Energy storage device

Abstract

The utility model discloses an energy storage device. The energy storage device comprises at least one battery pack, the battery pack comprises a voltage converter and a hoisting structure, the hoisting structure is fixed to the voltage converter, and the end, provided with the hoisting structure, of the voltage converter is exposed to one side of the battery pack. According to the energy storage device, the battery pack can be conveniently and rapidly assembled through the hoisting structure on the voltage converter, and the attractive and stable energy storage device is formed.

Description

Technical Field

[0001] This application relates to the technical field of energy storage, and particularly to an energy storage device. Background Art

[0002] The energy storage device includes one or more battery packs. The battery pack mainly includes a box body, a voltage converter (DC-to-DC Converter, DCDC), and a battery module. The assembly method of the battery pack determines the aesthetics and stability of the energy storage device. Therefore, it is necessary to consider how to assemble the battery pack more conveniently and quickly to form an aesthetically pleasing and stable energy storage device. Summary of the Utility Model

[0003] In view of this, this application aims to solve at least one of the problems in the related art to some extent. For this reason, the purpose of this application is to provide an energy storage device.

[0004] This application provides an energy storage device. The energy storage device includes at least one battery pack. The battery pack includes a voltage converter and a lifting structure. The lifting structure is fixed on the voltage converter, and one end of the voltage converter with the lifting structure is exposed on one side of the battery pack.

[0005] In some embodiments, the voltage converter includes a heat dissipation bracket. The lifting structure is detachably arranged on the heat dissipation bracket, or the heat dissipation bracket and the lifting structure are integrally formed.

[0006] In some embodiments, the lifting structure includes at least one first lifting hole, and the first lifting hole is arranged at one end of the heat dissipation bracket.

[0007] In some embodiments, the lifting structure further includes at least one second lifting hole. The heat dissipation bracket includes heat dissipation fins, and the second lifting hole is arranged between the heat dissipation fins.

[0008] In some embodiments, the first lifting hole and / or the second lifting hole are oval holes, circular holes or square holes with different sizes.

[0009] In some embodiments, the second lifting hole is a threaded hole.

[0010] In some embodiments, the lifting structure further includes at least one screw rod, and the screw rod is arranged between the heat dissipation fins.

[0011] In some embodiments, fixing members are further provided on the heat dissipation bracket, and / or fixing members are provided on the lifting structure. The plurality of battery packs are tightly connected through the fixing members.

[0012] In some embodiments, the fixing member includes a fixing hole and a fixing post, and the fixing post is cooperatively connected with the fixing hole to tightly connect a plurality of the battery packs.

[0013] In some embodiments, the fixing hole and the first lifting hole are located at the same end of the heat dissipation bracket, and the fixing post and the first lifting hole are respectively located at two ends of the heat dissipation bracket.

[0014] The energy storage device of the present application can conveniently and quickly assemble the battery packs through the lifting structure on the voltage converter to form a beautiful and stable energy storage device.

[0015] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Brief Description of the Drawings

[0016] The above-mentioned and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description of the embodiments in conjunction with the drawings, where:

[0017] Figure 1 is a schematic structural diagram of an energy storage device according to some embodiments of the present application;

[0018] Figure 2 is a schematic structural diagram of a battery pack according to some embodiments of the present application;

[0019] Figure 3 is a schematic structural diagram of a battery pack according to some embodiments of the present application;

[0020] Figure 4 is a schematic structural diagram of a heat dissipation bracket with a lifting structure according to some embodiments of the present application;

[0021] Figure 5 is a disassembled structural diagram of a heat dissipation bracket and a lifting structure according to some embodiments of the present application;

[0022] Figure 6 is a schematic structural diagram of stacked and fastened battery packs according to some embodiments of the present application.

[0023] Main Markings in the Drawings

[0024] Energy storage device 1000;

[0025] Battery pack 100; Control unit 200; Base 300;

[0026] Voltage converter 10, heat dissipation bracket 11, heat sink 111, fixing member 12, fixing hole 121, fixing post 122, screw hole 13; hoisting structure 20, first hoisting hole 21, circular hole 211, oval hole 212, second hoisting hole 22, screw hanging ear 23; box body 30, battery compartment housing 31, first housing 311, second housing 312, connecting member 32. Detailed implementation manners

[0027] The following describes in detail the implementation manners of the present application. Examples of the implementation manners are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The implementation manners described below with reference to the drawings are exemplary only for explaining the present application and should not be construed as a limitation of the present application.

[0028] In the description of the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0029] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installation" and "connection" should be understood in a broad sense. It may refer to fixed connection, detachable connection, or integral connection; it may be mechanical connection, electrical connection, or communication with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0030] The following disclosure provides many different implementation manners or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various implementation manners and / or settings discussed.

[0031] The following describes in detail the implementation manners of the present application. Examples of the implementation manners are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The implementation manners described below with reference to the drawings are exemplary only for explaining the present application and should not be construed as a limitation of the present application.

[0032] Please refer to Figure 1 and Figure 2 , this application discloses an energy storage device 1000. The energy storage device 100 includes a battery pack 100, a control unit 200, and a base 300. The base 300 is used to support the battery pack 100. The control unit 200 is located on top of the battery pack 100. The control unit 200 is electrically connected to the battery pack 100. For example, the control unit 200 can be used to control the charging, discharging, or usage status of the battery pack 100, etc.

[0033] The energy storage device 1000 includes at least one battery pack 100. That is, the number of battery packs 100 can be one or more, and multiple battery packs 100 are stacked in sequence between the base 300 and the control unit 200.

[0034] Please refer to Figure 2 , the battery pack 100 includes a voltage converter 10 and a lifting structure 20. The lifting structure 20 is fixed on the voltage converter 10, and one end of the voltage converter 10 with the lifting structure 20 is exposed on one side of the battery pack 100.

[0035] Specifically, as Figure 1 shown, the energy storage device 1000 can include two battery packs 100. The two battery packs 100 are lifted and stacked through the lifting structure 20 on the voltage converter 10 to form the energy storage device 1000.

[0036] In this way, the energy storage device 1000 of this application can conveniently and quickly assemble the battery pack 100 through the lifting structure 20 on the voltage converter 10 to form a beautiful and stable energy storage device 1000.

[0037] Please refer to Figure 2 and Figure 3 , the battery pack 100 further includes a box body 30. After the voltage converter 10 is installed in the box body 30, the voltage converter 10 can be locked in the box body 30 first. For example, the voltage converter 10 can be locked in the box body 30 by screws.

[0038] One end of the voltage converter 10 with the lifting structure 20 is exposed on one side of the box body 30 and can be lifted and assembled through the lifting structure 20.

[0039] The box body 30 includes a battery compartment housing 31, and the battery compartment housing 31 is used to accommodate the circuit fuse structure 10 and the voltage converter 10. The battery compartment housing 31 includes a first housing 311 and a second housing 312 arranged oppositely. The box body 30 further includes a connecting member 32, and the connecting member 32 is connected to the battery compartment housing 31. For example, the connecting member 32 is fixed to the battery compartment housing 31 by screws. As Figure 2As shown, the connecting member 32 can be located on the first housing 311 of the battery compartment housing 31, and a part of the connecting member 32 extends beyond the top of the first housing 311 of the battery compartment housing 31. During the stacking process of the battery pack 100, the part of the connecting member 32 that extends beyond the top of the battery compartment housing 31 is used to fix the battery compartment housing 31 of the adjacent box body 30.

[0040] Please refer to Figure 4 and Figure 5 , the voltage converter 10 includes a heat dissipation bracket 11. The hoisting structure 20 is detachably arranged on the heat dissipation bracket 11. Alternatively, the heat dissipation bracket 11 and the hoisting structure 20 are integrally formed.

[0041] That is to say, the hoisting structure 20 of the present application can be integrally formed on the heat dissipation bracket 11, without additionally occupying the internal space of the box body 30. The structure of the hoisting structure 20 of the present application is simple and easy to mass-produce.

[0042] In addition, please refer to Figure 5 , the hoisting structure 20 of the present application can also not be integrally formed with the heat dissipation bracket 11, and the hoisting structure 20 is detachably arranged on the heat dissipation bracket 11. For example, at least one screw hanging ear 23 can be provided on the hoisting structure 20, and a screw hole 13 corresponding to the screw hanging ear is provided on the heat dissipation bracket 11. The hoisting structure 20 can be connected to the heat dissipation bracket 11 by screws passing through the screw hanging ear and the screw hole on the heat dissipation bracket 11.

[0043] As Figure 5 shown, 4 screw hanging ears 23 can be provided on the hoisting structure 20, and screw holes 13 corresponding to the screw hanging ears 23 are provided on the heat dissipation bracket 11. The hoisting structure 20 can be connected and arranged on the heat dissipation bracket 11 by 4 screws passing through 4 screw hanging ears 23.

[0044] In this way, the hoisting structure 20 of the present application is detachably arranged on the heat dissipation bracket 11, which can facilitate the replacement of the hoisting structure 20 of the present application.

[0045] Please refer to Figure 4 , in some embodiments, the hoisting structure 20 includes at least one first lifting hole 21. The first lifting hole 21 is arranged at one end of the heat dissipation bracket 11.

[0046] Specifically, when one first lifting hole 21 is arranged on the heat dissipation bracket 11, it can be arranged at the middle position or the edge position of the end of the heat dissipation bracket 11, so as to realize the hoisting of the battery pack 100 by passing a lifting rope through the first lifting hole 21.

[0047] When multiple first suspension holes 21 are provided on the heat dissipation bracket 11, they can be respectively arranged at the middle position and the edge position of the end of the heat dissipation bracket 11, so as to realize hoisting the battery pack 100 by passing a suspension rope through the first suspension holes 21 respectively, and increase the stability during hoisting.

[0048] That is to say, the energy storage device 1000 of the present application can pass the suspension rope of the machine through one or more first suspension holes 21 on the heat dissipation bracket 11 to realize hoisting the battery pack 100 by the machine.

[0049] Please refer to Figure 4 , a plurality of first suspension holes 21 are provided at intervals on the heat dissipation bracket 11. The interval distance between the plurality of first suspension holes 21 can be 2 cm, 2.3 cm, 2.5 cm, 3 cm, 3.5 cm, 3.8 cm, 4 cm, 5 cm, 6 cm or 7 cm, and there is no limitation here.

[0050] In this way, the energy storage device 1000 of the present application can realize more stable hoisting of the battery pack 100 by arranging a plurality of first suspension holes 21 at intervals on the heat dissipation bracket 11.

[0051] The hoisting structure 20 of the present application can not only hoist the battery pack 100 by passing the suspension rope of the machine through the first suspension hole 21 for machine hoisting and stacking the battery packs 100, but also manually stack the battery packs 100 by hand.

[0052] Specifically, please refer to Figure 4 , in some embodiments, the hoisting structure 20 further includes at least one second suspension hole 22. The heat dissipation bracket 11 includes heat dissipation fins 111, and the second suspension holes 22 are arranged between the heat dissipation fins 111.

[0053] In one embodiment, a support rod can be formed by connecting adjacent heat dissipation fins 111, and a second suspension hole 22 can be formed in the support rod.

[0054] Specifically, as Figure 4 shown, a second suspension hole 22 is arranged between adjacent heat dissipation fins 111 of the heat dissipation bracket 11, and a handle with a screw can be screwed into the second suspension hole 22, so as to realize manually lifting the battery pack 100 for stacking.

[0055] For example, as Figure 4 shown, the heat dissipation bracket 11 is provided with two second suspension holes 22 on the left and right sides of the heat dissipation fins 111. A handle with a screw can be respectively screwed into the two second suspension holes 22. The design of arranging two second suspension holes 22 on the left and right sides of the heat dissipation fins 111 can ensure that both hands are stressed simultaneously, which is much more labor-saving than the single handle method and is convenient for stacking and assembling the battery pack 100.

[0056] In some embodiments, the first lifting hole 21 and / or the second lifting hole 22 are oval holes, circular holes or square holes of different sizes, including the following cases: (1) The first lifting hole 21 and the second lifting hole 22 are oval holes, circular holes or square holes of the same size; (2) The first lifting hole 21 and the second lifting hole 22 are oval holes, circular holes or square holes of the same size; (3) Multiple first lifting holes 21 are oval holes, circular holes or square holes of different sizes, and the second lifting hole 22 is an oval hole, circular hole or square hole of the same size; (4) The first lifting hole 21 is an oval hole, circular hole or square hole of the same size, and multiple second lifting holes 22 are oval holes, circular holes or square holes of different sizes; (5) Multiple first lifting holes 21 are oval holes, circular holes or square holes of different sizes, and multiple second lifting holes 22 are also oval holes, circular holes or square holes of different sizes.

[0057] That is to say, the shape and size of the first lifting hole 21 of the present application can be the same as or different from the shape and size of the second lifting hole 22. The shapes and sizes of multiple first lifting holes 21 can be different from each other or the same. The shapes and sizes of multiple second lifting holes 22 can be different from each other or the same, which is not limited herein.

[0058] As Figure 4 shown, the first lifting hole 21 has two types of holes, namely a circular hole 211 and an oval hole 212. Thus, when the machine hoists the battery pack 100, lifting ropes with different diameters can pass through the circular hole 211 and the oval hole 212 to lift the battery pack 100. The hoisting process is not easy to slip, and the stacking process of the battery pack 100 is more convenient and stable.

[0059] In this way, the number, shape and size of the first lifting hole 21 and the second lifting hole 22 of the present application can be flexibly changed and set according to needs, forming a diversified design of the lifting hole structure 20 to meet the hoisting needs of different battery packs 100.

[0060] In one embodiment, the second lifting hole 22 is a threaded hole. That is, when the second lifting hole 22 is a threaded hole, a handle with a screw can be screwed into the second lifting hole 22 to realize manual lifting and stacking of the battery pack 100.

[0061] In some embodiments, the hoisting structure 20 includes at least one screw, and the screw is arranged between the heat sinks 111. The number of screws arranged between the heat sinks 111 of the heat dissipation bracket 11 can be 2, 3 or 4, which is not limited herein.

[0062] That is to say, when the heat sinks 111 of the heat dissipation bracket 11, not only threaded holes can be provided for manual lifting and stacking of the battery pack 100, but also screws can be provided. By threading a handle with a threaded hole onto the screw, manual lifting and stacking of the battery pack 100 can also be realized.

[0063] Please refer to Figure 4 , Figure 5 and Figure 6 as well. There is also a fixing member 12 provided on the heat dissipation bracket 11, and / or a fixing member 12 is provided on the hoisting structure 20. The plurality of battery packs 100 are tightly connected through the fixing member 12. That is to say, the energy storage device 1000 of the present application can also achieve the tight connection between the plurality of battery packs 100 through the fixing member 12.

[0064] There is also a fixing member 12 provided on the heat dissipation bracket 11, and / or a fixing member 12 is provided on the hoisting structure 20. That is to say, the present application can only provide the fixing member 12 on the heat dissipation bracket 11. At this time, the hoisting structure 20 and the heat dissipation bracket 11 are integrally formed, as Figure 4 and Figure 6 shown, to achieve the tight connection between the plurality of battery packs 100.

[0065] The present application can also only provide the fixing member 12 on the hoisting structure 20. At this time, the hoisting structure 20 and the heat dissipation bracket 11 are detachably arranged. The hoisting structure 20 can be a component detachably arranged around the heat dissipation bracket. For example, the hoisting structure 20 is a square ring structure, to achieve the tight connection between the plurality of battery packs 100.

[0066] The present application can also provide the fixing member 12 on both the heat dissipation bracket 11 and the hoisting structure 20 at the same time. At this time, the hoisting structure 20 and the heat dissipation bracket 11 are detachably arranged, as Figure 5 and Figure 6 shown, to achieve the tight connection between the plurality of battery packs 100.

[0067] Specifically, the fixing member 12 includes a fixing hole 121 and a fixing post 122. The fixing post 122 is cooperatively connected with the fixing hole 121 to tightly connect the plurality of battery packs 100.

[0068] That is to say, the present application can only provide the fixing hole 121 and the fixing post 122 on the heat dissipation bracket 11. At this time, the hoisting structure 20 and the heat dissipation bracket 11 are integrally formed. As Figure 4 and Figure 6 shown, the fixing post 122 is provided on the heat dissipation bracket 11, and the fixing hole 121 is provided on the hoisting structure 20 of the heat dissipation bracket 11. The fixing post 122 is cooperatively connected with the fixing hole 121 to achieve the tight connection between the plurality of battery packs 100.

[0069] The present application may also be configured with only fixing holes 121 and fixing columns 122 on the hoisting structure 20. At this time, the hoisting structure 20 is detachably arranged with the heat dissipation bracket 11, and the hoisting structure 20 may be a component detachably arranged around the heat dissipation bracket. One end of the hoisting structure 20 is provided with a fixing hole 121, and the other end of the hoisting structure 20 is provided with a fixing column 122. The fixing column 122 on the hoisting structure 20 is cooperatively connected with the fixing hole 121 to realize the fastening connection between multiple battery packs 100.

[0070] The present application may also be configured with fixing holes 121 on the heat dissipation bracket 11 and fixing columns 122 on the hoisting structure 20. Alternatively, fixing columns 122 are provided on the heat dissipation bracket 11 and fixing holes 121 are provided on the hoisting structure 20. At this time, the hoisting structure 20 is detachably arranged with the heat dissipation bracket 11. As Figure 5 and Figure 6 shown, the hoisting structure 20 is provided with fixing holes 121, and the heat dissipation bracket 11 is provided with fixing columns 122. The fixing columns 122 are cooperatively connected with the fixing holes 121 to realize the fastening connection between multiple battery packs 100.

[0071] The number of the fixing columns 122 corresponds to that of the fixing holes 121. As Figure 4 and Figure 5 shown, the hoisting structure 20 is provided with two fixing holes 121, and correspondingly, the heat dissipation bracket 11 is also provided with two fixing columns 122. That is to say, after the battery packs 100 are stacked, the fastening connection between adjacent battery packs 100 is realized through the fixing columns 122 on the upper heat dissipation bracket 11 and the fixing holes 121 on the hoisting structure 20 of the adjacent heat dissipation bracket 11, which can prevent the battery packs 100 from shaking after being stacked.

[0072] Please refer to Figure 4 、 Figure 5 and Figure 6 together. In one embodiment, the fixing hole 121 and the first lifting hole 21 are located at the same end of the heat dissipation bracket 11, and the fixing column 122 and the first lifting hole 21 are respectively located at two ends of the heat dissipation bracket 11.

[0073] That is, the fixing hole 121 and the first lifting hole 21 may be spaced apart and arranged at the same end of the heat dissipation bracket 11, so that the surrounding area of the hoisting structure 20 at one end of the heat dissipation bracket 11 can be reused, making the layout of the through holes on the heat dissipation bracket 11 or the hoisting structure 20 more reasonable. The fixing column 122 may be arranged at the end opposite to the first lifting hole 21 to facilitate connection with the fixing hole 121 on the heat dissipation bracket 11 or the hoisting structure 20 of the next adjacent voltage converter 10.

[0074] Thus, the energy storage device 100 of the present application can be provided with fixing holes 121 and fixing posts 122 to further strengthen the connection between adjacent battery packs 100, effectively avoiding the phenomenon of shaking of the battery packs 100 after being stacked, and making the assembled energy storage device 100 more stable.

[0075] The above embodiments only express several implementation manners of the present application, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. An energy storage device, characterized in that, The energy storage device includes at least one battery pack, the battery pack includes a voltage converter and a hoisting structure, the hoisting structure is fixed on the voltage converter, and one end of the hoisting structure is exposed on one side of the battery pack.

2. The energy storage device according to claim 1, wherein The voltage converter includes a heat dissipation bracket, the hoisting structure is detachably arranged on the heat dissipation bracket, or the heat dissipation bracket and the hoisting structure are integrally formed.

3. The energy storage device according to claim 2, wherein The hoisting structure includes at least one first lifting hole, and the first lifting hole is arranged at one end of the heat dissipation bracket.

4. The energy storage device according to claim 3, characterized in that, The hoisting structure further includes at least one second lifting hole, the heat dissipation bracket includes heat dissipation fins, and the second lifting hole is arranged between the heat dissipation fins.

5. The energy storage device according to claim 4, wherein The first lifting hole and / or the second lifting hole are oval holes, circular holes or square holes of different sizes.

6. The energy storage device according to claim 5, wherein, The second lifting hole is a threaded hole.

7. The energy storage device according to claim 4, wherein, The hoisting structure further includes at least one screw rod, and the screw rod is arranged between the heat dissipation fins.

8. The energy storage device according to claim 3, characterized in that The heat dissipation bracket is further provided with a fixing member, and / or the hoisting structure is provided with the fixing member, and multiple battery packs are tightly connected through the fixing member.

9. The energy storage device according to claim 8, wherein The fixing member includes a fixing hole and a fixing column, and the fixing column is cooperatively connected with the fixing hole to tightly connect multiple battery packs.

10. The energy storage device according to claim 9, wherein, The fixing hole and the first lifting hole are located at the same end of the heat dissipation bracket, and the fixing column and the first lifting hole are respectively located at both ends of the heat dissipation bracket.

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