Energy storage box

Abstract

The utility model provides an energy storage box, which comprises a box body, an explosion venting port, an energy storage box body and an energy storage box body, and is characterized in that the side part of the box body is provided with the explosion venting port; the explosion venting structure comprises a telescopic part and an explosion venting plate body which are arranged on the side portions of the box body respectively, the two ends of the telescopic part are connected with the side wall of the box body and the explosion venting plate body respectively, the telescopic part has a contraction state and an extension state which are oppositely arranged, when the telescopic part is in the contraction state, the explosion venting plate body blocks the explosion venting opening, and when the telescopic part is in the extension state, the explosion venting plate body blocks the explosion venting opening. And the explosion venting plate main body opens the explosion venting opening and is connected with the box body through the telescopic part. By means of the scheme, the problem that in the prior art, an explosion venting plate body is arranged to be a disposable device, and the autonomy is poor can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage boxes, and in particular to an energy storage box. Background Art

[0002] At present, energy storage boxes may experience thermal runaway during charging and use. Once thermal runaway occurs, physical or chemical explosions are likely to occur. If the powerful shock wave generated by the explosion cannot be effectively released, it will have a great impact and damage to surrounding buildings and on-site personnel. Usually, an explosion vent is set on the energy storage box, and an explosion vent plate body is installed at the explosion vent. When thermal runaway occurs in the energy storage box, the explosion vent plate body opens the explosion vent, and the gas generated by the thermal runaway diffuses through the explosion vent plate body.

[0003] In the prior art, the explosion venting plate body is usually a disposable device. Specifically, the connection position between the explosion venting plate body and the energy storage box includes a weak connection section. When the thermal runaway gas pressure exceeds the structural strength of the weak connection section, the airflow in the energy storage box breaks through the weak connection section and releases pressure at the location of the weak connection section. However, setting the explosion venting plate body as a disposable device has poor autonomy. Utility Model Content

[0004] The utility model provides an energy storage box to solve the problem in the prior art that the explosion relief plate body is set as a disposable device and has poor autonomy.

[0005] The utility model provides an energy storage box, which comprises: a box body, a side of the box body is provided with an explosion-relief opening; an explosion-relief structure, comprising a telescopic part and an explosion-relief plate main body, which are respectively arranged on the side of the box body, two ends of the telescopic part are respectively connected to the side wall of the box body and the explosion-relief plate main body, the telescopic part has a relatively arranged contraction state and an extension state, when the telescopic part is in the contraction state, the explosion-relief plate main body blocks the explosion-relief opening, when the telescopic part is in the extension state, the explosion-relief plate main body opens the explosion-relief opening, and the explosion-relief plate main body is connected to the box body through the telescopic part.

[0006] Furthermore, the telescopic part includes a first hinged rod, a second hinged rod and a third hinged rod, the bottom end of the first hinged rod is hinged to the side wall of the box, the top end of the second hinged rod is connected to the top end of the first hinged rod, the bottom end of the second hinged rod is hinged to the explosion-proof plate body, the top end of the third hinged rod is located above the top end of the first hinged rod and is hinged to the side wall of the box, and the bottom end of the third hinged rod is located below the bottom end of the second hinged rod and is hinged to the explosion-proof plate body.

[0007] Furthermore, the energy storage box also includes: a first connecting rod, which is vertically arranged on the side wall of the box body and located outside the explosion-proof port; a second connecting rod, which is arranged on the explosion-proof plate body; wherein the bottom end of the first hinged rod and the top end of the third hinged rod are respectively hinged to the first connecting rod, and the bottom end of the second hinged rod and the bottom end of the third hinged rod are respectively hinged to the second connecting rod.

[0008] Further, the length of the second hinged rod is smaller than the length of the first hinged rod, and the sum of the lengths of the first hinged rod and the second hinged rod is larger than the length of the third hinged rod.

[0009] Furthermore, the explosion vent is arranged on the side wall of the box body, and the explosion venting plate body has a top end and a bottom end arranged relatively to each other in the height direction. When the telescopic part is in an extended state, the top end of the explosion venting plate body is inclined in a direction away from the box body, and the inclination angle of the explosion venting plate body is less than 90°.

[0010] Furthermore, the energy storage box also includes: a driving component, which is arranged on the box body, and the driving component is connected to the explosion-proof plate body and / or the telescopic part to switch the telescopic part between a contracted state and an extended state.

[0011] Furthermore, the energy storage box also includes: a sensor part, which is arranged in the box body, and the sensor part is used to detect environmental parameters in the box body. The sensor part is electrically connected to the driving component so that the driving component drives the explosion-proof plate body to open or block the explosion-proof port.

[0012] Furthermore, the driving assembly includes: a driving cylinder, including a seat body and a telescopic rod that are relatively slidably matched, the seat body is arranged on the box body, and one end of the telescopic rod is located outside the seat body and is drivingly connected to the explosion venting plate body.

[0013] Furthermore, when the telescopic rod is in an extended state, the telescopic rod drives the explosion venting plate body to switch from a blocked state to an open state; when the telescopic rod is in a contracted state, the telescopic rod drives the explosion venting plate body to switch from an open state to a blocked state; the driving assembly also includes: a locking structure, which is arranged between the seat body and the telescopic rod; when the explosion venting plate body is in a blocked state, the seat body and the telescopic rod are locked by the locking structure; when the explosion venting plate body is in an open state, the locking structure releases the lock on the seat body and the telescopic rod.

[0014] Furthermore, the locking structure includes: a first magnetic attraction portion, which is arranged on the seat body; a second magnetic attraction portion, which is arranged on the telescopic rod, and the first magnetic attraction portion and the second magnetic attraction portion are magnetically matched.

[0015] Furthermore, the telescopic rod is movably inserted into the first end of the seat body; the first magnetic attraction portion includes a first mounting seat and a first magnetic attraction component, the first mounting seat is arranged on the end face of the first end of the seat body, and the first magnetic attraction component is arranged on the end face of the first mounting seat away from the seat body; the second magnetic attraction portion includes a second mounting seat and a second magnetic attraction component, the second mounting seat is arranged at the end of the telescopic rod located outside the seat body, the second magnetic attraction component is arranged on a side of the second mounting seat close to the seat body, and the second magnetic attraction component is magnetically matched with the first magnetic attraction component.

[0016] Furthermore, when the explosion-venting plate body opens the explosion-venting port, an explosion-venting channel is formed between the explosion-venting plate body and the box body, and the energy storage box also includes: a protective part, which is arranged on at least one of the box body and the explosion-venting plate body, and the protective part is located at the periphery of the explosion-venting port, and when the explosion-venting plate body opens the explosion-venting port, the protective part is located between the explosion-venting plate body and the box body, and the protective part is used to protect part of the explosion-venting channel.

[0017] Furthermore, the explosion relief port is arranged on the side wall of the box body, and two protective parts are arranged respectively corresponding to the two side walls of the explosion relief plate body, so that the opening of the explosion relief channel is arranged upward.

[0018] Furthermore, the energy storage box also includes: an explosion-venting fan, which is arranged in the box body and is used for blowing air toward the explosion-venting port.

[0019] By applying the technical solution of the utility model, the explosion venting plate body is connected to the box body through the telescopic part, and the telescopic part can switch between a contracted state and an extended state. When the telescopic part is in the contracted state, the explosion venting plate body blocks the explosion venting port, and when the telescopic part is in the extended state, the explosion venting plate body opens the explosion venting port. In specific use, when the energy storage device in the box body operates normally, the telescopic part is in the contracted state, and the explosion venting plate body blocks the explosion venting port, so that the explosion venting plate body seals the box body; when the energy storage device in the box body has thermal runaway, the telescopic part switches from the contracted state to the extended state, and the explosion venting plate body opens the explosion venting port, so that the space inside the box body is connected with the external environment, and the gas generated by the thermal runaway diffuses through the explosion venting port; when the thermal runaway ends, the telescopic part switches from the extended state to the contracted state, so that the explosion venting plate body re-blocks the explosion venting port, and the energy storage box is in a sealed state again. In the traditional technical solution, the explosion venting plate body is a disposable device. After thermal runaway occurs, the explosion venting plate body is damaged and completely separated from the box body. A new explosion venting plate body needs to be reinstalled at the explosion venting port, and its autonomy is poor. Compared with the traditional technical solution, the setting of this solution is that the explosion venting plate body is connected to the box body through the telescopic part, and the explosion venting plate body can be switched between the blocked state and the open state, and the autonomy is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0021] Figure 1 A schematic diagram showing the structure of the explosion venting plate main body of the energy storage box provided by the embodiment of the utility model blocking the explosion venting port;

[0022] Figure 2 A partial structural cross-sectional view of the explosion venting plate body of the energy storage box provided by the embodiment of the utility model with the explosion venting opening opened is shown;

[0023] Figure 3 A schematic diagram of the structure of the telescopic part provided by an embodiment of the utility model is shown;

[0024] Figure 4 A schematic diagram of the structure of the first magnetic attraction portion provided in an embodiment of the utility model is shown;

[0025] Figure 5 A schematic structural diagram of the second magnetic attraction portion provided in an embodiment of the utility model is shown.

[0026] The above drawings include the following reference numerals:

[0027] 10. Box body; 101. Explosion vent; 11. First connecting rod;

[0028] 20. Telescopic part;

[0029] 21. First hinged rod; 22. Second hinged rod; 23. Third hinged rod;

[0030] 30. explosion relief plate body; 31. second connecting rod;

[0031] 40. Sensing unit;

[0032] 50. driving cylinder; 51. seat body; 52. telescopic rod; 501. fireproof chain;

[0033] 61. First magnetic attraction portion; 611. First mounting seat; 612. First magnetic attraction member;

[0034] 62. Second magnetic attraction portion; 621. Second mounting seat; 622. Second magnetic attraction member;

[0035] 70. Protection Department;

[0036] 80. Explosion vent fan. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] like Figures 1 to 3 As shown, an embodiment of the utility model provides an energy storage box, which includes a box body 10 and an explosion relief structure. An explosion relief port 101 is provided on the side of the box body 10; the explosion relief structure includes a telescopic portion 20 and an explosion relief plate body 30, the telescopic portion 20 and the explosion relief plate body 30 are respectively provided on the side of the box body 10, and the two ends of the telescopic portion 20 are respectively connected to the side wall of the box body 10 and the explosion relief plate body 30, and the telescopic portion 20 has a relatively arranged contraction state and an extension state. When the telescopic portion 20 is in the contraction state, the explosion relief plate body 30 blocks the explosion relief port 101, and when the telescopic portion 20 is in the extension state, the explosion relief plate body 30 opens the explosion relief port 101, and the explosion relief plate body 30 is connected to the box body 10 through the telescopic portion 20.

[0039] By applying the technical solution of the utility model, the explosion venting plate body 30 is connected to the box body 10 through the telescopic part 20, and the telescopic part 20 can switch between the contracted state and the extended state. When the telescopic part 20 is in the contracted state, the explosion venting plate body 30 blocks the explosion venting port 101, and when the telescopic part 20 is in the extended state, the explosion venting plate body 30 opens the explosion venting port 101. In specific use, when the energy storage device in the box body 10 is operating normally, the telescopic part 20 is in the contracted state, and the explosion venting plate body 30 blocks the explosion venting port 101, so that the explosion venting plate body 30 seals the box body 10; when the energy storage device in the box body 10 has thermal runaway, the telescopic part 20 switches from the contracted state to the extended state, and the explosion venting plate body 30 opens the explosion venting port 101, so that the space inside the box body is connected with the external environment, and the gas generated by the thermal runaway diffuses through the explosion venting port 101; when the thermal runaway ends, the telescopic part 20 switches from the extended state to the contracted state, so that the explosion venting plate body 30 blocks the explosion venting port 101 again. In the traditional technical solution, the explosion venting plate body 30 is a disposable device. After thermal runaway occurs, the explosion venting plate body 30 is damaged and completely separated from the box body 10. A new explosion venting plate body 30 needs to be reinstalled at the explosion venting port, and its autonomy is poor. Compared with the traditional technical solution, the setting of this solution is that the explosion venting plate body 30 is connected to the box body 10 through the telescopic part 20, and the explosion venting plate body 30 can be switched between the blocked state and the open state, and the autonomy is strong.

[0040] Specifically, in this solution, the explosion venting opening 101 is disposed on the side wall of the box body 10. When the explosion venting plate body 30 is switched from the blocking state to the open state, the explosion venting plate body 30 moves toward the outside of the box body 10.

[0041] In some embodiments of the present solution, the energy storage box further includes a hinge structure, which is disposed between the explosion venting plate body 30 and the box body 10 , and the bottom end of the explosion venting plate body 30 is hinged to the box body 10 through the hinge structure.

[0042] This solution does not limit the specific structure of the telescopic part 20.

[0043] In some embodiments of the present scheme, the explosion venting plate main body 30 has a top end and a bottom end relatively arranged in the height direction, and the telescopic part 20 includes a horizontal push hinge. When the telescopic part 20 switches from a contracted state to an extended state, the top end and the bottom end of the explosion venting plate main body 30 move synchronously in a horizontal direction out of the box. Before the explosion venting plate main body 30 opens the explosion venting port 101, the explosion venting plate main body 30 is in a vertical state.

[0044] In the embodiment of the present solution, the explosion venting plate body 30 has a top end and a bottom end that are arranged opposite to each other in the height direction. When the telescopic portion 20 is in the extended state, the top end of the explosion venting plate body 30 is inclined in a direction away from the box body 10, and the inclination angle of the explosion venting plate body 30 is less than 90°. Such an arrangement can further limit the ejection direction of the airflow and debris generated during thermal runaway, and reduce the possibility of the airflow and debris being ejected to the surroundings.

[0045] Specifically, the telescopic part 20 includes a first hinge rod 21, a second hinge rod 22 and a third hinge rod 23, the bottom end of the first hinge rod 21 is hinged to the side wall of the box body 10, the top end of the second hinge rod 22 intersects with the top end of the first hinge rod 21, the bottom end of the second hinge rod 22 is hinged to the explosion venting plate body 30, the top end of the third hinge rod 23 is located above the top end of the first hinge rod 21 and is hinged to the side wall of the box body 10, and the bottom end of the third hinge rod 23 is located below the bottom end of the second hinge rod 22 and is hinged to the explosion venting plate body 30. Such an arrangement can ensure the smoothness of the switching process of the telescopic part 20 between the extended state and the contracted state.

[0046] like Figure 2 and Figure 3As shown, in the embodiment of the present scheme, the energy storage box further includes a first connecting rod 11 and a second connecting rod 31, the first connecting rod 11 is vertically arranged on the side wall of the box body 10 and is located at the periphery of the explosion venting port 101, and the second connecting rod 31 is arranged on the side wall of the explosion venting plate body 30, and is arranged corresponding to the first connecting rod 11. When the explosion venting plate body 30 is in a vertical state, the first connecting rod 11 is roughly parallel to the second connecting rod 31. The two ends of the telescopic part 20 are respectively hinged to the first connecting rod 11 and the second connecting rod 31. In this way, the whole formed by the first connecting rod 11, the telescopic part 20 and the second connecting rod 31 is convenient to be installed between the box body 10 and the explosion venting plate body 30.

[0047] Furthermore, the length of the second hinge rod 22 is less than the length of the first hinge rod 21, and the sum of the lengths of the first hinge rod 21 and the second hinge rod 22 is greater than the length of the third hinge rod 23. In this way, when the telescopic portion 20 is in the extended state, the top end of the explosion venting plate body 30 is inclined in a direction away from the box body 10.

[0048] In the embodiment of the present solution, two telescopic parts 20 are provided, and the two telescopic parts 20 are respectively provided corresponding to the two side edges of the explosion venting plate body 30, and the two telescopic parts 20 are respectively provided corresponding to the periphery of the explosion venting opening 101. Such a configuration makes the explosion venting plate body 30 evenly stressed, which can improve the stability and smoothness of driving the explosion venting plate body 30, and the telescopic parts 20 correspond to the periphery of the explosion venting opening 101, which can reduce the possibility of airflow impacting the telescopic parts 20 during the explosion venting process.

[0049] In an embodiment of the present solution, the energy storage box further includes a driving assembly, which is disposed on the box body 10 and is drivingly connected to the explosion venting plate body 30 and / or the telescopic portion 20 to switch the telescopic portion 20 between a contracted state and an extended state.

[0050] In some embodiments of the present solution, the driving assembly is drivingly connected to the telescopic portion 20 .

[0051] In some embodiments of the present solution, the driving assembly is drivingly connected to the telescopic portion 20 and the explosion venting plate body 30 respectively.

[0052] In the embodiment of this solution, the driving assembly is drivingly connected to the explosion venting plate body 30 , and the telescopic portion 20 drives the explosion venting plate body 30 to block or open the explosion venting opening 101 .

[0053] In the embodiment of the present scheme, the driving assembly includes a driving cylinder 50 and a fire chain 501. The driving cylinder 50 includes a seat body 51 and a telescopic rod 52 that are relatively slidably matched. The seat body 51 is arranged on the box body 10. One end of the telescopic rod 52 located outside the seat body 51 is connected to the explosion venting plate body 30 through the fire chain 501. The setting of the driving cylinder 50 has a fast response speed. One end of the telescopic rod 52 located outside the seat body 51 is connected to the explosion venting plate body 30 through the fire chain 501, so that the top of the explosion venting plate body 30 can make an arc motion that flips outward.

[0054] In the embodiment of the present solution, the explosion vent 101 is arranged at a position near the top of the side wall of the box body 10, and the driving cylinder 50 is arranged at the top of the box body 10. When the telescopic rod 52 is in the extended state, the telescopic rod 52 drives the explosion venting plate body 30 to switch from the blocked state to the open state, and when the telescopic rod 52 is in the retracted state, the telescopic rod 52 drives the explosion venting plate body 30 to switch from the open state to the blocked state.

[0055] like Figure 4 and Figure 5 As shown, in the embodiment of the present solution, the driving assembly further includes a locking structure, which is disposed between the seat body 51 and the telescopic rod 52. When the explosion venting plate body 30 is in a blocked state, the seat body 51 and the telescopic rod 52 are locked by the locking structure, and when the explosion venting plate body 30 is in an open state, the locking structure releases the locking of the seat body 51 and the telescopic rod 52. The provision of the locking structure can ensure the sealing of the energy storage box when the explosion venting plate body 30 is in a blocked state, thereby reducing or avoiding the possibility of the explosion venting plate body 30 being opened by mistake.

[0056] The present solution does not limit the specific form of the locking structure, which may be set in the form of an electronic lock or a snap-fit ​​structure that can be automatically opened and closed under a certain external force.

[0057] like Figure 4 and Figure 5 As shown, in the embodiment of the present scheme, the locking structure includes a first magnetic attraction part 61 and a second magnetic attraction part 62, and the first magnetic attraction part 61 is arranged on the seat body 51. The second magnetic attraction part 62 is arranged on the telescopic rod 52, and the first magnetic attraction part 61 and the second magnetic attraction part 62 cooperate with each other by magnetic attraction. The setting of the first magnetic attraction part 61 and the second magnetic attraction part 62 can realize an automatic adsorption or disconnection connection mode. When the telescopic rod 52 contracts, the first magnetic attraction part 61 and the second magnetic attraction part 62 can be automatically adsorbed. When the telescopic rod 52 is extended, the first magnetic attraction part 61 and the second magnetic attraction part 62 are automatically and quickly separated, which greatly simplifies the operation process and improves the user experience. In addition, the first magnetic attraction part 61 and the second magnetic attraction part 62 have a long service life.

[0058] Specifically, the telescopic rod 52 is movably disposed on the first end of the seat body 51. The first magnetic attraction portion 61 includes a first mounting seat 611 and a first magnetic attraction member 612. The first mounting seat 611 is disposed on the end surface of the first end of the seat body 51, and the first magnetic attraction member 612 is disposed on the end surface of the first mounting seat 611 away from the seat body 51 through a first fastener. Such a configuration has a simple structure and facilitates the assembly of the first magnetic attraction portion 61.

[0059] The second magnetic part 62 includes a second mounting seat 621 and a second magnetic member 622. The second mounting seat 621 is arranged at one end of the telescopic rod 52 outside the seat body 51. The second magnetic member 622 is arranged on a side of the second mounting seat 621 close to the seat body 51 through a second fastener. The second magnetic member 622 is magnetically matched with the first magnetic member 612. Such an arrangement has a simple structure and is convenient for assembling the second magnetic part 62. In the embodiment of the present scheme, the fire chain 501 is arranged on the end face of the second mounting seat 621 away from the second magnetic member 622.

[0060] Furthermore, the contours of the first magnetic component 612 and the second magnetic component 622 on the sides close to each other are the same. Such a configuration can maximize the contact area between the first magnetic component 612 and the second magnetic component 622 and enhance the magnetic attraction effect of the first magnetic component 612 and the second magnetic component 622.

[0061] In the embodiment of this solution, the first magnetic member 612 and the second magnetic member 622 have the same structure. The first magnetic member 612 and the second magnetic member 622 can be configured as a block structure, a sheet structure or a ring structure.

[0062] like Figure 2 As shown, further, the energy storage box also includes a sensor part 40, which is arranged in the box body 10. The sensor part 40 is used to detect the environmental parameters in the box body 10. The sensor part 40 is electrically connected to the driving component so that the driving component drives the explosion venting plate body 30 to open or block the explosion venting port 101. The setting of the sensor part 40 can sense whether thermal runaway occurs. When thermal runaway occurs, the sensor part 40 transmits the signal to the driving component in time, and the driving component drives the telescopic part 20 to switch from the contracted state to the extended state, thereby improving the response speed, improving the pressure relief speed, and reducing the loss caused by thermal runaway.

[0063] Further, when the explosion venting plate body 30 opens the explosion venting port 101, an explosion venting channel is formed between the explosion venting plate body 30 and the box body 10, and the energy storage box further includes a protective portion 70, which is arranged on at least one of the box body 10 and the explosion venting plate body 30, and the protective portion 70 is located at the periphery of the explosion venting port 101, and when the explosion venting plate body 30 opens the explosion venting port 101, the protective portion 70 is located between the explosion venting plate body 30 and the box body 10, and the protective portion 70 is used to protect part of the explosion venting channel. The setting of the protective portion 70 can protect part of the explosion venting channel, and under the joint action of the protective portion 70 and the explosion venting plate body 30, the shock wave and fragments generated by thermal runaway can be guided, thereby improving the safety of the device.

[0064] Specifically, in the embodiment of the present solution, the explosion vent 101 is a rectangular window, and the explosion vent plate body 30 is a rectangular plate-shaped structure adapted to the shape of the explosion vent 101. Two protective parts 70 are provided, and the two protective parts 70 are respectively provided corresponding to the two side walls of the explosion vent plate body 30, so that the opening of the explosion vent channel is provided upward. Such a setting can further limit the ejection direction of the airflow and debris generated during thermal runaway, and reduce the possibility of the airflow and debris being ejected to the surroundings.

[0065] Furthermore, in the embodiment of the present solution, the protective part 70 is made of a steel mesh, and the width of the top of the protective part 70 is greater than the width of the bottom. When the telescopic part 20 is unfolded, the protective part 70 is unfolded. In this way, the shape of the protective part 70 is reasonably designed and can be adapted to the working process of the telescopic part 20 and the explosion venting plate body 30. The protective part 70 is made of a steel mesh, so that the protective part 70 has a protective effect and a high structural strength, and the steel mesh is highly flexible and can be unfolded and folded as the telescopic part 20 is unfolded and folded, and will not interfere with the unfolding and folding process of the telescopic part 20.

[0066] like Figure 2 As shown, the energy storage box further includes an explosion venting fan 80, which is arranged in the box body 10 and is used to blow air to the explosion venting port 101. When the pressure inside the box body 10 exceeds the safety threshold, the explosion venting fan 80 starts quickly to release the pressure by discharging gas, thereby preventing or avoiding physical damage to the box body 10 due to excessive pressure.

[0067] This solution does not limit the installation position of the explosion venting fan 80.

[0068] In this embodiment, the box body 10 is roughly a cubic structure, and the box body 10 includes a first side wall and a second side wall that are arranged opposite to each other, the explosion vent 101 is arranged near the top of the first side wall, and the explosion vent fan 80 is arranged near the top of the second side wall, and the explosion vent fan 80 is arranged opposite to the explosion vent 101. When the energy storage box has thermal runaway, the above arrangement can make the pressure inside the energy storage box be quickly and directly released through the explosion vent 101, reducing the distance and resistance of the gas flowing in the box body 10, and improving the pressure relief efficiency.

[0069] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0070] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being only exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0071] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each part itself.

[0072] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0073] In addition, it should be noted that the use of terms such as "first" and "second" to limit parts is only to facilitate the distinction between corresponding parts. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present utility model.

[0074] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An energy storage box, characterized in that: The energy storage box comprises: A box body (10), wherein a side portion of the box body (10) is provided with an explosion relief opening (101); The explosion relief structure comprises a telescopic portion (20) and an explosion relief plate body (30), wherein the telescopic portion (20) and the explosion relief plate body (30) are respectively arranged on the side of the box body (10), and the two ends of the telescopic portion (20) are respectively connected to the side wall of the box body (10) and the explosion relief plate body (30), and the telescopic portion (20) has a contracted state and an extended state arranged relatively, and when the telescopic portion (20) is in the contracted state, the explosion relief plate body (30) blocks the explosion relief opening (101), and when the telescopic portion (20) is in the extended state, the explosion relief plate body (30) opens the explosion relief opening (101), and the explosion relief plate body (30) is connected to the box body (10) through the telescopic portion (20).

2. The energy storage box according to claim 1, characterized in that: The telescopic portion (20) comprises a first hinge rod (21), a second hinge rod (22) and a third hinge rod (23); the bottom end of the first hinge rod (21) is hinged to the side wall of the box body (10); the top end of the second hinge rod (22) is connected to the top end of the first hinge rod (21); the bottom end of the second hinge rod (22) is hinged to the explosion venting plate body (30); the top end of the third hinge rod (23) is located above the top end of the first hinge rod (21) and is hinged to the side wall of the box body (10); the bottom end of the third hinge rod (23) is located below the bottom end of the second hinge rod (22) and is hinged to the explosion venting plate body (30).

3. The energy storage box according to claim 2, characterized in that: The energy storage box also includes: A first connecting rod (11) is vertically arranged on the side wall of the box body (10) and is located outside the explosion relief port (101); A second connecting rod (31) is arranged on the explosion relief plate body (30); Wherein, the bottom end of the first hinged rod (21) and the top end of the third hinged rod (23) are respectively hinged to the first connecting rod (11), and the bottom end of the second hinged rod (22) and the bottom end of the third hinged rod (23) are respectively hinged to the second connecting rod (31).

4. The energy storage box according to claim 2, characterized in that: The length of the second hinged rod (22) is smaller than the length of the first hinged rod (21), and the sum of the lengths of the first hinged rod (21) and the second hinged rod (22) is greater than the length of the third hinged rod (23).

5. The energy storage box according to claim 1, characterized in that: The explosion venting plate body (30) has a top end and a bottom end which are arranged opposite to each other in the height direction. When the telescopic portion (20) is in the extended state, the top end of the explosion venting plate body (30) is inclined in a direction away from the box body (10), and the inclination angle of the explosion venting plate body (30) is less than 90°.

6. The energy storage box according to claim 1, characterized in that: The energy storage box also includes: A drive assembly is arranged on the box body (10), and the drive assembly is drivingly connected to the explosion relief plate body (30) and / or the telescopic portion (20) so as to switch the telescopic portion (20) between the contracted state and the extended state.

7. The energy storage box according to claim 6, characterized in that: The energy storage box also includes: A sensor unit (40) is arranged in the box (10), and is used to detect environmental parameters in the box (10). The sensor unit (40) is electrically connected to the drive component so that the drive component drives the explosion relief plate body (30) to open or block the explosion relief opening (101).

8. The energy storage box according to claim 6, characterized in that: The drive assembly comprises: The driving cylinder (50) comprises a seat body (51) and a telescopic rod (52) which are relatively slidably matched, wherein the seat body (51) is arranged on the box body (10), and one end of the telescopic rod (52) located outside the seat body (51) is drivingly connected to the explosion relief plate body (30).

9. The energy storage box according to claim 8, characterized in that: When the telescopic rod (52) is in an extended state, the telescopic rod (52) drives the explosion venting plate body (30) to switch from a blocked state to an open state; when the telescopic rod (52) is in a retracted state, the telescopic rod (52) drives the explosion venting plate body (30) to switch from the open state to the blocked state. The driving component further comprises: A locking structure is arranged between the seat body (51) and the telescopic rod (52); when the explosion venting plate body (30) is in the blocking state, the seat body (51) and the telescopic rod (52) are locked by the locking structure; when the explosion venting plate body (30) is in the opening state, the locking structure releases the locking of the seat body (51) and the telescopic rod (52).

10. The energy storage box according to claim 9, characterized in that: The locking structure comprises: A first magnetic attraction portion (61) is arranged on the base (51); The second magnetic attraction portion (62) is arranged on the telescopic rod (52), and the first magnetic attraction portion (61) and the second magnetic attraction portion (62) are magnetically matched.

11. The energy storage box according to claim 10, characterized in that: The telescopic rod (52) is movably arranged on the first end of the seat body (51); The first magnetic attraction portion (61) comprises a first mounting seat (611) and a first magnetic attraction member (612), wherein the first mounting seat (611) is arranged on an end surface of a first end of the seat body (51), and the first magnetic attraction member (612) is arranged on an end surface of the first mounting seat (611) away from the seat body (51); The second magnetic attraction portion (62) comprises a second mounting seat (621) and a second magnetic attraction member (622); the second mounting seat (621) is arranged at one end of the telescopic rod (52) located outside the seat body (51); the second magnetic attraction member (622) is arranged on a side of the second mounting seat (621) close to the seat body (51); the second magnetic attraction member (622) is magnetically matched with the first magnetic attraction member (612).

12. The energy storage box according to claim 1, characterized in that: When the explosion relief plate body (30) opens the explosion relief opening (101), an explosion relief channel is formed between the explosion relief plate body (30) and the box body (10), and the energy storage box further comprises: A protective portion (70) is arranged on at least one of the box body (10) and the explosion relief plate body (30); the protective portion (70) is located at the periphery of the explosion relief opening (101); and when the explosion relief plate body (30) opens the explosion relief opening (101), the protective portion (70) is located between the explosion relief plate body (30) and the box body (10); the protective portion (70) is used to protect a portion of the explosion relief passage.

13. The energy storage box according to claim 12, characterized in that: The explosion relief opening (101) is arranged on the side wall of the box body (10), and two protective parts (70) are arranged, and the two protective parts (70) are arranged corresponding to the two side walls of the explosion relief plate body (30) respectively, so that the opening of the explosion relief channel is arranged upward.

14. The energy storage box according to claim 1, characterized in that: The energy storage box also includes: An explosion venting fan (80) is disposed in the box body (10), and the explosion venting fan (80) is used to blow air toward the explosion venting port (101).

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