Battery casing, battery having same, and electrical device

Abstract

A battery casing, a battery having same, and an electrical device. The battery housing comprises a first end. The first end is provided with a first side wall and a second side wall, which are oppositely arranged. The first side wall is provided with a first concave part sunken towards the second side wall. The first concave part is used for accommodating a battery control unit. The second side wall is provided with a second concave part sunken towards the first side wall, and the second concave part is arranged opposite to at least part of the first concave part in the thickness direction of the second side wall.

Description

Battery shell, battery with same and electric device

[0001] The present application claims priority to the Chinese patent application No. 202420764080.7, filed on April 12, 2024, and entitled "Battery shell, battery with same and electric device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of battery, in particular to a battery shell, a battery with same and an electric device. BACKGROUND

[0003] The current conventional battery has a development trend of thinning the thickness of the battery. However, when the battery is installed, a certain space needs to be left in the thickness direction to install the circuit board, which results in that part of the space in the thickness direction of the battery is occupied and wasted, and thus the conventional battery is difficult to further reduce the thickness and cannot continue to meet the light and thin development needs of the current electronic devices. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application proposes a battery shell with a relatively thin thickness.

[0005] According to the battery shell of the embodiments of the present application, the battery shell includes a first end, the first end has oppositely arranged first and second side walls, the first side wall has a first recess recessed toward the second side wall, the first recess is used to accommodate a battery control unit, the second side wall is provided with a second recess recessed toward the first side wall, and the second recess is oppositely arranged with at least part of the first recess along the thickness direction of the second side wall.

[0006] According to the battery shell of the embodiments of the present application, by arranging the first recess on the first side wall of the battery shell for the installation of the battery control unit, the thickness direction space occupied by the battery control unit in the interior of the battery shell can be reduced, so that the thickness size of the battery shell can be reduced, and the thickness of the battery shell can be thinned. By arranging the second recess on the second side wall of the battery shell and oppositely arranging the second recess with at least part of the first recess, the second recess can better support the first recess, and meanwhile, the second recess can be used to place insulating tape, foam and the like, which can reduce the space occupation in the thickness direction of the battery shell and facilitate the thickness reduction of the battery shell.

[0007] In addition, the battery shell according to the present application can also have the following additional technical features:

[0008] In some embodiments, in the direction from the first side wall to the second side wall, the depth h1 of the first recess and the depth h2 of the second recess satisfy: 0.03≦h2 / h1≦0.1.

[0009] In some embodiments, the first recess extends to the end face of the first end.

[0010] In some embodiments, the first recess extends to at least one side face of the first end.

[0011] In some embodiments, there is a receiving space between the first recess and the second recess, the receiving space being used for accommodating a tab, the first recess having at least one through hole communicating with the receiving space towards the bottom of the second side wall, the through hole being used for allowing a pole to be threaded so as to electrically connect the pole with the tab.

[0012] In some embodiments, the through hole is provided in plurality, and the plurality of through holes are arranged at intervals.

[0013] In some embodiments, in the thickness direction of the first side wall or the second side wall, the orthographic projection of the first recess and the orthographic projection of the second recess coincide.

[0014] In some embodiments, the first side wall and the second side wall are oppositely arranged along the thickness direction of the battery case.

[0015] In some embodiments, the outer periphery of the battery case is provided with a plurality of mounting portions, and the battery case is fixed to an electrical equipment through the mounting portions.

[0016] In some embodiments, the mounting portion is provided with a mounting hole.

[0017] In some embodiments, the outer periphery of the first side wall has a first welding flange extending outward, the outer periphery of the second side wall has a second welding flange extending outward, the first welding flange and the second welding flange are fixedly connected to form a sealed battery case, and the mounting portion is formed on the first welding flange and / or the second welding flange.

[0018] The application also provides a battery having the above-mentioned embodiments.

[0019] The battery according to the embodiments of the application comprises the battery case of the above-mentioned embodiments, a pole core arranged in the battery case, and a battery control unit, and the battery control unit is arranged in the first recess. By arranging the battery case of the above-mentioned embodiments, the thickness of the battery can be effectively reduced, and the thin and light design of the battery can be achieved.

[0020] In some embodiments, the battery control unit includes a protection circuit unit, and an output unit is arranged on a side surface of the protection circuit unit away from the first recess.

[0021] In some embodiments, the battery control unit further includes an electrical connection member arranged on a side of the protection circuit unit away from the first recess in a thickness direction of the battery case and connected to the output unit.

[0022] In some embodiments, the electrical connection member has a first segment connected to a second segment at an angle, the first segment is connected to the output unit and extends in a length direction of the protection circuit unit, one end of the second segment is connected to the first segment, and the other end of the second segment extends out of the first recess.

[0023] In some embodiments, the battery control unit includes at least one electrical connection member, one end of the electrical connection member is connected to the output unit, and the other end of the electrical connection member extends in a length direction of the protection circuit unit and extends out of the first recess from a side surface of the first end.

[0024] In some embodiments, the protection circuit unit includes a unit body and a conductive member connected to an end of the unit body, in a direction from the first side wall to the second side wall, the end of the electrical connection member is overlapped on the conductive member, and a sum of thicknesses of the electrical connection member and the conductive member is less than or equal to a depth of the first recess.

[0025] In some embodiments, in a direction from the first side wall to the second side wall, the depth of the first recess is greater than or equal to a thickness of the battery control unit.

[0026] The application also provides an electric device having the above-mentioned embodiments.

[0027] According to the electric device provided by the embodiments of the application, the battery provided by the embodiments of the application is arranged, so that the installation space of the electric device can be reduced.

[0028] Additional aspects and advantages of the application will be made apparent by the following description. BRIEF DESCRIPTION OF DRAWINGS

[0029] FIG. 1 is a front view of a battery case (first embodiment) according to an embodiment of the application;

[0030] FIG. 2 is a structural schematic view of the battery case (first embodiment) from a first perspective according to an embodiment of the application;

[0031] FIG. 3 is a structural schematic diagram of a battery case (first embodiment) from a second perspective, according to an embodiment of the present application;

[0032] FIG. 4 is a front view of a battery case (second embodiment), according to an embodiment of the present application;

[0033] FIG. 5 is an enlarged view according to the A area in FIG. 4;

[0034] FIG. 6 is a front view of a battery case (third embodiment), according to an embodiment of the present application;

[0035] FIG. 7 is an exploded view of a battery case (third embodiment), according to an embodiment of the present application;

[0036] FIG. 8 is a front view of a battery case (fourth embodiment), according to an embodiment of the present application;

[0037] FIG. 9 is an exploded view of a battery case (fourth embodiment), according to an embodiment of the present application;

[0038] FIG. 10 is a front view of a battery case (fifth embodiment), according to an embodiment of the present application;

[0039] FIG. 11 is an exploded view of a battery case (fifth embodiment), according to an embodiment of the present application;

[0040] FIG. 12 is a front view of a battery case (sixth embodiment), according to an embodiment of the present application;

[0041] FIG. 13 is an exploded view of a battery case (sixth embodiment), according to an embodiment of the present application;

[0042] FIG. 14 is a structural schematic diagram of a first side wall of a battery case (first embodiment), according to an embodiment of the present application.

[0043] Reference Signs: 100, battery case; 1, first side wall; 11, first recess; 12, first side edge; 13, second side edge; 14, third side edge; 18, first welded flange; 2, second side wall; 21, second recess; 22, second welded flange; 3, first escape port; 4, second escape port; 5, pole; 6, through hole; 7, mounting portion; 8, battery control unit; 81, protection circuit unit; 811, output unit; 812, unit body; 813, conductive member; 82, electrical connection member; 821, first section; 822, second section. DETAILED DESCRIPTION

[0044] Embodiments of the present application are described in detail below with reference to the attached drawings, which are meant to be exemplary and not limiting.

[0045] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0046] In addition, the terms "first", "second" are only 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 with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0047] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection, or communication; it can be directly connected, or indirectly connected through intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] The battery shell 100 according to the embodiments of the present application will be described below with reference to FIGS. 1-14.

[0049] As shown in FIGS. 1-8, the battery shell 100 according to the embodiments of the present application, the battery shell 100 comprises a first end, which can refer to the upper end of the battery shell 100 shown in FIG. 1, it should be noted that here is only for the convenience of describing the present application, and is not a limitation of the present application, therefore, it can be understood that the first end of the battery shell 100 can also be the lower end, left end or right end of the battery shell 100. The first end of the battery shell 100 has opposite first and second side walls 1 and 2, the first side wall 1 has a first recess 11 recessed towards the second side wall 2, the first recess 11 is used to accommodate the battery control unit 8.

[0050] In the embodiment, the battery control unit 8 can be placed in the first recess 11, so that the battery control unit 8 can avoid occupying additional space in the thickness direction of the battery shell 100, so that the battery cells in the battery shell 100 can be placed more compactly in the thickness direction, thereby reducing the thickness size of the battery shell 100, and facilitating the overall thickness reduction of the battery shell 100.

[0051] For example, as shown in FIGS. 1 and 6, the first recess 11 is arranged on the upper end of the battery shell 100, the first recess 11 is arranged on the first side wall 1, and the battery control unit 8 is installed in the first recess 11, so that not only the space occupied by the battery control unit 8 in the thickness direction of the battery shell 100 can be reduced, but also the battery control unit 8 arranged at one end of the battery shell 100 is convenient for connection with other components, and the connection difficulty can be reduced. It should be noted that in the following examples of the present application, the length direction, width direction and thickness direction of the battery shell 100 are mentioned. As shown in FIG. 2, the length direction of the battery shell 100 in the example can refer to the up-down direction in FIG. 2, the width direction of the battery shell 100 in the example can refer to the left-right direction in FIG. 2, and the thickness direction of the battery shell 100 in the example can refer to the front-rear direction in FIG. 2. The following examples will not be repeated.

[0052] According to the battery shell 100 of the embodiment of the present application, the first recess 11 is arranged on the first side wall 1 of the battery shell 100 for installing the battery control unit 8, so as to reduce the space occupied by the battery control unit 8 in the thickness direction of the inside of the battery shell 100, thereby reducing the thickness size of the battery shell 100, so that the thickness of the battery shell 100 can be reduced.

[0053] Further, as shown in FIGS. 1 to 3, the second side wall 2 is provided with a second recess 21 recessed towards the first side wall 1. The second recess 21 can enhance the structural strength of the second side wall 2, and in addition, the second recess 21 can form a support for the first side wall 1, so that the first side wall 1 is not easy to bend and deform, thereby ensuring the structural strength of the battery shell 100.

[0054] Optionally, along the thickness direction of the second side wall 2, here the thickness direction of the second side wall 2 can refer to the front-rear direction in FIG. 2, the second recess 21 is arranged opposite to at least part of the first recess 11, so that when the battery control unit 8 is installed in the first recess 11, the second recess 21 can better support the first recess 11, and through the supporting action of the second recess 21 on the first recess 11, the first recess 11 is not easy to be damaged, so that the battery control unit 8 can be more reliably installed in the first recess 11.

[0055] Optionally, the second recess 21 can be used to place insulating tape, foam and the like, so as to insulate and protect the tab in the accommodation space, and absorb energy, etc., so as to reduce the space occupied by the tab in the thickness direction of the battery shell 100, and facilitate the thickness reduction of the battery shell 100.

[0056] Therefore, according to the battery shell 100 of the embodiment of the present application, by arranging the first recess 11 on the first side wall 1 of the battery shell 100 for mounting the battery control unit 8, the space occupied by the battery control unit 8 in the thickness direction of the inside of the battery shell 100 is reduced, so that the thickness of the battery shell 100 can be reduced, and the thickness of the battery shell 100 can be reduced. By arranging the second recess 21 on the second side wall 2 of the battery shell 100, and arranging the second recess 21 opposite to at least part of the first recess 11, the second recess 21 can better support the first recess 11, and the second recess 21 can be used to place insulating tape, foam and the like, so as to reduce the space occupied in the thickness direction of the battery shell 100, and facilitate the thickness reduction of the battery shell 100.

[0057] In an embodiment of the present application, in the direction of the first side wall 1 to the second side wall 2, that is, the front-rear direction in FIG. 2, the depth h1 of the first recess 11 and the depth h2 of the second recess 21 satisfy: 0.03≦h2 / h1≦0.1, that is, the depth h1 of the first recess 11 is greater than the depth h2 of the second recess 21. By designing the depth h1 of the first recess 11 to be relatively large, the battery control unit can be completely assembled in the first recess 11 as much as possible, thereby facilitating the thickness reduction of the battery shell 100. Moreover, by satisfying: 0.03≦h2 / h1≦0.1, the second recess 21 can better support the first recess 11, and can better place insulating tape, foam and the like, so as to insulate and protect the tab in the accommodation space, and absorb energy, etc.

[0058] Optionally, h2 / h1 can be 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.1, which is not limited in the present application.

[0059] In an embodiment of the present application, as shown in FIGS. 1-9, the first recess 11 extends to the end face of the first end, that is, the first end is the upper end of the first recess 11, the upper end of the first side wall 1 has a first side edge 12, and the first recess 11 extends to the first side edge 12. In the length direction of the battery case 100, the first recess 11 extends to the first side edge 12 of the battery case 100, and the side of the first recess 11 close to the first side edge 12 is open, so that the battery control unit 8 installed in the first recess 11 can be connected to external components from the side of the first recess 11 close to the first side edge 12, thereby avoiding the connection structure of the battery control unit 8 occupying the space in the thickness direction inside the battery case 100, so as to further reduce the thickness dimension of the battery case 100.

[0060] In an embodiment of the present application, the first recess 11 extends to at least one side of the first end, as shown in FIG. 1, the first side wall 1 further has a second side edge 13 and a third side edge 14, and the second side edge 13 and the third side edge 14 are respectively located at both ends of the first side edge 12. In the examples shown in FIGS. 10-13, the first recess 11 extends to the second side edge 13 and / or the third side edge 14, so that the first recess 11 forms a first avoiding opening 3 at the second side edge 13 and / or forms a second avoiding opening 4 at the third side edge 14.

[0061] In one example, the first recess 11 can extend to the second side edge 13 and form a first avoiding opening 3 at the second side edge 13. In one example, the first recess 11 can extend to the third side edge 14 and form a second avoiding opening 4 at the third side edge 14. In one example, the first recess 11 can extend to both the second side edge 13 and the third side edge 14, and form a first avoiding opening 3 at the second side edge 13 and a second avoiding opening 4 at the third side edge 14, respectively.

[0062] As shown in FIG. 1, the second side edge 13 and the third side edge 14 are respectively two side edges in the width direction of the battery case 100. In the examples shown in FIGS. 10-13, the first recess 11 is close to the first side edge 12 and extends to the first side edge 12, and in the width direction of the battery case 100, both ends of the first recess 11 extend to the second side edge 13 and the third side edge 14, respectively, and the side of the first recess 11 close to the second side edge 13 is provided with a first avoiding opening 3, and the side of the first recess 11 close to the third side edge 14 is provided with a second avoiding opening 4. In this way, the battery control unit 8 installed in the first recess 11 can be connected to other components through the first avoiding opening 3 and the second avoiding opening 4 on both sides in the width direction of the battery, thereby reducing the occupation of the connection structure of the first recess 11 to the space in the thickness direction of the battery case 100, and further facilitating the thickness reduction of the battery case 100.

[0063] In an embodiment of the present application, the first recess 11 and the second recess 21 have a containing space for containing the tab, the first recess 11 has at least one through hole 6 communicating with the containing space at the bottom of the second side wall 2, and the through hole 6 is used to allow the pole 5 to pass through to be electrically connected with the tab. The tab is arranged in the containing space, and the pole is electrically connected with the tab by passing through the through hole 6 at the bottom of the groove of the first recess 11. Such design can not only make full use of the containing space between the first recess 11 and the second recess 21, improve the space utilization, but also reduce the space occupied by the tab in the thickness direction of the battery shell 100, facilitate the thickness reduction of the battery shell 100.

[0064] In an embodiment of the present application, as shown in the examples of FIGS. 1-3, the through hole 6 is provided with one, and the pole 5 is provided with one, as shown in the examples of FIGS. 4-7, the through hole 6 is provided with multiple, and the multiple through holes 6 are arranged at intervals. For example, in the embodiment shown in FIG. 4, the through hole 6 can be provided with four, and the four through holes 6 are arranged at intervals along the length direction of the first recess 11, and one tab is arranged at each through hole 6. This arrangement is used for the output scheme of large current, and can form a fast charging scheme. For example, in the embodiment shown in FIG. 7, the through hole 6 can be provided with two, and the two through holes 6 are arranged at intervals along the length direction of the first recess 11, and one tab is arranged at each through hole 6. In the specific embodiment, the arrangement of multiple through holes 6 can meet the installation requirements of different specifications of battery cells, and widen the use range of the battery shell 100.

[0065] In an embodiment, the bottom of the first recess 11 can also be provided with a liquid injection hole.

[0066] In an embodiment of the present application, the orthographic projection of the first recess 11 and the orthographic projection of the second recess 21 coincide in the thickness direction of the first side wall 1 or the second side wall 2. As shown in FIGS. 1 and 2, in the projection plane perpendicular to the thickness direction of the battery shell 100, the projection areas of the first recess 11 and the second recess 21 are equal and coincide. Such design not only facilitates the manufacture of the first recess 11 and the second recess 21, but also helps to ensure the overall structural strength of the battery shell 100, prevent the design shapes of the first recess 11 and the second recess 21 from being different, causing local damage due to uneven stress, and also make the containing space between the first recess 11 and the second recess 21 more regular, which facilitates the assembly of the tab and the opening of the through hole 6.

[0067] As shown in the example of FIG. 1 and FIG. 2, the first side edge 12 is located at the first recess 11, and the first recess 11 in this example does not have the first avoiding opening 3 nor the second avoiding opening 4. As shown in the example of FIG. 10 and FIG. 11, the first side edge 12 is located at the first recess 11, and the first recess 11 in this example does not have the first avoiding opening 3 but has the second avoiding opening 4. As shown in the example of FIG. 12 and FIG. 13, the first side edge 12 is located at the first recess 11, and the first recess 11 in this example has the first avoiding opening 3 and the second avoiding opening 4. It can be understood that there can be other examples for the specific structure of the first recess 11, which will not be listed one by one in this application.

[0068] In an embodiment of the present application, the first side wall 1 and the second side wall 2 are oppositely arranged along the thickness direction of the battery shell 100, that is, the first side wall 1 and the second side wall 2 are respectively two wallboards in the thickness direction of the battery shell 100. It can be understood that the two wallboards in the thickness direction of the battery shell 100 are the wallboards with the largest area of the battery shell 100, and the first recess 11 and the second recess 21 are constructed on the wallboards with the largest area of the battery shell 100, which can reduce the cost, and the arrangement space of the first recess 11 and the second recess 21 is larger, and the arrangement positions of the first recess 11 and the second recess 21 can be designed according to actual needs.

[0069] In an embodiment of the present application, as shown in FIG. 1 to FIG. 13, the outer periphery of the battery shell 100 is provided with a plurality of mounting portions 7, and the battery shell 100 is fixed to the electric equipment through the mounting portions 7. In this way, the stability of the mounting of the battery shell 100 can be ensured, and the plurality of mounting portions 7 are arranged along the outer periphery of the battery shell 100, which can make the circumferential stress of the battery shell 100 more balanced, so that the battery shell 100 is more difficult to fall off from the electric equipment.

[0070] In a specific embodiment of the present application, as shown in FIG. 1 to FIG. 13, the mounting portion 7 is provided with a mounting hole. In this specific embodiment, the battery shell 100 is fixedly mounted on the electric equipment by using a fastener to pass through the mounting hole. In this way, the connection strength between the battery shell 100 and the electric equipment can be effectively improved, and at the same time, the disassembly and maintenance of the battery shell 100 are also facilitated, which can effectively reduce the maintenance cost.

[0071] In a specific embodiment of the present application, as shown in FIG. 1 to FIG. 3, the outer periphery of the first side wall 1 has a first welding flange 18 extending outward, the outer periphery of the second side wall 2 has a second welding flange 22 extending outward, the first welding flange 18 and the second welding flange 22 are fixedly connected to construct a sealed battery shell 100, and the first welding flange 18 and / or the second welding flange 22 is constructed with a mounting portion 7.

[0072] In one example, after the first welding flange 18 is welded to the second welding flange 22, the extension area of the first welding flange 18 is larger than that of the second welding flange 22, so that the mounting portion 7 can be constructed on the first welding flange 18 alone.

[0073] In one example, after the first welding flange 18 is welded to the second welding flange 22, the extension area of the second welding flange 22 is larger than that of the first welding flange 18, so that the mounting portion 7 can be constructed on the second welding flange 22 alone.

[0074] In one example, after the first welding flange 18 is welded to the second welding flange 22, the mounting portion 7 can be constructed on the welding area of the first welding flange 18 and the second welding flange 22.

[0075] Optionally, the battery shell 100 can also be welded and fixed to the electric device through the first welding flange 18 or the second welding flange 22, so that the space occupied by the welding flange is fully utilized, the space utilization is improved, the mounting portion 7 and the welding flange are arranged at one place, and the connection strength between the battery shell 100 and the electric device can be further improved.

[0076] The application further provides a battery with the above-mentioned embodiments.

[0077] The battery according to the embodiments of the application comprises the battery shell 100, the pole core and the battery control unit 8 of the above-mentioned embodiments, the pole core is arranged in the battery shell 100, and the battery control unit 8 is arranged in the first recess 11. By arranging the battery shell 100 of the above-mentioned embodiments, the thickness of the battery can be effectively reduced, and the thin and light design of the battery can be realized.

[0078] In one embodiment of the application, as shown in FIGS. 6 and 7, the battery control unit 8 comprises a protection circuit unit 81, and the protection circuit unit 81 is provided with an output unit on the side surface away from the first recess 11.

[0079] For example, in one specific embodiment shown in FIGS. 6 and 7, the protection circuit unit 81 is provided with a plurality of output units 811 on the side surface away from the first recess 11, and the plurality of output units 811 are all reeds. The protection circuit unit 81 can be electrically connected to the electric device through the reeds, and at the same time, the protection circuit unit 81 can be pasted with foam or insulating tape for buffering energy absorption or insulation protection.

[0080] In an embodiment of the application, as shown in FIGS. 6, 7, 8 and 9, the battery control unit 8 comprises a protection circuit unit 81 and an electrical connector 82, which can be a flexible circuit board, the electrical connector 82 is arranged on the side of the protection circuit unit 81 away from the first recess 11 along the thickness direction of the battery shell 100 and is connected to the output unit 811 of the protection circuit unit 81. The output unit 811 of the protection circuit unit 81 is connected to the electrical connector 82, and the protection circuit unit 81 is connected to the electrical equipment through the electrical connector 82. Since the electrical connector 82 can have a certain flexibility, it can be used in a situation where the installation space is relatively small. Therefore, connecting the protection circuit unit 81 and the electrical equipment through the electrical connector 82 can effectively reduce the connection difficulty and improve the assembly efficiency. At the same time, when the electrical connector 82 is a flexible circuit board, the thickness is relatively small, which will not increase the thickness size of the battery shell 100.

[0081] Further, in the examples of FIGS. 8 and 9, the protection circuit unit 81 comprises a unit body 812 and a conductive member 813 connected to the end of the unit body 812, and the conductive member 813 can be electrically connected to the pole 5.

[0082] In an embodiment of the application, as shown in FIGS. 1, 2, 3, 8 and 9, the battery shell 100 has a first side wall 1 and a second side wall 2 arranged opposite to each other, the first side wall 1 has a first recess 11 recessed towards the second side wall 2, the first recess 11 is used to accommodate the battery control unit 8, the first side edge 12 is located in the first recess 11, the electrical connector 82 has a first section 821 and a second section 822 connected at an angle to the first end, the first section 821 is connected to the output unit 811 and extends along the length direction of the protection circuit unit 81, one end of the second section 822 is connected to the first section 821, and the other end of the second section 822 extends out of the first recess 11 by the first side edge 12 of the first side wall 1. For example, as shown in FIGS. 8 and 9, the first section 821 and the second section 822 of the electrical connector 82 integrally form an "L" shape, wherein, in the length direction of the protection circuit unit 81, the first section 821 is stacked on the side of the protection circuit unit 81 away from the first recess 11, and the second section 822 extends along the length direction of the battery shell 100 to be electrically connected to the electrical equipment. Such design not only does not occupy the thickness space of the battery shell 100, but also fully utilizes the space in the length direction of the battery shell 100, thereby improving the space utilization. Wherein, the length direction of the protection circuit unit 81 can refer to the left-right direction in FIG. 1.

[0083] In one embodiment of the present application, the battery shell 100 has a first sidewall 1 and a second sidewall 2 arranged oppositely, the first sidewall 1 has a first recess 11 recessed towards the second sidewall 2, the first recess 11 is used to accommodate the battery control unit 8, the first sidewall 1 has a first side edge 12 located in the first recess 11, the battery control unit 8 comprises at least one electrical connector 82, one end of the electrical connector 82 is connected to the output unit 811, the other end of the electrical connector 82 extends along the length direction of the protection circuit unit 82 and protrudes out of the first recess 11 from the side of the first end. Referring to FIG. 1, the battery shell 100 has a first sidewall 1 and a second sidewall 2 arranged oppositely, the first sidewall 1 has a first recess 11 recessed towards the second sidewall 2, the first recess 11 is used to accommodate the battery control unit 8, the first sidewall 1 has a first side edge 12 located in the first recess 11, the first sidewall 1 further has a second side edge 13 and a third side edge 14, the second side edge 13 and the third side edge 14 are respectively located at both ends of the first side edge 12, in the examples of FIGS. 10-13, the first recess 11 extends to the second side edge 13 and / or the third side edge 14, so that the first recess 11 forms a first avoiding opening 3 at the second side edge 13, and / or the first recess 11 forms a second avoiding opening 4 at the third side edge 14. The battery control unit 8 comprises at least one electrical connector 82, one end of the electrical connector 82 is located in the assembly groove and connected to the conductive part 813, the other end extends along the length direction of the unit body 812 and protrudes out of the first recess 11 through the first avoiding opening 3 or the second avoiding opening 4.

[0084] In the specific embodiment, the electrical connector 82 can protrude out of the first recess 11 through the first avoiding opening 3 or protrude out of the first recess 11 through the second avoiding opening 4, so that the electrical connector 82 can avoid occupying the width space of the battery shell 100, and the stability of the electrical connection between the protection circuit unit 81 and the electrical equipment can be ensured.

[0085] In one specific embodiment, for example, as shown in FIGS. 12 and 13, the electrical connector 82 is provided with two, the two electrical connectors 82 are respectively connected to both ends in the length direction of the protection circuit unit 81 and respectively protrude out of the first recess 11 through the first avoiding opening 3 and the second avoiding opening 4, so that the electrical connector 82 can avoid occupying the width space of the battery shell 100.

[0086] In one embodiment of the present application, as shown in FIGS. 10-13, the protection circuit unit 81 includes a unit body 812 and a conductive piece 813 connected to an end of the unit body 812, and the end of the electrical connecting piece 82 is stacked on the conductive piece 813 in the direction of the first side wall 1 to the second side wall 2, and the sum of the thicknesses of the electrical connecting piece 82 and the conductive piece 813 is less than or equal to the depth of the first recess 11. That is, the thickness of the unit body 812 is thick, and the conductive piece 813 with a thin thickness can be arranged at the end of the unit body 812, and the stacking of the electrical connecting piece 82 and the conductive piece 813 can better avoid increasing the thickness of the battery case 100.

[0087] In one example, as shown in FIGS. 12 and 13, the conductive piece 813 is provided with two, and in the width direction of the battery case 100, the two conductive pieces 813 are respectively connected to the two sides of the unit body 812, and the two conductive pieces 813 can respectively extend out of the first recess 11 from the first avoiding opening 3 and the second avoiding opening 4.

[0088] In one example, the conductive piece 813 is provided with one, the first side wall 1 has the first avoiding opening 3, and the conductive piece 813 can be connected to the side of the unit body 812 facing the first avoiding opening 3, and then the conductive piece 813 can extend out of the first recess 11 from the first avoiding opening 3.

[0089] In one example, as shown in FIGS. 10 and 11, the conductive piece 813 is provided with one, the first side wall 1 has the second avoiding opening 4, and the conductive piece 813 can be connected to the side of the unit body 812 facing the second avoiding opening 4, and then the conductive piece 813 can extend out of the first recess 11 from the second avoiding opening 4.

[0090] In one embodiment of the present application, as shown in FIGS. 1-13, in the direction of the first side wall 1 to the second side wall 2, the depth of the first recess 11 is greater than or equal to the thickness of the battery control unit 8, so that the battery control unit 8 can be completely embedded in the first recess 11 to prevent the battery control unit 8 from protruding out of the first recess 11 and occupying the space in the thickness direction of the battery case 100.

[0091] The present application also provides an electrical equipment having the above-mentioned embodiments.

[0092] According to the electrical equipment of the embodiments of the present application, the battery of the above-mentioned embodiments is arranged, so that the installation space of the electrical equipment can be reduced.

[0093] The other configurations and operations of the battery case 100, the battery having the same, and the electrical equipment according to the embodiments of the present application are known to those skilled in the art, and will not be described in detail here.

[0094] In the description of the application, reference has been made to descriptive terms such as "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" etc. Such terminology means that a particular feature, structure, material or characteristic being described is included in at least one embodiment or example of the application. The illustrative examples given are not necessarily to be construed as preferred or advantageous or with the exclusion of other equally valid examples. Moreover, such terminology is not intended to exclude the incorporation of one or more feature, structure, material or characteristic in any other example or embodiment. Furthermore, in the description of the application, terms such as first and second and the like can be used merely as a label to distinguish between different components of the application. In no way should such labelling imply that a particular component must be employed or be the only component of its kind to be employed in the application.

[0095] Although embodiments of the application have been illustrated and described, it will be clear to those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and the spirit of the application. The scope of the application is limited only by the claims and the equivalents thereof.

Claims

1. A battery shell, characterized in that: The battery shell (100) comprises a first end, wherein the first end has a first side wall (1) and a second side wall (2) arranged opposite to each other, wherein the first side wall (1) has a first recess (11) recessed toward the second side wall (2), wherein the first recess (11) is used to accommodate a battery control unit (8), and the second side wall (2) is provided with a second recess (21) recessed toward the first side wall (1), and along the thickness direction of the second side wall (2), the second recess (21) is arranged opposite to at least a portion of the first recess (11).

2. The battery case according to claim 1, wherein In the direction from the first side wall (1) to the second side wall (2), the depth h1 of the first recess (11) and the depth h2 of the second recess (21) satisfy: 0.03≦h2 / h1≦0.

1.

3. The battery case according to claim 1, wherein: The first recess (11) extends to the end surface of the first end.

4. The battery case according to claim 1, wherein: The first recess (11) extends to at least one side surface of the first end.

5. The battery case according to claim 1, wherein: There is an accommodating space between the first recess (11) and the second recess (21), and the accommodating space is used to accommodate the pole lug. The first recess (11) has at least one through hole (6) connected to the accommodating space at the bottom facing the second side wall (2), and the through hole (6) is used to allow the pole (5) to pass through, so that the pole (5) is electrically connected to the pole lug.

6. The battery case according to claim 5, characterized in that A plurality of through holes (6) are provided, and the plurality of through holes (6) are spaced apart from each other.

7. The battery case according to claim 1, wherein: In the thickness direction of the first side wall (1) or the second side wall (2), the orthographic projection of the first recess (11) and the orthographic projection of the second recess (21) coincide with each other.

8. The battery case according to claim 1, wherein: The first side wall (1) and the second side wall (2) are arranged opposite to each other along the thickness direction of the battery shell (100).

9. The battery case according to claim 1, wherein: The outer periphery of the battery shell (100) is provided with a plurality of mounting portions (7), and the battery shell (100) is fixed to the electrical equipment via the mounting portions (7).

10. The battery case according to claim 9, wherein: The mounting portion (7) is provided with a mounting hole.

11. The battery case according to claim 9, wherein The outer periphery of the first side wall (1) has a first welding flange (18) extending outward, and the outer periphery of the second side wall (2) has a second welding flange (22) extending outward, the first welding flange (18) and the second welding flange (22) are fixedly connected, and the mounting portion (7) is formed on the first welding flange (18) and / or the second welding flange (22).

12. A battery, characterized in that: include: The battery case (100) according to any one of claims 1 to 11; A pole core, the pole core being arranged in the battery shell (100); A battery control unit (8) is installed in the first recess (11).

13. The battery according to claim 12, characterized in that The battery control unit (8) comprises a protection circuit unit (81), and an output unit (811) is provided on a surface of the protection circuit unit (81) facing away from the first recess (11).

14. The battery according to claim 13, characterized in that The battery control unit (8) further includes an electrical connector (82), which is arranged on a side of the protection circuit unit (81) away from the first recess (11) along the thickness direction of the battery shell (100) and is connected to the output unit (811).

15. The battery according to claim 14, characterized in that The electrical connector (82) comprises a first section (821) and a second section (822) connected to the first section (821) at an angle, the first section (821) being connected to the output unit (811) and extending along the length direction of the protection circuit unit (81), one end of the second section (822) being connected to the first section (821), and the other end of the second section (822) extending out of the first recess (11).

16. The battery according to claim 14, characterized in that The battery shell (100) is the battery shell (100) according to claim 4, and the battery control unit (8) includes: at least one electrical connector (82), one end of the electrical connector (82) is connected to the output unit (811), and the other end of the electrical connector (82) extends along the length direction of the protection circuit unit (81) and extends out of the first recess (11) from the side of the first end.

17. The battery according to claim 14, characterized in that The protection circuit unit (81) comprises a unit body (812) and a conductive member (813) connected to the end of the unit body (812); in the direction from the first side wall (1) to the second side wall (2), the end of the electrical connector (82) is superimposed on the conductive member (813), and the sum of the thicknesses of the electrical connector (82) and the conductive member (813) is less than or equal to the depth of the first recess (11).

18. The battery according to claim 12, characterized in that In the direction from the first side wall (1) to the second side wall (2), the depth of the first recess (11) is greater than or equal to the thickness of the battery control unit (8).

19. An electrical device, characterized in that: A battery comprising the battery according to any one of claims 12 to 18.

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