WO2025214386A1 - 电池壳和具有其的电池、用电设备 - Google Patents

电池壳和具有其的电池、用电设备

Info

Publication number
WO2025214386A1
WO2025214386A1 PCT/CN2025/087926 CN2025087926W WO2025214386A1 WO 2025214386 A1 WO2025214386 A1 WO 2025214386A1 CN 2025087926 W CN2025087926 W CN 2025087926W WO 2025214386 A1 WO2025214386 A1 WO 2025214386A1
Authority
WO
WIPO (PCT)
Prior art keywords
recess
battery
side wall
battery case
electrical connector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2025/087926
Other languages
English (en)
French (fr)
Inventor
张贺
龚桂芳
张小华
谭钊杰
蔡小丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BYD Co Ltd
Original Assignee
BYD Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BYD Co Ltd filed Critical BYD Co Ltd
Publication of WO2025214386A1 publication Critical patent/WO2025214386A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present application relates to the field of battery technology, and in particular to a battery shell and a battery and electrical equipment having the same.
  • the present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application is to propose a battery case with a relatively thin thickness.
  • the battery shell includes a first end, the first end having a first side wall and a second side wall arranged opposite to each other, the first side wall having a first recessed portion recessed toward the second side wall, the first recess being used to accommodate a battery control unit, and the second side wall being 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.
  • a first recess is provided on the first side wall of the battery shell for mounting 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 and making it possible to reduce the thickness of the battery shell.
  • the second recess can better support the first recess.
  • the second recess can be used to place insulating tape, foam, etc., which can reduce the space occupied by the battery shell in the thickness direction and facilitate the thinning of the battery shell.
  • the battery case according to the present application may also have the following additional technical features:
  • a depth h1 of the first recess and a depth h2 of the second recess satisfy: 0.03 ⁇ h2/h1 ⁇ 0.1.
  • the first recess extends to an end surface of the first end.
  • the first recess extends to at least one side surface of the first end.
  • the accommodating space there is an accommodating space between the first recess and the second recess, and the accommodating space is used to accommodate the pole tab.
  • 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 tab.
  • a plurality of the through holes are provided, and the plurality of the through holes are spaced apart from each other.
  • an orthographic projection of the first recess and an orthographic projection of the second recess coincide with each other.
  • the first side wall and the second side wall are arranged opposite to each other along the thickness direction of the battery shell.
  • a plurality of mounting portions are provided on the outer periphery of the battery case, and the battery case is fixed to the electrical equipment through the mounting portions.
  • a mounting hole is provided on the mounting portion.
  • 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 construct the sealed battery shell
  • the mounting portion is constructed on the first welding flange and/or the second welding flange.
  • the present application also provides a battery having the above embodiment.
  • a battery according to an embodiment of the present application includes: a battery case according to the above embodiment, a core, and a battery control unit, wherein the core is disposed within the battery case; and the battery control unit is mounted within the first recess.
  • 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.
  • the battery control unit further includes: an electrical connector, which is provided 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.
  • 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.
  • 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.
  • 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.
  • a depth of the first recess is greater than or equal to a thickness of the battery control unit.
  • the present application also proposes an electrical device having the above embodiment.
  • the electric device includes the battery of the above embodiment.
  • the installation space occupied by the electric device can be reduced.
  • FIG1 is a front view of a battery case according to an embodiment of the present application (first embodiment);
  • FIG2 is a schematic structural diagram of a battery case (first embodiment) according to an embodiment of the present application from a first viewing angle;
  • FIG3 is a schematic structural diagram of a battery case (first embodiment) according to an embodiment of the present application from a second viewing angle;
  • FIG4 is a front view of a battery case according to an embodiment of the present application (second embodiment);
  • FIG5 is an enlarged view of area A in FIG4 ;
  • FIG6 is a front view of a battery case according to an embodiment of the present application (third embodiment);
  • FIG7 is an exploded view of a battery case according to an embodiment of the present application (third embodiment).
  • FIG8 is a front view of a battery case according to an embodiment of the present application (fourth embodiment).
  • FIG9 is an exploded view of a battery case according to an embodiment of the present application (fourth embodiment).
  • FIG10 is a front view of a battery case according to an embodiment of the present application (fifth embodiment);
  • FIG11 is an exploded view of a battery case according to an embodiment of the present application (fifth embodiment);
  • FIG12 is a front view of a battery case according to an embodiment of the present application (sixth embodiment);
  • FIG13 is an exploded view of a battery case according to an embodiment of the present application (sixth embodiment);
  • FIG14 is a schematic structural diagram of a first side wall of a battery case (first embodiment) according to an embodiment of the present application.
  • first and second are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as “first” or “second” may explicitly or implicitly include one or more of the features. Throughout the description of this application, “plurality” means two or more, unless otherwise specifically defined.
  • the battery case 100 according to an embodiment of the present application is described below with reference to Figures 1-14.
  • the battery shell 100 includes a first end.
  • the first end can refer to the upper end of the battery shell 100 shown in Figure 1. It should be noted that this is only for the convenience of explaining 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 a first side wall 1 and a second side wall 2 that are 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 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.
  • 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.
  • the battery control unit 8 is installed in the first recess 11.
  • the length direction of the battery shell 100 in the example can refer to the up and down direction in Figure 2
  • the width direction of the battery shell 100 in the example can refer to the left and right direction in Figure 2
  • the thickness direction of the battery shell 100 in the example can refer to the front and back direction in Figure 2. The following examples will not be repeated.
  • 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 interior of the battery shell 100, thereby reducing the thickness dimension of the battery shell 100, so that the thickness of the battery shell 100 can be thinned.
  • 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.
  • the second recess 21 can form a support for the first side wall 1, so that the first side wall 1 is not easily bent and deformed, thereby ensuring the structural strength of the battery shell 100.
  • the thickness direction of the second side wall 2 can refer to the front-to-back direction in Figure 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.
  • the first recess 11 is not easily damaged, so that the battery control unit 8 can be more reliably installed in the first recess 11.
  • the second recess 21 can be used to place insulating tape, foam, etc. to insulate and protect the tabs in the accommodating space and provide buffering and energy absorption, etc., which can reduce the space occupied by the tabs in the thickness direction of the battery shell 100 and facilitate thinning the thickness of the battery shell 100.
  • the battery shell 100 of the embodiment of the present application by providing a 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 battery shell 100 can be reduced, thereby reducing the thickness of the battery shell 100 and thinning the thickness of the battery shell 100.
  • the second recess 21 can better support the first recess 11.
  • 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 thinning the thickness of the battery shell 100.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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 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.
  • the connection structure of the battery control unit 8 can be prevented from occupying the space in the thickness direction of the battery shell 100, thereby further reducing the thickness of the battery shell 100.
  • the first recess 11 extends to at least one side of the first end.
  • the first side wall 1 also has a second side 13 and a third side 14, and the second side 13 and the third side 14 are respectively located at both ends of the first side 12.
  • 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 and the third side 14 construct a second avoidance opening 4.
  • 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 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.
  • the second side 13 and the third side 14 are the two side edges in the width direction of the battery shell 100 respectively.
  • the first recess 11 is close to the first side 12 and extends to the first side 12.
  • the two ends of the first recess 11 extend to the second side 13 and the third side 14 respectively, and the first recess 11 is provided with a first avoidance opening 3 on the side close to the second side 13, and a second avoidance opening 4 on the side close to the third side 14.
  • 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 width direction of the battery, 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 conducive to thinning the thickness of the battery shell 100.
  • the storage space there is a storage space between the first recess 11 and the second recess 21, and the storage space is used to accommodate the tab.
  • 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 tab.
  • the tab is arranged in the storage space, and the pole passes through the through hole 6 at the bottom of the groove of the first recess 11 to be electrically connected to the tab.
  • 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, thereby improving space utilization, and on the other hand, can reduce the space occupied by the tab in the thickness direction of the battery shell 100, thereby facilitating thinning the thickness of the battery shell 100.
  • one through-hole 6 is provided, and one pole 5 is provided.
  • multiple through-holes 6 are provided, and the multiple through-holes 6 are spaced apart.
  • 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 large current output solution and can form a fast charging solution; for example, in the embodiment shown in Figure 7, 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 each through-hole 6 is provided with a pole ear.
  • the provision of multiple through-holes 6 can meet the installation requirements of battery cells of different specifications, broadening the scope of use of the battery shell 100.
  • a liquid injection hole can be further provided at the bottom of the first recess 11 .
  • the orthographic projection of the first recess 11 and the orthographic projection of the second recess 21 coincide with each other.
  • the projection areas of the first recess 11 and the second recess 21 are equal and coincide with each other.
  • 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, and prevents the different design shapes of the first recess 11 and the second recess 21, which may cause local damage due to uneven force.
  • it can also make the accommodation space between the first recess 11 and the second recess 21 more regular, which not only facilitates the assembly of the tabs, but also facilitates the opening of the through hole 6.
  • the first side 12 is located in the first recess 11.
  • the first recess 11 does not have the first avoidance opening 3 and the second avoidance opening 4.
  • the first side 12 is located in the first recess 11.
  • the first recess 11 does not have the first avoidance opening 3 but has the second avoidance opening 4.
  • the first side 12 is located in the first recess 11.
  • the first recess 11 has the first avoidance opening 3 and the second avoidance opening 4. It can be understood that there can be other examples for the specific structure of the first recess 11, and this application does not list them one by one.
  • 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, 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.
  • 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. Constructing the first recess 11 and the second recess 21 on the wall panel with the largest area of the battery shell 100 can reduce costs, and the arrangement space of the first recess 11 and the second recess 21 is large, and the arrangement positions of the first recess 11 and the second recess 21 can be designed according to actual needs.
  • 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 the battery shell 100 less likely to fall off from the electrical equipment.
  • a mounting hole is provided on the mounting portion 7.
  • the battery case 100 is fixedly mounted on the electrical device by passing a fastener through the mounting hole. This can effectively improve the connection strength between the battery case 100 and the electrical device, and at the same time, it also facilitates the disassembly, assembly, and maintenance of the battery case 100, which can effectively reduce maintenance costs.
  • 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 a mounting portion 7 is constructed on the first welding flange 18 and/or 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 , thereby the mounting portion 7 can be constructed solely on the first welding flange 18 .
  • the extension area of the second welding flange 22 is larger than the extension area of the first welding flange 18 , thereby the mounting portion 7 can be constructed solely on 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 .
  • 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 space utilization, 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.
  • the present application also provides a battery having the above embodiment.
  • the battery according to an embodiment of the present application includes: the battery case 100 of the above embodiment, a pole core, and a battery control unit 8.
  • the pole core is disposed within the battery case 100, and the battery control unit 8 is mounted within the first recess 11.
  • 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 .
  • a plurality of output units 811 are provided on the surface of the protection circuit unit 81 facing away from the first recess 11.
  • the plurality of output units 811 are all springs, and the protection circuit unit 81 can be electrically connected to the electrical equipment through the springs.
  • 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.
  • the battery control unit 8 includes a protection circuit unit 81 and an electrical connector 82.
  • the electrical connector 82 can be a flexible circuit board.
  • the electrical connector 82 is disposed along the thickness direction of the battery case 100 on the side of the protection circuit unit 81 that is away from the first recess 11 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 via the electrical connector 82. Since the electrical connector 82 can have a certain degree of flexibility, it can be used in situations where the installation space is relatively narrow.
  • the protection circuit unit 81 and the electrical device through the electrical connector 82 can effectively reduce the difficulty of connection and improve assembly efficiency.
  • the electrical connector 82 is a flexible circuit board, the thickness is relatively thin and does not increase the thickness of the battery case 100.
  • 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 .
  • 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 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, the electrical connector 82 has a connected first section 821 and a second section 822 connected to the first end at an angle, 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 from the first side 12 of the first side wall 1.
  • the first section 821 and the second section 822 of the electrical connector 82 are generally L-shaped, wherein, in the longitudinal direction of the protection circuit unit 81, the first section 821 overlaps with the side of the protection circuit unit 81 away from the first recess 11, and the second section 822 extends along the longitudinal direction of the protective battery case 100 to electrically connect to the electrical device.
  • This design not only does not occupy the thickness space of the battery case 100, but also can fully utilize the space in the longitudinal direction of the battery case 100, thereby improving space utilization.
  • the longitudinal direction of the protection circuit unit 81 can refer to the left-right direction in Figure 1.
  • 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 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.
  • a battery case 100 has a first sidewall 1 and a second sidewall 2 disposed opposite each other.
  • the first sidewall 1 has a first recess 11 recessed toward the second sidewall 2.
  • the first recess 11 is configured to accommodate a battery control unit 8.
  • a first side 12 is located in the first recess 11.
  • the first sidewall 1 also has a second side 13 and a third side 14, located at opposite ends of the first side 12.
  • the first recess 11 extends to the second side 13 and/or the third side 14, such that the first recess 11 forms a first escape 3 on the second side 13 and/or a second escape 4 on the third side 14.
  • the battery control unit 8 includes at least one electrical connector 82. One end of the electrical connector 82 is located within the assembly slot and connected to the conductive member 813. The other end extends along the length of the battery body 812 and extends out of the first recess 11 through the first escape 3 or the second escape 4.
  • the electrical connector 82 can extend from the first recess 11 through the first avoidance opening 3, or extend from the first recess 11 through 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.
  • 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 connector 82 can be prevented from occupying the width space of the battery shell 100.
  • the protection circuit unit 81 includes a unit body 812 and a conductive member 813 connected to the end of the unit body 812.
  • the end of the electrical connector 82 overlaps 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.
  • the unit body 812 is relatively thick, a thinner conductive member 813 can be provided at the end of the unit body 812.
  • two conductive members 813 are provided. In the width direction of the battery shell 100, the two conductive members 813 are respectively connected to both 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.
  • 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 from the first avoidance opening 3 to the first recess 11.
  • a conductive member 813 is provided, 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 from the second avoidance opening 4 to the first recess 11.
  • 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 from the first recess 11 and occupying the space in the thickness direction of the battery shell 100.
  • the present application also proposes an electrical device having the above embodiment.
  • the electric device includes the battery of the above embodiment.
  • the installation space occupied by the electric device can be reduced.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

一种电池壳和具有其的电池、用电设备，该电池壳包括第一端，第一端具有相对设置的第一侧壁和第二侧壁，第一侧壁具有朝向第二侧壁凹陷的第一凹部，第一凹部用于容纳电池控制单元，第二侧壁设置有朝向第一侧壁凹陷的第二凹部，沿第二侧壁的厚度方向，第二凹部与至少部分第一凹部相对设置。

Description

电池壳和具有其的电池、用电设备
本申请要求于2024年04月12日提交中国专利局、申请号为202420764080.7、申请名称为“电池壳和具有其的电池、用电设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电池技术领域，尤其是涉及一种电池壳和具有其的电池、用电设备。
背景技术
目前的传统电池具有将电池的厚度做薄这一发展趋势，但在电池安装时，往往需要在厚度方向上需要留出一定的空间，以便安装电路板，从而导致电池在厚度方向上的部分空间被占用和浪费，进而使得传统电池难以进一步减薄厚度，无法继续满足目前电子设备的轻薄化发展需求。
发明内容
本申请旨在至少解决现有技术中存在的技术问题之一。为此，本申请在于提出一种电池壳，其厚度较薄。
根据本申请实施例的电池壳，所述电池壳包括第一端，所述第一端具有相对设置的第一侧壁和第二侧壁，所述第一侧壁具有朝向所述第二侧壁凹陷的第一凹部，所述第一凹部用于容纳电池控制单元，所述第二侧壁设置有朝向所述第一侧壁凹陷的第二凹部，沿所述第二侧壁的厚度方向，所述第二凹部与至少部分所述第一凹部相对设置。
根据本申请实施例的电池壳，通过在电池壳的第一侧壁上设置第一凹部，用于电池控制单元的安装，以便减少电池控制单元对电池壳内部的厚度方向的空间占用，从而能够减少电池壳的厚度尺寸，以使电池壳的厚度能够减薄。通过在电池壳的第二侧壁上设置第二凹部，且使得第二凹部与至少部分的第一凹部相对设置，第二凹部可以较好地对第一凹部进行支撑，同时，第二凹部中能够用于放置绝缘胶带、泡棉等，能够减少对电池壳的厚度方向上的空间占用，便于电池壳的厚度减薄。
另外，根据本申请的电池壳，还可以具有如下附加的技术特征：
在一些实施例中，在所述第一侧壁至所述第二侧壁的方向上，所述第一凹部的深度h1与所述第二凹部的深度h2满足：0.03≦h2/h1≦0.1。
在一些实施例中，所述第一凹部延伸至所述第一端的端面。
在一些实施例中，所述第一凹部延伸至所述第一端的至少一个侧面。
在一些实施例中，所述第一凹部和所述第二凹部之间具有容纳空间，所述容纳空间用于容纳极耳，所述第一凹部朝向所述第二侧壁的底部具有与所述容纳空间连通的至少一个通孔，所述通孔用于允许极柱穿设，以使所述极柱与所述极耳电连接。
在一些实施例中，所述通孔设置有多个，多个所述通孔间隔开设置。
在一些实施例中，在所述第一侧壁或者所述第二侧壁的厚度方向上，所述第一凹部的正投影和所述第二凹部的正投影相重合。
在一些实施例中，所述第一侧壁和所述第二侧壁沿所述电池壳厚度方向相对设置。
在一些实施例中，所述电池壳的外周缘设置有多个安装部，所述电池壳通过所述安装部固定于用电设备。
在一些实施例中，所述安装部上设置有安装孔。
在一些实施例中，所述第一侧壁的外周缘具有向外延伸的第一焊接翻边，所述第二侧壁的外周缘具有向外延伸的第二焊接翻边，所述第一焊接翻边和所述第二焊接翻边固定连接以构造出密封的所述电池壳，所述第一焊接翻边和/或所述第二焊接翻边上构造出所述安装部。
本申请还提出一种具有上述实施例的电池。
根据本申请实施例的电池，包括：上述实施例的电池壳、极芯和电池控制单元，所述极芯设于所述电池壳内；电池控制单元安装在第一凹部内。通过设置上述实施例的电池壳，能够有效减少电池整体的厚度尺寸，实现电池的轻薄化设计。
在一些实施例中，所述电池控制单元包括保护电路单元，所述保护电路单元背离所述第一凹部的一侧表面设有输出单元。
在一些实施例中，所述电池控制单元还包括：电连接件，所述电连接件沿所述电池壳的厚度方向设在所述保护电路单元背离所述第一凹部的一侧，且与所述输出单元相连。
在一些实施例中，所述电连接件具有第一段和与所述第一段呈夹角相连的第二段，所述第一段与所述输出单元相连且沿所述保护电路单元的长度方向延伸，所述第二段的一端与所述第一段相连，所述第二段的另一端伸出所述第一凹部。
在一些实施例中，所述电池控制单元包括：至少一个电连接件，所述电连接件的一端与所述输出单元相连，所述电连接件的另一端沿所述保护电路单元的长度方向延伸且从所述第一端的侧面伸出所述第一凹部。
在一些实施例中，所述保护电路单元包括单元本体和连接于单元本体端部的导电件，在所述第一侧壁至所述第二侧壁的方向上，所述电连接件的端部叠置在所述导电件上，且所述电连接件与所述导电件的厚度之和小于或者等于所述第一凹部的深度。
在一些实施例中，在所述第一侧壁至所述第二侧壁的方向上，所述第一凹部的深度大于或者等于所述电池控制单元的厚度。
本申请还提出一种具有上述实施例的用电设备。
根据本申请实施例的用电设备，包括：上述实施例的电池，通过设置上述实施例的电池，能够减小对用电设备的安装空间的占用。
本申请的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。
附图说明
图1是根据本申请实施例的电池壳(第一实施例)的正视图；
图2是根据本申请实施例的电池壳(第一实施例)第一视角的结构示意图；
图3是根据本申请实施例的电池壳(第一实施例)第二视角的结构示意图；
图4是根据本申请实施例的电池壳(第二实施例)的正视图；
图5是根据图4中的A区域的放大图；
图6是根据本申请实施例的电池壳(第三实施例)的正视图；
图7是根据本申请实施例的电池壳(第三实施例)的爆炸图；
图8是根据本申请实施例的电池壳(第四实施例)的正视图；
图9是根据本申请实施例的电池壳(第四实施例)的爆炸图；
图10是根据本申请实施例的电池壳(第五实施例)的正视图；
图11是根据本申请实施例的电池壳(第五实施例)的爆炸图；
图12是根据本申请实施例的电池壳(第六实施例)的正视图；
图13是根据本申请实施例的电池壳(第六实施例)的爆炸图；
图14是根据本申请实施例的电池壳(第一实施例)的第一侧壁的结构示意图。
附图标记：
100、电池壳；
1、第一侧壁；11、第一凹部；12、第一侧边；13、第二侧边；14、第三侧边；18、第
一焊接翻边；
2、第二侧壁；21、第二凹部；22、第二焊接翻边；
3、第一避让口；4、第二避让口；5、极柱；6、通孔；7、安装部；
8、电池控制单元；81、保护电路单元；811、输出单元；812、单元本体；813、导电
件；82、电连接件；821、第一段；822、第二段。
具体实施方式
下面详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本申请，而不能理解为对本申请的限制。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接，还可以是通信；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
下面参考图1-14图描述根据本申请实施例的电池壳100。
如图1至图8所示，根据本申请实施例的电池壳100，电池壳100包括第一端，第一端可以参考图1所示的电池壳100的上端，需要说明的是，这里仅是为了便于对本申请进行说明，而非对本申请的限制，因此，可以理解地是，电池壳100的第一端也可以为电池壳100的下端、左端或者右端。电池壳100的第一端具有相对的第一侧壁1和第二侧壁2，第一侧壁1具有朝向第二侧壁2凹陷的第一凹部11，第一凹部11用于容纳电池控制单元8。
在本实施例中，电池控制单元8能够放置在第一凹部11中，这样，能够避免电池控制单元8额外占用电池壳100的厚度方向上的空间，使得电池壳100中的电芯在厚度方向上能够放置地更加紧凑，从而能够减少电池壳100的厚度尺寸，有利于电池壳100整体的厚度减薄。
例如图1和图6所示，在电池壳100上端设置有第一凹部11，第一凹部11设置在第一侧壁1上，电池控制单元8安装在第一凹部11中，这样，不仅能够减少电池控制单元8对电池壳100厚度方向上的空间占用，而且位于电池壳100一端处设置的电池控制单元8便于与其它零部件相连，能够降低连接难度。其中，需要说明的是，本申请的下述示例中有提及电池壳100的长度方向、宽度方向以及厚度方向，以图2所示，示例中的电池壳100的长度方向可以参考图2中的上下方向，示例中的电池壳100的宽度方向可以参考图2中的左右方向，示例中的电池壳100的厚度方向可以参考图2中的前后方向，下述示例中不再赘述。
根据本申请实施例的电池壳100，通过在电池壳100的第一侧壁1上设置第一凹部11，用于电池控制单元8的安装，以便减少电池控制单元8对电池壳100内部的厚度方向的空间占用，从而能够减少电池壳100的厚度尺寸，以使电池壳100的厚度能够减薄。
进一步地，如图1至图3所示，第二侧壁2设置有朝向第一侧壁1凹陷的第二凹部21，通过设置第二凹部21可以增强第二侧壁2的结构强度，另外，第二凹部21可以形成对第一侧壁1的支撑，使得第一侧壁1不易弯曲变形，从而保证电池壳100的结构强度。
可选地，沿第二侧壁2的厚度方向，这里，第二侧壁2的厚度方向可以参考图2中的前后方向，第二凹部21与至少部分第一凹部11相对设置，由此，在电池控制单元8安装在第一凹部11内时，第二凹部21可以较好地对第一凹部11进行支撑，通过第二凹部21对第一凹部11的支撑作用，使得第一凹部11不易损伤，从而使得电池控制单元8能较为可靠地安装在第一凹部11内。
可选地，第二凹部21中能够用于放置绝缘胶带、泡棉等，以对容纳空间中的极耳进行绝缘保护和缓冲吸能等，能够减少极耳对电池壳100的厚度方向上的空间占用，便于电池壳100的厚度减薄。
由此，根据本申请实施例的电池壳100，通过在电池壳100的第一侧壁1上设置第一凹部11，用于电池控制单元8的安装，以便减少电池控制单元8对电池壳100内部的厚度方向的空间占用，从而能够减少电池壳100的厚度尺寸，以使电池壳100的厚度能够减薄。通过在电池壳100的第二侧壁2上设置第二凹部21，且使得第二凹部21与至少部分的第一凹部11相对设置，第二凹部21可以较好地对第一凹部11进行支撑，同时，第二凹部21中能够用于放置绝缘胶带、泡棉等，能够减少对电池壳100的厚度方向上的空间占用，便于电池壳100的厚度减薄。
在本申请的一个实施例中，在第一侧壁1至第二侧壁2的方向上，也即图2中的前后方向，第一凹部11的深度h1与第二凹部21的深度h2满足：0.03≦h2/h1≦0.1，也就是说，第一凹部11的深度h1大于第二凹部21的深度h2，通过使得第一凹部11的深度h1设计地较大，可以较好地使得电池控制单元尽可能地完全装配在第一凹部11内，从而有利于电池壳100的减薄，并且，通过使得第一凹部11的深度h1与第二凹部21的深度h2满足：0.03≦h2/h1≦0.1，可以使得第二凹部21既能较好地对第一凹部11进行支撑，还能较好地放置绝缘胶带、泡棉等，以对容纳空间中的极耳进行绝缘保护和缓冲吸能等。
可选地，h2/h1可以为0.03、0.04、0.05、0.06、0.07、0.08、0.09、0.1，本申请不做限制。
在本申请的一个实施例中，如图1至图9所示，第一凹部11延伸至第一端的端面，也即，第一端为第一凹部11的上端，第一侧壁1的上端具有第一侧边12，第一凹部11延伸至第一侧边12。在电池壳100的长度方向上，第一凹部11延伸至电池壳100的第一侧边12上，且第一凹部11靠近第一侧边12的一侧为开口，以使安装在第一凹部11中的电池控制单元8能够从第一凹部11靠近第一侧边12的一侧与外部的零部件相连，这样，能够避免电池控制单元8的连接结构占用电池壳100内部的厚度方向上的空间，从而能够进一步减少电池壳100的厚度尺寸。
在本申请的一个实施例中，第一凹部11延伸至第一端的至少一个侧面，如图1所示，第一侧壁1还具有第二侧边13和第三侧边14，第二侧边13和第三侧边14分别位于第一侧边12的两端，在图10至图13所示的示例中，第一凹部11延伸至第二侧边13和/或第三侧边14，以使第一凹部11于第二侧边13构造出第一避让口3，和/或，第一凹部11与第三侧边14构造出第二避让口4。
在一个示例中，第一凹部11能够延伸至第二侧边13，并在第二侧边13构造出第一避让口3；在一个示例中，第一凹部11能够延伸至第三侧边14，并在第三侧边14构造出第二避让口4，在一个示例中，第一凹部11能够同时延伸至第二侧边13和第三侧边14，并分别在第二侧边13构造出第一避让口3和在第三侧边14构造出第二避让孔。
如图1所示，第二侧边13和第三侧边14分别是电池壳100宽度方向上的两侧边，在图10至图13所示的示例中，第一凹部11靠近第一侧边12，且延伸至第一侧边12，同时，在电池壳100的宽度方向上，第一凹部11的两端分别延伸至第二侧边13和第三侧边14，且第一凹部11靠近第二侧边13的一侧设置有第一避让口3，第一凹部11靠近第三侧边14的一侧设置有第二避让口4，这样，安装在第一凹部11中的电池控制单元8能够通过电池宽度方向上的两侧的第一避让口3和第二避让口4与其它零部件相连，从而能够减少第一凹部11的连接结构对电池壳100的厚度方向的空间的占用，进而有利于电池壳100的厚度减薄。
在本申请的一个实施例中，第一凹部11和第二凹部21之间具有容纳空间，容纳空间用于容纳极耳，第一凹部11朝向第二侧壁2的底部具有与容纳空间连通的至少一个通孔6，通孔6用于允许极柱5穿设，以使极柱5与极耳电连接。将极耳设置在容纳空间中，并使极柱穿过第一凹部11的槽底的通孔6与极耳进行电连接，这样的设计，一方面能够充分利用第一凹部11与第二凹部21之间的容纳空间，提高空间利用率，另一方面能够减少极耳对电池壳100的厚度方向上的空间占用，便于电池壳100的厚度减薄。
在本申请的实施例中，如图1至图3所示的示例中，通孔6设置有一个，极柱5设置有一个，如图4至图7所示的示例中，通孔6设置有多个，多个通孔6间隔开设置。例如图4所示的实施例中，通孔6能够设置有四个，四个通孔6沿第一凹部11的长度方向间隔开设置，每一通孔6处均设置有一个极耳，此种布置形式用于大电流的输出方案，能够形成快充方案；例如图7所示的实施例中，通孔6能够设置有两个，两个通孔6沿第一凹部11的长度方向间隔开设置，每一通孔6处均设置有一个极耳。在本具体实施例中，多个通孔6的设置能够满足不同规格的电芯的安装需求，拓宽了电池壳100的使用范围。
在一个实施例中，第一凹部11的底部还能够设置有注液孔。
在本申请的一个实施例中，在第一侧壁1或者第二侧壁2的厚度方向上，第一凹部11的正投影和第二凹部21的正投影相重合，结合图1和图2所示，在垂直于电池壳100厚度方向所在的投影面内，第一凹部11和第二凹部21的投影面积相等，且重合。这样的设计，不仅方便第一凹部11和第二凹部21的制造，而且有利于保证电池壳100整体的结构强度，防止第一凹部11和第二凹部21处的设计形状不同，造成局部因受力不均损坏的情况，同时，还能够使得第一凹部11和第二凹部21之间的容纳空间更加规整，这样，不仅方便极耳的装配，而且方便通孔6的开设。
如图1和图2所示的示例，第一侧边12位于第一凹部11，本示例中的第一凹部11没有第一避让口3，也没有第二避让口4。如图10和图11所示的示例，第一侧边12位于第一凹部11，本示例中的第一凹部11没有第一避让口3，有第二避让口4。如图12和图13所示的示例，第一侧边12位于第一凹部11，本示例中的第一凹部11有第一避让口3，有第二避让口4。可以理解的是，对于第一凹部11的具体结构，还可以有其他的示例，本申请不做一一列举。
在本申请的一个实施例中，第一侧壁1和第二侧壁2沿电池壳100厚度方向相对设置，也即第一侧壁1和第二侧壁2分别为电池壳100厚度方向的两个壁板，可以理解的是，电池壳100厚度方向的两个壁板为电池壳100面积最大的壁板，在电池壳100面积最大的壁板上构造出第一凹部11以及第二凹部21，可以降低成本，且第一凹部11和第二凹部21的布置空间较大，可以根据实际需求对第一凹部11和第二凹部21的布置位置进行设计。
在本申请的一个实施例中，如图1至图13所示，电池壳100的外周缘设置有多个安装部7，电池壳100通过安装部7固定于用电设备，这样，能够保证电池壳100的安装的稳固性，且多个安装部7是沿电池壳100的外周缘设置，能够使得电池壳100的周向受力更加均衡，从而使得电池壳100更加不易从用电设备上脱落。
在本申请的一个具体实施例中，如图1至图13所示，安装部7上设置有安装孔。在本具体实施例中，通过使用紧固件穿过安装孔，以将电池壳100固定安装在用电设备上，这样，能够有效提高电池壳100与用电设备之间的连接强度，同时，也方便电池壳100的拆装和维修，能够有效降低维修成本。
在本申请的一个具体实施例中，如图1至图3所示，第一侧壁1的外周缘具有向外延伸的第一焊接翻边18，第二侧壁2的外周缘具有向外延伸的第二焊接翻边22，第一焊接翻边18和第二焊接翻边22固定连接以构造出密封的电池壳100，第一焊接翻边18和/或第二焊接翻边22上构造出安装部7。
在一个示例中，第一焊接翻边18于第二焊接翻边22焊接后，第一焊接翻边18的延展区域大于第二焊接翻边22的延展区域，由此，可以单独在第一焊接翻边18上构造出安装部7。
在一个示例中，第一焊接翻边18于第二焊接翻边22焊接后，第二焊接翻边22的延展区域大于第一焊接翻边18的延展区域，由此，可以单独在第二焊接翻边22上构造出安装部7。
在一个示例中，第一焊接翻边18于第二焊接翻边22焊接后，可以在第一焊接翻边18和第二焊接翻边22的焊接区域构造安装部7。
可选地，电池壳100还能够通过第一焊接翻边18或者第二焊接翻边22与用电设备焊接固定，不仅充分利用了焊接边所占用的空间，提高了空间利用率，而且安装部7与焊接边设置在一处，能够进一步提高电池壳100与用电设备之间的连接强度。
本申请还提出一种具有上述实施例的电池。
根据本申请实施例的电池，包括：上述实施例的电池壳100、极芯和电池控制单元8，极芯设于电池壳100内，电池控制单元8安装在第一凹部11内。通过设置上述实施例的电池壳100，能够有效减少电池整体的厚度尺寸，实现电池的轻薄化设计。
在本申请的一个实施例中，如图6和图7所示，电池控制单元8包括保护电路单元81，保护电路单元81背离第一凹部11的一侧表面设有输出单元。
例如图6和图7所示的一个具体实施例，保护电路单元81背离第一凹部11一侧表面设置有多个输出单元811，多个输出单元811均为簧片，保护电路单元81能够通过簧片与用电设备进行电连接，同时，保护电路单元81上还能够粘贴有泡棉或绝缘胶带，以便对保护电路单元81进行缓冲吸能或绝缘保护。
在本申请的一个实施例中，如图6、图7、图8和图9所示，电池控制单元8包括保护电路单元81和电连接件82，电连接件82可以为柔性电路板，电连接件82沿电池壳100的厚度方向设在保护电路单元81背离第一凹部11的一侧，且与保护电路单元81的输出单元811相连。保护电路单元81的输出单元811与电连接件82相连，保护电路单元81通过电连接件82与用电设备相连，由于电连接件82可以具有一定的柔韧性，能够用于安装空间较为狭小的情况，因此，通过电连接件82连接保护电路单元81和用电设备，能够有效降低连接难度，提高装配效率，同时，电连接件82为柔性电路板时厚度较薄，不会增大电池壳100的厚度尺寸。
进一步地，在图8和图9的示例中，保护电路单元81包括单元本体812和连接于单元本体812端部的导电件813，导电件813可以与极柱5进行电连接。
在本申请的一个实施例中，如图1、图2、图3、图8和图9所示，电池壳100具有相对设置的第一侧壁1和第二侧壁2，第一侧壁1具有朝向第二侧壁2凹陷的第一凹部11，第一凹部11用于容纳电池控制单元8，第一侧边12位于第一凹部11，电连接件82具有相连的第一段821和与第一端呈夹角相连的第二段822，第一段821与输出单元811相连，且沿保护电路单元81的长度方向延伸，第二段822的一端与第一段821相连，第二段822的另一端由第一侧壁1的第一侧边12伸出第一凹部11。例如图8和图9所示，电连接件82的第一段821和第二段822整体呈“L”形，其中，在保护电路单元81的长度方向上，第一段821与保护电路单元81远离第一凹部11的一侧叠置，第二段822沿保护电池壳100的长度方向延伸，以与用电设备电连接，这样的设计，不仅不会占用电池壳100的厚度空间，而且能够充分利用电池壳100的长度方向上的空间，提高了空间利用率。其中，保护电路单元81的长度方向可以参考图1中的左右方向。
在本申请的一个实施例中，电池壳100具有相对设置的第一侧壁1和第二侧壁2，第一侧壁1具有朝向第二侧壁2凹陷的第一凹部11，第一凹部11用于容纳电池控制单元8，第一侧边12位于第一凹部11，电池控制单元8包括：至少一个电连接件82，电连接件82的一端与输出单元811相连，电连接件82的另一端沿保护电路单元82的长度方向延伸且从第一端的侧面伸出第一凹部11。参考图1所示，电池壳100具有相对设置的第一侧壁1和第二侧壁2，第一侧壁1具有朝向第二侧壁2凹陷的第一凹部11，第一凹部11用于容纳电池控制单元8，第一侧边12位于第一凹部11，第一侧壁1还具有第二侧边13和第三侧边14，第二侧边13和第三侧边14分别位于第一侧边12的两端，在图10至图13的示例中，第一凹部11延伸至第二侧边13和/或第三侧边14，以使第一凹部11于第二侧边13构造出第一避让口3，和/或，第一凹部11于第三侧边14构造出第二避让口4。电池控制单元8包括：至少一个的电连接件82，电连接件82的一端位于装配槽内，并与导电件813相连，另一端沿与单元本体812的长度方向延伸，并由第一避让口3或第二避让口4伸出第一凹部11。
在本具体实施例中，电连接件82能够由第一避让口3伸出第一凹部11，或是从第二避让口4伸出第一凹部11，这样，能够避免电连接件82占用电池壳100的宽度空间，同时，还能够保证保护电路单元81与用电设备的电连接的稳定性。
在一个具体实施例中，例如图12和图13所示，电连接件82设置有两个，两个电连接件82分别与保护电路单元81的长度方向上的两端相连，并分别从第一避让口3和第二避让口4伸出第一凹部11，这样，能够避免电连接件82占用电池壳100的宽度空间。
在本申请的一个实施例中，如图10至图13所示，保护电路单元81包括单元本体812和连接于单元本体812端部的导电件813，在第一侧壁1至第二侧壁2的方向上，电连接件82的端部叠置在导电件813上，且电连接件82与导电件813的厚度之和小于或者等于第一凹部11的深度。也就是说，单元本体812的厚度较厚，可以在单元本体812的端部设置厚度较薄的导电件813，通过电连接件82与导电件813的叠置，可以较好地避免增大电池壳100的厚度。
在一个示例中，如图12和图13所示，导电件813设置有两个，在电池壳100的宽度方向上，两个导电件813分别连接在单元本体812的两侧，两个导电件813可以分别从第一避让口3和第二避让口4伸出第一凹部11。
在一个示例中，导电件813设置有一个，第一侧壁1具有第一避让口3，导电件813可以连接件单元本体812朝向第一避让口3的一侧，然后导电件813可以从第一避让口3伸出第一凹部11。
在一个示例中，如图10和图11所示，导电件813设置有一个，第一侧壁1具有第二避让口4，导电件813可以连接件单元本体812朝向第二避让口4的一侧，然后导电件813可以从第二避让口4伸出第一凹部11。
在本申请的一个实施例中，如图1至图13所示，在第一侧壁1至第二侧壁2的方向上，第一凹部11的深度大于或者等于电池控制单元8的厚度，这样，能够保证电池控制单元8能够完全嵌入第一凹部11中，以防止电池控制单元8凸出第一凹部11，占用电池壳100的厚度方向的空间。
本申请还提出一种具有上述实施例的用电设备。
根据本申请实施例的用电设备，包括：上述实施例的电池，通过设置上述实施例的电池，能够减小对用电设备的安装空间的占用。
根据本申请实施例的电池壳100和具有其的电池、用电设备的其他构成以及操作对于本领域普通技术人员而言都是已知的，这里不再详细描述。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管已经示出和描述了本申请的实施例，本领域的普通技术人员可以理解：在不脱离本申请的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本申请的范围由权利要求及其等同物限定。

Claims (19)

  1. 一种电池壳，其特征在于，所述电池壳(100)包括第一端，所述第一端具有相对设置的第一侧壁(1)和第二侧壁(2)，所述第一侧壁(1)具有朝向所述第二侧壁(2)凹陷的第一凹部(11)，所述第一凹部(11)用于容纳电池控制单元(8)，所述第二侧壁(2)设置有朝向所述第一侧壁(1)凹陷的第二凹部(21)，沿所述第二侧壁(2)的厚度方向，所述第二凹部(21)与至少部分所述第一凹部(11)相对设置。
  2. 根据权利要求1所述的电池壳，其特征在于，在所述第一侧壁(1)至所述第二侧壁(2)的方向上，所述第一凹部(11)的深度h1与所述第二凹部(21)的深度h2满足：0.03≦h2/h1≦0.1。
  3. 根据权利要求1所述的电池壳，其特征在于，所述第一凹部(11)延伸至所述第一端的端面。
  4. 根据权利要求1所述的电池壳，其特征在于，所述第一凹部(11)延伸至所述第一端的至少一个侧面。
  5. 根据权利要求1所述的电池壳，其特征在于，所述第一凹部(11)和所述第二凹部(21)之间具有容纳空间，所述容纳空间用于容纳极耳，所述第一凹部(11)朝向所述第二侧壁(2)的底部具有与所述容纳空间连通的至少一个通孔(6)，所述通孔(6)用于允许极柱(5)穿设，以使所述极柱(5)与所述极耳电连接。
  6. 根据权利要求5所述的电池壳，其特征在于，所述通孔(6)设置有多个，多个所述通孔(6)间隔开设置。
  7. 根据权利要求1所述的电池壳，其特征在于，在所述第一侧壁(1)或者所述第二侧壁(2)的厚度方向上，所述第一凹部(11)的正投影和所述第二凹部(21)的正投影相重合。
  8. 根据权利要求1所述的电池壳，其特征在于，所述第一侧壁(1)和所述第二侧壁(2)沿所述电池壳(100)厚度方向相对设置。
  9. 根据权利要求1所述的电池壳，其特征在于，所述电池壳(100)的外周缘设置有多个安装部(7)，所述电池壳(100)通过所述安装部(7)固定于用电设备。
  10. 根据权利要求9所述的电池壳，其特征在于，所述安装部(7)上设置有安装孔。
  11. 根据权利要求9所述的电池壳，其特征在于，所述第一侧壁(1)的外周缘具有向外延伸的第一焊接翻边(18)，所述第二侧壁(2)的外周缘具有向外延伸的第二焊接翻边(22)，所述第一焊接翻边(18)和所述第二焊接翻边(22)固定连接，所述第一焊接翻边(18)和/或所述第二焊接翻边(22)上形成有所述安装部(7)。
  12. 一种电池，其特征在于，包括：
    权利要求1-11中任一项所述的电池壳(100)；
    极芯，所述极芯设于所述电池壳(100)内；
    电池控制单元(8)，所述电池控制单元(8)安装在所述第一凹部(11)内。
  13. 根据权利要求12所述的电池，其特征在于，所述电池控制单元(8)包括保护电路单元(81)，所述保护电路单元(81)背离所述第一凹部(11)的一侧表面设有输出单元(811)。
  14. 根据权利要求13所述的电池，其特征在于，所述电池控制单元(8)还包括：电连接件(82)，所述电连接件(82)沿所述电池壳(100)的厚度方向设在所述保护电路单元(81)背离所述第一凹部(11)的一侧，且与所述输出单元(811)相连。
  15. 根据权利要求14所述的电池，其特征在于，所述电连接件(82)具有第一段(821)和与所述第一段(821)呈夹角相连的第二段(822)，所述第一段(821)与所述输出单元(811)相连且沿所述保护电路单元(81)的长度方向延伸，所述第二段(822)的一端与所述第一段(821)相连，所述第二段(822)的另一端伸出所述第一凹部(11)。
  16. 根据权利要求14所述的电池，其特征在于，所述电池壳(100)为权利要求4所述的电池壳(100)，所述电池控制单元(8)包括：至少一个电连接件(82)，所述电连接件(82)的一端与所述输出单元(811)相连，所述电连接件(82)的另一端沿所述保护电路单元(81)的长度方向延伸且从所述第一端的侧面伸出所述第一凹部(11)。
  17. 根据权利要求14所述的电池，其特征在于，所述保护电路单元(81)包括单元本体(812)和连接于单元本体(812)端部的导电件(813)，在所述第一侧壁(1)至所述第二侧壁(2)的方向上，所述电连接件(82)的端部叠置在所述导电件(813)上，且所述电连接件(82)与所述导电件(813)的厚度之和小于或者等于所述第一凹部(11)的深度。
  18. 根据权利要求12所述的电池，其特征在于，在所述第一侧壁(1)至所述第二侧壁(2)的方向上，所述第一凹部(11)的深度大于或者等于所述电池控制单元(8)的厚度。
  19. 一种用电设备，其特征在于，包括权利要求12-18中任一项所述的电池。
PCT/CN2025/087926 2024-04-12 2025-04-09 电池壳和具有其的电池、用电设备 Pending WO2025214386A1 (zh)

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