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 to 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 article relates to a battery module for use in a container-type energy storage system, which is composed of aluminum-cased cells with poles at both ends. After an energy storage battery module is installed in a container, a relatively large portion of the high-voltage electrical connection structure and low-voltage signal connection structure are exposed, posing safety risks and creating an unsightly appearance. Furthermore, typical battery modules use an integrated structure, meaning that electrical components are directly attached to the battery unit, resulting in a relatively low level of integration, complicated installation, and disadvantages for rapid assembly, as well as a relatively low level of safety and the need for individual component replacement. 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, has high safety, allows for easy individual replacement of modules, is easy to process, and reduces 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, wherein the fixing frame is removably installed on one end of the battery unit, the electrical integration unit is removably fitted into the fixing frame, and the surface panel is removably installed 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 on 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 being attached to the insulating frame by an engaging member, and the control unit being fitted into the insulating frame on the side 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] Furthermore, 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 the 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 the front end of the battery housing, and the battery set is installed at a distance from at least a portion of the 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 an accommodating chamber, and the battery set is installed in the accommodating chamber, and the battery set is installed at a distance from each of the left plate, the right plate, and the cover plate, thereby forming the gas guide gap.

[0015] Furthermore, the air intake port includes a first air intake port, a second air intake port, and a third air intake port, the first air intake port being provided at an end of the left plate away from the fixed frame, the second air intake port being provided at an end of the right plate away from the fixed frame, and the third air intake port 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 port, the second air intake port, and the third air intake port communicate with the gas guide gap.

[0016] Furthermore, a stepped structure is provided on both edge portions of the cover plate, and when the stepped structure abuts against the surface of the battery set, the gas guide gap is divided into a left gas passage, a right gas passage, and an upper gas passage. The left plate is installed at a distance from the surface of the corresponding battery set to form the left gas passage, the right 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 being attached between two adjacent cells, each of the insulating sheets also being attached between two adjacent cells, and the plurality of foams and the plurality of insulating sheets being installed alternately, with the foam or the insulating sheet being installed between each two adjacent cells.

[0018] Furthermore, a contact protrusion is provided on the battery housing, and when the contact protrusion comes into contact with 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. [Effects of the Invention]

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

[0020] In the modular energy storage battery of this embodiment, a fixing frame is removably installed at one end of a battery unit, an electrical integration unit is fitted into the fixing frame, and a surface panel is removably installed on the electrical integration unit. The surface panel, electrical integration unit, and fixing frame are assembled and then removably attached to the end of the battery unit, thereby achieving a modular structure. When replacement or maintenance is required, the fixing frame can be directly removed, which is very convenient. During actual installation, the electrical integration unit is first fitted into the fixing frame, and then the surface panel is attached to form a modular structure, which is then attached to one end of the battery unit, which is very convenient. Furthermore, individual components can be easily replaced, processed, and assembled, and electrical components do not need to be directly attached to the end of the battery unit one by one. This simplifies the end structure of the battery unit and reduces manufacturing costs. Furthermore, by shielding the electrical integration unit with the surface panel, the exposure of many electrical components is avoided, improving safety and 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, makes it easy to replace individual modules, and is easy to process, thereby reducing manufacturing costs. [Brief explanation of the drawings]

[0021] In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings used in the embodiments will be 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] 1 is a schematic diagram showing the overall structure of a modular energy storage battery according to the present application; FIG. [Figure 2] FIG. 1 is a schematic exploded view of a modular energy storage battery according to the present application. [Figure 3]FIG. 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. [Figure 5] FIG. 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 INVENTION

[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, and are 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 merely illustrates selected embodiments of the present application and does not limit the scope of the present application to be protected. All other embodiments that a person skilled in the art can obtain based on the embodiments in the present application without using his or her inventive abilities also fall within the scope of protection 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 and interpretation in other drawings.

[0025] In the description of this application, 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 usual arrangement directions or positional relationships of the invention products, and are merely for the purpose of simply and concisely explaining this application, and do not expressly or imply that the relevant devices or elements necessarily have a specific direction, or are configured or operated in a specific direction, and therefore do not limit this application. Furthermore, terms such as "first," "second," and "third" are merely for the purpose of distinction and description, and do not expressly 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 slightly tilted. For example, "horizontal" means that the orientation of the component is merely more horizontal than "vertical," and does not necessarily require that the component be completely horizontal, but may be slightly tilted.

[0027] In the description of this application, unless otherwise specified, the terms "installation," "mounting," "coupling," and "connection" should be understood in a broad sense. For example, they may refer to a fixed connection, a detachable connection, or an integral connection. They may also refer to a mechanical connection or an electrical connection. They may also refer to a direct connection, an indirect connection via an intermediate, or internal communication between two elements. Those skilled in the art will be able to understand the specific meanings of the above terms in this application according to the specific circumstances.

[0028] As disclosed in the background art, battery modules used in container-type energy storage systems, which are made of aluminum-cased cells with polarized posts at both ends, generate heat during use, resulting in significant battery life reduction due to excessively high temperatures and large temperature differences. Furthermore, battery modules made of aluminum-cased cells with polarized posts at both ends typically have a relatively large power capacity and volume, are similar to automotive power battery packs, do not provide a driving force, and have poor structural stability. After energy storage battery modules are installed in containers, the high-voltage electrical connection structures and low-voltage signal connection structures are generally exposed to a large extent, posing safety risks and creating an untidy appearance. Furthermore, typical battery modules employ an integrated structure, i.e., electrical components are directly attached to the battery units, resulting in a relatively low level of integration, complicated installation, disadvantages to rapid assembly, relatively low safety, and individual component replacement. Furthermore, the battery sets in typical battery modules are directly stacked, which is prone to rapid heat propagation in the event of thermal runaway, potentially compromising the safety of the module during thermal runaway.

[0029] 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 will be 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, allows for easy individual replacement of modules, is easy to process, reduces manufacturing costs, has good structural stability and heat dissipation performance, has a heat propagation blocking design, and can ensure the safety of the module in the event of thermal runaway.

[0031] The modular energy storage battery 100 according to this embodiment includes a battery unit 110, a fixing frame 130, an electrical integration unit, a surface panel 170, and a fan 152. The fixing frame 130 is removably installed at one end of the battery unit 110, the electrical integration unit 150 is removably fitted into the fixing 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 from 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 applied to 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 components. The surface panel 170, the electrical integrated unit 150, and the fixing frame 130 are assembled and then removably attached to the end of the battery unit 110, thereby achieving a modular structure. For replacement or maintenance, the fixing frame 130 can be directly removed, which is convenient. In actual installation, the electrical integrated unit 150 is first mounted so that it fits into the fixing frame 130, and then the surface panel 170 is attached to form a modular structure, which is then attached to one end of the battery unit 110, which is very convenient. This also facilitates the replacement of individual components, and facilitates processing and assembly. It avoids the need to directly attach the electrical components 153 to the end of the battery unit 110 one by one, thereby simplifying the end structure of the battery unit 110 and reducing manufacturing costs. Furthermore, by shielding the electrical integrated unit 150 with the surface panel 170, it is possible to avoid exposing many electrical structures, thereby improving safety reliability.

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

[0035] As shown in FIGS. 3 and 4 , the electrical integrated unit 150 includes an insulating frame 151 and electrical components 153. A receiving groove is formed through the insulating frame 151. The fan 152 is disposed in the receiving groove and corresponds to the end face of the battery unit 110, providing air cooling for the battery unit 110. The electrical components 153 are integrated into the insulating frame 151 and electrically connected to the battery unit 110. Specifically, the insulating frame 151 is a mounting area for the electrical components 153. During actual installation, the electrical components 153, the fan 152, and the insulating frame 151 are mounted integrally within the fixing frame 130 in a modular structure. The sheet metal structure of the fixing frame 130 effectively protects the electrical integrated unit 150 and prevents damage due to dropping. The insulating frame 151 is made of plastic, which provides insulation and fixation for the electrical components 153. The fan 152 is fixed to the insulating frame 151 with bolts.

[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 engaging member. The control unit 156 is installed at a distance from the output bus bar 154, fitted into the insulating frame 151 on the 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, covering the control unit 156 and removably connected to the insulating frame 151. The grounding assembly 155 connects the ground portion of the control unit 156 to the fixing frame 130. The output bus bar 154 may be a high-voltage output bus bar 154 that is attached to the insulating frame 151 by an engaging member and exposed to achieve an output function. The control unit 156 is fixed to the insulating frame 151 with bolts, and the safety cover plate 157 is configured to mainly 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 ground 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 with bolts and connected to an external fire extinguishing pipe, thereby realizing the fire extinguishing function by jetting fire extinguishing agent in a timely manner in the event of thermal runaway.

[0038] In this embodiment, a surface panel 170 is attached to the insulating frame 151 to shield the electrical components 153, and is detachably connected to the insulating frame 151. The surface panel 170 is provided with exhaust holes 171 that correspond to the fans 152. Specifically, the exhaust holes 171 correspond to the fans 152 and are distributed in a grid pattern, allowing the fans 152 to extract gas from the battery unit 110 and exhaust the gas through the exhaust holes 171 to achieve air-cooled heat dissipation. The surface panel 170 is made of plastic and is fixed to the insulating frame 151 with bolts or engaging members, serving as protection and decoration.

[0039] As shown in Figures 5 to 7, the battery unit 110 includes a battery set 111 and a battery housing. The battery set is housed within the battery housing and is spaced apart from at least a portion 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 side plate 113, a right side 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 fixing frame 130 is connected to the front end plate 112, and the fan 152 is correspondingly installed to the front end plate 112. 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 rear end plate 119. The left and right plates 113, 114 are respectively installed on the left and right sides of the battery set 111 and are installed adjacent to the front and rear end plates 112, 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 and rear end plates 112, 119, left and right plates 113, 114, cover plate 115, and bottom plate 116 form an accommodation chamber that accommodates the battery set 111. The battery set 111 is installed spaced apart from the left and right plates 113, 114, and cover plate 115, forming gas guide gaps.

[0041] In this embodiment, a front end plate 112 and a rear end plate 119 are installed at both ends of the battery assembly 111, and the front end plate 112 and the rear end plate 119 are made of extruded aluminum or cast aluminum. After the battery assembly 111, front end plate 112, and rear end plate 119 are placed and positioned at a workstation, a pressing machine presses the front end plate 112 and the rear end plate 119 together, which apply a biasing force to the battery assembly 111 to compress it to a predetermined size. After the front end plate 112, rear end plate 119, and battery assembly 111 have reached the predetermined size due to the biasing force, the bottom plate 116 is attached. Because the bottom plate 116 has bent portions for fastening to the front end plate 112 and the rear end plate 119 with bolts, conventional laser welding is unnecessary, saving costs and labor hours associated with laser welding, and the structure is stronger and more stable. After the bottom plate 116 is attached, the cover plate 115 is attached. Because the cover plate 115 has bent portions for fastening to the front end plate 112 and the rear end plate 119 with bolts, conventional laser welding is unnecessary, saving costs and labor hours associated with laser welding, and the structure is stronger and more stable. Next, the left plate 113 and the right plate 114 are attached, and the left plate 113 and the right plate 114 are fastened to the cover plate 115 and the bottom plate 116, respectively, with bolts.

[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 as an independent component with other types of fixing frame 130, electrical integration unit 150, and surface panel 170 to form the modular energy storage battery 100 of this embodiment with a certain degree of common design elements and flexibility, thereby improving applicability.

[0043] In this embodiment, the air intake ports include a first air intake port 1131, a second air intake port 1141, and a third air intake port 1151. The first air intake port 1131 is provided at an end of the left side plate 113 away from the fixed frame 130, the second air intake port 1141 is provided at an end of the right side plate 114 away from the fixed frame 130, and the third air intake port 1151 is provided at an end of the cover plate 115 away from the fixed frame 130. Exhaust ports communicating with the accommodation chamber are formed on both the upper and lower sides of the front end plate 112, and the exhaust ports are provided corresponding to the fan 152, and the first air intake port 1131, the second air intake port 1141, and the third air 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 plate 113, the second air intake port 1141 being located near the tail of the right plate 114, and the third air intake port 1151 being located near the tail of the cover plate 115.

[0044] In this embodiment, step structures 117 are provided on both edge portions of the cover plate 115, and the step structures 117 abut against the surface of the battery set 111 to divide the storage 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, with the first air intake 1131 communicating with the left gas passage 1133, the second air intake 1141 communicating with the right gas passage 1143, and the third air intake 1151 communicating with the upper gas passage 1153. Specifically, the staircase structure 117 extends in the front-to-rear direction. Inside the battery unit 110, the staircase structure 117 on the cover plate 115 forms a gap area between the remaining area of ​​the cover plate 115 and the surface of the battery set 111. This area is the upper gas passage, and gas enters through the third air intake 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 edges 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. This allows the flow rate and flow speed in each gas passage to be optimized, thereby achieving an optimal air-cooling design for the battery module.

[0045] In this embodiment, a contact protrusion 118 is provided on the bottom plate 116, and when the contact protrusion 118 contacts 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 together 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. 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. A heat conductive structural adhesive is filled into this gap, and after curing, a heat conductive adhesive layer is formed to bond the battery set 111 and the bottom plate 116. The heat conductive structural adhesive has good thermal conductivity, which can uniformly distribute the temperature of the cells 1115 in the battery set 111 and conduct the heat generated in the cells 1115 to the bottom plate 116. The bottom plate 116 is made of aluminum, which has good thermal conductivity, which can effectively reduce the temperature of the battery set 111 and extend the service life of the cells 1115.

[0046] In another preferred embodiment of the present application, instead of the contact protrusions 118, other materials such as rubber pads may be used to attach 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, with each foam 1111 attached between two adjacent cells 1115, and each insulating sheet 1113 also attached between two adjacent cells 1115, with the plurality of foams 1111 and the plurality of insulating sheets 1113 arranged alternately, with the foams 1111 or the insulating sheets 1113 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., the larger side) of the first cell 1115 and the large surface of the second cell 1115, and an insulating sheet 1113 is attached between the large surface of the second cell 1115 and the large surface of the third cell 1115, and the cells are assembled in this manner, with the foam 1111 and the insulating sheet 1113 being alternately used between the large surfaces of the cells 1115. The foam 1111 is placed between the large surfaces of the cells 1115, and the foam 1111 effectively absorbs expansion during the life cycle of the cells 1115, and the repulsive force of the foam 1111 serves as a biasing force during assembly of the battery unit 110, contributing to the structural stability of the battery unit 110. An insulating sheet 1113 is installed between the large surfaces of the cells 1115, and the insulating sheet 1113 effectively blocks heat transmission between the cells 1115 that have experienced thermal runaway and the normal cells 1115, preventing heat transmission and ensuring the safety of the battery unit 110.

[0048] In another preferred embodiment, one sheet of foam 1111 is attached between two or more cells 1115, and the insulating sheet 1113 and the foam 1111 are still alternately used. 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 so as to fit within the fixing frame 130, and 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 achieving a modular structure. When replacement or maintenance is required, the fixing frame 130 can be directly removed, which is very convenient. During actual installation, the electrical integration unit 150 is first mounted so as to fit within the fixing frame 130, and the surface panel 170 is then attached to form a modular structure, which is then attached to one end of the battery unit 110, which is very convenient. Furthermore, individual components can be easily replaced, and processing and assembly are easy. This avoids the need to directly attach the electrical components 153 to the end face of the battery unit 110 one by one, thereby simplifying the end face structure of the battery unit 110 and reducing manufacturing costs. Also, by shielding the electrical integrated unit 150 with the front panel 170, the electrical structure is not exposed, improving safety and reliability. Furthermore, the fan 152 is designed for air cooling, and the gas passage has been improved, resulting in good heat dissipation and allowing heat generated in the battery unit 110 to be quickly removed. Furthermore, the structure of the battery set 111 is designed to have good biasing force and heat transmission prevention capabilities, ensuring 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 to 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 cells 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 Third 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 Integrated Unit 151 Insulation Frame 152 fans 153 Electrical Components 154 Output busbar 155 Grounding Assembly 156 Control Unit 157 Safety Cover Plate 158 Firefighting Injection Head 170 Surface Panel 171 Exhaust vent

Claims

1. The battery pack (110) comprises a battery unit (110), a fixing frame (130), an electrical integration unit (150), and a surface panel (170), wherein the fixing frame (130) is removably installed at one end of the battery unit (110), the electrical integration unit (150) is removably fitted into the fixing frame (130), and the surface panel (170) is removably installed on the electrical integration unit (150); The electrical integrated unit (150) includes an insulating frame (151) and electrical components (153), the insulating frame (151) is removably fitted into the fixing frame (130), and the electrical components (153) are integrated and installed on the insulating frame (151) and electrically connected to the battery unit (110); 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 apart from the battery unit (110) and is electrically connected to the battery unit (110). A modular energy storage battery characterized by:

2. 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 be detachably connected to the insulating frame (151) to protect the control unit (156).

10. The modular energy storage battery of claim 1.

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

10. The modular energy storage battery of claim 1.

4. 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).

10. The modular energy storage battery of claim 1.

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

10. The modular energy storage battery of claim 1.

6. 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 the front end of the battery housing, and the battery set (111) is installed spaced apart from at least a part of the inner wall of the battery housing, thereby forming the gas guide gap between the battery housing and the battery set (111).

6. The modular energy storage battery of claim 5.

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

7. The modular energy storage battery of claim 6.

8. 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). 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) form a storage chamber. 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.

8. The modular energy storage battery of claim 7.

9. 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 , provided at an end of the cover plate (115) away from the fixed frame (130), 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.

9. The modular energy storage battery of claim 8.

10. The cover plate (115) has a stepped structure (117) on both edges thereof, and the stepped structure (117) abuts against the surface of the battery set (111), dividing the gas guide gap 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 right plate (114) is installed spaced apart from the surface of the corresponding battery set (111) to form the right gas passage, and the cover plate (115) is installed spaced apart from the surface of the corresponding battery set (111) to form the upper gas passage.

9. The modular energy storage battery of claim 8.

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

7. The modular energy storage battery of claim 6.

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

7. The modular energy storage battery of claim 6.

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