Battery pack, electric equipment and assembling method of battery pack

Abstract

The invention relates to a battery pack, electric equipment and an assembling method of the battery pack, the battery pack comprises a shell, a battery cell assembly, a panel, a conductive part and a connector, and the shell is provided with an accommodating space and an opening communicated with the accommodating space. The battery cell assembly is arranged in the accommodating space. The panel is fixed on the shell, and the panel is exposed out of the shell through the opening. And the conductive part is arranged in the accommodating space, is electrically connected to the battery cell assembly, has flexibility and is arranged in a redundant manner. The connector is fixed on the panel, and the connector is connected to the conductive piece and exposed out of the shell. According to the battery pack, the battery pack, the conductive part and the connector are connected, the panel is arranged and serves as a bridge for connecting the conductive part and the connector, the battery pack is assembled in the mode that the panel is fixed to the shell, the conductive part does not need to be pulled out of the shell and then connected with the connector, and the safety of mounting or dismounting of the battery pack is high.

Description

Technical Field

[0001] The embodiments of this application relate to the field of energy storage technology. Background Technology

[0002] Battery packs refer to various devices capable of storing electrical energy. They play a crucial role in power systems, especially in areas such as renewable energy grid integration, grid frequency regulation, peak shaving and valley filling, and emergency backup. In some applications, battery packs consist of a casing and battery cell assemblies housed within the casing. Typically, the battery cell assemblies are connected to external devices outside the casing via conductive components and connectors. However, in current technologies, the installation between conductive components and connectors requires improvement. Summary of the Invention

[0003] In view of the above problems, this application provides a battery pack, an electrical device, and a method for assembling the battery pack, which overcomes or at least partially solves the problem of poor operational safety during the installation and disassembly of the conductive components and connectors.

[0004] According to one aspect of the embodiments of this application, a battery pack is provided, including a housing, a cell assembly, a panel, a conductive element, and a connector. The housing has a receiving space and an opening communicating with the receiving space. The cell assembly is disposed in the receiving space. The panel is fixed to the housing, and the panel is exposed outside the housing through the opening. The conductive element is disposed in the receiving space and electrically connected to the cell assembly. The conductive element is flexible and redundantly arranged. The connector is fixed to the panel, connected to the conductive element, and exposed outside the housing. Through this battery pack, the conductive element is connected to the connector. Through the arrangement of the panel, the panel acts as a bridge connecting the conductive element and the connector. The battery pack is assembled by fixing the panel to the housing, eliminating the need to pull the conductive element out of the housing before connecting it to the connector. The battery pack provided by this application has high safety during installation or disassembly.

[0005] In one or more of the above optional embodiments, the housing includes a bottom wall and an upper housing, which are connected to form a receiving space; an opening is located in the upper housing; the panel and connector are configured such that after the bottom wall and upper housing are connected, the panel is moved from the receiving space to the opening through the opening and fixed to the upper housing. Before the panel is moved to the opening, the panel and the bottom wall can be in a connected state, the positions of the panel, connector, and conductive components are relatively fixed, and the electrical connection between the three is effectively constrained, reducing the risk of collision, interference, and short circuit with other devices.

[0006] In one or more of the above optional embodiments, the panel is provided with a through hole, which includes a first hole and a second hole that communicate with each other; the battery pack includes a fastener, which includes a connecting portion and a head, the connecting portion being fixed to the bottom wall, the head being larger than the second hole, and the connecting portion being smaller than the first hole; at least a portion of the head is located outside the first hole; the fastener is fixed to the second hole. When the connecting portion is located in the first hole, the connecting portion is smaller than the first hole, so that the connecting portion moves in the first hole during the movement of the panel. The head is at least partially located outside the first hole, and the head can restrict the position of the panel; in front of the upper housing, the head can fix the panel to the bottom wall.

[0007] In one or more of the above optional embodiments, the panel includes a horizontal portion and a vertical portion for connection. A through hole is provided in the horizontal portion, and the vertical portion is fixed to the upper housing. The vertical portion is exposed outside the housing through an opening. The connector is fixed to the vertical portion. The through hole in the horizontal portion is used to fix the panel to the bottom wall of the housing, and the vertical portion is used to install the connector. The functional interference between the horizontal and vertical portions is small, which makes the connection between the connector and the panel reliable.

[0008] In one or more of the above optional embodiments, the panel includes a stepped portion connecting the horizontal and vertical portions. The stepped portion provides at least the functions of vibration reduction and reduced assembly difficulty.

[0009] In one or more of the above optional embodiments, the vertical portion includes a fixed portion and a protrusion. The fixed portion is fixed to the upper housing and located inside the upper housing, while the protrusion is exposed outside the housing through an opening. The fixed portion and the protrusion provide support for the connector, reducing the risk of loosening or detachment during use. The fixed portion facilitates positioning during assembly between the panel and the housing, reducing assembly difficulty.

[0010] In one or more of the above optional embodiments, the protrusion protrudes from the housing, reducing the assembly gap between the panel and the housing, reducing the risk of water and dust in the air entering the housing through the assembly gap, and improving the service life and stability of the battery pack.

[0011] In one or more of the above optional embodiments, the opening is hole-shaped. Through the design of the hole-shaped opening, after the panel is separated from the bottom wall, the panel is lifted to the opening to achieve the fixation of the panel and the upper shell.

[0012] In one or more of the above optional embodiments, the upper housing includes a top wall, a front wall, a first side wall, and a second side wall that are interconnected. The top wall, front wall, first side wall, and second side wall are configured to be interconnected and fixed to the bottom wall. The top wall and bottom wall are arranged opposite each other along a first direction, with an opening provided in the front wall. The first side wall and second side wall are arranged opposite each other along a second direction, with the first direction perpendicular to the second direction. By providing the opening in the front wall, it is convenient for the operator to observe and adjust the position of the panel when assembling it into the housing. Similarly, it is also convenient for the operator to disassemble the panel.

[0013] In one or more of the above optional embodiments, the upper housing further includes a rear wall, which is disposed opposite to the front wall along a third direction, the third direction being perpendicular to the first direction and the second direction, respectively. The first side wall and the second side wall are respectively connected to the two sides of the rear wall. Through the arrangement of the rear wall, the front wall, the rear wall, the first side wall, the second side wall, and the bottom wall enclose the aforementioned receiving space, thereby achieving protection for the battery cell assembly.

[0014] In one or more of the above optional embodiments, the front wall of the upper housing includes a body portion and a protrusion. The protrusion is recessed outward from the body portion of the housing and surrounds the opening. A gap exists between the protrusion and the fixing portion of the panel. The battery pack includes a seal disposed in the gap, and the fixing portion is fixed to the protrusion, reducing the risk of displacement due to external impact. This design makes the connection between the panel and the housing more robust, effectively improving the overall safety and lifespan of the battery pack. The seal reduces the risk of external moisture and dust entering the housing, improving the battery pack's lifespan and reliability.

[0015] In one or more of the above optional embodiments, the conductive element includes one or more of copper busbars, aluminum busbars, and conductive wires.

[0016] According to one aspect of the embodiments of this application, an electrical device is provided, including the battery pack described above.

[0017] According to one aspect of the embodiments of this application, a method for assembling the aforementioned battery pack is provided, comprising: fixing a connector to a panel; placing a cell assembly in a receiving space; moving the panel to the opening through the opening, stretching a conductive element to make the panel fit against the housing, and then fixing the panel to the housing. With this method, the conductive element and the connector are first connected, and the connector is fixed to the panel. The panel acts as a bridge connecting the conductive element and the connector. The battery pack is assembled by pulling the panel from the receiving space of the housing to the opening of the housing, and then fixing the panel to the housing. This eliminates the need to pull the conductive element out of the housing before connecting it to the connector, thus providing higher safety during assembly or disassembly of the battery pack provided by this application.

[0018] In one or more of the above optional embodiments, the housing includes a bottom wall and an upper housing, the upper housing being provided with an opening, and the step of placing the battery cell assembly in the receiving space includes: fixing the battery cell assembly and the panel to the bottom wall; and fixing the upper housing to the bottom wall.

[0019] In one or more of the above optional embodiments, before the step of fixing the upper housing to the bottom wall, the method includes: sliding the panel to the bottom wall to facilitate the installation of the panel and the housing.

[0020] Additional aspects and advantages of the embodiments of this application will be described, shown, or illustrated in part by way of implementation of the embodiments of this application in the following description. Attached Figure Description

[0021] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0022] Figure 1 This is a schematic diagram of the battery pack provided in an embodiment of this application.

[0023] Figure 2 This is an exploded schematic diagram of the battery pack provided in an embodiment of this application.

[0024] Figure 3 The embodiments of this application provide the following: Figure 1 A partial sectional view of P.

[0025] Figure 4 This is a schematic diagram of a battery pack with the upper casing removed, as provided in an embodiment of this application.

[0026] Figure 5 This is a schematic diagram of another state of the battery pack with the upper casing removed, as provided in the embodiments of this application.

[0027] Figure 6 This is a schematic diagram of one orientation of the panel provided in an embodiment of this application.

[0028] Figure 7 This is a partial schematic diagram of the battery pack display panel and connector provided in an embodiment of this application.

[0029] Figure 8 This is a schematic diagram of the panel provided in another embodiment of this application.

[0030] Figure 9 This is a schematic diagram of one direction of the upper housing provided in an embodiment of this application.

[0031] Figure 10This is a schematic diagram of the upper housing provided in an embodiment of this application from another direction.

[0032] Figure 11 This is a schematic diagram of the battery pack assembly process provided in the embodiments of this application; Figure 12 This is a flowchart illustrating one implementation of placing the battery cell assembly in the housing, as provided in an embodiment of this application.

[0033] The labels in the attached diagram are as follows: 100. Battery pack; 10. Housing; 20. Battery cell assembly; 30. Panel; 40. Conductive component; 50. Connector; 60. Fastener; 101. Containment space; 102. Opening; 11. Bottom wall; 12. Upper shell; 120. Top wall; 121. Front wall; 122. First side wall; 123. Second side wall; 124. Rear wall; 1210. Main body; 1211. Protrusion; 31. Horizontal section; 32. Vertical section; 33. Stepped section; 321. Fixed part; 322. Protruding part; 3221. Mounting holes; 311, Through hole; 3111, First hole; 3112, Second hole; 61. Connecting part; 62. Head; X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0034] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only.

[0035] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0036] Please see Figure 1 and Figure 2 This application provides a battery pack 100, which includes a housing 10 and a cell assembly 20. The housing 10 has a receiving space 101 and an opening 102 communicating with the receiving space 101. The cell assembly 20 is disposed in the receiving space 101.

[0037] The battery pack 100 includes a panel 30, a conductive element 40, and a connector 50. The panel 30 is fixed to the housing 10 and is exposed outside the housing 10 through an opening 102. The conductive element 40 is disposed in the receiving space 101 and is electrically connected to the cell assembly 20. The conductive element 40 is flexible and redundantly arranged.

[0038] The conductive element 40 has flexibility and redundancy, meaning that during the process of pulling the panel 30 from the receiving space 101 to the opening 102 of the housing 10, the conductive element 40 can maintain sufficient flexibility and redundant length, reducing the risk of damage or failure caused by pulling, and also reducing the risk of poor contact or detachment between the conductive element 40 and the battery cell assembly 20 or connector 50. For example, if the conductive element 40 is a wire harness, its length is relatively long with bending redundancy, and the conductive element 40 can be moved.

[0039] Optionally, the conductive element 40 includes one or more of a flexible copper busbar, a flexible aluminum busbar, or a wire harness. Optionally, the conductive element 40 includes a flexible copper busbar. The flexible copper busbar can be integrated from multiple layers of thin copper sheets stacked together, and can be stretched and deformed during the movement of the panel 30. In other embodiments, the conductive element 40 includes a wire harness.

[0040] Connector 50 is fixed to panel 30. Connector 50 is fixed to the portion of panel 30 exposed outside housing 10, and connector 50 is connected to conductive element 40, which is also exposed outside housing 10. Through this battery pack 100, conductive element 40 is connected to connector 50. Through the arrangement of panel 30, panel 30 acts as a bridge connecting conductive element 40 and connector 50. Assembly of battery pack 100 is achieved by fixing panel 30 to housing 10.

[0041] The battery cell assembly 20 includes multiple battery cell units, which are connected in parallel or series to a conductive element 40. The conductive element 40 is used to electrically connect to external devices via a connector 50. Connector 50 is configured for power and / or signal transmission with external devices. Connector 50 can be selected appropriately based on the actual application scenario. For example, connector 50 can be a USB interface, HDMI interface, or other universal interface to meet the user's needs in different scenarios.

[0042] Please see Figure 2 and Figure 6The panel 30 serves as a bridge connecting the conductive element 40 and the connector 50. The panel 30 is provided with several mounting holes 3221 for assembling the connector 50, enabling the connector 50 to pass through the panel 30, electrically connect to the conductive element 40, and be exposed outside the housing 10. The number of mounting holes 3221 can be flexibly adjusted according to the number of connectors 50.

[0043] Please see Figure 2 The housing 10 includes a bottom wall 11 and an upper housing 12, which are connected to form a receiving space 101. An opening 102 is located in the upper housing 12. The panel 30 is configured such that after the bottom wall 11 and the upper housing 12 are connected, the panel 30 is moved from the receiving space 101 to the opening 102 through the opening 102 and fixed to the upper housing 12. Before the panel 30 is moved to the opening 102, the panel 30 can be connected to the bottom wall 11. The positions of the panel 30, connector 50, and conductive element 40 are relatively fixed, and the electrical connection between the three is constrained, reducing the risk of collision, interference, and short circuit with other devices.

[0044] Please see Figure 4 and Figure 5 The panel 30 is provided with a through hole 311, which includes a first hole 3111 and a second hole 3112 that are connected. The battery pack 100 includes a fastener 60, which includes a connecting part 61 and a head 62. The connecting part 61 is fixed to the bottom wall 11, the head 62 is larger than the second hole 3112, the connecting part 61 is smaller than the second hole 3112, and the head 62 is smaller than the first hole 3111; the fastener 60 is fixed to the second hole 3112.

[0045] Please see Figure 5 , Figure 5 The display shows that the battery cell assembly 20 has been installed on the bottom wall 11, and the upper housing 12 has not been connected to the bottom wall 11. Figure 5 In the middle, the connecting part 61 is located in the first hole 3111. The connecting part 61 is smaller than the first hole 3111, so that the connecting part 61 moves in the first hole 3111 during the movement of the panel 30. The head 62 is at least partially located outside the first hole 3111. The head 62 can restrict the position of the panel 30. In front of the upper housing 12, the head 62 can fix the panel 30 to the bottom wall 11.

[0046] For example, please refer to Figure 5 Part of the head 62 is outside the first hole 3111, and part of it is outside the first hole 3111. In other embodiments, the head 62 may be entirely outside the first hole 3111.

[0047] Please see Figure 4 , Figure 4The display shows the state where the battery cell assembly 20 is installed on the bottom wall 11, and the upper housing 12 is connected to the bottom wall 11. This is for easy observation. Figure 5 Upper housing 12 is not shown. Fastener 60 is secured to the second hole 3112.

[0048] For example, please refer to Figure 4 The connecting part 61 is engaged in the second hole 3112, and the head 62 is located outside the first hole 3111. Optionally, the head 62 is engaged in the panel 30. Optionally, there is a gap between the panel 30 and the head 62, for example, a gap of less than 1 mm.

[0049] For example, please refer to Figure 4 The head 62 is larger than the second hole 3112.

[0050] In another example, part of the head 62 is engaged with the first hole 3111, and part of the connecting part 61 is engaged with the second hole 3112.

[0051] As an example, the through hole 311 is a gourd-shaped hole, the first hole 3111 is a circular hole of the gourd shape, and the second hole 3112 is an oblong hole of the gourd shape. The specific implementation of the through hole 311 is not limited to the above-mentioned gourd-shaped hole form, and can be other shapes, as long as it can restrict the head 62 of the fastener 60 by the second hole 3112, and allow the head 62 of the fastener 60 to pass through the first hole 3111 to contact the restriction on the panel 30.

[0052] The fastener 60 can be a screw, bolt, T-bolt, etc.

[0053] The connection or detachment of panel 30 from bottom wall 11 is not limited to the above solution and can take other forms. For example, panel 30 can be connected to bottom wall 11 by a locking element (not shown in the figure). The locking element can be a buckle, screw, etc., to ensure the reliability of the connection between panel 30 and bottom wall 11 and to facilitate the detachment of panel 30 from bottom wall 11 so that panel 30 can be pulled to opening 102 of housing 10 and panel 30 can be fixed to upper housing 12.

[0054] Please see Figure 6 and Figure 7 In some embodiments, the panel 30 includes a horizontal portion 31 and a vertical portion 32 connected together. A through hole 311 is provided in the horizontal portion 31, and the vertical portion 32 is fixed to the upper housing 12. The vertical portion 32 is exposed outside the housing 10 through an opening 102. The connector 50 is fixed to the vertical portion 32. The through hole 311 is used to fix the panel 30 to the bottom wall 11. The vertical portion 32 realizes the installation of the connector 50. The functional interference between the horizontal portion 31 and the vertical portion 32 is small, making the connection between the connector 50 and the panel 30 more reliable.

[0055] Specifically, the vertical portion 32 being exposed outside the housing 10 through the opening 102 can be implemented in such a way that part or all of the vertical portion 32 is exposed outside the housing 10 through the opening 102.

[0056] Please see Figure 6 In some embodiments, the panel 30 includes a stepped portion 33 connecting the horizontal portion 31 and the vertical portion 32. The stepped portion 33 provides at least the functions of shock absorption and reduced assembly difficulty.

[0057] Please see Figure 8 and combined Figure 7 In some embodiments, the vertical portion 32 includes a fixing portion 321 and a protrusion 322. The protrusion 322 protrudes outward from the housing 10 relative to the fixing portion 321. The fixing portion 321 is fixed to the upper housing 12 and located inside the upper housing 12. The protrusion 322 is exposed outside the housing 10 through the opening 102. With the fixing portion 321 and the protrusion 322, the protrusion 322 can support the connector 50, reducing the risk of the connector 50 loosening or falling off during use. The fixing portion 321 facilitates the positioning of the panel 30 and the housing 10 during assembly, reducing the assembly difficulty.

[0058] In some embodiments, the protrusion 322 protrudes from the upper housing 12 of the housing 10, reducing the assembly gap between the protrusion 322 and the upper housing 12, reducing the risk of water and dust in the air entering the interior of the housing 10 through the assembly gap, and improving the service life and stability of the battery pack 100.

[0059] Please see Figure 2 The opening 102 is perforated. Through the design of the perforated opening, after the panel 30 is separated from the bottom wall 11, the panel 30 is lifted to the opening 102, thereby fixing the panel 30 to the upper shell 12. The shape of the perforation includes, but is not limited to, square holes, round holes, etc.

[0060] Please see Figure 9 and Figure 10 and reference Figure 7 The upper housing 12 includes a top wall 120, a front wall 121, a first side wall 122, and a second side wall 123 that are interconnected. The top wall 120, front wall 121, first side wall 122, and second side wall 123 are configured to be interconnected and fixed to the bottom wall 11. The top wall 120 and the bottom wall 11 are arranged opposite each other along a first direction X, and the first side wall 122 and the second side wall 123 are arranged opposite each other along a second direction Y. The first direction X is perpendicular to the second direction Y. An opening 102 is provided on the front wall 121. By providing the opening 102 on the front wall 121, it is convenient for the operator to observe and adjust the position of the panel 30 when assembling the panel 30 into the housing 10. Similarly, it is also convenient for the operator to disassemble the panel 30.

[0061] The front wall 121 is the position in front of the operator, and the wall that the operator faces when looking directly at the panel 30 is the front wall 121.

[0062] In one example, the upper housing 12 further includes a rear wall 124, which is disposed opposite to the front wall 121 along a third direction Z. The third direction Z is perpendicular to the first direction X and the second direction Y, respectively. The first side wall 122 and the second side wall 123 are respectively connected to the two sides of the rear wall 124, and the rear wall 124 is connected to the top wall 120. Through the arrangement of the rear wall 124, the front wall 121, the rear wall 124, the first side wall 122, the second side wall 123, and the bottom wall 11 enclose the aforementioned receiving space 101, thereby achieving protection for the battery cell assembly 20 (in conjunction with...). Figure 2 (As shown).

[0063] Please see Figure 3 and combined Figure 7 The front wall 121 includes a body portion 1210 and a protrusion 1211. The protrusion 1211 is recessed outward from the housing 10 relative to the body portion 1210 and surrounds the opening 102. A gap s exists between the protrusion 1211 and the fixing portion 321 of the panel 30. The battery pack 100 includes a seal (not shown) disposed in the gap s. The fixing portion 321 is fixed to the protrusion 1211, reducing the risk of displacement due to external impact. Through this design, the connection between the panel 30 and the front wall 121 is more robust, effectively improving the overall safety and service life of the battery pack 100. The seal reduces the risk of external moisture and dust entering the housing 10, improving the service life and reliability of the battery pack 100. The gap s serves as the seal, and the gap s and the seal work together to strengthen the seal.

[0064] This application provides an example of an electrical device, which includes a load and the aforementioned battery pack 100. The specific structure and function of the battery pack 100 can be found in the above embodiments and will not be repeated here. The battery pack 100 is connected to the load and is used to supply power to the load.

[0065] This application provides a method for assembling the battery pack 100 described above. Please refer to [link to relevant documentation]. Figure 11 and combination Figure 1 and Figure 2 The assembly process of battery pack 100 includes: Step S10: Fix connector 50 to panel 30.

[0066] Step S20: Place the battery cell assembly 20 in the housing space 101.

[0067] In step S30, the panel 30 is moved to the opening 102 so that the panel 30 fits against the housing 10, and then the panel 30 is fixed to the housing 10.

[0068] Among them, the conductive element 40 is flexible and redundantly arranged in space, which can ensure the reliability of the conductive element 40 itself when the panel 30 is pulled open to the opening 102, as well as the reliability of the electrical connection between the conductive element 40, the battery cell assembly 20, and the connector 50.

[0069] As an example, before the cell assembly 20 is placed in the housing space 101, the conductive element 40 is connected to the connector 50.

[0070] As an example, in step S30, the connecting part 61 is fixed in the second hole 3112.

[0071] The housing 10 includes a bottom wall 11 and an upper housing 12. When the upper housing 12 is provided with an opening 102, please refer to [reference needed]. Figure 12 and combination Figure 2 Step S20 specifically includes: In step S21, the battery cell assembly 20 and the panel 30 are fixed to the bottom wall 11. At this time, the connecting part 61 is in the first hole 3111.

[0072] The specific methods for fixing the battery cell assembly 20 to the bottom wall 11 can include adhesive bonding, screw fixing, or snap-fit ​​connection, ensuring that the battery cell assembly 20 is stable and does not move. Specifically, the appropriate fixing method between the battery cell assembly 20 and the bottom wall 11 can be selected according to actual needs and scenarios.

[0073] Step S22: Fix the upper housing 12 to the bottom wall 11.

[0074] The upper housing 12 can be fixed to the bottom wall 11 using methods such as screw fixing, snap-fit ​​connection, or adhesive bonding to achieve a stable connection between the upper housing 12 and the bottom wall 11. Screw fixing offers high connection strength and stability, and facilitates disassembly and maintenance; snap-fit ​​connection simplifies the assembly process and improves assembly efficiency; adhesive bonding provides a more uniform stress distribution. In practical applications, the appropriate method can be selected to fix the upper housing 12 to the bottom wall 11 according to specific needs and scenarios.

[0075] It should be noted that while preferred embodiments of this application are provided in the specification and accompanying drawings, this application can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this application; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this application. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this application's specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A battery pack, characterized in that, include: The housing has a receiving space and an opening communicating with the receiving space; The battery cell assembly is disposed in the receiving space; A panel, fixed to the housing, is exposed outside the housing through the opening; A conductive element is disposed in the receiving space, the conductive element is electrically connected to the battery cell assembly, the conductive element is flexible, and the conductive element is redundantly disposed. A connector is fixed to the panel, the connector is connected to the conductive element, and is exposed outside the housing.

2. The battery pack according to claim 1, characterized in that, The housing includes a bottom wall and an upper housing, the bottom wall and the upper housing being connected to form the receiving space; the opening is located in the upper housing; The panel and the connector are configured such that after the bottom wall and the upper housing are connected, the panel is moved from the receiving space through the opening and fixed to the upper housing.

3. The battery pack according to claim 2, characterized in that, The panel is provided with a through hole, the through hole including a first hole and a second hole that are connected. The battery pack includes a fastener, which includes a connecting portion and a head. The connecting portion is fixed to the bottom wall, the head is larger than the second hole, and the connecting portion is smaller than the first hole. At least a portion of the head is located outside the first hole, and the fastener is fixed to the second hole.

4. The battery pack according to claim 3, characterized in that, The panel includes a horizontal portion and a vertical portion connected together. The through hole is provided in the horizontal portion, the vertical portion is fixed to the upper housing, and the vertical portion is exposed outside the housing through the opening.

5. The battery pack according to claim 4, characterized in that, The panel includes a stepped section connecting the horizontal section and the vertical section.

6. The battery pack according to claim 4 or 5, characterized in that, The vertical portion includes a fixed portion and a protrusion. The fixed portion is fixed to the upper housing and located inside the upper housing, while the protrusion is exposed outside the housing through the opening.

7. The battery pack according to any one of claims 1-6, characterized in that, The opening is pore-shaped.

8. The battery pack according to any one of claims 2-7, characterized in that, The upper housing includes a top wall, a front wall, a first side wall, and a second side wall that are connected to each other. The top wall, the front wall, the first side wall, and the second side wall are configured to be connected to each other and fixed to the bottom wall. The top wall and the bottom wall are arranged opposite each other along a first direction, the opening is provided on the front wall, and the first side wall and the second side wall are arranged opposite each other along a second direction, the first direction being perpendicular to the second direction.

9. An electrical appliance, characterized in that, Includes the battery pack as described in any one of claims 1-8.

10. A method for assembling a battery pack according to any one of claims 1-8, characterized in that, include: Secure the connector to the panel; The battery cell assembly is disposed in the receiving space; The panel is moved through the opening, the conductive element is stretched so that the panel fits against the housing, and then the panel is fixed to the housing.

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