Heat insulation device of energy storage system and energy storage system

Abstract

The embodiment of the utility model provides heat insulation equipment of an energy storage system and the energy storage system, and relates to the technical field of batteries. The heat insulation equipment comprises a moving device and a heat insulation device, the moving device is used for driving the heat insulation device to move, the heat insulation device comprises a heat insulation part and a locking mechanism, the heat insulation part can be switched between a containing state and an unfolding state, and the locking mechanism is connected to the heat insulation part and used for locking the heat insulation part in the containing state. The risk of thermal diffusion of the thermal runaway energy storage equipment is reduced by utilizing the heat insulation piece, so that the influence on the surrounding energy storage equipment when the single energy storage equipment is subjected to thermal runaway is reduced, and the risk of fire caused by expansion of the thermal runaway range is reduced; besides, the moving device can be used for blocking heat diffusion of the thermal runaway energy storage equipment in the first time, a blocking structure does not need to be arranged between every two adjacent energy storage equipment in advance, operation and maintenance of the energy storage equipment and subsequent fire protection treatment on the thermal runaway energy storage equipment are not affected, and the cost can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of batteries, and more specifically, to a thermal barrier device for an energy storage system and an energy storage system. Background Art

[0002] When a thermal runaway occurs in an energy storage device, it is easy to emit high-temperature thermal radiation to the surroundings, and high-temperature splashes will appear around during pressure relief, which is likely to affect the surrounding energy storage devices, and then cause thermal runaway of the surrounding energy storage equipment, further expanding the scope of thermal runaway and even causing serious fires. Therefore, how to reduce the impact of a single energy storage device on the surrounding energy storage devices when a thermal runaway occurs is a research direction in battery technology. Summary of the Utility Model

[0003] The present application provides a thermal barrier device for an energy storage system and an energy storage system, which can reduce the impact of a single energy storage device on the surrounding energy storage devices when a thermal runaway occurs.

[0004] In a first aspect, an embodiment of the present application provides a thermal barrier device for an energy storage system, including a moving device and a heat insulation device. The heat insulation device includes a heat insulation member and a locking mechanism. The locking mechanism is connected to the heat insulation member and is used to lock the heat insulation member in a received state. In the received state, the heat insulation member is in a folded or wound state. The locking mechanism is configured to be able to release the locking of the heat insulation member so that the heat insulation member can be switched between the received state and the deployed state; the moving device is connected to the heat insulation device and is used to drive the heat insulation device to move.

[0005] By adopting the above technical solution, when a single energy storage device has a thermal runaway, the moving device is used to drive the heat insulation device to be located between the thermally runaway energy storage device and the adjacent energy storage device, and the locking of the received state of the heat insulation member by the locking mechanism is released. The heat insulation member is used to reduce the risk of heat diffusion of the thermally runaway energy storage device, thereby reducing the impact of a single energy storage device on the surrounding energy storage devices when a thermal runaway occurs, reducing the scope of thermal runaway and the risk of causing a fire; in addition, since the moving device can be used to block the heat diffusion of the thermally runaway energy storage device in the first time, there is no need to pre-set a blocking structure between every two adjacent energy storage devices, which does not affect the operation and maintenance of the energy storage device and the subsequent fire fighting treatment of the thermally runaway energy storage device, and can reduce costs.

[0006] In some embodiments of the present application, the heat insulation member includes a first shaft portion, a flexible heat insulation portion, and a second shaft portion. The first shaft portion is used to connect the moving device. The flexible heat insulation portion has a first end and a second end. The first end is connected to the first shaft portion, and the second end is connected to the second shaft portion. In the received state, at least part of the flexible heat insulation portion is received between the first shaft portion and the second shaft portion.

[0007] With the above technical solution, the heat insulation member includes a first shaft portion, a flexible heat insulation portion, and a second shaft portion. The flexible heat insulation portion can not only block the heat diffusion of the energy storage device, but also facilitate accommodation.

[0008] In some embodiments of the present application, the flexible heat insulation portion is folded between the first shaft portion and the second shaft portion to switch to the accommodation state.

[0009] With the above technical solution, the flexible heat insulation portion is designed to be folded between the first shaft portion and the second shaft portion to form an accommodation state. After the locking mechanism releases the accommodation state of the heat insulation member, the flexible heat insulation portion can be naturally released and unfolded under the drive of its own gravity and the gravity of the second shaft portion to form a heat insulation barrier.

[0010] In some embodiments of the present application, from the first end to the second end, the flexible heat insulation portion is provided with a plurality of creases at intervals.

[0011] With the above technical solution, a plurality of creases are provided at intervals on the flexible heat insulation portion, and the creases are used to facilitate the folding of the flexible heat insulation portion, so that the flexible heat insulation portion can be quickly accommodated and maintain a regular accommodation state.

[0012] In some embodiments of the present application, the flexible heat insulation portion is wound around the first shaft portion and / or the second shaft portion to switch to the accommodation state.

[0013] With the above technical solution, winding the flexible heat insulation portion around the first shaft portion and / or the second shaft portion can improve the stability of the flexible heat insulation portion in the accommodation state.

[0014] In some embodiments of the present application, a counterweight is installed on the second shaft portion.

[0015] With the above technical solution, a counterweight is installed on the second shaft portion, thereby increasing the gravity of the second shaft portion. After the locking mechanism releases the accommodation state, the heavier second shaft portion can facilitate the unfolding of the flexible heat insulation portion.

[0016] In some embodiments of the present application, the locking mechanism is configured to release the locking of the accommodation state at a preset temperature.

[0017] With the above technical solution, the locking mechanism is designed to release the locking of the heat insulation member at a preset temperature, so that the heat insulation member can be automatically released when it reaches near the heat runaway energy storage device, and the structure is ingenious.

[0018] In some embodiments of the present application, the locking mechanism includes a binding member for binding the heat insulation member in the received state. The melting point of the binding member is less than that of the heat insulation member and less than or equal to the preset temperature.

[0019] With the above technical solution, the locking mechanism is designed to include a binding member. The binding member is used to bind the heat insulation member to lock the received state. And the melting point of the binding member is designed to be less than the preset temperature and the melting point of the heat insulation member respectively, so that the binding member can melt near the thermal runaway energy storage device, facilitating the heat insulation member to switch to the deployed state.

[0020] In some embodiments of the present application, the locking mechanism includes a binding member and a switch assembly. The binding member has a first connection end and a second connection end, and the first connection end and the second connection end are connected through the switch assembly to form a binding sleeve capable of locking the heat insulation member. The switch assembly is configured to release the connection between the first connection end and the second connection end when the preset temperature is reached, so as to release the locking of the heat insulation member.

[0021] With the above technical solution, the locking mechanism is designed to include a binding member and a switch assembly. The switch assembly releases the connection between the first connection end and the second connection end when the preset temperature is reached, so as to release the locking of the received state of the heat insulation member, realizing the automatic opening of the locking mechanism.

[0022] In some embodiments of the present application, the switch assembly includes a temperature detection component, a control circuit, a first electromagnetic component and a second electromagnetic component. The control circuit is respectively connected to the temperature detection component, the first electromagnetic component and the second electromagnetic component, and is used to disconnect or close the magnetic connection of the first electromagnetic component and the second electromagnetic component.

[0023] With the above technical solution, the switch assembly is designed to include a temperature detection component, a control circuit, a first electromagnetic component and a second electromagnetic component. When the temperature detection component detects that the ambient temperature reaches the preset temperature, the control circuit turns off the magnetism of the first electromagnetic component and the second electromagnetic component, thereby releasing the connection between the first connection end and the second connection end, so as to release the locking of the heat insulation member, realizing the switching of the heat insulation member from the received state to the deployed state.

[0024] In some embodiments of the present application, the moving device is configured to be able to drive the heat insulation member to move along a first direction and a second direction respectively. The first direction is the arrangement direction from the moving device to the heat insulation member, and the second direction intersects the first direction.

[0025] With the above technical solution, the moving device is used to drive the heat insulation member to move along the first direction and the second direction respectively, so that the heat insulation member can move in at least two degrees of freedom, facilitating the adjustment of the position of the heat insulation member, and enabling the heat insulation member to better block the heat diffusion of the energy storage device.

[0026] In some embodiments of the present application, the moving device is a crane or a handling robot.

[0027] With the above technical solution, the moving device is designed to include a crane, which can drive the heat insulation member to move in the vertical and horizontal directions. Designing the moving device to include a handling robot can improve the flexibility of the movement of the heat insulation member.

[0028] In a second aspect, embodiments of the present application provide an energy storage system, including an energy storage device and a heat barrier device of the energy storage system according to any one of the above technical solutions. The heat barrier device is configured to be able to move to face the heat diffusion surface of the energy storage device and is used to block the heat diffusion of the energy storage device. Description of the Drawings

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used 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 those of ordinary skill in the art, other drawings can be obtained according to the drawings without creative efforts.

[0030] Figure 1 It is a schematic structural diagram of the heat barrier device of the energy storage system provided by some embodiments of the present application;

[0031] Figure 2 It is an application scenario diagram of the heat barrier device of the energy storage system provided by some embodiments of the present application;

[0032] Figure 3 It is a schematic structural diagram of the heat insulation member in the housed state provided by some embodiments of the present application;

[0033] Figure 4 It is a schematic structural diagram of a heat insulation member in the deployed state provided by some embodiments of the present application;

[0034] Figure 5 It is a schematic structural diagram of another heat insulation member in the deployed state provided by some embodiments of the present application;

[0035] Figure 6 It is a schematic structural diagram of a locking mechanism provided by some embodiments of the present application.

[0036] The reference numerals in the specific embodiments are as follows:

[0037] 100. Thermal insulation device for energy storage system;

[0038] 10. Mobile device; 11. Lifting mechanism; 12. First track; 13. Second track;

[0039] 20. Heat insulation device; 21. Heat insulation member; 211. First shaft portion; 212. Flexible heat insulation portion; 2121. First end; 2122. Second end; 2123. Crease; 213. Second shaft portion; 2131. Counterweight; 22. Locking mechanism; 221. Binding member; 2211. First connection end; 2212. Second connection end; 222. Switch assembly; 2221. Temperature detection member; 2222. First electromagnetic member; 2223. Second electromagnetic member;

[0040] 30. Connection structure;

[0041] 200. Energy storage device;

[0042] X. First direction; Y. Second direction; Z. Third direction. Detailed implementation manners

[0043] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0044] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs; the terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "provided with" and any variations thereof in the specification and claims of the present application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of the present application or the above drawings are used to distinguish different objects and are not used to describe a specific order or primary-secondary relationship.

[0045] Referring to "embodiments" in the present application means that specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments.

[0046] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "linked", and "attached" 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, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0047] In the present application, the term "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in the present application generally represents an "or" relationship between the front and back associated objects.

[0048] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, in different embodiments, the detailed description of the same components is omitted. It should be understood that the thickness, length, width, etc. of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width, etc. of the integrated device are only illustrative and should not constitute any limitation to the present application.

[0049] The term "a plurality of" as used in the present application refers to two or more (including two).

[0050] Next, the embodiments of the present application will be described in detail.

[0051] The energy storage device integrates energy storage units (power batteries) in a container, achieving the rapid integration and rapid commissioning of the batteries. For the energy storage device, as the number of energy storage units therein continues to increase, the possibility of thermal runaway also increases.

[0052] After a single energy storage device experiences thermal runaway, it will thermally diffuse to the surrounding remaining energy storage devices. The ways of thermal diffusion include high-temperature radiation and the diffusion of high-temperature splashes during explosion venting, which will cause the surrounding energy storage devices to successively experience thermal runaway, expanding the scope of thermal runaway and causing a serious fire.

[0053] Therefore, how to reduce the possibility of thermal diffusion from a single energy storage device to the surrounding area after thermal runaway is an important topic in battery production and processing.

[0054] In view of this, the present application provides a thermal barrier device for an energy storage system. By designing the thermal barrier device of the energy storage system to include a moving device and a heat insulation device, when a single energy storage device experiences thermal runaway, the moving device drives the heat insulation device to move to the energy storage device with thermal runaway, thereby reducing the possibility of thermal diffusion from the energy storage device to the surrounding area after thermal runaway.

[0055] Combined with the attachedFigure 1 As shown, the present application example provides a thermal barrier device 100 for an energy storage system, including a moving device 10 and a heat insulation device 20. The heat insulation device 20 includes a heat insulation member 21 and a locking mechanism 22. The locking mechanism 22 is connected to the heat insulation member 21 and is used to lock the heat insulation member 21 in a received state. In the received state, the heat insulation member 21 is in a folded or wound state. The locking mechanism 22 is configured to be able to release the locking of the heat insulation member 21, so that the heat insulation member 21 can be switched between the received state and the deployed state; the moving device 10 is connected to the heat insulation device 20 and is used to drive the heat insulation device 20 to move.

[0056] The moving device 10 is a structure for driving the heat insulation device 20 to move. The moving device 10 can drive the heat insulation device 20 to move along the first direction X and / or the second direction Y in the figure. In some embodiments, the first direction X can be the vertical direction, and the second direction Y can be the horizontal direction.

[0057] The moving device 10 can be connected to the heat insulation device 20 through a connection structure 30. In some embodiments, the connection structure 30 can include two connecting members, and the two connecting members respectively connect the opposite ends of the heat insulation member 21 along the second direction.

[0058] The connecting member can be a channel steel or a clamping jaw. The channel steel can be used to accommodate the end of the heat insulation member 21, and the clamping jaw is used to clamp the end of the heat insulation member 21. Of course, the specific structural form of the connecting member is not limited to this, and other structures that can be used to place or install the end of the heat insulation member 21 can also be used as the connecting member in this embodiment, and this embodiment will not list them one by one.

[0059] The heat insulation member 21 is configured to be able to be switched between the received state and the deployed state, which means that in Figure 3 the received state, the heat insulation member 21 is wound or folded to obtain a smaller area, so as to facilitate the transportation and placement of the heat insulation member 21 and does not occupy site space.

[0060] And in the Figure 2 and 4 deployed state, at this time the heat insulation member 21 is fully or partially deployed, so that the heat insulation member 21 has a larger area to block the heat diffusion of a single energy storage device 200 in thermal runaway to adjacent energy storage devices 200, thereby reducing the impact of a single energy storage device 200 in thermal runaway on the surrounding energy storage devices 200, reducing the thermal runaway range and the risk of causing a fire.

[0061] The locking mechanism 22 is used to lock the receiving state of the heat insulation member 21. Specifically, it can be understood as restricting the heat insulation member 21 from opening from the receiving state to the deployed state, and the locking mechanism 22 can release the locking of the receiving state of the heat insulation member 21 under external conditions (external force or heat), so that the heat insulation member 21 can be switched from the receiving state to the deployed state.

[0062] The locking mechanism 22 may include a binding member 221 similar to a rope. The binding member 221 is wound around and fastened to the heat insulation member 21 in the receiving state. The heat insulation member 21 can be unfolded by manually releasing the fastening of the binding member 221 on the heat insulation member 21. The binding member 221 can also be designed to be made of an organic material with a melting point lower than the following preset temperature (such as 300 °C), such as nylon or other plastics, so that when the heat insulation device 20 is located near the thermal runaway energy storage device 200, the binding member 221 melts to facilitate the unfolding of the heat insulation member 21.

[0063] Combined with the attached Figure 2 As shown, when a single energy storage device 200 has a thermal runaway, the moving device 10 drives the heat insulation device 20 to be located between the heat release surface of the thermal runaway energy storage device 200 and the adjacent energy storage device 200, and releases the locking of the receiving state of the heat insulation member 21 by the locking mechanism 22. The heat insulation member 21 is used to reduce the risk of thermal diffusion of the thermal runaway energy storage device 200, thereby reducing the impact on the surrounding energy storage devices 200 when a single energy storage device 200 has a thermal runaway, and reducing the scope of thermal runaway and the risk of causing a fire. In addition, since the moving device 10 can be used to block the thermal diffusion of the thermal runaway energy storage device 200 in the first time, there is no need to pre-set a blocking structure between every two adjacent energy storage devices 200, which does not affect the operation and maintenance of the energy storage device 200 and the subsequent fire fighting treatment of the thermal runaway energy storage device 200, and can reduce costs.

[0064] It can be understood that the thermal barrier device 100 of the energy storage system in this embodiment is mainly used for the preliminary thermal diffusion barrier before the energy storage device 200 is not completely on fire on a large area. After the thermal diffusion control by the thermal barrier device 100 of the energy storage system in this embodiment, corresponding fire fighting measures need to be taken to carry out the fire fighting treatment of the thermal runaway energy storage device 200.

[0065] Combined with the attached Figure 4 and the attached Figure 5As shown, in some examples, optionally, the heat insulation member 21 includes a first shaft portion 211, a flexible heat insulation portion 212, and a second shaft portion 213. The first shaft portion 211 is used to connect to the mobile device 10. The flexible heat insulation portion 212 has a first end 2121 and a second end 2122. The first end 2121 is connected to the first shaft portion 211, and the second end 2122 is connected to the second shaft portion 213. In the received state, at least a part of the flexible heat insulation portion 212 is received between the first shaft portion 211 and the second shaft portion 213.

[0066] The first shaft portion 211 and the second shaft portion 213 are rod-shaped members, and their cross-sections can be circular, so that the first shaft portion 211 and the second shaft portion 213 form a circular shaft member, facilitating the winding or folding of the flexible heat insulation portion 212. The materials of the first shaft portion 211 and the second shaft portion 213 can be metal or polymer materials. When the locking mechanism 22 includes a binding member 221 made of the above-mentioned organic material with a low melting point, the melting points of the first shaft portion 211 and the second shaft portion 213 should be greater than the melting point of the binding member 221.

[0067] The flexible heat insulation portion 212 can be made of a material with certain heat insulation or flame retardant properties, and its melting point should be greater than 300 °C, and further can be greater than 500 °C. In some embodiments, the flexible heat insulation portion 212 can be made of glass fiber material, asbestos material, chemical fiber material, polyester material, etc., and this embodiment will not list them one by one.

[0068] One of the opposite ends of the flexible heat insulation portion 212 can be connected to the first shaft portion 211 respectively by mechanical connection means such as bonding, hot melting, and binding. The other of the opposite ends of the flexible heat insulation portion 212 can also be connected to the second shaft portion 213 by the above mechanical connection means.

[0069] The heat insulation member 21 includes the first shaft portion 211, the flexible heat insulation portion 212, and the second shaft portion 213. Using the flexible heat insulation portion 212 can not only block the heat diffusion of the energy storage device 200, but also facilitate the accommodation of the flexible heat insulation portion 212. In addition, the first shaft portion 211 and the second shaft portion 213 can be used to dock with the mobile device 10, thus facilitating the installation of the heat insulation device 20 on the mobile device 10.

[0070] Combined with the attached Figure 4 As shown, in some examples, optionally, the flexible heat insulation portion 212 is folded between the first shaft portion 211 and the second shaft portion 213 to switch to the received state.

[0071] Folding means bending the flexible heat insulation portion 212 at least once to reduce its overall area. In some embodiments, the flexible heat insulation portion 212 can be bent multiple times, so that the flexible heat insulation portion 212 can reduce its own area after folding.

[0072] The folded flexible heat insulation part 212 is locked in the folded state by the locking mechanism 22. After the locking mechanism 22 is unlocked, the flexible heat insulation part 212 can be self-unfolded and released under its own gravity to form a heat insulation barrier.

[0073] In addition to being convenient for unfolding, folding the flexible heat insulation part 212 as the storage state also takes into account the convenient operation characteristics of folding, so that the flexible heat insulation part 212 can be quickly stored.

[0074] Combined with the attached Figure 4 As shown again, in some examples, optionally, from the first end 2121 to the second end 2122, the flexible heat insulation part 212 is provided with a plurality of creases 2123 at intervals.

[0075] The creases 2123 can be directly formed during the production of the flexible heat insulation part 212. For example, when producing the flexible heat insulation part 212, the creases 2123 are formed by designing depressions or protrusions.

[0076] Of course, it can also be that after the flexible heat insulation part 212 is produced, the creases 2123 are formed by folding manually or mechanically.

[0077] The number of the creases 2123 is multiple. In some embodiments, the multiple creases 2123 can be evenly spaced along the length direction of the flexible heat insulation part 212, so that the folded flexible heat insulation part 212 can form a strip structure with a cross-section approximately rectangular when fully folded, thereby realizing the quick storage of the flexible heat insulation part 212 and maintaining a regular storage state.

[0078] When the flexible heat insulation part 212 is unfolded, under its own gravity, a plurality of folded parts are opened along their respective creases 2123, thereby realizing the quick unfolding of the flexible heat insulation part 212.

[0079] Combined with the attached Figure 5 As shown, in some examples, optionally, the flexible heat insulation part 212 is wound around the first shaft part 211 and / or the second shaft part 213 to switch to the storage state.

[0080] The above technical solutions include three implementation manners. One is that when storing the flexible heat insulation part 212, the flexible heat insulation part 212 is completely wound around the first shaft part 211. Another is to wind the flexible heat insulation part 212 around the second shaft part 213.

[0081] Another one is as Figure 5 shown, part of the flexible heat insulation part 212 is wound around the first shaft part 211 and the other part is wound around the second shaft part 213. It can be understood that Figure 5The state where the flexible heat insulation part 212 is not fully wound and partially unfolded is shown for easy understanding.

[0082] The way of winding and accommodating the flexible heat insulation part 212 can improve the state stability of the flexible heat insulation part 212 after accommodation compared with the above-mentioned folding accommodation method. However, compared with folding accommodation, after winding and accommodating the flexible heat insulation part 212, the lower second shaft part 213 needs to have a certain weight to facilitate the unfolding of the wound flexible heat insulation part 212. In addition, the first shaft part 211 needs to be connected to the moving device 10 in a manner that can rotate around its own axis.

[0083] Combined with the attached Figure 5 As shown again, in some examples, optionally, a counterweight 2131 is installed on the second shaft part 213.

[0084] The counterweight 2131 can be installed at at least one end of the second shaft part 213 by mechanical connection methods such as plugging, welding, bolt connection, clamping, etc., or can be integrally formed with the second shaft part 213 during processing, so that the weight of the second shaft part 213 is greater than the weight of the first shaft part 211.

[0085] The counterweight 2131 can be made of the same or similar material as the second shaft part 213. For example, both are made of metal materials. The counterweight 2131 can increase the gravity of the second shaft part 213. After the locking mechanism 22 releases the accommodation state, the heavier second shaft part 213 can drag the wound flexible heat insulation part 212 downward, thereby facilitating the unfolding of the flexible heat insulation part 212.

[0086] In some examples, optionally, the locking mechanism 22 is configured to release the locking of the heat insulation part 21 at a preset temperature.

[0087] The locking mechanism 22 releases the locking of the heat insulation part 21 at a preset temperature, which means that when the locking mechanism 22 near the thermal runaway energy storage device 200 reaches the preset temperature, its restraint on the accommodated heat insulation part 21 fails.

[0088] In some embodiments, the failure method can be the destruction of its own structure or the opening of its own locking switch, so that the heat insulation part 21 can be automatically released when it reaches near the thermal runaway energy storage device 200. The structure is ingenious and there is no need to manually or by means of instruments to release the locking of the locking mechanism 22 on the accommodation state of the heat insulation part 21.

[0089] In some examples, optionally, the locking mechanism 22 includes a binding member 221. The binding member 221 is used to bind the heat insulation part 21 in the accommodation state. The melting point of the binding member 221 is less than the melting point of the heat insulation part 21 and less than or equal to the preset temperature.

[0090] The binding member 221 may be a binding member 221 made of the above-mentioned organic material with a melting point less than 300°C (such as nylon or other plastics), and of course, it may also be an inorganic material.

[0091] In some embodiments, the binding member 221 may have a certain flexibility, so as to facilitate directly tying the binding member 221 to the heat insulation member 21 after accommodation. Of course, the binding member 221 may also form a closed-loop structure through its own buckle or plug-in structure, so as to be sleeved on the heat insulation member 21 in the accommodated state to lock the accommodated state of the heat insulation member 21.

[0092] The above preset temperature may be any temperature between 200°C and 500°C. For example, the preset temperature may be 200°C, 250°C, 300°C, 350°C, 400°C or 500°C, etc., and this embodiment will not list them one by one.

[0093] The locking mechanism 22 is designed to include a binding member 221, and the binding member 221 is used to tie the heat insulation member 21 to lock the accommodated state, and the melting point of the binding member 221 is designed to be less than the preset temperature and the melting point of the heat insulation member 21 respectively, so that the binding member 221 can melt near the thermal runaway energy storage device 200, facilitating the heat insulation member 21 to switch to the unfolded state.

[0094] Combined with the attached Figure 6 As shown, in some examples, optionally, the locking mechanism 22 includes a binding member 221 and a switch assembly 222. The binding member 221 has a first connection end 2211 and a second connection end 2212. The first connection end 2211 and the second connection end 2212 are connected through the switch assembly 222 to enclose a binding sleeve capable of locking the heat insulation member 21. The switch assembly 222 is configured to release the connection between the first connection end 2211 and the second connection end 2212 at the preset temperature to release the locking of the heat insulation member 21.

[0095] It can be understood that the first connection end 2211 and the second connection end 2212 can be either the ends of the binding member 221 with a certain structural length or the end faces.

[0096] In addition to the above method of melting the binding member 221 at the preset temperature, the above technical solution of this embodiment also provides a method for the switch assembly 222 of the locking mechanism 22 to automatically open at the preset temperature. At this time, the binding member 221 may or may not melt at the preset temperature, which will not affect the opening of the switch assembly 222 at the preset temperature.

[0097] When the switch assembly 222 is not connected, the first connection end 2211 and the second connection end 2212 of the binding member 221 are respectively two free ends. After the first connection end 2211 and the second connection end 2212 are connected through the switch assembly 222, the binding member 221 and the switch assembly 222 form a closed-loop structure that can be sleeved on the heat insulation member 21 in the received state.

[0098] When the preset temperature is reached, the switch assembly 222 releases the connection between the first connection end 2211 and the second connection end 2212, thereby releasing the closed loop of the closed-loop structure, and further releasing the locking of the received state of the heat insulation member 21, realizing the automatic opening of the locking mechanism 22.

[0099] In some examples, optionally, the switch assembly 222 includes a temperature detection member 2221, a control circuit (not shown in the figure), a first electromagnetic member 2222, and a second electromagnetic member 2223. The control circuit is respectively connected to the temperature detection member 2221, the first electromagnetic member 2222, and the second electromagnetic member 2223, and is used to disconnect or close the magnetic connection between the first electromagnetic member 2222 and the second electromagnetic member 2223.

[0100] The control circuit can be a PLC control circuit, an MCU control circuit, etc. The control circuit can be respectively connected to the first electromagnetic member 2222 and the second electromagnetic member 2223 through a circuit. In order to reduce the possibility of damage to the control circuit at high temperatures, the control circuit can be arranged in a protective housing (not shown in the figure).

[0101] The temperature detection member 2221 can be a temperature sensor, such as a thermocouple, a thermistor, an infrared sensor, and a semiconductor temperature sensor, etc. This embodiment does not list them one by one, as long as it can perform temperature detection.

[0102] The temperature detection member 2221 and the control circuit can be connected by wire or wireless signal. The temperature sensor can be installed outside the above-mentioned protective housing, or can be installed on the first electromagnetic member 2222 and the second electromagnetic member 2223.

[0103] When the temperature detection member 2221 detects that the ambient temperature reaches the preset temperature, the control circuit respectively turns off the circuits of the first electromagnetic member 2222 and the second electromagnetic member 2223 to release the magnetic connection between the first electromagnetic member 2222 and the second electromagnetic member 2223, thereby releasing the connection between the first connection end 2211 and the second connection end 2212, and further releasing the locking of the heat insulation member 21, realizing the switching of the heat insulation member 21 from the received state to the deployed state.

[0104] In some examples, optionally, the mobile device 10 is configured to be able to drive the heat insulation member 21 to move along the first direction X and the second direction Y respectively. The first direction X is the arrangement direction from the mobile device 10 to the heat insulation member 21, and the second direction Y intersects the first direction X.

[0105] In some embodiments, one of the first direction X and the second direction Y is a horizontal direction, and the other is a vertical direction.

[0106] Taking the example that the mobile device 10 includes the following crane, at this time the first direction X is the vertical direction, and the mobile device 10 is located above the heat insulation device 20. Taking the example that the mobile device 10 includes the following handling robot, at this time the first direction X can be the horizontal direction (this embodiment is not shown in the figure).

[0107] By using the mobile device 10 to drive the heat insulation member 21 to move along the first direction X and the second direction Y respectively, the heat insulation member 21 can be moved in at least two degrees of freedom, which is convenient for adjusting the position of the heat insulation member 21, so that the heat insulation member 21 can better block the heat diffusion of the energy storage device 200.

[0108] In some embodiments, the mobile device 10 can also be configured to be able to drive the heat insulation member 21 to move along the third direction Z. The third direction Z can be another horizontal direction, and the first direction X, the second direction Y and the third direction Z intersect pairwise.

[0109] In this way, the mobile device 10 can drive the heat insulation member 21 to move in three degrees of freedom, thereby improving flexibility.

[0110] In some examples, optionally, the mobile device 10 is a crane or a handling robot.

[0111] The crane can be an overhead crane. The overhead crane can not only move the heat insulation device 20 along the vertical direction, but also the overhead crane can move along its own track in the horizontal direction. In some embodiments, the overhead crane can be installed in the workshop where the energy storage device 200 is placed. The overhead crane includes a lifting mechanism 11, a first track 12 along the second direction Y and a second track 13 along the third direction Z. At this time, the second direction Y and the third direction Z are two mutually perpendicular horizontal directions, and the first direction X is the vertical direction.

[0112] Further, the lifting mechanism 11 is connected to the first track 12 in a manner of moving along the second direction Y, and the first track 12 is connected to the second track 13 in a manner of moving along the third direction Z, so that the lifting mechanism 11 can not only move along the second direction Y, but also move along the third direction Z driven by the first track 12, and the lifting mechanism 11 itself can drive the heat insulation device 20 to move along the first direction X (vertical direction), thereby realizing the movement of the heat insulation device 20 in three directions.

[0113] In addition, the overhead crane can also be used as the original working equipment in the energy storage device 200 workshop. Therefore, when the mobile device 10 uses the overhead crane, the equipment originally in the workshop can be directly utilized, reducing the production cost.

[0114] The handling robot (not shown in the figure) is a device capable of driving the heat insulation device 20 to move horizontally. It may include a traveling mechanism, a body mounted on the traveling mechanism, and a clamping mechanism (such as a robotic arm) mounted on the body. The clamping mechanism is used to clamp and fix the heat insulation device 20, and then the traveling mechanism is used to drive the clamping mechanism and the heat insulation device 20 to move, so as to facilitate the control of the thermal diffusion of the out-of-control energy storage device 200.

[0115] In some embodiments, the handling robot can also be designed to include a lifting mechanism. The lifting mechanism is mounted on the body, and the clamping mechanism is mounted on the lifting mechanism. The lifting mechanism is used to drive the clamping mechanism and the heat insulation device 20 to move in the vertical direction, thereby realizing the movement of the heat insulation device 20 in three directions.

[0116] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the specific embodiments of the present application are hereinafter specifically exemplified.

[0117] Combined with the attached Figures 1-6As shown in the figure, an embodiment of the present application provides a thermal barrier device 100 for an energy storage system, which includes a moving device 10 and a heat insulation device 20. The heat insulation device 20 includes a heat insulation member 21 and a locking mechanism 22. The locking mechanism 22 is connected to the heat insulation member 21 and is used to lock the heat insulation member 21 in a received state. In the received state, the heat insulation member 21 is in a folded or wound state. The locking mechanism 22 is configured to be able to release the locking of the heat insulation member 21 so that the heat insulation member 21 can be switched between the received state and the unfolded state; the moving device 10 is connected to the heat insulation device 20 and is used to drive the heat insulation device 20 to move. The heat insulation member 21 includes a first shaft portion 211, a flexible heat insulation portion 212, and a second shaft portion 213. The first shaft portion 211 is used to connect the moving device 10. The flexible heat insulation portion 212 has a first end 2121 and a second end 2122. The first end 2121 is connected to the first shaft portion 211, and the second end 2122 is connected to the second shaft portion 213. In the received state, at least a part of the flexible heat insulation portion 212 is received between the first shaft portion 211 and the second shaft portion 213. The flexible heat insulation portion 212 is folded between the first shaft portion 211 and the second shaft portion 213 to switch to the received state. From the first end 2121 to the second end 2122, the flexible heat insulation portion 212 is provided with a plurality of creases 2123 at intervals. The flexible heat insulation portion 212 is wound around the first shaft portion 211 and / or the second shaft portion 213 to switch to the received state. A counterweight 2131 is installed on the second shaft portion 213. The locking mechanism 22 is configured to release the locking of the heat insulation member 21 at a preset temperature. The locking mechanism 22 includes a binding member 221. The binding member 221 is used to bind the heat insulation member 21 in the received state. The melting point of the binding member 221 is less than the melting point of the heat insulation member 21 and less than or equal to the preset temperature. The locking mechanism 22 includes a binding member 221 and a switch assembly 222. The binding member 221 has a first connection end 2211 and a second connection end 2212. The first connection end 2211 and the second connection end 2212 are connected through the switch assembly 222 to enclose a binding sleeve capable of locking the heat insulation member 21. The switch assembly 222 is configured to release the connection between the first connection end 2211 and the second connection end 2212 at the preset temperature to release the locking of the heat insulation member 21. The switch assembly 222 includes a temperature detection member 2221, a control circuit, a first electromagnetic member 2222, and a second electromagnetic member 2223. The control circuit is respectively connected to the temperature detection member 2221, the first electromagnetic member 2222, and the second electromagnetic member 2223, and is used to disconnect or close the magnetic connection between the first electromagnetic member 2222 and the second electromagnetic member 2223. The moving device 10 is configured to be able to drive the heat insulation member 21 to move along a first direction X and a second direction Y respectively. The first direction X is the arrangement direction from the moving device 10 to the heat insulation member 21, and the second direction Y intersects the first direction X. The moving device 10 is a crane or a handling robot.

[0118] Second aspect, an embodiment of the present application provides an energy storage system, including an energy storage device 200 and the thermal barrier device 100 of the energy storage system as described in the above technical solution. The thermal barrier device 100 of the energy storage system is configured to be movable to face the heat diffusion surface of the energy storage device 200 to block the heat diffusion of the energy storage device 200. Wherein, the heat diffusion surface may be any surface of the energy storage device 200 that undergoes thermal runaway.

[0119] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other.

[0120] 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 foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features, but these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A thermal barrier device for an energy storage system, characterized in that, Comprising: A heat insulation device, which includes a heat insulation member and a locking mechanism. The locking mechanism is connected to the heat insulation member and is used to lock the heat insulation member in a received state. In the received state, the heat insulation member is in a folded or wound state. The locking mechanism is configured to be able to release the locking of the heat insulation member so that the heat insulation member can be switched between the received state and the deployed state; And A moving device, which is connected to the heat insulation device and is used to drive the heat insulation device to move.

2. The thermal barrier device of the energy storage system according to claim 1, characterized in that The heat insulation member includes a first shaft portion, a flexible heat insulation portion, and a second shaft portion. The first shaft portion is used to connect to the moving device. The flexible heat insulation portion has a first end and a second end. The first end is connected to the first shaft portion, and the second end is connected to the second shaft portion. In the received state, at least a part of the flexible heat insulation portion is received between the first shaft portion and the second shaft portion.

3. The thermal barrier device of the energy storage system according to claim 2, wherein The flexible heat insulation portion is folded between the first shaft portion and the second shaft portion to switch to the received state.

4. The thermal barrier device of the energy storage system according to claim 3, characterized in that, From the first end to the second end, the flexible heat insulation portion is provided with a plurality of creases at intervals.

5. The thermal barrier device of the energy storage system according to claim 2, characterized in that, The flexible heat insulation portion is wound around the first shaft portion and / or the second shaft portion to switch to the received state.

6. The thermal barrier device of the energy storage system according to claim 5, characterized in that, A counterweight is installed on the second shaft portion.

7. The thermal barrier device of the energy storage system according to any one of claims 1-6, characterized in that, The locking mechanism is configured to release the locking of the received state at a preset temperature.

8. The thermal barrier device of the energy storage system according to claim 7, characterized in that, The locking mechanism includes a binding member, which is used to bind the heat insulation member in the received state. The melting point of the binding member is less than the melting point of the heat insulation member and less than or equal to the preset temperature.

9. The thermal barrier device of the energy storage system according to claim 7, characterized in that, The locking mechanism includes a binding member and a switch assembly. The binding member has a first connection end and a second connection end. The first connection end and the second connection end are connected through the switch assembly to enclose a binding sleeve capable of locking the heat insulation member. The switch assembly is configured to release the connection between the first connection end and the second connection end when the preset temperature is reached to release the locking of the heat insulation member.

10. The thermal barrier device of the energy storage system according to claim 9, characterized in that, The switch assembly includes a temperature detection member, a control circuit, a first electromagnetic member, and a second electromagnetic member. The control circuit is respectively connected to the temperature detection member, the first electromagnetic member, and the second electromagnetic member, and is used to disconnect or close the magnetic connection between the first electromagnetic member and the second electromagnetic member.

11. The thermal barrier device for the energy storage system according to any one of claims 1-6, characterized in that, The moving device is configured to be able to drive the heat insulation member to move along a first direction and a second direction respectively. The first direction is the arrangement direction from the moving device to the heat insulation member, and the second direction intersects the first direction.

12. The thermal barrier device of the energy storage system according to any one of claims 1-6, characterized in that, The moving device is a crane or a handling robot.

13. An energy storage system, characterized in that, A heat barrier device including an energy storage device and the energy storage system according to any one of claims 1-12, the heat barrier device being configured to be able to move to face the heat dissipation surface of the energy storage device and being used to block the heat dissipation of the energy storage device.

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