Battery pack and electronic equipment

Abstract

The utility model discloses a battery pack and electronic equipment, and belongs to the technical field of electronic equipment. The battery pack comprises a first battery cell, a second battery cell and a circuit board, the first battery cell and the second battery cell are arranged at an interval, the circuit board is arranged between the first battery cell and the second battery cell, and the thickness direction of the circuit board is the same as the interval arrangement direction of the first battery cell and the second battery cell; the circuit board is provided with a connecting area, and the connecting area protrudes out of the circuit board along the thickness direction of the first battery cell and the second battery cell; the first tab of the first battery cell is connected to one side of the connecting area, and the second tab of the second battery cell is connected to the other side of the connecting area.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment, and in particular to a battery pack and electronic equipment. Background Art

[0002] As the functions of electronic devices continue to increase, the power consumption of electronic devices also continues to increase. In order to increase the capacity of electronic device batteries to meet the power demand of electronic devices, in the prior art, dual-cell batteries are usually set in electronic devices.

[0003] The existing dual-cell battery includes a first cell and a second cell arranged side by side and a circuit board connected to the first cell end and the second cell end. The first electrode tab of the first cell and the second electrode tab of the second cell are both connected to the circuit board, so that the first cell and the second cell are connected to the electronic device through the circuit board.

[0004] However, the tabs of the first battery cell and the second battery cell need to occupy a larger surface of the circuit board, thereby affecting the effective layout area of ​​the circuit board. In the prior art, the problem of insufficient layout area of ​​the circuit board is solved by increasing the width of the circuit board. The increase in the width of the circuit board will further affect the layout space of the first battery cell and the second battery cell, thereby affecting the battery capacity of the electronic device. Utility Model Content

[0005] The utility model discloses a battery pack and an electronic device, so as to solve or at least partially solve the problem existing in the prior art that the width of a circuit board increases, affecting the arrangement space of a first battery cell and a second battery cell, thereby resulting in a smaller battery capacity.

[0006] In order to solve the above technical problems, the utility model is achieved as follows:

[0007] In a first aspect, the utility model discloses a battery pack, comprising: a first battery cell and a second battery cell arranged at an interval, and a circuit board arranged between the first battery cell and the second battery cell, the thickness direction of the circuit board being the same as the direction in which the first battery cell and the second battery cell are arranged at an interval; the circuit board is provided with a connection area, and the connection area protrudes from the circuit board along the thickness direction of the first battery cell and the second battery cell; the first pole ear of the first battery cell is connected to one side of the connection area, and the second pole ear of the second battery cell is connected to the other side of the connection area.

[0008] In a second aspect, the utility model discloses an electronic device, which includes an electronic device body and the battery pack described in the first aspect, wherein a receiving cavity is provided in the electronic device body, and the battery pack is snapped into the receiving cavity.

[0009] The utility model discloses a battery pack and an electronic device, wherein the battery pack comprises a first battery cell and a second battery cell which are spaced apart, and a circuit board which is arranged between the first battery cell and the second battery cell, wherein the thickness direction of the circuit board is the same as the direction in which the first battery cell and the second battery cell are spaced apart; the circuit board is provided with a connection area which protrudes out of the circuit board along the thickness direction of the first battery cell and the second battery cell; the first pole ear of the first battery cell is connected to one side of the connection area, and the second pole ear of the second battery cell is connected to the other side of the connection area.

[0010] In the utility model, a circuit board is arranged between the first battery cell and the second battery cell, and the thickness direction of the circuit board is arranged to be the same as the direction in which the first battery cell and the second battery cell are arranged to space each other, so as to reduce the space occupied by the circuit board, thereby increasing the arrangement space of the first battery cell and the second battery cell and improving the capacity of the battery.

[0011] Furthermore, by providing a connection area on the circuit board, and the connection area protruding from the circuit board along the thickness direction of the first battery cell and the second battery cell, the first battery cell and the second battery cell can be connected to the circuit board through the connection area, so as to increase the area of ​​the circuit board layout area, avoid the first battery cell and the second battery cell being directly connected to the circuit board, occupying the surface area of ​​the circuit board, and making the area of ​​the circuit board layout area small, which cannot meet the layout requirements of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram showing the structure of a battery pack in the prior art;

[0013] Figure 2 A schematic diagram showing the structure of a first battery cell or a second battery cell in the prior art;

[0014] Figure 3 A schematic diagram showing the structure of a circuit board in the prior art;

[0015] Figure 4 A top view of the battery pack according to an embodiment of the present invention is shown;

[0016] Figure 5 A side view of the battery pack according to an embodiment of the present invention is shown;

[0017] Figure 6 A schematic diagram showing the structure of the first battery cell or the second battery cell in an embodiment of the utility model;

[0018] Figure 7 A schematic diagram showing the structure of the circuit board described in the embodiment of the utility model;

[0019] Figure 8 A side view of the circuit board in the embodiment of the present utility model is shown;

[0020] Fig. 9 A schematic diagram showing the structure of the electronic device body in an embodiment of the utility model.

[0021] Reference numerals:

[0022] 10: first battery cell; 11: first pole ear; 12: first top sealing area;

[0023] 20: second battery cell; 21: second pole ear; 22: second top sealing area;

[0024] 30: circuit board; 31: connection area; 32: fabric area;

[0025] 40: frame; 41: first clamping portion; 411: first groove;

[0026] 50: electronic device body; 51: accommodating cavity; 52: second clamping portion; 521: first protrusion;

[0027] 60: Bracket. DETAILED DESCRIPTION

[0028] Embodiments of the present invention will be described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0029] The term "first" or "second" in the specification and claims of the present application may include one or more of the features explicitly or implicitly. In the description of the present invention, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0030] In the description of the present invention, it is to 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”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, 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 limiting the present invention.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Reference Figure 1 , showing a schematic diagram of the structure of a battery pack in the prior art; referring to Figure 2 , showing a schematic diagram of the structure of the first battery cell or the second battery cell in the prior art; referring to Figure 3 , shows a schematic structural diagram of a circuit board in the prior art.

[0033] like Figures 1 to 3 As shown, in the prior art, in order to increase the capacity of the electronic device battery to meet the power demand of the electronic device, a dual-cell battery is usually set in the electronic device. The dual-cell battery includes a first cell 10 and a second cell 20 arranged at an interval, there is a gap between the first cell 10 and the second cell 20, and the circuit board 30 is transversely arranged in the gap.

[0034] Among them, a first top sealing area 12 is provided at the end of the first battery cell 10 close to the second battery cell 20, and the first top sealing area 12 extends along the extension direction of the first battery cell 10 and the second battery cell 20. The first pole ear 11 also extends along the extension direction of the first battery cell 10 and the second battery cell 20, and one end of the first pole ear 11 is connected to the first top sealing area 12, and the other end of the first pole ear 11 is connected to the surface of the circuit board 30, so that the first battery cell 10 and the circuit board 30 are connected.

[0035] Similarly, the second battery cell 20 is provided with a second top sealing area 22 at the end close to the first battery cell 10, and the second top sealing area 22 also extends along the extension direction of the first battery cell 10 and the second battery cell 20. The second pole ear 21 also extends along the extension direction of the first battery cell 10 and the second battery cell 20, and one end of the second pole ear 21 is connected to the second top sealing area 22, and the other end of the second pole ear 21 is connected to the surface of the circuit board 30, so that the second battery cell 20 and the circuit board 30 are connected.

[0036] In the above arrangement, when the first pole lug 11 and the second pole lug 21 are connected to the circuit board 30, the first pole lug 11 and the second pole lug 12 need to occupy a larger surface of the circuit board 30, so that the effective layout area of ​​the circuit board 30 is smaller. It is usually necessary to increase the width of the circuit board 30 to solve the problem of insufficient effective layout area of ​​the circuit board 30. However, the increase in the width of the circuit board 30 will further affect the arrangement space of the first battery cell 10 and the second battery cell 20, thereby affecting the battery capacity of the electronic device.

[0037] Reference Figure 4 , showing a top view of the battery pack described in the embodiment of the utility model; referring to Figure 5 , showing a side view of the battery pack in the embodiment of the present utility model; referring to Figure 6 , showing a schematic diagram of the structure of the first battery cell or the second battery cell in an embodiment of the utility model; referring to Figure 7 , showing a schematic diagram of the structure of the circuit board in the embodiment of the utility model; referring to Figure 8 , shows a side view of the circuit board described in the embodiment of the utility model.

[0038] like Figures 4 to 8 As shown, an embodiment of the utility model discloses a battery pack, which includes a first battery cell 10 and a second battery cell 20 arranged at an interval, and a circuit board 30 arranged between the first battery cell 10 and the second battery cell 20, wherein the thickness direction of the circuit board 30 is the same as the direction in which the first battery cell 10 and the second battery cell 20 are arranged at an interval; the circuit board 30 is provided with a connection area 31, and the connection area 31 protrudes from the circuit board 30 along the thickness direction of the first battery cell 10 and the second battery cell 20; the first pole ear 11 of the first battery cell 10 is connected to one side of the connection area 31, and the second pole ear 21 of the second battery cell 20 is connected to the other side of the connection area 31.

[0039] The battery pack disclosed in the embodiment of the utility model is used in an electronic device. When the space of the accommodating cavity 51 in the electronic device body 50 is fixed, the battery capacity of the electronic device is increased by the battery pack to enhance the user experience.

[0040] It should be noted that the electronic device in the embodiment of the utility model can be a mobile phone, a tablet computer, or other electronic devices that require a battery pack. In the embodiment of the utility model, there are no excessive restrictions on the specific type of electronic device, and any electronic device that requires a battery pack falls within the protection scope of the utility model. The following description will be made using the electronic device being a mobile phone as an example.

[0041] like Figures 4 to 8 As shown, the battery pack in the embodiment of the utility model includes a first battery cell 10, a second battery cell 20 and a circuit board 30. The first battery cell 10 and the second battery cell 20 are arranged at intervals, and there is a gap between the first battery cell 10 and the second battery cell 20. The circuit board 30 is arranged in the gap between the first battery cell 10 and the second battery cell 20, and the thickness direction of the circuit board 30 is the same as the direction in which the first battery cell 10 and the second battery cell 20 are arranged at intervals.

[0042] In the embodiment of the utility model, the circuit board 30 is arranged between the first battery cell 10 and the second battery cell 20, and the thickness direction of the circuit board 30 is set to be the same as the direction in which the first battery cell 10 and the second battery cell 20 are spaced apart from each other, so as to reduce the space occupied by the circuit board 30 in the accommodating cavity 51. This can increase the arrangement space of the first battery cell 10 and the second battery cell 20, thereby improving the capacity of the battery pack.

[0043] like Figure 7 As shown, the circuit board 30 in the embodiment of the utility model is provided with a connection area 31, and the connection area 31 protrudes from the circuit board 30 along the thickness direction of the first battery cell 10 and the second battery cell 20. Among them, the end of the first battery cell 10 close to the second battery cell 20 is provided with a first pole ear 11, and the first pole ear 11 is connected to the side of the connection part 31 close to the first battery cell 10 to conduct the first battery cell 10 and the circuit board 30. The end of the second battery cell 20 close to the first battery cell 10 is provided with a second pole ear 21, and the second pole ear 21 is connected to the side of the connection part 31 close to the second battery cell 20 to conduct the second battery cell 20 and the circuit board 30.

[0044] In the embodiment of the utility model, the connection area 31 is provided on the circuit board 30, and the connection area 31 protrudes from the circuit board 30 along the thickness direction of the first battery cell 10 and the second battery cell 20. Therefore, the first battery cell 10 and the second battery cell 20 can be connected to the circuit board 30 through the connection area 31, so as to increase the area of ​​the layout area 32 of the circuit board 30, avoid the first battery cell 10 and the second battery cell 20 being directly connected to the circuit board 30, occupying the surface area of ​​the circuit board 30, and making the area of ​​the layout area 32 of the circuit board 30 small, which cannot meet the layout requirements of the circuit board 30.

[0045] It should be noted that the circuit board 30 in the embodiment of the utility model includes a printed circuit board and a flexible circuit board, and the flexible circuit board is connected to the printed circuit board. In the embodiment of the utility model, the copper foil of the printed circuit board can be extended to the outside of the circuit board along the thickness direction of the first battery cell 10 and the second battery cell 20 to form a connection area 31.

[0046] Of course, the above is only a specific example of the formation of the connection area 31, and is not intended to be a limitation of the embodiments of the present invention. In actual applications, technicians can set other components of the circuit board 30 as the connection area 31 as needed.

[0047] In an embodiment of the utility model, the circuit board 30 is disposed between the first battery cell 10 and the second battery cell 20, and the thickness direction of the circuit board 30 is set to be the same as the direction in which the first battery cell 10 and the second battery cell 20 are spaced apart from each other, so as to reduce the space occupied by the circuit board 30, thereby increasing the arrangement space of the first battery cell 10 and the second battery cell 20 and improving the capacity of the battery.

[0048] Furthermore, by providing a connection area 31 on the circuit board 30, and the connection area 31 protrudes from the circuit board 30 along the thickness direction of the first battery cell 10 and the second battery cell 20. Thus, the first battery cell 10 and the second battery cell 20 can be connected to the circuit board 30 through the connection area 31, so as to increase the effective layout area of ​​the circuit board 30, and avoid the first battery cell 10 and the second battery cell 20 being connected to the circuit board 30 and occupying the surface of the circuit board 30.

[0049] Alternatively, if Figure 5 and Figure 6 As shown, the first battery cell 10 in the embodiment of the utility model includes a first top sealing area 12, the first top sealing area 12 is bent toward the end of the first battery cell 10, one end of the first pole ear 11 is connected to the first top sealing area 12, and the other end is connected to one side of the connection area 31; the second battery cell 20 includes a second top sealing area 22, the second top sealing area 22 is bent toward the end of the second battery cell 20, one end of the second pole ear 21 is connected to the second top sealing area 22, and the other end is connected to the other side of the connection area 31.

[0050] like Figure 5 and Figure 6 As shown, the first top sealing area 12 of the first battery cell 10 is disposed at the end of the first battery cell 10 close to the second battery cell 20, and the first top sealing area 12 is bent toward the end of the first battery cell 10 to reduce the space occupied by the first top sealing area 12, thereby increasing the arrangement space of the first battery cell 10 and the second battery cell 20 and improving the capacity of the battery. Exemplarily, the first top sealing area 12 is bent to be parallel to the end of the first battery cell 10.

[0051] Furthermore, in the embodiment of the utility model, one end of the first pole ear 11 is connected to the first top sealing area 12, and the other end of the first pole ear 11 is connected to the side of the connection area 31 close to the first battery cell 10, so that the first battery cell 10 can be connected to the circuit board 30 through the first pole ear 11.

[0052] The second top sealing area 22 of the second battery cell 20 in the embodiment of the utility model is arranged at the end of the second battery cell 20 close to the first battery cell 10, and the second top sealing area 22 is bent toward the end of the second battery cell 20 to reduce the space occupied by the second top sealing area 22, thereby increasing the arrangement space of the first battery cell 10 and the second battery cell 20, and improving the capacity of the battery. Exemplarily, the first top sealing area 22 is bent to be parallel to the end of the second battery cell 20.

[0053] Furthermore, in the embodiment of the utility model, one end of the second pole ear 21 is connected to the second top sealing area 22, and the other end of the second pole ear 21 is connected to the side of the connection area 31 close to the second battery cell 20, so that the second battery cell 20 can be connected to the circuit board 30 through the second pole ear 21.

[0054] Alternatively, if Figures 5 to 7 As shown, the first pole tab 11 in the embodiment of the utility model is at least partially bent to be parallel to the connection area 31 and connected to one side of the connection area 31; the second pole tab 21 is at least partially bent to be parallel to the connection area 31 and connected to the other side of the connection area 31.

[0055] In the embodiment of the utility model, the end of the first pole tab 11 away from the first battery cell 10 is bent to be parallel to the connection area 31, and the portion is connected to the side of the connection area 31 close to the first battery cell 10, so as to connect the first pole tab 11 to the connection area 31. In addition, the end of the first pole tab 11 is bent to be parallel to the connection area 31, so that the space occupied by the first pole tab 11 is also small, so that the arrangement space of the first battery cell 10 and the second battery cell 20 can be further increased, and the capacity of the battery can be improved.

[0056] In the embodiment of the utility model, the end of the second pole tab 21 away from the second battery cell 20 is bent to be parallel to the connection area 31, and the portion is connected to the side of the connection area 31 close to the second battery cell 20, so as to connect the second pole tab 21 to the connection area 31. In addition, the end of the second pole tab 21 is bent to be parallel to the connection area 31, so that the space occupied by the second pole tab 21 is relatively small, so that the arrangement space of the first battery cell 10 and the second battery cell 20 can be further increased, and the capacity of the battery can be improved.

[0057] Alternatively, if Figure 7 As shown, the connection area 31 in the embodiment of the utility model includes a plurality of connection areas 31 , and the plurality of connection areas 31 are arranged at intervals along the extension direction of the circuit board 30 .

[0058] In the embodiment of the utility model, a plurality of connection areas 31 are provided, and the plurality of connection areas 31 are arranged at intervals along the extension direction of the circuit board 30. The first battery cell 10 and the second battery cell 20 are connected through the plurality of connection areas 31, so that the connection between the circuit board 30 and the first battery cell 10 and the second battery cell 20 is more reliable.

[0059] Reference Fig. 9 , shows a schematic structural diagram of the electronic device body described in an embodiment of the utility model.

[0060] like Fig. 9 As shown, an embodiment of the utility model further discloses an electronic device, which includes an electronic device body 50 and the battery pack described in the above embodiment, wherein a accommodating cavity 51 is provided in the electronic device body 50, and the battery pack is snapped into the accommodating cavity 51.

[0061] In the embodiment of the utility model, a receiving cavity 51 is provided in the electronic device body 50, and the battery pack is clamped in the receiving cavity 51 to facilitate installation and removal of the battery pack.

[0062] Furthermore, compared with the prior art installation method of bonding the battery pack to the accommodating cavity 51 by means of PET material or double-sided tape, the installation method of the battery pack in the embodiment of the utility model saves the thickness space of the PET material and the double-sided tape, thereby improving the energy density of the battery pack.

[0063] Optionally, the first battery cell 10 and the second battery cell 20 are arranged at intervals along the length direction of the electronic device body 50 .

[0064] In the embodiment of the utility model, the first battery cell 10 and the second battery cell 20 are arranged at intervals along the length direction of the electronic device body 50. That is to say, the battery pack in the embodiment of the utility model adopts the vertical dual-cell layout C-PACK technology. The vertical dual-cell layout C-PACK technology can effectively avoid the problem of the interference between the top side sealing edge of the battery cell and the circuit board caused by the side-by-side layout of the dual batteries. The first gap between the first battery cell 10 and the circuit board 30 and the second gap between the second battery cell 20 and the circuit board 30 are made smaller to further improve the energy density of the battery.

[0065] Alternatively, if Figure 4 As shown, the battery pack in the embodiment of the utility model further includes a frame 40 , which covers the battery pack; a first clamping portion 41 is provided on the frame 40 , a second clamping portion 52 is provided in the accommodating cavity 51 , and the first clamping portion 41 is clamped to the second clamping portion 52 .

[0066] In the embodiment of the utility model, low-pressure injection molding can be used to cover the frame 40 on the outside of the battery pack. A first clamping portion 41 is provided on the frame 40, and a second clamping portion 52 is provided in the accommodating cavity 51. The first clamping portion 41 is clamped to the second clamping portion 52, so that the battery pack is installed in the electronic device body, which facilitates the installation and removal of the battery pack.

[0067] It should be noted that the frame 40 in the embodiment of the utility model can be a plastic frame or other types of frames 40. In the embodiment of the utility model, there is no specific restriction on the specific material and molding method of the frame 40. In actual applications, technicians can set it as needed.

[0068] Optionally, the first clamping portion 41 includes one of a protrusion and a groove, and the second clamping portion 52 includes the other of the protrusion and the groove.

[0069] In order to facilitate the installation of the battery pack and the production of electronic equipment. In the embodiment of the utility model, the first clamping portion 41 and the second clamping portion 52 are set as a protrusion and a groove. And when the first clamping portion 41 is a groove, the second clamping portion 52 is set as a protrusion, and the protrusion is clamped in the groove to complete the installation of the battery pack. When the first clamping portion 41 is a protrusion, the second clamping portion 52 is set as a groove, and the protrusion is clamped in the groove to complete the installation of the battery pack.

[0070] Alternatively, if Figure 4 and Fig. 9 As shown, the first clamping parts 41 in the embodiment of the utility model include multiple first clamping parts 41, and the multiple first clamping parts 41 are arranged at intervals around the frame 40; the second clamping parts 52 also include multiple second clamping parts 52, and each second clamping part 52 is arranged corresponding to a first clamping part 41.

[0071] like Figure 4 and Fig. 9 As shown, in the embodiment of the utility model, the first clamping part 41 and the second clamping part 52 are both provided in plurality, and the plurality of first clamping parts 41 are arranged at intervals around the frame 40, and each second clamping part 52 is provided correspondingly to a first clamping part 41. The battery pack is installed by clamping the plurality of first clamping parts 41 with the corresponding second clamping parts 52, thereby improving the reliability of the battery pack installation.

[0072] It should be noted that in the embodiment of the utility model, a buckle position can be added to the end of the frame 40 away from the second battery cell 20 by injection molding, and the buckle position is interlocked with the buckle position at the corresponding position in the accommodating cavity 51 to removably connect the battery pack to the accommodating cavity 51.

[0073] At the same time, a protrusion can be set at the end of the frame 40 away from the first battery cell 10 by injection molding, and an avoidance groove can be set at the corresponding position of the accommodating cavity 51, and the protrusion can be snapped into the avoidance groove to removably connect the battery pack to the accommodating cavity 51.

[0074] Alternatively, if Figure 4 and Fig. 9 As shown, at least one first clamping portion 41 includes a first groove 411, which is arranged between the first battery cell 10 and the second battery cell 20 and is spaced apart from the circuit board 30; at least one second clamping portion 52 includes a first protrusion 521, which is arranged corresponding to the first groove 411.

[0075] like Figure 4 and Fig. 9 As shown, in the embodiment of the utility model, two first grooves 411 can be set in the middle area of ​​the frame 40 by injection molding, and the two first grooves 411 are located in the gap between the first battery cell 10 and the second battery cell 20. Along the extension direction of the circuit board 30, one first groove 411 is set at one end of the circuit board 30, and the other first groove 411 is set at the other end of the circuit board 30. And the two first grooves 411 and the circuit board 30 are spaced apart along the extension direction of the circuit board 30. To avoid the mutual influence between the setting of the two first grooves 411 and the arrangement of the circuit board 30. Two first protrusions 521 are set at the corresponding positions of the accommodating cavity 51, and the two first grooves 411 are snapped into the corresponding first protrusions 521, so that the battery pack is installed in the accommodating cavity 51.

[0076] Alternatively, if Fig. 9 As shown, the electronic device in the embodiment of the utility model further includes a bracket 60 , wherein one end of the bracket 60 is detachably connected to the electronic device body 50 , and the other end is pressed onto a side of the bottom wall of the battery pack away from the accommodating cavity 51 .

[0077] In an embodiment of the utility model, one end of the bracket 60 is detachably connected to the electronic device body 50, and the other end of the bracket 60 is pressed onto the side of the battery pack away from the bottom wall of the accommodating cavity, so that the battery pack installed in the accommodating cavity 51 can be fixed by the bracket 60 to prevent the battery pack from slipping out of the accommodating cavity 51, and at the same time, it is also convenient for the installation and removal of the battery pack.

[0078] It should be noted that the bracket 60 in the embodiment of the utility model can be a BOX bracket of a mobile phone. Of course, in the embodiment of the utility model, there are no excessive restrictions on the specific type of the bracket 60. In actual applications, technicians can select a suitable bracket 60 as needed.

[0079] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0080] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A battery pack, characterized in that: include: A first battery cell (10) and a second battery cell (20) arranged at an interval, and a circuit board (30) arranged between the first battery cell (10) and the second battery cell (20), wherein the thickness direction of the circuit board (30) is the same as the direction in which the first battery cell (10) and the second battery cell (20) are arranged at an interval; The circuit board (30) is provided with a connection area (31), and the connection area (31) protrudes from the circuit board (30) along the thickness direction of the first battery cell (10) and the second battery cell (20); The first pole lug (11) of the first battery cell (10) is connected to one side of the connection area (31), and the second pole lug (21) of the second battery cell (20) is connected to the other side of the connection area (31).

2. The battery pack according to claim 1, characterized in that: The first battery cell (10) comprises a first top-sealing region (12), the first top-sealing region (12) being bent toward an end portion close to the first battery cell (10), one end of the first electrode tab (11) being connected to the first top-sealing region (12), and the other end being connected to one side of the connecting region (31); The second battery cell (20) comprises a second top-sealing area (22), the second top-sealing area (22) being bent toward an end portion close to the second battery cell (20), one end of the second electrode tab (21) being connected to the second top-sealing area (22), and the other end being connected to the other side of the connection area (31).

3. The battery pack according to claim 2, characterized in that: The first electrode tab (11) is at least partially bent to be parallel to the connection area (31) and connected to one side of the connection area (31); The second pole tab (21) is at least partially bent to be parallel to the connection area (31), and is connected to the other side of the connection area (31).

4. The battery pack according to claim 1, characterized in that: The connection areas (31) include a plurality of connection areas (31), and the plurality of connection areas (31) are arranged at intervals along the extension direction of the circuit board (30).

5. An electronic device, characterized in that: The invention comprises an electronic device body and a battery pack according to any one of claims 1 to 4, wherein: The electronic device body (50) is provided with a receiving cavity (51), and the battery pack is snap-connected in the receiving cavity (51).

6. The electronic device according to claim 5, characterized in that: The first battery cell (10) and the second battery cell (20) are arranged at intervals along the length direction of the electronic device body (50).

7. The electronic device according to claim 5, characterized in that: The battery pack further comprises a frame (40), wherein the frame (40) covers the battery pack; The frame (40) is provided with a first clamping portion (41), the accommodating cavity (51) is provided with a second clamping portion (52), and the first clamping portion (41) is clamped to the second clamping portion (52).

8. The electronic device according to claim 7, characterized in that: The first clamping portion (41) includes one of a protrusion and a groove, and the second clamping portion (52) includes the other of a protrusion and a groove.

9. The electronic device according to claim 7, characterized in that: The first clamping parts (41) include a plurality of first clamping parts (41), and the plurality of first clamping parts (41) are arranged at intervals around the frame (40); The second clamping portion (52) also includes a plurality of them, and each of the second clamping portion (52) is arranged corresponding to one of the first clamping portions (41).

10. The electronic device according to claim 9, characterized in that: At least one of the first clamping portions (41) comprises a first groove (411), wherein the first groove (411) is arranged between the first battery core (10) and the second battery core (20), and is spaced apart from the circuit board (30); At least one of the second clamping portions (52) comprises a first protrusion (521), and the first protrusion (521) is arranged corresponding to the first groove (411).

11. The electronic device according to any one of claims 5 to 10, characterized in that: The electronic device further comprises a bracket (60), wherein: One end of the bracket (60) is detachably connected to the electronic device body (50), and the other end is pressed onto a side of the battery pack away from the bottom wall of the accommodating cavity (51).

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