CN220897081U - Energy storage device, energy storage equipment and electric equipment - Google Patents

Abstract

The application discloses an energy storage device, energy storage equipment and electric equipment. The casing has holds the chamber, and the casing includes first lateral wall and second lateral wall, and first lateral wall and second lateral wall arrange along first direction and set up, and first lateral wall includes first through-hole, and the second lateral wall includes the second through-hole, and first through-hole and second through-hole all communicate holds the chamber. The electric module is arranged in the accommodating cavity, and the projection of the electric module, the projection of the first through hole and the projection of the second through hole are overlapped along the first direction. The electrical module includes at least one of a battery assembly, a current transformer assembly, and a circuit board. In the energy storage device, the first through hole and the second through hole are communicated with the containing cavity, heat dissipation airflow penetrating through the energy storage device can be formed, and the heat dissipation airflow can flow through the electrical module, so that heat dissipation of the electrical module is facilitated, and the risk of thermal runaway of the electrical module is reduced.

Description

Energy storage device, energy storage equipment and electric equipment

Technical Field

The application relates to the technical field of energy storage, in particular to an energy storage device, energy storage equipment and electric equipment.

Background

With the growth of outdoor activities and household energy storage demands, the market demand for portable and multifunctional energy storage products is also increasing. In the use process of the energy storage device, a large amount of heat is generated, and if the heat is accumulated excessively, the heat not only affects the performance of the battery and the circuit board, but also can have the risk of thermal runaway.

Disclosure of utility model

In view of the above, it is desirable to provide an energy storage device that can improve the heat dissipation effect and reduce the risk of thermal runaway.

The embodiment of the application provides an energy storage device, which comprises a shell and an electrical module. The casing has holds the chamber, and the casing includes first lateral wall and second lateral wall, and first lateral wall and second lateral wall arrange along first direction and set up, and first lateral wall includes first through-hole, and the second lateral wall includes the second through-hole, and first through-hole and second through-hole all communicate holds the chamber. The electric module is arranged in the accommodating cavity, and the projection of the electric module, the projection of the first through hole and the projection of the second through hole are overlapped along the first direction. The electrical module includes at least one of a battery assembly, a current transformer assembly, and a circuit board.

In the energy storage device, the first through hole and the second through hole are communicated with the containing cavity, heat dissipation airflow penetrating through the energy storage device can be formed, and the projection of the electric module, the projection of the first through hole and the projection of the second through hole are overlapped along the first direction, so that the heat dissipation airflow can flow through the electric module, heat dissipation of the electric module is facilitated, and the risk of thermal runaway of the electric module is reduced.

In one embodiment of the application, the electrical module comprises a battery assembly and a circuit board, the battery assembly and the circuit board are arranged along a second direction, the battery assembly comprises a plurality of batteries, each battery is electrically connected with the circuit board, and the second direction is perpendicular to the first direction. Along the first direction, there is the overlap in the projection of battery pack, the projection of first through-hole and the projection of second through-hole, and there is the overlap in the projection of circuit board, the projection of first through-hole and the projection of second through-hole, is favorable to the heat dissipation air current to flow through the electricity module, improves the heat dissipation of electricity module, reduces the risk of electricity module thermal runaway.

In one embodiment of the application, a first gap is arranged between any two adjacent batteries, and the first gap is communicated with the accommodating cavity; along the first direction, there is the overlap in projection in first clearance, projection in first through-hole and the projection in second through-hole, is favorable to the heat dissipation air current to pass between the adjacent battery, further improves the heat dissipation of electricity module, reduces the risk of electricity module thermal runaway.

In one embodiment of the application, the electrical module further comprises a frame assembly disposed in the cavity and connecting the plurality of cells and the housing, the frame assembly configured to limit movement of the plurality of cells; the frame component comprises a third through hole, the third through hole is communicated with the first gap and the containing cavity, the projection of the third through hole, the projection of the first gap, the projection of the first through hole and the projection of the second through hole are overlapped along the first direction, heat dissipation airflow can pass through adjacent batteries, the influence of the frame component on heat dissipation of the batteries is reduced, and the risk of thermal runaway of the electrical module is reduced.

In one embodiment of the application, a second gap is arranged between the battery component and the circuit board along a second direction, and the second gap is communicated with the accommodating cavity; along the first direction, there is the overlap in the projection in second clearance, the projection in first through-hole and the projection in second through-hole, is favorable to the heat dissipation air current to pass between battery pack and the circuit board, further improves the heat dissipation of electricity module, reduces the risk of electricity module thermal runaway.

In an embodiment of the application, the housing further includes a third sidewall and a fourth sidewall, the third sidewall, the electrical module and the fourth sidewall are arranged along a third direction, the third sidewall and the fourth sidewall are connected to the first sidewall and the second sidewall, and the third direction is perpendicular to the first direction.

In one embodiment of the application, a third gap is arranged between the electrical module and the third side wall along the third direction, and the third gap is communicated with the first through hole and the second through hole, so that the heat dissipation airflow is beneficial to passing through one side of the electrical module, which faces the third side wall, so that at least part of heat of one side of the electrical module, which is close to the third side wall, is taken away, the heat dissipation of the electrical module is improved, and the risk of thermal runaway of the electrical module is reduced.

In one embodiment of the application, a fourth gap is arranged between the electrical module and the fourth side wall along the third direction, and the fourth gap is communicated with the first through hole and the second through hole, so that the heat dissipation airflow is beneficial to passing through one side of the electrical module towards the fourth side wall, and at least part of heat of one side of the electrical module close to the fourth side wall is further taken away, the heat dissipation of the electrical module is improved, and the risk of thermal runaway of the electrical module is reduced.

In one embodiment of the application, the first sidewall includes a first grid and a first handle with a fifth gap therebetween configured for insertion by a human hand to grasp the first handle, and the first through hole is provided in the first grid.

In one embodiment of the present application, the first grid is recessed toward the cavity, which is advantageous for reducing the influence of the first grid or the first handle on the external dimensions of the energy storage device and reducing the volume of the energy storage device.

In one embodiment of the application, the second sidewall includes a second grid and a second handle with a sixth gap therebetween configured for insertion by a human hand to grasp the second handle, and the second through hole is provided in the second grid.

In one embodiment of the application, the second grid is recessed towards the cavity, which is advantageous for reducing the influence of the second grid or the second handle on the external dimensions of the energy storage device and reducing the volume of the energy storage device.

In one embodiment of the application, the energy storage device further comprises a first fan disposed in the cavity and adjacent to the first through hole, the first fan configured to accelerate the airflow velocity between the first through hole and the cavity. Through setting up first fan, be favorable to accelerating the speed that heat dissipation air current passed through energy memory, improve energy memory's radiating efficiency.

In one embodiment of the application, the energy storage device further comprises a second fan disposed in the cavity and adjacent to the second through hole, the second fan configured to accelerate the airflow velocity between the second through hole and the cavity. Through setting up the second fan, be favorable to accelerating the speed that heat dissipation air current passed through energy memory, improve energy memory's radiating efficiency.

The embodiment of the application also provides energy storage equipment, which comprises a base and the energy storage device of any one of the previous embodiments.

The embodiment of the application also provides electric equipment, which comprises the energy storage device or the energy storage equipment according to any of the previous embodiments.

In summary, in the energy storage device of the present application, the first through hole and the second through hole are both connected to the cavity, so that a heat dissipation airflow passing through the energy storage device can be formed, and the projection of the electrical module, the projection of the first through hole and the projection of the second through hole overlap along the first direction, so that the heat dissipation airflow can flow through the electrical module, which is favorable for heat dissipation of the electrical module, and reduces the risk of thermal runaway of the electrical module.

Drawings

Fig. 1 is a schematic diagram of an energy storage device according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of an energy storage device according to an embodiment of the present application.

Fig. 3 is a schematic view of a portion of an energy storage device according to an embodiment of the present application.

Fig. 4 is a cross-sectional view of an energy storage device along a direction perpendicular to a third direction in an embodiment of the present application.

Fig. 5 is a schematic view of a portion of an energy storage device according to an embodiment of the present application.

Fig. 6 is a view of a portion of the structure of the energy storage device in a direction opposite to the second direction in one embodiment of the application.

DESCRIPTION OF SYMBOLS IN THE DRAWINGS

The energy storage device 100, the case 10, the first sidewall 11, the first through hole 111, the first handle 112, the first grid 113, the first body 114, the second sidewall 12, the second through hole 121, the second handle 122, the second grid 123, the second body 124, the third sidewall 13, the fourth sidewall 14, the top wall 15, the bottom wall 16, the cavity 17, the electrical module 20, the battery assembly 21, the battery 211, the circuit board 22, the frame assembly 23, the first frame 231, the second frame 232, the third through hole 233, the first gap 31, the second gap 32, the third gap 33, the fourth gap 34, the fifth gap 35, the sixth gap 36, the first direction X, the second direction Y, and the third direction Z.

Detailed Description

The following description of the technical solutions according to the embodiments of the present application will be given with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

Unless defined otherwise, 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 belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

In the description of embodiments of the present application, the technical terms "first," "second," and the like are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.

In the description of embodiments of the present application, the term "vertical" is used to describe an ideal state between two components. In the actual production or use state, there may be an approximately vertical state between the two components. For example, in conjunction with the numerical description, perpendicular may refer to an angle between two straight lines ranging between 90±10°, perpendicular may refer to a dihedral angle between two planes ranging between 90±10°, and perpendicular may refer to an angle between a straight line and a plane ranging between 90±10°. The two components described as "perpendicular" may be considered "straight" or "planar" as they are considered "straight" or "planar" in that they are not strictly straight or planar, but may be substantially straight or planar in that they extend in a macroscopic manner.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. The various embodiments of the application may be combined with one another without conflict.

It should be noted that, the dimensions of thickness, length, width, etc. of the various components and the dimensions of the overall thickness, length, width, etc. of the integrated device in the embodiments of the present application shown in the drawings are only illustrative, and should not be construed as limiting the present application.

Embodiments of the present application will be further described below with reference to the accompanying drawings.

As shown in fig. 1 to 3, an energy storage device 100 according to an embodiment of the present application includes a housing 10 and an electrical module 20, wherein the housing 10 has a cavity 17, and the electrical module 20 is disposed in the cavity 17. Wherein the electrical module 20 includes at least one of a battery assembly 21, a current transformer assembly, and a circuit board 22.

The housing 10 includes a first side wall 11 and a second side wall 12, the first side wall 11 and the second side wall 12 are arranged along a first direction X, the first side wall 11 includes a first through hole 111, the second side wall 12 includes a second through hole 121, and the first through hole 111 and the second through hole 121 are both communicated with the cavity 17. The external air flow can pass through the first through hole 111, the second through hole 121 and the accommodating cavity 17, so that heat dissipation air flow passing through the energy storage device 100 is formed, at least part of heat on the energy storage device 100 is taken away, heat dissipation of the energy storage device 100 is facilitated, and the risk of thermal runaway of the electrical module 20 is reduced.

In an embodiment, along the first direction X, the projection of the electrical module 20, the projection of the first through hole 111, and the projection of the second through hole 121 overlap, so that the heat dissipation airflow can flow through the electrical module 20 and take away at least part of the heat on the electrical module 20, which is beneficial to heat dissipation of the electrical module 20 and reduces the risk of thermal runaway of the electrical module 20.

In an embodiment, the first sidewall 11 includes a plurality of first through holes 111, and the plurality of first through holes 111 are arranged in a row, so that the size of each first through hole 111 is reduced without affecting the airflow flux, the risk that foreign objects enter the housing 10 through the first through holes 111 is reduced, and the safety performance of the energy storage device 100 is improved.

In an embodiment, the second side wall 12 includes a plurality of second through holes 121, and the plurality of second through holes 121 are arranged in a row, so that the size of each second through hole 121 is reduced without affecting the airflow flux, the risk that external impurities enter the housing 10 through the second through holes 121 is reduced, and the safety performance of the energy storage device 100 is improved.

As shown in fig. 3 and 4, in an embodiment, the electrical module 20 includes a battery assembly 21 and a circuit board 22, where the battery assembly 21 and the circuit board 22 are arranged along a second direction Y, and the battery assembly 21 includes a plurality of batteries 211, and each battery 211 is electrically connected to the circuit board 22, and the second direction Y is perpendicular to the first direction X. In one embodiment, the second direction Y is a vertically upward direction, and the battery assembly 21 is disposed below the circuit board 22.

In an embodiment, along the first direction X, the projection of the battery assembly 21, the projection of the first through hole 111 and the projection of the second through hole 121 overlap, which is favorable for the heat dissipation airflow to flow through the battery assembly 21, and at least part of heat on the battery assembly 21 is taken away, so as to improve heat dissipation of the battery assembly 21 and reduce the risk of thermal runaway of the battery assembly 21.

In an embodiment, along the first direction X, the projection of the circuit board 22, the projection of the first through hole 111 and the projection of the second through hole 121 overlap, which is favorable for the heat dissipation airflow to flow through the circuit board 22, and at least part of heat on the circuit board 22 is taken away, so that the heat dissipation of the circuit board 22 is improved, and the risk that the performance or damage of the circuit board 22 is affected due to the over-high temperature is reduced.

In one embodiment, the second gap 32 is provided between the battery assembly 21 and the circuit board 22 along the second direction Y, which is advantageous in reducing the mutual thermal influence between the battery assembly 21 and the circuit board 22.

In an embodiment, the second gap 32 is communicated with the cavity 17, and there is overlap between the projection of the second gap 32, the projection of the first through hole 111 and the projection of the second through hole 121 along the first direction X, which is favorable for the heat dissipation airflow to pass through between the battery assembly 21 and the circuit board 22, and at least part of the heat on the battery assembly 21 and at least part of the heat on the circuit board 22 are taken away, so that the heat dissipation of the electrical module 20 is further improved, the risk of thermal runaway of the battery assembly 21 is reduced, and the risk of performance or damage of the circuit board 22 due to over-high temperature is reduced.

In an embodiment, the second gap 32 extends along the first direction X, so that the heat dissipation airflow can pass through the first through hole 111, the second gap 32 and the second through hole 121, the resistance of the heat dissipation airflow passing through the energy storage device 100 is reduced, the speed of the heat dissipation airflow passing through the energy storage device 100 is increased, and the heat dissipation effect of the energy storage device 100 is further improved.

As shown in fig. 4 and fig. 5, in an embodiment, a first gap 31 is formed between any two adjacent batteries 211, the first gap 31 is communicated with the cavity 17, and part of heat generated by the batteries 211 can be transferred to the cavity 17 through the first gap 31, so as to achieve the heat dissipation effect, thereby being beneficial to reducing the mutual heat influence between the adjacent batteries 211 and improving the heat dissipation effect.

In an embodiment, the different first gaps 31 between the different batteries 211 are communicated with each other, so that the heat dissipation air flow can pass between the different batteries 211, and the heat dissipation effect can be improved.

In an embodiment, along the first direction X, the projection of the first gap 31, the projection of the first through hole 111, and the projection of the second through hole 121 overlap, which is favorable for the heat dissipation air flow to pass between the adjacent cells 211, further improving the heat dissipation of the electrical module 20 and reducing the risk of thermal runaway of the electrical module 20.

In one embodiment, the battery 211 is a cylindrical structure.

In one embodiment, the electrical module 20 further includes a frame assembly 23, where the frame assembly 23 is disposed in the cavity 17 and connects the plurality of batteries 211 and the housing 10, and the frame assembly 23 is configured to limit movement of the plurality of batteries 211, so as to facilitate improving the anti-seismic performance and anti-drop performance of the energy storage device 100.

In one embodiment, the frame assembly 23 includes a third through hole 233, the third through hole 233 communicating the first gap 31 and the cavity 17. By providing the third through hole 233, heat exchange between the first gap 31 and the cavity 17 is facilitated, and the heat dissipation effect of the plurality of batteries 211 is improved.

In an embodiment, along the first direction X, the projection of the third through hole 233, the projection of the first gap 31, the projection of the first through hole 111, and the projection of the second through hole 121 overlap, which is beneficial for the heat dissipation air flow to pass between the adjacent cells 211, reduces the resistance of the frame assembly 23 to the heat dissipation air flow, reduces the influence of the frame assembly 23 on the heat dissipation of the cells 211, and reduces the risk of thermal runaway of the electrical module 20.

In an embodiment, the frame assembly 23 includes a first frame 231 and a second frame 232, the first frame 231 and the second frame 232 are arranged along the second direction Y, the first frame 231 and the second frame 232 are connected to each other, and a portion of the first frame 231 is connected to an end portion of the battery assembly 21 in a direction opposite to the second direction Y, the second frame 232 is connected to an end portion of the battery assembly 21 in the second direction Y, and the first frame 231 and the second frame 232 form a clamping limit for the battery assembly 21, so that stability of each battery 211 is improved, risk of shaking of the battery 211 is reduced, and anti-seismic performance and anti-falling performance of the energy storage device 100 are improved.

In an embodiment, the housing 10 further includes a top wall 15 and a bottom wall 16, the bottom wall 16 and the top wall 15 are arranged in the second direction Y, and the bottom wall 16 and the top wall 15 are connected to the first side wall 11 and the second side wall 12.

In an embodiment, along the second direction Y, a portion of the first frame 231 is located between the bottom wall 16 and the battery assembly 21, and connects the bottom wall 16 and the battery assembly 21, which is beneficial to improving connection stability between the battery assembly 21 and the housing 10, reducing risk of relative shaking of the battery assembly 21 and the housing 10, and improving anti-seismic performance and anti-drop performance of the energy storage device 100.

In an embodiment, along the second direction Y, a portion of the second frame 232 is located between the top wall 15 and the battery assembly 21, and connects the top wall 15 and the battery assembly 21, which is beneficial to improving the connection stability between the battery assembly 21 and the housing 10, reducing the risk of relative shaking between the battery assembly 21 and the housing 10, and improving the anti-seismic performance and anti-drop performance of the energy storage device 100.

In one embodiment, the first frame 231 and the second frame 232 are detachably connected by bolts, facilitating disassembly and maintenance, and improving the overall stability of the frame assembly 23, and improving the anti-shock and anti-drop performance of the energy storage device 100.

In one embodiment, the second frame 232 is provided with a third through hole 233.

In one embodiment, the first frame 231 is provided with a third through hole 233 (not shown).

In one embodiment, the first frame 231 and the second frame 232 form a third through hole 233 (not shown).

In an embodiment, the first frame 231 is made of plastic, which is not only beneficial to reducing its dead weight and reducing the influence of its weight on the energy storage device 100, but also beneficial to reducing the risk of short circuit of the battery assembly 21.

In an embodiment, the second frame 232 is made of plastic, which is not only beneficial to reducing its dead weight and reducing the influence of its weight on the energy storage device 100, but also beneficial to reducing the risk of short circuit of the battery assembly 21.

As shown in fig. 3, 5 and 6, in an embodiment, the housing 10 further includes a third side wall 13 and a fourth side wall 14, the third side wall 13, the electrical module 20 and the fourth side wall 14 are arranged along the third direction Z, the third side wall 13 connects the first side wall 11, the second side wall 12, the top wall 15 and the bottom wall 16, the fourth side wall 14 connects the first side wall 11, the second side wall 11, the top wall 15 and the bottom wall 16, and the first side wall 11, the second side wall 12, the third side wall 13, the fourth side wall 14, the bottom wall 16 and the top wall 15 form the protective housing 10 of the energy storage device 100. Wherein the third direction Z is perpendicular to both the first direction X and the second direction Y.

In an embodiment, along the third direction Z, a third gap 33 is formed between the electrical module 20 and the third sidewall 13, and the third gap 33 communicates with the cavity 17, the first through hole 111 and the second through hole 121, so that the heat dissipation airflow is beneficial to passing through the gap (i.e., the third gap 33) between the electrical module 20 and the third sidewall 13, and at least part of the heat on one side of the electrical module 20, which is close to the third sidewall 13, is further taken away, so that the heat dissipation of the electrical module 20 is improved, and the risk of thermal runaway of the electrical module 20 is reduced.

In an embodiment, the third gap 33 extends along the first direction X, which is favorable for the heat dissipation airflow to pass through the third gap 33, reduces the resistance of the heat dissipation airflow passing through the third gap 33, increases the speed of the heat dissipation airflow passing through the third gap 33, and improves the heat dissipation effect of the electrical module 20.

In an embodiment, along the third direction Z, a fourth gap 34 is formed between the electrical module 20 and the fourth sidewall 14, and the fourth gap 34 is communicated with the cavity 17, the first through hole 111 and the second through hole 121, so that the heat dissipation airflow is beneficial to passing through the gap (i.e. the fourth gap 34) between the electrical module 20 and the fourth sidewall 14, and at least part of the heat on one side of the electrical module 20, which is close to the fourth sidewall 14, is further taken away, so that the heat dissipation of the electrical module 20 is improved, and the risk of thermal runaway of the electrical module 20 is reduced.

In an embodiment, the fourth gap 34 extends along the first direction X, which is favorable for the heat dissipation airflow to pass through the fourth gap 34, reduces the resistance of the heat dissipation airflow passing through the fourth gap 34, increases the speed of the heat dissipation airflow passing through the fourth gap 34, and improves the heat dissipation effect of the electrical module 20.

In an embodiment, the first side wall 11 includes a first handle 112, and by providing the first handle 112, a person can conveniently hold the first handle 112 to carry the energy storage device 100, so as to improve portability of the energy storage device 100.

In one embodiment, the second side wall 12 includes a second handle 122, and the portability of the energy storage device 100 is improved by providing the first handle 112 and the second handle 122 simultaneously, facilitating both hands of one person to carry the energy storage device 100, or both persons to cooperatively carry the energy storage device 100.

In an embodiment, the first sidewall 11 further includes a first grid 113, and the first through hole 111 is disposed on the first grid 113. The first handle 112 and the first grid 113 are arranged in a first direction X with a fifth gap 35 between the first handle 112 and the first grid 113, the fifth gap 35 being configured for insertion of a human hand to grip the first handle 112.

In an embodiment, the first grid 113 is recessed toward the cavity 17, which is beneficial to reduce the influence of the first grid 113 or the first handle 112 on the external dimension of the energy storage device 100 and reduce the volume of the energy storage device 100.

In an embodiment, the second sidewall 12 further includes a second grid 123, and the second through holes 121 are disposed on the second grid 123. The second grid 123 and the second handle 122 are arranged in the first direction X with a sixth gap 36 therebetween, the sixth gap 36 being configured for insertion of a human hand to hold the second handle 122.

In one embodiment, second grid 123 is recessed toward cavity 17, which is advantageous for reducing the impact of second grid 123 or second handle 122 on the overall dimensions of energy storage device 100, and for reducing the volume of energy storage device 100.

In an embodiment, the first sidewall 11 further includes a first body 114, the first body 114 is detachably connected to the first grid 113, and the first handle 112 is provided on the first body 114. By providing the first side wall 11 as a split structure, the first grid 113 is easily processed, the processing process of the first side wall 11 is simplified, and the processing and manufacturing costs of the first side wall 11 are reduced.

In one embodiment, the second sidewall 12 further includes a second body 124, the second body 124 and the second grid 123 are detachably connected, and the second handle 122 is disposed on the second body 124. By arranging the second side wall 12 in a split structure, the second grid 123 can be conveniently processed, the processing technology of the second side wall 12 is simplified, and the processing and manufacturing cost of the second side wall 12 is reduced.

In an embodiment, at least one of the first side wall 11, the second side wall 12, the third side wall 13, the fourth side wall 14, the top wall 15 and the bottom wall 16 is made of plastic, which is beneficial to reducing the dead weight of the housing 10, reducing the influence of the weight of the housing 10 on the energy storage device 100, and reducing the risk of short-circuiting the energy storage device 100.

In one embodiment, the energy storage device 100 further includes a first fan (not shown) disposed in the cavity 17 and adjacent to the first through hole 111, and configured to accelerate the airflow speed between the first through hole 111 and the cavity 17. By arranging the first fan, the speed of the heat dissipation airflow passing through the energy storage device 100 is increased, and the heat dissipation efficiency of the energy storage device 100 is improved.

In one embodiment, along the first direction X, the first fan is disposed between the first grid 113 and the electrical module 20.

In one embodiment, the energy storage device 100 further includes a second fan (not shown) disposed in the cavity 17 and adjacent to the second through hole 121, and configured to accelerate the airflow speed between the second through hole 121 and the cavity 17. By arranging the second fan, the speed of the heat dissipation airflow passing through the energy storage device 100 is increased, and the heat dissipation efficiency of the energy storage device 100 is improved.

In one embodiment, the first fan is disposed between the second grid 123 and the electrical module 20 along the first direction X.

In summary, in the energy storage device 100 of the present application, the first through hole 111 and the second through hole 121 are both connected to the cavity 17, so that a heat dissipation airflow passing through the energy storage device 100 can be formed, and the projection of the electrical module 20, the projection of the first through hole 111 and the projection of the second through hole 121 overlap along the first direction X, so that the heat dissipation airflow can flow through the electrical module 20, which is beneficial to heat dissipation of the electrical module 20, and reduces the risk of thermal runaway of the electrical module 20.

Embodiments of the present application also provide an energy storage device (not shown) comprising a base and an energy storage apparatus 100 according to any of the previous embodiments.

In the energy storage equipment provided by the application, the first through hole 111 and the second through hole 121 of the energy storage device 100 are both communicated with the cavity 17, so that heat dissipation airflow passing through the energy storage device 100 can be formed, and the projection of the electrical module 20, the projection of the first through hole 111 and the projection of the second through hole 121 are overlapped along the first direction X, so that the heat dissipation airflow can flow through the electrical module 20, the heat dissipation of the electrical module 20 is facilitated, the risk of thermal runaway of the electrical module 20 is reduced, and the safety performance of the energy storage equipment is improved.

In an embodiment, the base is provided with travelling wheels, and the base can be used for carrying the energy storage device 100 for movement, so that the compatibility of the energy storage device for different application scenarios is improved.

In an embodiment, the energy storage device further comprises a current transformer module, and the current transformer module is electrically connected with the energy storage device.

In an embodiment, the converter module, the energy storage device and the base are detachably stacked. In one embodiment, the current transformer module is disposed within the housing 10 of the energy storage device.

In an embodiment, the converter module includes any one of a rectifier, an inverter, an ac converter, and a dc converter.

Embodiments of the present application also provide a powered device (not shown) including the energy storage apparatus 100 or the energy storage device according to any of the foregoing embodiments.

In the electric equipment provided by the application, the first through hole 111 and the second through hole 121 of the energy storage device 100 are both communicated with the cavity 17, so that heat dissipation airflow passing through the energy storage device 100 can be formed, and the projection of the electric module 20, the projection of the first through hole 111 and the projection of the second through hole 121 are overlapped along the first direction X, so that the heat dissipation airflow can flow through the electric module 20, thereby being beneficial to heat dissipation of the electric module 20, reducing the risk of thermal runaway of the electric module 20, improving the safety performance of the energy storage device 100, and reducing the influence of the safety performance of the energy storage device 100 on the electric equipment.

In one embodiment, the powered device includes, but is not limited to, an electric automobile, an unmanned aerial vehicle, an electric two-wheeled vehicle, a household appliance, and an electric tool.

Further, other variations within the spirit of the present application will occur to those skilled in the art, and it is intended, of course, that such variations be included within the scope of the present application as disclosed herein.

Claims (10)

1. An energy storage device (100), comprising:

A housing (10) having a cavity (17), the housing (10) including a first side wall (11) and a second side wall (12), the first side wall (11) and the second side wall (12) being arranged along a first direction (X), the first side wall (11) including a first through hole (111), the second side wall (12) including a second through hole (121), the first through hole (111) and the second through hole (121) both communicating with the cavity (17);

The electric module (20) is arranged in the accommodating cavity (17), and the projection of the electric module (20), the projection of the first through hole (111) and the projection of the second through hole (121) are overlapped along the first direction (X);

The electrical module (20) comprises at least one of a battery assembly (21), a current transformer assembly and a circuit board (22).

2. The energy storage device (100) of claim 1, wherein the energy storage device comprises a housing,

The electrical module (20) comprises a battery assembly (21) and a circuit board (22), wherein the battery assembly (21) and the circuit board (22) are arranged along a second direction (Y), the battery assembly (21) comprises a plurality of batteries (211), each battery (211) is electrically connected with the circuit board (22), and the second direction (Y) is perpendicular to the first direction (X);

Along the first direction (X), there is an overlap of the projection of the battery assembly (21), the projection of the first through hole (111) and the projection of the second through hole (121), and there is an overlap of the projection of the circuit board (22), the projection of the first through hole (111) and the projection of the second through hole (121).

3. The energy storage device (100) of claim 2, wherein the energy storage device comprises a housing,

A first gap (31) is arranged between any two adjacent batteries (211), and the first gap (31) is communicated with the accommodating cavity (17);

Along the first direction (X), there is an overlap of the projection of the first gap (31), the projection of the first through hole (111) and the projection of the second through hole (121).

4. The energy storage device (100) of claim 3, wherein the energy storage device comprises a housing,

The electrical module (20) further comprises a frame assembly (23), the frame assembly (23) being provided in the cavity (17) and connecting the plurality of batteries (211) and the housing (10), the frame assembly (23) being configured to limit movement of the plurality of batteries (211);

The frame assembly (23) comprises a third through hole (233), the third through hole (233) is communicated with the first gap (31) and the containing cavity (17), and along the first direction (X), the projection of the third through hole (233), the projection of the first gap (31), the projection of the first through hole (111) and the projection of the second through hole (121) overlap.

5. The energy storage device (100) of claim 2, wherein the energy storage device comprises a housing,

A second gap (32) is arranged between the battery assembly (21) and the circuit board (22) along the second direction (Y), and the second gap (32) is communicated with the accommodating cavity (17);

Along the first direction (X), there is an overlap of the projection of the second gap (32), the projection of the first through hole (111) and the projection of the second through hole (121).

6. The energy storage device (100) of claim 1, wherein the energy storage device comprises a housing,

The shell (10) further comprises a third side wall (13) and a fourth side wall (14), the third side wall (13), the electrical module (20) and the fourth side wall (14) are arranged along a third direction (Z), the third side wall (13) and the fourth side wall (14) are connected with the first side wall (11) and the second side wall (12), and the third direction (Z) is perpendicular to the first direction (X);

The energy storage device (100) further satisfies at least one of conditions a and b:

a. A third gap (33) is arranged between the electrical module (20) and the third side wall (13) along the third direction (Z), and the third gap (33) is communicated with the first through hole (111) and the second through hole (121);

b. Along the third direction (Z), a fourth gap (34) is arranged between the electrical module (20) and the fourth side wall (14), and the fourth gap (34) is communicated with the first through hole (111) and the second through hole (121).

7. The energy storage device (100) of claim 1, wherein the energy storage device (100) further satisfies at least one of the conditions c and d:

c. The first side wall (11) comprises a first grid (113) and a first handle (112), a fifth gap (35) is arranged between the first grid (113) and the first handle (112), the fifth gap (35) is configured for being inserted by a human hand to hold the first handle (112), the first through hole (111) is formed in the first grid (113), and the first grid (113) is recessed towards the accommodating cavity (17);

d. The second side wall (12) comprises a second grid (123) and a second handle (122), a sixth gap (36) is arranged between the second grid (123) and the second handle (122), the sixth gap (36) is configured for being inserted by a human hand to hold the second handle (122), the second through hole (121) is formed in the second grid (123), and the second grid (123) is recessed towards the accommodating cavity (17).

8. The energy storage device (100) according to any one of claims 1 to 7, wherein the energy storage device (100) further comprises:

A first fan provided in the cavity (17), the first fan being adjacent to the first through hole (111), the first fan being configured to accelerate an air flow velocity between the first through hole (111) and the cavity (17); and/or the number of the groups of groups,

And the second fan is arranged in the containing cavity (17), is adjacent to the second through hole (121) and is configured to accelerate the air flow speed between the second through hole (121) and the containing cavity (17).

9. Energy storage device, characterized in that it comprises a base and an energy storage means (100) according to any one of claims 1 to 8.

10. A powered device comprising an energy storage apparatus (100) according to any of claims 1 to 8 or an energy storage device according to claim 9.