Modular Energy Storage Battery

Abstract

This application provides a modular energy storage battery, which belongs to the technical field of batteries. The modular energy storage battery pack includes a battery unit, a fixed frame, an electrical integration unit, and a surface panel, the fixed frame is removably installed at one end of the battery unit, the electrical integration unit is removably fitted into the fixed frame, and the surface panel is removably installed on the electrical integration unit. In actual installation, the electrical integration unit is first installed so that it is fitted into the fixed frame, and the surface panel is then installed. Individual parts can be easily replaced, processed, and assembled, which can further simplify the end surface structure of the battery unit and reduce manufacturing costs. In addition, the electrical integration unit is shielded by the surface panel, which can avoid many electrical structures from being exposed, and can improve safety reliability.

Description

[Technical field]

[0001] This application is in the field of battery technology, and specifically relates to modular energy storage batteries. (CROSS REFERENCE TO RELATED APPLICATIONS) This application claims priority based on a Chinese application filed with the State Intellectual Property Office of the People's Republic of China on October 17, 2022, bearing application number 202211269232.8 and entitled "Modular Energy Storage Battery", the entire contents of which are incorporated herein by reference. [Background technology]

[0002] This invention relates to a battery module for a container-type energy storage system, which is composed of aluminum-cased cells with poles at both ends. After the energy storage battery module is installed in the container, the high-voltage electrical connection structure and the low-voltage signal connection structure are generally exposed to a large extent, which poses safety risks and poor appearance. Moreover, the general battery module adopts an integrated structure, that is, the electrical components are directly installed in the battery unit, which results in a relatively low integration degree, complicated installation, disadvantages for rapid assembly, relatively low safety, and disadvantages for individual replacement of each component. Summary of the Invention [Problem to be solved by the invention]

[0003] The present application aims to provide a modular energy storage battery that adopts a modular structure, is easy to assemble while being highly safe, allows easy individual replacement of modules, is easy to process, and can reduce manufacturing costs. [Means for solving the problem]

[0004] An embodiment of the present application is realized as follows.

[0005] The modular energy storage battery comprises a battery unit, a fixing frame, an electrical integration unit, and a surface panel, the fixing frame being removably mounted on one end of the battery unit, the electrical integration unit being removably fitted into the fixing frame, and the surface panel being removably mounted on the electrical integration unit.

[0006] Furthermore, the electrical integrated unit includes an insulating frame and electrical components, the insulating frame being removably fitted into the fixed frame, and the electrical components being integrated and installed in the insulating frame and electrically connected to the battery unit.

[0007] Furthermore, the electrical components include an output bus bar and a control unit that are installed at a distance from each other, the output bus bar is attached to the insulating frame by an engaging member, and the control unit is fitted into the insulating frame on a side thereof that is spaced from the battery unit and is electrically connected to the battery unit.

[0008] Furthermore, a safety cover plate is further installed on the insulating frame, and the safety cover plate is configured to cover the control unit and be detachably connected to the insulating frame to protect the control unit.

[0009] Furthermore, the electrical components further include a grounding assembly, which is installed on the insulating frame and configured to connect a ground portion of the control unit and the fixed frame.

[0010] In addition, a fire-fighting jet head is further installed on the insulating frame, and the fire-fighting jet head penetrates the insulating frame and corresponds to an end surface of the battery unit.

[0011] Furthermore, the modular energy storage battery further includes a fan, and a gas guide gap is further provided in the electrical integration unit, the fan is installed in the electrical integration unit, corresponds to the gas guide gap, and is configured to extract gas in the gas guide gap.

[0012] Furthermore, the battery unit includes a battery set and a battery housing, the battery set is accommodated in the battery housing, the fixing frame is installed at a front end of the battery housing, and the battery set is installed at a distance from at least a portion of an inner wall of the battery housing, thereby forming the gas guide gap between the battery housing and the battery set.

[0013] Furthermore, an air intake is provided at the rear end of the battery housing, and the air intake communicates with the gas guide gap.

[0014] Furthermore, the battery housing includes a front end plate, a rear end plate, a left plate, a right plate, a cover plate, and a bottom plate, and the front end plate, rear end plate, left plate, right plate, cover plate, and bottom plate form a storage chamber, the battery set is installed in the storage chamber, and the battery set is installed spaced apart from each of the left plate, the right plate, and the cover plate, thereby forming the gas guide gap.

[0015] Further, the air intake includes a first air intake, a second air intake, and a third air intake, the first air intake being provided at an end of the left side plate away from the fixed frame, the second air intake being provided at an end of the right side plate away from the fixed frame, and the third air intake being provided at an end of the cover plate away from the fixed frame, and exhaust ports communicating with the gas guide gap are formed on both the upper and lower sides of the front end plate, the exhaust ports being provided corresponding to the fan, and the first air intake, the second air intake, and the third air intake are connected to the gas guide gap.

[0016] Furthermore, a stepped structure is provided on both side edges of the cover plate, and the stepped structure abuts against the surface of the battery set to divide the gas guide gap into a left gas passage, a right gas passage and an upper gas passage, the left side plate is installed at a distance from the surface of the corresponding battery set to form the left gas passage, the right side plate is installed at a distance from the surface of the corresponding battery set to form the right gas passage, and the cover plate is installed at a distance from the surface of the corresponding battery set to form the upper gas passage.

[0017] Furthermore, the battery set includes a plurality of foams, a plurality of insulating sheets, and a plurality of cells that are stacked and installed, each of the foams is attached between two adjacent cells, each of the insulating sheets is also attached between two adjacent cells, and the plurality of foams and the plurality of insulating sheets are installed alternately, and the foam or the insulating sheet is installed between each two adjacent cells.

[0018] Furthermore, a contact protrusion is provided on the battery housing, and when the contact protrusion abuts against the surface of the battery set, a gap is formed between the battery set and the surface of the battery housing, and a thermally conductive adhesive layer is filled into the gap, and the thermally conductive adhesive layer bonds the battery set and the battery housing and conducts heat generated in the battery set to the battery housing. Effect of the Invention

[0019] The embodiments of the present application have the following beneficial effects:

[0020] In the modular energy storage battery according to the present embodiment, the fixing frame is removably installed at one end of the battery unit, the electrical integration unit is fitted into the fixing frame, and the surface panel is removably installed on the electrical integration unit. The surface panel, the electrical integration unit and the fixing frame are assembled and then removably attached to the end of the battery unit, thereby realizing a modular structure. When replacement or maintenance is required, the fixing frame can be directly removed, which is very convenient. In actual installation, the electrical integration unit is first fitted into the fixing frame, the surface panel is attached to form a modular structure, and the modular structure is then attached to one end of the battery unit, which is very convenient. In addition, it is easy to replace individual parts, and it is easy to process and assemble. It is possible to avoid directly attaching electrical parts to the end face of the battery unit in sequence, which can further simplify the end face structure of the battery unit and reduce the manufacturing cost. In addition, by blocking the electrical integration unit with the surface panel, it is possible to avoid exposing many electrical structures, which can improve the safety reliability. Compared with the prior art, the modular energy storage battery of the present application adopts a modular structure, which is easy to assemble and has high safety, easy to replace modules individually, and easy to process, reducing manufacturing costs. [Brief description of the drawings]

[0021] In order to more clearly describe the technical solutions of the embodiments of the present application, the drawings used in the embodiments are briefly described below. The drawings described are only for illustrating some embodiments of the present application, and are not intended to limit the scope. Those skilled in the art can obtain other related drawings based on these drawings without using inventive abilities. [Figure 1] FIG. 1 is a schematic diagram showing the overall structure of a modular energy storage battery according to the present application. [Diagram 2] FIG. 1 is a schematic exploded view of a modular energy storage battery according to the present application. [Diagram 3]3 is a schematic diagram showing the overall structure of the electrical integrated unit in FIG. 2. [Figure 4] FIG. 3 is a schematic exploded view of the electrical integrated unit in FIG. 2. [Diagram 5] 3 is a schematic diagram showing the overall structure of the battery unit in FIG. 2. [Figure 6] FIG. 3 is a schematic exploded view of the battery unit in FIG. 2. [Figure 7] 3 is a cross-sectional view of the internal structure of the battery unit in FIG. 2. [Figure 8] FIG. 7 is a schematic exploded view of the battery set in FIG. 6. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings used in the embodiments of the present application. The described embodiments are only some of the embodiments of the present application, but not all of the embodiments. The components in the embodiments of the present application shown in the drawings can be arranged and designed in various arrangement ways.

[0023] Therefore, the following detailed description of the embodiments of the present application shown in the drawings only illustrates selected embodiments of the present application, and does not limit the scope of the present application to be protected. Based on the embodiments in the present application, all other embodiments obtained by a person skilled in the art without using inventive ability also belong to the protection scope of the present application.

[0024] Like reference numerals refer to like elements in the drawings, so that a definition in one drawing does not require further definition or interpretation in the other drawings.

[0025] In the description of this application, the directions or positional relationships expressed by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the drawings or are the normal arrangement directions or positional relationships of the invention products, and are merely for the purpose of simply and concisely describing this application, and do not necessarily express or imply that the relevant devices or elements have a specific direction, or are constructed or operated in a specific direction, and therefore do not limit this application. In addition, terms such as "first", "second", and "third" are merely for the purpose of distinction and description, and do not express or imply relative importance.

[0026] Additionally, terms such as "horizontal" and "vertical" do not require that a component be placed absolutely horizontally or vertically, but may be tilted slightly. For example, "horizontal" may mean that the orientation of the component is merely more horizontal than "vertical," and may be tilted slightly, rather than necessarily being completely horizontal.

[0027] In the description of this application, unless otherwise specified, the terms "installation", "attachment", "coupling" and "connection" should be understood in a broad sense. For example, they may be fixedly connected, detachably connected, or integrally connected. They may be mechanically connected or electrically connected. They may also be directly connected, indirectly connected via an intermediate object, or the insides of two elements may communicate with each other. Those skilled in the art can understand the specific meanings of the above terms in this application according to the specific circumstances.

[0028] As disclosed in the background art, a battery module made of aluminum case cells with poles at both ends, which is used in a container-type energy storage system, generates heat during use, and the battery life is relatively greatly impaired due to excessively high temperatures and relatively large temperature differences. The battery module made of aluminum case cells with poles at both ends usually has a relatively large power capacity and volume, is similar to an automobile power battery pack, does not provide a biasing force, and has low structural stability. After the energy storage battery module is installed in a container, the high-voltage electrical connection structure and the low-voltage signal connection structure are generally exposed to a relatively large extent, which poses safety risks and makes the appearance untidy. The general battery module adopts an integrated structure, that is, the electrical components are directly installed in the battery unit, which results in a relatively low integration degree, a complicated installation, disadvantages for rapid assembly, a relatively low safety, and disadvantages for individual replacement of each component. The battery set in the general battery module uses a direct stacking form, which is prone to relatively fast heat propagation when thermal runaway occurs, and the safety of the module is impaired during thermal runaway.

[0029] In order to solve the above problems, the present application provides a new modular energy storage battery, which adopts a modular structure, is easy to assemble, and has high safety. The modular energy storage battery is described in detail below.

[0030] [First Example] As shown in Figures 1 and 2, this embodiment provides a modular energy storage battery 100. The modular energy storage battery 100 adopts a modular structure, is easy to assemble and has high safety, is easy to replace individual modules, is easy to process, can reduce manufacturing costs, has good structural stability and heat dissipation performance, has a heat propagation blocking design, and can ensure the safety of the module during thermal runaway.

[0031] The modular energy storage battery 100 according to this embodiment includes a battery unit 110, a fixed frame 130, an electrical integration unit, a surface panel 170, and a fan 152. The fixed frame 130 is removably installed at one end of the battery unit 110, the electrical integration unit 150 is removably fitted into the fixed frame 130, and the surface panel 170 is removably installed on the electrical integration unit 150. A gas guide gap is further provided in the electrical integration unit 150, and the fan 152 is installed in the electrical integration unit 150, corresponds to the gas guide gap, and is configured to extract gas in the gas guide gap.

[0032] In this embodiment, the modular energy storage battery 100 is used in a container-type energy storage system, that is, the modular energy storage battery 100 is installed in a container by being fixed in position by a fixing frame 130, and after the installation is completed, the exposed part has a surface panel 170, and the appearance design can be performed on the surface panel 170, so that the entire system is safe and neat.

[0033] In this embodiment, the electrical integrated unit 150 has a modular structure, integrating various electrical elements, and the surface panel 170, the electrical integrated unit 150, and the fixing frame 130 are integrated and assembled, and then detachably attached to the end of the battery unit 110, thereby realizing a modular structure. When replacement or maintenance is required, the fixing frame 130 can be directly removed, which is convenient. In actual installation, the electrical integrated unit 150 is first installed so as to be fitted into the fixing frame 130, the surface panel 170 is attached to form a modular structure, and the modular structure is then attached to one end of the battery unit 110, which is very convenient. In addition, it is easy to replace individual components, and it is easy to process and assemble, and it is possible to avoid directly attaching the electrical components 153 to the end of the battery unit 110 one by one, which simplifies the end structure of the battery unit 110 and reduces the manufacturing cost. In addition, by covering the electrical integrated unit 150 with the surface panel 170, it is possible to prevent many electrical structures from being exposed, thereby improving safety and reliability.

[0034] In this embodiment, the fixing frame 130 is a sheet metal structure, and the fixing frame 130 is fixed to the front end of the battery unit 110 by bolts. The mounting members 131 are installed on the fixing frame 130. When the modular energy storage battery 100 is mounted on the frame in the container, the battery module can be fixed by fastening the mounting members 131 to the frame with bolts.

[0035] As shown in FIG. 3 and FIG. 4, the electric integrated unit 150 includes an insulating frame 151 and an electric component 153. The insulating frame 151 is provided with a receiving groove penetrating therethrough, and the fan 152 is disposed in the receiving groove and corresponds to an end face of the battery unit 110, and configured to perform air cooling for the battery unit 110. The electric component 153 is integrated and installed in the insulating frame 151 and electrically connected to the battery unit 110. Specifically, the insulating frame 151 is an installation area for the electric component 153. In actual installation, the electric component 153, the fan 152, and the insulating frame 151 are integrally installed in the fixing frame 130 in a modular structure, and the sheet metal structure of the fixing frame 130 can effectively protect the electric integrated unit 150 and prevent it from being damaged by dropping. The insulating frame 151 is made of a plastic material, which serves to insulate and fix the electric component 153. The fan 152 is fixed to the insulating frame 151 by a bolt.

[0036] In this embodiment, the electrical components 153 include an output bus bar 154, a grounding assembly 155, and a control unit 156. The output bus bar 154 is attached to the insulating frame 151 by an engagement member. The control unit 156 is installed at a distance from the output bus bar 154, fitted into the insulating frame 151 on a side thereof away from the battery unit 110, and electrically connected to the battery unit 110. A safety cover plate 157 is installed on the insulating frame 151, the safety cover plate 157 is provided to cover the control unit 156, and is detachably connected to the insulating frame 151, and the grounding assembly 155 connects the ground portion of the control unit 156 to the fixed frame 130. The output bus bar 154 may be a high voltage output bus bar 154, which is attached to the insulating frame 151 by an engagement member and exposed to achieve an output function. The control unit 156 is fixed to the insulating frame 151 by bolts, and the safety cover plate 157 is configured mainly to shield and protect the control unit 156 and prevent accidental touching. The grounding assembly 155 connects the grounding part of the control unit 156 to the fixing frame 130, thereby forming an effective grounding circuit.

[0037] In this embodiment, a fire extinguishing agent jet head 158 is further installed on the insulating frame 151, and the fire extinguishing agent jet head 158 penetrates the insulating frame 151 to correspond to the end surface of the battery unit 110. Specifically, the fire extinguishing agent jet head 158 is fixed to the insulating frame 151 by a bolt and connected to an external fire extinguishing pipe, so as to jet extinguishing agent in a timely manner when thermal runaway occurs, thereby realizing the fire extinguishing function.

[0038] In this embodiment, the surface panel 170 is covered by the insulating frame 151 to shield the electric components 153, the surface panel 170 is detachably connected to the insulating frame 151, and the surface panel 170 is provided with exhaust holes 171, which are installed corresponding to the fan 152. Specifically, the exhaust holes 171 correspond to the fan 152 and are distributed in a lattice pattern, so that the fan 152 can extract gas in the battery unit 110 and exhaust the gas through the exhaust holes 171 to realize air-cooling heat dissipation. The surface panel 170 is made of a plastic material and is fixed to the insulating frame 151 by bolts or engaging members, and serves the roles of protection and decoration.

[0039] 5 to 7, the battery unit 110 includes a battery set 111 and a battery housing. The battery set is accommodated in the battery housing and is spaced apart from at least a part of the inner wall of the battery housing, thereby forming a gas guide gap. A fixing frame 130 is installed at the front end of the battery housing, and an air intake is provided at the rear end of the battery housing, with the air intake communicating with the gas guide gap.

[0040] The battery housing includes a front end plate 112, a rear end plate 119, a left plate 113, a right plate 114, a cover plate 115, and a bottom plate 116. The front end plate 112 and the rear end plate 119 are respectively installed at both ends of the battery set 111 and configured to apply a biasing force to the battery set 111. The fixed frame 130 and the front end plate 112 are connected, and the fan 152 and the front end plate 112 are correspondingly installed. The bottom plate 116 is installed below the battery set 111, and the cover plate 115 is installed above the battery set 111 and connected to the front end plate 112 and the rear end plate 119. The left plate 113 and the right plate 114 are respectively installed on the left and right sides of the battery set 111 and installed adjacent to the front end plate 112 and the rear end plate 119, the left plate 113 is connected to the cover plate 115 and the bottom plate 116, and the right plate 114 is connected to the cover plate 115 and the bottom plate 116. The front end plate 112, the rear end plate 119, the left plate 113, the right plate 114, the cover plate 115, and the bottom plate 116 form an accommodation chamber that accommodates the battery set 111, and the battery set 111 is installed spaced apart from each of the left plate 113, the right plate 114, and the cover plate 115 to form a gas guide gap.

[0041] In this embodiment, a front end plate 112 and a rear end plate 119 are respectively installed at both ends of the battery set 111, and the front end plate 112 and the rear end plate 119 are processed by aluminum extrusion or aluminum casting. After the battery set 111, the front end plate 112 and the rear end plate 119 are arranged and positioned at the work station, the front end plate 112 and the rear end plate 119 are pressed by a pressing machine, and the front end plate 112 and the rear end plate 119 apply a biasing force to the battery set 111 to press the battery set 111 to a predetermined size. After the front end plate 112, the rear end plate 119 and the battery set 111 reach a predetermined size due to the biasing force, the bottom plate 116 is attached. The bottom plate 116 is provided with a fixing bent portion for fixing the front end plate 112 and the rear end plate 119 with bolts, so that conventional laser welding is unnecessary, and the cost and labor required for laser welding are saved, and the structure is stronger and more stable. After the bottom plate 116 is attached, the cover plate 115 is attached. The cover plate 115 is provided with a fixing bent portion for fixing the front end plate 112 and the rear end plate 119 with bolts, so that conventional laser welding is unnecessary, and the cost and labor required for laser welding are saved, and the structure is stronger and more stable. Then, the left plate 113 and the right plate 114 are attached, and the left plate 113 and the right plate 114 are fixed to the cover plate 115 and the bottom plate 116 with bolts, respectively.

[0042] Here, the main structure of the modular energy storage battery 100 is the battery unit 110, and the battery unit 110 can be combined with other types of fixed frame 130, electrical integration unit 150 and surface panel 170 as an independent component unit to form the modular energy storage battery 100 of this embodiment with a certain degree of common design elements and flexibility, and improve applicability.

[0043] In this embodiment, the intake port includes a first intake port 1131, a second intake port 1141, and a third intake port 1151. The first intake port 1131 is provided at an end of the left side plate 113 remote from the fixed frame 130, the second intake port 1141 is provided at an end of the right side plate 114 remote from the fixed frame 130, the third intake port 1151 is provided at an end of the cover plate 115 remote from the fixed frame 130, exhaust ports communicating with the storage chamber are formed on both the upper and lower sides of the front end plate 112, the exhaust ports are provided corresponding to the fan 152, and the first intake port 1131, the second intake port 1141, and the third intake port 1151 communicate with the gas guide gap. Specifically, the first air intake port 1131, the second air intake port 1141 and the third air intake port 1151 all have a honeycomb-shaped through-hole structure, with the first air intake port 1131 being located near the tail of the left side plate 113, the second air intake port 1141 being located near the tail of the right side plate 114, and the third air intake port 1151 being located near the tail of the cover plate 115.

[0044] In this embodiment, a step structure 117 is provided on both edge portions of the cover plate 115, and the step structure 117 abuts against the surface of the battery set 111 to divide the accommodating chamber into a left gas passage 1133, a right gas passage 1143, and an upper gas passage 1153. The left plate 113 is installed spaced apart from the surface of the corresponding battery set 111 to form the left gas passage 1133, the first air intake 1131 communicates with the left gas passage 1133, the second air intake 1141 communicates with the right gas passage 1143, and the third air intake 1151 communicates with the upper gas passage 1153. Specifically, the staircase structure 117 extends along the front-rear direction, and inside the battery unit 110, the staircase structure 117 on the cover plate 115 forms a gap area between the other area of ​​the cover plate 115 and the surface of the battery set 111, which is the upper gas passage, and gas enters through the third air inlet 1151. The safety gap area between the left plate 113 and the battery set 111 is the left gas passage 1133, and the safety gap area between the right plate 114 and the battery set 111 is the right gas passage 1143. By designing the staircase structure 117 on both sides of the edge of the cover plate 115, the upper gas passage 1153, the left gas passage 1133, and the right gas passage 1143 are independent of each other and do not interfere with each other, so that the flow rate and flow speed in each gas passage can be optimized, and the optimal air-cooling design scheme can be adopted for the battery module.

[0045] In this embodiment, an abutment protrusion 118 is provided on the bottom plate 116, and when the abutment protrusion 118 abuts against the surface of the battery set 111, a gap is formed between the battery set 111 and the surface of the bottom plate 116. A thermally conductive adhesive layer is filled into the gap, and the thermally conductive adhesive layer bonds the battery set 111 and the bottom plate 116 and conducts heat generated in the battery set 111 to the bottom plate 116. Specifically, the bottom plate 116 is provided with two contact protrusions 118, and when the contact protrusions 118 and the surface of the cell 1115 are in close contact with each other, a gap is formed between the surface of the cell 1115 and the bottom plate 116, and a heat conductive structural adhesive is filled into the gap, and a heat conductive adhesive layer is formed after curing, and the battery set 111 and the bottom plate 116 are bonded by the heat conductive structural adhesive, which has good thermal conductivity and can make the temperature of the cell 1115 in the battery set 111 uniform and conduct the heat generated in the cell 1115 to the bottom plate 116. The bottom plate 116 is made of aluminum material with good thermal conductivity, which can effectively reduce the temperature of the battery set 111 and extend the service life of the cell 1115.

[0046] In another preferred embodiment of the present application, the contact protrusions 118 may be replaced with other materials, such as rubber pads, which are attached to the bottom plate 116 .

[0047] 8, the battery set 111 includes a plurality of foams 1111, a plurality of insulating sheets 1113, and a plurality of cells 1115 arranged in a stacked manner, each foam 1111 is attached between two adjacent cells 1115, each insulating sheet 1113 is also attached between two adjacent cells 1115, and the foams 1111 and the insulating sheets 1113 are alternately arranged, with the foams 1111 or the insulating sheets 1113 being arranged between each pair of adjacent cells 1115. Specifically, the battery set 111 is composed of the cells 1115, the foams 1111, and the insulating sheets 1113, and will be described here using an example of three cells 1115. In a specific implementation, foam 1111 is attached between the large surface (i.e., a relatively large side surface) of the first cell 1115 and the large surface of the second cell 1115, and heat insulating sheet 1113 is attached between the large surface of the second cell 1115 and the large surface of the third cell 1115, and assembled in this manner, with foam 1111 and heat insulating sheet 1113 being alternately used between the large surfaces of the cells 1115. By disposing foam 1111 between the large surfaces of the cells 1115, foam 1111 effectively absorbs expansion during the life cycle of the cells 1115, and the repulsive force of foam 1111 serves as a biasing force during assembly of the battery unit 110, thereby contributing to the stability of the structure of the battery unit 110. An insulating sheet 1113 is installed between the large surfaces of the cells 1115, and the insulating sheet 1113 can effectively block heat transmission between the cell 1115 experiencing thermal runaway and the normal cells 1115, prevent heat transmission, and ensure the safety of the battery unit 110.

[0048] In another preferred embodiment, a sheet of foam 1111 is attached between two or more cells 1115, and the insulating sheet 1113 and the foam 1111 are still alternated. Here, the alternating form of the foam 1111 and the insulating sheet 1113 is not specifically limited.

[0049] As described above, this embodiment provides a modular energy storage battery 100. The fixing frame 130 is removably installed at one end of the battery unit 110, the electrical integration unit 150 is mounted to be fitted into the fixing frame 130, the surface panel 170 is removably installed on the electrical integration unit 150, the surface panel 170, the electrical integration unit 150 and the fixing frame 130 are assembled and then removably mounted at the end of the battery unit 110, thereby realizing a modular structure, and when replacement or maintenance is required, the fixing frame 130 can be directly removed, which is very convenient. In actual installation, the electrical integration unit 150 is first mounted to be fitted into the fixing frame 130, the surface panel 170 is attached to form a modular structure, and then the modular structure is attached to one end of the battery unit 110, which is very convenient. In addition, individual parts can be easily replaced, processed, and assembled, and the electrical components 153 can be avoided from being directly attached to the end surface of the battery unit 110 one by one, which simplifies the end surface structure of the battery unit 110 and reduces manufacturing costs. In addition, the electrical integrated unit 150 is shielded by the front panel 170, which prevents many electrical structures from being exposed, and improves safety and reliability. The fan 152 is designed for air cooling, and the gas passage is improved to provide a good heat dissipation effect, so that the heat generated in the battery unit 110 can be quickly removed. The structure of the battery set 111 is designed to have good biasing force and heat propagation prevention ability, which ensures the safety of the battery unit 110.

[0050] The above is only a preferred embodiment of the present application, and does not limit the present application. Those skilled in the art may have various modifications and variations in the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application are within the scope of protection of the present application. [Explanation of symbols]

[0051] 100 Modular Energy Storage Batteries 110 Battery unit 111 Battery set 1111 Form 1113 Heat insulation sheet 1115 Cell 112 Front end plate 113 Left side plate 1131 First air intake 1133 Left gas passage 114 Right side plate 1141 Second intake 1143 Right gas passage 115 Cover Plate 1151 3rd air intake 1153 Upper gas passage 116 Bottom Plate 117 Staircase structure 118 Contact projection 119 Rear end plate 130 Fixed Frame 131 Mounting material 150 Electrical Integration Unit 151 Insulating frame 152 Fans 153 Electrical Parts 154 Output busbar 155 Grounding Assembly 156 Control Unit 157 Safety cover plate 158 Fire Injection Head 170 Surface Panel 171 Exhaust Vent

Claims

1. The battery pack includes a battery unit (110), a fixing frame (130), an electrical integration unit (150), and a surface panel (170), the fixing frame (130) being removably installed at one end of the battery unit (110), the electrical integration unit (150) being removably fitted into the fixing frame (130), and the surface panel (170) being removably installed on the electrical integration unit (150).

1. A modular energy storage battery comprising:

2. The electrical integrated unit (150) includes an insulating frame (151) and electrical components (153), the insulating frame (151) is removably fitted into the fixed frame (130), and the electrical components (153) are integrated and installed on the insulating frame (151) and electrically connected to the battery unit (110).

2. The modular energy storage battery of claim 1.

3. The electrical component (153) includes an output bus bar (154) and a control unit (156) that are spaced apart from each other, the output bus bar (154) is attached to the insulating frame (151) by an engaging member, and the control unit (156) is fitted into the insulating frame (151) on the side spaced away from the battery unit (110) and is electrically connected to the battery unit (110).

3. The modular energy storage battery of claim 2.

4. A safety cover plate (157) is further installed on the insulating frame (151), and the safety cover plate (157) is configured to cover the control unit (156) and to be detachably connected to the insulating frame (151) to protect the control unit (156).

4. The modular energy storage battery of claim 3.

5. The electrical components (153) further include a grounding assembly (155), which is installed on the insulating frame (151) and configured to connect a ground of the control unit (156) to the fixed frame (130).

4. The modular energy storage battery of claim 3.

6. A fire-fighting jet head (158) is further installed on the insulating frame (151), and the fire-fighting jet head (158) penetrates the insulating frame (151) and corresponds to the end surface of the battery unit (110).

3. The modular energy storage battery of claim 2.

7. The modular energy storage battery further includes a fan (152), and a gas guide gap is further provided in the electrical integration unit (150), the fan (152) is installed in the electrical integration unit (150), corresponds to the gas guide gap, and is configured to extract gas in the gas guide gap.

2. The modular energy storage battery of claim 1.

8. The battery unit (110) includes a battery set (111) and a battery housing, the battery set is accommodated in the battery housing, the fixing frame (130) is installed at a front end of the battery housing, and the battery set (111) is installed spaced apart from at least a part of an inner wall of the battery housing, thereby forming the gas guide gap between the battery housing and the battery set (111).

8. The modular energy storage battery of claim 7.

9. An air intake is provided at the rear end of the battery housing, and the air intake communicates with the gas guide gap.

9. The modular energy storage battery of claim 8.

10. The battery housing includes a front end plate (112), a rear end plate, a left plate (113), a right plate (114), a cover plate (115), and a bottom plate (116), and a storage chamber is formed by the front end plate (112), the rear end plate, the left plate (113), the right plate (114), the cover plate (115), and the bottom plate (116). The battery set is installed in the storage chamber, and the battery set (111) is installed spaced apart from each of the left plate (113), the right plate (114), and the cover plate (115), thereby forming the gas guide gap.

10. The modular energy storage battery of claim 9.

11. The air intake includes a first air intake (1131), a second air intake (1141), and a third air intake (1151), the first air intake (1131) being provided at an end of the left plate (113) remote from the fixed frame (130), the second air intake (1141) being provided at an end of the right plate (114) remote from the fixed frame (130), and the third air intake (1151) being , the cover plate (115) is provided at an end remote from the fixed frame (130), and exhaust ports communicating with the gas guide gap are formed on both the upper and lower sides of the front end plate (112), the exhaust ports are provided corresponding to the fan (152), and the first intake port (1131), the second intake port (1141) and the third intake port (1151) communicate with the gas guide gap.

11. The modular energy storage battery of claim 10.

12. A step structure (117) is provided on both edge portions of the cover plate (115), and the step structure (117) abuts against the surface of the battery set (111) to divide the gas guide gap into a left gas passage (1133), a right gas passage (1143), and an upper gas passage (1153). The left side plate (113) is installed at a distance from the surface of the corresponding battery set (111) to form the left gas passage (1133), the right side plate (114) is installed at a distance from the surface of the corresponding battery set (111) to form the right gas passage, and the cover plate (115) is installed at a distance from the surface of the corresponding battery set (111) to form the upper gas passage.

11. The modular energy storage battery of claim 10.

13. The battery set (111) includes a plurality of foams (1111), a plurality of insulating sheets (1113), and a plurality of cells (1115) that are stacked and installed, each of the foams (1111) is attached between two adjacent cells (1115), each of the insulating sheets (1113) is also attached between two adjacent cells (1115), and the plurality of foams (1111) and the plurality of insulating sheets (1113) are installed alternately, and the foams (1111) or the insulating sheets (1113) are installed between each pair of adjacent cells (1115).

9. The modular energy storage battery of claim 8.

14. A contact protrusion (118) is provided on the bottom of the battery housing, and a gap is formed between the battery set (111) and the surface of the battery housing by the contact protrusion (118) contacting the surface of the battery set (111), and a thermally conductive adhesive layer is filled into the gap, and the thermally conductive adhesive layer bonds the battery set (111) and the battery housing and conducts heat generated in the battery set (111) to the battery housing.

9. The modular energy storage battery of claim 8.

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