Battery shell, battery with same and electric equipment

Abstract

The utility model discloses a battery case and its battery, electric equipment, battery case includes first end, first side wall and second side wall that are arranged opposite to each other, first side wall has facing the first recess of second side wall, the first recess is used for holding battery control unit, second recess is used for holding battery control unit, and the second recess is used for holding battery control unit. The second side wall is provided with a second concave part which is concave towards the first side wall, and the second concave part is opposite to at least part of the first concave part in the thickness direction of the second side wall. According to the battery shell disclosed by the utility model, the first concave part is arranged on the first side wall and is used for mounting the battery control unit, the second concave part is arranged on the second side wall and is opposite to at least part of the first concave part, and the second concave part can better support the first concave part; the second concave part can be used for placing an insulating tape, foam and the like, so that the occupied space of the battery shell in the thickness direction can be reduced, and the thickness of the battery shell can be conveniently reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a battery shell and a battery and electrical equipment having the same. Background Art

[0002] The current traditional batteries have a development trend of making the thickness of the batteries thinner, but when installing the batteries, it is often necessary to leave a certain amount of space in the thickness direction in order to install the circuit board, which causes part of the space of the battery in the thickness direction to be occupied and wasted, making it difficult for traditional batteries to further reduce their thickness and continue to meet the current development needs of lightweight electronic devices. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a battery shell with a relatively thin thickness.

[0004] According to the battery shell of the embodiment of the utility model, the battery shell includes a first end, the first end has a first side wall and a second side wall arranged opposite to each other, the first side wall has a first recessed portion recessed toward the second side wall, the first recess is used to accommodate a battery control unit, and the second side wall is provided with a second recessed portion recessed toward the first side wall, and along the thickness direction of the second side wall, the second recess is arranged opposite to at least part of the first recess.

[0005] According to the battery shell of the embodiment of the utility model, a first recess is provided on the first side wall of the battery shell for installing the battery control unit, so as to reduce the space occupied by the battery control unit in the thickness direction of the battery shell, thereby reducing the thickness of the battery shell, so that the thickness of the battery shell can be reduced. By providing a second recess on the second side wall of the battery shell, and making the second recess opposite to at least part of the first recess, the second recess can better support the first recess, and at the same time, the second recess can be used to place insulating tape, foam, etc., which can reduce the space occupied in the thickness direction of the battery shell and facilitate the thinning of the thickness of the battery shell.

[0006] In addition, the battery case according to the utility model may also have the following additional technical features:

[0007] In some embodiments, in a direction from the first sidewall to the second sidewall, a depth h1 of the first recess and a depth h2 of the second recess satisfy: 0.03≦h2 / h1≦0.1.

[0008] In some embodiments, the first recess extends to an end surface of the first end.

[0009] In some embodiments, the first recess extends to at least one side of the first end.

[0010] In some embodiments, there is a accommodating space between the first recess and the second recess, and the accommodating space is used to accommodate the pole lug. The first recess has at least one through hole connected to the accommodating space at the bottom facing the second side wall, and the through hole is used to allow the pole to pass through so that the pole is electrically connected to the pole lug.

[0011] In some embodiments, a plurality of the through holes are provided, and the plurality of the through holes are spaced apart from each other.

[0012] In some embodiments, in the thickness direction of the first sidewall or the second sidewall, the orthographic projection of the first recess coincides with the orthographic projection of the second recess.

[0013] In some embodiments, the first side wall and the second side wall are arranged opposite to each other along the thickness direction of the battery shell.

[0014] In some embodiments, a plurality of mounting portions are provided at the outer periphery of the battery case, and the battery case is fixed to the electrical device through the mounting portions.

[0015] In some embodiments, a mounting hole is provided on the mounting portion.

[0016] In some embodiments, the outer periphery of the first side wall has a first welding flange extending outward, and 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 construct the sealed battery shell, and the mounting portion is constructed on the first welding flange and / or the second welding flange.

[0017] The utility model also provides a battery having the above embodiment.

[0018] The battery according to the embodiment of the utility model comprises: the battery shell, the pole core and the battery control unit of the above embodiment, wherein the pole core is arranged in the battery shell; and the battery control unit is installed in the first recess. By providing the battery shell of the above embodiment, the thickness of the battery as a whole can be effectively reduced, and the thin and light design of the battery can be realized.

[0019] In some embodiments, the battery control unit includes a protection circuit unit, and an output unit is provided on a surface of the protection circuit unit facing away from the first recess.

[0020] In some embodiments, the battery control unit further includes: an electrical connector, which is arranged on a side of the protection circuit unit away from the first recess along the thickness direction of the battery shell and is connected to the output unit.

[0021] In some embodiments, the electrical connector has a first section and a second section connected to the first section at an angle, the first section is connected to the output unit and extends along the length direction of the protection circuit unit, one end of the second section is connected to the first section, and the other end of the second section extends out of the first recess.

[0022] In some embodiments, the battery control unit includes: at least one electrical connector, one end of which is connected to the output unit, and the other end of which extends along the length direction of the protection circuit unit and extends out of the first recess from the side of the first end.

[0023] In some embodiments, the protection circuit unit includes a unit body and a conductive member connected to the end of the unit body, and in the direction from the first side wall to the second side wall, the end of the electrical connector is overlapped on the conductive member, and the sum of the thickness of the electrical connector and the conductive member is less than or equal to the depth of the first recess.

[0024] In some embodiments, in a direction from the first side wall to the second side wall, a depth of the first recess is greater than or equal to a thickness of the battery control unit.

[0025] The utility model also provides an electrical device having the above embodiment.

[0026] The electric device according to the embodiment of the utility model comprises: the battery of the above embodiment. By arranging the battery of the above embodiment, the installation space occupied by the electric device can be reduced.

[0027] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 1 is a front view of a battery case according to an embodiment of the utility model (first embodiment);

[0029] Figure 2 It is a structural schematic diagram of a battery case (first embodiment) according to an embodiment of the utility model from a first viewing angle;

[0030] Figure 3 It is a structural schematic diagram of a battery case (first embodiment) according to an embodiment of the utility model from a second viewing angle;

[0031] Figure 4 1 is a front view of a battery case (second embodiment) according to an embodiment of the utility model;

[0032] Figure 5 is based on Figure 4 A magnified view of region A in FIG.

[0033] Figure 6 1 is a front view of a battery case (third embodiment) according to an embodiment of the utility model;

[0034] Figure 7 is an exploded view of a battery case (third embodiment) according to an embodiment of the utility model;

[0035] Figure 8 1 is a front view of a battery case according to an embodiment of the utility model (fourth embodiment);

[0036] Fig. 9 1 is an exploded view of a battery case (fourth embodiment) according to an embodiment of the utility model;

[0037] Fig.10 1 is a front view of a battery case (fifth embodiment) according to an embodiment of the utility model;

[0038] Fig.11 is an exploded view of a battery case (fifth embodiment) according to an embodiment of the utility model;

[0039] Fig.12 1 is a front view of a battery case according to an embodiment of the utility model (sixth embodiment);

[0040] Fig.13 is an exploded view of a battery case (sixth embodiment) according to an embodiment of the utility model;

[0041] Fig.14 It is a schematic structural diagram of the first side wall of the battery case (first embodiment) according to an embodiment of the utility model.

[0042] Reference numerals:

[0043] 100. Battery shell;

[0044] 1. first side wall; 11. first recess; 12. first side edge; 13. second side edge; 14. third side edge; 18. first welding flange;

[0045] 2. second side wall; 21. second recess; 22. second welding flange;

[0046] 3. First avoidance opening; 4. Second avoidance opening; 5. Pole; 6. Through hole; 7. Mounting portion;

[0047] 8. Battery control unit; 81. Protection circuit unit; 811. Output unit; 812. Unit body; 813. Conductive member; 82. Electrical connector; 821. First section; 822. Second section. DETAILED DESCRIPTION

[0048] The embodiments of the present invention are described in detail below, and examples of the embodiments 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 intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0049] 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", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0050] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. 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 utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0051] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 a 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.

[0052] Reference below Figure 1-14 The figure illustrates a battery case 100 according to an embodiment of the present invention.

[0053] like Figures 1 to 8 As shown, according to the battery case 100 of the embodiment of the utility model, the battery case 100 includes a first end, and the first end can refer to Figure 1The upper end of the battery case 100 shown here should be noted that this is only for the convenience of explaining the present application, not for limiting the present application. Therefore, it can be understood that the first end of the battery case 100 can also be the lower end, left end or right end of the battery case 100. The first end of the battery case 100 has a first side wall 1 and a second side wall 2 opposite to each other. The first side wall 1 has a first recessed portion 11 that is recessed toward the second side wall 2. The first recessed portion 11 is used to accommodate the battery control unit 8.

[0054] In this embodiment, the battery control unit 8 can be placed in the first recess 11. In this way, the battery control unit 8 can be prevented from 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 of the battery shell 100, which is beneficial to reducing the overall thickness of the battery shell 100.

[0055] For example Figure 1 and Figure 6 As shown, a first recess 11 is provided at the upper end of the battery shell 100, and the first recess 11 is provided on the first side wall 1, and the battery control unit 8 is installed in the first recess 11. In this way, not only can the space occupied by the battery control unit 8 in the thickness direction of the battery shell 100 be reduced, but the battery control unit 8 provided at one end of the battery shell 100 is also convenient for connection with other components, which can reduce the difficulty of connection. It should be noted that the following examples of the present application mention the length direction, width direction and thickness direction of the battery shell 100, as shown in FIG. Figure 2 As shown, the length direction of the battery case 100 in the example can be referred to Figure 2 The vertical direction in the example, the width direction of the battery case 100 can refer to Figure 2 The left and right directions in the example can refer to the thickness direction of the battery case 100. Figure 2 The front and back directions in the example will not be repeated in the following examples.

[0056] According to the battery shell 100 of the embodiment of the utility model, a first recess 11 is provided 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 dimension of the battery shell 100 and making the thickness of the battery shell 100 thinner.

[0057] Furthermore, if Figures 1 to 3 As shown, the second side wall 2 is provided with a second recess 21 recessed toward the first side wall 1. The structural strength of the second side wall 2 can be enhanced by providing the second recess 21. 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.

[0058] Optionally, along the thickness direction of the second side wall 2, here, the thickness direction of the second side wall 2 can refer to Figure 2 In the front-to-back direction, the second recess 21 is arranged opposite to at least part of the first recess 11. Therefore, when the battery control unit 8 is installed in the first recess 11, the second recess 21 can better support the first recess 11. The supporting effect of the second recess 21 on the first recess 11 makes the first recess 11 less likely to be damaged, so that the battery control unit 8 can be more reliably installed in the first recess 11.

[0059] Optionally, the second recess 21 can be used to place insulating tape, foam, etc. to insulate and protect the pole ears in the accommodating space and provide buffering and energy absorption, etc., which can reduce the space occupied by the pole ears in the thickness direction of the battery shell 100 and facilitate thinning the thickness of the battery shell 100.

[0060] Therefore, according to the battery shell 100 of the embodiment of the utility model, the first recess 11 is provided 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 battery shell 100, thereby reducing the thickness of the battery shell 100, so that the thickness of the battery shell 100 can be reduced. By providing the second recess 21 on the second side wall 2 of the battery shell 100, and making 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 at the same time, the second recess 21 can be used to place insulating tape, foam, etc., which can reduce the space occupied in the thickness direction of the battery shell 100 and facilitate the thinning of the thickness of the battery shell 100.

[0061] In one embodiment of the present invention, in the direction from the first side wall 1 to the second side wall 2, that is, Figure 2 In the front-to-back direction, 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 larger, the battery control unit can be better assembled in the first recess 11 as completely as possible, which is beneficial to the thinning of the battery shell 100. In addition, by making the depth h1 of the first recess 11 and the depth h2 of the second recess 21 satisfy: 0.03≦h2 / h1≦0.1, the second recess 21 can not only better support the first recess 11, but also better place insulating tape, foam, etc., to insulate and protect the pole ears in the accommodating space and buffer energy absorption.

[0062] Optionally, h2 / h1 can be 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, or 0.1, which is not limited in this application.

[0063] In one embodiment of the present invention, Figures 1 to 9 As shown, the first recess 11 extends to the end surface 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 shell 100, the first recess 11 extends to the first side edge 12 of the battery shell 100, and the side of the first recess 11 close to the first side edge 12 is an opening, 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. In this way, it is possible to avoid the connection structure of the battery control unit 8 occupying the space in the thickness direction of the battery shell 100, thereby further reducing the thickness of the battery shell 100.

[0064] In one embodiment of the present invention, the first recess 11 extends to at least one side surface of the first end. Figure 1 As shown, 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 two ends of the first side edge 12. Figures 10 to 13 In the example shown, the first recess 11 extends to the second side 13 and / or the third side 14 , so that the first recess 11 forms a first avoidance opening 3 at the second side 13 , and / or the first recess 11 and the third side 14 form a second avoidance opening 4 .

[0065] In one example, the first recess 11 can extend to the second side 13 and construct a first avoidance opening 3 on the second side 13; in one example, the first recess 11 can extend to the third side 14 and construct a second avoidance opening 4 on the third side 14; in one example, the first recess 11 can extend to both the second side 13 and the third side 14 at the same time and construct a first avoidance opening 3 on the second side 13 and a second avoidance hole on the third side 14 respectively.

[0066] like Figure 1 As shown, the second side 13 and the third side 14 are two side edges in the width direction of the battery case 100. Figures 10 to 13In the example shown, the first recess 11 is close to the first side 12 and extends to the first side 12. At the same time, in the width direction of the battery shell 100, the two ends of the first recess 11 extend to the second side 13 and the third side 14 respectively, and a first avoidance opening 3 is provided on the side of the first recess 11 close to the second side 13, and a second avoidance opening 4 is provided on the side of the first recess 11 close to the third side 14. In this way, the battery control unit 8 installed in the first recess 11 can be connected to other components through the first avoidance opening 3 and the second avoidance opening 4 on both sides in the battery width direction, thereby reducing the space occupied by the connection structure of the first recess 11 in the thickness direction of the battery shell 100, which is beneficial to thinning the thickness of the battery shell 100.

[0067] In one embodiment of the utility model, there is a storage space between the first recess 11 and the second recess 21, and the storage space is used to store the pole ear. The first recess 11 has at least one through hole 6 connected to the storage space toward the bottom of 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 ear. The pole ear is arranged in the storage space, and the pole is electrically connected to the pole ear through the through hole 6 at the bottom of the groove of the first recess 11. Such a design can, on the one hand, make full use of the storage space between the first recess 11 and the second recess 21 to improve the space utilization rate, and on the other hand, it can reduce the space occupied by the pole ear in the thickness direction of the battery shell 100, which is convenient for thinning the thickness of the battery shell 100.

[0068] In the embodiment of the present utility model, Figures 1 to 3 In the example shown, one through hole 6 is provided, and one pole 5 is provided. Figures 4 to 7 In the example shown, a plurality of through holes 6 are provided, and the plurality of through holes 6 are spaced apart from each other. Figure 4 In the embodiment shown, four through holes 6 can be provided, and the four through holes 6 are spaced apart along the length direction of the first recess 11, and each through hole 6 is provided with a pole ear. This arrangement is used for a high current output solution and can form a fast charging solution; for example Figure 7 In the embodiment shown, two through holes 6 can be provided, and the two through holes 6 are spaced apart along the length direction of the first recess 11, and a pole ear is provided at each through hole 6. In this specific embodiment, the provision of multiple through holes 6 can meet the installation requirements of battery cells of different specifications, and broaden the scope of use of the battery case 100.

[0069] In one embodiment, a liquid injection hole may be further provided at the bottom of the first recess 11 .

[0070] In one embodiment of the present invention, 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. Figure 1 and Figure 2 As shown, 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 overlap. Such a 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, prevents the first recess 11 and the second recess 21 from being damaged due to uneven force due to different design shapes, and at the same time, can make the accommodation space between the first recess 11 and the second recess 21 more regular, so that it is not only convenient to assemble the pole ear, but also convenient to open the through hole 6.

[0071] like Figure 1 and Figure 2 In the example shown, the first side edge 12 is located in the first recess 11. In this example, the first recess 11 has neither the first avoidance opening 3 nor the second avoidance opening 4. Fig.10 and Fig.11 In the example shown, the first side edge 12 is located in the first recess 11. In this example, the first recess 11 does not have a first avoidance opening 3 but has a second avoidance opening 4. Fig.12 and Fig.13 In the example shown, the first side 12 is located in the first recess 11. In this example, the first recess 11 has a first avoidance opening 3 and a second avoidance opening 4. It is understandable that there may be other examples for the specific structure of the first recess 11, which are not listed one by one in this application.

[0072] In one embodiment of the utility model, the first side wall 1 and the second side wall 2 are arranged relatively to each other 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 wall panels in the thickness direction of the battery shell 100. It can be understood that the two wall panels in the thickness direction of the battery shell 100 are the wall panels with the largest area of ​​the battery shell 100. The first recess 11 and the second recess 21 are constructed on the wall panel with the largest area of ​​the battery shell 100, which can reduce costs, and the arrangement space of the first recess 11 and the second recess 21 is relatively large, and the arrangement positions of the first recess 11 and the second recess 21 can be designed according to actual needs.

[0073] In one embodiment of the present invention, Figures 1 to 13 As shown, a plurality of mounting portions 7 are provided on the outer periphery of the battery shell 100, and the battery shell 100 is fixed to the electrical equipment through the mounting portions 7. In this way, the stability of the installation of the battery shell 100 can be ensured, and the plurality of mounting portions 7 are provided along the outer periphery of the battery shell 100, which can make the circumferential force of the battery shell 100 more balanced, thereby making it more difficult for the battery shell 100 to fall off from the electrical equipment.

[0074] In a specific embodiment of the present invention, Figures 1 to 13As shown, a mounting hole is provided on the mounting portion 7. In this specific embodiment, the battery case 100 is fixedly mounted on the electrical device by using a fastener to pass through the mounting hole, so that the connection strength between the battery case 100 and the electrical device can be effectively improved, and at the same time, the disassembly and maintenance of the battery case 100 is also convenient, which can effectively reduce the maintenance cost.

[0075] In a specific embodiment of the present invention, Figures 1 to 3 As shown, 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 to construct a sealed battery shell 100, and a mounting portion 7 is constructed on the first welding flange 18 and / or the second welding flange 22.

[0076] 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 the extension area of ​​the second welding flange 22 , so that the mounting portion 7 can be constructed on the first welding flange 18 alone.

[0077] 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 the extension area of ​​the first welding flange 18 , so that the mounting portion 7 can be constructed on the second welding flange 22 alone.

[0078] In one example, after the first welding flange 18 is welded to the second welding flange 22 , the mounting portion 7 may be constructed in the welding region between the first welding flange 18 and the second welding flange 22 .

[0079] Optionally, the battery shell 100 can also be welded and fixed to the electrical equipment through the first welding flange 18 or the second welding flange 22, which not only makes full use of the space occupied by the welding edge and improves the space utilization rate, but also the mounting portion 7 and the welding edge are arranged in one place, which can further improve the connection strength between the battery shell 100 and the electrical equipment.

[0080] The utility model also provides a battery having the above embodiment.

[0081] The battery according to the embodiment of the utility model comprises: the battery case 100 of the above embodiment, the pole core and the battery control unit 8, the pole core is arranged in the battery case 100, and the battery control unit 8 is installed in the first recess 11. By providing the battery case 100 of the above embodiment, the thickness of the battery as a whole can be effectively reduced, and the thin and light design of the battery can be realized.

[0082] In one embodiment of the present invention, Figure 6 and Figure 7As shown, the battery control unit 8 includes a protection circuit unit 81 , and an output unit is provided on a surface of the protection circuit unit 81 facing away from the first recess 11 .

[0083] For example Figure 6 and Figure 7 In a specific embodiment shown in the figure, a plurality of output units 811 are arranged on the surface of the protection circuit unit 81 facing away from the first recess 11, and the plurality of output units 811 are all springs. The protection circuit unit 81 can be electrically connected to the electrical equipment through the springs. At the same time, foam or insulating tape can also be pasted on the protection circuit unit 81 to provide buffering, energy absorption or insulation protection for the protection circuit unit 81.

[0084] In one embodiment of the present invention, Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown, the battery control unit 8 includes a protection circuit unit 81 and an electrical connector 82. The electrical connector 82 may 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 device through the electrical connector 82. Since the electrical connector 82 may have a certain degree of flexibility, it can be used in the case where the installation space is relatively small. Therefore, connecting the protection circuit unit 81 and the electrical device 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 thin, and the thickness of the battery shell 100 will not be increased.

[0085] Further, in Figure 8 and Fig. 9 In the example, the protection circuit unit 81 includes a unit body 812 and a conductive member 813 connected to an end of the unit body 812 , and the conductive member 813 can be electrically connected to the pole 5 .

[0086] In one embodiment of the present invention, Figure 1 , Figure 2 , Figure 3 , Figure 8 and Fig. 9As shown, the battery case 100 has a first side wall 1 and a second side wall 2 that are arranged opposite to each other, the first side wall 1 has a first recess 11 that is recessed toward 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 segment 821 that is connected and a second segment 822 that is connected to the first end at an angle, the first segment 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 segment 822 is connected to the first segment 821, and the other end of the second segment 822 extends out of the first recess 11 from the first side edge 12 of the first side wall 1. For example Figure 8 and Fig. 9 As shown, the first section 821 and the second section 822 of the electrical connector 82 are in an "L" shape as a whole, wherein, in the length direction of the protection circuit unit 81, the first section 821 is overlapped with 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 protective battery shell 100 to be electrically connected to the electrical device. Such a design not only does not occupy the thickness space of the battery shell 100, but also can make full use of the space in the length direction of the battery shell 100, thereby improving the space utilization rate. Among them, the length direction of the protection circuit unit 81 can refer to Figure 1 The left and right direction in .

[0087] In one embodiment of the present invention, the battery case 100 has a first side wall 1 and a second side wall 2 that are arranged opposite to each other, the first side wall 1 has a first recess 11 that is recessed toward the second side wall 2, the first recess 11 is used to accommodate the battery control unit 8, the first side 12 is located in the first recess 11, 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 82 and extends out of the first recess 11 from the side of the first end. Figure 1 As shown, the battery case 100 has a first side wall 1 and a second side wall 2 that are arranged opposite to each other, the first side wall 1 has a first recessed portion 11 that is recessed toward the second side wall 2, the first recessed portion 11 is used to accommodate the battery control unit 8, the first side edge 12 is located in the first recessed portion 11, the first side wall 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, Figures 10 to 13 In the example, the first recess 11 extends to the second side 13 and / or the third side 14, so that the first recess 11 constructs a first avoidance opening 3 on the second side 13, and / or the first recess 11 constructs a second avoidance opening 4 on the third side 14. The battery control unit 8 includes: at least one electrical connector 82, one end of which is located in the assembly groove and connected to the conductive member 813, and the other end extends along the length direction of the unit body 812 and extends out of the first recess 11 from the first avoidance opening 3 or the second avoidance opening 4.

[0088] In this specific embodiment, the electrical connector 82 can extend out of the first recess 11 from the first avoidance opening 3, or extend out of the first recess 11 from the second avoidance opening 4. In this way, the electrical connector 82 can be prevented from occupying the width space of the battery shell 100. At the same time, the stability of the electrical connection between the protection circuit unit 81 and the electrical equipment can be ensured.

[0089] In a specific embodiment, for example Fig.12 and Fig.13 As shown, two electrical connectors 82 are provided, and the two electrical connectors 82 are respectively connected to the two ends of the protective circuit unit 81 in the length direction, and extend out of the first recess 11 from the first avoidance opening 3 and the second avoidance opening 4 respectively. In this way, the electrical connectors 82 can be prevented from occupying the width space of the battery shell 100.

[0090] In one embodiment of the present invention, Figures 10 to 13 As shown, the protection circuit unit 81 includes 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 overlapped on the conductive member 813, and the sum of the thickness of the electrical connector 82 and the conductive member 813 is less than or equal to the depth of the first recess 11. In other words, the thickness of the unit body 812 is relatively thick, and a thin conductive member 813 can be provided at the end of the unit body 812. By overlapping the electrical connector 82 and the conductive member 813, the thickness of the battery case 100 can be better avoided from increasing.

[0091] In one example, if Fig.12 and Fig.13 As shown, two conductive members 813 are provided. In the width direction of the battery shell 100, the two conductive members 813 are respectively connected to the two sides of the unit body 812, and the two conductive members 813 can extend out of the first recess 11 from the first avoidance opening 3 and the second avoidance opening 4, respectively.

[0092] In one example, the conductive member 813 is provided with one, the first side wall 1 has a first avoidance opening 3, the conductive member 813 can connect the side of the unit body 812 toward the first avoidance opening 3, and then the conductive member 813 can extend out of the first recess 11 from the first avoidance opening 3.

[0093] In one example, if Fig.10 and Fig.11 As shown, the conductive member 813 is provided with one, the first side wall 1 has a second avoidance opening 4, the conductive member 813 can connect the side of the unit body 812 toward the second avoidance opening 4, and then the conductive member 813 can extend out of the first recess 11 from the second avoidance opening 4.

[0094] In one embodiment of the present invention, Figures 1 to 13As shown, 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. In this way, it can be ensured 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 shell 100.

[0095] The utility model also provides an electrical device having the above embodiment.

[0096] The electric device according to the embodiment of the utility model comprises: the battery of the above embodiment. By arranging the battery of the above embodiment, the installation space occupied by the electric device can be reduced.

[0097] Other structures and operations of the battery case 100 and the battery and electrical equipment having the same according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0098] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 utility model. In this specification, the schematic representations of the above terms do 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. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0099] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate 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. A battery case, characterized in that: The battery shell includes a first end, the first end has a first side wall and a second side wall arranged opposite to each other, the first side wall has a first recessed portion recessed toward the second side wall, the first recess is used to accommodate a battery control unit, and the second side wall is provided with a second recessed portion recessed toward the first side wall, and along the thickness direction of the second side wall, the second recess is arranged opposite to at least part of the first recess.

2. The battery case according to claim 1, characterized in that: In a direction from the first side wall to the second side wall, a depth h1 of the first recess and a depth h2 of the second recess satisfy: 0.03≦h2 / h1≦0.

1.

3. The battery case according to claim 1, characterized in that: The first recessed portion extends to an end surface of the first end.

4. The battery case according to claim 1, characterized in that: The first recess extends to at least one side surface of the first end.

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

6. The battery case according to claim 5, characterized in that: A plurality of through holes are provided, and the plurality of through holes are arranged at intervals.

7. The battery case according to claim 1, characterized in that: In the thickness direction of the first side wall or the second side wall, the orthographic projection of the first recessed portion and the orthographic projection of the second recessed portion coincide with each other.

8. The battery case according to claim 1, characterized in that: The first side wall and the second side wall are arranged opposite to each other along the thickness direction of the battery shell.

9. The battery case according to claim 1, characterized in that: A plurality of mounting parts are arranged on the outer periphery of the battery case, and the battery case is fixed to the electrical equipment through the mounting parts.

10. The battery case according to claim 9, characterized in that: The mounting portion is provided with a mounting hole.

11. The battery case according to claim 9, characterized in that: The outer periphery of the first side wall has a first welding flange extending outward, and 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 construct the sealed battery shell, and the mounting portion is constructed on the first welding flange and / or the second welding flange.

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

13. The battery according to claim 12, characterized in that The battery control unit comprises a protection circuit unit, and an output unit is disposed on a surface of the protection circuit unit facing away from the first recess.

14. The battery according to claim 13, characterized in that The battery control unit further includes an electrical connector, which is disposed on a side of the protection circuit unit away from the first recess along a thickness direction of the battery shell and is connected to the output unit.

15. The battery according to claim 14, characterized in that The electrical connector has a first section and a second section connected to the first section at an angle, the first section is connected to the output unit and extends along the length direction of the protection circuit unit, one end of the second section is connected to the first section, and the other end of the second section extends out of the first recess.

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

17. The battery according to claim 14, characterized in that The protection circuit unit includes a unit body and a conductive member connected to an end of the unit body, and in the direction from the first side wall to the second side wall, the end of the electrical connector is overlapped on the conductive member, and the sum of the thickness of the electrical connector and the conductive member is less than or equal to the depth of the first recess.

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

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

Images