Energy storage battery cluster

Abstract

The utility model discloses an energy storage battery cluster, which comprises a plurality of battery cells, a frame and a plurality of liquid cooling plates, the frame is of a penetrating structure, the plurality of liquid cooling plates are vertically arranged in the frame, each liquid cooling plate comprises a bottom plate and at least one side plate, the bottom plate and the side plates are provided with cooling flow channels, and the cooling flow channels are communicated with the frame. A mounting cavity is formed between each side plate and the bottom plate, the battery cells are positioned in the mounting cavities, and the bottom plate of the liquid cooling plate is positioned above the battery cells in the adjacent liquid cooling plate at the bottom. The bottom of the battery module is supported by the liquid cooling plate, and the liquid cooling plate comprises the cooling liquid inlet, the cooling liquid outlet, the bottom plate and the cooling flow channels on the side plates, so that the bottom surface and the side surface of the battery cell can be cooled. And meanwhile, as the bottom of the liquid cooling plate of the upper module is arranged above the battery module, the top of the lower battery module can be cooled.

Description

Technical Field

[0001] The utility model relates to the technical field of battery clusters, in particular to an energy storage battery cluster. Background Art

[0002] In order to meet the voltage and capacity requirements of battery energy storage, single cells are generally connected in series into modules, and then the modules are connected in series into battery packs, and then the battery packs are connected in series into battery clusters, and finally the battery clusters are connected in parallel into energy storage cabins. Among them, the battery cluster is a key component in the energy storage integration process. For a long time, the consistent energy density of battery energy storage has been a key issue restricting the development of technology. Traditional energy storage battery clusters are composed of battery packs connected in series. Since the battery pack is formed by the upper and lower shells, it will inevitably cause a certain amount of space waste. In addition, most of the current battery packs use a bottom liquid cooling plate, which has a poor cooling effect on the top of the battery cell, and also poses certain hidden dangers to the safe operation of the battery cell. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to realize an energy storage battery cluster which avoids the waste of battery pack space and optimizes the cooling effect of the top of the battery cell.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] An energy storage battery cluster includes multiple battery cells. The energy storage battery cluster also includes a frame and multiple liquid cooling plates. The frame is a through-type structure. The multiple liquid cooling plates are vertically arranged in the frame. Each of the liquid cooling plates includes a bottom plate and at least one side plate. The bottom plate and the side plates are both provided with cooling channels. An installation cavity is formed between each of the side plates and the bottom plate. The battery cells are located in the installation cavity. The bottom plate of the liquid cooling plate is located above the battery cells in the bottom adjacent to the liquid cooling plate.

[0006] Preferably, the energy storage battery cluster further includes a battery module and a module connection assembly, the battery module includes a cell connection assembly, the cells are connected in pairs via the cell connection assembly, a plurality of cells are connected in parallel and in series to form the battery module, and the battery modules are connected in series in pairs via the module connection assembly.

[0007] Preferably, the energy storage battery cluster further includes a fuse, and the fuse is located on the module connection assembly.

[0008] Preferably, a plurality of the module connection components are located on the same side of the frame.

[0009] Preferably, there are multiple battery modules, and the number of the mounting cavities is equal to the number of the battery modules.

[0010] Preferably, a plurality of the side panels are arranged in parallel.

[0011] Preferably, the energy storage battery cluster further comprises a total positive interface and a total negative interface, and the total positive interface and the total negative interface are located on the same side of the frame.

[0012] Preferably, the frame comprises a plurality of transverse ribs and a plurality of vertical ribs, the frame is formed by fixing the transverse ribs and the vertical ribs, and the four sides of the bottom plate are respectively connected to the intersections of the transverse ribs and the vertical ribs.

[0013] Preferably, a plurality of base plates are arranged in parallel.

[0014] Preferably, the liquid cooling plate further comprises a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are located on the same side of the bottom plate.

[0015] Compared with the existing technology, the energy storage battery cluster of the utility model has the following advantages:

[0016] The energy storage battery cluster of the present application has a frame provided outside the battery cluster as support. The battery cells in the battery module are connected in series through the battery cell connection assembly, and the battery modules are connected in series through the module connection assembly. A fuse is provided on the module connection assembly, which can be disconnected when the current of the battery module exceeds the limit. The bottom of the battery module is supported by a liquid cooling plate, which includes a coolant inlet and outlet, and cooling channels on the bottom plate and side plates, which can cool the bottom and sides of the battery cell. At the same time, since the bottom of the liquid cooling plate of the upper module is above the battery module, it can also cool the top of the lower battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the energy storage battery cluster of the present application;

[0018] Figure 2 for Figure 1 Schematic diagram of the framework structure;

[0019] Figure 3 for Figure 1 A schematic diagram of the structure of the energy storage battery cluster without the frame;

[0020] Figure 4 for Figure 1 A schematic diagram of the structure of a battery module;

[0021] Figure 5 for Figure 1 Schematic diagram of the structure of the liquid cooling plate.

[0022] In the figure: 100, frame; 101, horizontal ribs; 102, vertical ribs; 200, battery module; 201, battery cell; 202, battery cell connection assembly; 300, liquid cooling plate; 301, bottom plate; 302, side plate; 303, installation cavity; 304, liquid inlet; 305, liquid outlet; 400, module connection assembly; 500, fuse; 600, total positive interface; 700, total negative interface. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be another intermediate component through which it is fixed. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be another intermediate component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be another intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] Figure 1 to Figure 5 An energy storage battery cluster of the utility model includes multiple battery cells 201. The energy storage battery cluster also includes a frame 100 and multiple liquid cooling plates 300. The frame 100 is a through-type structure. The multiple liquid cooling plates 300 are vertically arranged in the frame 100. Each liquid cooling plate 300 includes a bottom plate 301 and at least one side plate 302. Cooling channels are provided on the bottom plate 301 and the side plates 302. An installation cavity 303 is formed between each side plate 302 and the bottom plate 301. The battery cell 201 is located in the installation cavity 303. The bottom plate 301 of the liquid cooling plate 300 is located above the battery cell 201 in the bottom adjacent liquid cooling plate 300.

[0027] like Figure 2As shown, the frame 100 includes a plurality of transverse ribs 101 and a plurality of vertical ribs 102 . The frame 100 is formed by fixing the transverse ribs 101 and the vertical ribs 102 . The four sides of the bottom plate 301 are respectively connected to the intersections of the transverse ribs 101 and the vertical ribs 102 .

[0028] like Figure 3 As shown, the energy storage battery cluster also includes a battery module 200 and a module connection assembly 400. The battery module 200 includes a cell connection assembly 202. The cells 201 are connected in pairs via the cell connection assembly 202. A plurality of cells 201 are connected in parallel and in series to form the battery module 200. The battery modules 200 are connected in series in pairs via the module connection assembly 400.

[0029] Specifically, there are multiple battery modules 200 , and the number of the mounting cavities 303 is equal to the number of the battery modules 200 .

[0030] Specifically, the plurality of module connection components 400 are located on the same side of the frame 100 .

[0031] The energy storage battery cluster further includes a fuse 500 , which is located on the module connection assembly 400 .

[0032] like Figure 5 As shown, the liquid cooling plate 300 further includes a liquid inlet 304 and a liquid outlet 305 , and the liquid inlet 304 and the liquid outlet 305 are located on the same side of the bottom plate 301 .

[0033] Specifically, the flow channels of the liquid cooling plate 300 are distributed on the bottom plate 301 and the side plate 302 .

[0034] Specifically, a plurality of base plates 301 are arranged in parallel.

[0035] Specifically, a plurality of side panels 302 are arranged in parallel.

[0036] The energy storage battery cluster further includes a total positive interface 600 and a total negative interface 700 . The total positive interface 600 and the total negative interface 700 are located on the same side of the frame 100 .

[0037] When the energy storage battery cluster in the present application is in use, a frame 100 is provided outside the battery cluster as a support, the battery cells 201 in the battery module 200 are connected in series through the battery cell connection assembly 202, and the battery modules 200 are connected in series through the module connection assembly 400. A fuse 500 is provided on the module connection assembly 400, which can be disconnected when the current of the battery module 200 exceeds the limit. The battery module 200 is located in the installation cavity 303, and the bottom is supported by the liquid cooling plate 300. The coolant flows in from the liquid inlet 304, flows through the flow channels of the bottom plate 301 and the side plate 302, and cools the bottom and side surfaces of the battery cell 201. At the same time, since the bottom of the liquid cooling plate 300 of the upper battery module 200 is above the battery module 200, it can also cool the top of the lower battery module 200. The energy storage battery cluster of the present application has a frame 100 provided outside the battery cluster as support. The battery cells 201 in the battery module 200 are connected in series through the battery cell connection assembly 202. The battery modules 200 are connected in series through the module connection assembly 400. A fuse 500 is provided on the module connection assembly 400, which can be disconnected when the current of the battery module 200 exceeds the limit. The bottom of the battery module 200 is supported by a liquid cooling plate 300. The liquid cooling plate 300 includes a liquid inlet 304 and a liquid outlet 305. The cooling channels on the bottom plate 301 and the side plate 302 can cool the bottom and side surfaces of the battery cells 201. At the same time, since the bottom of the liquid cooling plate 300 of the upper battery module 200 is located above the battery module 200, it can also cool the top of the lower battery module 200.

[0038] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the utility model, several modifications and improvements can be made, which are equivalent modifications and improvements made to the above embodiments based on the essential technology of the utility model, and all of them belong to the protection scope of the utility model.

Claims

1. An energy storage battery cluster, comprising a plurality of battery cells, characterized in that: The energy storage battery cluster also includes a frame and a plurality of liquid cooling plates. The frame is a through-type structure. The plurality of liquid cooling plates are vertically arranged in the frame. Each of the liquid cooling plates includes a bottom plate and at least one side plate. The bottom plate and the side plates are both provided with cooling channels. An installation cavity is formed between each of the side plates and the bottom plate. The battery cell is located in the installation cavity. The bottom plate of the liquid cooling plate is located above the battery cell in the bottom adjacent to the liquid cooling plate.

2. The energy storage battery cluster according to claim 1, characterized in that: The energy storage battery cluster also includes a battery module and a module connection component. The battery module includes a cell connection component. The cells are connected in pairs via the cell connection component. A plurality of cells are connected in parallel and in series to form the battery module. The battery modules are connected in series in pairs via the module connection component.

3. The energy storage battery cluster according to claim 2, characterized in that: The energy storage battery cluster further includes a fuse, which is located on the module connection assembly.

4. The energy storage battery cluster according to claim 2, characterized in that: A plurality of the module connection components are located on the same side of the frame.

5. The energy storage battery cluster according to claim 2, characterized in that: The number of the battery modules is multiple, and the number of the mounting cavities is equal to the number of the battery modules.

6. The energy storage battery cluster according to claim 1, characterized in that: A plurality of the side plates are arranged in parallel.

7. The energy storage battery cluster according to claim 1, characterized in that: The energy storage battery cluster further includes a total positive interface and a total negative interface, and the total positive interface and the total negative interface are located on the same side of the frame.

8. The energy storage battery cluster according to claim 1, characterized in that: The frame comprises a plurality of transverse ribs and a plurality of vertical ribs. The frame is formed by fixing the transverse ribs and the vertical ribs. The periphery of the bottom plate is respectively connected to the intersections of the transverse ribs and the vertical ribs.

9. The energy storage battery cluster according to claim 1, characterized in that: A plurality of base plates are arranged in parallel.

10. The energy storage battery cluster according to claim 1, characterized in that: The liquid cooling plate further comprises a liquid inlet and a liquid outlet, wherein the liquid inlet and the liquid outlet are located on the same side of the bottom plate.

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