Energy storage cabinet and energy storage system

Abstract

The utility model discloses an energy storage cabinet and an energy storage system, and belongs to the technical field of energy storage. The energy storage cabinet comprises a cabinet body and at least one stand column, an opening is formed in one face of the cabinet body, a containing cavity communicated with the opening is defined in the cabinet body, and the containing cavity is used for containing a battery module; the stand column is movably installed in the cabinet body between a first position and a second position, the stand column is used for limiting the battery module under the condition that the stand column is located at the first position, and the stand column is used for avoiding the battery module under the condition that the stand column is located at the second position. The stand column is movably installed in the cabinet body between the first position and the second position, and the stand column is used for avoiding the battery module under the condition that the stand column is located at the second position, so that the upper limit requirement for the size design of the battery module is improved, the proper size range of the designed battery module is enlarged, and the design efficiency is improved. And the energy density of the energy storage system is effectively improved.

Description

Technical Field

[0001] The present application belongs to the field of energy storage technology, and in particular, relates to an energy storage cabinet and an energy storage system. Background Art

[0002] With the rapid development of the energy storage market, the requirements for the energy density of energy storage systems (i.e., total system capacity ÷ system volume) are becoming increasingly higher. Considering that the energy storage cabinet is the basic unit of the energy storage system, the energy storage cabinet is used to accommodate battery modules, and the size of a single battery module is often increased to improve the energy density. However, since the energy storage cabinet includes a cabinet body and a plurality of columns arranged in the cabinet body at intervals along the width direction, and a plurality of battery modules are arranged in the cabinet body along the width direction of the energy storage cabinet, in order to ensure smooth extraction of the battery modules, the width of a single battery module cannot be greater than the distance between two adjacent columns, which greatly limits the width data of a single battery module, making it impossible to reasonably increase the size of the battery module and making it difficult to efficiently achieve an increase in the energy density of the energy storage system. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes an energy storage cabinet and an energy storage system, wherein a column is movably installed in the cabinet between a first position and a second position, and the column is used to avoid the battery module when it is in the second position, thereby increasing the upper limit requirement for the size design of the battery module, thereby increasing the suitable size range of the designed battery module, and effectively realizing the improvement of the energy density of the energy storage system.

[0004] In a first aspect, the present application provides an energy storage cabinet, comprising:

[0005] The energy storage cabinet is characterized by comprising:

[0006] A cabinet, one side of which is provided with an opening, and a receiving cavity in communication with the opening is defined in the cabinet, and the receiving cavity is used to receive the battery module;

[0007] At least one column is movably installed in the cabinet between a first position and a second position, the column is used to limit the battery module when it is in the first position, and is used to avoid the battery module when it is in the second position.

[0008] According to the energy storage cabinet of the present application, when it is necessary to take or place the battery module, the movable column is placed in the second position to increase the size of the corresponding installation opening, thereby avoiding the battery module; when the battery module is placed in the accommodating cavity, the movable column is placed in the first position, which not only supports the cabinet, but also reduces the movement of the battery module in the accommodating cavity during transportation by making the outer wall of the column abut against the side of the battery module close to the opening. At the same time, since the column can be switched between the first position and the second position and can avoid the battery module in the second position, the upper limit requirement for the size design of the battery module is increased, thereby increasing the suitable size range of the designed battery module, and effectively realizing the improvement of the energy density of the energy storage system.

[0009] According to an embodiment of the present application, the cabinet has a first connection structure, the column has a second connection structure, and the first connection structure and the second connection structure are slidably connected along the length direction of the cabinet.

[0010] According to one embodiment of the present application, one of the first connecting structure and the second connecting structure includes a guide member, which extends along the length direction of the cabinet, and the other of the first connecting structure and the second connecting structure includes a guide groove, which is slidably matched with the guide member.

[0011] According to an embodiment of the present application, the cabinet has a third connection structure, the column has a fourth connection structure, and the third connection structure and the fourth connection structure are rotatably connected around the height direction of the cabinet.

[0012] According to one embodiment of the present application, one of the third connecting structure and the fourth connecting structure includes a positioning hole, the axis of the positioning hole is parallel to the height direction of the cabinet, and the other of the third connecting structure and the fourth connecting structure includes a rotating shaft, which is rotatably matched with the positioning hole.

[0013] According to one embodiment of the present application, the length of the column is a, and the width of the column is b, wherein: a / b≥2.

[0014] According to one embodiment of the present application, it also includes:

[0015] An operating part, wherein the operating part is at least connected to the column and is used to realize any switching of the column between the first position and the second position.

[0016] According to one embodiment of the present application, it also includes:

[0017] At least one battery module is placed in the accommodating cavity.

[0018] According to one embodiment of the present application, it also includes:

[0019] A cabinet door, hinged to the cabinet body, for covering the opening;

[0020] An air cooling module is installed on the cabinet door and is used to dissipate heat from the accommodating cavity.

[0021] In a second aspect, the present application provides an energy storage system, the energy storage system comprising:

[0022] Power generation equipment; and

[0023] The energy storage cabinet as described above is electrically connected to the power generation device.

[0024] According to the energy storage system of the present application, by making the columns of the energy storage cabinet movably installed in the cabinet between a first position and a second position, and the columns are used to avoid the battery modules when they are in the second position, the upper limit requirements for the size design of the battery modules are increased, thereby making it possible to increase the suitable size range of the designed battery modules, and effectively realizing the improvement of the energy density of the energy storage system.

[0025] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0027] Figure 1 is an exploded view of the energy storage cabinet provided in an embodiment of the present application;

[0028] Figure 2 This is a schematic diagram of the structure of a cabinet provided by an embodiment of the present application without installing a battery module;

[0029] Figure 3 This is a schematic diagram of the structure of the first cabinet and column assembly provided in an embodiment of the present application;

[0030] Figure 4 It is a structural schematic diagram of the second cabinet and column assembly provided in an embodiment of the present application;

[0031] Figure 5 It is a structural schematic diagram of the cabinet body and cabinet door assembly provided in an embodiment of the present application.

[0032] Reference numerals:

[0033] 100, cabinet; 102, accommodating cavity; 1021, battery compartment; 1022, integrated compartment; 103, guide piece; 104, positioning hole;

[0034] 111, bottom plate; 112, top plate; 113, side plate; 114, baffle plate; 115, partition plate;

[0035] 121, vertical beam; 122, horizontal beam;

[0036] 200, column; 201, rotating shaft;

[0037] 300. Battery module; 400. Cabinet door; 500. Air cooling module; 600. Electronic components. DETAILED DESCRIPTION

[0038] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0039] Reference below Figure 1-Figure 5 An energy storage cabinet provided in an embodiment of the present application is described, and the energy storage cabinet includes a cabinet body 100 and at least one column 200 .

[0040] An opening is provided on one side of the cabinet 100, and a receiving cavity 102 communicating with the opening is defined in the cabinet 100, and the receiving cavity 102 is used to receive the battery module 300. The material of the cabinet 100 includes, but is not limited to, stainless steel, aluminum alloy or titanium alloy.

[0041] It is understood that the cabinet 100 includes a cabinet panel assembly and a frame assembly, and the cabinet panel assembly is installed on the frame assembly to cooperate with the cabinet door 400 to seal the accommodating cavity 102. Among them, the cabinet panel assembly is composed of a bottom plate 111, a top plate 112, and three side plates 113 connected in sequence by the cabinet frame assembly to connect the top plate 112 and the bottom plate 111; the frame assembly is composed of a plurality of vertical beams 121 and a plurality of horizontal beams 122. That is, the inner wall of the side plate 113, the upper surface of the bottom plate 111, the lower surface of the top plate 112 and the frame assembly are surrounded to form the accommodating cavity 102, and the edges of the horizontal beams 122 and the edges of the vertical beams 121 at the two side plates 113 that are arranged oppositely and not connected to the other side plate 113 are surrounded to form an opening, so as to facilitate the battery module 300 to be taken out of the accommodating cavity 102 or put into the accommodating cavity 102 from the opening. Exemplarily, the connection method between the cabinet panel assembly and the frame assembly may include but is not limited to bolt connection, rivet connection or snap connection, etc.

[0042] In this embodiment, in order to ensure the position limitation of the battery module 300 and reduce the movement of the battery module 300 in the accommodating cavity 102 during transportation, the cabinet 100 further includes a baffle 114 disposed at the opening, and the baffle 114 is respectively connected to the bottom plate 111 and the vertical beams 121 corresponding to the two oppositely disposed side plates 113. Exemplarily, the connection between the baffle 114 and the bottom plate 111 and the connection between the baffle 114 and the vertical beam 121 may include but are not limited to bolt connection, rivet connection or snap connection.

[0043] The column 200 is movably installed in the cabinet 100 between a first position and a second position. The column 200 is used to limit the battery module 300 when in the first position, and is used to avoid the battery module 300 when in the second position. The material of the column 200 includes but is not limited to stainless steel, aluminum alloy or titanium alloy.

[0044] It should be noted that the two ends of the column 200 are movably connected to the cross beam 122 and the baffle 114 located above the opening, that is, the opening is divided into at least two installation ports distributed along the width direction by the column 200, and the size of each installation port is adjusted by switching the column 200 between the first position and the second position, so as to take out the corresponding battery module 300 from different installation ports.

[0045] It can be understood that when the battery module 300 needs to be taken and placed, the movable column 200 is placed in the second position to increase the size of the corresponding installation opening, thereby avoiding the battery module 300; when the battery module 300 is placed in the accommodating cavity 102, the movable column 200 is placed in the first position, so that it can not only support the cabinet 100, but also reduce the movement of the battery module 300 in the accommodating cavity 102 during transportation by making the outer wall of the column 200 abut against the side of the battery module 300 close to the opening. At the same time, since the column 200 can be switched between the first position and the second position and can avoid the battery module 300 in the second position, the upper limit requirement for the size design of the battery module 300 is increased, thereby increasing the suitable size range of the battery module 300 that can be designed, and effectively realizing the improvement of the energy density of the energy storage system.

[0046] According to the energy storage cabinet provided in the embodiment of the present application, the column 200 is movably installed in the cabinet body 100 between a first position and a second position, and the column 200 is used to avoid the battery module 300 when it is in the second position, thereby increasing the upper limit requirement for the size design of the battery module 300, thereby expanding the suitable size range of the designed battery module 300, and effectively realizing the improvement of the energy density of the energy storage system.

[0047] In some embodiments, in order to realize that the column 200 can be movably installed in the cabinet 100 between the first position and the second position, the embodiments of the present application are specifically described below from two different implementation perspectives.

[0048] 1. The cabinet 100 has a first connection structure, and the column 200 has a second connection structure. The first connection structure and the second connection structure are slidably connected along the length direction of the cabinet 100.

[0049] It is understandable that the lower surface of the upper crossbeam 122 (i.e., the upper crossbeam 122 in the following text) corresponding to the opening and the upper surface of the baffle 114 are both provided with a first connection structure, and the column 200 is correspondingly provided with a second connection structure slidably connected to the first connection structure. That is, when one of the battery modules 300 needs to be taken out, it is only necessary to slide the column 200 to the second position, and at the same time, the length of the installation opening corresponding to the battery module 300 is increased to be greater than the width of the battery module 300 to play a role in avoidance. It should be noted that the length direction of the installation opening, the length direction of the cabinet 100, and the width direction of the battery module 300 are all consistent.

[0050] In order to realize the sliding connection between the column 200 and the upper beam 122 and the baffle 114, as shown in FIG. Figure 3 As shown, one of the first connection structure and the second connection structure includes a guide member 103, and the guide member 103 extends along the length direction of the cabinet 100, and the other of the first connection structure and the second connection structure includes a guide groove, and the guide groove is slidably matched with the guide member 103. In this embodiment, the guide members 103 are respectively arranged on the surfaces close to the upper crossbeam 122 and the baffle 114, and the outer wall of the column 200 is respectively provided with through guide grooves near the upper and lower ends, so the column 200 is slidably sleeved on the outside of the guide member 103 through the guide groove to achieve sliding cooperation with the cabinet 100. Of course, in other embodiments, the surfaces close to the upper crossbeam 122 and the baffle 114 can also be provided with guide grooves, and the upper and lower ends of the column 200 can be respectively provided with guide members 103, so the column 200 slides in the guide groove through the guide member 103 to achieve sliding connection between the column 200 and the cabinet 100.

[0051] 2. The cabinet 100 has a third connection structure, and the column 200 has a fourth connection structure. The third connection structure and the fourth connection structure are rotatably connected around the height direction of the cabinet 100.

[0052] It is understandable that the lower surface of the upper crossbeam 122 and the upper surface of the baffle 114 are both provided with a third connection structure, and the column 200 is correspondingly provided with a fourth connection structure rotatably connected to the third connection structure. That is, when one of the battery modules 300 needs to be taken out, it is only necessary to rotate the column 200 to the second position, and at the same time, the length of the installation opening corresponding to the battery module 300 is increased until it is greater than the width of the battery module 300, so as to play a role of avoidance.

[0053] In order to realize the rotation connection between the column 200 and the upper beam 122 and the baffle 114, as shown in FIG. Figure 4 As shown, one of the third connection structure and the fourth connection structure includes a positioning hole 104, the axis of which is parallel to the height direction of the cabinet 100, and the other of the third connection structure and the fourth connection structure includes a rotating shaft 201, which is rotatably matched with the positioning hole 104. In this embodiment, the positioning holes 104 are respectively arranged on the surfaces close to the upper crossbeam 122 and the baffle 114, and the upper and lower ends of the column 200 are respectively convexly provided with positioning shafts, so the column 200 is rotated in the positioning hole 104 through the rotating shaft 201 to rotate with the cabinet 100. Of course, in other embodiments, the rotating shaft 201 can also be arranged on the surfaces close to the upper crossbeam 122 and the baffle 114, and the positioning holes 104 are opened on the upper and lower end surfaces of the column 200.

[0054] In order to ensure that the column 200 is rotatably connected to the cabinet 100 and can limit the battery module 300 in the first position and avoid the battery module 300 in the second position, the length of the column 200 is a, and the width of the column 200 is b, where: a / b≥2. It should be noted that when the column 200 is in the first position, its length direction is consistent with the length direction of the cabinet 100, and when the column 200 is in the second position, its width direction is consistent with the length direction of the cabinet 100.

[0055] In some embodiments, the energy storage cabinet further includes an operating unit, which is connected to at least the column 200 and is used to realize arbitrary switching of the column 200 between the first position and the second position.

[0056] It is understandable that the operation part is provided so that the column 200 can be unlocked and locked in the first position and the second position respectively, so that the column 200 can be kept in the corresponding second position and the first position when the battery module 300 is conveniently taken out and accommodated. The operation part includes but is not limited to fixing parts such as bolts or pins, as long as the column 200 can be fixed relatively to the upper beam 122 and the baffle 114 respectively by bolts, and this embodiment does not impose specific restrictions on this.

[0057] In some embodiments, Figure 1As shown, the energy storage cabinet also includes at least one battery module 300, and the battery module 300 is placed in the accommodating cavity 102. When multiple battery modules 300 are provided, the multiple battery modules 300 are arranged at intervals along the length direction of the cabinet 100, and each battery module 300 includes multiple batteries stacked in sequence along the height direction to make full use of the space of the accommodating cavity 102 as much as possible to improve the electric energy. It can be understood that the number of batteries and the number of battery modules 300 can be designed according to actual needs, and this embodiment does not impose specific restrictions on this.

[0058] Similarly, multiple columns 200 may be provided to further improve the structural stability of the entire energy storage cabinet. Multiple columns 200 are provided along the length direction of the cabinet body 100. It is understandable that the number of columns 200 may be designed according to actual needs, and this embodiment does not impose any specific restrictions on this.

[0059] In some embodiments, Figure 1 and Figure 5 As shown, the energy storage cabinet also includes a cabinet door 400, which is hinged on the cabinet body 100 and is used to cover the opening to ensure the airtightness of the accommodating cavity 102. It can be understood that the material of the cabinet door 400 includes but is not limited to stainless steel, aluminum alloy or titanium alloy.

[0060] In some embodiments, considering that the battery module 300 generates a lot of heat during operation, such as Figure 5 As shown, the energy storage cabinet also includes an air cooling module 500, which is installed on the cabinet door 400 and is used to dissipate heat from the accommodating cavity 102 to ensure that the battery module 300 can always work at a suitable temperature, thereby extending the service life of the battery module 300 and the entire energy storage cabinet. The air cooling unit achieves a cooling effect by circulating air and transferring heat from the accommodating cavity 102 to the outside of the cabinet 100, and includes but is not limited to a compressor, a condenser, an evaporator, and an expansion valve.

[0061] In some embodiments, Figure 1 , Figure 2 and Figure 5 As shown, the energy storage cabinet further includes an electronic device 600, and the cabinet body 100 further includes a partition 115, which is located in the accommodating chamber 102 and is respectively connected to the side plate 113 and the baffle 114 to divide the accommodating chamber 102 into a battery compartment 1021 and an integrated compartment 1022 that are not connected to each other, the battery module 300 is accommodated in the battery compartment 1021, and the electronic device 600 is electrically connected to the battery module 300 and accommodated in the integrated compartment 1022. The electronic device 600 includes but is not limited to an energy storage converter, a junction cabinet, an electrical cabinet, and a fire protection module.

[0062] The embodiment of the present application also provides an energy storage system, which includes a power generation device and the above energy storage cabinet, wherein the power generation device and the energy storage cabinet are electrically connected.

[0063] The power generation device may include, but is not limited to, a photovoltaic power generation device, a hydropower generation device, a wind power generation device, or a tidal power generation device, etc., and this embodiment does not impose any specific restrictions on this.

[0064] According to the energy storage system provided in the embodiment of the present application, the column 200 of the energy storage cabinet is movably installed in the cabinet body 100 between a first position and a second position, and the column 200 is used to avoid the battery module 300 when it is in the second position, thereby improving the upper limit requirement for the size design of the battery module 300, thereby expanding the suitable size range of the designed battery module 300, and effectively realizing the improvement of the energy density of the energy storage system.

[0065] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0066] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0067] In the description of this application, "first feature" or "second feature" may include one or more of the features.

[0068] In the description of the present application, “plurality” means two or more.

[0069] In the description of the present application, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0070] In the description of the present application, “above”, “over” and “above” a first feature to a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0071] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0072] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An energy storage cabinet, characterized in that: include: A cabinet, one side of which is provided with an opening, and a receiving cavity in communication with the opening is defined in the cabinet, and the receiving cavity is used to receive the battery module; At least one column is movably installed in the cabinet between a first position and a second position, the column is used to limit the battery module when it is in the first position, and is used to avoid the battery module when it is in the second position.

2. The energy storage cabinet according to claim 1, characterized in that: The cabinet has a first connection structure, and the column has a second connection structure. The first connection structure and the second connection structure are slidably connected along the length direction of the cabinet.

3. The energy storage cabinet according to claim 2, characterized in that: One of the first connection structure and the second connection structure includes a guide member extending along the length direction of the cabinet, and the other of the first connection structure and the second connection structure includes a guide groove slidingly matched with the guide member.

4. The energy storage cabinet according to claim 1, characterized in that: The cabinet has a third connection structure, the column has a fourth connection structure, and the third connection structure and the fourth connection structure are rotatably connected around the height direction of the cabinet.

5. The energy storage cabinet according to claim 4, characterized in that: One of the third connection structure and the fourth connection structure includes a positioning hole, the axis of which is parallel to the height direction of the cabinet, and the other of the third connection structure and the fourth connection structure includes a rotating shaft, which is rotatably matched with the positioning hole.

6. The energy storage cabinet according to claim 4, characterized in that: The length of the column is a, and the width of the column is b, wherein: a / b≥2.

7. The energy storage cabinet according to any one of claims 1 to 6, characterized in that: Also includes: An operating part, wherein the operating part is at least connected to the column and is used to realize any switching of the column between the first position and the second position.

8. The energy storage cabinet according to any one of claims 1 to 6, characterized in that: Also includes: At least one battery module is placed in the accommodating cavity.

9. The energy storage cabinet according to any one of claims 1 to 6, characterized in that: Also includes: A cabinet door, hinged to the cabinet body, for covering the opening; An air cooling module is installed on the cabinet door and is used to dissipate heat from the accommodating cavity.

10. An energy storage system, characterized in that: include: Power generation equipment; as well as The energy storage cabinet according to any one of claims 1 to 9, wherein the energy storage cabinet is electrically connected to the power generation device.

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