energy storage tank

Abstract

This application provides an energy storage box, comprising: a box body, wherein a fan is provided inside the box body, and heat dissipation holes are provided on the box body; at least one battery module, wherein the at least one battery module is disposed in the box body, and the at least one battery module includes a plurality of battery cells arranged in series, wherein a heat dissipation fin is provided between any two battery cells arranged along a first direction, and the battery cells arranged along a second direction are spaced apart; and a fixing frame, wherein the fixing frame is disposed in the box body, and the at least one battery module is fixed on the fixing frame, and the fixing frame is spaced apart from the inner wall of the box body. This application can improve the heat dissipation performance of the energy storage box and reduce safety hazards.

Description

Technical Field

[0001] This utility model relates to the field of battery energy storage technology, and specifically to an energy storage box. Background Technology

[0002] Energy storage systems, such as energy storage cabinets or boxes, store electrical energy and release it when needed to balance grid load and improve energy efficiency. They are widely used in various scenarios, including peak-valley regulation and backup power in power systems, or as home energy storage systems to ensure reliable power supply to households. In practical use, the internal batteries of energy storage systems are prone to heat buildup during discharge, which can reduce battery life and even pose safety hazards. Therefore, the heat dissipation performance of energy storage systems is particularly important. Utility Model Content

[0003] In order to overcome the defects in the prior art, this utility model provides an energy storage box that can improve the heat dissipation performance of the energy storage box and reduce safety hazards.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] This utility model discloses an energy storage box, comprising:

[0006] The enclosure has a fan inside and ventilation holes on its surface.

[0007] At least one battery module is disposed in the housing. The at least one battery module includes a plurality of battery cells arranged in series. A heat sink is provided between any two battery cells arranged along a first direction, and there is a gap between the battery cells arranged along a second direction.

[0008] A mounting bracket is provided inside the housing, and at least one battery module is fixed on the mounting bracket. The mounting bracket is spaced apart from the inner wall of the housing.

[0009] The energy storage box in this application improves the ventilation and heat dissipation performance of the energy storage box by installing a fan inside the box, opening heat dissipation holes on the box, and placing heat dissipation plates between adjacent cells through multiple heat dissipation structures. This avoids the safety hazards caused by the rising temperature of the cells inside the box and extends the service life of the battery.

[0010] Furthermore, it also includes a fixing assembly, which includes an insulating plate disposed on the outside of multiple series-connected cells, an end plate disposed on the side of the insulating plate opposite to the cells, and fixing straps disposed on the end plate and the outer periphery of the multiple series-connected cells. The end plate is connected to the fixing frame. By connecting multiple series-connected cells together through the insulating plate, end plate, and fixing straps, they can be stably fixed in the box, preventing the cells from shaking when the energy storage box is moved.

[0011] Furthermore, adhesive is provided on both the side of the insulating plate facing the battery cell and the side facing away from the battery cell to achieve connection and fixation between the insulating plate, the end plate, and the battery cell.

[0012] Furthermore, the battery module comprises two units, which are connected in series and spaced apart along a third direction on the mounting frame. This spaced arrangement of the battery modules prevents potential hazards such as overheating and fire caused by short circuits between cells, thus improving the safety performance of the energy storage box.

[0013] Furthermore, the mounting frame includes a first support plate, a second support plate, a plurality of first brackets that can be arranged and connected between the first and second support plates, second brackets respectively disposed at the bottom of the first and second support plates, and third brackets respectively disposed on the first and second support plates. Two battery modules are respectively disposed on the first and second support plates and located inside the third brackets. The height of the first brackets is higher than the height of the battery modules. This creates a gap between the two battery modules arranged along a third direction.

[0014] Furthermore, the battery cells arranged along the first direction are connected in series via a first conductive element, the battery cells arranged along the second direction are connected in series via a second conductive element, and the battery modules arranged along the third direction are connected in series via a third conductive element. This achieves the series connection of multiple battery cells, enabling the energy storage box to supply power.

[0015] Furthermore, the bottom of the enclosure is equipped with casters. The casters allow the energy storage box to be moved as needed, eliminating the need to consider the installation location and conditions, thus reducing the installation cost.

[0016] Furthermore, the housing has a recessed portion with an interface inside, through which the battery module is connected in series. This recessed structure prevents the energy storage box's interface from being exposed to the outside, thus avoiding damage from the external environment.

[0017] Furthermore, the top of the box is equipped with a removable lid. The lid isolates the inside of the box from the outside, preventing foreign objects from entering the box.

[0018] Furthermore, the bottom of the enclosure is provided with a detachable mounting plate, and the mounting bracket is connected to the mounting plate. The mounting plate allows for quick installation of the mounting bracket and battery module inside the enclosure, facilitating disassembly and maintenance.

[0019] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0020] This application improves the ventilation and heat dissipation performance of the energy storage box by installing a fan inside the box, opening heat dissipation holes on the box, and placing heat dissipation plates between adjacent cells. This multi-layer heat dissipation structure avoids the cell temperature inside the box from rising and causing safety hazards, and can extend the battery's lifespan.

[0021] To make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a structural diagram of an energy storage box provided in an embodiment of the present utility model;

[0024] Figure 2 This is a partial internal view of an energy storage box provided in an embodiment of the present utility model;

[0025] Figure 3 This is a partial layout diagram of a battery module provided in an embodiment of this utility model;

[0026] Figure 4 This is a partial layout diagram of another battery module provided in an embodiment of this utility model;

[0027] Figure 5 This is a connection structure diagram of a battery module provided in an embodiment of the present utility model.

[0028] The reference numerals in the above figures are as follows: 1. Housing; 2. Housing cover; 3. Mounting plate; 4. Fan; 5. Heat dissipation hole; 6. MSD; 7. Communication interface; 8. Positive interface of energy storage connector; 9. Negative interface of energy storage connector; 10. Caster wheel; 11. Battery cell; 12. Heat sink; 13. Insulating plate; 14. End plate; 15. Fixing strap; 16. First conductive element; 17. Second conductive element; 18. Third conductive element; 19. First support plate; 20. Second support plate; 21. First bracket; 22. Second bracket; 23. Third bracket. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. In addition, the accompanying drawings of the present invention are only simple schematic illustrations and are not depictions based on actual dimensions, as stated in advance.

[0030] In this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "forward," "backward," "between," "nearer," and "farthest" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. It should also be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various components or signals, these components or signals should not be limited by these terms. These terms are primarily used to distinguish one component from another, or one signal from another. Furthermore, the term "or" as used herein should, as appropriate, include any combination of one or more of the related listed items.

[0032] Reference Figures 1-5 This application provides an energy storage box, including a box body 1, at least one battery module disposed within the box body 1, and a mounting bracket for fixing the at least one battery module. The mounting bracket is spaced apart from the inner wall of the box body 1 to provide heat dissipation space. A fan 4 is provided inside the box body 1, and heat dissipation holes 5 are provided on the box body 1. The at least one battery module includes multiple battery cells 11 arranged in series. A heat sink 12 is provided between any two battery cells 11 arranged along a first direction. The heat sink 12 can dissipate heat in a timely manner when the battery cells 11 are working, enhancing the ventilation and heat dissipation performance of the energy storage box. The battery cells 11 arranged along a second direction are spaced apart to prevent short circuits between multiple battery cells 11 that could lead to overheating and fire hazards.

[0033] With the above structure, the energy storage box provided in this application embodiment has strong heat dissipation performance, which can avoid the safety hazards caused by the temperature rise of the battery cells inside the box and can extend the service life of the battery.

[0034] like Figure 1 and Figure 2As shown, the box body 1 is provided with a box cover 2. In one embodiment, the box body 1 and the box cover 2 are connected by bolts, so that the box cover 2 is detachable.

[0035] In this embodiment, the bottom of the box 1 is provided with a detachable mounting plate 3, and the fixing bracket is fixed inside the box 1 by connecting to the mounting plate 3.

[0036] In another possible embodiment, the mounting bracket can be directly installed at the bottom of the housing 1.

[0037] In one embodiment, the bottom of the housing 1 is provided with casters 10 to make the energy storage box movable.

[0038] The housing 1 has a recessed portion with an interface inside, and the battery module is connected to the interface after being connected in series. In this embodiment, the interface includes an MSD (manual maintenance switch) 6, a communication interface 7, a positive interface of the energy storage connector 8, and a negative interface of the energy storage connector 9.

[0039] like Figures 3 to 5 As shown, when multiple battery cells 11 are connected in series, the positive and negative terminals of the multiple battery cells 11 arranged along the first direction are connected in series through the first conductive element 16, and then the positive and negative terminals of the multiple battery cells 11 arranged along the second direction are connected in series through the second conductive element 17, thereby realizing the series connection between multiple battery cells arranged in different directions. After the battery modules are connected in series, the positive terminal of the battery module is connected to the positive terminal interface 8 of the energy storage connector through the conductive element, the negative terminal of the battery module is connected to the negative terminal interface 9 of the energy storage connector, and the battery module is connected to the MSD (manual maintenance switch). Optionally, the conductive element is made of copper. The first direction and the second direction are the directions indicated by arrows a and b in the figure, respectively.

[0040] This application provides a fixing component that can fix multiple series-connected battery cells 11 together to keep the battery module stable during movement. Specifically, as shown in the example... Figure 3 As shown, the fixing assembly includes an insulating plate 13 disposed on the outside of a plurality of battery cells 11 arranged along the first direction, an end plate 14 disposed on the side of the insulating plate 13 away from the battery cells 11, and a fixing strap 15 disposed on the outer periphery of the end plate 14 and the plurality of series-connected battery cells 11. After the plurality of series-connected battery cells 11 arranged along the first direction are fixed together, they are connected to the fixing frame through the end plate 14.

[0041] In this embodiment, adhesive is provided on both the side of the insulating plate 13 facing the battery cell 11 and the side away from the battery cell 11.

[0042] It should be noted that the number of battery modules can be flexibly set according to actual needs. In this embodiment, two battery modules are set inside the housing 1 as an example. Figure 4 and Figure 5As shown, two battery modules are connected in series and spaced apart on a mounting frame along a third direction. In this embodiment, the third direction is the height direction of the mounting frame (indicated by arrow c in the figure). The series connection and mounting methods of the two battery modules are the same, as detailed in the above embodiments, and will not be repeated here.

[0043] To improve the stability of the battery module, the mounting bracket includes a first support plate 19, a second support plate 20, multiple first brackets 21 that can be connected between the first support plate 19 and the second support plate 20, second brackets 22 respectively located at the bottom of the first support plate 19 and the bottom of the second support plate 20, and third brackets 23 respectively located on the first support plate 19 and the second support plate 20. The two battery modules are respectively located on the first support plate 19 and the second support plate 20 and are located inside the third bracket 23. Multiple battery cells 11 arranged along the first direction are fixed by the fixing components and then connected and fixed to the third bracket 23 by the end plate 14. The height of the first bracket 21 is higher than the height of the battery module, thereby providing heat dissipation space for the two battery modules.

[0044] It should be noted that the various structures in the embodiments of this application may be connected by existing known methods, such as bolts or pins, which will not be described in detail here.

[0045] This utility model uses specific embodiments to illustrate the principle and implementation of the utility model. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​the utility model. Therefore, the content of this specification should not be construed as a limitation of the utility model.

Claims

1. An energy storage tank, characterized by, include: The enclosure has a fan inside and ventilation holes on its surface. At least one battery module is disposed in the housing. The at least one battery module includes a plurality of battery cells arranged in series. A heat sink is provided between any two battery cells arranged along a first direction, and there is a gap between the battery cells arranged along a second direction. A mounting bracket is provided inside the housing, and at least one battery module is fixed on the mounting bracket. The mounting bracket is spaced apart from the inner wall of the housing.

2. An energy storage tank according to claim 1, wherein, It also includes a fixing component, which includes an insulating plate disposed on the outside of a plurality of series-connected cells, an end plate disposed on the side of the insulating plate away from the cells, and a fixing strap disposed on the end plate and the outer periphery of the plurality of series-connected cells, wherein the end plate is connected to the fixing frame.

3. An energy storage tank according to claim 2, wherein, The insulating plate is provided with adhesive on both the side facing the battery cell and the side away from the battery cell.

4. The energy storage tank of claim 1, wherein, The battery module is provided in two units, which are connected in series and spaced apart on the fixing frame along a third direction.

5. An energy storage tank according to claim 4, wherein, The mounting bracket includes a first support plate, a second support plate, a plurality of first brackets that can be arranged and connected between the first support plate and the second support plate, second brackets respectively disposed at the bottom of the first support plate and the bottom of the second support plate, and third brackets respectively disposed on the first support plate and the second support plate. Two battery modules are respectively disposed on the first support plate and the second support plate and located inside the third bracket. The height of the first bracket is higher than the height of the battery modules.

6. The energy storage tank of claim 1, wherein, The battery cells arranged along the first direction are connected in series through a first conductive element, the battery cells arranged along the second direction are connected in series through a second conductive element, and the battery modules arranged along the third direction are connected in series through a third conductive element.

7. The energy storage tank of claim 1, wherein, The bottom of the box is equipped with casters.

8. The energy storage tank of claim 1, wherein, The housing has a recessed portion, and an interface is provided in the recessed portion. The battery module is connected in series with the interface.

9. The energy storage tank of claim 1, wherein, The top of the box is equipped with a removable cover.

10. The energy storage tank of claim 1, wherein, The bottom of the box is provided with a detachable mounting plate, and the fixing bracket is connected to the mounting plate.

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