Batteries and electronic devices

Abstract

The present application relates to the field of battery energy technology, and in particular to a battery and electronic device. The battery includes: a battery body, the end of the battery body is provided with a top seal and a pole ear extending from the top seal; an end shell assembly, located at the end of the battery body, the top seal extends into the interior of the end shell assembly, one side of the end shell assembly is provided with a connecting piece, and the other side of the end shell assembly is provided with a terminal, the terminals are electrically connected to the connecting pieces, and the connecting pieces are electrically connected to the pole ears; a glue injection part is provided between the battery body and the end shell assembly to fix the battery body and the end shell assembly. The end shell assembly of the battery can play a role of switching, and the orientation of the terminals and the connecting pieces on the end shell assembly can be set as needed to meet the application scenario of the battery, thereby improving the wide application of the battery.

Description

Technical Field

[0001] The present application relates to the field of battery energy technology, and in particular to a battery and electronic equipment. Background Art

[0002] At present, batteries are fixedly installed inside household appliances and consumer electronic products. Household appliances and consumer electronic products need to be connected to battery cells through electrical connection structures such as FPC (Flexible Printed Circuit) or battery protection boards to enable batteries to power household appliances and consumer electronic products. Generally, FPC and battery protection boards are fixed to the battery cell package, which brings problems: since the FPC and battery protection board packages are fixed and the FPC and battery protection board are generally only applicable to a certain type of equipment, the connection between the battery and different electrical equipment is limited. Utility Model Content

[0003] Based on this, the present application provides a battery and an electronic device to solve the problem in the related art that the battery structure is fixed, which limits the application of the battery in different fields.

[0004] In one aspect, the present application provides a battery, comprising:

[0005] A battery body, wherein the end of the battery body is provided with a top sealing edge and a pole ear extending from the top sealing edge;

[0006] An end shell assembly is located at the end of the battery body, a connecting piece is provided on one side of the end shell assembly, and a terminal is provided on the other side of the end shell assembly, the terminal is electrically connected to the connecting piece, and the connecting piece is electrically connected to the tab;

[0007] The glue injection part is arranged between the battery body and the end shell assembly to fix the battery body and the end shell assembly.

[0008] In one possible implementation, the end shell assembly includes an end shell and an adapter plate, the end shell is provided with an installation groove, a snap-fit ​​groove and a hole, the adapter plate is embedded in the installation groove, the connecting piece and the terminal are respectively connected to the opposite sides of the adapter plate, the hole is arranged opposite to the terminal, and the top seal edge is snapped in the snap-fit ​​groove.

[0009] In a possible implementation, the top sealing edge is bent relative to the length direction of the battery body, and a side of the top sealing edge facing away from the battery body abuts against a side wall of the locking groove.

[0010] In one possible implementation, the length of the end shell assembly is equal to the width of the battery body; and / or,

[0011] The dimension of the end shell assembly in the length direction of the battery body is 2mm-8mm; and / or,

[0012] The number of the terminals and the number of the connecting pieces are two respectively, the two terminals are electrically connected to the two connecting pieces respectively, and the two connecting pieces are electrically connected to the pole ears with different polarities respectively.

[0013] In a possible implementation, a mounting portion is provided on the end shell, and the engaging groove is provided on the mounting portion.

[0014] In a possible implementation, the engaging groove includes a first side wall and a second side wall that are arranged opposite to each other, the width of the first side wall is greater than the width of the second side wall, and the first side wall abuts against a side of the top sealing edge facing away from the battery body.

[0015] In a possible implementation, a projection of the hole in the thickness direction of the adapter plate covers a projection of the terminal in the thickness direction of the adapter plate.

[0016] In a possible implementation, the connecting piece includes a first connecting portion and a second connecting portion that are connected to each other, the first connecting portion is connected to the adapter plate, and the second connecting portion is connected to the pole ear.

[0017] In a possible implementation, the adapter plate is perpendicular to the thickness direction of the battery body; and / or,

[0018] The adapter plate is perpendicular to the length direction of the battery body.

[0019] In a possible implementation, the pole lug includes a bending portion and a fourth connecting portion, the fourth connecting portion is located on a side of the bending portion away from the battery body, the fourth connecting portion is electrically connected to the connecting sheet, and the bending portion extends along the width direction of the corresponding pole lug.

[0020] On the other hand, the present application also provides an electronic device, including a device body and the above-mentioned battery, the device body is provided with a battery compartment and terminal contacts located inside the battery compartment, the battery is installed inside the battery compartment, and the end contacts are electrically connected to the terminals of the battery.

[0021] The battery and electronic device provided in the present application, the battery includes a battery body, an end shell assembly and a glue injection part. The end shell assembly is located at the end of the battery body, and the top seal of the end of the battery body extends into the interior of the end shell assembly. Connecting pieces and terminals are respectively provided on opposite sides of the end shell assembly, and the connecting pieces are electrically connected to the terminals, and the pole ears of the battery body are electrically connected to the connecting pieces. The battery body and the end shell assembly are fixed by injecting glue between the battery body and the end shell assembly to form a glue injection part. In this way, over-current, over-voltage and over-heat protection functions such as battery protection boards or FPCs can be integrated into the mainboard of electronic equipment, and the end shell assembly of the battery can play a role of switching, and the orientation of the terminals and connecting pieces on the end shell assembly can be set as needed to meet the application scenarios of the battery, thereby improving the wide application of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 An exploded view of a first battery provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of the structure of the first battery provided in the embodiment of the present application Figure 1 ;

[0025] Figure 3 A schematic diagram of the structure of the first battery provided in the embodiment of the present application Figure 2 ;

[0026] Figure 4 A schematic diagram of the structure of the first battery provided in the embodiment of the present application Figure 3 ;

[0027] Figure 5 An exploded view of a second battery provided in an embodiment of the present application;

[0028] Figure 6 A schematic diagram of one side of an adapter plate provided in an embodiment of the present application;

[0029] Figure 7 A schematic diagram of the other side of the adapter plate provided in an embodiment of the present application;

[0030] Figure 8 A schematic diagram of the structure of the adapter board provided in the embodiment of the present application;

[0031] Fig. 9 A schematic diagram of one side of the first end shell provided in an embodiment of the present application;

[0032] Fig.10 A schematic diagram of the other side of the first end shell provided in an embodiment of the present application;

[0033] Fig.11 A schematic diagram of the structure of the first end shell provided in an embodiment of the present application;

[0034] Fig.12 A cross-sectional view of a first end shell provided in an embodiment of the present application;

[0035] Fig.13 The structure of the battery body provided in the embodiment of the present application is shown in FIG. Figure 1 ;

[0036] Fig.14A schematic diagram of the cross-sectional structure of a first end shell provided in an embodiment of the present application;

[0037] Fig.15 A schematic diagram of a battery body provided in an embodiment of the present application after the top sealing edge is bent;

[0038] Fig.16 Schematic diagram of the first battery provided in the embodiment of the present application before injection Figure 1 ;

[0039] Fig.17 Schematic diagram of the first battery provided in the embodiment of the present application before injection Figure 2 ;

[0040] Fig.18 Schematic diagram of the second battery provided in the embodiment of the present application before injection Figure 1 ;

[0041] Fig.19 Schematic diagram of the second battery provided in the embodiment of the present application after the adapter plate is connected to the battery body Figure 1 ;

[0042] Fig. 20 Schematic diagram of welding the first battery tab and the connecting piece provided in the embodiment of the present application Figure 1 ;

[0043] Fig.21 Schematic diagram of welding the first battery tab and the connecting piece provided in the embodiment of the present application Figure 2 ;

[0044] Fig. 22 A schematic diagram of the structure of the second battery provided in the embodiment of the present application Figure 1 ;

[0045] Fig.23 A schematic diagram of the structure of the second battery provided in the embodiment of the present application Figure 2 ;

[0046] Fig.24 The structure of the battery body provided in the embodiment of the present application is shown in FIG. Figure 2 ;

[0047] Fig.25 A schematic diagram of the assembly of the end shell assembly of the battery provided in an embodiment of the present application;

[0048] Fig.26 Schematic diagram of the first battery provided in the embodiment of the present application after the tab and the connecting piece are welded and the end shell assembly is turned over Figure 1 ;

[0049] Fig. 27Schematic diagram of the first battery provided in the embodiment of the present application after the tab and the connecting piece are welded and the end shell assembly is turned over Figure 2 ;

[0050] Fig.28 A schematic diagram of the first battery provided in an embodiment of the present application, in which the end shell assembly and the top sealing edge of the battery body are engaged;

[0051] Fig.29 A schematic diagram of the rotation of the end shell assembly provided in an embodiment of the present application;

[0052] Fig.30 A schematic structural diagram of an end shell assembly of a second battery provided in an embodiment of the present application;

[0053] Fig.31 Schematic diagram of the second battery provided in the embodiment of the present application before injection Figure 2 ;

[0054] Fig.32 Schematic diagram of the second battery provided in the embodiment of the present application after the adapter plate is connected to the battery body Figure 2 ;

[0055] Fig.33 A schematic diagram of the cross-sectional structure of the second battery provided in an embodiment of the present application before glue injection;

[0056] Fig.34 A schematic diagram of the assembly of a first electronic device provided in an embodiment of the present application;

[0057] Fig.35 A schematic diagram of the structure of a first electronic device provided in an embodiment of the present application;

[0058] Fig.36 A schematic diagram of the assembly of a second electronic device provided in an embodiment of the present application;

[0059] Fig.37 A schematic diagram of the structure of a second electronic device provided in an embodiment of the present application.

[0060] Description of reference numerals:

[0061] 100 - battery body; 110 - top sealing edge; 120 - pole ear; 121 - bending part; 122 - fourth connecting part;

[0062] 200-end shell assembly; 210-end shell; 211-installation slot; 212-clamping slot; 2121-first side wall; 2122-second side wall; 213-hole position; 214-installation portion; 220-adapter plate; 221-connecting piece; 2211-first connection portion; 2212-second connection portion; 222-terminal;

[0063] 300- plastic injection parts;

[0064] 400-device body; 410-battery compartment; 420-terminal contact. DETAILED DESCRIPTION

[0065] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme in the embodiment of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application. The embodiments of the present application are described in detail below in conjunction with the drawings.

[0066] In the description of this application, 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, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0067] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are orientations or positional relationships based on the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0068] The terms "first", "second" and "third" (if any) in the specification and claims of this application and the above drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0069] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or display comprising a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or display.

[0070] In the prior art, batteries are fixedly installed inside household appliances and consumer electronic products, and household appliances and consumer electronic products need to be connected to the battery cells through electrical connection structures such as FPC or battery protection boards to enable the battery to supply power to household appliances and consumer electronic products. However, both the FPC and the battery protection board are fixed to the battery cell package, which brings problems: since the FPC and the battery protection board are fixed in the package and are generally only applicable to a certain type of equipment, the connection between the battery and different electrical devices is limited.

[0071] After repeated thinking and verification, the inventor found that if the over-current, over-voltage and over-heat protection functions such as the battery protection board or FPC are integrated on the main board of the electronic device, an end shell assembly is set at the end of the battery body of the battery, and connecting pieces and terminals electrically connected to each other are respectively set on both sides of the end shell assembly. The top flange of the battery body can extend into the interior of the end shell assembly, and the pole ears of the battery body are electrically connected to the connecting pieces. The end shell assembly can play a role of switching. When the electronic device is electrically connected to the terminal, the battery body can power the electronic device. A glue injection part is formed between the end shell assembly and the battery body by glue injection, and the end shell assembly is fixed to the battery body by the glue injection part. The end shell assembly can set the orientation of the connecting piece and the terminal according to the application scenario of the battery, thereby improving the wide application of the battery.

[0072] In view of this, the inventor has designed a battery and an electronic device, wherein an end shell assembly is provided at the end of the battery body, and connecting pieces and terminals electrically connected to each other are provided on opposite sides of the end shell assembly, and the connecting pieces are fixed to the tabs of the battery body. A glue injection piece is provided between the end shell assembly and the battery body to fix the end shell assembly and the battery body. The end shell assembly can be provided with the orientation of the connecting piece and the terminal as required to improve the wide application of the battery.

[0073] The technical solutions of the battery and the electronic device provided in the embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0074] Reference Figure 1-Figure 5 As shown, the battery provided in the embodiment of the present application includes a battery body 100, an end shell assembly 200 and a glue injection part 300. The end of the battery body 100 is provided with a top seal 110 and a pole ear 120 extending from the top seal 110. The end shell assembly 200 is located at the end of the battery body 100, and the top seal 110 extends into the interior of the end shell assembly 200. A connecting piece 221 is provided on one side of the end shell assembly 200, and a terminal 222 is provided on the other side of the end shell assembly 200. The terminal 222 is electrically connected to the connecting piece 221, and the connecting piece 221 is electrically connected to the pole ear 120. The glue injection part 300 is arranged between the battery body 100 and the end shell assembly 200 to fix the battery body 100 and the end shell assembly 200.

[0075] Schematically, the end shell assembly 200 is located at the end of the battery body 100 where the top sealing edge 110 is provided. The position of the connecting piece 221 corresponds to the position of the pole lug 120, and a nickel sheet or other metal sheet can be used as the connecting piece 221, and the connecting piece 221 can be electrically connected to the pole lug 120 by welding. Exemplarily, each terminal 222 can be a hardware terminal 222, and a circuit can be provided on the end shell assembly 200, and the connecting piece 221 can be electrically connected to the terminal 222 through the circuit.

[0076] In one possible implementation, after the end shell assembly 200 is connected to the battery body 100, plastic glue can be injected between the end shell assembly 200 and the battery body 100. After the plastic glue is cured, a glue injection part 300 is formed to fix the end shell assembly 200 to the battery body 100. The glue injection part 300 makes the overall structure of the battery more solid and reliable to form a finished battery.

[0077] The battery provided in this embodiment has a high degree of dimensional consistency in the finished product. The relative position between the battery body 100 and the end shell assembly 200 can be fine-tuned before glue injection. The battery body 100 and the end shell assembly 200 can be fixed by a mold, and glue is injected into the end shell assembly 200 and the battery body 100 in the fixed mold to form a glue-injected part 300.

[0078] The battery provided in this embodiment includes a battery body 100, an end shell assembly 200 and a glue injection part 300. The end shell assembly 200 is located at the end of the battery body 100, and the top seal 110 at the end of the battery body 100 extends into the interior of the end shell assembly 200. A connecting piece 221 and a terminal 222 are respectively provided on opposite sides of the end shell assembly 200, and the connecting piece 221 is electrically connected to the terminal 222, and the pole ear 120 of the battery body 100 is electrically connected to the connecting piece 221. The glue injection part 300 is formed by injecting glue between the battery body 100 and the end shell assembly 200 to fix the battery body 100 and the end shell assembly 200, so that the overall structure of the battery is stable and reliable, and the consistency rate of the finished product is high. In this way, over-current, over-voltage and over-heat protection functions of the battery protection board or FPC can be integrated into the mainboard of the electronic device. The end shell assembly 200 of the battery can play a role of adapter. The orientation of the terminal 222 and the connecting piece 221 on the end shell assembly 200 can be set as needed to meet the application scenario of the battery, thereby improving the wide application of the battery.

[0079] In addition, the battery provided by the present application has a relatively simple structure, which is beneficial to reducing the cost of the battery. The glue injection part 300 can also play a protective role between the end shell assembly 200 and the battery body 100, which is beneficial to improving the waterproof and anti-drop performance of the battery. By adopting an assembly method of first transferring the end shell assembly 200 and the battery body 100, and then adding glue, the matching gap between the battery body 100 and the end shell assembly 200 can be completely filled with glue, and the overall assembly tightness of the battery is higher. At the same time, the battery can supply power to the outside through the two terminals 222 of the end shell assembly 200, and the electronic equipment does not need a more complex electrical connection structure such as FPC, which facilitates the installation and disassembly of the battery. The top seal 110 of the battery body 100 extends into the interior of the end shell assembly 200, which helps to reduce the distance between the battery body 100 and the end shell assembly 200 in the length direction of the battery, that is, Figure 1 The dimension occupied in the direction indicated by the X-axis can reduce the length of the battery.

[0080] In one embodiment, Figure 1 , Figure 5 and Figure 6-Figure 11 As shown, the end shell assembly 200 includes an end shell 210 and an adapter plate 220. The end shell 210 is provided with a mounting groove 211, a clamping groove 212 and a hole 213, and the adapter plate 220 is embedded in the mounting groove 211. The connecting piece 221 and the terminal 222 are respectively connected to the opposite sides of the adapter plate 220, the hole 213 is arranged opposite to the terminal 222, and the top sealing edge 110 is clamped in the clamping groove 212.

[0081] Among them, a fixed plastic shell can be used as the end shell 210. Schematically, the shape and size of the mounting groove 211 match the adapter plate 220. For example, when the shape of the adapter plate 220 is rectangular, the shape of the mounting groove 211 can also be rectangular, the length of the mounting groove 211 can be equal to the length of the adapter plate 220, the width of the mounting groove 211 can be equal to the width of the adapter plate 220, and the adapter plate 220 can be installed in the mounting groove 211 of the end shell 210 by transition fit. The depth of the mounting groove 211 can be the same as the thickness of the adapter plate 220. In other embodiments, the depth of the mounting groove 211 can also be greater than or less than the thickness of the adapter plate 220, which is not the only limitation here. Exemplarily, the connecting piece 221 and the terminal 222 can be installed on the adapter plate 220 by welding.

[0082] Among them, the number of holes in this embodiment is two, and the two holes 213 are respectively opened at the bottom of the installation groove 211. The shape of each hole 213 can match the cross-sectional shape of the opposite terminal 222. The two terminals 222 on the adapter board 220 can be exposed through the two holes 213 on the end shell 210, so that the electronic device can be electrically connected to the two terminals 222 on the adapter board 220. In a possible implementation, as Fig.12 and Fig.13 As shown, the depth D1 of the snap groove 212 may be equal to the width D2 of the top sealing edge 110. It is understandable that the snap groove 212 can snap the end cover with the adapter plate 220 mounted on the top sealing edge 110 of the head of the battery body 100 to play a positioning role.

[0083] In this embodiment, the terminal 222 and the connecting piece 221 are arranged on the adapter plate 220, which facilitates the installation of the terminal 222 and the connecting piece 221. The adapter plate 220 is embedded in the installation groove 211 on the end shell 210, so that the end shell 210 and the adapter plate 220 can be quickly connected.

[0084] Illustratively, the projection of the hole 213 in the thickness direction of the adapter plate 220 covers the projection of the terminal 222 in the thickness direction of the adapter plate 220 .

[0085] Specifically, the cross-sectional dimension of the hole 213 is not less than the cross-sectional dimension of the terminal 222 , so that the hole 213 can fully expose the corresponding terminal 222 , thereby avoiding interference between the terminal shell 210 and the terminal 222 on the adapter plate 220 during assembly.

[0086] In other embodiments, the number of the hole 213 may also be one, and the projection of the hole 213 in the thickness direction of the adapter plate 220 respectively covers the projections of the two terminals 222 in the thickness direction of the adapter plate 220 .

[0087] In a specific embodiment, Figure 1 , Fig.11 , Fig.12 and Figure 14-Figure 19 As shown, the top sealing edge 110 is bent relative to the length direction of the battery body 100 , and a side of the top sealing edge 110 facing away from the battery body 100 abuts against the side wall of the locking groove 212 .

[0088] Here, the length direction of the battery body 100 is defined as Figure 1 The X-axis indicates the direction in which the width of the battery body 100 is Figure 1 The Y axis indicates the direction in which the thickness of the battery body 100 is Figure 1 The direction of the Z axis.

[0089] Schematically, the engaging groove 212 includes a first side wall 2121, which is against a side of the top seal 110 away from the battery body 100, and the angle θ between the first side wall 2121 and the length direction of the battery body 100 is equal to the bending angle of the top seal 110. The larger θ is, the smaller the width B of the end shell 210 can be designed, and the smaller the length of the battery is, but the height A of the end shell 210 will increase, thereby increasing the thickness of the battery. This embodiment does not limit the specific size of the bending angle of the top seal 110, and those skilled in the art can set it according to the width D2 of the top seal 110 and the thickness of the battery body 100. For example, the bending angle of the top seal 110 can be between 20 degrees and 70 degrees.

[0090] During the assembly of the battery body 100 and the end shell assembly 200, after the top seal 110 extends into the engaging groove 212, the end shell assembly 200 can be rotated to drive the top seal 110 to bend. After the top seal 110 is bent, one end of the battery body 100 provided with the top seal 110 is in contact with the end shell assembly 200.

[0091] In this structure, the top sealing edge 110 is bent, which can reduce the space occupied by the top sealing edge 110 in the length direction of the battery, and is helpful to reduce the length of the battery.

[0092] In a possible implementation, the length of the end shell assembly 200 is equal to the width of the battery body 100 .

[0093] As shown in FIG9 , the length of the end shell assembly 200 is the length L of the end shell 210, that is, the length L of the end shell 210 is equal to the width of the battery body 100. Specifically, Figure 1 and Figure 2 As shown, the length of the end shell assembly 200 is the size of the end shell assembly 200 in the direction indicated by the Y axis, and the width of the battery body 100 is the size of the battery body 100 in the direction indicated by the Y axis. That is to say, in the direction indicated by the Y axis, the size of the end shell assembly 200 is equal to the size of the battery body 100.

[0094] Through the above arrangement, before the battery is injected with glue, the end shell assembly 200 and the battery body 100 can be easily positioned on the width of the battery, that is, the end shell assembly 200 and the battery body 100 can be aligned before injecting glue, which is beneficial to improving the production efficiency of the battery and the consistency of the finished product.

[0095] Illustratively, the dimension of the end shell assembly 200 in the length direction of the battery body 100 is 2 mm-8 mm.

[0096] Among them, Fig.12As shown, the dimension of the end shell assembly 200 in the length direction of the battery body 100 is the width B of the end shell 210. For example, the dimension of the end shell assembly 200 in the length direction of the battery body 100 may be 2 mm, 4 mm, 6 mm or 8 mm, etc., which is not limited here. When the dimension of the end shell assembly 200 in the length direction of the battery body 100 is less than 2 mm, the top seal 110 of the battery body 100 needs to be bent at a larger angle, resulting in an increase in the height of the end shell assembly 200 and an increase in the thickness of the battery; when the dimension of the end shell assembly 200 in the length direction of the battery body 100 is greater than 8 mm, the end shell assembly 200 causes the battery to be longer. In other words, the above-mentioned setting can control both the thickness and the length of the battery, thereby avoiding a larger battery size.

[0097] Schematically, the number of the terminals 222 and the number of the connecting pieces 221 are two respectively, the two terminals 222 are electrically connected to the two connecting pieces 221 respectively, and the two connecting pieces 221 are electrically connected to the tabs 120 of different polarities respectively.

[0098] There are at least two tabs 120, and the tabs 120 of the battery body 100 can be divided into positive tabs and negative tabs according to the polarity of the tabs 120. The positive tab is connected to one connecting piece 221, and the negative tab is connected to another connecting piece 221. Schematically, a circuit is provided on the adapter board 220, and the two connecting pieces 221 can be connected to the two terminals 222 in a one-to-one correspondence through the circuit on the adapter board 220.

[0099] This structure enables the electronic device to be electrically connected to each pole ear 120 of the electromagnetic body through two terminals 222 and two connecting plates, so that the battery can stably supply power to the electronic device.

[0100] like Fig.11 and Fig.12 As shown, a mounting portion 214 is disposed on the end shell 210 , and the engaging groove 212 is disposed on the mounting portion 214 .

[0101] Among them, the mounting portion 214 is a block structure provided on the end shell 210, and the snap-fit ​​groove 212 is provided on the block structure. The size of the mounting portion 214 in the length direction of the battery body 100 can be set according to the width D2 of the top seal 110 and the bending angle of the top seal 110, and is not solely limited here. Exemplarily, the number of mounting portions 214 can be two, and the two mounting portions 214 are respectively provided near the two ends of the end shell 210 in the length direction. When the staff rotates the end shell assembly 200, the side wall of the snap-fit ​​groove 212 can reliably push the top seal 110 to drive the top seal 110 to bend.

[0102] In this embodiment, a mounting portion 214 is provided on the end shell 210, and the engaging groove 212 is provided on the mounting portion 214, so as to avoid setting the size of the end shell 210 larger as a whole, thereby reducing the material of the end shell 210 and further reducing the cost and weight of the battery.

[0103] like Fig.12 and Fig.14 As shown, the engaging groove 212 includes a first side wall 2121 and a second side wall 2122 that are oppositely arranged. The width of the first side wall 2121 is greater than the width of the second side wall 2122 . The first side wall 2121 abuts against a side of the top sealing edge 110 that is away from the battery body 100 .

[0104] Among them, the first side wall 2121 can be arranged parallel to the second side wall 2122, and the distance between the first side wall 2121 and the second side wall 2122 can match the thickness of the top sealing edge 110. Exemplarily, the top sealing edge 110 of the battery body 100 is bent toward the top of the battery body 100. After the battery is assembled, the first side wall 2121 is located below the second side wall 2122, and the top width of the mounting portion 214 is smaller than the bottom width of the mounting portion 214, so that the width of the upper second side wall 2122 is smaller than the width of the lower first side wall 2121. Those skilled in the art can set the specific widths of the first side wall 2121 and the second side wall 2122 as needed, and no unique limitation is made here.

[0105] In this embodiment, the width of the second side wall 2122 is relatively narrow, which makes it convenient for the staff to extend the top sealing edge 110 of the battery body 100 into the interior of the locking groove 212. The width of the first side wall 2121 is relatively wide. When the staff rotates the end shell assembly 200, the first side wall 2121 can reliably push the top sealing edge 110 to bend the top sealing edge 110.

[0106] In a possible implementation, the connecting piece 221 includes a first connecting portion 2211 and a second connecting portion 2212 that are connected to each other, the first connecting portion 2211 is connected to the adapter plate 220 , and the second connecting portion 2212 is connected to the tab 120 .

[0107] The first connection part 2211 and the second connection part 2212 are both sheet-like structures, wherein the metal sheet can be bent in the middle to form the first connection part 2211 and the second connection part 2212 on the connection sheet 221. After the first connection part 2211 is connected to the adapter plate 220, the second connection part 2212 can be flipped relative to the first connection part 2211.

[0108] Specifically, when connecting the pole tab 120 and the connecting piece 221, the first connecting portion 2211 and the second connecting portion 2212 are arranged perpendicular to each other to form an approximately "L"-shaped structure, and the vertical section of the "L"-shaped structure, namely the first connecting portion 2211, is connected to the adapter plate 220. Optionally, the horizontal section of the "L"-shaped structure, namely the second connecting portion 2212, is located below the first connecting portion 2211. Before welding the pole tab 120 and the connecting piece 221, the pole tab 120 of the battery cell is placed above the second connecting portion 2212. During welding, the battery body 100 and the end shell assembly 200 are turned over so that the second connecting portion 2212 is located above the pole tab 120, and welding is performed from the side of the second connecting portion 2212 away from the pole tab 120. After welding, the second connecting portion 2212 is turned over so that the connecting piece 221 forms an approximately "U"-shaped structure, and the end of the pole tab 120 away from the battery body 100 extends into the interior of the "U"-shaped structure.

[0109] The above arrangement facilitates welding between the pole ear 120 and the corresponding connecting piece 221. During the welding process, the welding mechanism may not extend between the end shell 210 and the battery body 100, or the length of the welding mechanism extending between the end shell 210 and the battery body 100 is shorter, so that the welding mechanism is not likely to interfere with the end shell 210.

[0110] In one embodiment, Fig. 20 and Fig.24 As shown, the number of tabs is two with opposite polarities, and each tab 120 includes a bending portion 121 and a fourth connecting portion 122. The fourth connecting portion 122 is located on the side of the bending portion 121 away from the battery body 100, the fourth connecting portion 122 is electrically connected to the connecting sheet 221, and the bending portion 121 extends along the width direction of the corresponding tab 120.

[0111] Schematically, the position of the pole lug 120 close to the battery body 100 can be pre-bent to form a bending portion on the pole lug 120 and a fourth connecting portion 122 located on the side of the bending portion away from the battery body 100. Among them, the fourth connecting portion 122 is a sheet-like structure, and the fourth connecting portion 122 can be fitted with the connecting sheet 221 to ensure the reliability of welding between the pole lug 120 and the connecting sheet 221. After the pole lug 120 and the connecting sheet 221 are welded, as the top sealing edge 110 gradually extends into the interior of the snap-fit ​​groove 212, the pole lug 120 is deformed relative to the top sealing edge 110. It is worth mentioning that the pole lug 120 is prone to deformation at the bending portion 121.

[0112] By providing a bending portion 121 and a fourth connecting portion 122 on the pole ear 120 , the reliability of the connection between the pole ear 120 and the connecting sheet 221 can be ensured. At the same time, the pole ear 120 is easily deformed at the bending portion 121 , so that the staff can extend the top sealing edge 110 into the interior of the snap-fit ​​groove 212 .

[0113] In one possible implementation, Figure 1-Figure 4 As shown, the adapter plate 220 is perpendicular to the thickness direction of the battery body 100 .

[0114] Specifically, when the adapter plate 220 is perpendicular to the thickness direction of the battery body 100, the terminal 222 on the end shell assembly 200 is located on one side in the thickness direction of the battery, that is, the terminal 222 on the end shell assembly 200 faces the top or bottom of the battery. At this time, the terminal 222 on one side in the thickness direction of the battery can be electrically connected to the electronic device, thereby powering the electronic device.

[0115] In another possible implementation, Figure 5 , Fig. 22 and Fig.23 As shown, the adapter plate 220 is perpendicular to the length direction of the battery body 100 .

[0116] Specifically, when the adapter plate 220 is perpendicular to the length direction of the battery body 100, the terminal 222 on the end shell assembly 200 is located at one end in the length direction of the battery, that is, the terminal 222 on the end shell assembly 200 faces the front or rear of the battery. At this time, the terminal 222 at one end in the length direction of the battery can be electrically connected to the electronic device, thereby supplying power to the electronic device.

[0117] The following briefly introduces the assembly process of the battery provided in the embodiment of the present application in conjunction with the accompanying drawings so that those skilled in the art can better understand the technical solution of the present application.

[0118] Solution 1: In this solution, the adapter plate 220 is perpendicular to the thickness direction of the battery body 100, and the terminal 222 on the end shell assembly 200 is located on one side in the thickness direction of the battery.

[0119] like Fig.25 As shown, when assembling the battery, firstly, the adapter plate 220 is installed into the installation groove 211 of the end shell 210 by means of transition fit, so as to form the end shell assembly 200;

[0120] like Fig.24 As shown, a bending portion 121 is provided on the tab 120 of the battery body 100 , so that the tab 120 is easily deformed at the bending portion 121 , so that the staff can extend the top sealing edge 110 into the inside of the engaging groove 212 .

[0121] like Fig. 20 and Fig.21As shown, the connecting piece 221 on the end shell assembly 200 is welded to the pole ear 120. When viewed from the front of the battery body 100, the pole ear 120 is located above the second connecting portion 2212 of the connecting piece 221, wherein the front of the battery body 100 is one side in the thickness direction of the battery body 100. When welding, the battery body 100 and the end shell assembly 200 need to be turned over to the back, and the pole ear 120 and the second connecting portion 2212 of the connecting piece 221 are welded from the back to prevent interference between the welding mechanism and the end shell 210 during welding.

[0122] like Fig.26 and Fig. 27 As shown, after the pole ear 120 and the connecting piece 221 are welded, the end shell assembly 200 is flipped 90°. After the end shell assembly 200 is flipped, the welded portion of the pole ear 120 and the connecting piece 221 is located between the first connecting portion 2211 and the second connecting portion 2212 of the connecting piece 221. After the flipping, the terminal 222 on the adapter plate 220 is located on the front side of the battery body 100.

[0123] like Fig.28 As shown, the end shell assembly 200 is flipped again, so that the extension direction of the snap-fit ​​groove 212 on the end shell 210 is parallel to the extension direction of the top seal 110, and the end shell assembly 200 is moved toward the end of the battery body 100 where the top seal 110 is provided, so that the top seal 110 extends into the inside of the snap-fit ​​groove 212. The top seal 110 and the snap-fit ​​groove 212 do not need to be completely locked, and looseness is allowed. Through the above arrangement, not only can the end shell assembly 200 be positioned on the snap-fit ​​groove 212 of the battery body 100, but the end shell assembly 200 can also play a role in transmitting force and torque.

[0124] like Fig.29 As shown in FIG. 1 , after the top sealing edge 110 of the battery body 100 extends into the engaging groove 212 on the end shell 210, the end shell assembly 200 is rotated, and the end shell assembly 200 drives the top sealing edge 110 to bend. After the rotation, the end shell assembly 200 is in contact with the end of the battery body 100 provided with the top sealing edge 110. The battery body 100 after the top sealing edge 110 is bent is as shown in FIG. Fig.15 As shown, the battery body 100 and the end shell assembly 200 are assembled as shown in FIG. Fig.16 and Fig.17 shown.

[0125] like Figure 3 and Figure 4 As shown, since the assembly of the battery body 100 and the end shell 210 is not reliable and there is a certain gap, plastic glue is injected between the battery body 100 and the end shell assembly 200 to form a glue injection part 300, making the overall structure of the battery more solid and reliable.

[0126] Solution 2: The difference between this solution and Solution 1 is that the adapter plate 220 is perpendicular to the length direction of the battery body 100, and the terminal 222 on the end shell assembly 200 is located at one end in the length direction of the battery.

[0127] like Fig.30 As shown, the end shell assembly 200 also includes an end shell 210 and an adapter plate 220 . The end shell 210 has a snap-fit ​​groove 212 and a mounting groove 211 . The snap-fit ​​groove 212 is assembled with the top sealing edge 110 of the battery body 100 , and the mounting groove 211 is assembled with the adapter plate 220 .

[0128] The structure of the battery body 100 and the end shell assembly 200 after assembly is as follows: Fig.18 and Fig.31 As shown, after the pole ear 120 and the connecting piece 221 are welded, the end shell assembly 200 also needs to be rotated.

[0129] like Fig.19 and Fig.32 As shown, after the connection piece 221 and the pole ear 120 are welded, the top sealing edge 110 is bent at a certain angle by rotating the end shell assembly 200, and the bent pole ear 120 presents an L shape and is assembled with the connection piece 221 with the opening facing upward.

[0130] like Fig.18 , Fig.33 and Fig.23 As shown, plastic glue is injected between the battery body 100 and the end shell assembly 200 to form a glue injection part 300, so that the overall structure of the battery is more firm and reliable.

[0131] like Figure 34-Figure 37 As shown, the present application also provides an electronic device, including a device body 400 and the above-mentioned battery, the device body 400 is provided with a battery compartment 410 and an end contact 420 located inside the battery compartment 410, the battery is installed inside the battery compartment 410, and the end contact 420 is electrically connected to the terminal 222 of the battery.

[0132] There are two end contacts 420, and the two end contacts 420 are electrically connected to the two terminals 222 of the battery respectively. Fig.34 and Fig.35 As shown, the end contact 420 is arranged on the bottom wall of the battery compartment 410, and the terminal 222 on the battery is located on one side in the thickness direction of the battery. The battery can be installed upside down into the battery compartment 410, so that the two terminals 222 of the battery are respectively in conductive contact with the two end contacts 420 of the device body 400, so that the battery can supply power to the device body 400.

[0133] In another possible implementation, Fig.35 and Fig.36As shown, the end contact 420 is arranged on the side wall of the battery compartment 410, and the terminal 222 on the battery is located at the front end of the battery. The battery can be inserted into the battery compartment 410 from back to front, so that the two terminals 222 of the battery are respectively in conductive contact with the two end contacts 420 of the device body 400, so that the battery can supply power to the device body 400.

[0134] The electronic device provided by the present application adopts the above-mentioned battery, and the electronic device does not need to be provided with a relatively complex electrical connection structure such as FPC, and the battery can be easily installed and removed. In addition, the orientation of the battery terminal 222 can match the position of the terminal contact 420 on the battery compartment 410, and is widely used.

[0135] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery, characterized in that: include: A battery body, wherein the end of the battery body is provided with a top seal and a pole ear extending from the top seal; An end shell assembly is located at the end of the battery body, a connecting piece is provided on one side of the end shell assembly, and a terminal is provided on the other side of the end shell assembly, the terminal is electrically connected to the connecting piece, and the connecting piece is electrically connected to the tab; The glue injection part is arranged between the battery body and the end shell assembly to fix the battery body and the end shell assembly.

2. The battery according to claim 1, characterized in that The end shell assembly includes an end shell and an adapter plate. The end shell is provided with an installation groove, a clamping groove and a hole. The adapter plate is embedded in the installation groove. The connecting piece and the terminal are respectively connected to the opposite sides of the adapter plate. The hole is arranged opposite to the terminal, and the top seal is clamped in the clamping groove.

3. The battery according to claim 2, characterized in that The top sealing edge is bent relative to the length direction of the battery body, and a side of the top sealing edge facing away from the battery body abuts against a side wall of the locking groove.

4. The battery according to claim 3, characterized in that The length of the end shell assembly is equal to the width of the battery body; and / or, The dimension of the end shell assembly in the length direction of the battery body is 2mm-8mm; and / or, The number of the terminals and the number of the connecting pieces are two respectively, the two terminals are electrically connected to the two connecting pieces respectively, and the two connecting pieces are electrically connected to the tabs with different polarities respectively.

5. The battery according to claim 3, characterized in that The end shell is provided with a mounting portion, and the engaging groove is provided on the mounting portion.

6. The battery according to claim 5, characterized in that The engaging groove includes a first side wall and a second side wall that are arranged opposite to each other, the width of the first side wall is greater than the width of the second side wall, and the first side wall abuts against a side of the top sealing edge that is away from the battery body.

7. The battery according to claim 2, characterized in that The projection of the hole in the thickness direction of the adapter plate covers the projection of the terminal in the thickness direction of the adapter plate.

8. The battery according to claim 2, characterized in that The connecting piece includes a first connecting portion and a second connecting portion connected to each other, the first connecting portion is connected to the adapter plate, and the second connecting portion is connected to the tab.

9. The battery according to any one of claims 2 to 8, characterized in that: The adapter plate is perpendicular to the thickness direction of the battery body; and / or, The adapter plate is perpendicular to the length direction of the battery body.

10. The battery according to any one of claims 1 to 8, characterized in that: The pole lug includes a bending portion and a fourth connecting portion, the fourth connecting portion is located on a side of the bending portion away from the battery body, the fourth connecting portion is electrically connected to the connecting sheet, and the bending portion extends along the width direction of the corresponding pole lug.

11. An electronic device, characterized in that: It comprises a device body and a battery as described in any one of claims 1-10, wherein the device body is provided with a battery compartment and terminal contacts located inside the battery compartment, the battery is installed inside the battery compartment, and the terminal contacts are electrically connected to the terminals of the battery.

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