 may be cylindrical, flat, rectangular, or in other shapes.

[0062] Please refer to Figure 4 , Figure 4 Schematic diagram of the exploded structure of a battery cell provided in some embodiments of the present application. A battery cell 20 refers to the smallest unit constituting a battery. The battery cell 20 includes an end cap 21, a housing 22, an electrode assembly 23 and other functional components.

[0063] The end cap 21 refers to a component that covers the opening of the shell 22 to isolate the internal environment of the battery cell 20 from the external environment. Without limitation, the shape of the end cap 21 can be adapted to the shape of the shell 22 to match the shell 22. Optionally, the end cap 21 can be made of a material with a certain hardness and strength (such as aluminum alloy), so that the end cap 21 is not easily deformed when squeezed and collided, so that the battery cell 20 can have a higher structural strength and the safety performance can also be improved. Functional components such as electrode terminals 26 can be provided on the end cap 21. The electrode terminal 26 can be used to electrically connect to the electrode assembly 23 for outputting or inputting electrical energy of the battery cell 20. In some embodiments, the end cap 21 can also be provided with a pressure relief mechanism for releasing the internal pressure when the internal pressure or temperature of the battery cell 20 reaches a threshold. The material of the end cap 21 can also be a variety of materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiment of the present application does not impose any special restrictions on this. In some embodiments, an insulating member may be provided inside the end cap 21, and the insulating member may be used to isolate the electrical connection components in the housing 22 from the end cap 21 to reduce the risk of short circuit. For example, the insulating member may be plastic, rubber, or the like.

[0064] Figure 5 is a schematic structural diagram of a battery storage device in some embodiments of the present application; Figure 6 is a schematic structural diagram of another state of a battery storage device in some embodiments of the present application; Figure 7 is a side view of a hinge mechanism of some embodiments of the present application; Figure 8 is a side view of a battery storage device according to some embodiments of the present application.

[0065] Please refer to Figure 5-Figure 8In the first aspect, the embodiment of the present application provides a battery storage device 500, which includes a box body 40, a hinge mechanism 50 and a baffle 60. The box body 40 is used to accommodate the battery device 100, and the box body 40 is provided with an opening 41; the hinge mechanism 50 includes a first hinge 51, a second hinge 52 and a hot melt portion 53, the first hinge 51 includes a first hinge body 511 and a fixed shaft 512, and the first hinge body 511 is fixed to the top of the box body 40; the second hinge 52 includes a second hinge body 521 and a rotating shaft 522, and the rotating shaft 522 is sleeved on the outer periphery of the fixed shaft 512; the hot melt portion 53 is arranged between the rotating shaft 522 and the fixed shaft 512; the baffle 60 is fixed to the second hinge body 521, and the baffle 60 is used to cover the cover 30 at the opening 41 when the hot melt portion 53 is melted.

[0066] In the automated production line of a factory, a large number of battery devices 100 need to be temporarily stored and transported. Therefore, the battery storage device 500 of the embodiment of the present application can be used to store the battery devices 100 on the production line. Or in the energy storage system, the battery storage device 500 of the embodiment of the present application can be used to store energy storage batteries. Or the battery storage device 500 of the embodiment of the present application can also be used to store the battery devices 100 in the battery swap station, or can also be used to store the battery devices 100 in ships or vehicles.

[0067] There may be a plurality of battery storage devices 500 , and the plurality of battery storage devices 500 are placed on a shelf to store a plurality of battery devices 100 .

[0068] The box body 40 may be in the shape of a cuboid, a cube, a cylinder, etc. The opening 41 of the box body 40 is convenient for taking and placing the battery device 100. The opening 41 may be provided on the side of the box body 40, or may also be provided on the top surface of the box body 40.

[0069] The hot melt portion 53 may be made of a low melting point alloy, such as bismuth (Bi), tin (Sn), lead (Pb), cadmium (Cd) and other metals. Alternatively, the hot melt portion 53 may also be made of a thermoplastic material, such as polylactic acid (PLA), polyethylene (PE) and the like. The hot melt portion 53 may be arranged around the outer periphery of the fixed shaft 512, or a plurality of spaced hot melt portions 53 may be arranged on the outer periphery of the fixed shaft 512. Alternatively, the hot melt portion 53 may be arranged on the outer periphery of the fixed shaft 512 in an arc shape.

[0070] When preparing the battery storage device 500, the material of the hot melt portion 53 in a fluid state is injected between the fixed shaft 512 and the rotating shaft 522. After the hot melt portion 53 is solidified, the rotating shaft 522 and the fixed shaft 512 are fixed by the hot melt portion 53, the rotating shaft 522 cannot rotate, and the baffle 60 can be in a horizontal state. When the battery device 100 has thermal runaway, the hot melt portion 53 is melted by the high temperature, the rotating shaft 522 can rotate, and the baffle 60 falls to a vertical state.

[0071] In the above scheme, under normal conditions, the hot melt portion 53 is solid, the rotating portion 523 is bonded to the fixed shaft 512 through the hot melt portion 53, the rotating portion 523 cannot rotate, and the baffle 60 does not cover the opening 41, which facilitates the removal and placement of the battery device 100. If the battery device 100 has thermal runaway, the high temperature will melt the hot melt portion 53 of the hinge mechanism 50, and the rotating portion 523 can rotate relative to the fixed shaft 512. Since the first hinge body 511 is fixed to the top of the box body 40, the baffle 60 rotates downward under the action of gravity to cover the opening 41, isolating the oxygen outside the box body 40 from entering the inside of the box body 40, thereby preventing the thermal runaway from further deteriorating to a certain extent and improving the storage safety performance of the battery device 100.

[0072] In some embodiments, the melting temperature of the hot melt portion 53 is greater than or equal to 70° C. and less than or equal to 100° C.

[0073] The melting temperature of the hot melt portion 53 may be any value between 70°C and 100°C, for example, 70°C, 80°C, 90°C or 100°C.

[0074] For example, the material of the hot melt portion 53 may be microcrystalline wax, bismuth-based alloy, styrene-butadiene-styrene block copolymer, or the like.

[0075] Microcrystalline wax has good flexibility and adhesion, and can well fill the gap between the rotating shaft 522 and the fixed shaft 512 in solid state to ensure the stability of the connection; after melting, the fluidity is relatively moderate, and other components will not be contaminated or interfered with due to excessive flow.

[0076] The melting point of bismuth-based alloys is precisely controllable, and specific temperature requirements can be met by changing the alloy composition; the alloy has good thermal conductivity and can respond quickly and melt in time when the temperature changes.

[0077] Styrene-butadiene-styrene block copolymer has good elasticity and toughness, and can withstand certain external forces without deformation in the solid state; after melting, the fluidity of the material can make the connection between the rotating shaft 522 and the fixed shaft 512 transition smoothly without sudden jamming.

[0078] In the above solution, by limiting the melting temperature of the hot-melt portion 53 within a suitable range, it can be ensured to a certain extent that the hot-melt portion 53 can melt when thermal runaway occurs in the battery device 100 .

[0079] In some embodiments, the melting temperature of the heat-melting portion 53 is less than or equal to 80°C.

[0080] The melting temperature of the hot melt portion 53 may be any value between 70°C and 80°C, for example, 70°C, 73°C, 78°C or 80°C.

[0081] In the above solution, it is further ensured that the hot melt portion 53 can melt when thermal runaway occurs in the battery device 100 .

[0082] In some embodiments, the box body 40 includes a bottom plate 42 and a top plate 43, the bottom plate 42 is used to support the battery device 100; the bottom plate 42 and the top plate 43 are arranged at a relative interval, the opening 41 is located between the bottom plate 42 and the top plate 43, and the first hinge body 511 is arranged at a position on the top plate 43 close to the opening 41.

[0083] In the above solution, by arranging the first hinge body 511 at a position of the top plate 43 close to the opening 41 , when the hot melt portion 53 is melted by high temperature, the baffle 60 can fall downward due to gravity to close the opening 41 .

[0084] In some embodiments, there are multiple hinge mechanisms 50 , and the multiple hinge mechanisms 50 are respectively arranged on the box body 40 at intervals.

[0085] For example, the number of hinge mechanisms 50 is two, and the two hinge mechanisms 50 are respectively arranged at the left end and the right end of the top plate 43. Alternatively, the number of hinge mechanisms 50 can also be three, and the three hinge mechanisms 50 are arranged at intervals along one side of the box body 40. Alternatively, the number of hinge mechanisms 50 can also be more than three.

[0086] In the above solution, by arranging two hinge mechanisms 50 at the two ends of the top plate 43 respectively, the stability of the baffle 60 when falling can be improved.

[0087] In some embodiments, the hot melt portion 53 is disposed around the outer circumference of the fixed shaft 512 .

[0088] In the above solution, by arranging the hot-melt portion 53 around the outer circumference of the fixed shaft 512, the area of ​​the hot-melt portion 53 can be increased, so that the baffle 60 will not fall off in a normal state.

[0089] Fig. 9 It is a schematic diagram of the structure of the hinge mechanism of some embodiments of the present application.

[0090] like Fig. 9 As shown, in some embodiments, the fixed shaft 512 includes a shaft body 513 and a blocking portion 514 arranged on the shaft body 513, and the first hinge body 511 is connected to the blocking portion 514; the rotating shaft 522 includes a plurality of rotating portions 523 arranged at intervals along its own axial direction, and adjacent rotating portions 523 are provided with a blocking portion 514.

[0091] The blocking portion 514 may be disposed in a surrounding manner along the circumference of the fixed shaft 512 , or may be disposed in an arc shape on the outer circumference of the fixed shaft 512 .

[0092] Exemplarily, two blocking parts 514 are arranged at intervals and are both connected to the first hinge body 511. Three rotating parts 523 are arranged at intervals and are both connected to the second hinge body 521. One blocking part 514 is arranged between two adjacent rotating parts 523. Multiple rotating parts 523 can rotate simultaneously.

[0093] In the above solution, the stability of the hinge mechanism 50 during rotation can be improved by setting the rotation portion 523 and the blocking portion 514 at intervals.

[0094] Fig.10 It is a schematic diagram of the structure of a battery storage device according to some other embodiments of the present application.

[0095] like Fig.10 As shown, in some embodiments, the box body 40 is provided with a magnet portion 44 at the edge of the opening 41 , and the baffle 60 is a metal plate.

[0096] The edge of the opening 41 of the box body 40 is provided with a magnet portion 44, and the baffle 60 is made of metal. The magnet portion 44 can be fixed to the edge of the opening 41 of the box body 40 by inlaying, pasting, etc., to ensure firmness and accurate position. As a metal plate, the baffle 60 can generate magnetic attraction with the magnet portion 44. For example, the baffle 60 made of common metal materials such as iron and nickel is easily attracted by the magnet.

[0097] Fig.11 Schematic diagram of the structure of battery storage devices according to some other embodiments of the present application.

[0098] Or, if Fig.11 As shown, in other embodiments, the baffle 60 is provided with a magnet portion 44 at the edge corresponding to the opening 41, and the box body 40 is a metal box.

[0099] The magnet part 44 on the baffle 60 is installed at the edge position of the opening 41 of the box body 40, and the box body 40 is made of metal material. The magnet part 44 can be fixed on the baffle 60 by inlaying, pasting, etc. The metal material of the box body 40 can be common metal materials such as stainless steel, aluminum alloy, etc.

[0100] Fig.12 Schematic diagram of the structure of battery storage devices according to some other embodiments of the present application.

[0101] Or, if Fig.12 As shown, in some other embodiments, the box body 40 is provided with a first magnet portion 45 at the edge of the opening 41, and the baffle 60 is provided with a second magnet portion 61 at the edge corresponding to the opening 41, and the polarities of the first magnet portion 45 and the second magnet portion 61 are opposite.

[0102] A first magnet portion 45 is fixed to the edge of the opening 41 of the box body 40 , and a second magnet portion 61 is installed at the corresponding position of the baffle 60 , and the polarities of the two are opposite. For example, the first magnet portion 45 has an N pole facing the opening 41 , and the second magnet portion 61 has an S pole facing the opening 41 .

[0103] In the above solution, when the baffle 60 falls to the opening 41 of the box body 40 , it is attracted by the magnet, which can improve the sealing performance of the battery storage device 500 when the battery device 100 has thermal runaway.

[0104] Fig.13 Schematic diagram of the structure of battery storage devices according to some other embodiments of the present application.

[0105] like Fig.13 As shown, in some embodiments, the battery storage device 500 further includes a buffer portion 70 , which is disposed at an edge of the opening 41 of the box body 40 and / or an edge of the baffle 60 corresponding to the opening 41 .

[0106] When the buffer part 70 is arranged at the edge of the opening 41 of the box body 40, it can take a variety of forms. For example, it can be a rubber strip pasted on the edge of the opening 41. The rubber strip has good elasticity and can play a buffering role when the baffle 60 falls to cover. It can also be a small polyurethane foam block installed at the edge of the opening 41. The polyurethane foam also has excellent buffering performance, and can be customized according to the shape of the edge of the opening 41 to ensure that the complete edge area is covered, so as to better disperse the impact force generated by the impact of the baffle 60. In addition, it can also be a metal or plastic frame structure with a built-in spring, which is installed at the edge of the opening 41. The spring can absorb the impact force by its own expansion and contraction when the baffle 60 contacts, thereby playing a buffering effect.

[0107] In the above solution, when the baffle 60 falls to the opening 41 of the box body 40 , the buffer portion 70 can reduce the risk of the baffle 60 or the box body 40 being damaged by collision, thereby increasing the life of the battery storage device 500 .

[0108] In a second aspect, an embodiment of the present application provides a battery storage system, comprising a battery storage device 500 of any of the above-mentioned embodiments.

[0109] According to some embodiments of the present application, the present application provides a battery storage device 500, which includes a box body 40, a hinge mechanism 50 and a baffle 60. The box body 40 is used to accommodate the battery device 100, and the box body 40 is provided with an opening 41; the hinge mechanism 50 includes a first hinge 51, a second hinge 52 and a hot melt portion 53, the first hinge 51 includes a first hinge body 511 and a fixed shaft 512, and the first hinge body 511 is fixed to the top of the box body 40; the second hinge 52 includes a second hinge body 521 and a rotating shaft 522, and the rotating shaft 522 is sleeved on the outer periphery of the fixed shaft 512; the hot melt portion 53 is arranged between the rotating shaft 522 and the fixed shaft 512; the baffle 60 is fixed to the second hinge body 521, and the baffle 60 is used to cover the cover 30 at the opening 41 when the hot melt portion 53 is melted. The melting temperature of the hot melt portion 53 is greater than or equal to 70°C and less than or equal to 100°C.

[0110] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery storage device, characterized in that: include: A box body, used to accommodate the battery device, the box body is provided with an opening; The hinge mechanism comprises a first hinge, a second hinge and a hot-melt portion, wherein the first hinge comprises a first hinge body and a fixed shaft, and the first hinge body is fixed to the top of the box body; the second hinge comprises a second hinge body and a rotating shaft, and the rotating shaft is sleeved on the outer periphery of the fixed shaft; the hot-melt portion is arranged between the rotating shaft and the fixed shaft; A baffle is fixed to the second hinge body, and is used to cover the opening when the hot-melt portion is melted.

2. The battery storage device according to claim 1, characterized in that: The melting temperature of the hot melt portion is greater than or equal to 70°C and less than or equal to 100°C.

3. The battery storage device according to claim 2, characterized in that: The melting temperature of the hot melt portion is less than or equal to 80°C.

4. The battery storage device according to claim 1, characterized in that: The box body comprises: A bottom plate, the bottom plate is used to support the battery device; The top plate, the bottom plate and the top plate are arranged at a relative interval, the opening is located between the bottom plate and the top plate, and the first hinge body is arranged at a position of the top plate close to the opening.

5. The battery storage device according to claim 4, characterized in that: The number of the hinge mechanisms is multiple, and the multiple hinge mechanisms are respectively arranged on the box body at intervals.

6. The battery storage device according to claim 1, characterized in that: The hot melt portion is disposed around the outer circumference of the fixed shaft.

7. The battery storage device according to claim 1, characterized in that: The fixed shaft comprises a shaft body and a blocking portion arranged on the shaft body, and the first hinge body is connected to the blocking portion; The rotating shaft comprises a plurality of rotating parts arranged at intervals along the axial direction thereof, and adjacent rotating parts are provided with one blocking part.

8. The battery storage device according to claim 1, characterized in that: The box body is provided with a magnet portion at the edge of the opening, and the baffle is a metal plate; Alternatively, the baffle is provided with a magnet portion at an edge corresponding to the opening, and the box body is a metal box; Alternatively, the box body is provided with a first magnet portion at the edge of the opening, and the baffle is provided with a second magnet portion at the edge corresponding to the opening, and the polarities of the first magnet portion and the second magnet portion are opposite.

9. The battery storage device according to claim 1, characterized in that: The battery storage device further includes a buffer portion, which is arranged at an edge of the opening of the box body and / or an edge of the baffle corresponding to the opening.

10. A battery storage system, characterized in that: Comprising a battery storage device according to any one of claims 1-9.

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