Cabinet body, energy storage device and electric equipment

Abstract

The utility model relates to the technical field of energy storage, and discloses a cabinet body, an energy storage device and electric equipment, the cabinet body comprises a base, a first limiting piece and a second limiting piece, the base is provided with an accommodating groove extending along a first direction, the accommodating groove is provided with a first end and a second end opposite to the first direction, the first limiting piece is arranged on the base and located at the second end, and the second limiting piece is arranged on the base. The first limiting piece abuts against the end, facing the same direction as the second end, of the heat dissipation module, the limiting part of the second limiting piece is connected to the first limiting piece, one side of the limiting part abuts against the side, in the second direction, of the heat dissipation module, and the guiding part inclines from the limiting part to the first direction and extends towards the first end. The guide part is gradually far away from the side, abutting against the heat dissipation module, of the limiting part, and is used for providing installation guidance for the heat dissipation module to move into the containing groove from the first end to the second end and abut against one side of the limiting part. By adopting the cabinet body, the energy storage device and the electric equipment provided by the utility model, the heat dissipation module can be accurately installed on the cabinet body, and the installation precision of the heat dissipation module is relatively high.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, in particular to a cabinet, an energy storage device and electrical equipment. Background Art

[0002] In related technologies, in order to prevent the energy storage device from overheating during operation, which may cause the energy storage device to malfunction or even explode, a heat dissipation module is usually installed in the cabinet of the energy storage device to dissipate heat for the battery module. The heat dissipation module usually adopts a liquid cooling unit or an air cooling unit.

[0003] However, in existing energy storage devices, it is difficult to ensure that the heat dissipation module is installed in the correct position when the heat dissipation module is installed in the cabinet, resulting in low installation accuracy of the heat dissipation module. Utility Model Content

[0004] The embodiment of the utility model discloses a cabinet, an energy storage device and an electrical device. The heat dissipation module can be accurately installed on the cabinet, and the installation accuracy of the heat dissipation module is high.

[0005] In a first aspect, an embodiment of the present invention discloses a cabinet, which is applied to an energy storage device, wherein the energy storage device includes a heat dissipation module, and the cabinet includes a base, a first limiting member, and a second limiting member. The base has a receiving groove, and the receiving groove is extended along a first direction. The receiving groove has a first end and a second end opposite to the first direction. The receiving groove is used to accommodate the heat dissipation module that moves from the first end to the second end and enters the receiving groove. The first limiting member is provided on the base, and the first limiting member is located at the second end. The first limiting member is used to abut against an end of the heat dissipation module that faces the same direction as the second end. The second limiting member includes A limiting portion and a guiding portion, wherein the limiting portion is connected to the first limiting member, and the limiting portion extends from the first limiting member along the first direction to the first end, and one side of the limiting portion is used to abut against one side of the heat dissipation module along the second direction, and the guiding portion is connected to an end of the limiting portion away from the first limiting member, and the guiding portion extends from the limiting portion obliquely in the first direction to the first end, and gradually away from the side of the limiting portion used to abut against the heat dissipation module, and the guiding portion is used to provide an installation guide for the heat dissipation module to move from the first end to the second end into the accommodating groove and abut against one side of the limiting portion.

[0006] As an optional embodiment, in an embodiment of the present utility model, the second limiting member also includes a mounting portion, which is connected to the first limiting member and extends along the second direction. The end of the limiting member away from the guide portion is connected to the mounting portion, and the projection of the mounting portion on the first limiting member at least partially overlaps with the projection of the guide portion on the first limiting member.

[0007] As an optional implementation, in an embodiment of the present utility model, the cabinet includes at least two second position-limiting members, and the at least two second position-limiting members are arranged at intervals along the second direction.

[0008] As an optional implementation, in an embodiment of the present utility model, the first limiting member is provided with a heat dissipation window, and the heat dissipation window is located in the interval between at least two of the second limiting members.

[0009] As an optional embodiment, in an embodiment of the present utility model, the base includes a bottom plate, a first side plate and a second side plate, the first side plate and the second side plate are arranged on the bottom plate at intervals along the second direction, and are enclosed with the bottom plate to form the receiving groove, and the bottom plate is used to support the heat dissipation module located in the receiving groove.

[0010] As an optional embodiment, in an embodiment of the present utility model, the cabinet also includes a first connecting member, which is arranged on the base, the first connecting member is located at the first end, and the first connecting member is used to be detachably connected to the end of the heat dissipation module facing the same direction as the first end.

[0011] As an optional embodiment, in an embodiment of the present utility model, the first connecting member includes a first connecting portion and a second connecting portion, the first connecting portion is arranged on the inner side wall of the accommodating groove along the second direction, and the first connecting portion is extended along the first direction, the second connecting portion is connected to the first connecting portion, and the second connecting portion extends from the first connecting portion along the second direction away from the inner side wall of the accommodating groove, and the second connecting portion is used to be detachably connected to the end of the heat dissipation module facing the same direction as the first end.

[0012] As an optional implementation, in an embodiment of the present utility model, the first connecting member is detachably provided on the base.

[0013] As an optional embodiment, in an embodiment of the present utility model, the cabinet body also includes a fixing member, which is arranged on the base, the fixing member is located at the first end, and the first connecting member is arranged on the side of the fixing member away from the inner wall of the accommodating groove along the second direction.

[0014] As an optional implementation, in an embodiment of the present utility model, the cabinet includes at least two first connecting members, and the at least two first connecting members are arranged at intervals along the second direction.

[0015] In the second aspect, an embodiment of the utility model discloses an energy storage device, comprising a heat dissipation module and a cabinet of the first aspect, wherein the heat dissipation module is accommodated in the accommodating groove, the first limiting member abuts against an end of the heat dissipation module facing the same direction as the second end, and one side of the limiting portion abuts against one side of the heat dissipation module along the second direction.

[0016] In a third aspect, an embodiment of the present utility model discloses an energy storage device, comprising a heat dissipation module and the cabinet of the first aspect, wherein the heat dissipation module is accommodated in the accommodation slot, the first limiting member abuts against an end of the heat dissipation module facing the same direction as the second end, and one side of the limiting portion abuts against a side of the heat dissipation module along the second direction;

[0017] The heat dissipation module is provided with a second connector at the end facing the same direction as the first end. The cabinet also includes a first connector, which is provided on the base and located at the first end. The first connector is detachably connected to the second connector.

[0018] As an optional implementation, in an embodiment of the present utility model, the first connecting member and the second connecting member are detachably connected via a fastener, and the installation direction of the fastener is the same as the first direction.

[0019] As an optional embodiment, in an embodiment of the present utility model, one of the first connecting member and the second connecting member is provided with a through hole, and the other is provided with a through groove, and the through groove extends along the second direction, and the fastener passes through the through groove and is connected to the through hole.

[0020] As an optional embodiment, in an embodiment of the present utility model, the cabinet includes at least two of the first connecting members, at least two of the first connecting members are arranged at intervals along the second direction, there are multiple second connecting members corresponding to the first connecting members, and multiple second connecting members are arranged at intervals along the second direction at the end of the heat dissipation module facing the same direction as the second end, so as to be detachably connected to the first connecting member one by one.

[0021] As an optional implementation, in an embodiment of the present utility model, the energy storage device further includes a plurality of battery modules, the plurality of battery modules are arranged in the cabinet, and the heat dissipation module is used to be connected to the battery modules for heat dissipation of the battery modules.

[0022] In a fourth aspect, an embodiment of the present utility model discloses an electrical device, comprising the energy storage device of the second aspect or the third aspect, wherein the energy storage device is used to supply power to the electrical device.

[0023] Compared with the prior art, the embodiments of the present invention have at least the following beneficial effects:

[0024] In an embodiment of the present invention, a first limiting member is provided on the base, the first limiting member is located at the second end of the receiving slot, and the first limiting member abuts against an end of the heat dissipation module that faces the same direction as the second end, thereby achieving limitation in the first direction. At the same time, a limiting portion of the second limiting member is connected to the first limiting member, and an end of the limiting portion away from the first limiting member is connected to a guide portion. The guide portion extends from the limiting portion toward the first end in an inclined manner in the first direction and gradually moves away from the side of the limiting portion for abutting against the heat dissipation module. The guide portion can provide an installation guide when the heat dissipation module moves from the first end to the second end into the receiving slot and abuts against one side of the limiting portion. Moreover, when one side of the heat dissipation module along the second direction abuts against one side of the limiting portion, the limiting portion can limit the heat dissipation module along the second direction. In this way, the position of the heat dissipation module in the receiving slot is limited in multiple directions, the heat dissipation module can be accurately installed in the cabinet, and the installation accuracy of the heat dissipation module is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this technical field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 This is a schematic structural diagram of an energy storage device disclosed in Example 1 of the present utility model;

[0027] Figure 2 This is a structural diagram of a cabinet disclosed in the first embodiment of the present utility model;

[0028] Figure 3 This is a structural diagram of an energy storage device (omitting the battery module) disclosed in Example 1 of the present utility model;

[0029] Figure 4 This is a schematic diagram of the exploded structure of an energy storage device (omitting the battery module) disclosed in Example 1 of the present utility model;

[0030] Figure 5 This is a schematic structural diagram of the first limiting member and the second limiting member disclosed in the first embodiment of the present utility model;

[0031] Figure 6This is a schematic structural diagram of the second position-limiting member disclosed in the first embodiment of the present utility model;

[0032] Figure 7 yes Figure 4 Schematic diagram of the enlarged structure at I in the middle;

[0033] Figure 8 This is a simplified structural diagram of the electrical equipment disclosed in Example 2 of the present utility model;

[0034] Figure 9 It is a structural diagram of the energy storage system disclosed in Example 3 of the present utility model.

[0035] Description of main reference numerals

[0036] 100, energy storage device; 10, cabinet; 11, base; 111, receiving groove; 111a, first end; 111b, second end; 112, bottom plate; 113, first side plate; 114, second side plate; 12, first stopper; 12a, heat dissipation window; 13, second stopper; 131, first bending portion; 132, second bending portion; 13a, stopper; 13b, guide portion; 13c, mounting portion; 14, first connecting member; 14 a, through hole; 14b, third bending portion; 141, first connecting portion; 142, second connecting portion; 15, fastener; 16, fixing member; 20, heat dissipation module; 21, second connecting member; 21a, through groove; 30, battery module; 200, electrical equipment; 300, energy storage system; 310, high-voltage cable; 320, first electric energy conversion device; 330, second electric energy conversion device; x, first direction; y, second direction; z, height direction. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] In this utility model, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe the utility model and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0039] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0040] Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0041] Furthermore, the terms "first," "second," etc., are primarily used to distinguish between different devices, elements, or components (which may or may not be of the same type and configuration), and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Unless otherwise specified, "plurality" means two or more.

[0042] The utility model discloses a cabinet, an energy storage device and electrical equipment. The heat dissipation module can be accurately installed on the cabinet, and the installation accuracy of the heat dissipation module is high.

[0043] The following describes some embodiments of the present application in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features therein may be combined with each other.

[0044] Because the energy people need is highly temporal and spatially dependent, rational energy utilization and improved efficiency require a medium or device that can store one form of energy in the same form or convert it into another, allowing it to be released in a specific form based on future application needs. Currently, the primary method for generating green electricity is to develop green energy sources such as photovoltaics and wind power to replace fossil fuels. However, wind and solar power are generally intermittent and volatile, leading to grid instability, insufficient peak power, and excessive off-peak power. Unstable voltage can also damage power supply. Consequently, insufficient electricity demand or insufficient grid capacity can lead to "wind and solar curtailment." Addressing these issues requires energy storage. This involves converting electrical energy into other forms of energy through physical or chemical means, storing them, and then converting them back into electricity when needed. Simply put, energy storage is like a large "power bank," storing electricity when photovoltaic or wind power is plentiful and releasing it when needed.

[0045] Taking electrochemical energy storage as an example, this solution provides an energy storage device with a group of chemical batteries. The energy storage device mainly uses the chemical elements in the batteries as energy storage media. The charging and discharging process is accompanied by chemical reactions or changes in the energy storage medium. Simply put, the electricity generated by wind and solar energy is stored in the chemical batteries. When the use of external electricity reaches its peak, the stored electricity is released for use, or transferred to places where electricity is scarce for use.

[0046] Currently, energy storage (i.e., energy storage) has a wide range of application scenarios, including power generation side energy storage, grid side energy storage, and power consumption side energy storage. The corresponding types of energy storage devices include:

[0047] (1) Large-scale energy storage power stations applied to wind power and photovoltaic power stations can help renewable energy generation meet grid connection requirements and improve the utilization rate of renewable energy. As a high-quality active / reactive power supply on the power supply side, energy storage power stations can achieve load matching of electricity in time and space, enhance the ability to absorb renewable energy, reduce instantaneous power changes, reduce the impact on the power grid, improve the absorption of new energy generation, and are of great significance in grid system backup, alleviating peak load power supply pressure, and peak and frequency regulation.

[0048] (2) Energy storage containers used on the grid side are mainly used for peak load regulation, frequency regulation, and relief of grid congestion. They can realize peak load shaving and valley filling of electricity load, that is, charging the energy storage battery when the electricity load is low and releasing the stored electricity during the peak load period, thereby achieving a balance between electricity production and consumption;

[0049] (3) Small energy storage cabinets used on the power consumption side, whose main functions are self-generation and self-use of electricity, peak-valley price arbitrage, capacity cost management, and improving power supply reliability. According to different application scenarios, energy storage on the power consumption side can be divided into industrial and commercial energy storage cabinets, household energy storage devices, energy storage charging piles, etc., which are generally used in conjunction with distributed photovoltaics. Industrial and commercial users can use energy storage for peak-valley price arbitrage and capacity cost management. In the power market that implements peak-valley electricity prices, by charging the energy storage system when the electricity price is low and discharging the energy storage system when the electricity price is high, peak-valley electricity price arbitrage is achieved, reducing electricity costs. In addition, industrial enterprises that are subject to two-part electricity prices can use energy storage systems to store energy during low electricity consumption and discharge it during peak load, thereby reducing peak power and the maximum demand reported, and achieving the purpose of reducing capacity electricity charges. Household photovoltaic storage can improve the level of self-generation and self-use of electricity. Due to high electricity prices and poor power supply stability, the demand for household photovoltaic installation is driven. Considering that photovoltaic power generation occurs during the day, while user loads are generally higher at night, deploying energy storage can better utilize photovoltaic power, increasing self-generation and self-consumption while reducing electricity costs. Furthermore, energy storage is required for backup power in areas such as communication base stations and data centers.

[0050] Example 1

[0051] Please also refer to Figures 1 to 4 , an energy storage device 100 provided in the first embodiment of the present invention includes a cabinet 10 and a heat dissipation module 20, the cabinet 10 includes a base 11, a first limiting member 12 and a second limiting member 13, the base 11 has a receiving groove 111, the receiving groove 111 is extended along the first direction x, the receiving groove 111 has a first end 111a and a second end 111b opposite to each other in the first direction x, the receiving groove 111 is used to accommodate the heat dissipation module 20 that moves from the first end 111a to the second end 111b and enters the receiving groove 111, the first limiting member 12 is provided on the base 11, the first limiting member 12 is located at the second end 111b, and the first limiting member 12 is used to abut against the end of the heat dissipation module 20 that faces the same direction as the second end 111b, combined with Figure 5 and Figure 6 As shown, the second limiting member 13 includes a limiting portion 13a and a guiding portion 13b. The limiting portion 13a is connected to the first limiting member 12, and the limiting portion 13a extends from the first limiting member 12 along the first direction x to the first end 111a. One side of the limiting portion 13a is used to abut against the side of the heat dissipation module 20 along the second direction y. The guiding portion 13b is connected to the end of the limiting portion 13a away from the first limiting member 12. The guiding portion 13b extends from the limiting portion 13a obliquely to the first direction x to the first end 111a, and gradually away from the side of the limiting portion 13a for abutting against the heat dissipation module 20. The guiding portion 13b is used to provide an installation guide for the heat dissipation module 20 to move from the first end 111a to the second end 111b into the accommodating groove 111 and abut against one side of the limiting portion 13a.

[0052] The first direction x and the second direction y are different directions. The first direction x may be the length direction of the heat dissipation module 20 , and the second direction y may be the width direction of the heat dissipation module 20 , or vice versa. This embodiment does not specifically limit this.

[0053] The number of the second limiting member 13 can be one or more, such as Figure 3 As shown, the number of the second limiting members 13 shown in this embodiment is two, and the two second limiting members 13 are arranged at intervals from the first limiting member 12, one of the second limiting members 13 abuts against one side of the heat dissipation module 20 along the second direction y, and the other second limiting member 13 abuts against the other side of the heat dissipation module 20 along the second direction y.

[0054] Each battery module 30 includes a single battery pack or a plurality of battery cells.

[0055] In this embodiment, a first limiting member 12 is provided on the base 11, and the first limiting member 12 is located at the second end 111b of the accommodating groove 111. The first limiting member 12 is used to abut against the end of the heat dissipation module 20 that faces the same direction as the second end 111b, thereby achieving the limitation in the first direction x. At the same time, the limiting portion 13a of the second limiting member 13 is connected to the first limiting member 12, and the end of the limiting portion 13a away from the first limiting member 12 is connected to the guide portion 13b, and the guiding portion 13b is used to tilt from the limiting portion 13a. The guide portion 13b extends toward the first end 111a in the first direction x and is gradually disposed away from the side of the stopper 13a for abutting the heat dissipation module 20. The guide portion 13b is capable of providing installation guidance when the heat dissipation module 20 moves from the first end 111a to the second end 111b into the receiving groove 111 and abuts against one side of the stopper 13a. Furthermore, when one side of the heat dissipation module 20 abuts against the side of the stopper 13a along the second direction y, the stopper 13a can limit the heat dissipation module 20 along the second direction y. In this way, the position of the heat dissipation module 20 within the receiving groove 111 is limited in multiple directions, allowing the heat dissipation module 20 to be accurately installed in the cabinet 10, with high installation precision.

[0056] That is to say, by using the guide part 13b for guidance, when the heat dissipation module 20 is installed in the accommodating groove 111, it can be accurately installed to the position where the two sides of the heat dissipation module 20 respectively abut against the limiting parts 13a of the two second limiting members 13, thereby reducing the operational difficulty of installing the heat dissipation module 20 and the cabinet 10 and improving the installation efficiency.

[0057] For example, Figure 6 As shown, the second limiting member 13 is a sheet metal member and has a first bending portion 131 . The first bending portion 131 is used to form a limiting portion 13a and a guiding portion 13b that are bent and connected to each other.

[0058] In some embodiments, such as Figure 1 As shown, the energy storage device 100 also includes a plurality of battery modules 30, and the plurality of battery modules 30 are arranged in the cabinet 10. The heat dissipation module 20 is used to connect with the battery modules 30 to dissipate heat for the battery modules 30. In this way, the heat dissipation module 20 can be accurately installed in the cabinet 10, the installation accuracy of the heat dissipation module 20 is high, the accuracy of the connection of the pipes or lines between the battery modules 30 and the heat dissipation module 20 is high, the stress after installation is small, and connection failure can be avoided. For example, when the heat dissipation module 20 is a liquid cooling unit, the pipe for conveying coolant between the liquid cooling unit and the battery module 30 can be accurately docked. When the heat dissipation module 20 is an air cooling unit, the air duct for supplying air between the air cooling unit and the battery module 30 can be accurately docked.

[0059] That is, when the heat dissipation module 20 is installed in the cabinet 10, the first and second position limiters 12 and 13 are used to limit the position. The heat dissipation module 20 can be accurately installed in the cabinet 10 without multiple adjustments, thus avoiding the situation where the installer has difficulty in operating the heavy heat dissipation module 20 and the installation efficiency is low due to multiple adjustments. In addition, the heat dissipation module 20 can be precisely connected to the battery module 30, especially through the pipe connection to achieve cooling and heat dissipation. The pipe connection location has low stress, high connection reliability, and good sealing performance.

[0060] When the heat dissipation module 20 is placed in the receiving groove 111, the bottom of the heat dissipation module 20 rests on the bottom wall of the receiving groove 111. At this point, the heat dissipation module 20 is positioned relative to the cabinet 10 along the height direction z. Furthermore, this embodiment also constrains the heat dissipation module 20 along the second direction y and the first direction x. This allows the heat dissipation module 20 to be positioned in all three degrees of freedom in space, enabling precise installation within the cabinet 10.

[0061] For example, Figure 4 As shown, the base 11 includes a bottom plate 112, a first side plate 113 and a second side plate 114. The first side plate 113 and the second side plate 114 are spaced apart from each other along the second direction y on the bottom plate 112, and are enclosed with the bottom plate 112 to form a receiving groove 111. The bottom plate 112 is used to support the heat dissipation module 20 located in the receiving groove 111.

[0062] In some embodiments, such as Figure 5 and Figure 6 As shown, the second position-limiting member 13 further includes a mounting portion 13c, which is connected to the first position-limiting member 12 and extends along the second direction y. The end of the position-limiting member 13a away from the guide portion 13b is connected to the mounting portion 13c, and the projection of the mounting portion 13c on the first position-limiting member 12 at least partially overlaps with the projection of the guide portion 13b on the first position-limiting member 12. Thus, by extending the mounting portion 13c along the second direction y, the mounting portion 13c has a larger connection area with the first position-limiting member 12, thereby improving the connection strength between the first position-limiting member 12 and the second position-limiting member 13. Furthermore, the projection of the mounting portion 13c on the first position-limiting member 12 at least partially overlaps with the projection of the guide portion 13b on the first position-limiting member 12, thereby preventing the mounting portion 13c from interfering with the abutment between the heat dissipation module 20 and the first position-limiting member 12.

[0063] Exemplarily, the second limiting member 13 is a sheet metal member and has a second bending portion 132 . The second bending portion 132 is used to form a limiting portion 13 a and a mounting portion 13 c that are bent and connected to each other.

[0064] Optionally, the first stopper 12 is provided with a heat dissipation window 12a, which is located between the two second stoppers 13. The heat dissipation window 12a is provided corresponding to one end of the liquid cooling assembly along the first direction x that faces the first stopper 12. Thus, by providing the heat dissipation window 12a corresponding to one end of the liquid cooling assembly along the first direction x that faces the first stopper 12, it is possible to prevent the entire surface of the first stopper 12 from abutting one end of the liquid cooling assembly, thereby affecting the heat dissipation of the heat dissipation module 20 itself. Heat generated by the heat dissipation module 20 when cooling the battery module 30 can be dissipated through the heat dissipation window 12a, achieving a better cooling effect.

[0065] In some embodiments, such as Figure 3 and Figure 7 As shown, the heat dissipation module 20 is provided with a second connector 21 at the end facing the same direction as the first end 111a. The cabinet 10 further includes a first connector 14, which is provided on the base 11 and located at the first end 111a. The first connector 14 is detachably connected to the second connector 21. Thus, by detachably connecting the second connector 21 to the first connector 14, the heat dissipation module 20 can be fixed to and separated from the cabinet 10, facilitating maintenance and replacement of the heat dissipation module 20.

[0066] For example, the first connector 14 and the second connector 21 are detachably connected via a fastener 15, and the installation direction of the fastener 15 is the same as the first direction x. Thus, since the installation direction of the fastener 15 is the same as the first direction x, after the heat dissipation module 20 is installed in the receiving groove 111 of the cabinet 10 along the first direction x, the fastener 15 can be connected to the first connector 14 and the second connector 21 from the heat dissipation module 20 along the first direction x away from the first stopper 12, thereby achieving a detachable connection between the first connector 14 and the second connector 21, with relatively low operational difficulty.

[0067] Alternatively, as Figure 7 As shown, one of the first connector 14 and the second connector 21 is provided with a through hole 14a, and the other is provided with a through slot 21a, and the through slot 21a extends along the second direction y. The fastener 15 passes through the through slot 21a and is connected to the through hole 14a. In this way, on the one hand, the fastener 15 is connected to the through hole 14a and the through slot 21a, so that the first connector 14 and the second connector 21 are detachably connected. On the other hand, the through slot 21a extends along the second direction y, and the position of the through slot 21a and the through hole 14a along the second direction y can change as the position of the heat dissipation module 20 relative to the cabinet 10 along the second direction y changes. Therefore, after the heat dissipation module 20 is respectively abutted against the two second stoppers 13 on both sides along the second direction y, the through hole 14a and the through slot 21a can always be connected by the fastener 15.

[0068] The fasteners 15 may include bolts, screws, rivets, or a combination of bolts and nuts, etc., which may be selected according to the circumstances and are not specifically limited in this embodiment.

[0069] In some embodiments, each first connector 14 includes a first connecting portion 141 and a second connecting portion 142. The first connecting portion 141 is disposed on the inner sidewall of the receiving groove 111 along the second direction y and extends along the first direction x. The second connecting portion 142 is connected to the first connecting portion 141 and extends from the first connecting portion 141 along the second direction y away from the inner sidewall of the receiving groove 111. The second connecting portion 142 is detachably connected to the second connector 21. In this way, by disposing the first connecting portion 141 in the receiving groove 111 and the second connecting portion 142 extending along the second direction y, second connecting portions 142 with different extension lengths can be used according to heat dissipation modules 20 of different widths, thereby ensuring accurate connection between the second connector 21 and the second connecting portion 142 of the heat dissipation module 20.

[0070] Exemplarily, the first connecting member 14 is a sheet metal member, and the first connecting member 14 has a third bending portion 14 b , which is used to form a first connecting portion 141 and a second connecting portion 142 that are bent and connected to each other.

[0071] Optionally, the first connector 14 is detachably mounted on the base 11. Thus, by virtue of the first connector 14 being detachable relative to the base 11, when the size of the heat dissipation module 20 along the second direction y varies, the first connector 14 of different sizes can be promptly replaced to match the size of the heat dissipation module 20 in the second direction y.

[0072] In some embodiments, such as Figure 3 As shown, the cabinet 10 further includes a fixing member 16, which is disposed on the base 11 and located at the first end 111a. The first connector 14 is disposed on a side of the fixing member 16 that is away from the inner sidewall of the accommodating groove 111 along the second direction y. Thus, on the one hand, by providing the fixing member 16 and utilizing the fixing member 16 to position the first connector 14, the first connector 14 can be installed in the accommodating groove 111. On the other hand, utilizing the dimension of the fixing member 16 along the second direction y can reduce the dimension of the first connector 14 along the second direction y, resulting in a higher structural strength of the first connector 14 and a lower risk of deformation. This provides for a more stable connection between the second connector 21 of the heat dissipation module 20 and the first connector 14.

[0073] In addition, the first connecting member 14 is fixedly connected to the accommodating groove 111 through the fixing member 16, and the heat dissipation module 20 is fixedly connected to the first connecting member 14 through the second connecting member 21, so that the heat dissipation module 20 can be fixedly installed to the accommodating groove 111, thereby improving the connection reliability between the heat dissipation module 20 and the cabinet 10.

[0074] Exemplarily, the cabinet 10 includes a plurality of first connectors 14, which are spaced apart along the second direction y within the receiving groove 111. A plurality of second connectors 21 are provided at one end of the heat dissipation module 20 facing away from the first stopper 12. The plurality of second connectors 21 are spaced apart along the second direction y, and the plurality of second connectors 21 extend away from the heat dissipation module 20 along the second direction y and are detachably connected to the plurality of first connectors 14. Thus, through the detachable connection between the plurality of first connectors 14 and the plurality of second connectors 21, the connection strength between the heat dissipation module 20 and the cabinet 10 is high, and the stability is excellent.

[0075] like Figure 4 As shown, Figure 4 It is shown that two first connecting members 14 cooperate with two second connecting members 21. In some other embodiments, the number of the first connecting members 14 and the second connecting members 21 can also be three, four, five, etc., which is not specifically limited in this embodiment.

[0076] Example 2

[0077] See also Figure 8 , is a simplified structural diagram of an electric device 200 provided in Example 2 of the present utility model. The electric device 200 includes the energy storage device 100 of Example 2, and the energy storage device 100 is used to supply power to the electric device 200.

[0078] Example 3

[0079] See Figure 9 , is a schematic diagram of the structure of the energy storage system 300 of the third embodiment of the present invention, and this application Figure 9 The embodiment is described by taking the shared energy storage scenario on the power generation / distribution side as an example, but the energy storage device 100 of the present application is not limited to the energy storage scenario on the power generation / distribution side.

[0080] The present application provides an energy storage system 300, which includes: a high-voltage cable 310, a first electric energy conversion device 320, a second electric energy conversion device 330 and the energy storage device 100 provided in the present application. In the power generation state, the first electric energy conversion device 320 and the second electric energy conversion device 330 are used to convert other forms of energy into electric energy, which is connected to the high-voltage cable 310 and supplied to the power distribution network for use. When the power load is low and the first electric energy conversion device 320 and the second electric energy conversion device 330 generate excess power, the excess power is stored in the energy storage device 100, reducing the wind and solar power curtailment rates and improving the problem of new energy power generation and consumption. When the power load is high, the power grid issues an instruction to transmit the power stored in the energy storage device 100 in conjunction with the high-voltage cable 310 in a grid-connected mode to the power consumption side, providing peak shaving, frequency regulation, standby and other services for the power grid operation, giving full play to the peak shaving role of the power grid, promoting peak shaving and valley filling of the power grid, and alleviating the power supply pressure of the power grid.

[0081] Optionally, the first electric energy conversion device 320 and the second electric energy conversion device 330 can convert at least one of solar energy, light energy, wind energy, thermal energy, tidal energy, biomass energy and mechanical energy into electric energy.

[0082] There can be multiple energy storage devices 100, which are connected in series or in parallel. The multiple energy storage devices 100 are supported and electrically connected using isolation plates (not shown). In this embodiment, "multiple" refers to two or more.

[0083] Optionally, the energy storage device 100 may include, but is not limited to, single cells, battery modules, battery packs, battery systems, battery boxes, battery cabinets, and the like. The energy storage device 100 provided in the embodiments of this application may be, but is not limited to, the products listed above, or may be in other application forms. The embodiments of this application do not impose strict limitations on the application form of the energy storage device 100. The embodiments of this application illustrate the energy storage device 100 as a multi-core battery. When the energy storage device 100 is a single cell, it may be at least one of a cylindrical battery, a prismatic battery, and the like.

[0084] Among them, the energy storage device 100 can be used in a grid energy storage scenario. The grid energy storage scenario can also include power generation equipment and power consumption equipment; the power generation equipment can be the first power conversion device 320 or the second power conversion device 330, and the power consumption equipment can be the object provided by the electric energy transmitted through the high-voltage cable 310, for example, it can supply power to loads in industrial, commercial or household scenarios, without specific restrictions. The energy storage device 100 is electrically connected to the power generation equipment and the power consumption equipment respectively, and the electricity generated by the power generation equipment can be supplied to the energy storage device 100 for storage, or supplied to the power consumption equipment. The electricity stored in the energy storage device 100 can also be supplied to the power consumption equipment.

[0085] The above is a detailed introduction to a cabinet, an energy storage device and an electrical equipment disclosed in the embodiment of the present invention. This article uses individual examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the cabinet, energy storage device and electrical equipment of the present invention and its core ideas; at the same time, for general technical personnel in this field, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A cabinet, characterized in that: Applied to an energy storage device, the energy storage device includes a heat dissipation module, and the cabinet includes: The base has a receiving groove, the receiving groove extending along a first direction, the receiving groove having a first end and a second end opposite to each other in the first direction, and the receiving groove is used to receive the heat dissipation module that moves from the first end to the second end and enters the receiving groove; a first limiting member, the first limiting member being provided on the base, the first limiting member being located at the second end, and the first limiting member being configured to abut against an end of the heat dissipation module facing the same direction as the second end; and The second limiting member includes a limiting portion and a guiding portion, the limiting portion is connected to the first limiting member, and the limiting portion extends from the first limiting member along the first direction to the first end, one side of the limiting portion is used to abut against one side of the heat dissipation module along the second direction, the guiding portion is connected to an end of the limiting portion away from the first limiting member, the guiding portion extends from the limiting portion obliquely in the first direction to the first end, and gradually away from the side of the limiting portion used to abut against the heat dissipation module, the guiding portion is used to provide an installation guide for the heat dissipation module to move from the first end to the second end into the accommodating groove and abut against one side of the limiting portion.

2. The cabinet according to claim 1, characterized in that: The second limiting member also includes a mounting portion, which is connected to the first limiting member and extends along the second direction. One end of the limiting member away from the guide portion is connected to the mounting portion, and the projection of the mounting portion on the first limiting member at least partially overlaps with the projection of the guide portion on the first limiting member.

3. The cabinet according to claim 1, characterized in that: The cabinet includes at least two second position-limiting members, and the at least two second position-limiting members are spaced apart along the second direction.

4. The cabinet according to claim 3, characterized in that: The first limiting member is provided with a heat dissipation window, and the heat dissipation window is located in the interval between at least two of the second limiting members.

5. The cabinet according to any one of claims 1 to 4, characterized in that: The base includes a bottom plate, a first side plate and a second side plate. The first side plate and the second side plate are spaced apart from each other on the bottom plate along the second direction and are enclosed with the bottom plate to form the receiving groove. The bottom plate is used to support the heat dissipation module located in the receiving groove.

6. The cabinet according to any one of claims 1 to 4, characterized in that: The cabinet further includes a first connecting member, which is provided on the base and located at the first end. The first connecting member is used to be detachably connected to an end of the heat dissipation module that faces the same direction as the first end.

7. The cabinet according to claim 6, characterized in that: The first connecting member includes a first connecting portion and a second connecting portion, the first connecting portion is arranged on the inner side wall of the accommodating groove along the second direction, and the first connecting portion is extended along the first direction, the second connecting portion is connected to the first connecting portion, and the second connecting portion extends from the first connecting portion along the second direction away from the inner side wall of the accommodating groove, and the second connecting portion is used to be detachably connected to the end of the heat dissipation module facing the same direction as the first end.

8. The cabinet according to claim 6, characterized in that: The first connecting member is detachably mounted on the base.

9. The cabinet according to claim 6, characterized in that: The cabinet further includes a fixing member, which is disposed on the base and located at the first end. The first connecting member is disposed on a side of the fixing member away from the inner side wall of the accommodating groove along the second direction.

10. The cabinet according to claim 6, characterized in that: The cabinet includes at least two first connecting members, and the at least two first connecting members are spaced apart along the second direction.

11. An energy storage device, characterized in that: It includes a heat dissipation module and a cabinet according to any one of claims 1 to 10, wherein the heat dissipation module is accommodated in the accommodating groove, the first limiting member abuts against the end of the heat dissipation module facing the same direction as the second end, and one side of the limiting portion abuts against one side of the heat dissipation module along the second direction.

12. An energy storage device, characterized in that: The cabinet comprises a heat dissipation module and the cabinet according to any one of claims 1 to 5, wherein the heat dissipation module is accommodated in the accommodation groove, the first limiting member abuts against an end of the heat dissipation module facing the same direction as the second end, and one side of the limiting portion abuts against a side of the heat dissipation module along the second direction; The heat dissipation module is provided with a second connector at the end facing the same direction as the first end. The cabinet also includes a first connector, which is provided on the base and located at the first end. The first connector is detachably connected to the second connector.

13. The energy storage device according to claim 12, characterized in that: The first connecting member and the second connecting member are detachably connected via a fastener, and the installation direction of the fastener is the same as the first direction.

14. The energy storage device according to claim 13, characterized in that One of the first connecting member and the second connecting member is provided with a through hole, and the other one is provided with a through slot, and the through slot is extended along the second direction, and the fastener passes through the through slot and is connected to the through hole.

15. The energy storage device according to any one of claims 12 to 14, characterized in that: The cabinet includes at least two first connecting members, at least two of which are spaced apart along the second direction, and there are multiple second connecting members corresponding to the first connecting members, and multiple second connecting members are spaced apart along the second direction at the end of the heat dissipation module facing the same direction as the second end, so as to be detachably connected to the first connecting member one by one.

16. The energy storage device according to any one of claims 11 to 14, characterized in that: The energy storage device further includes a plurality of battery modules, which are arranged in the cabinet. The heat dissipation module is used to be connected to the battery modules to dissipate heat for the battery modules.

17. An electrical device, characterized in that: It comprises the energy storage device according to any one of claims 11 to 14, wherein the energy storage device is used to supply power to the electrical equipment.

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