CN221150186U

CN221150186U - Battery and electronic equipment

Info

Publication number: CN221150186U
Application number: CN202322896820.0U
Authority: CN
Inventors: 刘文奇; 蔡华亮; 陈本良; 刘仕臻; 李葆佳
Original assignee: Sunwoda Electronic Co Ltd
Current assignee: Sunwoda Electronic Co Ltd
Priority date: 2023-10-26
Filing date: 2023-10-26
Publication date: 2024-06-14
Anticipated expiration: 2033-10-26

Abstract

The application discloses a battery and electronic equipment, and belongs to the technical field of batteries. The battery includes: the battery cell comprises a battery cell body, a top seal and a fixing piece; the battery core body is provided with a target side surface, the top seal is connected with the target side surface and is bent towards the target side surface, and a gap is reserved between the top seal and the target side surface; the fixed part is connected to one side of the top seal, which is away from the side face of the target, and is connected with the battery cell body, and the fixed part is used for fixing the top seal. Through having the clearance between messenger's top seal and the target side, the mounting is connected with top seal and electric core body respectively, and the fixed top seal of mounting to when falling test is done to the battery, the impact that the top seal received also can be by the top seal buffering, avoids the top seal to transmit the impact to the target side of electric core body, thereby causes the problem that the target side was damaged to appear, and then can play the guard action to electric core body.

Description

Battery and electronic equipment

Technical Field

The application belongs to the technical field of batteries, and particularly relates to a battery and electronic equipment.

Background

With the development of technology, electronic devices are becoming more and more widely used, and video, photographed images, etc. can be viewed through the electronic devices. Electronic devices include, but are not limited to, cell phones, tablet computers, lighting fixtures, digital sound. Generally, a battery is installed in an electronic device, and the electronic device is supplied with power through the battery.

In the production process of the soft-package battery, a top sealing edge and a side sealing edge are generally formed on the battery core body after the aluminum plastic film packaging is completed, in an initial state, the top sealing edge extends out of the top end face of the battery core body, the side sealing edges extend out of the left side face and the right side face of the battery core body, the top sealing edge is bent towards the top end face, then glue or double-sided glue is filled between the top sealing edge and the top end face, and the bent top sealing edge is tightly fixed on the top end face in a field. However, when the battery is subjected to a drop test, the top sealing edge is impacted, and the top sealing edge can transmit impact force to the top end face of the battery cell body, so that the battery cell body is possibly damaged.

Disclosure of utility model

The embodiment of the application aims to provide a battery and electronic equipment, which at least solve the problem that the top edge sealing can directly transmit the impact force received by the top end face of a battery core body to possibly damage the battery core body when the battery is subjected to drop test.

In a first aspect, an embodiment of the present application provides a battery including: the battery cell comprises a battery cell body, a top seal and a fixing piece;

The battery cell body is provided with a target side surface, the top seal is connected with the target side surface and is bent towards the target side surface, and a gap is reserved between the top seal and the target side surface;

The fixing piece is connected to one side of the top seal, which is away from the side face of the target, and is connected with the battery cell body, and the fixing piece is used for fixing the top seal.

Optionally, the fixing part is connected to a side of the top seal facing away from the target side, and the fixing part is connected to a surface of the cell body except for the target side.

Optionally, the top seal has a bending part bending relative to the target side, the bending part has a second face facing the target side, a first included angle is formed between the second face and the target side, the first included angle is α, and the α satisfies: alpha is more than or equal to 0 and less than or equal to 15 degrees.

Optionally, the top seal has a bending portion bending relative to the target side, a maximum value of a dimension of a gap between the bending portion and the target side is L, and the L satisfies: l is more than or equal to 0.3mm and less than or equal to 0.5mm.

Optionally, the fixing piece is adhesive tape, and the adhesive tape is respectively adhered to one side of the top seal, which is away from the side surface of the target, and the battery cell body.

Optionally, the battery further comprises a circuit board, the circuit board is located outside the battery core body, the battery further comprises a tab, the tab part is located inside the battery core body, and the tab extends out of the top seal to the outside of the battery core body;

The circuit board with the utmost point ear is connected, the other end of utmost point ear with the top seal is connected, just the circuit board for the slope of target side, the circuit board orientation the target side the surface with have the second contained angle between the target side, the second contained angle is beta, beta satisfies: beta is more than or equal to 0 and less than or equal to 20 degrees.

Optionally, the battery further comprises an injection molding piece, wherein the injection molding piece wraps the circuit board, the tab and the top seal.

Optionally, the battery further comprises insulating adhesive paper, the battery cell body further comprises a connecting side surface opposite to the target side surface, and the insulating adhesive paper is adhered to the connecting side surface.

Optionally, the battery further includes an insulating film, the battery cell further includes a connection surface, the connection surface is located between the target side and the connection side, and the connection surface is connected with the target side and the connection side, respectively, the insulating film is connected to the connection surface of the battery cell body, and the insulating film covers part or all of the connection surface.

In a second aspect, an embodiment of the present application provides an electronic device, including a device body and the battery according to any one of the first aspect above;

The battery is installed in the device body.

In the embodiment of the application, because the top seal is connected to the target side surface of the battery cell body and is bent towards the target side surface, and a gap is formed between the top seal and the target side surface, once the top seal is impacted during the drop test of the battery, the gap between the top seal and the target side surface can prevent the top seal from directly impacting on the target side surface after being stressed, i.e. the top seal can buffer the impact force to a certain extent, thereby avoiding the problem that the target side surface of the battery cell body is impacted and damaged. And, the mounting is connected in the top and seals one side that deviates from the target side, and the mounting is connected with the electric core body, consequently, the mounting can fix the top and seal, avoids the top to seal the perk seriously. That is, in the embodiment of the application, by enabling a gap to be formed between the top seal and the target side surface, the fixing piece is respectively connected with the top seal and the battery cell body, and the fixing piece fixes the top seal, so that the impact force received by the top seal can be buffered by the top seal when the battery is subjected to the drop test, the problem that the top seal transmits the impact force to the target side surface of the battery cell body, thereby causing damage to the target side surface is solved, and the battery cell body can be protected.

Drawings

Fig. 1 shows one of explosion diagrams of a battery provided by an embodiment of the present application;

FIG. 2 is a schematic diagram showing a second explosion diagram of a battery according to an embodiment of the present application;

FIG. 3 shows a partial enlarged view at A in FIG. 2;

fig. 4 shows a cross-sectional view of a battery cell body according to an embodiment of the present application;

FIG. 5 shows a partial enlarged view at B in FIG. 4;

Fig. 6 shows one of the enlarged partial views of the cross-sectional view of a cell body provided by an embodiment of the present application;

FIG. 7 is a second enlarged partial view of a cross-sectional view of a battery cell according to an embodiment of the present application;

Fig. 8 is a partially enlarged view of a third embodiment of a cross-sectional view of a battery cell according to the present application.

Reference numerals:

10: a cell body; 20: top sealing; 30: a fixing member; 40: a circuit board; 50: a tab; 60: an injection molding; 70: insulating gummed paper; 80: an insulating film; 90: adhesive glue; 11: a target side; 12: a connecting side surface; 13: a connection surface; 21: a connection part; 22: a bending part; 221: a first face; 222: a second face; x: a first direction.

Detailed Description

The features of the application "first", "second" and the like in the description and in the claims may be used for the explicit or implicit inclusion of one or more such features. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1, one of explosion diagrams of a battery provided by an embodiment of the present application is shown; referring to fig. 2, there is shown a second exploded view of a battery according to an embodiment of the present application; referring to FIG. 3, a partial enlarged view at A in FIG. 2 is shown; referring to fig. 4, a cross-sectional view of a cell body according to an embodiment of the present application is shown; referring to FIG. 5, a partial enlarged view at B in FIG. 4 is shown; referring to fig. 6, one of the partial enlarged views of the cross-sectional view of a cell body provided by an embodiment of the present application is shown; referring to fig. 7, a second enlarged partial view of a cross-sectional view of a battery cell body according to an embodiment of the present application is shown; referring to fig. 8, a third enlarged partial view of a cross-sectional view of a battery cell body according to an embodiment of the present application is shown. As shown in fig. 1 to 8, the battery includes: cell body 10, top seal 20 and mounting 30.

The cell body 10 has a target side 11, the top seal 20 is connected to the target side 11 and is bent toward the target side 11, and a gap is provided between the top seal 20 and the target side 11. The fixing piece 30 is connected to one side of the top seal 20 facing away from the target side 11, and the fixing piece 30 is connected to the cell body 10, and the fixing piece 30 fixes the top seal 20.

In the embodiment of the application, since the top seal 20 is connected to the target side 11 of the battery cell body 10 and is bent towards the target side, and a gap is formed between the top seal 20 and the target side 11, when the battery is subjected to a drop test, once the top seal 20 is impacted, the top seal 22 can not directly impact on the target side 11 after being stressed by the gap between the top seal 20 and the target side 11, i.e. the top seal 20 can buffer the impact force to a certain extent, thereby avoiding the problem that the target side 11 of the battery cell body 10 is impacted and damaged. In addition, the fixing piece 30 is connected to one side of the top seal 20 away from the target side 11, and the fixing piece 30 is connected with the cell body 10, so that the fixing piece 30 can fix the top seal 20, and serious lifting of the top seal 20 is avoided. That is, in the embodiment of the present application, by providing a gap between the top seal 20 and the target side 11, the fixing member 30 is respectively connected with the top seal 20 and the battery cell body 10, and the fixing member 30 fixes the top seal 20, so that when a drop test is performed on a battery, the impact force received by the top seal 20 is buffered by the top seal 20, so that the top seal 20 is prevented from transmitting the impact force to the target side 11 of the battery cell body 10, and the problem that the target side 11 is damaged is caused, thereby protecting the battery cell body 10.

In addition, in the embodiment of the present application, the fixing member 30 is partially connected to the side of the top seal 20 facing away from the target side 11, and the fixing member 30 is partially connected to the surface of the cell body 10 facing out of the target side 11. Through such setting, the fixed part of setting up 20 is buckled to the mounting 30, avoids the problem that the part of buckling of setting up 20 to appear, and the mounting 30 dodges the clearance between setting up 20 and the target side 11 to when setting up 20 receives the striking, the clearance between setting up 20 and the target side 11 does not have any to fill, is favorable to the part of setting up 20 to buckle to impact force to cushion, and then avoids impact force to transmit to the target side 11, leads to the problem that the target side 11 probably is damaged to appear.

It should be noted that, in the embodiment of the present application, the fixing member 30 may be adhesive tape, and the adhesive tape is respectively adhered to one side of the top seal 20 facing away from the target side 11 and the battery cell body 10, that is, a part of the adhesive tape may be adhered to one side of the top seal 20 facing away from the target side 11, and a part of the adhesive tape may be adhered to the surface of the battery cell body 10, so that the adhesive tape may fix the top seal 20, and the problem of lifting and tilting of the top seal 20 is avoided. Of course, the fixing member 30 may be other types of components, for example, the fixing member 30 is an adhesive tape. The embodiments of the present application are not limited herein with respect to the particular type of fastener 30.

Additionally, in some embodiments, the top seal 20 has a bending portion 22 bending relative to the target side 11, the bending portion 22 has a second face 222 facing the target side 11, and a first angle α is formed between the second face 222 and the target side 11, where α satisfies: alpha is more than or equal to 0 and less than or equal to 15 degrees. By such arrangement, the inclination of the bent portion 22 with respect to the target side 11 is moderate, so that it is possible to ensure that the top seal 20 is easily injection-molded at the time of subsequent injection-molding of the battery. When α > 15 °, the inclination of the bent portion 22 with respect to the target side 11 is too large, and when the top seal 20 and other components of the battery are injection molded subsequently, the space occupied by the top seal 20 is large, which is not beneficial to injection molding.

It should be noted that, in the embodiment of the present application, α may be any value from 0 ° to 15 °. For example, α is 0 °, and at this time, the first surface 221 corresponding to the bent portion 22 is parallel to the target side surface 11, and further, for example, α is 3 °, further, for example, α is 5 °, further, for example, α is 7 °, further, for example, α is 9 °, further, for example, α is 11 °, further, for example, α is 13 °, and further, for example, α is 15 °. The specific values of α are not limiting herein.

In addition, in some embodiments, the top seal 20 has a bent portion 22 bent with respect to the target side 11, and the maximum value of the dimension of the gap between the bent portion 22 and the target side 11 is L, where L satisfies: l is more than or equal to 0.3mm and less than or equal to 0.5mm. With this arrangement, a sufficient gap is secured between the bent portion 22 and the target side surface 11, so that the bent portion 22 does not come into contact with the target side surface 11 when the bent portion 22 is impacted, and thus the impact force is not transmitted to the target side surface 11. That is, by such arrangement, the cell body 10 can be protected.

The dimension L of the gap between the bent portion 22 and the target side surface 11 may be any one of 0.3mm to 0.5mm, for example, L may be 0.3mm, for example, L may be 0.4mm, and for example, L may be 0.5mm.

Additionally, in some embodiments, the thickness of the cell body 10 is M, M satisfying: m is more than or equal to 4.3mm. Through such setting, can make the thickness of electric core body 10 satisfy the requirement, and avoid follow-up when moulding plastics top seal 20, top seal 20 is protruding in the surface of electric core body 10 in the thickness direction of electric core body 10, is unfavorable for the follow-up problem to moulding plastics the electric core to appear.

Additionally, in some embodiments, the battery further includes a circuit board 40, the circuit board 40 is located outside the cell body 10, the battery further includes a tab 50, a portion of the tab 50 is located inside the cell body 10, and the tab 50 protrudes from the top seal 20 to the outside of the cell body 10. The circuit board 40 is connected with the tab 50, and the circuit board 40 is inclined relative to the target side 11, a second included angle is formed between the surface of the circuit board 40 facing the target side 11 and the target side 11, and the second included angle is beta, and beta satisfies: beta is more than or equal to 0 and less than or equal to 20 degrees. Through such setting, the circuit board 40 is inclined for the target side 11, can avoid circuit board 40 to protrude in the thickness direction of battery in the battery, and then can make the follow-up when moulding plastics the battery, injection molding 60 can cladding circuit board 40 completely, avoids circuit board 40 to protrude in injection molding 60 in the thickness direction of battery, is unfavorable for circuit board 40 to be moulded plastics the problem appearance. In addition, β is 0+.ltoreq.20deg.C, which can ensure that the inclination of the circuit board 40 relative to the target side is moderate, avoid that the inclination of the circuit board 40 is larger, and influence the size of the battery after injection molding, and when the battery is injection molded, once the size of the injection molded part 60 is determined, the inclination of the circuit board 40 is larger, and can also cause the circuit board 40 to protrude out of the injection molded part 60 along the direction away from the target side 11, so as to influence the injection molding effect on the battery.

It should be noted that, in the embodiment of the present application, β may be any value from 0 ° to 20 °. For example, β is 0 °, and at this time, the first surface 221 corresponding to the bent portion 22 is parallel to the target side surface 11, and β is 3 °, and β is 5 °, and β is 7 °, and β is 9 °, and β is 11 °, and β is 13 °, and β is 15 °, and β is 17 °, and β is 19 °, and β is 20 °. The specific values of β are not limiting herein.

It is further noted that, in the embodiment of the present application, the circuit board 40 may be provided with electronic components, and the electronic components may also be covered by the injection molding member 60.

In addition, in the embodiment of the present application, the projection of the circuit board 40 along the first direction X may be within the target side 11, so as to ensure that the circuit board 40 does not protrude from the surface of the circuit board 40 along the thickness direction of the cell body 10 when the circuit board 40 is coated by the injection molding 60.

Additionally, in some embodiments, the battery may further include an injection molded part 60, the injection molded part 60 encasing the circuit board 40, tab 50, and top seal 20. Through such setting, injection molding 60 alright can be with circuit board 40, utmost point ear 50 and top seal 20 cladding to the existence of injection molding 60 can make circuit board 40, utmost point ear 50 and top seal 20's position fixed, and injection molding 60 has certain guard action to circuit board 40, utmost point ear 50 and top seal 20, and in addition, injection molding 60 has insulating effect, can also avoid the problem of electric core body 10 electric leakage in this position department to appear.

It should be noted that, the injection molding member 60 may mold the circuit board 40, the tab 50 and the top seal 20 by injection molding, so that the battery can be directly used later. In addition, the tab 50 may be a nickel sheet, and of course, the tab 50 may also be another metal sheet, for example, the tab 50 is a copper sheet. Embodiments of the present application are not limited herein with respect to the particular type of tab 50.

In addition, in some embodiments, the battery further includes an insulating adhesive paper 70, and the cell body 10 further includes a connection side 12 opposite the target side 11, the insulating adhesive paper 70 being adhered to the connection side 12.

By the arrangement, if the top seal 20 is taken as the bottom of the battery cell body 10, at this time, the connecting side 12 corresponds to the bottom of the battery cell body 10, so that the bottom of the battery cell body 10 is insulated, the bottom of the battery cell body 10 is not conductive when the battery provided by the embodiment of the application is applied, and the problem of electric leakage of the battery cell body 10 from the bottom is avoided.

It should be noted that, in the embodiment of the present application, the insulating adhesive paper 70 may cover the connection side 12, that is, the entire connection side 12 is covered by the insulating adhesive paper 70, so that the connection side 12 may be ensured to be conductive by providing the insulating adhesive paper 70, and the problem of electric leakage occurs.

In addition, in some embodiments, the battery further includes an insulating film 80, the battery cell further includes a connection surface 13, the connection surface 13 is located between the target side 11 and the connection side 12, and the connection surface 13 is connected to the target side 11 and the connection side 12, respectively, the insulating film 80 is connected to the connection surface 13 of the battery cell body 10, and the insulating film 80 covers part or all of the connection surface 13.

Through the arrangement, the surface of the battery cell body 10 is equivalent to being covered by the insulating film 80, so that when the battery cell body 10 provided by the embodiment of the application is applied, the battery cell body 10 cannot leak electricity from the connecting surface 13, the insulating film 80 can also protect the connecting surface 13 of the battery cell body 10, and the problem that other parts in electronic equipment directly contact the connecting surface 13 of the battery cell body 10 and damage to the connecting surface 13 is possibly caused is avoided.

In addition, in the embodiment of the present application, an adhesive 90 may be provided on the insulating film 80, so that when the battery is mounted in the battery compartment in the electronic device, the insulating film 80 may be adhered to the battery compartment by the adhesive 90, thereby allowing the battery to be fixed in the battery compartment. That is, by providing the adhesive 90 on the insulating film 80, it is possible to facilitate fixing of the battery in the electronic device when the battery is applied in the electronic device. It should be noted that the adhesive 90 may be a double-sided adhesive.

The embodiment of the application provides electronic equipment, which comprises an equipment body and a battery in any one of the above embodiments. The battery is mounted in the device body.

It should be noted that, in the embodiment of the present application, the electronic device includes, but is not limited to, a controller, an intelligent device, a terminal product, and the like, where the intelligent device is, for example, a smart phone, a smart television, a smart speaker, a smart robot, a VR device, an AR device, an XR device, and the like, and the terminal product includes products such as a personal computer, a tablet computer, and the like.

In addition, in the embodiment of the present application, the battery may be adhered in the battery compartment of the apparatus body by the adhesive 90.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery, the battery comprising: a battery core body (10), a top seal (20) and a fixing piece (30);

The battery cell body (10) is provided with a target side surface (11), the top seal (20) is connected to the target side surface (11) and is bent towards the target side surface (11), and a gap is reserved between the top seal (20) and the target side surface (11);

The fixing piece (30) is connected to one side, deviating from the target side face (11), of the top seal (20), the fixing piece (30) is connected with the battery cell body (10), and the top seal (20) is fixed by the fixing piece (30).

2. The battery according to claim 1, characterized in that the fixing member (30) is partially connected to a side of the top seal (20) facing away from the target side (11), and the fixing member (30) is partially connected to a surface of the battery cell body (10) other than the target side (11).

3. The battery according to claim 1, wherein the top seal (20) has a bent portion (22) bent with respect to the target side (11), the bent portion (22) having a second face (222) facing the target side (11), the second face (222) having a first angle with the target side (11), the first angle being α, the α satisfying: alpha is more than or equal to 0 and less than or equal to 15 degrees.

4. The battery according to claim 1, wherein the top seal (20) has a bent portion (22) bent with respect to the target side face (11), a maximum value of a dimension of a gap between the bent portion (22) and the target side face (11) being L, the L satisfying: l is more than or equal to 0.3mm and less than or equal to 0.5mm.

5. The battery according to claim 1, characterized in that the fixing member (30) is a piece of adhesive paper, which is adhered to the side of the top seal (20) facing away from the target side (11) and the cell body (10), respectively.

6. The battery according to claim 1, further comprising a circuit board (40), the circuit board (40) being located outside the cell body (10), the battery further comprising a tab (50), the tab (50) being partially located inside the cell body (10), and the tab (50) protruding from the top seal (20) to the outside of the cell body (10);

The circuit board (40) is connected with the tab (50), and the circuit board (40) is inclined relative to the target side face (11), a second included angle is formed between the surface of the circuit board (40) facing the target side face (11) and the target side face (11), the second included angle is beta, and the beta satisfies: beta is more than or equal to 0 and less than or equal to 20 degrees.

7. The battery of claim 6, further comprising an injection molded part (60), wherein the injection molded part (60) encapsulates the circuit board (40), the tab (50), and the top seal (20).

8. The battery according to claim 1, further comprising an insulating glue (70), the cell body (10) further comprising a connection side (12) opposite the target side (11), the insulating glue (70) being glued to the connection side (12).

9. The battery according to claim 8, characterized in that the battery further comprises an insulating film (80), the battery cell further comprises a connection surface (13), the connection surface (13) is located between the target side face (11) and the connection side face (12), and the connection surface (13) is connected with the target side face (11) and the connection side face (12), respectively, the insulating film (80) is connected to the connection surface (13) of the battery cell body (10), and the insulating film (80) covers part or all of the connection surface (13).

10. An electronic device, characterized in that the electronic device comprises a device body and the battery of any one of claims 1-9;

The battery is installed in the device body.