Energy storage devices and energy storage systems

Abstract

This application discloses an energy storage device and system, relating to the technical field of energy storage. The energy storage device includes: a shell structure and a pressure relief mechanism; the shell structure has a connecting surface and a pressure relief port formed on the connecting surface; the pressure relief mechanism is located on the connecting surface to close the pressure relief port and can rotate to open the pressure relief port, the pressure relief mechanism has a guide surface located in its own rotation direction; the rotation axis of the pressure relief mechanism is parallel to the connecting surface and intersects with the flow direction of the external airflow; when the pressure relief mechanism rotates to a predetermined position to open the pressure relief port, the guide surface intersects with the connecting surface and is located on the flow path of the external airflow. Thus, by setting the pressure relief mechanism to intersect with the connecting surface and be located on the flow path of the external airflow after rotating to the predetermined position, the guide surface can change the flow direction of the external airflow to block the path of the high-temperature smoke and flame released from the pressure relief port by the external airflow, thereby improving the fire isolation effect between adjacent energy storage devices.

Description

Technical Field

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

[0002] Currently, multiple energy storage containers are usually densely arranged in the same area. In windy conditions, when an energy storage container opens its pressure relief port due to an accident such as a fire, releasing high-temperature smoke and flames, the external airflow will guide the high-temperature smoke and flames to the adjacent energy storage containers, causing a chain reaction of high temperatures in multiple energy storage containers in the adjacent area. Utility Model Content

[0003] This application provides an energy storage device and energy storage system, which aims to solve the problem that the high-temperature flue gas and flames released by existing energy storage devices can easily affect adjacent energy storage devices.

[0004] To address the aforementioned problems, this application provides an energy storage device comprising: a housing mechanism and a pressure relief mechanism; the housing mechanism having a connecting surface and a pressure relief port formed on the connecting surface; the pressure relief mechanism being located on the connecting surface to close the pressure relief port and being rotatable to open the pressure relief port, and the pressure relief mechanism having a guide surface located in its own rotation direction; wherein, the rotation axis of the pressure relief mechanism is parallel to the connecting surface and intersects with the flow direction of the external airflow; when the pressure relief mechanism rotates to a predetermined position to open the pressure relief port, the guide surface intersects with the connecting surface and is located on the flow path of the external airflow.

[0005] In the above scheme, the pressure relief mechanism with a closed pressure relief port can be rotated to open the pressure relief port. The rotation axis of the pressure relief mechanism is parallel to the connecting surface where the pressure relief port is formed and intersects with the flow direction of the external airflow. This ensures that when the pressure relief mechanism rotates to a predetermined position to open the pressure relief port, the guide surface located in the rotation direction of the pressure relief mechanism can not only intersect with the connecting surface but also be located on the flow path of the external airflow. Thus, when the pressure relief mechanism opens the pressure relief port to release high-temperature flue gas and flames, the guide surface can change the flow direction of the external airflow on the connecting surface, thereby blocking the path of the high-temperature flue gas and flames released from the pressure relief port, which are guided by the external airflow, thus improving the fireproof isolation effect between adjacent energy storage devices.

[0006] In one embodiment, the pressure relief mechanism includes: a base assembly and a baffle assembly; the base assembly is rotatably connected to the housing mechanism, and the rotation axis of the base assembly is perpendicular to the connecting surface; the baffle assembly closes the pressure relief port and is rotatably connected to the base assembly, and the baffle assembly is rotatable to open the pressure relief port; the rotation axis of the baffle assembly is parallel to the connecting surface, and the guide surface is the side of the baffle assembly located in its own rotation direction; the base assembly is configured to rotate with the change of the flow direction of the external airflow, so that the rotation axis of the baffle assembly intersects with the flow direction of the external airflow.

[0007] Therefore, by setting the base assembly to be rotatably connected to the housing mechanism and being able to rotate with the change of the direction of the external airflow, and with the rotation axis of the base assembly being perpendicular to the connection surface, when the direction of the external airflow changes, the base assembly can rotate to adjust the rotation axis of the baffle assembly to intersect with the direction of the external airflow, so as to ensure that the guide surface is located on the flow path of the external airflow after the pressure relief port is opened, thereby improving the applicability of the pressure relief mechanism in complex wind environments.

[0008] In one embodiment, the pressure relief mechanism includes a drive assembly connected to a base assembly, and the drive assembly is configured to drive the base assembly to rotate as the direction of external airflow changes.

[0009] Therefore, by setting the drive component to be connected to the base component and being able to drive the base component to rotate according to the change of the external airflow direction, when the external airflow direction changes, the base component can adaptively rotate under the drive of the drive component to adjust the rotation axis of the baffle component to intersect with the external airflow direction, thereby ensuring that the guide surface is located on the flow path of the external airflow after the pressure relief port is opened.

[0010] In one embodiment, the driving component includes: a wind vane and a connector; the arrow of the wind vane points to the rotation axis of the baffle assembly, and the connector connects the base assembly and the wind vane respectively; when the external airflow passes over the wind vane, the wind vane rotates under the action of the external airflow, and drives the base assembly to rotate through the connector.

[0011] Therefore, by setting the arrow of the wind vane to intersect with the rotation axis of the baffle assembly, when the direction of the external airflow changes, the wind vane can rotate with the change of the external airflow direction, and drive the base assembly to rotate synchronously through the connecting parts, thereby ensuring that the rotation axis of the baffle assembly can remain intersecting with the direction of the external airflow.

[0012] In one embodiment, the driving assembly includes a driving member, a transmission member, and a detection member; the detection member is electrically connected to the driving member and configured to detect the direction of external airflow; the driving member is configured to drive the transmission member according to the detection result, so that the transmission member drives the base assembly to rotate.

[0013] Therefore, by setting the detection component and the driving component to be electrically connected and used to detect the direction of the external airflow, the driving component can drive the transmission component to move according to the detection result of the detection component, so that the base assembly can be rotated according to the change of the direction of the external airflow through the transmission component, thereby ensuring that the rotation axis of the baffle assembly can be intersected with the direction of the external airflow.

[0014] In one embodiment, the pressure relief mechanism includes: a limiting component; the limiting component is connected to the base assembly and the baffle assembly, and when the baffle assembly rotates to a predetermined position, the limiting component engages with the baffle assembly to keep the baffle assembly in the predetermined position.

[0015] Therefore, by setting a limiting component to connect the base component and the baffle component, and when the baffle component rotates to a predetermined position, the baffle component engages with the limiting component and can remain in the predetermined position, so that the guide surface can remain intersecting with the connecting surface after the pressure relief port is opened, so as to change the direction of the external airflow.

[0016] In one embodiment, the limiting component includes: a connecting frame and an elastic snap-fit ​​member; the connecting frame is disposed on the base assembly and has a sliding groove facing the baffle assembly, and a slot is formed on the bottom wall of the sliding groove; the elastic snap-fit ​​member is connected to the baffle assembly, and a portion of the elastic snap-fit ​​member is located in the sliding groove and abuts against the bottom wall of the sliding groove; the elastic snap-fit ​​member is configured to slide in the sliding groove as the baffle assembly rotates, and when the baffle assembly rotates to a predetermined position, the elastic snap-fit ​​member snaps into the slot to engage with the connecting frame and limit the rotation of the baffle assembly.

[0017] Therefore, by setting a connecting frame on the base assembly, and the connecting frame having a sliding groove facing the baffle assembly, and a slot formed on the bottom wall of the sliding groove, and the elastic snap-fit ​​member on the baffle assembly being able to slide in the sliding groove as the baffle assembly rotates, and being able to snap into the slot when the baffle assembly rotates to a predetermined position, the elastic snap-fit ​​member and the connecting frame can be snapped together to restrict the rotation of the baffle assembly, so as to achieve the baffle assembly staying at the predetermined position.

[0018] In one embodiment, the baffle assembly is located in its own rotation direction, and the side closer to or farther from the pressure relief port is the flow guide surface.

[0019] Therefore, by setting the side of the baffle assembly located in its own rotation direction and close to or away from the pressure relief port as the flow guiding surface, both the inner and outer sides of the baffle assembly facing or away from the pressure relief port can be used as flow guiding surfaces to meet the usage requirements in different environments.

[0020] In one embodiment, the pressure relief mechanism includes: a baffle assembly and a limiting assembly; the baffle assembly closes the pressure relief port and is rotatable to open the pressure relief port; the rotation axis of the baffle assembly is parallel to the connecting surface, and the guiding surface is the side of the baffle assembly located in its own rotation direction; the limiting assembly connects the housing mechanism and the baffle assembly, and when the baffle assembly rotates to a predetermined position, the limiting assembly engages with the baffle assembly to keep the baffle assembly in the predetermined position.

[0021] Therefore, by setting a limiting component to connect the housing mechanism and the baffle assembly, and when the baffle assembly rotates to a predetermined position, the baffle assembly engages with the limiting component and can remain in the predetermined position, so that the guide surface can remain intersecting with the connecting surface after the pressure relief port is opened, so as to change the direction of the external airflow.

[0022] In one embodiment, the base assembly includes: a rotating seat; a housing mechanism having a frustum disposed opposite to the baffle assembly, and the side of the frustum facing the baffle assembly being a connecting surface; the rotating seat is disposed on the frustum and can rotate along the circumference of the frustum, and the rotation axis of the rotating seat is perpendicular to the connecting surface.

[0023] Therefore, by setting a rotating seat on the truncated cone of the housing mechanism and being able to rotate around the circumference of the truncated cone, and with the rotation axis of the rotating seat perpendicular to the connecting surface, the base assembly can achieve a rotational connection with the housing mechanism through the rotational engagement of the rotating seat and the truncated cone.

[0024] In one embodiment, the base assembly further includes a rolling element; the rolling element is located between the circumference of the rotating seat and the frustum, and rolls between the rotating seat and the frustum when the rotating seat rotates.

[0025] Therefore, by setting rolling elements between the rotating seat and the circumference of the frustum, the friction between the rotating seat and the frustum is reduced, which helps the rotating seat to rotate relative to the frustum and reduces the probability of the rotating seat getting stuck during rotation.

[0026] In one embodiment, the baffle assembly includes: a heat-resistant plate and a hinge; the hinge connects the heat-resistant plate and the rotating seat, and the heat-resistant plate closes the pressure relief port and can rotate to open the pressure relief port; the rotation axis of the heat-resistant plate is parallel to the connecting surface, and the guiding surface is the side of the heat-resistant plate located in its own rotation direction.

[0027] Therefore, by setting a hinge to connect the heat-resistant plate and the rotating seat, the heat-resistant plate can be rotatably connected to the rotating seat, and the pressure relief port can be opened after rotation. This helps to reduce the probability of the baffle assembly melting under the influence of high-temperature flue gas and flames released from the pressure relief port.

[0028] In one embodiment, the gap between the base assembly and the housing mechanism, and the gap between the baffle assembly and the base assembly, are further provided with a fire-resistant sealing layer.

[0029] Therefore, by setting fire-resistant sealing layers in the gaps between the base assembly and the housing mechanism, and in the gaps between the baffle assembly and the base assembly, the overall sealing performance of the energy storage device can be improved, ensuring that the baffle assembly can be opened smoothly under pressure.

[0030] In one embodiment, the energy storage device further includes a battery module disposed within the housing structure.

[0031] Therefore, battery modules can be used to realize the energy storage function of energy storage devices.

[0032] This application also provides an energy storage system, which includes a plurality of the above-described energy storage devices.

[0033] In the above scheme, since the high-temperature flue gas and flames released by the energy storage device are less likely to be disturbed by external airflow, multiple energy storage devices can be arranged more densely in the same area, so that more energy storage devices can be arranged in the same area to increase the energy storage limit of the energy storage system. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0035] Figure 1 This is a simplified structural diagram of the energy storage device disclosed in the embodiments of this application;

[0036] Figure 2 This is another simplified structural diagram of the energy storage device disclosed in the embodiments of this application;

[0037] Figure 3 yes Figure 2 Side view of the middle housing mechanism and pressure relief mechanism;

[0038] Figure 4 This is a simplified structural diagram of part of the housing mechanism and pressure relief mechanism disclosed in the embodiments of this application;

[0039] Figure 5 This is another simplified structural diagram of part of the housing mechanism and pressure relief mechanism disclosed in the embodiments of this application;

[0040] Figure 6 yes Figure 4 A schematic diagram of the partial cross-sectional structure of the middle shell mechanism and the pressure relief mechanism along line V-V;

[0041] Figure 7 This is another simplified structural diagram of part of the housing mechanism and pressure relief mechanism disclosed in the embodiments of this application;

[0042] Figure 8 This is another simplified structural diagram of part of the housing mechanism and pressure relief mechanism disclosed in the embodiments of this application;

[0043] Figure 9 This is a simplified structural diagram of the pressure relief mechanism disclosed in the embodiments of this application;

[0044] Figure 10 yes Figure 9 Schematic diagram of the cross-sectional structure of the flexible snap-fit ​​connector;

[0045] Figure 11 This is another simplified structural diagram of the pressure relief mechanism disclosed in the embodiments of this application.

[0046] The attached figures are labeled as follows:

[0047] Energy storage device 10, housing mechanism 100, top surface 110, bottom surface 120, side surface 130, frustum 140, connecting surface 101, pressure relief port 102, pressure relief mechanism 200, flow guiding surface 201, base assembly 210, first surface 2101, second surface 2102, rotating seat 211, rolling element 212, baffle assembly 220, heat-resistant plate 221, hinge 222, fire-resistant sealing layer 230, drive assembly 240, wind vane 241, arrow End 2411, tail wing end 2412, connector 242, drive component 243, transmission component 244, detection component 245, limiting component 260, connecting frame 261, slide groove 2611, slot 2612, elastic snap-fit ​​component 262, guide part 2621, guide groove 26211, elastic part 2622, abutment part 2623, first connecting rod 263, second connecting rod 264, battery module 300, airflow direction Y, first axis L1, second axis L2. Detailed Implementation

[0048] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific implementation should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having” and any variations thereof are intended to cover non-exclusive inclusion.

[0050] In the description of the embodiments of this application, the technical terms "first", "second", "third", etc. are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0051] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0052] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0053] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0054] In some technical solutions, energy storage containers are typically equipped with pressure relief vents. These vents can be opened in the event of a fire or other accident to release the high-temperature smoke and flames inside the container, thereby reducing the risk of an explosion. However, under certain conditions such as strong winds, the released high-temperature smoke and flames can be easily guided by external airflow and spread towards neighboring energy storage containers. This could undoubtedly lead to a chain reaction of high temperatures in multiple energy storage containers in adjacent areas, thus expanding the scope of the accident.

[0055] To address the aforementioned technical problems, the energy storage device disclosed in this application, through a pressure relief mechanism with a closed pressure relief port, allows for the rotation of the port to open. The rotation axis of this mechanism is parallel to the connecting surface where the pressure relief port is formed and intersects with the flow direction of the external airflow. This ensures that when the pressure relief mechanism rotates to a predetermined position and opens the port, the guide surface located in the rotation direction of the mechanism not only intersects with the connecting surface but also lies within the flow path of the external airflow. Thus, when the pressure relief mechanism opens the port to release high-temperature smoke and flame, the guide surface alters the flow direction of the external airflow on the connecting surface, blocking the path of the high-temperature smoke and flame released from the pressure relief port, thereby improving the fireproof isolation effect between adjacent energy storage devices.

[0056] Please see Figures 1 to 3 , Figure 1 This is a simplified structural diagram of the energy storage device disclosed in the embodiments of this application. Figure 2 This is another simplified structural diagram of the energy storage device disclosed in the embodiments of this application. Figure 3 yes Figure 2 Side view of the middle housing mechanism and pressure relief mechanism.

[0057] The energy storage device disclosed in this application can be an energy storage container or an energy storage cabinet, etc. Figures 1 to 3 As shown, the energy storage device 10 may include a housing mechanism 100 and a pressure relief mechanism 200. The housing mechanism 100 has a connecting surface 101 and a pressure relief port 102 formed on the connecting surface 101. The pressure relief mechanism 200 is located on the connecting surface 101, closing the pressure relief port 102, and is rotatable to open the pressure relief port 102. The pressure relief mechanism 200 has a guide surface 201 located in its rotation direction. Simultaneously, the rotation axis of the pressure relief mechanism 200 is parallel to the connecting surface 101 and intersects with the flow direction of the external airflow. When the pressure relief mechanism 200 rotates to a predetermined position to open the pressure relief port 102, the guide surface 201 intersects with the connecting surface 101 and is located on the flow path of the external airflow.

[0058] The housing mechanism 100 can be used to house and protect various functional mechanisms required by the energy storage device 10, and the connecting surface 101 can be part of the outer surface of the housing mechanism 100. For example... Figures 1 to 2 As shown, the outer surface of the housing mechanism 100 may include a top surface 110, a bottom surface 120, and a side surface 130. The top surface 110 and bottom surface 120 are arranged opposite to each other, and the side surface 130 connects the top surface 110 and bottom surface 120. When the energy storage device 10 is arranged on a corresponding mounting surface, the bottom surface 120 may also be arranged opposite to the mounting surface, and the connecting surface 101 may be a part of the top surface 110 or the side surface 130. It is understood that the mounting surface referred to in this embodiment can be a surface used to place the energy storage device 10, specifically a ground surface or a tabletop, etc., which will not be listed and described in detail here.

[0059] The pressure relief port 102 can be formed on the connecting surface 101 and can connect the inside and outside of the housing mechanism 100. For example, the housing mechanism 100 can have a through hole or through groove connecting its inside and outside, and the through hole or through groove can form the aforementioned pressure relief port 102 on the connecting surface 101, so that the pressure relief port 102 can connect the inside and outside of the housing mechanism 100. When the energy storage device 10 is in a normal state, the pressure relief port 102 can be closed to improve the sealing of the housing mechanism 100. When the energy storage device 10 is in an abnormal state, that is, when an accident such as a fire occurs, the pressure relief port 102 can be opened to release the high-temperature smoke and flames inside the housing mechanism 100.

[0060] The pressure relief mechanism 200 is disposed on the connecting surface 101 and can close the pressure relief port 102. The pressure relief mechanism 200 can also be rotated to open the pressure relief port 102. Figures 1 to 3 As shown, the rotation axis of the pressure relief mechanism 200 can be a first axis L1, and the first axis L1 is parallel to the connecting surface 101, allowing the pressure relief mechanism 200 to rotate in a direction close to or away from the connecting surface 101. Specifically, when the pressure relief mechanism 200 is in its initial position, it can cover the pressure relief port 102, thus closing the pressure relief port 102. When the pressure relief mechanism 200 rotates to a predetermined position away from the connecting surface 101, it can be removed from the connecting surface 101, allowing the pressure relief port 102 to be opened.

[0061] When the environment where the energy storage device 10 is located is windy, the external airflow will generally flow in a direction parallel to the connecting surface 101, such as along... Figures 1 to 3 The airflow direction Y is shown. When an accident such as a fire occurs in the energy storage device 10 and the pressure relief port 102 is opened to release high-temperature smoke and flames, the external airflow will guide the high-temperature smoke and flames to propagate along the airflow direction Y. This makes it easy for the high-temperature smoke and flames to be sprayed onto adjacent energy storage devices 10, causing a chain reaction of high temperatures in adjacent energy storage devices 10. Based on this, the pressure relief mechanism 200 in this embodiment can also be used to change the direction of the external airflow after opening the pressure relief port 102, so as to block the path of the high-temperature smoke and flames released by the pressure relief port 102 guided by the external airflow, thereby improving the fireproof isolation effect between adjacent energy storage devices 10.

[0062] Specifically, the pressure relief mechanism 200 has a guide surface 201 located in its own rotation direction. When the pressure relief mechanism 200 rotates to a predetermined position and opens the pressure relief port 102, the guide surface 201 intersects with the connecting surface 101, allowing the guide surface 201 to be inclined relative to the connecting surface 101. Simultaneously, the rotation axis of the pressure relief mechanism 200 can also intersect with the flow direction of the external airflow, that is, the first axis L1 intersects with the airflow direction Y, so that the guide surface 201 can still be located on the flow path of the external airflow after the pressure relief port 102 is opened. Thus, when the pressure relief mechanism 200 rotates to the predetermined position, the inclined guide surface 201 can change the flow direction of the external airflow, allowing the external airflow to flow in a direction parallel to the guide surface 201, thereby blocking the path of the external airflow guiding high-temperature flue gas and flames to propagate along the airflow direction Y, thereby improving the fireproof isolation effect between adjacent energy storage devices 10.

[0063] For example, when the pressure relief mechanism 200 is in its initial position, the side of the pressure relief mechanism 200 facing the pressure relief port 102 can be abutted against the connecting surface 101, so that the pressure relief mechanism 200 can cover and block the pressure relief port 102 on the connecting surface 101, ensuring that the pressure relief port 102 is in a closed state. In this embodiment, when the pressure relief mechanism 200 is in its initial position, the guide surface 201 and the connecting surface 101 can be arranged in parallel. Of course, depending on different design requirements, the guide surface 201 can also be arranged to intersect with the connecting surface 101.

[0064] Furthermore, when the pressure relief mechanism 200 rotates to the predetermined position, the included angle α formed by the intersection of the guide surface 201 and the connecting surface 101 can be greater than 0° and less than 180°, allowing the guide surface 201 to be inclined relative to the connecting surface 101 to change the flow direction of the external airflow on the connecting surface 101. In this embodiment, the included angle α can be between 60° and 120°, specifically 60°, 70°, 80°, 90°, 100°, 110°, or 120°. Within this angle range, the guide surface 201 can better change the flow direction of the external airflow, and the pressure relief mechanism 200 obstructs high-temperature flue gas and flames less, which helps to reduce the probability of the pressure relief mechanism 200 melting due to the influence of high-temperature flue gas and flames.

[0065] Furthermore, the pressure relief mechanism 200 can be rotatably connected to the housing mechanism 100 as a whole, allowing the pressure relief mechanism 200 to rotate relative to the housing mechanism 100 to open the pressure relief port 102 at a predetermined position. Alternatively, the pressure relief mechanism 200 can be divided into a first part and a second part, with the first part fixed to the housing mechanism 100, and the second part closing the pressure relief port 102 and rotatably connected to the first part, allowing the second part to rotate to open the pressure relief port 102 at a predetermined position. That is, the pressure relief mechanism 200 can be directly or indirectly rotatably connected to the housing mechanism 100, enabling the pressure relief mechanism 200 to rotate to open the pressure relief port 102. In this embodiment, the first axis L1 can be perpendicular to the airflow direction Y, allowing the guide surface 201 to better guide the external airflow and change its direction, thereby improving the effect of the guide surface 201 in blocking the external airflow in the airflow direction Y.

[0066] Furthermore, the pressure relief mechanism 200 can rotate to a predetermined position under pressure to open the pressure relief port 102 and release high-temperature smoke and flames. That is, when the pressure inside the shell mechanism 100 of the energy storage device 10 reaches a preset value due to an accident such as a fire, the pressure relief mechanism 200 can rotate to a predetermined position under pressure to open the pressure relief port 102 and release high-temperature smoke and flames. Alternatively, the pressure relief mechanism 200 can rotate to a predetermined position under the driving force provided by a drive mechanism such as a motor. That is, when the detection mechanism corresponding to the energy storage device 10 detects that the pressure inside the shell mechanism 100 has reached a preset value, the energy storage device 10 can control the drive mechanism to drive the pressure relief mechanism 200 to rotate, so that the pressure relief mechanism 200 rotates to a predetermined position and opens the pressure relief port 102.

[0067] In the above scheme, the pressure relief mechanism 200, which is configured to close the pressure relief port 102, can rotate to open the pressure relief port 102. The rotation axis of the pressure relief mechanism 200 is parallel to the connecting surface 101 where the pressure relief port 102 is formed and intersects with the flow direction of the external airflow. This allows the guide surface 201, located in the rotation direction of the pressure relief mechanism 200, to not only intersect with the connecting surface 101 but also to be positioned on the flow path of the external airflow. Thus, when the pressure relief mechanism 200 opens the pressure relief port 102 to release high-temperature smoke and flame, the guide surface 201 can change the flow direction of the external airflow on the connecting surface 101, thereby blocking the path of the high-temperature smoke and flame released from the pressure relief port 102 and improving the fireproof isolation effect between adjacent energy storage devices 10.

[0068] Please see Figures 4 to 6 , Figure 4 This is a simplified structural diagram of part of the housing mechanism and pressure relief mechanism disclosed in the embodiments of this application. Figure 5 This is another simplified structural diagram of part of the housing mechanism and pressure relief mechanism disclosed in the embodiments of this application. Figure 6 yes Figure 4 A schematic diagram of the cross-sectional structure of the middle shell mechanism and the pressure relief mechanism along section V-V.

[0069] like Figures 4 to 6 As shown, considering that the direction of external airflow may change under certain environments, that is, the direction Y of external airflow is not unique, in order to ensure that the guide surface 201 can still be located on the flow path of external airflow after the direction of external airflow changes, the pressure relief mechanism 200 can also rotate around the second axis L2 perpendicular to the connecting surface 101, and can rotate to adjust the position of the guide surface 201 according to the change of airflow direction Y, so that the guide surface 201 can guide the external airflow with the change of flow direction, so as to ensure that the guide surface 201 can still be located on the flow path of external airflow after the direction of airflow Y changes.

[0070] To enable the pressure relief mechanism 200 to rotate about the first axis L1 and the second axis L2 respectively, the pressure relief mechanism 200 includes a base assembly 210 and a baffle assembly 220. Figures 4 to 6 As shown, the base assembly 210 is rotatably connected to the housing mechanism 100, and the rotation axis of the base assembly 210 is perpendicular to the connecting surface 101. The baffle assembly 220 closes the pressure relief port 102 and is rotatably connected to the base assembly 210, and the baffle assembly 220 can rotate to open the pressure relief port 102. Simultaneously, the rotation axis of the baffle assembly 220 is parallel to the connecting surface 101, and the guide surface 201 is the side of the baffle assembly 220 located in its own rotation direction. Furthermore, the base assembly 210 can rotate according to the change in the direction of the external airflow, so that the rotation axis of the baffle assembly 220 intersects with the direction of the external airflow.

[0071] Exemplarily, the base assembly 210 can be disposed on the housing mechanism 100 and rotatably connected to the housing mechanism 100, and the rotation axis of the base assembly 210 can be the aforementioned second axis L2. Simultaneously, the base assembly 210 can also be disposed around the connecting surface 101 and has a first surface 2101 and a second surface 2102 disposed opposite to each other on the second axis L2, with the first surface 2101 facing towards the housing mechanism 100 and the second surface 2102 facing away from the housing mechanism 100. In this embodiment, the connecting surface 101 can be flush with the second surface 2102, and both the connecting surface 101 and the pressure relief port 102 can be exposed on the second surface 2102.

[0072] Furthermore, the baffle assembly 220 is disposed on the second surface 2102 and is capable of closing the pressure relief port 102. Simultaneously, the baffle assembly 220 is rotatably connected to the base assembly 210 and is capable of rotating to open the pressure relief port 102. The rotation axis of the baffle assembly 220 can be the aforementioned first axis L1, allowing the baffle assembly 220 to rotate in a direction approaching or away from the connecting surface 101, while the guide surface 201 can be the side of the baffle assembly 220 located in its own rotation direction.

[0073] Furthermore, when the baffle assembly 220 is in its initial position, it can abut against the second surface 2102 and the connecting surface 101 to block the pressure relief port 102 on the connecting surface 101, thus keeping the pressure relief port 102 closed. In this embodiment, when the baffle assembly 220 is in its initial position, the guide surface 201 and the connecting surface 101 can be arranged in parallel. Of course, depending on the design requirements, the guide surface 201 can also be arranged to intersect with the connecting surface 101.

[0074] Furthermore, when the baffle assembly 220 rotates to a predetermined position in a direction away from the connecting surface 101, the baffle assembly 220 can be moved away from the second surface 2102 and the connecting surface 101 to open the pressure relief port 102 on the connecting surface 101. At the same time, the guide surface 201 can remain intersecting with the connecting surface 101, so that the guide surface 201 can be inclined relative to the connecting surface 101 to change the flow direction of the external airflow on the connecting surface 101.

[0075] In some embodiments, besides the connecting surface 101 and the second surface 2102 being flush, the second surface 2102 may also protrude from the connecting surface 101, allowing the base assembly 210 to surround the through hole or through groove forming the pressure relief port 102. In this case, the baffle assembly 220 can block the opening formed on the second surface 2102 by the aforementioned through hole or through groove, thereby indirectly sealing the pressure relief port 102. Alternatively, a portion of the baffle assembly 220 may also protrude within the aforementioned through hole or through groove to directly block the pressure relief port 102 on the connecting surface 101.

[0076] In some embodiments, the connecting surface 101 may protrude from the second surface 2102, and the side of the baffle assembly 220 facing the second surface 2102 may be recessed to form a relief groove to accommodate a portion of the housing mechanism 100 having the connecting surface 101. The bottom wall of the relief groove may also fit against the connecting surface 101 to seal the pressure relief port 102 on the connecting surface 101. Alternatively, the baffle assembly 220 may be spaced apart from the second surface 2102 to fit against the connecting surface 101 and seal the pressure relief port 102. In this case, the gap between the second surface 2102 and the baffle assembly 220 may be filled with a fire-resistant sealing material to improve the overall sealing performance of the energy storage device 10.

[0077] In some embodiments, the base assembly 210 can not only surround the connecting surface 101, but also cover the connecting surface 101 on the second axis L2, so that the connecting surface 101 can be hidden. In this case, the second surface 2102 of the base assembly 210 can be formed with a through hole or through groove communicating with the pressure relief port 102, and the baffle assembly 220 can block the opening formed on the second surface 2102 by the aforementioned through hole or through groove, so as to indirectly close the pressure relief port 102. Alternatively, a portion of the baffle assembly 220 can also protrude into the aforementioned through hole or through groove, so as to indirectly close the pressure relief port 102 by blocking the through hole or through groove.

[0078] Furthermore, the base assembly 210 can rotate according to the change in the direction of the external airflow to adjust the position of the baffle assembly 220, so that the rotation axis of the baffle assembly 220, that is, the first axis L1, can remain intersecting with the airflow direction Y, thereby ensuring that the guide surface 201 is located on the flow path of the external airflow after the pressure relief port 102 is opened. For example, when the airflow direction Y changes from... Figure 4 The direction transformation shown is Figure 5 When the direction shown is as indicated, the base assembly 210 can rotate according to the change in the airflow direction Y, and drive the baffle assembly 220 to rotate synchronously, so that the first axis L1 can be adjusted to be aligned with the direction shown. Figure 5 The state of intersecting airflow directions Y is shown to ensure that the guide surface 201 can be located on the flow path of the external airflow after the pressure relief port 102 is opened, thereby guiding the change of the flow direction of the external airflow.

[0079] In the above scheme, by setting the base assembly 210 to be rotatably connected to the housing mechanism 100 and being able to rotate with the change of the direction of the external airflow, and the rotation axis of the base assembly 210 being perpendicular to the connecting surface 101, when the direction of the external airflow changes, the base assembly 210 can rotate to adjust the rotation axis of the baffle assembly 220 to intersect with the direction of the external airflow, so as to ensure that the guide surface 201 is located on the flow path of the external airflow after the pressure relief port 102 is opened, thereby improving the applicability of the pressure relief mechanism 200 in complex wind environments. This helps to improve the fireproof isolation effect between the energy storage device 10 and the adjacent energy storage devices 10.

[0080] In some embodiments, when the pressure relief mechanism 200 can rotate about the first axis L1 and the second axis L2 respectively, the connecting surface 101 can be a part of the top surface 110, so that the pressure relief mechanism 200 can be disposed on the top surface 110 to meet the requirement of large changes in the flow direction of the external airflow on the top surface 110. Of course, depending on the design requirements, the connecting surface 101 can also be a part of the side surface 130, so that the pressure relief mechanism 200 can be disposed on the side surface 130 to meet the corresponding usage requirements.

[0081] In some embodiments, when the pressure relief mechanism 200 can only rotate about the first axis L1, the connecting surface 101 can be a part of the side surface 130. That is, since the flow direction of the external airflow guiding the high-temperature flue gas and flame toward the adjacent energy storage device 10 on the side surface 130 is relatively fixed, when setting the pressure relief mechanism 200, it is only necessary to ensure that the first axis L1 can intersect with the flow direction of the aforementioned external airflow, so that the guide surface 201 can be located on the flow path of the external airflow after the pressure relief port 102 is opened, without having to set the pressure relief mechanism 200 to be able to rotate about the second axis L2, which helps to simplify the structure of the pressure relief mechanism 200.

[0082] In some embodiments, when multiple energy storage devices 10 are arranged in a special configuration such as a line, external airflow will only cause high-temperature flue gas and flames to propagate towards adjacent energy storage devices 10 if the external airflow flows in the direction in which the multiple energy storage devices 10 are arranged. Based on this, if the pressure relief mechanism 200 can only rotate about the first axis L1, the position of the pressure relief mechanism 200 can also be set according to the direction in which the multiple energy storage devices 10 are arranged, so that the first axis L1 can intersect with the direction in which the multiple energy storage devices 10 are arranged, ensuring that the guide surface 201 can block the external airflow flowing along the direction in which the multiple energy storage devices 10 are arranged, thereby improving the fireproof isolation effect between adjacent energy storage devices 10.

[0083] Please refer to it again. Figures 4 to 6 To achieve a rotatable connection between the base assembly 210 and the housing mechanism 100, the base assembly 210 includes a rotating seat 211. The housing mechanism 100 has a frustum 140 disposed opposite to the baffle assembly 220, and the side of the frustum 140 facing the baffle assembly 220 is a connecting surface 101. The rotating seat 211 can be disposed on the frustum 140 and can rotate along the circumference of the frustum 140, and the rotation axis of the rotating seat 211 is perpendicular to the connecting surface 101.

[0084] A portion of the housing mechanism 100 may protrude along the second axis L2, forming the aforementioned frustum 140, such that the periphery of the frustum 140 may be parallel to the second axis L2. Simultaneously, the frustum 140 may also be disposed opposite to the baffle assembly 220 on the second axis L2, and the side of the frustum 140 facing the second baffle assembly 220 may be the aforementioned connecting surface 101, and may have the aforementioned pressure relief port 102 formed thereon.

[0085] The center of the frustum 140 can coincide with the second axis L2. A rotating seat 211 is disposed around the frustum 140. The rotating seat 211 can be annular and can rotate along the circumference of the frustum 140, such that the axis of rotation of the rotating seat 211 is perpendicular to the connecting surface 101. In this embodiment, the rotating seat 211 can have the aforementioned first surface 2101 and second surface 2102, and the axis of rotation of the rotating seat 211 is the aforementioned second axis L2, thereby achieving a rotational connection between the base assembly 210 and the housing mechanism 100.

[0086] In the above scheme, by setting a rotating seat 211 on the frustum 140 of the housing mechanism 100 and being able to rotate around the periphery of the frustum 140, and the rotation axis of the rotating seat 211 being perpendicular to the connecting surface 101, the base assembly 210 can achieve a rotational connection with the housing mechanism 100 through the rotational cooperation of the rotating seat 211 and the frustum 140.

[0087] In some embodiments, the housing mechanism 100 may also have a recessed groove, and the bottom wall of the groove may have the aforementioned connecting surface 101. Meanwhile, the base assembly 210 may have a boss protruding from the groove, and the boss may rotate along the side wall of the groove, and the rotation axis of the boss may be a second axis L2, so as to realize the rotational connection between the base assembly 210 and the housing mechanism 100 by means of the rotational cooperation of the groove and the boss.

[0088] In some embodiments, the base assembly 210 and the housing mechanism 100 can be rotatably connected in various ways, as long as the rotation axis of the base assembly 210, that is, the aforementioned second axis L2, can be perpendicular to the connecting surface 101. This embodiment will not list them one by one.

[0089] To reduce rotational friction between the frustum 140 and the rotating seat 211, the base assembly 210 may further include a rolling element 212. The rolling element 212 is located between the rotating seat 211 and the periphery of the frustum 140, and rolls between the rotating seat 211 and the frustum 140 when the rotating seat 211 rotates.

[0090] The rolling element 212 can be disposed between the circumference of the rotating seat 211 and the frustum 140, and can convert the rotational friction between the rotating seat 211 and the frustum 140 into rolling friction, thereby reducing the rotational resistance between the rotating seat 211 and the frustum 140. Furthermore, there can be multiple rolling elements 212, and these multiple rolling elements 212 can be evenly distributed along the circumference of the frustum 140 between the rotating seat 211 and the frustum 140 to improve the rotational stability of the rotating seat 211 and the frustum 140. Specifically, the rolling element 212 can be a bearing ball or a roller parallel to the second axis L2; ​​it only needs to be able to roll with the rotation of the rotating seat 211.

[0091] In the above scheme, by providing a rolling element 212 between the rotating seat 211 and the circumference of the frustum 140, the friction between the rotating seat 211 and the frustum 140 is reduced. This helps the rotating seat 211 to rotate relative to the frustum 140, thereby reducing the probability of the rotating seat 211 getting stuck during rotation, and thus facilitating the rotation of the base assembly 210 to adjust the position of the guide surface 201.

[0092] To achieve a rotatable connection between the base assembly 210 and the baffle assembly 220, the baffle assembly 220 may include a heat-resistant plate 221 and a hinge 222. For example... Figure 6As shown, the hinge 222 connects the heat-resistant plate 221 and the rotating seat 211, and the heat-resistant plate 221 closes the pressure relief port 102, but can rotate to open the pressure relief port 102. The rotation axis of the heat-resistant plate 221 is parallel to the connecting surface 101, and the guide surface 201 is the side of the heat-resistant plate 221 located in its own rotation direction.

[0093] The heat-resistant plate 221 can be disposed on the second surface 2102 and can close the pressure relief port 102 on the connecting surface 101. The hinge 222 can specifically be a hinge or a hinge joint, and is connected to the heat-resistant plate 221 and the rotating seat 211 respectively, so that the heat-resistant plate 221 can rotate through the hinge 222. The rotation axis of the heat-resistant plate 221 is the aforementioned first axis L1, so that the heat-resistant plate 221 can rotate in the direction of approaching or moving away from the connecting surface 101, and the side of the heat-resistant plate 221 located in its own rotation direction can be the aforementioned guide surface 201.

[0094] When the heat-resistant plate 221 is in its initial position, it can fit against the second surface 2102 and the connecting surface 101 to seal the pressure relief port 102 on the connecting surface 101. When the heat-resistant plate 221 rotates to a predetermined position away from the connecting surface 101, the guide surface 201 can intersect with the connecting surface 101 and be located on the flow path of the external airflow to guide the external airflow on the connecting surface 101, thereby blocking the path for the external airflow to guide the propagation of high-temperature flue gas and flame.

[0095] In this embodiment, the material of the heat-resistant plate 221 can be any of the high-temperature plastics such as polyphenylene sulfide, polyimide, polyetheretherketone, or high-temperature nylon, so that the heat-resistant plate 221 can have high-temperature resistance. This not only helps to achieve the lightweight design of the heat-resistant plate 221, but also helps to reduce the probability of the heat-resistant plate 221 being damaged under high-temperature flue gas and flame.

[0096] In some embodiments, in addition to the heat-resistant plate 221, the base assembly 210 may also be made of the aforementioned high-temperature plastic or other high-temperature resistant materials, which helps to reduce the probability of the pressure relief mechanism 200 being damaged under high-temperature flue gas and flame.

[0097] In the above scheme, by setting a hinge 222 to connect the heat-resistant plate 221 and the rotating seat 211, the heat-resistant plate 221 can be rotatably connected to the rotating seat 211, and the pressure relief port 102 can be opened after rotation. This helps to reduce the probability of the baffle assembly 220 melting under the influence of high-temperature flue gas and flame released from the pressure relief port 102.

[0098] In some embodiments, in addition to the hinge 222 described above, the heat-resistant plate 221 may also be rotatably connected to the rotating seat 211 through other rotating structures, which will not be listed in detail in this embodiment.

[0099] Please refer to it again. Figure 6 In order to improve the sealing performance of the energy storage device 10, a fire-resistant sealing layer 230 is provided for the gap between the base assembly 210 and the housing mechanism 100, and the gap between the baffle assembly 220 and the base assembly 210.

[0100] Considering assembly tolerances, there are generally gaps between the base assembly 210 and the housing mechanism 100, and between the baffle assembly 220 and the base assembly 210. Therefore, the gaps between the base assembly 210 and the housing mechanism 100, and between the baffle assembly 220 and the base assembly 210, can also be filled with fire-resistant sealing material to form a fire-resistant sealing layer 230 to seal the aforementioned gaps, thereby improving the overall sealing performance of the energy storage device 10.

[0101] For example, a fire-resistant sealing material can be filled between the heat-resistant plate 221 and the second surface 2102 to form the aforementioned fire-resistant sealing layer 230. And / or, a fire-resistant sealing material can be filled between the heat-resistant plate 221 and the connecting surface 101 to form the aforementioned fire-resistant sealing layer 230. And / or, a fire-resistant sealing material can be filled between the rotating seat 211 and the housing mechanism 100 to form the aforementioned fire-resistant sealing layer 230. The fire-resistant sealing layer 230 can be formed from a fire-resistant sealing material such as ceramic fibers (e.g., aluminosilicate fibers), refractory cement, or castable filled in the aforementioned gaps. Alternatively, the fire-resistant sealing layer 230 can be an expansion sealing strip.

[0102] In the above scheme, by providing a fire-resistant sealing layer 230 in the gap between the base assembly 210 and the housing mechanism 100, and in the gap between the baffle assembly 220 and the base assembly 210, the overall sealing performance of the energy storage device 10 can be improved, so as to ensure that the baffle assembly 220 can be opened smoothly under pressure.

[0103] It is understood that, in addition to the location shown in the above embodiment where the fire-resistant sealing layer 230 can be provided, when the specific structure of the base assembly 210 and the baffle assembly 220 is adapted according to the design requirements, the fire-resistant sealing layer 230 can also be provided in other locations where there may be gaps after the base assembly 210, the baffle assembly 220 and the housing mechanism 100 are assembled. These will not be listed one by one in this embodiment.

[0104] Please see Figures 7 to 8 , Figure 7 This is another simplified structural diagram of part of the housing mechanism and pressure relief mechanism disclosed in the embodiments of this application. Figure 8 This is another simplified structural diagram of part of the housing mechanism and pressure relief mechanism disclosed in the embodiments of this application.

[0105] like Figures 7 to 8As shown, in order to enable the base assembly 210 to rotate with the change of external airflow, the pressure relief mechanism 200 includes a drive assembly 240 connected to the base assembly 210, and the drive assembly 240 can drive the base assembly 210 to rotate with the change of the flow direction of the external airflow, so that the rotation axis of the baffle assembly 220 intersects with the flow direction of the external airflow.

[0106] When the direction of the external airflow changes, the drive component 240 can generate a driving force according to the change in the direction of the external airflow, so as to drive the base component 210 to rotate with the change in the direction of the external airflow. This ensures that after the direction of the external airflow changes, the first axis L1 can still be intersected with the direction of the external airflow, thereby ensuring that the guide surface 201 can be located on the flow path of the external airflow after the pressure relief port 102 is opened.

[0107] In the above scheme, by setting the drive component 240 to be connected to the base component 210 and being able to drive the base component 210 to rotate according to the change of the external airflow direction, the base component 210 can adaptively rotate under the drive of the drive component 240 when the external airflow direction changes, so as to adjust the rotation axis of the baffle component 220 to intersect with the external airflow direction, thereby ensuring that the guide surface 201 is located on the flow path of the external airflow after the pressure relief port 102 is opened.

[0108] like Figure 7 As shown, in order to drive the base assembly 210 to rotate according to the changing direction of the external airflow, the drive assembly 240 may include a wind vane 241 and a connector 242. The arrow of the wind vane 241 intersects the rotation axis of the baffle assembly 220, and the connector 242 connects the base assembly 210 and the wind vane 241. When the external airflow passes over the wind vane 241, the wind vane 241 rotates under the action of the external airflow, and drives the base assembly 210 to rotate via the connector 242.

[0109] Because the wind resistance at the arrow end 2411 of the wind vane 241 is less than that at the tail fin end 2412, meaning the area of ​​the arrow end 2411 is smaller than the area of ​​the tail fin end 2412, the wind vane 241 will rotate due to the difference in wind resistance between the arrow end 2411 and the tail fin end 2412 when external airflow passes over it. The connector 242 can be a rotating shaft coinciding with the second axis L2, and it can connect the wind vane 241 and the base assembly 210, such as connecting the wind vane 241 and the rotating seat 211. When the wind vane 241 rotates, the connector 242 synchronously drives the rotating seat 211 to rotate, allowing the base assembly 210 to rotate according to the direction of the external airflow.

[0110] Meanwhile, since the arrow tip 2411 of the wind vane 241 always points towards the direction of the external airflow, the arrow of the wind vane 241 will always coincide with the direction of the external airflow, regardless of how the direction of the external airflow changes. Based on this, by setting the arrow of the wind vane 241 to intersect with the rotation axis of the baffle assembly 220, that is, with the first axis L1, the first axis L1 can also maintain an intersection with the direction of the external airflow, regardless of how the direction of the external airflow changes. This ensures that the guide surface 201 can be located on the flow path of the external airflow after the pressure relief port 102 is opened, thereby changing the direction of the external airflow on the connecting surface 101.

[0111] It is understood that the area ratio of the arrow end 2411 and the tail fin end 2412 can be adjusted according to the rotational resistance of the base assembly 210. For example, the area ratio of the two can be 1:2 or 1:3. It is only necessary that the driving force generated by the rotation of the wind vane 241 under the action of external airflow can be greater than the rotational resistance of the base assembly 210. This embodiment will not list and explain each one.

[0112] In some embodiments, considering that the connection of the connector 242 to the rotating seat 211 may restrict the rotation of the baffle assembly 220, the connector 242 can also be a combination of a rotating shaft and a gear. One end of the rotating shaft can still be connected to the wind vane 241, while the other end can be connected to the gear and can be driven by the wind vane 241 to rotate the gear. Simultaneously, the gear can mesh with the circumference of the rotating seat 211, allowing the rotating seat 211 to rotate under the drive of the gear. With this configuration, the rotating shaft does not need to be aligned with the second axis L2, but only needs to be parallel to it, which helps reduce the impact of the wind vane 241 and the connector 242 on the rotation of the baffle assembly 220.

[0113] In the above scheme, by setting the arrow of the wind vane 241 to intersect with the rotation axis of the baffle assembly 220, when the direction of the external airflow changes, the wind vane 241 can rotate with the change of the direction of the external airflow, and drive the base assembly 210 to rotate synchronously through the connector 242, thereby ensuring that the rotation axis of the baffle assembly 220 can remain intersecting with the direction of the external airflow.

[0114] In addition to rotating via wind power, the base assembly 210 can also rotate under electric power. For example... Figure 8As shown, the drive assembly 240 may include a drive member 243, a transmission member 244, and a detection member 245. The detection member 245 is electrically connected to the drive member 243 and is configured to detect the direction of external airflow. The drive member 243 is configured to drive the transmission member 244 based on the detection result of the detection member 245, so that the transmission member 244 drives the base assembly 210 to rotate.

[0115] The driving component 243 can be an electrically driven structure such as a motor, and can be mounted on the housing mechanism 100. The transmission component 244 can be a transmission structure such as a transmission belt or transmission gear, and can connect the output end of the driving component 243 to the rotating seat 211 of the base assembly 210. The detection component 245 is mounted on the housing mechanism 100 and can be electrically connected to the driving component 243. The detection component 245 can include the aforementioned wind vane 241 and an encoder, such as a magnetic encoder or optical encoder, so that the detection component 245 can detect the direction of the external airflow. The driving component 243 can drive the transmission component 244 to move according to the detection result of the detection component 245, so that the base assembly 210 can rotate with the change of the direction of the external airflow through the transmission component 244, thereby ensuring that the first axis L1 can remain intersecting with the direction of the external airflow.

[0116] In the above scheme, by setting the detection element 245 to be electrically connected to the driving element 243 and used to detect the direction of the external airflow, the driving element 243 can drive the transmission element 244 to move according to the detection result of the detection element 245, so that the base assembly 210 can be rotated according to the change of the direction of the external airflow through the transmission element 244, thereby ensuring that the rotation axis of the baffle assembly 220 can be intersected with the direction of the external airflow.

[0117] Please see Figures 9 to 11 , Figure 9 This is a simplified structural diagram of the pressure relief mechanism disclosed in the embodiments of this application. Figure 10 yes Figure 9 A schematic diagram of the cross-sectional structure of the flexible snap-fit ​​connector. Figure 11 This is another simplified structural diagram of the pressure relief mechanism disclosed in the embodiments of this application.

[0118] To ensure that the guide surface 201 intersects with the connecting surface 101, the baffle assembly 220 can also remain in a predetermined position. For example... Figures 9 to 11 As shown, in order to achieve the retention of the baffle assembly 220 in a predetermined position, the pressure relief mechanism 200 may further include a limiting component 260. The limiting component 260 connects the base assembly 210 and the baffle assembly 220, and when the baffle assembly 220 rotates to the predetermined position, the limiting component 260 engages with the baffle assembly 220, thereby keeping the baffle assembly 220 in the predetermined position.

[0119] The limiting component 260 can move in tandem with the rotation of the baffle assembly 220. When the baffle assembly 220 rotates to a predetermined position, the limiting component 260 can move to a corresponding engaging position and engage with the baffle assembly 220 to restrict the rotation of the baffle assembly 220 in the direction approaching or away from the connecting surface 101, thereby allowing the baffle assembly 220 to remain in the predetermined position. In this embodiment, the limiting component 260 can specifically be connected to the rotating seat 211 and the heat-resistant plate 221, enabling the heat-resistant plate 221 to remain in the predetermined position.

[0120] In the above scheme, the base assembly 210 and the baffle assembly 220 are connected by a limiting component 260. When the baffle assembly 220 is rotated to a predetermined position, the baffle assembly 220 is engaged with the limiting component 260 and can remain in the predetermined position. This allows the guide surface 201 to remain intersecting with the connecting surface 101 after the pressure relief port 102 is opened, so as to change the direction of the external airflow.

[0121] like Figures 9 to 10 As shown, to limit the rotation of the baffle assembly 220, the limiting component 260 may include a connecting frame 261 and an elastic snap-fit ​​member 262. The connecting frame 261 is disposed on the base assembly 210 and has a sliding groove 2611 facing the baffle assembly 220, with a slot 2612 formed on the bottom wall of the sliding groove 2611. The elastic snap-fit ​​member 262 is connected to the baffle assembly 220, and a portion of the elastic snap-fit ​​member 262 is located within the sliding groove 2611 and abuts against the bottom wall of the sliding groove 2611. Simultaneously, the elastic snap-fit ​​member 262 can slide within the sliding groove 2611 as the baffle assembly 220 rotates, and when the baffle assembly 220 rotates to a predetermined position, the elastic snap-fit ​​member 262 can engage with the connecting frame 261 to limit the rotation of the baffle assembly 220.

[0122] The connecting frame 261 can be disposed on the second surface 2102 of the rotating base 211 and can be arranged around the baffle assembly 220, that is, around the heat-resistant plate 221. Meanwhile, the connecting frame 261 is located on the first axis L1, and grooves 2611 can be formed on opposite sides facing the heat-resistant plate 221, and the extending direction of the grooves 2611 can be consistent with the rotation direction of the heat-resistant plate 221. Furthermore, a retaining groove 2612 can be formed on the bottom wall of the groove 2611, and the retaining groove 2612 can be located at the end of the groove 2611.

[0123] The elastic snap-fit ​​member 262 is connected to the heat-resistant plate 221, and a portion of the elastic snap-fit ​​member 262 protrudes from the heat-resistant plate 221 along the first axis L1, and can protrude into the slide groove 2611 to abut against the bottom wall of the slide groove 2611. When the heat-resistant plate 221 rotates, the elastic snap-fit ​​member 262 can slide within the slide groove 2611 as the heat-resistant plate 221 rotates. When the heat-resistant plate 221 rotates to a predetermined position, the elastic snap-fit ​​member 262 can engage with the connecting frame 261 under its own elastic force to restrict the rotation of the heat-resistant plate 221, thereby achieving the stationary position of the heat-resistant plate 221 at the predetermined position. In this embodiment, the number of elastic snap-fit ​​members 262 can also be two, and the two elastic snap-fit ​​members 262 can respectively cooperate with the aforementioned two slide grooves 2611.

[0124] The elastic snap-fit ​​member 262 may include a guide portion 2621, an elastic portion 2622, and an abutment portion 2623. The guide portion 2621 is connected to the heat-resistant plate 221 and has a guide groove 26211 that accommodates the elastic portion 2622 and the abutment portion 2623. The elastic portion 2622 is located between the abutment portion 2623 and the bottom wall of the guide groove 26211. One end of the abutment portion 2623 abuts against the elastic portion 2622, while the other end may protrude from the guide groove 26211 and protrude into the aforementioned sliding groove 2611, so that it abuts against the bottom wall of the sliding groove 2611 under the action of the elastic portion 2622. When the heat-resistant plate 221 is rotated to the predetermined position, the abutting part 2623 can slide along the bottom wall of the slide groove 2611 to the slot 2612, and can be inserted into the slot 2612 under the elastic force of the elastic part 2622, so as to realize the snap-fit ​​of the elastic snap-fit ​​part 262 and the connecting frame 261.

[0125] In some embodiments, the number of the slide groove 2611 and the elastic snap-fit ​​member 262 may be only one. In addition, the structure of the elastic snap-fit ​​member 262 may not be limited to the scheme shown in the above embodiments. It is only necessary that the elastic snap-fit ​​member 262 can slide in the slide groove 2611 and snap into the snap-fit ​​slot 2612. This embodiment will not list them all here.

[0126] In the above solution, by providing a connecting frame 261 on the base assembly 210, and the connecting frame 261 having a sliding groove 2611 facing the baffle assembly 220, and a slot 2612 formed on the bottom wall of the sliding groove 2611, and the elastic snap-fit ​​member 262 on the baffle assembly 220 can slide in the sliding groove 2611 as the baffle assembly 220 rotates, and can be snapped into the slot 2612 when the baffle assembly 220 rotates to a predetermined position, so that the elastic snap-fit ​​member 262 and the connecting frame 261 can be snapped together to restrict the rotation of the baffle assembly 220, so as to realize the baffle assembly 220 staying in the predetermined position.

[0127] In some embodiments, when the baffle assembly 220 is in the initial position, the limiting component 260 can also limit the baffle assembly 220 to remain in the initial position. For example, the first end of the slide groove 2611 can be formed with a slot 2612 corresponding to the initial position, and the last end can be formed with another slot 2612 corresponding to a predetermined position. The elastic snap-fit ​​member 262 can cooperate with the two slots 2612 respectively to realize the baffle assembly 220 in the initial position and the predetermined position.

[0128] In addition to the solutions shown in the above embodiments, the limiting component 260 can also limit the baffle component 220 in other ways to achieve the baffle component 220 staying at a predetermined position. For example... Figure 11 As shown, the limiting component 260 may include a first connecting rod 263, a second connecting rod 264, and an elastic locking member 262. The first connecting rod 263 is rotatably connected to the rotating seat 211 and slidably connected to the second connecting rod 264, and the second connecting rod 264 is rotatably connected to the heat-resistant plate 221. Furthermore, one of the first connecting rod 263 and the second connecting rod 264 may be provided with the elastic locking member 262, while the other may have a corresponding hole for the elastic locking member 262.

[0129] When the heat-resistant plate 221 rotates relative to the rotating seat 211, the first connecting rod 263 can rotate relative to the rotating seat 211, and the second connecting rod 264 can rotate relative to the heat-resistant plate 221 and slide relative to the first connecting rod 263. When the heat-resistant plate 221 rotates to a predetermined position, the elastic locking member 262 can be engaged in the aforementioned hole to restrict the relative sliding of the first connecting rod 263 and the second connecting rod 264. This allows the first connecting rod 263 and the second connecting rod 264 to not only be supported between the rotating seat 211 and the heat-resistant plate 221, but also to pull the heat-resistant plate 221 in a direction away from the rotating seat 211, thereby restricting the rotation of the heat-resistant plate 221 near or away from the connecting surface 101.

[0130] Similarly, there can be two holes that cooperate with the elastic snap-fit ​​member 262, one hole can correspond to the initial position of the heat-resistant plate 221, and the other hole can correspond to the predetermined position of the heat-resistant plate 221, so as to realize the residence of the heat-resistant plate 221 in the initial position and the predetermined position.

[0131] In some embodiments, in addition to the two schemes shown in the above embodiments, the limiting component 260 may also include: a connecting frame 261, an elastic snap-fit ​​member 262, and a first connecting rod 263. The connecting frame 261 may still have the aforementioned sliding groove 2611 and snap-fit ​​groove 2612. The difference from the previous embodiments is that the sliding groove 2611 in this embodiment can extend along a straight line perpendicular to the first axis L1 and can remain parallel to the connecting surface 101. One end of the first connecting rod 263 is connected to the heat-resistant plate 221, while the other opposite end may be provided with the elastic snap-fit ​​member 262. The elastic snap-fit ​​member 262 can still be disposed within the sliding groove 2611 and abut against the bottom wall of the sliding groove 2611.

[0132] When the heat-resistant plate 221 rotates relative to the rotating seat 211, the first connecting rod 263 can rotate relative to the rotating seat 211 and the heat-resistant plate 221, and can drive the elastic locking member 262 to slide in the slide groove 2611. When the heat-resistant plate 221 rotates to a predetermined position, the elastic locking member 262 can be locked into the aforementioned locking groove 2612 to restrict the relative movement of the first connecting rod 263, so that the first connecting rod 263 can not only be supported between the rotating seat 211 and the heat-resistant plate 221, but also pull the heat-resistant plate 221 in the direction away from the rotating seat 211, so as to restrict the rotation of the heat-resistant plate 221 near or away from the connecting surface 101.

[0133] It is understood that, in addition to being configured as described in the above embodiment, the limiting component 260 can be configured in various other ways, as long as the limiting component 260 can enable the baffle component 220 to stay at the predetermined position. These embodiments will not be listed in detail here.

[0134] Please refer to it again. Figures 4 to 6 Since the baffle assembly 220 can be positioned at a predetermined location, the side of the baffle assembly 220 located in its own rotation direction and close to or away from the pressure relief port 102 can be the aforementioned guide surface 201.

[0135] When the heat-resistant plate 221 is in its initial position, the side of the heat-resistant plate 221 located in its own rotation direction, and near or away from the pressure relief port 102, can serve as a flow-guiding surface 201. Specifically, when the side of the heat-resistant plate 221 near the pressure relief port 102 is the flow-guiding surface 201, the heat-resistant plate 221 can guide the external airflow after it has guided the high-temperature flue gas and flame, thereby changing the direction of the external airflow. When the side of the heat-resistant plate 221 away from the pressure relief port 102 is the flow-guiding surface 201, the heat-resistant plate 221 can guide the external airflow before it has guided the high-temperature flue gas and flame, thereby changing the direction of the external airflow.

[0136] In the above scheme, by setting the side of the baffle assembly 220 located in its own rotation direction and close to or away from the pressure relief port 102 as the flow guide surface 201, both the inner and outer sides of the baffle assembly 220 facing or away from the pressure relief port 102 can be used as flow guide surfaces 201 to meet the usage requirements in different environments.

[0137] In some embodiments, when the pressure relief mechanism 200 can only rotate about the first axis L1, the pressure relief mechanism 200 includes a baffle assembly 220 and a limiting assembly 260. The baffle assembly 220 can close the pressure relief port and can rotate to open the pressure relief port 102. Simultaneously, the rotation axis of the baffle assembly 220 is parallel to the connecting surface 101, and the guide surface 201 is the side of the baffle assembly 220 located in its own rotation direction. Furthermore, the limiting assembly 260 connects the housing mechanism 100 and the baffle assembly 220, and when the baffle assembly 220 rotates to a predetermined position, the limiting assembly 260 engages with the baffle assembly 220 to keep the baffle assembly 220 stationary in the predetermined position.

[0138] The difference between this embodiment and the one where the pressure relief mechanism 200 can rotate about the first axis L1 and the second axis L2 is that the baffle assembly 220 in this embodiment can be directly rotatably connected to the housing mechanism 100, and the limiting assembly 260 can be directly connected to the housing mechanism 100 and the baffle assembly 220. For example, the heat-resistant plate 221 can be rotatably connected to the housing mechanism 100 through the hinge 222, and the connecting frame 261 can be disposed on the housing mechanism 100.

[0139] In the above scheme, by setting a limiting component 260 to connect the housing mechanism 100 and the baffle assembly 220, and when the baffle assembly 220 rotates to a predetermined position, the baffle assembly 220 engages with the limiting component 260 and can remain in the predetermined position, so that the guide surface 201 can maintain an intersecting state with the connecting surface 101 after the pressure relief port 102 is opened, so as to change the direction of the external airflow.

[0140] Please refer to it again. Figure 1 To realize the energy storage function of the energy storage device 10, the energy storage device 10 further includes a battery module 300 disposed within the housing mechanism 100. The battery module 300 can be disposed within the housing mechanism 100 as an energy storage element. The battery module 300 can include at least one battery cell, and the battery cell can be used to store or release electrical energy to realize the energy storage function of the energy storage device 10.

[0141] For example, a battery cell can be a rechargeable battery, which refers to a battery cell that can be recharged after discharge to reactivate its active materials and continue to be used. Furthermore, battery cells can include, but are not limited to, lithium-ion batteries, sodium-ion batteries, sodium-lithium-ion batteries, lithium metal batteries, sodium metal batteries, lithium-sulfur batteries, magnesium-ion batteries, nickel-metal hydride batteries, nickel-cadmium batteries, and lead-acid batteries.

[0142] This application also discloses an energy storage system, which includes a plurality of the aforementioned energy storage devices 10. The plurality of energy storage devices 10 can be arranged in a predetermined manner. Since the high-temperature flue gas and flames released by the energy storage devices 10 are less likely to be disturbed by external airflow, the plurality of energy storage devices 10 can be arranged relatively densely in the same area, allowing for the placement of more energy storage devices 10 within the same area, thereby increasing the energy storage capacity of the energy storage system.

[0143] Finally, in some specific application scenarios, to address the problem that the high-temperature flue gas and flames released by existing energy storage devices can easily affect adjacent energy storage devices, the energy storage device 10 disclosed in this application embodiment may include: a housing mechanism 100 and a pressure relief mechanism 200. The housing mechanism 100 has a connecting surface 101 and a pressure relief port 102 formed on the connecting surface 101. The pressure relief mechanism 200 is located on the connecting surface 101, closing the pressure relief port 102, and is rotatable to open the pressure relief port 102. The pressure relief mechanism 200 has a guide surface 201 located in its own rotation direction. Simultaneously, the rotation axis of the pressure relief mechanism 200 is parallel to the connecting surface 101 and intersects with the flow direction of the external airflow. When the pressure relief mechanism 200 rotates to a predetermined position to open the pressure relief port 102, the guide surface 201 intersects with the connecting surface 101 and is located on the flow path of the external airflow.

[0144] The pressure relief mechanism 200 includes a base assembly 210 and a baffle assembly 220. For example... Figures 4 to 6 As shown, the base assembly 210 is rotatably connected to the housing mechanism 100, and the rotation axis of the base assembly 210 is perpendicular to the connecting surface 101. The baffle assembly 220 closes the pressure relief port 102 and is rotatably connected to the base assembly 210, and the baffle assembly 220 can rotate to open the pressure relief port 102. Simultaneously, the rotation axis of the baffle assembly 220 is parallel to the connecting surface 101, and the guide surface 201 is the side of the baffle assembly 220 located in its own rotation direction. Furthermore, the base assembly 210 can rotate according to the change in the direction of the external airflow, so that the rotation axis of the baffle assembly 220 intersects with the direction of the external airflow.

[0145] The pressure relief mechanism 200 includes a drive assembly 240 connected to the base assembly 210, and the drive assembly 240 is capable of driving the base assembly 210 to rotate according to the direction of the external airflow, so that the rotation axis of the baffle assembly 220 intersects with the direction of the external airflow. The pressure relief mechanism 200 may further include a limiting assembly 260. The limiting assembly 260 connects the base assembly 210 and the baffle assembly 220, and when the baffle assembly 220 rotates to a predetermined position, the limiting assembly 260 engages with the baffle assembly 220, so that the baffle assembly 220 remains in the predetermined position.

[0146] The energy storage device 10 disclosed in this application embodiment can rotate to open the pressure relief port 102 by providing a pressure relief mechanism 200 that closes the pressure relief port 102. The rotation axis of the pressure relief mechanism 200 is parallel to the connecting surface 101 where the pressure relief port 102 is formed and intersects with the flow direction of the external airflow. This allows the guide surface 201 located in the rotation direction of the pressure relief mechanism 200 to not only intersect with the connecting surface 101 but also to be located on the flow path of the external airflow. Thus, when the pressure relief mechanism 200 opens the pressure relief port 102 to release high-temperature smoke and flame, the guide surface 201 can change the flow direction of the external airflow on the connecting surface 101, thereby blocking the path of the high-temperature smoke and flame released from the pressure relief port 102 and improving the fireproof isolation effect between adjacent energy storage devices 10.

[0147] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. An energy storage device, characterized by, The energy storage device includes: a housing structure and a pressure relief mechanism; The housing mechanism has a connecting surface and a pressure relief port formed on the connecting surface; the pressure relief mechanism is located on the connecting surface to close the pressure relief port, and is rotatable to open the pressure relief port, and the pressure relief mechanism has a guide surface located in its own rotation direction; wherein, The rotation axis of the pressure relief mechanism is parallel to the connecting surface and intersects with the flow direction of the external airflow. When the pressure relief mechanism rotates to a predetermined position to open the pressure relief port, the guide surface intersects with the connecting surface and is located on the flow path of the external airflow.

2. The energy storage device of claim 1, wherein, The pressure relief mechanism includes: a base assembly and a baffle assembly; The base assembly is rotatably connected to the housing mechanism, and the rotation axis of the base assembly is perpendicular to the connecting surface; the baffle assembly closes the pressure relief port and is rotatably connected to the base assembly, and the baffle assembly can rotate to open the pressure relief port; The rotation axis of the baffle assembly is parallel to the connecting surface, and the guide surface is the side of the baffle assembly located in its own rotation direction; the base assembly is configured to rotate with the change of the flow direction of the external airflow, so that the rotation axis of the baffle assembly is in an intersecting state with the flow direction of the external airflow.

3. The energy storage device of claim 2, wherein, The pressure relief mechanism includes a drive component connected to the base assembly, and the drive component is configured to drive the base assembly to rotate as the direction of the external airflow changes.

4. The energy storage device according to claim 3, characterized in that, The drive component includes: a wind vane and a connector; The arrow of the wind vane points to intersect the rotation axis of the baffle assembly, and the connectors connect the base assembly and the wind vane respectively; When external airflow passes over the weather vane, the weather vane rotates under the influence of the external airflow, and drives the base assembly to rotate through the connector.

5. The energy storage device according to claim 3, characterized in that, The drive assembly includes: a drive component, a transmission component, and a detection component; The detection element is electrically connected to the drive element and is configured to detect the direction of external airflow; the drive element is configured to drive the transmission element according to the detection result, so that the transmission element drives the base assembly to rotate.

6. The energy storage device according to claim 2, characterized in that, The pressure relief mechanism includes: a limiting component; The limiting component connects the base component and the baffle component, and when the baffle component rotates to the predetermined position, the limiting component engages with the baffle component to keep the baffle component stationary at the predetermined position.

7. The energy storage device according to claim 6, characterized in that, The limiting component includes: a connecting frame and an elastic snap-fit ​​component; The connecting frame is disposed on the base assembly and has a sliding groove facing the baffle assembly, and a slot is formed on the bottom wall of the sliding groove; the elastic snap-fit ​​member is connected to the baffle assembly, and a portion of the elastic snap-fit ​​member is located in the sliding groove and abuts against the bottom wall of the sliding groove; The elastic snap-fit ​​element is configured to slide within the groove as the baffle assembly rotates, and when the baffle assembly rotates to the predetermined position, the elastic snap-fit ​​element snaps into the groove to engage with the connecting frame and restrict the rotation of the baffle assembly.

8. The energy storage device according to claim 2, characterized in that, The baffle assembly is located in its own rotation direction, and the side that is close to or far from the pressure relief port is the flow guide surface.

9. The energy storage device according to claim 1, characterized in that, The pressure relief mechanism includes: a baffle assembly and a limiting assembly; The baffle assembly closes the pressure relief port and can rotate to open the pressure relief port; the rotation axis of the baffle assembly is parallel to the connecting surface, and the guide surface is the side of the baffle assembly located in its own rotation direction; The limiting component connects the housing mechanism and the baffle assembly, and when the baffle assembly rotates to the predetermined position, the limiting component engages with the baffle assembly so that the baffle assembly remains in the predetermined position.

10. The energy storage device according to claim 2, characterized in that, The base assembly includes: a rotating base; The housing mechanism has a frustum opposite to the baffle assembly, and the side of the frustum facing the baffle assembly is the connecting surface; the rotating seat is disposed on the frustum and can rotate along the circumference of the frustum, and the rotation axis of the rotating seat is perpendicular to the connecting surface.

11. The energy storage device according to claim 10, characterized in that, The base assembly further includes: a rolling element; The rolling element is located between the circumference of the rotating seat and the frustum, and rolls between the rotating seat and the frustum when the rotating seat rotates.

12. The energy storage device according to claim 10, characterized in that, The baffle assembly includes: a heat-resistant plate and a hinge; The hinge connects the heat-resistant plate and the rotating seat, and the heat-resistant plate closes the pressure relief port and can rotate to open the pressure relief port; the rotation axis of the heat-resistant plate is parallel to the connecting surface, and the guide surface is the side of the heat-resistant plate located in its own rotation direction.

13. The energy storage device according to claim 2, characterized in that, The gap between the base assembly and the housing mechanism, and the gap between the baffle assembly and the base assembly, are further provided with a fire-resistant sealing layer.

14. The energy storage device according to claim 1, characterized in that, The energy storage device further includes a battery module disposed within the housing structure.

15. An energy storage system, characterized in that, The energy storage system includes: a plurality of energy storage devices as described in any one of claims 1-14.

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