CN219534792U - Battery and electric equipment - Google Patents

Abstract

The utility model provides a battery and electric equipment, wherein the battery comprises: the shell comprises a bottom shell and a top cover, and the top cover is covered on the bottom shell to jointly define a containing cavity; the battery cell is arranged in the accommodating cavity and is provided with a first tab and a second tab which are opposite in polarity, the first tab is connected with the top cover, and the second tab is connected with the bottom shell; the first switching piece is at least partially structured at the top of the top cover and is connected with the top cover, and the at least partially structured is in a flat plate shape; and the second rotating sheet is connected with the bottom shell. According to the battery, on one hand, when the first switching piece is connected with the top cover, the first switching piece is easy to contact with the top cover well, the welding yield is improved, in addition, the flat plate-shaped structure is beneficial to stamping processing, the processing efficiency of parts can be improved, and meanwhile, the dimensional accuracy of the first switching piece is also convenient to guarantee.

Description

Battery and electric equipment

Technical Field

The utility model relates to the technical field of energy storage, in particular to a battery and electric equipment.

Background

With the development of electronic products, the appearance of miniature electric equipment such as Bluetooth headphones and electronic handrings not only brings higher requirements on the aspects of volume, energy density and safety performance of batteries, but also brings new challenges on the aspects of assembly of the batteries and the like.

For button cells, when the anode and the cathode are provided with the switching pieces to be connected with an external circuit, the structure of the switching pieces is gradually complicated due to the difference of circuit layouts of electric equipment. Therefore, the manufacturing and processing difficulty of the adapter piece and the assembly difficulty of other parts of the battery are increased, the processing precision and the yield of the adapter piece are difficult to ensure, and the production efficiency of the battery is not improved.

Disclosure of Invention

In view of the above problems, the present utility model provides a battery and an electric device, in which the first switching piece has a simple structure, is easy to process and assemble, and is beneficial to improving the production efficiency of the battery.

A first aspect of the present utility model provides a battery comprising: the shell comprises a bottom shell and a top cover, and the top cover is covered on the bottom shell to jointly define a containing cavity; the battery cell is arranged in the accommodating cavity and is provided with a first tab and a second tab which are opposite in polarity, the first tab is connected with the top cover, and the second tab is connected with the bottom shell; a first tab having at least a portion of its structure located on top of and connected to the top cover; and the second rotating sheet is connected with the bottom shell.

According to the battery, the first switching piece is in a flat plate shape, so that on one hand, when the first switching piece is connected with the top cover, the first switching piece is easy to contact with the top cover well, welding seams are not easy to generate, the welding yield is improved, in addition, the switching piece is simple in structure, convenient to punch, capable of improving the processing efficiency of parts, reducing the cost, and meanwhile, the dimensional accuracy of the first switching piece is also convenient to guarantee, and the product yield is improved.

In some embodiments, the first tab comprises: the first connecting part is positioned at the top of the top cover and is connected with the top cover, the first pin is positioned at the side part of the shell, and the first pin is connected with the first connecting part; the second adapter piece comprises: the second connecting portion is connected with the side wall of the bottom shell, and the second pins extend outwards along the radial direction of the shell.

Optionally, the first switching piece further comprises: the first conductive part is positioned at the top of the top cover, one end of the first conductive part is connected with the first connecting part, and the other end of the first conductive part extends along the radial direction of the top cover and is connected with the first pin.

Optionally, the first switching piece further comprises: the fixing pin is positioned on one side, facing away from the first conductive part, of the first connecting part in the radial direction and extends in the radial direction of the top cover.

In some embodiments, the first connection portion is provided with a first fitting location groove and the second connection portion is provided with a second fitting location groove.

Optionally, the first pin includes: a first section parallel to and spaced apart from a sidewall of the bottom chassis, a top end of the first section being connected to the first connection portion; and one end of the second section is connected with the bottom end of the first section, and the other end of the second section extends outwards along the radial direction of the bottom shell.

Optionally, the middle part of top cap is along axial and towards the electric core body is sunken in order to form first welding and sink the platform, first welding sink the platform with first utmost point ear links to each other, be formed with along the liquid injection hole that runs through of axial on the first welding sink the platform, the projection of first utmost point ear in the reference plane with the projection of liquid injection hole in the reference plane staggers, the reference plane perpendicular to the axial of electric core.

In some embodiments, the battery further comprises: the first outer insulating glue is arranged between the top cover and the first conductive part to separate the top cover from the first conductive part, an avoidance hole is formed in the first outer insulating glue, and the avoidance hole is axially opposite to the first welding sinking table and the first connecting part respectively; the plugging connecting piece is embedded in the first welding sinking table to plug the liquid injection hole, a connecting boss is formed on one side, facing away from the liquid injection hole, of the plugging connecting piece, and the connecting boss penetrates through the avoidance hole and is connected with the first connecting portion.

According to some embodiments of the utility model, the first outer insulating glue comprises: the first glue body is annular, and the avoidance holes are defined by the first glue body; the first fixed rubber foot is positioned on the periphery of the first rubber body and axially extends from the bottom shell, the first fixed rubber foot is connected with the side wall of the bottom shell, and the first pin is attached to one side, opposite to the bottom shell, of the first fixed rubber foot.

Optionally, the top cover comprises a positive electrode cover plate, wherein the first welding sinking table is formed on the positive electrode cover plate; the negative electrode cover plate is arranged on one side, facing the bottom shell, of the positive electrode cover plate and is connected with the bottom shell; the insulating spacer is clamped between the positive electrode cover plate and the negative electrode cover plate, and the first welding sinking table sequentially penetrates through the insulating spacer and the negative electrode cover plate and is connected with the first tab.

In some embodiments, the battery further comprises: and the second external insulating adhesive is at least partially structurally attached to the part of the first switching sheet, which is positioned at the top of the top cover.

Optionally, the second external insulating glue includes: a second glue body covering a portion of the first tab located at the top of the top cover; the positive electrode protection rubber feet are arranged on the peripheral edge of the second rubber body, extend along the axial direction of the bottom shell and cover the outer side face of the first pin; the second fixed rubber feet are at least one, the at least one second fixed rubber foot is arranged on the periphery of the second rubber body and extends along the axial direction of the bottom shell, and the second fixed rubber feet are connected with the side wall of the bottom shell.

In some embodiments, the battery further comprises: the third outer insulating glue extends along the circumference of the bottom shell and is adhered to the circumferential wall of the bottom shell, an avoidance outlet is formed in the third outer insulating glue, the third outer insulating glue covers the first section of the first pin and the second connecting portion, and the second section of the first pin and the second pin are led out from the avoidance outlet.

According to some embodiments of the utility model, the battery further comprises: and the fourth external insulating adhesive is adhered to and covers the outer bottom wall of the bottom shell.

A second aspect of the present utility model provides an electrical device, comprising: an apparatus body having a battery compartment; according to the battery of the first aspect of the utility model, the battery is arranged in the battery compartment.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a battery according to an embodiment of the present utility model;

fig. 2 is an exploded view of a battery according to an embodiment of the present utility model;

FIG. 3 is a schematic view illustrating an angle of a first tab according to an embodiment of the present utility model;

FIG. 4 is a schematic view of another angle of the first tab according to an embodiment of the present utility model;

FIG. 5 is a schematic view illustrating an angle of a second rotating tab according to an embodiment of the present utility model;

FIG. 6 is a schematic view illustrating another angle of the second rotating tab according to the embodiment of the present utility model;

Fig. 7 is a schematic view of an angle of a battery cell according to an embodiment of the present utility model;

fig. 8 is a schematic view of another angle of the battery cell according to the embodiment of the present utility model;

fig. 9 is a schematic view illustrating an angle of a first external insulating adhesive according to an embodiment of the present utility model;

fig. 10 is a schematic view illustrating another angle of the first external insulating adhesive according to the embodiment of the present utility model;

FIG. 11 is a schematic view illustrating an angle of a second external insulation paste according to an embodiment of the present utility model;

fig. 12 is a schematic view of another angle of the second external insulating adhesive according to the embodiment of the present utility model;

FIG. 13 is a schematic view of an angle of a top cover according to an embodiment of the present utility model;

FIG. 14 is a schematic view of another angle of the top cover provided by an embodiment of the present utility model;

FIG. 15 is an exploded view of a top cover provided in an embodiment of the present utility model;

fig. 16 is a schematic view illustrating an angle of a third external insulation paste according to an embodiment of the present utility model;

fig. 17 is a schematic view illustrating another angle of the third external insulating adhesive according to an embodiment of the present utility model.

Reference numerals illustrate:

100-cell;

1-a housing; 11-bottom case; 12-top cover; 121-a negative electrode cover plate; 122-insulating spacers; 123-positive electrode cover plate; 1231-a first welding sink table; 1232-liquid injection hole;

2-an electric core; 21-a cell body; 22-a first tab; 23-second pole ear;

3-a first tab; 31-a first connection; 32-a first conductive portion; 33-a first pin; 331-first section; 332-a second section; 34-fixing pins; 35-a first assembly positioning groove;

4-a second switching piece; 41-a second connection; 42-a second pin; 43-a second assembly positioning slot;

5-plugging the connecting piece; 51-connecting bosses;

61-a first inner insulating glue;

62-a second internal insulating glue;

63-a first outer insulating glue; 631-first fixed rubber feet; 632-a first glue body; 633-dodging holes;

64-a second outer insulating glue; 641-second fixed rubber feet; 642-positive electrode protective rubber feet; 643-a second glue body;

65-third external insulating glue; 651-mating groove; 652-avoidance outlet;

66-fourth outer insulating glue.

Detailed Description

In order to make the above objects, features and advantages of the embodiments of the present application more comprehensible, the technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

With the development of electronic products, the appearance of miniature electric equipment such as Bluetooth headset electronic handrings not only provides higher requirements on the volume, energy density and safety performance of batteries, but also brings new challenges on the assembly of the batteries and the like.

For button cells, when the anode and the cathode are provided with the switching pieces to be connected with an external circuit, the structure of the switching pieces is gradually complicated due to the difference of circuit layouts of electric equipment. Therefore, the manufacturing and processing difficulty of the adapter piece and the assembly difficulty of other parts of the battery are increased, the processing precision and the yield of the adapter piece are difficult to ensure, and the production efficiency of the battery is not improved.

In view of the above, the present utility model provides a battery and an electric device, in which the first switching piece is configured in a flat plate shape, so that the structure is simplified, and the processing and the assembly are easy, which is beneficial to improving the production efficiency of the battery.

A battery 100 according to an embodiment of the first aspect of the present utility model is described below with reference to fig. 1 to 17.

Referring to fig. 1 and 2, a battery 100 according to an embodiment of the present utility model may be a button battery. The battery 100 includes: the battery comprises a housing 1, a battery cell 2, a first switching piece 3 and a second switching piece 4.

Specifically, the case 1 includes a bottom case 11 and a top cover 12, the bottom case 11 is cylindrical, the top end of the bottom case 11 is open, and the top cover 12 covers the open end of the bottom case 11, so that the bottom case 11 and the top cover 12 may together define a housing chamber for housing the battery cell 2.

The battery cell 2 is disposed in the accommodating cavity, and the battery cell 2 has a first tab 22 and a second tab 23 with opposite polarities, for example, the first tab 22 is a positive tab and the second tab 23 is a negative tab. The first tab 22 is connected to the top cover 12, and the second tab 23 is connected to the bottom case 11, so that the top cover 12 serves as a positive electrode of the battery 100, and the bottom case 11 serves as a negative electrode of the battery 100.

At least part of the structure of the first tab 3 is located on top of the top cover 12, in other words, the first tab 3 may be located on top of the top cover 12 as a whole, or may be located on top of the top cover 12 partially, and on the side of the top cover 12 partially. The partial structure that is in top cap 12 top of first switching piece 3 links to each other with top cap 12, and at this moment, first switching piece 3 is the anodal switching piece, and simultaneously, the part that is in top cap 12 top of first switching piece 3 forms into the platy, like this, is favorable to punching press processing, promotes spare part machining efficiency reduce cost, also is convenient for guarantee the dimensional accuracy of first switching piece 3 simultaneously, promotes the product yield.

The second switching piece 4 may be located at a side portion of the bottom case 11, and the second switching piece 4 is connected to the bottom case 11, and in this case, the second switching piece 4 is a negative electrode switching piece. The first and second switching pieces 3 and 4 are each used for connecting an external circuit.

According to the battery 100 of the embodiment of the utility model, the first switching piece 3 is in a flat plate shape, so that on one hand, when the first switching piece 3 is connected with the top cover 12, the first switching piece 3 is more easily contacted with the top cover 12, a welding seam is not easily generated, the welding yield is improved, in addition, the switching piece has a simpler structure, the punching processing is facilitated, the processing efficiency of parts can be improved, the cost is reduced, the dimensional accuracy of the first switching piece 3 is conveniently ensured, and the product yield is improved.

According to some embodiments of the utility model, referring to fig. 2, 3 and 4, the first tab 3 may comprise: the first connection part 31 and the first pin 33, the first connection part 31 is circular, the radius of the first connection part 31 is smaller than the radius of the top cover 12, the first connection part 31 is positioned at the top of the top cover 12, the first connection part 31 is electrically connected with the top cover 12, such as welded, the first pin 33 is positioned at the side part of the housing 1, the first pin 33 can be electrically connected with an external circuit such as a circuit board, the first pin 33 is connected with the first connection part 31, and thus, the first switching piece 3 can connect the top cover 12 serving as a positive electrode with the external circuit. And, compare in the scheme of all establishing the battery top on the whole with first switching piece, establish the one end that is used for connecting external circuit at the lateral part of drain pan 11 with first switching piece 3, the size at the consumer is less, and when the circuit board is located the lateral part of battery compartment, battery 100 is connected with the circuit board more easily when installing to the battery compartment, can solve the connection and the switching on problem of battery 100 and its side circuit board better, when avoiding first switching piece 3 to be in battery 100 top, lead to the problem that the connection structure complicacy and occupation space are big with the circuit board of side.

Referring to fig. 5 and 6, the second switching piece 4 may include: the second connection portion 41 and the second pin 42, the second connection portion 41 is connected with the side wall of the bottom case 11, the second pin 42 extends outwards along the radial direction of the housing 1, for example, the second pin 42 may extend towards the electronic component such as the circuit board on the side thereof so as to be connected with the external circuit such as the circuit board, and the second switching piece 4 is made simple in structure.

Alternatively, referring to fig. 3 and 4, the first pin 33 may include: a first segment 331 and a second segment 332. The first section 331 is parallel to and spaced apart from the side wall of the bottom shell 11, that is, the first section 331 may extend along the axial direction of the bottom shell 11 and be spaced apart from the bottom shell 11 in the radial direction, the top end of the first section 331 is connected to the first connection portion 31, one end of the second section 332 is connected to the bottom end of the first section 331, and the other end extends outward in the radial direction of the bottom shell 11 so as to be connected to an external circuit, so that the first pin 33 has a simple structure and is convenient for manufacturing.

In some embodiments, referring to fig. 3 and 4, the first access panel 3 may further include: the first conductive portion 32. Specifically, the first conductive portion 32 is disposed on top of the top cover 12, the first conductive portion 32 extends along a radial direction of the top cover 12, an inner end of the first conductive portion 32 along the radial direction is connected to the first connection portion 31, and an outer end of the first conductive portion 32 along the radial direction is connected to the first pin 33. Thus, the first conductive part 32 not only realizes the connection between the first connection part 31 and the first pin 33, but also has a simple structure and is convenient for processing.

Optionally, referring to fig. 3 and 4, the first access tab 3 also has a fixing pin 34, the fixing pin 34 being adapted to be connected to a fixing structure in the battery compartment of the electrical consumer. The fixing pin 34 is located at the top of the top cover 12, meanwhile, the fixing pin 34 is located at one side of the first connecting portion 31, which is opposite to the first conductive portion 32 in the radial direction, one end of the fixing pin 34 is connected with the first connecting portion 31, and the other end extends along the radial direction of the top cover 12 and away from the first connecting portion 31. Thus, when the battery 100 is mounted in the battery compartment of the electric device, the mounting efficiency and the mounting stability of the battery 100 can be improved by the mutual cooperation of the fixing pins 34 and the battery fixing structure in the battery compartment. Meanwhile, the fixing pins 34 and the first pins 33 are respectively arranged on the two radial sides of the first connecting part 31, so that the mutual interference of the first pins 33 and the battery fixing structure in the battery compartment of the electric equipment can be avoided.

Alternatively, referring to fig. 3 and 4, the first connecting portion 31 is provided with a first fitting groove 35, the second connecting portion 41 is provided with a second fitting groove 43, and both the first fitting groove 35 and the second fitting groove 43 are adapted to be fitted with a fitting jig.

For example, the first fitting and positioning groove 35 may be formed by being recessed inward in the radial direction by the circumference of the first connection portion 31, and the second fitting and positioning groove 43 may be formed by being recessed upward in the axial direction of the bottom case 11 by the lower edge of the second connection portion 41, so that, when the first and second tabs 3 and 4 are mounted to the corresponding positions of the case 1 by the fitting jig, the alignment efficiency and accuracy of the fitting jig and the first and second tabs 3 and 4 can be improved, thereby ensuring the mounting accuracy of the first and second tabs 3 and 4 on the case 1, facilitating the improvement of the welding accuracy and yield of the first and second tabs 3 and 4 with the case 1, ensuring the performance of the battery 100.

According to some embodiments of the present utility model, referring to fig. 7 and 8, the battery cell 2 may further include a battery cell body 21, the battery cell body 21 may be a roll core, the axial direction of the battery cell body 21 is parallel to the axial direction of the bottom shell 11, the first tab 22 is located at an end of the battery cell body 21 facing the top cover 12 (e.g., an upper end of the battery cell body 21), the second tab 23 is located at an end of the battery cell body 21 facing away from the top cover 12 (e.g., a lower end of the battery cell body 21), in other words, the first tab 22 may be located at the top of the battery cell body 21 so as to be connected to the top cover 12, and the second tab 23 is located at the bottom of the battery cell body 21 so as to be directly connected to the bottom shell 11.

Referring to fig. 7 and 8, the battery 100 further includes: the first inner insulating glue 61 and the second inner insulating glue 62, the first inner insulating glue 61 is arranged between the first tab 22 and the cell body 21 to separate the first tab 22 and the cell body 21, and the second inner insulating glue 62 is arranged between the second tab 23 and the cell body 21 to separate the second tab 23 and the cell body 21, so that the first tab 22 and the second tab 23 can be guaranteed to collect and transmit current better.

Alternatively, with reference to fig. 2, 13 and 14, a portion of the structure of the top cap 12 may be recessed axially and toward the cell body 21 to form the first welding deposit 1231. The inner surface of the first welding sinking platform 1231 can be connected with the first tab 22, and because the top cover 12 has a certain setting height when the bottom shell 11 is covered by the top cover 12, the first welding sinking platform 1231 is arranged on the top cover 12, the height of the top cover 12 can be reduced, so that the top cover 12 and the first tab 22 can be welded, and the height requirement on the battery cell body 21 can be reduced.

Alternatively, referring to fig. 13 and 14, the first welding stage 1231 is located at the middle of the top cover 12, and the first welding stage 1231 is formed with a liquid injection hole 1232, where the liquid injection hole 1232 may penetrate through the top cover 12 along the axial direction of the bottom cover 11, and the liquid injection hole 1232 is used for injecting the electrolyte into the accommodating cavity. The projection of the first tab 22 in the reference plane is staggered from the projection of the liquid injection hole 1232 in the reference plane, and the reference plane is perpendicular to the axial direction of the battery core body 21, so that the situation that the liquid injection hole 1232 is blocked when the first tab 22 is connected with the first welding sinking table 1231, and electrolyte cannot be injected into the accommodating cavity can be avoided.

In some embodiments, referring to fig. 7, the length of the first tab 22 in the radial direction is smaller than the radius of the cell body 21, at this time, the first tab 22 may be welded with the portion of the first welding sink 1231 located along the periphery of the liquid injection hole 1232. In this way, the inner end of the first tab 22 along the radial direction can avoid the liquid injection hole 1232, so as to avoid affecting liquid injection, and in addition, the material consumption can be reduced by reducing the length of the first tab 22.

Alternatively, referring to fig. 8, the length of the second tab 23 in the radial direction may be greater than the radius of the cell body 21, so that the contact and welding area of the second tab 23 and the bottom case 11 may be increased, the welding reliability may be improved, and the resistance of the connection portion between the second tab 23 and the bottom case 11 may be reduced. Of course, the present utility model is not limited thereto, and the length of the second lug 23 in the radial direction may be reasonably selected according to actual needs.

Optionally, in conjunction with fig. 2 and fig. 9 and 10, the battery 100 may further include: the sealing connection 5 and the first external insulating glue 63. Specifically, the first external insulating adhesive 63 is disposed between the top cover 12 and the first conductive portion 32 of the first adapting piece 3, so as to separate the top cover 12 and the first conductive portion 32, an avoidance hole 633 is formed on the first external insulating adhesive 63, the avoidance hole 633 is opposite to the first welding sink 1231 and the first connecting portion 31 along the axial direction of the bottom shell 11, and the plugging connecting piece 5 is located at the outer side of the first welding sink 1231 and is embedded in the first welding sink 1231, so as to plug the liquid injection hole 1232 and prevent the electrolyte from flowing outwards.

Part of the structure of the upper surface of the blocking connection member 5 is protruded to form a connection boss 51, and the connection boss 51 may be welded with the first connection portion 31 through the escape hole 633 in an axial direction upward. In this way, the first tab 22 is connected with the first switching piece 3 through the top cover 12, the blocking connecting piece 5 in sequence, so that current is output outwards, and meanwhile, the problem that the first switching piece 3 cannot be connected with the top cover 12 due to the arrangement of the first external insulating glue 63 when the first switching piece 3 is in a flat plate shape is solved.

In addition, because the first welding sinking platform 1231 stretches into the accommodating cavity and is welded with the first tab 22, the plugging connecting piece 5 is embedded into the first welding sinking platform 1231, the connecting boss 51 of the plugging connecting piece 5 stretches into the avoidance hole 633 and is welded with the first switching piece 3, the radial displacement of the top cover 12 and the first switching piece 3 along the bottom shell 11 can be avoided, the overall structural stability of the shell 1 is higher, and the working reliability of the battery 100 is improved.

Alternatively, referring to fig. 9 and 10, the first external insulation paste 63 may include: a first glue body 632 and a first fixing glue foot 631. Specifically, the first glue body 632 is annular, dodges the hole 633 and is defined by the first glue body 632, the first fixed glue foot 631 is located the week edge of first glue body 632 to the axial extension of first fixed glue foot 631 drain pan 11, the first fixed glue foot 631 links to each other with the lateral wall of drain pan 11, so, compare in first outer insulating glue 63 only links to each other with the top cap 12 part of shell 1, through setting up the first fixed glue foot 631 and link to each other it with the lateral wall of drain pan 11, can improve the connection stability and the reliability of first outer insulating foot and shell 1, greatly reduced holds the risk that the intracavity atmospheric pressure is higher and leads to first outer insulating glue 63 to be pushed up.

In addition, the first pin 33 is attached to a side of the first fixing rubber 631 facing away from the bottom case 11, so that the first fixing rubber 631 can space the first pin 33 and the bottom case 11, and short circuit caused when the first switching piece 3 and the bottom case 11 with opposite polarities are contacted with each other is avoided, thereby improving the safety and reliability of the battery 100.

In some embodiments, referring to fig. 15, the top cover 12 includes: a positive electrode cap plate 123, a negative electrode cap plate 121, and an insulating spacer 122. Specifically, the first welding platform 1231 is formed on the positive cover 123, and the negative cover 121 is disposed on a side of the positive cover 123 facing the bottom case 11 and is connected to the bottom case 11, for example, a peripheral edge of the negative cover 121 is welded to a top end of the bottom case 11, so that the negative cover 121 can provide mounting support for the positive cover 123.

The insulating spacer 122 is sandwiched between the positive electrode cover plate 123 and the negative electrode cover plate 121, and separates the positive electrode separator and the negative electrode cover plate 121, and the insulating spacer 122, the positive electrode cover plate 123 and the negative electrode cover plate 121 may be connected by a hot pressing process. Since the polarity of the negative electrode cap 121 is opposite to the polarity of the positive electrode cap 123 when the negative electrode cap 121 is coupled to the bottom case 11, providing the insulating spacer 122 can prevent a short circuit. The first welding deposition table 1231 of the positive electrode cap plate 123 is adapted to sequentially pass through the insulating spacer 122 and the negative electrode cap plate 121 to be connected with the first tab 22, for example, the negative electrode cap plate 121 and the insulating spacer 122 may be formed in a ring shape so that the first welding deposition table 1231 passes through, and thus, the structure is simple. In addition, the stacking of the three-layer plate-like structure can also increase the structural strength of the top cover 12.

Optionally, in conjunction with fig. 2 and fig. 11 and 12, the battery 100 may further include: a second outer insulating glue 64. Specifically, the second external insulating adhesive 64 covers the portion of the first switching sheet 3 located at the top of the top cover 12, for example, the second external insulating adhesive 64 may cover the first connection portion 31 and the first conductive portion 32 to avoid the portion of the first switching sheet 3 located at the top of the top cover 12 from being in contact with an external conductive object to generate leakage.

Alternatively, referring to fig. 11 and 12, the second outer insulation paste 64 may include: the second adhesive body 643, the positive electrode protection adhesive leg 642 and the second fixing adhesive leg 641. Wherein the second adhesive body 643 covers a portion of the first switching sheet 3 located at the top of the top cover 12, for example, the second adhesive body 643 may be formed in a circular shape so as to entirely cover the first connection portion 31 and the first conductive portion 32. The positive electrode protection rubber feet 642 are arranged on the periphery of the second rubber body 643, the positive electrode protection rubber feet 642 extend along the axial direction of the bottom shell 11 and cover the outer side surfaces of the first pins 33, and therefore electric leakage caused by contact between the first pins 33 and other conductive objects is avoided.

The number of the second fixing rubber feet 641 is at least one, that is, the number of the first fixing rubber feet 631 can be one or a plurality. The at least one second fixed rubber foot 641 is arranged on the periphery of the second rubber body 643, the second fixed rubber foot 641 can extend along the axial direction of the bottom shell 11, when the second fixed rubber feet 641 are multiple, the multiple second fixed rubber feet 641 are arranged at intervals along the circumferential direction of the second rubber body 643, and the second fixed rubber feet 641 are connected with the side wall of the bottom shell 11, so that the connection stability of the second external insulating rubber 64 and the shell 1 can be improved, and meanwhile, the first switching piece 3 can be better fixed.

In some embodiments, in conjunction with fig. 2 and fig. 16 and 17, battery 100 may further include: and a third external insulating paste 65. Specifically, the third external insulating adhesive 65 may extend along the circumferential direction of the bottom shell 11, the third external insulating adhesive 65 is attached to the circumferential wall of the bottom shell 11, the third external insulating adhesive 65 has an avoidance outlet 652, the third external insulating adhesive 65 covers the first section 331 and the second connection portion 41 of the first pin 33, and the second section 332 and the second pin 42 of the first pin 33 are adapted to be led out from the avoidance outlet 652, so that the third external insulating adhesive 65 may further fix the positions of the first adapting piece 3 and the second adapting piece 4 in the circumferential direction of the bottom shell 11, and meanwhile, electrical leakage caused by contact between the first section 331 and the second connection portion 41 of the first pin 33 and other metal pieces may be prevented without affecting connection between the first pin 33 and the second pin 42 and an external circuit.

Alternatively, when the first pin 33 and the second pin 42 are staggered in the circumferential direction, a first avoidance outlet 652 and a second avoidance outlet 652 may be provided on the third outer insulating paste 65, respectively, at which time the first pin 33 extends from the first avoidance outlet 652 and the second pin 42 extends from the second avoidance outlet 652.

Optionally, referring to fig. 16 and 17, the third external insulating glue 65 is provided with a mating groove 651, where the mating groove 651 penetrates through the third external insulating glue 65 along the axial direction of the bottom shell 11, and the mating groove 651 may be adapted to the first section 331 of the first pin 33 and the second connection portion 41 of the second pin 42, so as to better wrap the first section 331 and the second connection portion 41.

Optionally, referring to fig. 2, the battery 100 further includes: fourth outer insulating glue 66. Specifically, the fourth external insulation paste 66 may have a circular shape adapted to the bottom wall of the bottom case 11, and the fourth external insulation paste 66 is adhered to and covers the outer bottom wall of the bottom case 11 to separate the bottom case 11, which is a negative electrode, from other objects, preventing the bottom case 11 from leaking electricity.

The following describes a battery 100 and its manufacturing steps according to one embodiment of the present utility model.

The battery 100 of the present embodiment includes: the battery cell comprises a shell 1, a battery cell 2, a first switching sheet 3, a second switching sheet 4, a plugging connecting piece 5, a first inner insulating adhesive 61, a second inner insulating adhesive 62, a first outer insulating adhesive 63, a second outer insulating adhesive 64, a third outer insulating adhesive 65 and a fourth outer insulating adhesive 66.

The casing 1 comprises a bottom shell 11 and a top cover 12, the bottom shell 11 is cylindrical, the top end of the bottom shell 11 is open, the top cover 12 covers the open end of the bottom shell 11, and the bottom shell 11 and the top cover 12 jointly define a containing cavity for containing the battery cells 2.

The top cover 12 includes: a positive electrode cap plate 123, a negative electrode cap plate 121, and an insulating spacer 122. The negative electrode cover plate 121 and the insulating spacer 122 are formed in a ring shape, the peripheral edge of the negative electrode cover plate 121 is welded to the top end of the bottom shell 11, the positive electrode cover plate 123 is arranged on one side of the negative electrode cover plate 121, which is opposite to the bottom shell 11, and the insulating spacer 122 is arranged between the positive electrode cover plate 123 and the negative electrode cover plate 121 to separate the positive electrode cover plate 123 and the negative electrode cover plate 121. The partial structure at the middle part of the positive cover plate 123 is sunken towards the accommodating cavity along the axial direction of the bottom shell 11 to form a first welding sinking table 1231, the first welding sinking table 1231 sequentially penetrates through the insulating spacer 122 and the negative cover plate 121 along the axial direction so as to be connected with the first tab 22 of the battery core 2, meanwhile, a liquid injection hole 1232 for injecting electrolyte into the accommodating cavity is formed in the first welding sinking table 1231, the plugging connecting piece 5 is embedded in the first welding sinking table 1231 to plug the liquid injection hole 1232 after the electrolyte is injected, and an upward-protruding connecting boss 51 is formed on the upper surface of the plugging connecting piece 5.

The electric core 2 is the core of rolling up, and electric core 2 includes electric core body 21 and first utmost point ear 22 and second utmost point ear 23, and first utmost point ear 22 is the positive electrode ear, and first utmost point ear 22 is in electric core body 21's top and with the heavy platform 1231 welding of the first welding of top cap 12, simultaneously, the inner of first utmost point ear 22 avoids annotating liquid hole 1232 in order to avoid shutoff annotating liquid hole 1232 and lead to unable electrolyte of pouring into. The second electrode lug 23 is a negative electrode lug, the second electrode lug 23 is positioned at the bottom of the battery cell body 21 and welded with the bottom shell 11, the first inner insulating glue 61 is arranged between the first electrode lug 22 and the battery cell body 21 to separate the first electrode lug 22 from the battery cell body 21, and the second inner insulating glue 62 is arranged between the second electrode lug 23 and the battery cell body 21 to separate the second electrode lug 23 from the battery cell body 21.

The first switching piece 3 includes: the first connecting portion 31, the first conductive portion 32 and the first pin 33, wherein the first connecting portion 31 is circular, the first connecting portion 31 is located at the top of the top cover 12, and the first pin 33 is located at the side of the bottom shell 11. The first conductive portion 32 is disposed on the top of the top cover 12, one end of the first conductive portion 32 is connected to the first connection portion 31, and the other end of the first conductive portion 32 extends along the radial direction of the top cover 12 and is connected to the first pin 33. The first pin 33 includes: a first segment 331 and a second segment 332. The first section 331 extends along an axial direction of the bottom shell 11 and is spaced apart from the bottom shell 11 in a radial direction, a top end of the first section 331 is connected to an end of the first conductive portion 32 away from the first connection portion 31, and an end of the second section 332 is connected to a bottom end of the first section 331, and another end extends outward in the radial direction of the bottom shell 11.

The second switching piece 4 includes a second connection portion 41 and a second pin 42, the second connection portion 41 being connected to a side wall of the bottom case 11, the second pin 42 extending radially outward of the housing 1.

The first outer insulating paste 63 includes: the first glue body 632 and the first fixed glue foot 631, the first glue body 632 is annular, the first glue body 632 defines an avoidance hole 633, the avoidance hole 633 is opposite to the first welding platform 1231 and the first connecting portion 31 along the axial direction of the bottom shell 11, and the connecting boss 51 of the plugging connecting piece 5 penetrates through the avoidance hole 633 to be connected with the first connecting portion 31. The first fixing rubber foot 631 is located at the periphery of the first rubber body 632, and the first fixing rubber foot 631 extends in the axial direction of the bottom shell 11, and the first fixing rubber foot 631 is connected with the side wall of the bottom shell 11. The first section 331 of the first pin 33 is attached to a side of the first fixing rubber 631 facing away from the bottom case 11.

The second outer insulation paste 64 may include: the second adhesive body 643, the positive electrode protection adhesive leg 642 and the second fixing adhesive leg 641. The second adhesive body 643 is circular, the second adhesive body 643 covers the first connecting portion 31 and the first conductive portion 32 of the first adhesive piece 3, the positive electrode protective adhesive foot 642 is disposed on a peripheral edge of the second adhesive body 643, the positive electrode protective adhesive foot 642 extends along an axial direction of the bottom shell 11 and covers an outer side surface of the first pin 33, the second fixed adhesive foot 641 may extend along the axial direction of the bottom shell 11, and when the second fixed adhesive feet 641 are plural, the plural second fixed adhesive feet 641 are disposed at intervals along a circumferential direction of the second adhesive body 643, and the second fixed adhesive foot 641 is connected with a side wall of the bottom shell 11.

The third external insulating adhesive 65 may extend along the circumference of the bottom shell 11, the third external insulating adhesive 65 is attached to the circumferential wall of the bottom shell 11, the third external insulating adhesive 65 has an avoidance outlet 652, the third external insulating adhesive 65 covers the first section 331 and the second connection portion 41 of the first pin 33, and the second section 332 and the second pin 42 of the first pin 33 are adapted to be led out from the avoidance outlet 652. The fourth external insulation paste 66 may have a circular shape adapted to the bottom wall of the bottom case 11, and the fourth external insulation paste 66 is adhered to and covers the outer bottom wall of the bottom case 11.

The manufacturing steps of the battery 100 of the present embodiment are as follows:

s1, firstly, sandwiching an insulating spacer 122 between a positive electrode cover plate 123 and a negative electrode cover plate 121, sequentially arranging a positive electrode top cover 12, the insulating spacer 122 and the negative electrode top cover 12 from top to bottom, and then firmly bonding the positive electrode top cover 12, the insulating spacer 122 and the negative electrode top cover 12 in a hot-pressing mode;

s2, placing the winding core in a containing cavity of the shell 1, enabling the second lug 23 and the second inner insulating glue 62 to face the bottom wall of the bottom shell 11, enabling the second inner insulating glue 62 to separate the battery core body 21 and the second lug 23, and welding the second lug 23 and the bottom shell 11 through welding (such as resistance welding or laser welding);

s3, separating the first inner insulating glue 61 from the upper end surface of the first tab 22 and the battery cell body 21, welding the first tab 22 to the first welding platform 1231 of the top cover 12 by welding (such as resistance welding or laser welding), bending the first tab 22, pressing the top cover 12 against the first tab 22, and welding the negative electrode cover plate 121 of the top cover 12 with the bottom shell 11 by laser welding;

S4, placing the assembled battery cell 2 and the assembled battery cell housing 1 into an oven to be baked for a certain time, and removing moisture in the battery cell 2;

s5, injecting a certain amount of electrolyte into the assembled battery cell 2 through the electrolyte injection hole 1232 on the first welding and sinking table 1231, wiping the periphery of the electrolyte injection hole 1232 after the electrolyte injection is finished, and cleaning the outer surface of the first welding and sinking table 1231 of the positive electrode cover plate 123 by utilizing laser; placing the plugging connecting piece 5 on a first welding sinking table 1231, compacting, and welding the plugging connecting piece 5 to the first welding sinking table 1231 in a laser welding mode to firmly connect the plugging connecting piece and the first welding sinking table 1231;

s6, matching and positioning a second assembly positioning groove 43 on the second switching sheet 4 and a positioning pin on an assembly fixture, and connecting the second switching sheet 4 to the peripheral wall of the bottom shell 11 in a welding mode;

s7, bonding the first external insulating adhesive 63 on the upper surface of the positive electrode cover plate 123 in an adhesive manner, and connecting a first fixing adhesive foot 631 of the first external insulating adhesive 63 paper with the bottom shell 11;

s8, placing the first switching sheet 3 on the first external insulating glue 63, matching and positioning the first assembling positioning groove 35 on the first switching sheet 3 and the positioning pin on the assembling clamp, aligning the first connecting part 31 of the first switching sheet 3 with the connecting boss 51 on the upper surface of the plugging connecting piece 5, overlapping the first pin 33 with the first fixing glue leg 631 of the first external insulating glue 63, pressing the first switching sheet 3, tightly contacting the first connecting part 31 with the connecting boss 51 of the plugging connecting piece 5, and welding the two together in a laser welding mode;

S9, sticking a second external insulating adhesive 64 on the upper surface of the first switching sheet 3, wherein the center of the second external insulating adhesive 64 is overlapped with the axis of the bottom shell 11, meanwhile, the positive electrode protective adhesive leg 642 covers the first pin 33, and then the second fixing adhesive leg 641 is stuck on the side wall of the bottom shell 11;

s10, sticking a third external insulating adhesive 65 on the side wall of the packaged bottom shell 11, covering the peripheral wall of the whole bottom shell 11, and enabling the second section 332 of the first pin 33 and the second pin 42 to pass through an avoidance outlet 652 of the third external insulating adhesive 65 during bonding;

s11, the fourth external insulating glue 66 is completely adhered to the outer bottom surface of the bottom shell 11 and covers the outer bottom surface of the bottom shell 11;

s12, switching to the next process.

A powered device according to an embodiment of the second aspect of the present utility model is described below.

The electric equipment provided by the embodiment of the utility model can be miniature electric equipment such as a Bluetooth headset, an electronic bracelet and the like, and can be other electric equipment. The powered device may include: the apparatus main body and the battery 100 in the above-described embodiment. The apparatus body has a battery compartment, and the battery 100 is provided in the battery compartment.

According to the electric equipment provided by the embodiment of the utility model, the battery 100 in the embodiment can be arranged, so that the circuit board can be conveniently arranged at the side part of the battery compartment so as to be electrically connected with the battery 100, and the whole connection structure is simpler.

In this specification, each embodiment or implementation is described in a progressive manner, and each embodiment focuses on a difference from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

Generally, terms should be understood at least in part by use in the context. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, at least in part depending on the context. Similarly, terms such as "a" or "an" may also be understood to convey a singular usage or a plural usage, depending at least in part on the context.

It should be readily understood that the terms "on … …", "above … …" and "above … …" in this disclosure should be interpreted in the broadest sense such that "on … …" means not only "directly on something", but also includes "on something" with intermediate features or layers therebetween, and "above … …" or "above … …" includes not only the meaning "on something" or "above" but also the meaning "above something" or "above" without intermediate features or layers therebetween (i.e., directly on something).

Further, spatially relative terms, such as "below," "beneath," "above," "over," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein interpreted accordingly.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims (15)

1. A battery, comprising:

the shell comprises a bottom shell and a top cover, and the top cover is covered on the bottom shell to jointly define a containing cavity;

the battery cell is arranged in the accommodating cavity and is provided with a first tab and a second tab which are opposite in polarity, the first tab is connected with the top cover, and the second tab is connected with the bottom shell;

a first access panel, at least part of the first access panel being positioned on top of the top cover and connected to the top cover;

and the second rotating sheet is connected with the bottom shell.

2. The battery of claim 1, wherein the battery is configured to provide the battery with a plurality of cells,

The first tab includes: the first connecting part is positioned at the top of the top cover and is connected with the top cover, the first pin is positioned at the side part of the shell, and the first pin is connected with the first connecting part;

the second adapter piece comprises: the second connecting portion is connected with the side wall of the bottom shell, and the second pins extend outwards along the radial direction of the shell.

3. The battery of claim 2, wherein the first tab further comprises: the first conductive part is positioned at the top of the top cover, one end of the first conductive part is connected with the first connecting part, and the other end of the first conductive part extends along the radial direction of the top cover and is connected with the first pin.

4. The battery of claim 3, wherein the first tab further comprises: the fixing pin is positioned on one side, facing away from the first conductive part, of the first connecting part in the radial direction and extends in the radial direction of the top cover.

5. The battery of any one of claims 2-4, wherein the first connection portion is provided with a first assembly detent and the second connection portion is provided with a second assembly detent.

6. The battery of any of claims 2-4, wherein the first pin comprises:

a first section parallel to and spaced apart from a sidewall of the bottom chassis, a top end of the first section being connected to the first connection portion;

and one end of the second section is connected with the bottom end of the first section, and the other end of the second section extends outwards along the radial direction of the bottom shell.

7. The battery of any one of claims 2-4, wherein the middle portion of the top cover is recessed axially and towards the battery cell to form a first welding sink, the first welding sink is connected with the first tab, a liquid injection hole penetrating axially is formed in the first welding sink, projection of the first tab in a reference plane is staggered from projection of the liquid injection hole in the reference plane, and the reference plane is perpendicular to the axial direction of the battery cell.

8. The battery of claim 7, further comprising:

the first outer insulating glue is arranged between the top cover and the first conductive part to separate the top cover from the first conductive part, an avoidance hole is formed in the first outer insulating glue, and the avoidance hole is axially opposite to the first welding sinking table and the first connecting part respectively;

The plugging connecting piece is embedded in the first welding sinking table to plug the liquid injection hole, a connecting boss is formed on one side, facing away from the liquid injection hole, of the plugging connecting piece, and the connecting boss penetrates through the avoidance hole and is connected with the first connecting portion.

9. The battery of claim 8, wherein the first outer insulating paste comprises:

the first glue body is annular, and the avoidance holes are defined by the first glue body;

the first fixed rubber foot is positioned on the periphery of the first rubber body and axially extends from the bottom shell, the first fixed rubber foot is connected with the side wall of the bottom shell, and the first pin is attached to one side, opposite to the bottom shell, of the first fixed rubber foot.

10. The battery of claim 7, wherein the top cover comprises:

the first welding sinking table is formed on the positive electrode cover plate;

the negative electrode cover plate is arranged on one side, facing the bottom shell, of the positive electrode cover plate and is connected with the bottom shell;

the insulating spacer is clamped between the positive electrode cover plate and the negative electrode cover plate, and the first welding sinking table sequentially penetrates through the insulating spacer and the negative electrode cover plate and is connected with the first tab.

11. The battery according to any one of claims 2 to 4, further comprising:

and the second external insulating adhesive is at least partially structurally attached to the part of the first switching sheet, which is positioned at the top of the top cover.

12. The battery of claim 11, wherein the second outer insulating paste comprises:

a second glue body covering a portion of the first tab located at the top of the top cover;

the positive electrode protection rubber feet are arranged on the peripheral edge of the second rubber body, extend along the axial direction of the bottom shell and cover the outer side face of the first pin;

the second fixed rubber feet are at least one, the at least one second fixed rubber foot is arranged on the periphery of the second rubber body and extends along the axial direction of the bottom shell, and the second fixed rubber feet are connected with the side wall of the bottom shell.

13. The battery of claim 5, further comprising: a third external insulating adhesive which extends along the circumferential direction of the bottom shell and is adhered to the circumferential wall of the bottom shell, an avoidance outlet is formed on the third external insulating adhesive,

The third external insulating glue covers the first section of the first pin and the second connecting part, and the second section of the first pin and the second pin are led out from the avoidance outlet.

14. The battery of any one of claims 1-4, further comprising: and the fourth external insulating adhesive is adhered to and covers the outer bottom wall of the bottom shell.

15. A powered device, comprising:

an apparatus body having a battery compartment;

the battery of any one of claims 1-14, the battery being disposed in the battery compartment.