Energy storage power supply and assembly method thereof

Abstract

The present invention discloses an energy storage power supply and an assembly method thereof. The energy storage power supply comprises a plurality of battery cells, a shell, a busbar and an inverter, the battery cell comprises a positive electrode and a negative electrode, the positive electrode and the negative electrode are arranged at the first end of the battery cell, the shell is provided with a receiving cavity, the battery cell is fixed in the receiving cavity, the shell comprises a first shell and a second shell, the inner wall of the first shell is provided with a first limiting portion, the first limiting portion is formed with a through hole, the first end of the battery cell is inserted in the through hole, the second shell is arranged opposite to the first shell, the inner wall of the second shell is provided with a second limiting portion, the second limiting portion is formed with an embedding groove, the second end of the battery cell is inserted in the embedding groove, the busbar is located on the side of the first shell away from the second shell, the busbar connects the positive electrode of the battery cell and the negative electrode of the adjacent battery cell, the inverter is fixed in the receiving cavity and is electrically connected to the battery cell. In this way, the number and types of structural parts of the energy storage power supply can be reduced, thereby reducing the assembly process, and at the same time, the size of the energy storage power supply can be reduced.

Description

Technical Field

[0001] The present invention relates to the field of energy storage technology, and in particular to an energy storage power supply and an assembly method thereof. Background Art

[0002] In the related art, the battery pack includes a shell and a battery module. The battery module is fixed to the shell by screws, etc. The battery module is assembled from parts such as battery cells, battery cell brackets, busbars, collection boards and screws. When assembling the battery pack, the battery module is first assembled into a battery module using various parts, and then the battery module is fixed in the shell. However, such a battery pack results in a large number and variety of related structural parts, many assembly processes, and a large size of the whole product. Summary of the invention

[0003] The invention provides an energy storage power supply and an assembling method thereof.

[0004] The energy storage power supply of the embodiment of the present application includes multiple battery cells, a shell, a bus and an inverter. The battery cell includes a positive electrode and a negative electrode, and the positive electrode and the negative electrode are arranged at the first end of the battery cell. The shell is provided with a accommodating cavity, and the battery cell is fixed in the accommodating cavity. The shell includes a first shell and a second shell. The inner wall of the first shell is provided with a first limiting portion, and the first limiting portion is formed with a through hole. The first end of the battery cell is inserted into the through hole. The second shell is arranged opposite to the first shell. The inner wall of the second shell is provided with a second limiting portion, and the second limiting portion is formed with an embedding groove. The second end of the battery cell is inserted in the embedding groove. The bus is located on the side of the first shell away from the second shell. The bus connects the positive electrode of the battery cell and the negative electrode of the adjacent battery cell. The inverter is fixed in the accommodating cavity and is electrically connected to the battery cell.

[0005] In the above energy storage power supply, the first end of the battery cell is installed on the first shell through the through hole, and the second end of the battery cell is installed on the second shell through the embedding groove, which can reduce the number and types of structural parts of the energy storage power supply, thereby reducing the assembly process and reducing the size of the energy storage power supply.

[0006] In some embodiments, there are multiple through holes and multiple embedded grooves, and the multiple through holes and multiple embedded grooves correspond one-to-one to the multiple battery cells.

[0007] In this way, the first ends of all the battery cells can be respectively inserted into a through hole, and the second ends of all the battery cells can be respectively inserted into an embedding groove, which is beneficial to improving the stability of each battery cell in the energy storage power supply.

[0008] In some embodiments, the first limiting portion and the first shell are an integral structure.

[0009] In this way, the number and types of structural components of the energy storage power supply can be reduced, thereby reducing the number of assembly steps, and at the same time the size of the energy storage power supply can be reduced and the overall strength can be improved.

[0010] In some embodiments, the second limiting portion is cylindrical, and the second limiting portion and the second shell are an integral structure.

[0011] In this way, the number and types of structural components of the energy storage power supply can be reduced, thereby reducing the number of assembly steps, and at the same time the size of the energy storage power supply can be reduced and the overall strength can be improved.

[0012] In certain embodiments, the energy storage power source includes a cover plate, which covers the busbar.

[0013] In this way, the cover can protect the bus and reduce the risk of deformation and falling off of the bus due to external collision, thereby improving the stability of the energy storage power supply.

[0014] In some embodiments, the energy storage power supply includes a decorative cover and a panel, which are arranged between the first shell and the second shell and connected to the first shell and the second shell. The first shell, the second shell, the decorative cover and the panel form a accommodating cavity, and the decorative cover is provided with a vent connected to the accommodating cavity.

[0015] In this way, the decorative cover can improve the appearance while increasing the air circulation between the inside of the accommodating cavity and the external environment, thereby preventing the temperature inside the accommodating cavity from being too high and affecting the operation of the electronic components.

[0016] In certain embodiments, the energy storage power supply includes a main board, which is disposed in the accommodating cavity and located on one side of the battery cell. The main board is connected to the panel and electrically connected to the battery cell.

[0017] In this way, the mainboard can obtain user instructions through the user input port to control the charging or discharging process of the battery cell.

[0018] In some embodiments, the inverter is disposed on one side of the battery cell, and the inverter is electrically connected to the mainboard.

[0019] In this way, the inverter can be used to convert the direct current generated by the battery cells into alternating current for use by electrical devices.

[0020] In certain embodiments, the energy storage power source includes a battery management system, which is disposed in the accommodating cavity and located on one side of the battery cell, and the battery management system is electrically connected to the battery cell.

[0021] In this way, the battery management system can be used to monitor the status information of the battery cells, such as current, temperature or voltage, to avoid overcharging, over-discharging or short-circuiting of the battery cells, thereby protecting the battery cells from damage.

[0022] The assembly method of the energy storage power supply of the embodiment of the present application includes:

[0023] Inserting the first ends of the plurality of battery cells into the through holes formed by the first limiting portion on the inner wall of the first shell, wherein the first ends of the battery cells are provided with a positive electrode and a negative electrode;

[0024] Connect the positive electrode of the battery cell and the negative electrode of the adjacent battery cell using a busbar;

[0025] The second end of the battery core is inserted into an embedding groove formed by a second limiting portion located on the inner wall of the second shell.

[0026] In the above-mentioned energy storage power supply assembly method, the assembly process of the energy storage power supply is reduced and the assembly efficiency is improved.

[0027] In certain embodiments, after connecting the positive electrode of the battery cell and the negative electrode of the adjacent battery cell using a bus bar, the method includes:

[0028] The cover plate is fixed to a side of the first housing facing away from the second housing, so that the cover plate covers the busbar.

[0029] In some embodiments, before inserting the second end of the battery cell into the embedding groove formed by the second limiting portion located on the inner wall of the second housing, the method includes:

[0030] Connecting the decorative cover and the panel to the first shell, so that the first shell, the decorative cover and the panel form a receiving cavity, the receiving cavity is used to accommodate the battery cell and the main board, and the main board is located on one side of the battery cell;

[0031] Electrically connect the mainboard to the battery cells and inverter.

[0032] In some embodiments, before connecting the decorative cover and the panel to the first housing, the method includes:

[0033] Connect the mainboard to the panel.

[0034] In some embodiments, before connecting the decorative cover and the panel to the first housing, the method includes:

[0035] The inverter is arranged in the accommodating cavity so that the inverter is located on one side of the battery cell;

[0036] Electrically connect the inverter to the battery cell.

[0037] In some embodiments, before connecting the decorative cover and the panel to the first housing, the method includes:

[0038] The battery management system is arranged in the receiving cavity so that the battery management system is located on one side of the battery cell;

[0039] Connect the battery management system to the battery cells electrically.

[0040] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0042] Figure 1 It is a schematic diagram of the structure of an energy storage power supply according to an embodiment of the present invention;

[0043] Figure 2 is an exploded schematic diagram of an energy storage power supply according to an embodiment of the present invention;

[0044] Figure 3 is a schematic structural diagram of a battery cell according to an embodiment of the present invention;

[0045] Figure 4 is a schematic structural diagram of a first shell according to an embodiment of the present invention;

[0046] Figure 5 It is a schematic diagram of the structure of an energy storage power supply according to an embodiment of the present invention;

[0047] Figure 6 is a schematic structural diagram of a second housing according to an embodiment of the present invention;

[0048] Figure 7 It is a schematic diagram of the structure of an energy storage power supply according to an embodiment of the present invention;

[0049] Figure 8 It is a schematic diagram of the structure of an energy storage power supply according to an embodiment of the present invention;

[0050] Fig. 9 is a schematic structural diagram of a first shell according to an embodiment of the present invention;

[0051] Fig.10 It is a schematic diagram of the structure of an energy storage power supply according to an embodiment of the present invention;

[0052] Fig.11 It is a schematic flow chart of an assembly method of an energy storage power supply according to an embodiment of the present invention;

[0053] Fig.12 It is a diagram of the assembly process of the energy storage power supply according to the embodiment of the present invention.

[0054] Explanation of the accompanying drawings: 1. energy storage power source; 10. battery cell; 11. positive electrode; 12. negative electrode; 13. first end; 14. second end; 2. shell; 20. first shell; 21. first limiting portion; 22. through hole; 23. first through hole; 24. second through hole; 25. mounting hole; 30. second shell; 31. second limiting portion; 32. embedding groove; 40. bus; 50. cover plate; 60. decorative cover; 61. vent; 70. panel; 71. accommodating cavity; 80. main board; 90. inverter; 100. battery management system; 110. handle. DETAILED DESCRIPTION

[0055] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0056] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0057] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0059] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0060] See also Figure 1 and Figure 2 The energy storage power supply 1 of the embodiment of the present application includes multiple battery cells 10, a shell 2, a bus 40 and an inverter 90. The shell 2 is provided with a accommodating cavity 71, and the battery cell 10 is fixed in the accommodating cavity 71. The shell 2 includes a first shell 20 and a second shell 30.

[0061] See also Figure 3 The battery cell 10 includes a positive electrode 11 and a negative electrode 12 , and the positive electrode 11 and the negative electrode 12 are arranged at a first end 13 of the battery cell 10 .

[0062] See also Figure 3-Figure 5 A first limiting portion 21 is formed on the inner wall of the first shell 20 . A through hole 22 is formed in the first limiting portion 21 . The first end 13 of the battery cell 10 is inserted into the through hole 22 .

[0063] See also Figure 2 , Figure 3 and Figure 6 The second shell 30 is arranged opposite to the first shell 20 , and the inner wall of the second shell 30 is provided with a second limiting portion 31 , and the second limiting portion 31 is formed with an embedding groove 32 , and the second end 14 of the battery cell 10 is inserted into the embedding groove 32 .

[0064] See also Figure 3 , Figure 5 and Figure 7 The bus bar 40 is located on a side of the first shell 20 away from the second shell 30 , and the bus bar 40 connects the positive electrode 11 of the battery cell 10 and the negative electrode 12 of the adjacent battery cell 10 .

[0065] See also Figure 2 and Figure 8 The inverter 90 is fixed in the accommodating cavity 71 and is electrically connected to the battery cell 10 .

[0066] In the above energy storage power supply 1, the first end 13 of the battery cell 10 is installed on the first shell 20 through the through hole 22, and the second end 14 of the battery cell 10 is installed on the second shell 30 through the embedding groove 32, which can reduce the number and types of structural parts of the energy storage power supply 1, thereby reducing the assembly process and reducing the size of the energy storage power supply 1.

[0067] Specifically, the first end 13 and the second end 14 are disposed opposite to each other. It can be understood that the first end 13 and the second end 14 can be the lower end and the upper end, the left end and the right end, the front end and the rear end or other opposite ends of the battery cell 10, respectively, which is related to factors such as the shape and placement direction of the battery cell 10. For example, the battery cell 10 can be a cylindrical battery cell 10, and the battery cell 10 can be placed vertically in the first shell 20 and the second shell 30, and the vertical direction corresponds to the length direction of the battery cell 10, then the first end 13 can be the lower end of the battery cell 10, and the second end 14 can be the upper end of the battery cell 10.

[0068] The positive electrode 11 and the negative electrode 12 of the battery cell 10 are current interfaces when the battery cell 10 is powered or charged. The first end 13 of the battery cell 10 may be provided with two protrusions of different shapes or sizes, and the two protrusions are the positive electrode 11 and the negative electrode 12 respectively. Alternatively, the first end 13 of the battery cell 10 may be provided with a protrusion, and the protrusion is one of the positive electrode 11 and the negative electrode 12, and the other part of the first end 13 can become the other one of the positive electrode 11 and the negative electrode 12.

[0069] The first shell 20 and the second shell 30 can be arranged opposite to each other in the vertical direction, and the second shell 30 can be located above the first shell 20 or below the first shell 20. In the embodiment of the present application, the second shell 30 is located above the first shell 20. The first shell 20 can be formed by a bottom wall and a plurality of side walls, and the plurality of side walls extend upward from the edge of the bottom wall. The first limit portion 21 can be arranged on the upper surface of the first shell 20, that is, the bottom wall of the first shell 20 is close to the surface of the second shell 30. The second shell 30 can be formed by a top wall and a plurality of side walls, and the plurality of side walls extend downward from the edge of the top wall. The second limit portion 31 can be arranged on the lower surface of the second shell 30, that is, the top wall of the second shell 30 is close to the surface of the first shell 20.

[0070] The through hole 22 may include a first through hole 23 and a second through hole 24. The positive electrode 11 may be provided with the first through hole 23, and the negative electrode 12 may be provided with the second through hole 24. The shape of the first through hole 23 may match the shape of the positive electrode 11, and the shape of the second through hole 24 may match the shape of the negative electrode 12. The first through hole 23 and the second through hole 24 are arranged at intervals, and the size of the first through hole 23 and the second through hole 24 is smaller than the size of the battery cell 10 to prevent the battery cell 10 from slipping from the first through hole 23 or the second through hole 24.

[0071] The busbar 40 may be made of copper, aluminum, nickel or alloy material, and the busbar 40 may be welded to the positive electrode 11 and the negative electrode 12 of the battery cell 10 by laser welding. It is understood that the electrical connection between the busbar 40 and the positive electrode 11 and the negative electrode 12 of the battery cell 10 may also be achieved by twisting or pressing or other connection methods. There may be a plurality of busbars 40, and a plurality of busbars 40 connect a plurality of battery cells 10 in series.

[0072] The inverter 90 can be fixed to the first housing 20 by means of buckles or screws. The inverter 90 is electrically connected to the battery cell 10, which means that the inverter 90 and the battery cell 10 can be connected by a physical line that can transmit electrical signals, such as PCB copper foil or wires.

[0073] See also Figure 3-Figure 6 In some embodiments, the number of the through holes 22 and the embedding grooves 32 are both multiple, and the multiple through holes 22 and the multiple embedding grooves 32 correspond one-to-one to the multiple battery cells 10.

[0074] In this way, the first ends 13 of all the battery cells 10 can be respectively inserted into a through hole 22 , and the second ends 14 of all the battery cells 10 can be respectively inserted into an embedding groove 32 , which is beneficial to improving the stability of each battery cell 10 in the energy storage power supply 1 .

[0075] Specifically, the number of battery cells 10 can be 3, 4, 5, 6, 7, 8, etc. In one embodiment, the number of battery cells 10 is 8, the number of through holes 22 and the number of embedding grooves 32 is 8, the first ends 13 of the 8 battery cells 10 are respectively inserted in the 8 through holes 22, and the second ends 14 of the 8 battery cells 10 are respectively inserted in the 8 embedding grooves 32.

[0076] See also Figure 4 In some embodiments, the first limiting portion 21 and the first shell 20 are an integral structure.

[0077] In this way, the number and types of structural components of the energy storage power supply 1 can be reduced, thereby reducing the number of assembly steps, and at the same time, the size of the energy storage power supply 1 can be reduced and the overall strength can be improved.

[0078] Specifically, combined Figure 4 and Fig. 9 The first limiting portion 21 may be plate-shaped, and the upper surface of the first housing 20 may penetrate downward to form a mounting hole 25, and the first limiting portion 21 covers the mounting hole 25. Figure 3 and Figure 5, the positive electrode 11 and the negative electrode 12 may protrude from the through hole 22, partially be located in the mounting hole 25, or be located in the through hole 22. When the positive electrode 11 is a protruding column, and the other part of the first end 13 of the battery cell 10 is the negative electrode 12, the positive electrode 11 may protrude from the through hole 22, partially be located in the mounting hole 25, and the negative electrode 12 may be located in the through hole 22. The shape of the mounting hole 25 may be square, the first limiting portion 21 may be a square plate-like structure, and the size of the first limiting portion 21 may be greater than or equal to the size of the mounting hole 25.

[0079] In one embodiment, the first limiting portion 21 can be a cylindrical structure formed by extending upward from the upper surface of the first shell 20, and the inner surface of the first limiting portion 21 and the upper surface of the first shell 20 together form a mounting groove. The portion of the upper surface of the first shell 20 corresponding to the first limiting portion 21 can penetrate downward to form a through hole 22. The inner diameter of the first limiting portion 21 can be slightly larger than or equal to the diameter of the first end 13 of the battery cell 10, that is, the diameter of the mounting groove can be slightly larger than or equal to the diameter of the first end 13 of the battery cell 10, so that the first end 13 of the battery cell 10 can be inserted into the mounting groove.

[0080] The first limiting portion 21 and the first shell 20 are an integral structure. The first limiting portion 21 and the first shell 20 may be integrally formed, or the first limiting portion 21 and the first shell 20 may be integrally formed by welding, bonding, or the like.

[0081] See also Figure 6 In some embodiments, the second limiting portion 31 is cylindrical, and the second limiting portion 31 and the second shell 30 are an integral structure.

[0082] In this way, the number and types of structural components of the energy storage power supply 1 can be reduced, thereby reducing the number of assembly steps, and at the same time, the size of the energy storage power supply 1 can be reduced and the overall strength can be improved.

[0083] Specifically, the second limiting portion 31 can be a cylindrical structure formed by extending downward from the lower surface of the second shell 30. The inner surface of the second limiting portion 31 and the lower surface of the second shell 30 together form an embedding groove 32. The inner diameter of the second limiting portion 31 can be slightly larger than or equal to the diameter of the second end 14 of the battery cell 10, that is, the diameter of the embedding groove 32 can be slightly larger than or equal to the diameter of the second end 14 of the battery cell 10, so that the second end 14 of the battery cell 10 can be inserted into the embedding groove 32.

[0084] The second limiting portion 31 and the second shell 30 are an integral structure. The second limiting portion 31 and the second shell 30 may be integrally formed, or the second limiting portion 31 and the second shell 30 may be integrally formed by welding, bonding, or the like.

[0085] See also Figure 7 and Fig.10In some embodiments, the energy storage power supply 1 includes a cover plate 50 , and the cover plate 50 covers the bus 40 .

[0086] In this way, the cover plate 50 can protect the busbar 40 and reduce the risk of deformation or falling off of the busbar 40 due to external collision, thereby improving the stability of the energy storage power supply 1.

[0087] Specifically, the cover plate 50 can be disposed in the mounting hole 25, and the shape and size of the cover plate 50 can match the shape and size of the mounting hole 25. The cover plate 50 can be fixed to the first housing 20 by bolts. The cover plate 50, the first housing 20, and the second housing 30 can be made of materials with good heat transfer effect such as aluminum to transfer the heat generated by the battery cell 10 during charging and discharging to the outside of the energy storage power supply 1.

[0088] In one embodiment, the energy storage power supply 1 further includes a sealing ring, which connects the cover plate 50 and the side wall forming the mounting hole 25 to improve the sealing effect of the mounting hole 25 and reduce the risk of corrosion or even short circuit of the bus 40 caused by water vapor intrusion.

[0089] See also Figure 2 and Figure 8 In some embodiments, the energy storage power supply 1 includes a decorative cover 60 and a panel 70, which are arranged between the first shell 20 and the second shell 30 and connected to the first shell 20 and the second shell 30. The first shell 20, the second shell 30, the decorative cover 60 and the panel 70 form a accommodating cavity 71, and the decorative cover 60 is provided with a vent 61 connected to the accommodating cavity 71.

[0090] In this way, the decorative cover 60 can improve the appearance while increasing the air circulation between the inside of the accommodating cavity 71 and the external environment, thereby preventing the internal temperature of the accommodating cavity 71 from being too high and affecting the operation of the electronic components.

[0091] Specifically, the number of the decorative covers 60 can be two, and the two decorative covers 60 can be respectively installed on the left and right sides of the energy storage power supply 1. The decorative cover 60 can be connected to the first shell 20 and the second shell 30 by snap-fit ​​connection or by fasteners such as bolts, or can be an integral structure with the first shell 20 or the second shell 30.

[0092] The panel 70 can display information such as the current lighting of the energy storage power supply 1 and the temperature of the battery cell 10. The panel 70 can also include a port for connecting the energy storage power supply 1 to an electrical device or a charging device, so that the battery cell 10 can charge the electrical device or the charged device. The panel 70 can be connected to the first shell 20 and the second shell 30 by snap-fit ​​connection or by fasteners such as bolts, or can be an integral structure with the first shell 20 or the second shell 30.

[0093] See also Figure 2 and Figure 8 In some embodiments, the energy storage power supply 1 includes a main board 80, which is disposed in the accommodating cavity 71 and located on one side of the battery cell 10. The main board 80 is connected to the panel 70 and is electrically connected to the battery cell 10.

[0094] In this way, the mainboard 80 can obtain user instructions through the user input port to control the charging or discharging process of the battery cell 10 .

[0095] Specifically, the external connector can be inserted through the panel 70 and plugged into the main board 80, and the panel 70 can isolate the main board 80 to reduce the risk of electric shock to the user. The main board 80 can be connected to the side of the panel 70 facing the battery cell 10 by snap-fitting or by fasteners such as screws, that is, the main board 80 is located between the panel 70 and the battery cell 10. The main board 80 is electrically connected to the battery cell 10, which means that the main board 80 and the battery cell 10 can be connected through a physical line such as PCB copper foil or wire that can transmit electrical signals.

[0096] See also Figure 2 and Figure 8 In some embodiments, the inverter 90 is disposed on one side of the battery cell 10 , and the inverter 90 is electrically connected to the main board 80 .

[0097] In this way, the inverter 90 can be used to convert the direct current generated by the battery cell 10 into alternating current for use by electrical devices.

[0098] Specifically, the inverter 90 can be arranged on the side of the battery cell 10 away from the main board 80, or can be arranged between the main board 80 and the battery cell 10. The inverter 90 is electrically connected to the main board 80, which means that the inverter 90 and the main board 80 can be connected through a physical line that can transmit electrical signals, such as PCB copper foil or wires.

[0099] See also Figure 2 and Figure 8 In some embodiments, the energy storage power source 1 includes a battery management system 100, which is disposed in the accommodating cavity 71 and located on one side of the battery cell 10, and the battery management system 100 is electrically connected to the battery cell 10.

[0100] In this way, the battery management system 100 can be used to monitor status information of the battery cell 10, such as current, temperature or voltage, to prevent the battery cell 10 from being overcharged, over-discharged or short-circuited, so as to protect the battery cell 10 from damage.

[0101] Specifically, the battery management system 100 can be disposed between the decorative cover 60 and the battery cell 10, or between the main board 80 and the battery cell 10. The battery management system 100 is electrically connected to the battery cell 10, which means that the battery management system 100 and the battery cell 10 can be connected through a physical line such as PCB copper foil or a wire that can transmit an electrical signal.

[0102] In one embodiment, the battery management system 100 is located between the battery cell 10 and the inverter 90 .

[0103] See also Figure 2 and Figure 8 In some embodiments, the energy storage power supply 1 includes a handle 110 , and the handle 110 is rotatably disposed on the second shell 30 .

[0104] In this way, the energy storage power supply 1 is convenient to lift, labor-saving and practical.

[0105] Specifically, the handle 110 may be U-shaped, and the handle 110 may be folded and stored in a groove formed by the second housing 30. The handle 110 may be integrally formed of a hollow aluminum material to reduce the weight of the energy storage power supply 1 while ensuring the supporting strength.

[0106] See also Fig.11 and Fig.12 , the assembly method of the energy storage power supply 1 of the embodiment of the present application includes:

[0107] S10, inserting the first ends 13 of the plurality of battery cells 10 into the through holes 22 formed by the first limiting portion 21 located on the inner wall of the first shell 20, wherein the first ends 13 of the battery cells 10 are provided with the positive electrode 11 and the negative electrode 12;

[0108] S20, connecting the positive electrode 11 of the battery cell 10 and the negative electrode 12 of the adjacent battery cell 10 by using the busbar 40;

[0109] S30 , inserting the second end 14 of the battery cell 10 into the embedding groove 32 formed by the second limiting portion 31 located on the inner wall of the second housing 30 .

[0110] In the above-mentioned assembly method of the energy storage power supply 1, the assembly steps of the energy storage power supply 1 are reduced, and the assembly efficiency is improved.

[0111] Specifically, in step S10, the first ends 13 of the plurality of battery cells 10 may be inserted into the through holes 22 in multiple times, with 1, 2, 3 or more first ends 13 of the battery cells 10 inserted each time, or the plurality of battery cells 10 may be arranged according to preset requirements first, and then the first ends 13 of the plurality of arranged battery cells 10 may be inserted into the through holes 22 at the same time.

[0112] In step S20, the busbar 40 may be placed at a position corresponding to the positive electrode 11 and the negative electrode 12 according to preset requirements, and then the busbar 40 may be fixed by a jig, and finally the busbar 40 may be welded to the positive electrode 11 and the negative electrode 12 by laser welding. The positive electrode 11 and the negative electrode 12 are located at the same end of the battery cell 10, which may reduce the welding space of the battery cell 10 and is conducive to miniaturization.

[0113] In step S30 , after the second housing 30 is mounted on the second end 14 of the battery cell 10 , the second housing 30 and the first housing 20 may be fixed together by screws.

[0114] See also Fig.12 In some embodiments, after connecting the positive electrode 11 of the battery cell 10 and the negative electrode 12 of the adjacent battery cell 10 using the busbar 40, the method includes:

[0115] The cover plate 50 is fixed to a side of the first housing 20 facing away from the second housing 30 , so that the cover plate 50 covers the busbar 40 .

[0116] Specifically, the cover plate 50 may be placed in the mounting hole 25 first, and then the cover plate 50 may be fixed to the first housing 20 by means of fasteners such as screws. Before the cover plate 50 is placed in the mounting hole 25, a sealing ring may be bonded to the cover plate 50 or to the side wall forming the mounting hole 25.

[0117] See also Fig.12 In some embodiments, before inserting the second end 14 of the battery cell 10 into the embedding groove 32 formed by the second limiting portion 31 located on the inner wall of the second housing 30, the method includes:

[0118] The decorative cover 60 and the panel 70 are connected to the first shell 20, so that the first shell 20, the decorative cover 60 and the panel 70 form a receiving cavity 71, and the receiving cavity 71 is used to accommodate the battery cell 10 and the main board 80, and the main board 80 is located on one side of the battery cell 10;

[0119] The main board 80 is electrically connected to the battery cell 10 and the inverter 90 .

[0120] Specifically, the decorative cover 60 may be connected to the first shell 20 first, and then the panel 70 may be connected to the first shell 20, and finally the main board 80 may be electrically connected to the battery cell 10 and the inverter 90; the panel 70 may be connected to the first shell 20 first, and then the decorative cover 60 may be connected to the first shell 20, and finally the main board 80 may be electrically connected to the battery cell 10 and the inverter 90; the panel 70 may be connected to the first shell 20 first, and then the main board 80 may be electrically connected to the battery cell 10 and the inverter 90, and finally the decorative cover 60 may be connected to the first shell 20.

[0121] Furthermore, the mainboard 80 may be electrically connected to the battery cell 10 first, and then the mainboard 80 may be electrically connected to the inverter 90 ; or the mainboard 80 may be electrically connected to the inverter 90 first, and then the mainboard 80 may be electrically connected to the battery cell 10 .

[0122] In one embodiment, the panel 70 may be connected to the first shell 20 first, and then the main board 80 may be electrically connected to the battery cell 10, and then the decorative cover 60 may be connected to the first shell 20, and finally the main board 80 may be electrically connected to the inverter 90; or the panel 70 may be connected to the first shell 20 first, and then the main board 80 may be electrically connected to the inverter 90, and then the decorative cover 60 may be connected to the first shell 20, and finally the main board 80 may be electrically connected to the battery cell 10.

[0123] See also Fig.12 In some embodiments, before connecting the decorative cover 60 and the panel 70 to the first housing 20, the method includes:

[0124] The main board 80 is connected to the panel 70 .

[0125] Specifically, the main board 80 and the panel 70 may be connected by fasteners such as bolts, or may be connected by snap-fitting. The main board 80 may be disposed on a side of the panel 70 facing the battery cell 10 .

[0126] See also Fig.12 In some embodiments, before connecting the decorative cover 60 and the panel 70 to the first housing 20, the method includes:

[0127] The inverter 90 is disposed in the accommodating cavity 71 so that the inverter 90 is located on one side of the battery cell 10;

[0128] The inverter 90 is electrically connected to the battery cell 10 .

[0129] Specifically, the inverter 90 can be placed at a preset position in the accommodating cavity 71, and then the inverter 90 and the first housing 20 are connected and fixed, and finally the inverter 90 and the battery cell 10 are electrically connected. The inverter 90 and the first housing 20 can be connected by fasteners such as bolts, or by snap-fitting.

[0130] See also Fig.12 In some embodiments, before connecting the decorative cover 60 and the panel 70 to the first housing 20, the method includes:

[0131] The battery management system 100 is disposed in the accommodating cavity 71 so that the battery management system 100 is located on one side of the battery cell 10;

[0132] The battery management system 100 is electrically connected to the battery cell 10 .

[0133] Specifically, the battery management system 100 can be placed at a preset position first, then the battery management system 100 is connected and fixed to the first housing 20, and finally the battery management system 100 is electrically connected to the battery cell 10. The battery management system 100 and the battery cell 10 can be connected by fasteners such as bolts, or by snap-fitting.

[0134] The inverter 90 may be firstly arranged in the accommodating cavity 71, and then the battery management system 100 may be arranged in the accommodating cavity 71; or the battery management system 100 may be firstly arranged in the accommodating cavity 71, and then the inverter 90 may be arranged in the accommodating cavity 71. The installation order of the inverter 90 and the battery management system 100 is not limited here.

[0135] See also Fig.12 In one embodiment, the assembly method of the energy storage power supply 1 is as follows: first, the first ends 13 of the plurality of battery cells 10 are inserted into the through holes 22 formed by the first limiting portion 21 located on the inner wall of the first shell 20; then, the positive electrode 11 of the battery cell 10 and the negative electrode 12 of the adjacent battery cell 10 are connected by using the bus 40; then, the cover plate 50 is fixed on the first shell 20, and the cover plate 50 covers the bus 40; then, the inverter 90 and the battery management system 100 are installed on the first shell 20, and the battery management system 100 is electrically connected to the battery cell 10; then, the main board 80 is connected to the panel 70, and then the decorative cover 60 and the panel 70 are connected to the first shell 20, and the main board 80 is electrically connected to the battery cell 10 and the inverter 90, and finally, the second end 14 of the battery cell 10 is inserted into the embedding groove 32 formed by the second limiting portion 31 located on the inner wall of the second shell 30, and the first shell 20 and the second shell 30 are connected and fixed.

[0136] In the description of this specification, the description with reference to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0137] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An energy storage power supply, characterized in that: include: A plurality of battery cells, each of which comprises a positive electrode and a negative electrode, wherein the positive electrode and the negative electrode are arranged at a first end of the battery cell; A housing, wherein the housing is provided with a housing cavity, the battery cell is fixed in the housing cavity, the housing comprises a first housing and a second housing, the inner wall of the first housing is provided with a first limiting portion, the first limiting portion is formed with a through hole, the first end of the battery cell is inserted into the through hole, the second housing is arranged opposite to the first housing, the inner wall of the second housing is provided with a second limiting portion, the second limiting portion is formed with an embedding groove, the second end of the battery cell is inserted into the embedding groove; A bus bar, located on a side of the first shell away from the second shell, the bus bar connecting the positive electrode of the battery cell and the negative electrode of the adjacent battery cell; and An inverter is fixed in the accommodating cavity and electrically connected to the battery core.

2. The energy storage power supply according to claim 1, characterized in that: The number of the through holes and the embedding grooves are both multiple, and the multiple through holes and the multiple embedding grooves correspond one-to-one to the multiple battery cells.

3. The energy storage power supply according to claim 1, characterized in that: The first limiting portion and the first shell are an integrated structure.

4. The energy storage power supply according to claim 1, characterized in that: The second limiting portion is cylindrical, and the second limiting portion and the second shell are an integral structure.

5. The energy storage power supply according to claim 1, characterized in that: The energy storage power supply comprises a cover plate, and the cover plate covers the bus bar.

6. The energy storage power supply according to claim 1, characterized in that: The energy storage power supply includes a decorative cover and a panel, the decorative cover and the panel are arranged between the first shell and the second shell, and are connected to the first shell and the second shell, the first shell, the second shell, the decorative cover and the panel form the accommodating cavity, and the decorative cover is provided with a ventilating hole connected to the accommodating cavity.

7. The energy storage power supply according to claim 6, characterized in that: The energy storage power supply includes a main board, which is arranged in the accommodating cavity and located on one side of the battery cell. The main board is connected to the panel and electrically connected to the battery cell.

8. The energy storage power supply according to claim 1, characterized in that: The inverter is arranged on one side of the battery core, and the inverter is electrically connected to the mainboard.

9. The energy storage power supply according to claim 1, characterized in that: The energy storage power source includes a battery management system, which is arranged in the accommodating cavity and located on one side of the battery cell, and the battery management system is electrically connected to the battery cell.

10. A method for assembling an energy storage power supply, characterized in that: The method comprises: Inserting the first ends of the plurality of battery cells into the through holes formed by the first limiting portion on the inner wall of the first shell, wherein the first ends of the battery cells are provided with a positive electrode and a negative electrode; Connecting the positive electrode of the battery cell and the negative electrode of the adjacent battery cell by using a busbar; The second end of the battery core is inserted into an embedding groove formed by a second limiting portion located on the inner wall of the second shell.

11. The method according to claim 10, characterized in that After connecting the positive electrode of the battery cell and the negative electrode of the adjacent battery cell by using a bus bar, the method includes: The cover plate is fixed to a side of the first shell facing away from the second shell, so that the cover plate covers the busbar.

12. The method according to claim 10, characterized in that Before inserting the second end of the battery cell into the embedding groove formed by the second limiting portion located on the inner wall of the second shell, the method includes: Connecting the decorative cover and the panel to the first shell, so that the first shell, the decorative cover and the panel form a receiving cavity, the receiving cavity is used to accommodate the battery cell and the main board, and the main board is located on one side of the battery cell; The mainboard is electrically connected to the battery cell and the inverter.

13. The method according to claim 12, characterized in that Before connecting the decorative cover and the panel to the first housing, the method includes: The main board is connected to the panel.

14. The method according to claim 12, characterized in that Before connecting the decorative cover and the panel to the first housing, the method includes: The inverter is arranged in the accommodating cavity so that the inverter is located on one side of the battery core; The inverter is electrically connected to the battery cell.

15. The method according to claim 12, characterized in that Before connecting the decorative cover and the panel to the first housing, the method includes: Disposing a battery management system in the accommodation cavity so that the battery management system is located on one side of the battery cell; The battery management system is electrically connected to the battery cell.

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