Explosion venting assembly for energy storage cabinet

Abstract

The utility model relates to the technical field of explosion venting, and discloses an explosion venting assembly used for an energy storage cabinet, the explosion venting assembly is assembled on the energy storage cabinet, the explosion venting assembly comprises an explosion venting cover, one side of the explosion venting cover is rotatably connected with the energy storage cabinet, the other side of the explosion venting cover is connected with the energy storage cabinet through an explosion venting trigger piece, and when the pressure of the explosion venting trigger piece reaches a preset value, the explosion venting cover is connected with the energy storage cabinet. One side of the explosion venting cover is separated from the energy storage cabinet and moves towards the direction far away from the energy storage cabinet so as to release the internal pressure of the energy storage cabinet; the limiting piece is detachably arranged between the explosion venting cover and the energy storage cabinet, and when the explosion venting cover moves in the direction away from or close to the energy storage cabinet, the limiting piece stretches or contracts in the moving direction of the explosion venting cover. The explosion venting assembly for the energy storage cabinet is simple in structure, high in safety, stable in performance and long in service life.

Description

Technical Field

[0001] The utility model belongs to the technical field of explosion relief, and in particular relates to an explosion relief component for an energy storage cabinet. Background Art

[0002] As energy storage technology develops rapidly, the requirements for battery safety are becoming increasingly stringent, especially in large-scale energy storage systems, where battery packs are densely arranged and energy density is significantly increased, and the probability of thermal runaway events and their potential hazards increase accordingly. Although traditional energy storage cabinets have been equipped with explosion relief devices to deal with gas accumulation and pressure surges caused by thermal runaway, such as using fixed explosion relief doors or window structures to achieve emergency pressure relief, these devices have exposed several deficiencies in actual applications. In particular, the direct detachment of the explosion relief cover not only fails to effectively control the safety risks during the pressure relief process, but may also pose a serious threat to surrounding facilities and personnel.

[0003] In this regard, the improved existing technology introduced an articulated explosion-proof cover design. Although it partially alleviated the problem of the explosion-proof cover flying away, it still could not completely eliminate the safety hazard due to the insufficient strength of the connection structure and durability limitations. In addition, under frequent use or extreme conditions, the connecting components are easily damaged, affecting the long-term stability and reliability of the entire system. Utility Model Content

[0004] The purpose of the utility model is to provide an explosion relief component for an energy storage cabinet with a simple structure, high safety, stable performance and long service life in view of the above problems in the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions: an explosion relief assembly for an energy storage cabinet, which is assembled on the energy storage cabinet, and the explosion relief assembly includes:

[0006] An explosion venting cover, one side of which is rotatably connected to the energy storage cabinet, and the other side of which is connected to the energy storage cabinet via an explosion venting trigger. When the pressure of the explosion venting trigger reaches a preset value, one side of the explosion venting cover is separated from the energy storage cabinet and moves away from the energy storage cabinet to release the internal pressure of the energy storage cabinet;

[0007] A limiting member is detachably disposed between the explosion-proof cover and the energy storage cabinet, and when the explosion-proof cover moves away from or toward the energy storage cabinet, the limiting member extends or contracts along the moving direction of the explosion-proof cover.

[0008] In the above-mentioned explosion-proof assembly for an energy storage cabinet, the limiting member includes a first connection portion detachably connected to the explosion-proof cover, and a second connection portion detachably connected to the energy storage cabinet, and the first connection portion and the second connection portion are connected via a movable portion, and when the explosion-proof cover moves, the movable portion extends or contracts along the moving direction of the explosion-proof cover.

[0009] In the above-mentioned explosion relief assembly for an energy storage cabinet, the movable portion is a flexible member having an extended state and a contracted state.

[0010] In the above-mentioned explosion-proof assembly for an energy storage cabinet, the explosion-proof triggering member includes an explosion-proof gasket provided on a side of the explosion-proof cover facing away from the energy storage cabinet, and a fastener passing through the explosion-proof gasket and the explosion-proof cover in sequence and connected to the energy storage cabinet, wherein the explosion-proof cover is provided with a through hole for the fastener to pass through, and the diameter of the through hole is larger than the diameter of the fastener and smaller than the diameter of the explosion-proof gasket;

[0011] When the pressure of the explosion-proof gasket reaches a preset value, the explosion-proof gasket ruptures, releasing the fixation of the explosion-proof cover, and the explosion-proof cover moves away from the energy storage cabinet under the action of pressure to release the internal pressure of the energy storage cabinet.

[0012] In the above-mentioned explosion relief assembly for an energy storage cabinet, the explosion relief triggering members are provided in a plurality of groups and are evenly distributed along the length direction of the explosion relief cover.

[0013] In the above-mentioned explosion-proof assembly for an energy storage cabinet, the explosion-proof cover is rotatably connected to the energy storage cabinet through a hinge structure, and the hinge structure includes a fixed seat detachably connected to the explosion-proof cover, and a rotating shaft rotatably provided on the fixed seat and connected to the energy storage cabinet.

[0014] In the above-mentioned explosion relief assembly for an energy storage cabinet, the hinge structure and the explosion relief trigger are arranged opposite to each other, and the hinge structure is provided in a plurality of groups and is evenly distributed along the length direction of the explosion relief cover.

[0015] In the above explosion relief assembly for an energy storage cabinet, the explosion relief cover is provided with a first accommodating groove toward the energy storage cabinet, a plurality of reinforcing ribs are provided in the first accommodating groove, and the limiting member and the fixing seat are respectively detachably connected to the reinforcing ribs.

[0016] In the above-mentioned explosion relief assembly for an energy storage cabinet, four reinforcing ribs are provided, which are arranged end to end and form a second accommodating groove, and a heat preservation structure is provided in the second accommodating groove.

[0017] In the above-mentioned explosion relief assembly for an energy storage cabinet, the thermal insulation structure includes a thermal insulation member arranged in the second receiving groove, and a thermal insulation sealing plate arranged outside the second receiving groove, and the second receiving groove has an inner diameter and an outer diameter;

[0018] The size of the heat-insulating component is adapted to the size of the inner diameter, the size of the heat-insulating sealing plate is adapted to the size of the outer diameter, and the heat-insulating sealing plate is welded or detachably connected to the reinforcing rib.

[0019] Compared with the prior art, the utility model has the following beneficial effects: by making one side of the explosion venting cover rotatably connected to the energy storage cabinet, and setting a limiter between the explosion venting cover and the energy storage cabinet, the limiter is extended and contracted with the rotation of the explosion venting cover, thereby limiting the movement of the explosion venting cover. On the one hand, when the explosion venting cover is venting, the connection strength between the explosion venting cover and the energy storage cabinet is further strengthened, reducing the risk of the explosion venting cover being separated from the energy storage cabinet, thereby improving safety; on the other hand, the pressure on the hinge structure is dispersed, and while the service life of the hinge structure is increased, the reliability of the explosion venting assembly is further guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the explosion relief assembly according to an embodiment of the utility model.

[0021] Figure 2 It is an exploded view of the explosion relief assembly in the embodiment of the utility model.

[0022] Figure 3 It is a schematic structural diagram of the connection between the explosion relief cover and the limiting member in an embodiment of the utility model.

[0023] In all the drawings, the same figure numbers represent the same technical features, specifically: 100, explosion-proof cover; 110, first receiving groove; 120, through hole; 200, explosion-proof trigger; 210, explosion-proof gasket; 220, fastener; 300, limiter; 310, first connecting part; 320, second connecting part; 330, movable part; 400, hinge structure; 410, fixing seat; 420, rotating shaft; 500, reinforcing rib; 510, second receiving groove; 600, thermal insulation structure; 610, thermal insulation part; 620, thermal insulation sealing plate. DETAILED DESCRIPTION

[0024] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0025] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] like Figures 1 to 3As shown, an explosion relief assembly for an energy storage cabinet includes an explosion relief cover 100 , an explosion relief trigger 200 , a limiter 300 , a hinge structure 400 , a reinforcing rib 500 and a thermal insulation structure 600 .

[0027] like Figures 1 to 3 As shown, an explosion relief assembly for an energy storage cabinet is assembled on the energy storage cabinet, and the explosion relief assembly includes:

[0028] An explosion venting cover 100, one side of which is rotatably connected to the energy storage cabinet, and the other side of which is connected to the energy storage cabinet through an explosion venting trigger 200. When the pressure of the explosion venting trigger 200 reaches a preset value, one side of the explosion venting cover 100 is separated from the energy storage cabinet and moves away from the energy storage cabinet to release the internal pressure of the energy storage cabinet;

[0029] The limiter 300 is detachably disposed between the explosion venting cover 100 and the energy storage cabinet. When the explosion venting cover 100 moves away from or close to the energy storage cabinet, the limiter 300 extends or contracts along the moving direction of the explosion venting cover 100. The moving stroke of the explosion venting cover 100 is limited. On the one hand, when the explosion venting cover 100 is venting, the connection strength between the explosion venting cover 100 and the energy storage cabinet is further strengthened, and the risk of the explosion venting cover 100 being separated from the energy storage cabinet is reduced, thereby improving safety; on the other hand, the pressure on the hinge structure 400 is dispersed, and the reliability of the explosion venting assembly is further guaranteed while the service life of the hinge structure 400 is increased.

[0030] like Figures 1 to 3 As shown, in this embodiment, the explosion venting cover 100 is rectangular, and its size is adapted to the installation opening on the energy storage cabinet to form a blockage for the energy storage cabinet, thereby ensuring the sealing of the energy storage cabinet and preventing external impurities from entering the interior of the energy storage cabinet.

[0031] In this embodiment, the explosion venting cover 100 is provided with a first accommodating groove 110 facing the energy storage cabinet. The first accommodating groove 110 is rectangular and has a plurality of reinforcing ribs 500 therein for improving the strength and impact resistance of the explosion venting cover 100, thereby effectively improving the service life and reuse rate of the explosion venting cover 100.

[0032] Preferably, in this embodiment, the reinforcing ribs 500 are provided with four, which are arranged end to end and form a second accommodating groove 510. The second accommodating groove 510 is rectangular, which can improve the uniformity of the force on the explosion-proof cover 100 on the one hand, and can position the thermal insulation structure 600 on the other hand to improve the installation efficiency of the thermal insulation structure 600.

[0033] Preferably, in this embodiment, the reinforcing rib 500 is Z-shaped, including two mutually parallel horizontal planes and one vertical plane, wherein one horizontal plane is detachably connected or welded to the first accommodating groove 110, and the other horizontal plane is detachably connected or welded to the insulation sealing plate 620. When it is a detachable connection, the convenience of replacing the reinforcing rib 500 and the insulation component 610 can be improved.

[0034] To improve the air tightness and reliability of the connection, in this embodiment, the reinforcing rib 500 is welded to the first accommodating groove 110 and the thermal insulation sealing plate 620, which not only ensures the stability of the overall performance of the explosion-proof assembly, but also effectively reduces the production cost of the explosion-proof assembly.

[0035] In order to reduce the impact of external high temperature on the energy storage cabinet, in this embodiment, a thermal insulation structure 600 is provided in the second accommodating groove 510. The thermal insulation structure 600 can effectively prevent the temperature above the explosion venting cover 100 from being transferred to the inside of the energy storage cabinet, thereby effectively ensuring the performance of the energy storage cabinet.

[0036] In this embodiment, the insulation structure 600 includes an insulation component 610 disposed in the second receiving groove 510, and an insulation sealing plate 620 disposed outside the second receiving groove 510, and the second receiving groove 510 has an inner diameter and an outer diameter, wherein the size of the insulation component 610 is adapted to the size of the inner diameter, and the size of the insulation sealing plate 620 is adapted to the size of the outer diameter, so that the insulation sealing plate 620 can stably fix the insulation component 610 in the second receiving groove 510.

[0037] It is worth mentioning that the thermal insulation sealing plate 620 is not only used as a fixing structure of the thermal insulation component 610 , but also used as a heat insulating component, thereby further improving the thermal insulation and heat insulating performance of the thermal insulation structure 600 .

[0038] In order to prevent the explosion venting cover 100 from being separated from the energy storage cabinet during the explosion venting process, which poses a serious threat to surrounding facilities and personnel, in this embodiment, one side of the explosion venting cover 100 is rotatably connected to the energy storage cabinet through a hinge structure 400, and the other side is connected to the energy storage cabinet through an explosion venting trigger 200. When the pressure of the explosion venting trigger 200 reaches a preset value, the explosion venting cover 100 with one side of the explosion venting trigger 200 is separated from the energy storage cabinet, and moves around the hinge structure 400 in a direction away from the energy storage cabinet, so that the inside of the energy storage cabinet is connected to the outside, thereby achieving the purpose of releasing the internal pressure of the energy storage cabinet. Among them, under the action of the hinge structure 400, the explosion venting cover 100 does not directly separate from the energy storage cabinet during the explosion venting, but rotates and opens in a direction away from the energy storage cabinet, thereby avoiding the damage to the surrounding environment caused by the explosion venting cover 100 during the explosion venting, and effectively improving safety.

[0039] In this embodiment, the explosion relief trigger 200 includes an explosion relief gasket 210 disposed on the side of the explosion relief cover 100 away from the energy storage cabinet, and a fastener 220 that passes through the explosion relief gasket 210 and the explosion relief cover 100 in sequence and is connected to the energy storage cabinet, wherein the explosion relief cover 100 is provided with a through hole 120 for the fastener 220 to pass through, and the diameter of the through hole 120 is larger than the diameter of the fastener 220 and smaller than the diameter of the explosion relief gasket 210; when the pressure of the explosion relief gasket 210 reaches a preset value, the explosion relief gasket 210 ruptures, releasing the fixation of the explosion relief cover 100, so that the explosion relief cover 100 moves away from the energy storage cabinet under the action of pressure to release the internal pressure of the energy storage cabinet. Triggering the pressure relief by the rupture of the explosion relief gasket 210 greatly simplifies the structure of the pressure relief component and reduces the production cost; in addition, the replacement of the explosion relief gasket 210 can also be used to improve the reuse rate of the explosion relief component.

[0040] Specifically, since the diameter of the through hole 120 is larger than the diameter of the fastener 220 and smaller than the diameter of the explosion-proof gasket 210, when the explosion-proof gasket 210 ruptures, the explosion-proof gasket 210 contacts the restriction on the fastener 220, so that the fastener 220 can pass through the through hole 120, and then the explosion-proof cover 100 can move away from the energy storage cabinet under the action of pressure.

[0041] Preferably, in this embodiment, the preset value is mainly reflected by the strength of the explosion-proof gasket 210, which can be set according to actual needs.

[0042] Preferably, in this embodiment, the fastener 220 is a screw.

[0043] In this embodiment, the explosion relief triggering members 200 are provided in several groups and are evenly distributed along the length direction of the explosion relief cover 100, so as to ensure that the pressure of each part of the energy storage cabinet is evenly released, avoid local stress concentration, improve the overall pressure relief efficiency and structural balance, and effectively reduce the risk of structural damage caused by local overload.

[0044] Preferably, in this embodiment, the explosion relief triggering components 200 are provided in three groups.

[0045] In this embodiment, the hinge structure 400 includes a fixed seat 410 detachably connected to the explosion-proof cover 100, and a rotating shaft 420 rotatably provided on the fixed seat 410 and connected to the energy storage cabinet, so that the explosion-proof cover 100 can rotate around the rotating shaft 420 during explosion-proofing, wherein the rotating shaft 420 can limit the longitudinal movement of the explosion-proof cover 100, effectively ensuring the reliability of the rotation of the explosion-proof cover 100.

[0046] In this embodiment, the hinge structure 400 and the explosion relief trigger 200 are arranged opposite to each other, and the hinge structure 400 is provided with a plurality of groups and is evenly distributed along the length direction of the explosion relief cover 100. This optimizes the spatial layout of the pressure relief mechanism, makes the explosion relief process more orderly, and improves the stability of the explosion relief cover 100 during rotation.

[0047] Since the strength of the hinge structure 400 is limited, in order to further improve the connection strength between the explosion venting cover 100 and the energy storage cabinet during the explosion venting process, in this embodiment, a limiter 300 is further provided between the explosion venting cover 100 and the energy storage cabinet, one end of the limiter 300 is detachably connected to the explosion venting cover 100, and the other end is detachably connected to the energy storage cabinet. When the explosion venting cover 100 moves away from or close to the energy storage cabinet, the limiter 300 extends or contracts along the moving direction of the explosion venting cover 100. The movement stroke of the explosion venting cover 100 is limited, and the connection strength between the explosion venting cover 100 and the energy storage cabinet is further strengthened. By cooperating with the hinge structure 400, the risk of the explosion venting cover 100 being separated from the energy storage cabinet is effectively avoided.

[0048] In this embodiment, the stopper 300 includes a first connection portion 310 detachably connected to the explosion venting cover 100, and a second connection portion 320 detachably connected to the energy storage cabinet, and the first connection portion 310 and the second connection portion 320 are connected via a movable portion 330, and when the explosion venting cover 100 moves, the movable portion 330 extends or contracts along the moving direction of the explosion venting cover 100. Through the extension or contraction function of the movable portion 330, the rotation amplitude of the explosion venting cover 100 is effectively controlled to avoid structural damage and damage to the surrounding environment caused by excessive opening, thereby enhancing the controllability of the pressure relief process and the stability of the system.

[0049] In this embodiment, the movable portion 330 is a flexible member made of a flexible material having an extended state and a contracted state, so that it can be significantly stretched or compressed under the action of the movement of the explosion venting cover 100 and is not easy to break.

[0050] In this embodiment, the limiting member 300 is a steel pull rope or a V-shaped hinged frame. Preferably, in this embodiment, the limiting member 300 is a steel pull rope.

[0051] In this embodiment, the steel pull rope is bent into a U-shape during assembly so as to be placed in the energy storage cabinet.

[0052] Preferably, in this embodiment, the limit member 300 is provided with two groups, which are symmetrically arranged on both sides of the explosion-proof cover 100, one end of which forms a detachable connection with the vertical surface of the reinforcing rib 500, and the other end forms a detachable connection with the energy storage cabinet, so as to realize convenient installation and maintenance of the limit member 300.

[0053] It should be noted that in the present utility model, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. The terms "connected", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0054] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0055] The specific embodiments described herein are merely examples of the spirit of the present invention. A person skilled in the art of the present invention may make various modifications or additions to the specific embodiments described or replace them in a similar manner, but this will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An explosion relief assembly for an energy storage cabinet, mounted on the energy storage cabinet, characterized in that: The explosion relief assembly comprises: An explosion venting cover, one side of which is rotatably connected to the energy storage cabinet, and the other side of which is connected to the energy storage cabinet via an explosion venting trigger. When the pressure of the explosion venting trigger reaches a preset value, one side of the explosion venting cover is separated from the energy storage cabinet and moves away from the energy storage cabinet to release the internal pressure of the energy storage cabinet; A limiting member is detachably disposed between the explosion-proof cover and the energy storage cabinet, and when the explosion-proof cover moves away from or toward the energy storage cabinet, the limiting member extends or contracts along the moving direction of the explosion-proof cover.

2. An explosion relief assembly for an energy storage cabinet according to claim 1, characterized in that: The limiting member includes a first connecting portion detachably connected to the explosion-proof cover, and a second connecting portion detachably connected to the energy storage cabinet, and the first connecting portion and the second connecting portion are connected via a movable portion, and when the explosion-proof cover moves, the movable portion extends or contracts along the moving direction of the explosion-proof cover.

3. The explosion relief assembly for an energy storage cabinet according to claim 2, characterized in that: The movable part is a flexible member having an extended state and a contracted state.

4. The explosion relief assembly for an energy storage cabinet according to claim 1, characterized in that: The explosion-relief trigger comprises an explosion-relief gasket provided on a side of the explosion-relief cover facing away from the energy storage cabinet, and a fastener passing through the explosion-relief gasket and the explosion-relief cover in sequence and connected to the energy storage cabinet, wherein the explosion-relief cover is provided with a through hole for the fastener to pass through, and the diameter of the through hole is larger than the diameter of the fastener and smaller than the diameter of the explosion-relief gasket; When the pressure of the explosion-proof gasket reaches a preset value, the explosion-proof gasket ruptures, releasing the fixation of the explosion-proof cover, and the explosion-proof cover moves away from the energy storage cabinet under the action of pressure to release the internal pressure of the energy storage cabinet.

5. The explosion relief assembly for an energy storage cabinet according to claim 4, characterized in that: The explosion relief triggering members are provided in a plurality of groups and are evenly distributed along the length direction of the explosion relief cover.

6. The explosion relief assembly for an energy storage cabinet according to claim 1, characterized in that: The explosion relief cover is rotatably connected to the energy storage cabinet via a hinge structure, wherein the hinge structure comprises a fixing seat detachably connected to the explosion relief cover, and a rotating shaft rotatably disposed on the fixing seat and connected to the energy storage cabinet.

7. An explosion relief assembly for an energy storage cabinet according to claim 6, characterized in that: The hinge structure and the explosion relief trigger are arranged opposite to each other, and the hinge structure is provided with a plurality of groups and is evenly distributed along the length direction of the explosion relief cover.

8. The explosion relief assembly for an energy storage cabinet according to claim 6, characterized in that: The explosion relief cover is provided with a first accommodating groove facing the energy storage cabinet, a plurality of reinforcing ribs are provided in the first accommodating groove, and the limiting member and the fixing seat are respectively detachably connected with the reinforcing ribs.

9. An explosion relief assembly for an energy storage cabinet according to claim 8, characterized in that: The reinforcing ribs are provided with four, arranged end to end, and form a second containing groove, and a heat preservation structure is provided in the second containing groove.

10. An explosion relief assembly for an energy storage cabinet according to claim 9, characterized in that: The heat preservation structure includes a heat preservation member arranged in the second containing groove, and a heat preservation sealing plate arranged outside the second containing groove, and the second containing groove has an inner diameter and an outer diameter; The size of the heat-insulating component is adapted to the size of the inner diameter, the size of the heat-insulating sealing plate is adapted to the size of the outer diameter, and the heat-insulating sealing plate is welded or detachably connected to the reinforcing rib.

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