Battery module and electronic equipment

Abstract

The utility model discloses a battery module and electronic equipment, and relates to the technical field of battery module packaging. The battery module comprises a battery cell and a shell, the shell wraps the battery cell, the shell comprises a shell body and a cover plate which are connected, the cover plate and the shell body define a containing cavity, the battery cell is arranged in the containing cavity, the cover plate is used for being connected with a middle frame of the electronic equipment, and the cover plate is used for being connected with the middle frame of the electronic equipment in the direction perpendicular to the cover plate. The contour line of the orthographic projection of the cover plate coincides with the contour line of the orthographic projection of the middle frame so as to define an accommodating space, and both the battery cell and the shell can be located in the accommodating space. According to the scheme, the problem that the thickness of current electronic equipment is large can be solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of battery module packaging, and particularly relates to a battery module and an electronic device. BACKGROUND

[0002] As a power supply device of an electronic device, a battery module is used to provide power for the normal operation of the electronic device. The battery module mainly comprises a battery cell, a protection plate and a shell, wherein the battery cell is used to store and release power, the protection plate is used to provide overcharge, overdischarge and short circuit protection for the battery module, and the shell is used to protect the battery cell and the protection plate.

[0003] At present, the battery module of the electronic device on the market is usually installed in the interior of the electronic device, and needs to occupy a certain space in the electronic device. In this case, the thickness of the entire electronic device is large. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the embodiments of the application is to provide a battery module and an electronic device, which can solve the problem of large thickness of the electronic device.

[0005] In order to solve the above technical problem, the application is implemented as follows:

[0006] In a first aspect, the embodiments of the application provide a battery module for an electronic device, comprising a battery cell and a shell, the shell wrapping the battery cell,

[0007] The shell comprises a shell body and a cover plate connected with each other, the cover plate and the shell body form a containing cavity, the battery cell is arranged in the containing cavity, the cover plate is used to be connected with a middle frame of the electronic device, and in a direction perpendicular to the cover plate, the contour line of the orthogonal projection of the cover plate coincides with the contour line of the orthogonal projection of the middle frame to form a containing space, and the battery cell and the shell body can be located in the containing space.

[0008] Optionally, the battery module further comprises a protection plate, the protection plate is electrically connected with the battery cell, the protection plate and the battery cell are arranged on the same side of the cover plate, and the protection plate is located outside the containing cavity.

[0009] Optionally, the shell body comprises a main body part, the main body part has a containing groove, the cover plate comprises a first part and a second part connected with each other, the second part is arranged around at least part of the first part, the first part is arranged at the groove opening of the containing groove to form the containing cavity, and the second part is used to be connected with the middle frame.

[0010] Optionally, the shell body further comprises a flange connected with the main body part, the flange is arranged outside the containing groove, and the flange is connected with and arranged in close contact with the second part.

[0011] Optionally, the turn-up extends to the edge of the cover plate in a direction away from the accommodating groove.

[0012] The groove of the accommodating groove comprises a first edge, a second edge, a third edge and a fourth edge connected in sequence, and at least one of the first edge, the second edge, the third edge and the fourth edge is provided with the turn-up.

[0013] Optionally, the protection plate is arranged on the turn-up, and one side of the turn-up away from the cover plate is provided with first and second positioning portions arranged at intervals, the first positioning portion is in positioning cooperation with the first end portion of the protection plate, the second positioning portion is in positioning cooperation with the second end portion of the protection plate, and the protection plate is opposite to the main body portion.

[0014] Optionally, the protection plate is arranged on the cover plate, and one side of the cover plate facing the battery cell is provided with first and second positioning portions arranged at intervals, the first and second positioning portions are both located outside the accommodating cavity, the first positioning portion is in positioning cooperation with the first end portion of the protection plate, the second positioning portion is in positioning cooperation with the second end portion of the protection plate, and the protection plate is opposite to the main body portion of the shell.

[0015] Optionally, the first and second positioning portions each comprise a first plate segment and a second plate segment connected in sequence, the second plate segment is bent relative to the first plate segment, the second plate segment is opposite to the main body portion, the first end portion of the protection plate is located between the main body portion and the second plate segment of the first positioning portion, the second end portion of the protection plate is located between the main body portion and the second plate segment of the second positioning portion, the protection plate is in positioning cooperation with the second plate segment in the length direction of the battery module, the first plate segment of the first positioning portion is opposite to the first plate segment of the second positioning portion, and the protection plate is in positioning cooperation with the first plate segment in the width direction of the battery module.

[0016] In a second aspect, the embodiments of the present application further provide an electronic device comprising a middle frame and the battery module, the cover plate of the battery module is connected with the middle frame to enclose an accommodating space, and the battery cell and the shell are both arranged in the accommodating space.

[0017] Optionally, the battery module further comprises a protection plate, the protection plate is electrically connected with the battery cell, the protection plate and the battery cell are arranged on the same side of the cover plate, and the protection plate is located outside the accommodating cavity.

[0018] The electronic device further comprises a mainboard arranged in the accommodating space, the mainboard and the protection plate are arranged on the same side of the main body part of the shell body, and the mainboard is electrically connected with the protection plate.

[0019] In the embodiment of the present application, the shell of the battery module comprises a shell body and a cover plate connected with each other, the cover plate and the shell body form an accommodating cavity, the battery cell is arranged in the accommodating cavity, the cover plate is used for connecting with the middle frame of the electronic device, and in the direction perpendicular to the cover plate, the contour line of the orthogonal projection of the cover plate coincides with the contour line of the orthogonal projection of the middle frame to form an accommodating space, and the battery cell and the shell body can be located in the accommodating space. By using the battery module structure of the present application, when the battery module is installed on the electronic device, the cover plate of the battery module can simultaneously serve as the back shell of the electronic device, and at this time, the back shell of the electronic device does not need to be additionally arranged, that is, the back shell of the electronic device and one side wall of the shell of the battery module are combined into one, thereby reducing the thickness of the electronic device. Therefore, the embodiment of the present application can solve the problem of large thickness of the electronic device. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 An exploded view of the battery module disclosed in the embodiment of the present application;

[0021] Fig. 2 A structural schematic view of the shell disclosed in the embodiment of the present application;

[0022] Fig. 3 A partial structural schematic view of the shell disclosed in the embodiment of the present application;

[0023] Fig. 4 A sectional view of the electronic device disclosed in the embodiment of the present application.

[0024] BRIEF DESCRIPTION OF DRAWINGS

[0025] 100 - battery cell;

[0026] 200 - protection plate;

[0027] 300 - shell, 310 - shell body, 311 - first side surface, 312 - second side surface, 313 - main body part, 314 - flange, 314a - first positioning part, 314a1 - first plate segment, 314a2 - second plate segment, 314b - second positioning part, 320 - cover plate, 321 - first part, 322 - second part;

[0028] 400 - middle frame;

[0029] 500 - mainboard;

[0030] 600 - insulating adhesive paper. DETAILED DESCRIPTION

[0031] With reference to the drawings and embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are some of the embodiments of the present application, but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of the present application.

[0032] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of a kind and are not limited in number, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in an "or" relationship.

[0033] The battery module and electronic device provided by the embodiments of the present application will be described in detail below in conjunction with the drawings and specific embodiments and application scenarios.

[0034] As shown in Figs. 1 to 4 The embodiments of the present application provide a battery module, which is used in an electronic device. Optionally, the battery module can be a lithium iron phosphate battery module, a lithium nickelate battery module, a lithium manganate battery module, a lithium cobaltate battery module, etc. The embodiments of the present application do not make specific limitations in this regard.

[0035] The battery module includes a battery cell 100 and a shell 300. The shell 300 wraps the battery cell 100. The shell 300 includes a shell body 310 and a cover plate 320 connected to each other. Optionally, the shell body 310 and the cover plate 320 can be connected by welding or the like. The embodiments of the present application do not make specific limitations in this regard. The cover plate 320 and the shell body 310 enclose a receiving cavity. The battery cell 100 is arranged in the receiving cavity. Optionally, in a direction perpendicular to the cover plate 320, the orthographic projection of the battery cell 100 is located within the orthographic projection of the cover plate 320, that is, the length and width of the cover plate 320 are both greater than the length and width of the battery cell 100. The cover plate 320 is used to connect to a middle frame 400 of the electronic device. In a direction perpendicular to the cover plate 320, the contour line of the orthographic projection of the cover plate 320 coincides with the contour line of the orthographic projection of the middle frame 400, so as to enclose a receiving space. The receiving space is a sealed space. The battery cell 100 and the shell body 310 can be located in the receiving space. At this time, the cover plate 320 serves as a rear shell of the electronic device. Optionally, the mainboard, camera module, and other components of the electronic device can be arranged in the receiving space enclosed by the cover plate 320 and the middle frame 400.

[0036] In the embodiment of the present application, when the battery module is installed on the electronic device, the cover plate 320 of the battery module can simultaneously serve as the back shell of the electronic device, and thus there is no need to additionally provide the back shell of the electronic device, that is, the back shell of the electronic device and one side wall of the shell of the battery module are combined into one, thereby reducing the thickness of the electronic device. Therefore, the embodiment of the present application can solve the problem of large thickness of the electronic device.

[0037] In addition, when the cover plate 320 of the battery module serves as the back shell of the electronic device, the battery module is exposed, which is beneficial to improving the heat dissipation performance of the battery module.

[0038] Optionally, in the above scheme, since the cover plate 320 of the battery module serves as the back shell of the electronic device, there is no need to additionally provide the back shell of the electronic device, and thus the thickness of the electronic device can be reduced by 0.2-0.5 mm relative to the prior art in which the battery module is completely located inside the electronic device.

[0039] In the optional embodiment, the battery module further comprises a protection plate 200, the protection plate 200 is electrically connected with the battery cell 100, the protection plate 200 and the battery cell 100 are arranged on the same side of the cover plate 320, and the protection plate 200 is located outside the accommodating cavity. Generally, the battery cell 100 has at least two tabs, the battery cell 100 is electrically connected with the protection plate 200 through the tabs, and the tabs are used to lead out the current in the battery cell 100 to form a loop; the protection plate 200 provides overcharge, overdischarge and short circuit protection for the battery module. Optionally, the protection plate 200 and the battery cell 100 can be connected by laser welding or other welding forms, and the present application does not make a specific limitation in this regard.

[0040] Optionally, the cover plate 320 protrudes from the first side surface 311 of the shell 310, and the protection plate 200 is arranged on the side where the first side surface 311 of the shell 310 is located. Since the cover plate 320 protrudes from the first side surface 311 of the shell 310, the first side surface 311, the cover plate 320 and the middle frame 400 form an installation space, thereby facilitating the arrangement of the protection plate 200; and when the battery module is installed on the electronic device, the main board, the camera module and other components of the electronic device can be arranged in the installation space, thereby facilitating the electrical connection between the protection plate 200 and the main board, the camera module and other components, and reducing the difficulty of wiring arrangement.

[0041] Optionally, the shell 310 has a first side 311 and a second side 312 opposite to each other in the length direction of the battery module, where the length direction specifically refers to the extending direction from the top to the bottom of the electronic device when the battery module is installed to the electronic device and the user holds the electronic device (such as a mobile phone). The size of the cover plate 320 protruding from the first side 311 is greater than the size of the cover plate 320 protruding from the second side 312, and at this time, the second side 312 forms another installation space with the cover plate 320 to facilitate the arrangement of other structures in the accommodation space, and the structures arranged on the side of the first side 311 are spaced apart from the structures arranged on the side of the second side 312 by the battery cell 100. Of course, the protective plate 200 can also be arranged on the side of the second side 312 of the shell 310, or even on the other side of the shell 310.

[0042] In an optional embodiment, the shell 310 includes a main body 313 having an accommodation groove, and the main body 313 is provided with the first side 311 and the second side 312, which are respectively the outer surfaces of the two side walls of the accommodation groove opposite to each other. The cover plate 320 includes a first part 321 and a second part 322 connected to each other, and the second part 322 is arranged around at least part of the first part 321. The first part 321 is arranged at the groove opening of the accommodation groove of the main body 313 to form the above-mentioned accommodation cavity, and the second part 322 is used to connect with the end surface of the middle frame 400 to make the middle frame 400 and the cover plate 320 fully connected. In addition, when the second part 322 is arranged around the first part 321, the peripheral surface of the shell 310, the second part 322 and the inner side surface of the middle frame 400 form an annular space to facilitate the arrangement of structures such as connection lines. Of course, the second part 322 can also be connected with the inner side surface of the middle frame 400.

[0043] In a further optional embodiment, the shell 310 further includes a flange 314 connected to the main body 313, and the flange 314 is arranged outside the accommodation groove, i.e. the flange 314 is arranged adjacent to the groove opening of the accommodation groove. The flange 314 is connected to and arranged in close contact with the second part 322, and at this time, the connection area of the shell 310 and the cover plate 320 is larger, which is beneficial to improve the connection firmness between the two and can reduce the difficulty of sealing the accommodation cavity. In addition, the arrangement of the flange 314 can improve the structural strength of the cover plate 320. Of course, the flange 314 can also not be arranged, and only the main body 313 is connected with the cover plate 320.

[0044] In a further optional embodiment, the flange 314 extends to the edge of the cover plate 320 in a direction away from the accommodating groove, at this time, the flange 314 covers a larger area of the cover plate 320, which is conducive to further improving the structural strength of the cover plate 320 and the connection firmness between the cover plate 320 and the shell 310. Of course, the flange 314 can also not extend to the edge of the cover plate 320, and can be selected according to actual needs, and the embodiments of the present application do not make specific limitations in this regard.

[0045] Optionally, since the structure of the battery cell 100 is generally a cuboid, and the cross-sectional shape thereof is a rectangle, the cross-sectional shape of the accommodating groove of the main body part 313 is a rectangle, at this time, the accommodating groove is adapted to the structure of the battery cell 100 to better wrap the battery cell 100. When the cross-sectional shape of the accommodating groove is a rectangle, at this time, the slot of the accommodating groove includes a first edge, a second edge, a third edge and a fourth edge connected in sequence, at least one of the first edge, the second edge, the third edge and the fourth edge is provided with a flange 314, and optionally, when the first edge, the second edge, the third edge and the fourth edge are all provided with a flange 314, at this time, the number of flanges 314 is four, and each flange 314 extends in a direction away from the accommodating groove, which can further improve the structural strength of the cover plate 320 and the connection firmness between the shell 310 and the cover plate 320. Optionally, when the first edge, the second edge, the third edge and the fourth edge are all provided with a flange 314, each flange 314 can extend to different edges of the cover plate 320 to further improve the structural strength of the cover plate 320.

[0046] Optionally, in any of the above embodiments, the thickness of the cover plate 320 can be less than the thickness of the shell 310; or the thickness of the cover plate 320 is greater than or equal to the thickness of the shell 310, at this time, due to the larger thickness of the cover plate 320, the corresponding structural strength is also larger, when the battery module is installed to the electronic device, the structure in the accommodating space of the electronic device can be better protected, and at the same time, the drop resistance of the electronic device is better, which is conducive to prolonging the service life of the electronic device; in addition, when the thickness of the cover plate 320 is greater than the thickness of the shell 310, at this time, the thickness of the shell 310 is smaller, which is convenient for processing and manufacturing, and can better wrap the battery cell 100, and at the same time, the manufacturing material of the shell 300 can be saved to reduce the cost.

[0047] Optionally, in any of the above embodiments, the outer surface of the shell 300 is provided with an insulating layer, and the outer surface herein specifically refers to all surfaces of the shell 300 exposed in the accommodating space, including the outer top surface, the outer side surface and the like, and the insulating layer is used to avoid the shell 300 from leaking electricity to improve the safety of the battery module. Optionally, the insulating layer can be an insulating coating, or an insulating adhesive paper, or a combination of an insulating coating and an insulating adhesive paper, and the embodiments of the present application do not make specific limitations in this regard.

[0048] Optionally, in any of the above embodiments, the shell 300 is a steel structure. Since the steel structure has a large structural strength, when the battery module is installed to the electronic device, the drop resistance of the electronic device is good, which is conducive to prolonging the service life of the electronic device. In addition, the steel structure is made of metal, and has good heat dissipation performance, which is conducive to protecting the battery module.

[0049] In another optional embodiment, the protection plate 200 is arranged on the flange 314, and the protection plate 200 and the flange 314 can be connected by welding, screw connection or the like. Alternatively, the flange 314 is provided with a first positioning portion 314a and a second positioning portion 314b arranged at intervals on the side away from the cover plate 320. Optionally, the first positioning portion 314a and the second positioning portion 314b are both located on the side of the first side surface 311 of the main body portion 313. The first positioning portion 314a is in positioning cooperation with the first end portion of the protection plate 200, and the second positioning portion 314b is in positioning cooperation with the second end portion of the protection plate 200. The protection plate 200 is opposite to the main body portion 313, so as to fix the protection plate 200 to the flange 314. This is conducive to improving the connection stability between the protection plate 200 and the battery cell 100. In addition, the protection plate 200 is fixed to the flange 314 of the shell 310 through the first positioning portion 314a and the second positioning portion 314b, which is convenient for later disassembly and maintenance.

[0050] In other optional embodiments, the protection plate 200 is arranged on the cover plate 320, and the protection plate 200 and the cover plate 320 can be connected by welding, screw connection or the like. Alternatively, the cover plate 320 is provided with a first positioning portion 314a and a second positioning portion 314b arranged at intervals on the side facing the battery cell 100. The first positioning portion 314a and the second positioning portion 314b are both located outside the accommodating cavity. The first positioning portion 314a is in positioning cooperation with the first end portion of the protection plate 200, and the second positioning portion 314b is in positioning cooperation with the second end portion of the protection plate 200. The protection plate 200 is opposite to the main body portion 313 of the shell 310. This scheme fixes the protection plate 200 to the cover plate 320 through the first positioning portion 314a and the second positioning portion 314b. This not only can improve the connection stability between the protection plate 200 and the battery cell 100, but also is convenient for later disassembly and maintenance of the protection plate 200.

[0051] In the embodiment in which the shell 310 further comprises the flange 314 connected with the main body part 313, the protection plate 200 is arranged on the cover plate 320, one side of the cover plate 320 facing the battery cell 100 is provided with the first positioning part 314a and the second positioning part 314b arranged at intervals, both the first positioning part 314a and the second positioning part 314b are located outside the accommodating cavity, the first positioning part 314a is in positioning cooperation with the first end part of the protection plate 200, and the second positioning part 314b is in positioning cooperation with the second end part of the protection plate 200, at this time, the flange 314 can be provided with an avoiding opening for avoiding the first positioning part 314a and the second positioning part 314b.

[0052] In a further optional embodiment, both the first positioning part 314a and the second positioning part 314b comprise the first plate segment 314a1 and the second plate segment 314a2 connected with each other, the second plate segment 314a2 is bent relative to the first plate segment 314a1, that is, both the first positioning part 314a and the second positioning part 314b are in L-shaped structure, the second plate segment 314a2 is opposite to the main body part 313, the first end part of the protection plate 200 is located between the main body part 313 and the second plate segment 314a2 of the first positioning part 314a, the second end part of the protection plate 200 is located between the main body part 313 and the second plate segment 314a2 of the second positioning part 314b, the protection plate 200 is in positioning cooperation with the second plate segment 314a2 in the length direction of the battery module, the first plate segment 314a1 of the first positioning part 314a is opposite to the first plate segment 314a1 of the second positioning part 314b, and the protection plate 200 is in positioning cooperation with the first plate segment 314a1 in the width direction of the battery module, that is, the distance between the first plate segment 314a1 of the first positioning part 314a and the first plate segment 314a1 of the second positioning part 314b is equal to the length of the protection plate 200. This scheme adopts the first positioning part 314a and the second positioning part 314b in L-shaped structure, and positions the protection plate 200 from different directions to improve the stability of the protection plate 200 relative to the main body part 313; in addition, the first positioning part 314a and the second positioning part 314b in this structure are simple in structure and easy to manufacture.

[0053] Optionally, the battery module further comprises the insulating adhesive paper 600 arranged between the protection plate 200 and the main body part 313 of the shell 310, the tab of the battery cell 100 passes through the insulating adhesive paper 600 and is electrically connected with the protection plate 200, so as to avoid short circuit between the protection plate 200 and the battery cell 100, which is conducive to improving the safety of the battery module.

[0054] Optionally, when the battery module is assembled, an insulating adhesive paper can be arranged on the surface of the protection plate 200 (the insulating adhesive paper and the insulating adhesive paper 600 arranged between the protection plate 200 and the first side surface 311 of the shell 310 are different structures, and are arranged on two opposite sides of the protection plate 200, respectively) to avoid short circuit between the protection plate 200 and other structures in the electronic device.

[0055] Based on the battery module disclosed in the embodiments of the present application, the embodiments of the present application further disclose an electronic device, which comprises a middle frame 400 and the battery module described in any of the above embodiments. The cover plate 320 of the battery module is connected with the middle frame 400 to form an accommodation space. The battery cell 100 and the shell 310 are arranged in the accommodation space.

[0056] In an optional embodiment, the battery module further comprises a protection plate 200, the protection plate 200 is electrically connected with the battery cell 100, the protection plate 200 and the battery cell 100 are arranged on the same side of the cover plate 320, and the protection plate 200 is located outside the accommodation cavity. Optionally, the length direction of the battery module is the same as the length direction of the electronic device. In the length direction of the electronic device, the length direction specifically refers to the extending direction from the top to the bottom of the electronic device (such as a mobile phone) in the state that a user holds the electronic device. The shell 310 has a first side surface 311, the cover plate 320 protrudes from the first side surface 311, and the protection plate 200 is arranged on the first side surface 311. The electronic device further comprises a mainboard 500, the mainboard 500 is arranged in the accommodation space, the mainboard 500 and the protection plate 200 are arranged on the same side of the main body part 313 of the shell 310, and the mainboard 500 is electrically connected with the protection plate 200. In this scheme, the mainboard 500 and the protection plate 200 are arranged on the same side of the battery cell 100, so that the protection plate 200 and the mainboard 500 are centrally arranged to facilitate electrical connection between the two. In addition, other structures electrically connected with the mainboard 500, such as a camera module, can be arranged in the space, so as to be modularly arranged to facilitate the arrangement of the connection lines.

[0057] Optionally, the cover plate 320 and the middle frame 400 can be fixedly connected by adhesion, welding or the like. Alternatively, in other embodiments, the cover plate 320 and the middle frame 400 can be detachably connected to facilitate replacement of the battery module. Optionally, the cover plate 320 and the middle frame 400 can be connected by snap connection, screw connection or the like, and the embodiments of the present application do not make specific limitations in this regard.

[0058] The electronic device disclosed in the embodiments of the present application can be a smart phone, a tablet computer, an electronic book reader, a wearable device (such as a smart watch), an electronic game console or the like, and the embodiments of the present application do not make specific limitations on the type of the electronic device.

[0059] The embodiments of the present application are described above with reference to the accompanying drawings, but the present application is not limited to the specific embodiments described above, and the specific embodiments described above are merely illustrative, but not restrictive, and a person of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims.

Claims

1. A battery module for use in electronic devices, characterized in that, It includes a battery cell (100) and a housing (300) that encloses the battery cell (100). The outer casing (300) includes a connected housing (310) and a cover plate (320). The cover plate (320) and the housing (310) form a receiving cavity. The battery cell (100) is disposed in the receiving cavity. The cover plate (320) is used to connect with the middle frame (400) of the electronic device. In a direction perpendicular to the cover plate (320), the outline of the orthographic projection of the cover plate (320) coincides with the outline of the orthographic projection of the middle frame (400) to form a receiving space. Both the battery cell (100) and the housing (310) can be located within the receiving space.

2. The battery module according to claim 1, characterized in that, The battery module also includes a protection board (200), which is electrically connected to the battery cell (100). The protection board (200) and the battery cell (100) are disposed on the same side of the cover plate (320), and the protection board (200) is located outside the receiving cavity.

3. The battery module according to claim 2, characterized in that, The housing (310) includes a main body (313) having a receiving groove, and the cover plate (320) includes a first part (321) and a second part (322) connected together, the second part (322) being disposed around at least a portion of the first part (321), the first part (321) being disposed at the opening of the receiving groove to form the receiving cavity, and the second part (322) being used to connect with the middle frame (400).

4. The battery module according to claim 3, characterized in that, The housing (310) also includes a flange (314) connected to the main body (313), the flange (314) being disposed outside the receiving groove, and the flange (314) being connected to and fitted to the second part (322).

5. The battery module according to claim 4, characterized in that, The flange (314) extends in a direction away from the receiving groove to the edge of the cover plate (320); The groove of the receiving groove includes a first edge, a second edge, a third edge and a fourth edge connected end to end in sequence, and at least one of the first edge, the second edge, the third edge and the fourth edge is provided with the flange (314).

6. The battery module according to claim 4, characterized in that, The protective plate (200) is disposed on the flange (314). The flange (314) has a first positioning part (314a) and a second positioning part (314b) arranged at intervals on the side opposite to the cover plate (320). The first positioning part (314a) is positioned and engaged with the first end of the protective plate (200), and the second positioning part (314b) is positioned and engaged with the second end of the protective plate (200). The protective plate (200) is opposite to the main body (313).

7. The battery module according to claim 2, characterized in that, The protective plate (200) is disposed on the cover plate (320). The cover plate (320) has a first positioning part (314a) and a second positioning part (314b) arranged at intervals on the side facing the battery cell (100). The first positioning part (314a) and the second positioning part (314b) are both located outside the receiving cavity. The first positioning part (314a) is positioned and engaged with the first end of the protective plate (200), and the second positioning part (314b) is positioned and engaged with the second end of the protective plate (200). The protective plate (200) is opposite to the main body (313) of the housing (310).

8. The battery module according to claim 6 or 7, characterized in that, Both the first positioning part (314a) and the second positioning part (314b) include a connected first plate segment (314a1) and a second plate segment (314a2). The second plate segment (314a2) is bent relative to the first plate segment (314a1). The second plate segment (314a2) is opposite to the main body part (313). The first end of the protective plate (200) is located between the main body part (313) and the second plate segment (314a2) of the first positioning part (314a). The second end of the protective plate (200) is located between the main body part (313) and the second plate segment (314a2) of the first positioning part (314a). The end is located between the main body (313) and the second plate segment (314a2) of the second positioning part (314b). The protective plate (200) and the second plate segment (314a2) are positioned and engaged in the length direction of the battery module. The first plate segment (314a1) of the first positioning part (314a) is opposite to the first plate segment (314a1) of the second positioning part (314b). The protective plate (200) and the first plate segment (314a1) are positioned and engaged in the width direction of the battery module.

9. An electronic device, characterized in that, The battery module includes a middle frame (400) and a battery module according to any one of claims 1 to 8, wherein the cover plate (320) of the battery module is connected to the middle frame (400) to form an accommodating space, and the battery cell (100) and the housing (310) are both disposed within the accommodating space.

10. The electronic device according to claim 9, characterized in that, The battery module also includes a protection board (200), which is electrically connected to the battery cell (100). The protection board (200) and the battery cell (100) are disposed on the same side of the cover plate (320), and the protection board (200) is located outside the receiving cavity. The electronic device also includes a motherboard (500), which is disposed within the accommodating space. The motherboard (500) and the protection board (200) are disposed on the same side of the main body (313) of the housing (310), and the motherboard (500) is electrically connected to the protection board (200).

Images