Energy storage power supply

Abstract

To provide an energy storage power supply capable of solving at least one of such problems that the number and variety of components are many, assembly processes are also many, cost is high, and a product space utilization ratio is low and an overall product size is large.SOLUTION: An energy storage power supply includes: a housing in which a housing cavity is provided, a plurality of first fixed components being provided on an inner wall of the housing cavity, a first through hole being provided in a bottom wall of each of the first fixed components; and a plurality of battery cells which are provided in one-to-one correspondence with the plurality of first fixed components, and each of which includes a body, a first pole pillar, and a second pole pillar, the first pole pillar and the second pole pillar being provided on both ends of the body in a length direction, one end of the body being housed in the first fixed component, the first pole pillar being provided through the first through hole.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to the field of energy storage technologies, and particularly to energy storage power sources.

Background Art

[0002] In related technologies, components such as battery cells, battery cell brackets, busbars, collector plates, and screws are assembled into a battery module, and the battery module is installed in the housing of a product and fixed with screws to assemble an energy storage power source. However, in the conventional solutions, the number and types of components are numerous, the assembly process is also numerous, and the cost is high. Also, to reserve the installation space, the space utilization rate of the product is low, and the overall product size is large.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The present invention provides an energy storage power source capable of solving at least one of the above existing technical problems.

Means for Solving the Problems

[0004] In the energy storage power source provided by an embodiment of the present invention, a housing, in which an accommodation cavity is provided, a plurality of first fixing components are provided on the inner wall of the accommodation cavity, and a first through hole is provided on the bottom wall of the first fixing component; and a plurality of battery cells, wherein the plurality of battery cells and the plurality of first fixing components correspond one-to-one, the battery cell includes a main body, a first pole column and a second pole column, the first pole column and the second pole column are respectively provided at both ends in the length direction of the main body, one end of the main body is accommodated in the first fixing component, and the first pole column is communicated to the outside of the accommodation cavity through the first through hole.

[0005] In the above energy storage power supply, a first fixing component is provided on the inner wall of the accommodation cavity, and one end of the main body of the battery cell is accommodated in the first fixing component, so that the battery cell can be directly mounted on the first fixing component. As a result, after assembling the battery module, there is no need to install it in the housing, which can reduce the assembly process and cost. In addition, the parts required for assembling the battery module can also be reduced. Therefore, the space utilization rate of the product can be improved or the product size can be reduced.

[0006] In some embodiments, a first bracket is provided on the inner wall of the accommodation cavity, and the plurality of first fixing components are provided on the first bracket.

[0007] In some embodiments, the energy storage power supply includes a second bracket located in the accommodation cavity. The second bracket is connected to the inner wall of the accommodation cavity, and a plurality of second fixing components are provided on the second bracket. A second through hole is provided on the bottom wall of the second fixing component. The plurality of battery cells and the plurality of second fixing components correspond one-to-one. The other end of the main body is accommodated in the second fixing component, and the second pole column communicates with the outside of the accommodation cavity through the second through hole.

[0008] In some embodiments, the first bracket includes a plurality of protruding support columns, and the support columns are fixedly connected to the second bracket.

[0009] In some embodiments, the first bracket includes a surrounding wall connected to the inner wall of the accommodation cavity, and an accommodation groove is formed by the surrounding wall. The accommodation groove communicates with the plurality of first fixing components.

[0010] In some embodiments, a fixing gel is injected into the accommodation groove, and the fixing gel fixedly connects the battery cell and the first bracket.

[0011] In some embodiments, the energy storage power source is a bus bar assembly including a first bus bar and a second bus bar, wherein the first bus bar is connected to the first pole posts of at least two battery cells, and the second bus bar is connected to the second pole posts of at least two battery cells.

[0012] In some embodiments, the energy storage power source includes a cover plate, a receiving groove is provided on the outer wall of the housing corresponding to the first fixing part, the first through hole penetrates the bottom wall of the receiving groove, the first bus bar is located in the receiving groove, the cover plate is provided on the outer wall of the housing and covers the receiving groove.

[0013] In some embodiments, the energy storage power source includes a thermally conductive adhesive, and the thermally conductive adhesive connects the cover plate and the first bus bar.

[0014] In some embodiments, the energy storage power source includes a sealing ring, and the sealing ring seals and connects the cover plate and the outer wall of the housing.

[0015] In some embodiments, the housing includes a first housing and a second housing, the first housing is removably connected to the second housing to form an enclosure surrounding the receiving cavity, and the first fixing part is provided on the first housing or the second housing.

[0016] Additional aspects and advantages of the present invention will be shown in part in the following description, become apparent from the following description, or be understood from the practice of the present invention.

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments based on the following drawings.

Brief Description of the Drawings

[0018]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Embodiments for Carrying Out the Invention

[0019] Hereinafter, embodiments of the present invention will be described in detail. Examples of the embodiments to be described are shown in the drawings, and the same or similar numbers from the beginning to the end indicate the same or similar elements or elements having the same or similar functions. Hereinafter, the embodiments described with reference to the drawings are exemplary and are only used for interpreting the present invention and should not be understood as limiting the present invention.

[0020] The following disclosure provides many different embodiments or examples for implementing different configurations of the present invention. For the sake of simplifying the disclosure of the present invention, the components and installations of specific examples are described. Of course, these are merely examples and are not intended to limit the present invention. Also, the present invention uses repeated reference numerals and / or reference characters in different examples, and this repetition is for the purpose of simplifying and clarifying the description, and does not indicate the relationship between the various embodiments and / or installations being discussed. Further, in the present invention, although examples of specific processes and materials are provided, those skilled in the art can be aware of the application of other processes and / or the use of other materials.

[0021] Also, the terms "first" and "second" are used only for the purpose of explanation and cannot be understood as indicating or suggesting relative importance or implying the number of technical features. Therefore, the features defined as "first" and "second" may or may not explicitly or implicitly include one or more features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

[0022] Expressions such as "one embodiment", "some embodiments", "exemplary embodiments", "examples", "specific examples", or "some examples" in the description of this specification mean that the specific features, structures, materials, or characteristics described in the embodiments or examples are included in one or more embodiments or examples of the present invention. The schematic expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Also, the specific features, structures, materials, or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0023] In the description of the present invention, the orientation or positional relationship indicated by "center", "vertical direction", "horizontal direction", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. is based on the orientation and positional relationship shown in the drawings, which is only for the purpose of explaining the present invention and simplifying the explanation, and does not indicate or imply that the indicated device or element must have a specific direction or must be constructed and operate in a specific direction, so it cannot be understood as a limitation of the present invention.

[0024] In the present invention, unless otherwise clearly defined or limited, the expression that the first feature is "above" or "below" the second feature includes not only the case where the first feature is in direct contact with the second feature, but also the case where they are not in direct contact and are in contact through other features intervening between them. Moreover, when the first feature is "above", "upward", or "upper surface" of the second feature, it means that the first feature is located exactly above or obliquely above the second feature, or simply that the horizontal height of the first feature is higher than the horizontal height of the second feature. When the first feature is "below", "downward", or "lower surface" of the second feature, it means that the first feature is located exactly below or obliquely below the second feature, or simply that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0025] In the description of the present invention, unless otherwise clearly defined or limited, the terms "mounted", "coupled", and "connected" should be understood in a broad sense. For example, these may be fixed connections, removable connections, or integrated connections, mechanical connections or electrical connections, direct connections or indirect connections through an intermediate medium, whether the two elements communicate internally or are in an interacting relationship. Those skilled in the art will be able to understand the specific meaning of these terms in the present invention according to the specific situation.

[0026] Please refer to FIGS. 1 to 4. In the energy storage power supply 100 according to an embodiment of the present invention, a housing 10 and a plurality of battery cells are included. An accommodation cavity 11 is provided in the housing 10. A plurality of first fixing components 1111 are provided on the inner wall 113 of the accommodation cavity 11. A first through hole 1112 is provided on the bottom wall of the first fixing component 1111. The plurality of battery cells 20 and the plurality of first fixing components 1111 correspond one-to-one. The battery cell 20 includes a main body 21, a first pole 22, and a second pole 23. The first pole 22 and the second pole 23 are respectively provided at both ends in the length direction of the main body 21. One end of the main body 21 is accommodated in the first fixing component 1111. The first pole 22 communicates with the outside of the accommodation cavity through the first through hole 1112.

[0027] In the above-mentioned energy storage power supply 100, by providing the first fixing component 1111 on the inner wall 113 of the accommodation cavity 11 and accommodating one end of the main body 21 of the battery cell 20 in the first fixing component 1111, the battery cell 20 can be directly mounted on the first fixing component 1111. As a result, after assembling the battery module, there is no need to install it in the housing 10, which can reduce the assembly process and cost. In addition, the parts required for assembling the battery module can also be reduced. Therefore, the space utilization rate of the product can be improved or the product size can be reduced.

[0028] In one embodiment, at least a part of the housing 10 of the energy storage power supply 100 surrounds to form an accommodation cavity 11, and the accommodation cavity 11 is used to accommodate the battery cell 20. The battery cell 20 may be cylindrical. The battery cell 20 can be placed vertically in the accommodation cavity 11, and the vertical direction corresponds to the length direction of its main body 21. Accordingly, the first fixing component 1111 is provided at the bottom of the accommodation cavity 11 to fix the bottom of the battery cell 20. It will also be understood that the first fixing component 1111 can be provided at the top of the accommodation cavity 11, thereby fixing the top of the battery cell 20. The first fixing component 1111 can be integrally formed with the housing 10 or can be connected to the bottom of the inner wall 113 of the accommodation cavity 11 by other fixed connection methods, whereby the battery cell 20 is relatively fixed to the housing 10. The first pole column 22 and the second pole column 23 of the battery cell 20 are current interfaces during power supply or charging of the battery cell 20. The battery cell 20 includes the first pole column 22 and the second pole column 23 respectively provided at both ends in the length direction of the main body 21. The first pole column 22 is penetrated through the first through hole 1112, that is, the battery cell 20 has two pole columns, and one of the pole columns is penetrated through the first through hole 1112.

[0029] Regarding different methods of electrical connection of two adjacent battery cells 20, the polarities of the first pole 22 and the second pole 23 may be different. When two adjacent battery cells 20 are connected in series, the first pole 22 of one of the battery cells 20 is the positive electrode, and the second pole 23 is the negative electrode, while the first pole 22 of the other battery cell 20 is the negative electrode, and the second pole 23 is the positive electrode. When two adjacent battery cells 20 are connected in parallel, the first pole 22 of one of the battery cells 20 is the positive electrode, and the second pole 23 is the negative electrode, and the first pole 22 of the other battery cell 20 is the positive electrode, and the second pole 23 is the negative electrode. One of the first pole 22 and the second pole 23 is connected to the first fixing part 1111. When the first fixing part 1111 is at the bottom of the accommodation cavity 11, the first pole 22 is the negative electrode, and the first pole 22 is connected to the first fixing part 1111, the first pole 22 can pass through the first through hole 1112 on the first fixing part 1111 and penetrate the housing 10 to be electrically connected to an external device. Thereby, a port for power supply or charging to the outside of the energy storage power supply 100 is established. Keep the number of the first fixing parts 1111 to match the number of the battery cells 20, so that all the battery cells 20 are fixed in the respective first fixing parts 1111. The first fixing part 1111 may be a circular concave groove. The diameter of the first fixing part 1111 corresponds to the diameter of the battery cell 20. The diameters of both may be made equal so that the battery cell 20 may be fixed in the concave groove, or the diameter of the first fixing part 1111 may be made slightly smaller than the diameter of the battery cell 20, and the fixing strength may be improved by interference fit. It will be understood that the first fixing part 1111 is set to a triangular, polygonal or other irregular shape, and the diameter of its maximum inner diameter circle is kept to meet the above conditions. By making the diameter of the first through hole 1112 not larger than the diameter of the first fixing part 1111, it is possible to prevent the battery cell 20 from slipping off from the first through hole 1112. In this way, by reducing the number of structural parts, the size and weight of the energy storage power supply 100 are reduced, the product structure and the assembly process are optimized, the volume energy density and the mass energy density of the product are improved, the cost is reduced, and it is easy to carry.In some embodiments, the first fixing component 1111 may be a fixing groove formed by interference with the battery cell 20, or may be in the form of a clamp, a clip, etc. to fix the battery cell 20.

[0030] Also, in some other embodiments, the battery cell 20 may be a rectangular battery cell. When the battery cell 20 is a rectangular battery cell, the shape of the first fixing component 1111 also becomes rectangular corresponding thereto. In some other embodiments, the battery cell 20 may be placed horizontally or in other directions within the accommodation cavity 11. When the battery cell 20 is placed horizontally, the first fixing component 1111 may be provided on the inner wall of the front side, rear side, left side or right side of the accommodation cavity 11 to fix the battery cell 20.

[0031] Please refer to FIG. 5. In some embodiments, a first bracket 111 is provided on the inner wall of the accommodation cavity 11, and a plurality of first fixing components 1111 are provided on the first bracket 111.

[0032] In this way, the structure of the housing 10 can be simplified.

[0033] Specifically, please refer to FIG. 5. In one embodiment, the first bracket 111 may be provided at the bottom of the accommodation cavity 11, and a plurality of first fixing components 1111 are provided on the first bracket 111. By assembling the plurality of first fixing components 1111 on the first bracket 111, the structure of the housing 10 can be simplified. The first bracket 111 can be welded onto the housing 10 or removably fixed using bolts or the like, and according to needs, the first bracket 111 with different numbers of first fixing components 1111 can be replaced, so that the flexibility of the energy storage power supply 100 can be improved.

[0034] In some embodiments, the first bracket 111 and the housing 10 are of an integrally formed structure.

[0035] In this way, the connection strength between the first bracket 111 and the housing 10 can be improved, and the manufacturing efficiency of the energy storage power supply 100 can be improved.

[0036] Specifically, in one embodiment, the materials of the first bracket 111 and the housing 10 are plastic, and the first bracket 111 and the housing 10 are integrally manufactured by an injection molding process, and the first bracket 111 and the housing 10 can be made into an integral molding structure.

[0037] In one embodiment, the materials of the first bracket 111 and the housing 10 may be metal, and the first bracket 111 and the housing 10 are integrally manufactured by processes such as die casting and stamping, and the first bracket 111 and the housing 10 can be made into an integral molding structure.

[0038] Since the first bracket 111 and the housing 10 have an integral molding structure, there is no gap between the first bracket 111 and the housing 10, and thus the connection strength between the first bracket 111 and the housing 10 can be improved. By manufacturing the first bracket 111 and the housing 10 by integral molding, the manufacturing efficiency of the energy storage power supply 100 can be improved.

[0039] Please refer to FIG. 5. In some embodiments, the energy storage power supply 100 includes a second bracket 112 located in the accommodation cavity 11. The second bracket 112 is connected to the inner wall of the accommodation cavity 11. A plurality of second fixing components (not shown) are provided on the second bracket 112. A second through hole 1121 is provided on the bottom wall of the second fixing component. The plurality of battery cells 20 and the plurality of second fixing components correspond one-to-one. The other end of the main body 21 is accommodated in the second fixing component. The second pole 23 communicates with the outside of the accommodation cavity through the second through hole 1121.

[0040] In this way, the fixing strength of the battery cell 20 is improved.

[0041] Specifically, the second terminal 23 of the battery cell 20 is disposed through the second through hole 1121, and the first terminal 22 is disposed through the first through hole 1112. That is, the battery cell 20 has two terminals, and the two terminals are respectively disposed through the first through hole 1112 and the second through hole 1121.

[0042] Regarding different methods of electrical connection of two adjacent battery cells 20, the polarities of the first terminal 22 and the second terminal 23 may be different. When two adjacent battery cells 20 are connected in series, the first terminal 22 of one of the battery cells 20 is the positive electrode, and the second terminal 23 is the negative electrode, while the first terminal 22 of the other battery cell 20 is the negative electrode, and the second terminal 23 is the positive electrode. When two adjacent battery cells 20 are connected in parallel, the first terminal 22 of one of the battery cells 20 is the positive electrode, and the second terminal 23 is the negative electrode, and the first terminal 22 of the other battery cell 20 is the positive electrode, and the second terminal 23 is the negative electrode.

[0043] Please refer to FIG. 5. In one embodiment, when one end of the battery cell 20 is fixed by the first fixing component 1111 and the first pole 22 penetrates through the first through hole 1112 of the first fixing component 1111, the second bracket 112 can fix the other end of the battery cell 20. When the first fixing component 1111 is provided at the bottom of the accommodation cavity 11, the second bracket 112 can be fixedly connected to the top of the accommodation cavity 11, thereby preventing the battery cell 20 from bending or popping out when the energy storage power supply 100 is subjected to disturbances such as vibration. The second fixing component is a circular concave groove corresponding to the diameter of the battery cell 20, and their diameters may be equal, thereby fixing the battery cell 20 in the concave groove. The diameter of the second fixing component may be slightly smaller than the diameter of the battery cell 20, thereby improving the fixing strength by interference fit. The second fixing component can be set to a triangular, polygonal or other irregular shape, and it will be understood that the diameter of its maximum inner diameter circle is maintained to meet the above conditions. By making the diameter of the second through hole 1121 less than or equal to the diameter of the second fixing component, the battery cell 20 is prevented from slipping out of the second through hole 1121. When the diameter of the first through hole 1112 is smaller than the diameter of the first fixing component 1111 and the diameter of the second through hole 1121 is smaller than the diameter of the second fixing component, both ends of the battery cell 20 may abut against the first fixing component 1111 of the first bracket 111 and the second fixing component of the second bracket 112 at that time, thereby further strengthening the fixing strength of the battery cell 20.

[0044] In some embodiments, the shape of the second fixing component may be square, corresponding to the cross-sectional shape of the battery cell 20. Also, when the battery cell 20 is placed horizontally or in another direction within the accommodation cavity 11, the first bracket 111 and the second bracket 112 may also be provided on the inner wall 113 in the corresponding direction within the accommodation cavity 11, each exerting the effect of fixing one end of the battery cell 20. In other embodiments, it will be understood that the battery cell 20 can be placed within the accommodation cavity 11 at various angles, and accordingly, the positions of the components connected to the battery cell 20 can be adjusted. Further details will not be repeated here.

[0045] Refer to FIG. 2. In some embodiments, the first bracket 111 includes a plurality of struts 1115, and the struts 1115 are fixedly connected to the second bracket 112.

[0046] In this way, the fixing strength of the battery cell 20 is improved.

[0047] Specifically, refer to FIG. 2. In one embodiment, the struts 1115 on the first bracket 111 extend along the height direction of the energy storage power supply 100 to the second bracket 112, connect to the second bracket 112, and screw holes may be provided on the struts 1115. The second bracket 112 can include screw components for screwing into the screw holes. As a result, the first bracket 111 is fixedly connected to the second bracket 112 by the engagement of the screw threads, sandwiching and fixing both ends of the battery cell 20. Also, the first bracket 111 may also include a bottom plate which is the structural main body of the first bracket 111. The struts 1115 can be integrally formed with the bottom plate or fixedly connected to the bottom plate by means such as screw thread connection. In another embodiment, the struts 1115 can also be fixedly connected to the second bracket 112 by means such as fasteners and pins.

[0048] Please refer to FIG. 6. In some embodiments, the first bracket 111 includes a surrounding wall 1113 connected to the inner wall 113 of the accommodation cavity 11. The surrounding wall 1113 forms an accommodation groove 1114. The accommodation groove 1114 communicates with a plurality of first fixing components 1111.

[0049] In this way, the fixing strength of the battery cell 20 is improved.

[0050] Specifically, please refer to FIG. 6. In one embodiment, along the length direction of the main body 21 of the battery cell 20, the first bracket 111 can be provided with surrounding walls 1113 around the four sides of the battery cell 20, and the height of the surrounding wall 1113 is smaller than the length of the battery cell 20. Along the length direction of the main body 21 of the battery cell 20, there are openings at both the upper and lower ends of the surrounding wall 1113, and the first fixing component 1111 of the first bracket 111 closes the opening at one end thereof. The surrounding wall 1113 and the first fixing component 1111 of the first bracket 111 surround to form the accommodation groove 1114, and the accommodation groove 1114 is surrounded within the accommodation cavity 11.

[0051] Please refer to FIG. 6. In some embodiments, a fixing gel is injected into the accommodation groove 1114, and the fixing gel fixedly connects the battery cell 20 and the first bracket 11.

[0052] In this way, the safety of the battery cell 20 can be improved.

[0053] After placing the battery cell 20 in the receiving groove 1114, the battery cell 20 closes the first through-hole 1112 of the first fixing component 1111, thereby sealing the other side surfaces of the receiving groove 1114 except for the top. When the opening is held upward at the top of the receiving groove 1114, a fixing gel is injected into the receiving groove 1114. After the fixing gel solidifies, the first bracket 111 and the battery cell 20 can be placed in the receiving cavity 11 in an inclined or horizontal posture. The fixing gel may have a certain degree of adhesiveness, thereby reducing the degrees of freedom of the battery cell 20 by a plurality. Also, it will be understood that the fixing gel may not have adhesiveness, thereby reducing the degrees of freedom of the battery cell 20 by only two. The combined use of the fixing gel and the first fixing component 1111 can further enhance the fixing strength and shock absorption ability of the battery cell 20.

[0054] Also, in some embodiments, the fixing gel may be a structural adhesive. The structural adhesive can withstand a large load. By injecting the structural adhesive into the receiving groove 1114, the impact resistance of the battery cell 20 can be enhanced. When the housing 10 of the energy storage power supply 100 is damaged and directly impacts the battery cell 20, the structural adhesive withstands part of the impact force while transmitting the impact force to the entire battery cell 20 to reduce the destruction of the impact. Also, the structural adhesive has excellent corrosion resistance. Even when the battery cell 20 leaks electrolyte due to structural damage or the electrolyte sprays out from the explosion-proof valve (not shown) of the battery cell 20 due to thermal runaway, further leakage of the electrolyte can be prevented and corrosion of other battery cells 20 and other structural components can be avoided.

[0055] Please refer to FIGS. 5 and 6. In some embodiments, the energy storage power supply 100 includes a busbar assembly 30. The busbar assembly 30 includes a first busbar 31 and a second busbar 32. The first busbar 31 is connected to the first pole posts 22 of at least two battery cells 20. The second busbar 32 is connected to the second pole posts 23 of at least two battery cells 20.

[0056] In this way, it is advantageous for the battery cells 20 to supply power to the electrical equipment integrally.

[0057] Specifically, refer to FIGS. 5 and 6. In one embodiment, the energy storage power supply 100 can increase the diversity of the output current through the bus bar assembly 30. The first pole post 22 of the battery cell 20 is connected to the first bus bar 31 through the first through hole 1112. The second pole post 23 of the battery cell 20 can be directly connected to the bus bar. The first bus bar 31 can connect some of the first pole posts 22 of the battery cells 20, and the second bus bar 32 can connect the corresponding some of the second pole posts 23 of the battery cells 20. As a result, some of the battery cells 20 can output power outward or input power inward in parallel. The bus bar assembly 30 may include a plurality of first bus bars 31 and a plurality of second bus bars 32, and the plurality of first bus bars or the plurality of second bus bars can output power outward or input power inward in series or in parallel. The bus bar assembly 30 may be made of copper, aluminum, nickel, or an alloy material. After the bus bar assembly 30 is fixed in the correct position using a work jig, the bus bar assembly 30 can be welded to the first pole post 22 or the second pole post 23 of the battery cell 20 by laser welding. It will also be understood that other connection methods such as twisting and crimping can also electrically connect the bus bar assembly 30 to the pole posts of the battery cell 20. In another embodiment, the energy storage power supply 100 further includes a second bracket 112, and the second pole post 23 of the battery cell 20 can be connected to the second bus bar 32 through the second through hole 1121.

[0058] In another embodiment, the energy storage power source 100 can also collect the state information of each battery cell 20 through the collection assembly 40. The state information of the battery cell 20 may include information such as the voltage, current, and temperature of each battery cell 20. The collection assembly 40 may include a first collection plate 41 and a second collection plate 42. The first collection plate 41 is connected to the first bus bar 31, and the second collection plate 42 is connected to the second bus bar 32. After welding the first bus bar 31 and the second bus bar 32, the first collection plate 41 may be fixed at a corresponding position on the first bus bar 31 through screws, and the second collection plate 42 may be fixed at a corresponding position on the second bus bar 32. After the fixation of the collection assembly 40 is completed, the nickel strip of the first collection plate 41 and the first bus bar 31 may be connected by an electrical connection method such as laser welding, thereby realizing the electrical connection between the first collection plate 41 and the first bus bar 31. At the same time, the second collection plate 42 and the second bus bar 32 can also be connected in the same way.

[0059] Please refer to FIGS. 5 to 8. In some embodiments, the energy storage power source 100 includes a cover plate 50. A receiving groove is provided on the outer wall 12 of the housing 10 corresponding to the first fixing part 1111. The first through hole 1112 penetrates the bottom wall of the receiving groove 121, and the first bus bar 31 is located in the receiving groove 121. The cover plate 50 is provided on the outer wall 12 of the housing 10 and covers the receiving groove 121.

[0060] In this way, it is advantageous to reduce the volume of the product.

[0061] Specifically, please refer to FIGS. 5 to 8. In one embodiment, the first housing 13 and the second housing 14 are connected to each other by bolts and can form an accommodation cavity 11 by surrounding it. When the battery cell 20 is vertically placed in the accommodation cavity 11 and the first fixing component 1111 is provided at the bottom of the accommodation cavity 11, the accommodation groove 121 will also be placed at the bottom of the housing 10. The outer wall 12 at the bottom of the housing 10 is recessed inward to form the accommodation groove 121, and the outer wall 12 is, that is, the bottom wall of the housing 10. The first pole 22 of the battery cell 20 passes through the first through hole 1112, penetrates the first fixing component 1111, and enters the accommodation groove 121. The first bus bar 31 may also be connected to the first pole 22 in the accommodation groove 121. Thereby, the first pole 22 and the first bus bar 31 are integrated at the bottom of the housing 10, the degree of overall integration is increased, and the volume of the product is reduced. By providing the cover plate 50 to cover the accommodation groove 121, the integrity of the housing 10 can be further enhanced, and the first pole 22 and the first bus bar 31 can be protected. The cover plate 50 is fixed to the housing 10 by bolts, but of course it can also be fixed by other methods, which are not limited here.

[0062] In the illustrated embodiment, the first bracket 111 and the first housing 13 are of an integrally formed structure.

[0063] In some embodiments, the cover plate 50 is connected to the housing 10 by an adhesive (not shown) in the accommodation groove 121 and fixed to the housing 10 by a fastener (not shown).

[0064] In this way, the cover plate 50 can be fixed.

[0065] Specifically, when fixing the cover plate 50, first inject an adhesive into the accommodation groove 121, then cover the cover plate 50, and connect the cover plate 50 and the housing 10 with the adhesive. Next, attach and fix a fastener (for example, a screw). The adhesive can play a role in temporarily fixing the cover plate 50 to the housing 10, and can ensure to a certain extent the fixing effect of the fastener on the cover plate 50 and the housing 10.

[0066] Please refer to FIGS. 5 to 8. In some embodiments, the energy storage power supply 100 includes a thermally conductive adhesive. The thermally conductive adhesive connects the cover plate 50 and the first bus bar.

[0067] In this way, the temperature of the first bus bar 31 can be lowered.

[0068] Specifically, please refer to FIGS. 5 to 8. In one embodiment, when current flows through the first bus bar 31, a certain current loss occurs and heat is generated. The accumulated heat raises the temperatures of the first bus bar 31 and the battery cell 20, causing safety risks such as fire. Therefore, by filling a thermally conductive adhesive between the first bus bar 31 and the cover plate 50, the heat of the first bus bar 31 is transmitted to the cover plate 50, and the heat is released to the surrounding environment through the cover plate 50, so that a cooling effect on the first bus bar 31 and the battery cell 20 can be exerted. Since the cover plate 50 may be made of an aluminum material, it has a relatively good heat transfer effect. Also, for the housing 10, a material with a good heat transfer effect such as an aluminum material can be adopted, thereby further transmitting the heat from the cover plate 50 to the housing 10 and enhancing the cooling effect on the first bus bar 31 and the battery cell 20.

[0069] Please refer to FIGS. 5 and 6. In some embodiments, the energy storage power supply 100 further includes a sealing ring 60. The sealing ring 60 makes a sealed connection between the cover plate 50 and the outer wall 12 of the housing 10.

[0070] In this way, the sealing effect of the accommodation groove 121 can be enhanced.

[0071] Specifically, please refer to FIGS. 5 and 6. In one embodiment, an accommodation groove 121 is formed in the outer wall 12 of the housing 10. A busbar assembly 30 is accommodated in the accommodation groove 121. In a humid use environment, if the sealing effect of the accommodation groove 121 is poor, water vapor will penetrate into the accommodation groove 121, and the first busbar 31 may rust due to the penetrated water vapor, or in the worst case, a short circuit may be caused. Therefore, when the cover plate 50 covers the accommodation groove 121, by providing a sealing ring 60 between the cover plate 50 and the outer wall 12 of the housing 10, the sealing effect of the accommodation groove 121 can be further strengthened, and the busbar assembly 30 in the accommodation tank 121 can be isolated from the external water vapor.

[0072] Please refer to FIGS. 5 and 6. In some embodiments, the housing 10 includes a first housing 13 and a second housing 14. The first housing 13 is removably connected to the second housing 14 to form an enclosure surrounding the accommodation cavity 11. A first fixing part 1111 is provided on the first housing 13 or the second housing 14.

[0073] In this way, installation and repair become easier.

[0074] Specifically, please refer to FIGS. 5 and 6. In one embodiment, the housing 10 may include a first housing 13 located at the upper part and a second housing 14 located at the lower part. The first fixing component 1111 may be provided on the first housing 13 or on the second housing 14. In some embodiments, the first housing 13 and the second housing 14 may be located at the front and rear parts or the left and right parts of the housing 10, or may be arranged at two diagonals of the housing 10. The first fixing component 1111 is provided on one of the first housing 13 and the second housing 14. In another embodiment, the first housing 13 and the second housing 14 may be removably connected to each other by means such as threads, fasteners, or clamps. The first housing 13 and the second housing 14 enclose the accommodation cavity 11 to accommodate the battery cell 20. Thereby, the ease of assembly and disassembly repair is improved. In yet another embodiment, the energy storage power supply 100 further includes a second bracket 112. The first fixing component 1111 and the second bracket 112 may be respectively connected to one of the first housing 13 and the second housing 14.

[0075] Please refer to FIGS. 5 and 6. In some embodiments, the first fixing component 1111 is connected to the first housing 13 as an integral structure, or the first fixing component 1111 is connected to the second housing 14 as an integral structure.

[0076] In this way, the overall strength is improved.

[0077] Specifically, please refer to FIGS. 5 and 6. In one embodiment, the first fixing component 1111 and the first housing 13 may be of an integral structure, thereby improving the integrity of the first fixing component 1111 and the housing 10. When transporting the energy storage power supply 100, the housing 10 and the first fixing component 1111 with good integrity can reduce the shaking movement of the battery cell 20 relative to the housing 10 of the battery cell 20, thereby reducing the collision and compression between internal structures such as the battery cell 20 and ensuring the use safety of the energy storage power supply 100. Of course, the first fixing component 1111 can also be connected to the second housing 14 in an integral structure. In another embodiment, the energy storage power supply 100 further includes a second bracket 112. The first fixing component 1111 and the second bracket 112 can be connected to one of the first housing 13 and the second housing 14 in an integral structure, respectively.

[0078] In yet another embodiment, the injection molding process can be used to manufacture the first fixing component 1111 and the first housing 13 as an integral structure, or the first fixing component 1111 and the second housing 14 as an integral structure.

[0079] Also, please refer to FIG. 1. In one embodiment, the energy storage power supply 100 may further include a panel 70 provided on the housing 10. The panel 70 can display information such as the current power level and battery temperature of the energy storage power supply 100. The panel 70 further includes a port for connecting the energy storage power supply 100 to an electrical appliance or a charging device, whereby the battery cell can supply power to the electrical appliance or receive power from the charging device.

[0080] Although the embodiments of the present invention have been shown and described, those skilled in the art can make various changes, combinations, modifications, substitutions, and variations to these embodiments without departing from the principles and spirit of the present invention. It can be understood that the scope of the present invention is limited by the claims and their equivalents.

Description of Reference Numerals

[0081] 100 Energy storage power supply 10 Housing 11 Accommodation cavity 111 First bracket 1111 First fixing part 1112 First through hole 1113 Enclosure wall 1114 Accommodation groove 1115 Support pillar 112 Second bracket 1121 Second through hole 113 Inner wall 12 Outer wall 121 Accommodation groove 13 First housing 14 Second housing 20 Battery cell 21 Body 22 First terminal post 23 Second terminal post 30 Busbar assembly 31 First busbar 32 Second busbar 40 Collection assembly 41 First collection plate 42 Second collection plate 50 Cover plate 60 Sealing ring 70 Panel

Claims

1. In energy storage power sources, A housing, the housing having a receiving cavity therein, a plurality of first fixing components provided on an inner wall of the receiving cavity, and a first through hole provided on a bottom wall of the first fixing components; a plurality of battery cells, the plurality of battery cells and the plurality of first fixing parts correspond one-to-one to each other, the plurality of battery cells including a main body, a first pole and a second pole, the first pole and the second pole being respectively provided at both ends in a longitudinal direction of the main body, one end of the main body being accommodated in the first fixing part, and the first pole communicating with the outside of the accommodating cavity through the first through hole; a first bus bar provided outside the receiving cavity and connected to the first poles of the at least two battery cells; a second bracket located within the receiving cavity, connected to an inner wall of the receiving cavity, and provided with a plurality of second fixing components, a bottom wall of the second fixing components being provided with a second through hole, the plurality of battery cells and the plurality of second fixing components being in one-to-one correspondence, and the other end of the main body being accommodated in the second fixing components; an accommodating groove is provided on an outer wall of the housing corresponding to the first fixed component, the first through hole penetrates a bottom wall of the accommodating groove, the first bus bar is located in the accommodating groove, and a cover plate is provided on the outer wall of the housing and covers the accommodating groove.

2. 2. The energy storage power source according to claim 1, wherein a first bracket is provided on an inner wall of the receiving cavity, and the first bracket is provided with the plurality of first fixing components.

3. The energy storage power source of claim 2 , wherein the first bracket includes a plurality of posts, the posts being fixedly connected to the second bracket.

4. 3. The energy storage power supply according to claim 2, wherein the first bracket includes an enclosure wall connected to an inner wall of the accommodating cavity, the enclosure wall defines an accommodating groove, and the accommodating groove communicates with the plurality of first fixed components.

5. 5. The energy storage power source according to claim 4, wherein a fixing gel is injected into the receiving groove, and the fixing gel fixedly connects the battery cell and the first bracket.

6. The energy storage power source according to any one of claims 2 to 5, wherein the first bracket and the housing are formed as an integrally molded structure.

7. The energy storage power source includes:

10. The energy storage power source of claim 1, further comprising a second bus bar connected to second poles of the at least two battery cells.

8. 2. The energy storage power source of claim 1, wherein the cover plate is connected to the housing by an adhesive in the receiving groove or is fixed to the housing by a fastener.

9. The energy storage power source of claim 1 , wherein the energy storage power source includes a thermally conductive adhesive, the thermally conductive adhesive connecting the cover plate and the first bus bar.

10. The energy stored power supply of claim 1 , further comprising a sealing ring, said sealing ring sealingly connecting said cover plate and an outer wall of said housing.

11. 2. The energy storage power source of claim 1, wherein the housing includes a first housing and a second housing, the first housing removably connected to the second housing to enclose and define the receiving cavity, and the first fixed component is provided on the first housing or the second housing.

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