CN219677505U - Battery and electronic equipment - Google Patents

Abstract

The utility model provides a battery and electronic equipment, the battery comprises a shell unit, a battery core component and a circuit board component, wherein the shell unit comprises an upper shell and a lower shell, an upper shell body and a tab connecting part of the upper shell are connected along the length direction of the battery, the lower shell is provided with a first opening, the upper shell body and the tab connecting part are covered on the first opening and form a containing cavity with the lower shell, and one side of the tab connecting part, which is away from the first opening, is spaced from the upper shell body in the thickness direction of the upper shell body; the battery cell assembly is positioned in the accommodating cavity and comprises two electrode lugs, and at least one electrode lug is connected with the electrode lug connecting part; the circuit board assembly is electrically connected with the tab connecting portion, extends along the width direction of the battery and is attached to one side, deviating from the first opening, of the tab connecting portion. By changing the structure of the shell, the connection among the components is more compact, and the miniaturization design of the battery can be realized.

Description

Battery and electronic equipment

Technical Field

The utility model relates to the technical field of battery structures and electronic equipment, in particular to a battery and electronic equipment.

Background

Along with the progress of technology and the arrival of intelligent wave of electronic products, electronic devices such as intelligent glasses, intelligent watches, intelligent wristbands and temperature patches are becoming more popular in daily life of people. These miniaturized electronic devices place new demands on the size of lithium ion batteries.

The existing lithium ion battery comprises a soft package lithium ion battery and a steel shell lithium ion battery, wherein the soft package lithium ion battery is used for carrying out hot-pressing sealing on an electric core through an aluminum plastic film, the steel shell lithium ion battery is used for packaging the electric core through a shell, and the sealed lithium ion battery is connected with other components through a tab.

However, when the soft package lithium ion battery is sealed by hot pressing, the size of the battery is increased at the joint of the aluminum-plastic film, the thickness of the battery is increased due to the space for connecting the steel shell battery and other components, the size of the battery is further affected, and the miniaturization design of the battery cannot be realized.

Disclosure of Invention

The utility model provides a battery and an electronic device, which can reduce the size of the battery and further realize the miniaturization design of the battery.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

in a first aspect, the utility model provides a battery, comprising a housing unit, a battery core assembly and a circuit board assembly, wherein the housing unit comprises an upper housing and a lower housing, the upper housing comprises an upper housing body and a tab connecting part, the tab connecting part is connected to one side of the upper housing body in the length direction of the battery, the lower housing is provided with a first opening, the upper housing body and the tab connecting part are jointly covered on the first opening, a containing cavity is jointly formed by the upper housing body and the lower housing, and one side of the tab connecting part, which is away from the first opening, and the upper housing body are provided with a distance in the thickness direction of the upper housing body;

the battery cell assembly is positioned in the accommodating cavity and comprises two electrode lugs, and at least one electrode lug is connected with the electrode lug connecting part;

the circuit board assembly is electrically connected with the tab connecting portion, extends along the width direction of the battery and is attached to one side, deviating from the first opening, of the tab connecting portion.

As a possible embodiment, the edge shape of the first opening and the cross-sectional profile shape of the upper case in the thickness direction of the battery are adapted.

As one possible embodiment, the upper case body has a second opening opposite to the first opening, the tab connection portion extends in the longitudinal direction of the battery, and the side wall of the tab connection portion is flush with the outer wall surface where the second opening is located.

As one possible embodiment, tab connection parts extend to opposite ends of the upper case body in the width direction of the battery.

As one possible embodiment, the tab connection portion has a smaller dimension in the width direction of the battery than the upper case body.

As one possible implementation manner, the battery cell assembly comprises a connecting piece, wherein one side of the connecting piece facing away from the first opening is connected with the circuit board assembly along the thickness direction of the battery, and one side of the connecting piece facing towards the first opening is connected with one of the two lugs;

the tab connecting portion is provided with a first through hole, and the connecting piece penetrates through the first through hole.

As one possible implementation manner, the connecting piece comprises a first plate body, a connecting piece body and a second plate body, wherein the first plate body, the connecting piece body and the second plate body are sequentially connected along the thickness direction of the battery, and the connecting piece body is arranged through the first through hole;

one side of the first plate body, which is away from the connecting piece body, is connected with the lug, and one side of the second plate body, which is away from the connecting piece body, is connected with the circuit board assembly.

As one possible embodiment, one of the two tabs is electrically connected to the tab connection portion, and the other is electrically connected to the upper case body.

As a possible implementation manner, the tab connection part is provided with a second through hole and a sealing cover plate, and the second through hole is communicated with the accommodating cavity and the outside of the battery;

the sealing cover plate is covered on the second through hole.

In a second aspect, the utility model provides an electronic device comprising any of the foregoing batteries.

The utility model provides a battery and electronic equipment, the battery comprises a shell unit, a battery core component and a circuit board component, the shell unit comprises an upper shell and a lower shell, the upper shell comprises an upper shell body and a tab connecting part, the tab connecting part is connected to one side of the upper shell body, which is positioned in the length direction of the battery, the lower shell is provided with a first opening, the upper shell body and the tab connecting part are jointly covered on the first opening, an accommodating cavity is jointly formed by the upper shell body and the lower shell body, and one side of the tab connecting part, which is away from the first opening, is spaced from the upper shell body in the thickness direction of the upper shell body; the battery cell assembly is positioned in the accommodating cavity and comprises two electrode lugs, and at least one electrode lug is connected with the electrode lug connecting part; the circuit board assembly is electrically connected with the tab connecting portion, extends along the width direction of the battery and is attached to one side, away from the first opening, of the tab connecting portion. Through the structural design, the structure of the shell is fully utilized, so that the assembly connection among all the parts is more compact, the thickness of the battery is reduced, and the battery is miniaturized by matching with the size of the shell unit.

Drawings

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

Fig. 1 is an exploded view of a battery according to an embodiment of the present utility model;

fig. 2 is a schematic diagram of a connection structure of a tab and a tab connection portion in a battery according to a first embodiment of the present utility model;

fig. 3 is a schematic structural view of an upper case in a battery according to a first embodiment of the present utility model;

fig. 4 is a schematic structural view of a lower case in a battery according to a first embodiment of the present utility model;

fig. 5 is a schematic structural diagram of a battery according to a second embodiment of the present utility model;

fig. 6 is an exploded view of a battery according to a second embodiment of the present utility model;

fig. 7 is a schematic structural diagram of a lower case in a battery according to a second embodiment of the present utility model;

fig. 8 is a schematic structural diagram of an upper case in a battery according to a second embodiment of the present utility model;

fig. 9 is an a-direction cross-sectional view of a battery provided by an embodiment of the present utility model;

FIG. 10 is a partial enlarged view of B in FIG. 9;

fig. 11 is a schematic view illustrating a space structure of a housing unit of a battery according to an embodiment of the present utility model;

fig. 12 is a schematic space structure of a housing unit of a battery according to a second embodiment of the present utility model.

Reference numerals illustrate:

100-cell; 110-a housing unit; 120-cell assembly; 130-a circuit board assembly;

111-a lower housing; 112-an upper housing; 111 a-lower housing edge;

1111—a first opening; 1121-an upper housing body; 1122-tab connection; 1123-an avoidance space; 1124-second opening; 1124 a-outer wall surface; 1125-a first via; 1126-a second through hole; 1127-tab connection plates; 1128-insulating gummed paper; 1129-a sealing cover plate; 1130-a first avoidance zone; 1131-a third avoidance zone; 1132-a second avoidance zone;

121-a cell body; 122. 122a, 122 b-tabs; 123-connecting piece; 124. 124a, 124 b-sealing plates;

1231-a second plate; 1232-a first plate; 1233-connector body.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. The following embodiments and features of the embodiments may be combined with each other without conflict.

In the prior art, along with the progress of technology and the arrival of intelligent wave of electronic products, electronic devices such as intelligent glasses, intelligent watches, intelligent wristbands, temperature patches and the like are increasingly popularized in daily life of people. These miniaturized electronic devices place new demands on the size of lithium ion batteries. The existing lithium ion battery comprises a soft package lithium ion battery and a steel shell lithium ion battery, wherein the soft package lithium ion battery is used for carrying out hot-pressing sealing on an electric core through an aluminum plastic film, the steel shell lithium ion battery is used for packaging the electric core through a shell, and the sealed lithium ion battery is connected with other components through a tab. However, when the soft package lithium ion battery is sealed by hot pressing, the size of the battery is increased at the joint of the aluminum-plastic film, the thickness of the battery is increased due to the space for connecting the steel shell battery and other components, the size of the battery is further affected, and the miniaturization design of the battery cannot be realized.

In order to overcome the defects in the prior art, the utility model provides a battery and electronic equipment, wherein the battery comprises a shell unit, a battery core assembly and a circuit board assembly, the shell unit comprises an upper shell and a lower shell, the upper shell comprises an upper shell body and a tab connecting part, the tab connecting part is connected to one side of the upper shell body, which is positioned in the length direction of the battery, the lower shell is provided with a first opening, the upper shell body and the tab connecting part are jointly covered on the first opening, an accommodating cavity is jointly formed by the upper shell body and the lower shell body, and one side of the tab connecting part, which is away from the opening, and the upper shell body are provided with a distance in the thickness direction of the upper shell body; the battery cell assembly is positioned in the accommodating cavity and comprises two electrode lugs, and at least one electrode lug is connected with the electrode lug connecting part; the circuit board assembly is electrically connected with the tab connecting portion, extends along the width direction of the battery and is attached to one side, away from the opening, of the tab connecting portion. Through this kind of structure setting, make full use of the structure of casing make the assembly connection between each part compacter to reduce the thickness of battery, and then with the size cooperation of casing unit realize the miniaturized design of battery.

The present utility model will be described in detail with reference to the accompanying drawings so that those skilled in the art can more clearly understand the present utility model.

Example 1

The utility model provides a battery 100, which comprises a shell unit 110, a battery core assembly 120 and a circuit board assembly 130, wherein the shell unit 110 comprises an upper shell 112 and a lower shell 111, the upper shell 112 comprises an upper shell body 1121 and a tab connecting part 1122, the tab connecting part 1122 is connected to one side of the upper shell body 1121, which is positioned in the length direction of the battery 100, the lower shell 111 is provided with a first opening 1111, the upper shell body 1121 and the tab connecting part 1122 are jointly covered on the first opening 1111 and form a containing cavity together with the lower shell 111, and one side of the tab connecting part 1122, which is away from the first opening 1111, and the upper shell body 1121 are provided with a distance in the thickness direction of the upper shell body 1121;

the battery cell assembly 120 is located in the accommodating cavity, and the battery cell assembly 120 includes two tabs 122, at least one tab 122 is connected with the tab connection portion 1122;

the circuit board assembly 130 is electrically connected to the tab connection portion 1122, extends in the width direction of the battery 100, and is attached to a side of the tab connection portion 1122 facing away from the first opening 1111.

Fig. 1 is an exploded view of a battery according to an embodiment of the present utility model; fig. 2 is a schematic diagram of a connection structure of a tab and a tab connection portion in a battery according to a first embodiment of the present utility model; fig. 3 is a schematic structural view of an upper case in a battery according to a first embodiment of the present utility model; fig. 4 is a schematic structural view of a lower case in a battery according to a first embodiment of the present utility model; fig. 11 is a schematic space structure of a housing unit of a battery according to an embodiment of the utility model.

As shown in fig. 1-4 and 11, the battery 100 provided in the present embodiment includes a housing unit 110, a battery cell assembly 120 and a circuit board assembly 130.

The case unit 110 includes an upper case 112 and a lower case 111, the upper case 112 includes an upper case body 1121 and tab connection portions 1122, the tab connection portions 1122 and the upper case body 1121 are connected along the length direction of the battery 100, and the tab connection portions 1122 extend along the width direction of the upper case body 1121, it being understood that the tab connection portions 1122 are connected to one side of the upper case body 1121 in the length direction of the battery 100.

The lower case 111 has a first opening 1111, the first opening 1111 is opposite to the upper case 112, the upper case 112 covers the first opening 1111, that is, the upper case body 1121 and the tab connection portion 1122 cover the first opening 1111 together, and at this time, the upper case 112 and the lower case 111 form a housing cavity together.

Referring to fig. 1, 3 and 11, the tab connection portion 1122 has a distance from the side facing away from the first opening 1111 and the upper case body 1121 in the thickness direction of the upper case body 1121, and the side facing away from the first opening 1111 of the tab connection portion 1122 forms an escape space 1123.

The battery core assembly 120 in this embodiment includes a battery core body 121 and two tabs 122, at least one of the two tabs 122 is connected with a tab connection portion 1122, and the circuit board assembly 130 extends along the width direction of the battery 100, and the first end of the circuit board assembly 130 is electrically connected with the tab connection portion 1122, and is attached to a side of the circuit board assembly 130 facing away from the first opening 1111 along the width extending direction of the battery 100, where the second end of the circuit board assembly 130 is used for being connected with an external device. The circuit board assembly 130 at this time is located in the escape space 1123.

Through the above-mentioned structure setting, make the sealed parcel of electric core subassembly 120 in the holding chamber, and formed along battery thickness direction's interval through last casing body and utmost point ear connecting portion and dodge the space, and assemble circuit board subassembly and other external equipment through the electricity and dodge the space, thereby realize that the whole assembly structure of battery is compacter, and then make the structure size of battery reduce, and the size of casing unit can change according to actual conditions, each part and casing unit mutually support and then can realize the miniaturized design of battery.

In addition, the sizes of the battery cell body and the housing unit in the embodiment can be moderately changed according to actual production, so that batteries with various sizes are designed to adapt to different installation environments.

As one possible embodiment, the edge shape of the first opening 1111 and the sectional profile shape of the upper case 112 in the thickness direction of the battery are adapted.

As shown in fig. 1 and 4, the upper case 112 and the lower case 111 are fixedly connected, and the lower case 111 has a first opening 1111, the first opening 1111 and the upper case 112 relatively form a receiving cavity together, it is easy to understand that the cross-sectional profile shapes of the lower case edge 111a and the upper case 112 in the thickness direction of the battery are completely identical, and of course, in order to make the structure of the case unit satisfy different use environments and different size structures, the edge shape of the first opening 1111 and the cross-sectional profile shape of the upper case 112 in the thickness direction of the battery are adapted, and at this time, the overall structure of the case unit is uniformly changed along with the actual situation.

As an alternative embodiment, the upper case body 1121 has a second opening 1124 opposite to the first opening 1111, the tab connection portion 1122 extends in the longitudinal direction of the battery 100, and the side wall of the tab connection portion 1122 is flush with the outer wall surface 1124a where the second opening 1124 is located.

Referring to fig. 1 to 3, the upper case body 1121 also has a second opening 1124 on the side opposite to the first opening 1111, and the second opening 1124 and a portion of the first opening 1111 overlap in the horizontal direction, and the tab connection portion 1122 is also covered on the first opening 1111, so that the tab connection portion 1122 is flush with the side wall of the first opening and the outer wall surface 1124a where the second opening 1124 is located in order to secure the sealing performance of the case unit 110. The tab connection portion 1122 extends in the longitudinal direction of the battery 100, and the side edge of the tab connection portion 1122 in the battery width direction and the upper case body 1121 are connected in the longitudinal direction of the battery 100.

As one possible embodiment, tab connection parts 1122 extend to opposite ends of the upper case body 1121 in the width direction of the battery 100.

As also shown in fig. 1-4, the tab connection portion 1122 extends along the length direction of the battery 100, one side edge of the tab connection portion 1122 along the length direction of the battery 100 is connected to the upper case body 1121, and the tab connection portion 1122 is the same as the width of the upper case body 1121 along the width direction of the battery 100, that is, the tab connection portion 1122 extends to the opposite ends of the upper case body 1121 in the width direction of the battery 100.

Possibly, a space is formed between one side of the tab connection portion 1122, which is away from the first opening 1111, and the upper housing body 1121 in the thickness direction of the upper housing body 1121, and an avoidance space 1123 is formed at one side of the tab connection portion 1122, which is away from the first opening 1111, and the avoidance space 1123 in this embodiment includes a first avoidance area 1130, where the first avoidance area 1130 is surrounded by a side wall of the tab connection portion 1122, which is away from the first opening 1111, and the upper housing body 1121 together;

the circuit board assembly 130 is located in a first avoidance region 1130.

In this embodiment, as shown in fig. 11, since the tab connection portion 1122 and the outer wall surface 1124a of the second opening 1124 are flush, i.e., in the thickness direction of the battery 100, the tab connection portion 1122 and the side of the upper case body 1121 facing away from the first opening 1111 have a height difference, forming a relief space 1123. The avoidance space 1123 includes a first avoidance region 1130, the first avoidance region 1130 being defined by a side wall of the tab connection 1122 facing away from the first opening 1111 and the upper case body 1121, the first avoidance region 1130 extending in the width direction of the battery 100. The circuit board assembly 130 is located in the first avoidance area 1130, the extending directions of the circuit board assembly 130 and the first avoidance area 1130 are consistent, and the side wall of the circuit board assembly 130, on one side, deviating from the first opening 1111, of the first avoidance area 1130 and the tab connection 1122 is attached.

It should be noted that, the first avoidance area 1130 may further include an external device, where the external device may be connected to the circuit board assembly 130, and may also be connected to the upper housing body 1121, where the first avoidance area 1130 accommodates multiple connection assemblies, so that the component integration of the battery 100 is better, and the connection structure between the components may be effectively simplified.

As one possible embodiment, the battery cell assembly 120 includes a connection member 123, and a side of the connection member 123 facing away from the first opening 1111 is connected to the circuit board assembly 130 in the thickness direction of the battery, and a side of the connection member 123 facing toward the first opening 1111 is connected to one of the two tabs 122;

the tab connection portion 1122 is provided with a first through hole 1125, and the connection member 123 is disposed through the first through hole 1125.

As shown in fig. 1-4 and 11, the battery cell assembly 120 in this embodiment further includes a connecting member 123, where the connecting member 123 is connected to the tab connection portion 1122, specifically, the tab connection portion 1122 has a first through hole 1125, the connecting member 123 is disposed through the first through hole 1125, the connecting member 123 extends along the thickness direction of the battery 100, one side of the connecting member 123 facing the first opening 1111 is connected to the tab 122, and one side of the connecting member 123 facing away from the first opening 1111 faces the first avoidance area 1130 and is connected to the circuit board assembly 130 in the first avoidance area 1130.

Fig. 9 is an a-direction cross-sectional view of a battery provided by an embodiment of the present utility model; fig. 10 is a partial enlarged view of B in fig. 9.

The connection manner of the connection member and the tab is specifically described with reference to fig. 1 to 4, 8 and 9.

The connecting member 123 in this embodiment includes a first plate body 1232, a connecting member body 1233 and a second plate body 1231, the connecting member body 1233 extends along the thickness direction of the battery 100, the first end of the connecting member body 1233 extends to the accommodating cavity, the connecting member body 1233 extends to the first avoidance area 1130, and the first plate body 1232, the connecting member body 1233 and the second plate body 1231 are sequentially connected along the thickness direction of the battery 100, and the connecting member body 1233 penetrates through the first through hole 1125.

The first through hole 1125 communicates the accommodating chamber with the outside of the battery, and in order to improve the sealability of the battery, a sealing plate 124 is additionally provided at the junction of the connecting member 123 and the first through hole 1125 of the tab connection portion 1122, and the sealing plate 124a is positioned between the side wall of the second plate body 1231 facing the tab connection portion 1122 and the side wall of the tab connection portion 1122 facing the second plate body 1231. The sealing plate 124b is located between a side wall of the first plate body 1232 facing the tab connection portion 1122 and a side wall of the tab connection portion 1122 facing the first plate body 1232. Through the arrangement of the two sealing plates 124 on the two opposite sides of the first through hole 1125, the blocking of the accommodating cavity and the outside of the battery is realized, so that the tightness of the battery 100 is improved, and meanwhile, the entering of the outside moisture of the battery 100 into the accommodating cavity through the connecting part 123 and the connecting part of the first through hole 1125 can be effectively reduced, and the safety and the service life of the battery 100 are improved.

It is to be understood that, in this embodiment, two tabs 122 are respectively a tab 122a and a tab 122b, the two tabs 122 are connected with the cell body 121 along the length direction of the battery 100, and the two tabs 122 are distributed at intervals along the width direction of the battery 100, specifically, the tab 122a is connected to one side of the first plate body 1232 deviating from the connecting member body 1233, the tab 122 is connected to the tab connecting portion 1122 through the tab connecting plate 1127, and in addition, the circuit board assembly 130 is connected to one side of the second plate body 1231 deviating from the connecting member body 1233. Correspondingly, the output of the battery cell assembly 120 has two paths, the first path is that the tab 122b is connected with the tab connection part 1122 to serve as output, and the second path is that the tab 122a is connected with the circuit board assembly 130 through the connection piece 123 to form output.

Alternatively, as shown in fig. 4, the tab connection part 1122 has a second through hole 1126 and a sealing cover plate 1129, the second through hole 1126 communicating the receiving chamber and the outside of the battery 100; the sealing cover plate 1129 covers the second through hole 1126. The second through hole 1126 communicates the accommodating cavity with the outside of the battery 100, and after the upper case 112 and the lower case 111 are connected, a medium such as an electrolyte can be injected into the accommodating cavity through the second through hole 1126, and in addition, when the electrolyte is polluted, the electrolyte can be replaced at any time through the second through hole 1126, so that the service life of the battery is prolonged.

In addition, the battery cell assembly 120 in this embodiment includes the insulating adhesive paper 1128, where the insulating adhesive paper 1128 is located between the tab 122b and the inner sidewall of the upper housing body 1121, so that the series connection of the tab 122b and the upper housing body 1121 can be effectively prevented from causing the leakage of the battery cell body.

The utility model provides a battery which comprises a shell unit, a battery core assembly and a circuit board assembly, wherein the shell unit comprises an upper shell and a lower shell, the upper shell comprises an upper shell body and a tab connecting part, the tab connecting part is connected to one side of the upper shell body, which is positioned in the length direction of the battery, the lower shell is provided with a first opening, the upper shell body and the tab connecting part are jointly covered on the first opening, a containing cavity is jointly formed by the upper shell body and the lower shell body, and one side of the tab connecting part, which is away from the first opening, is separated from the upper shell body in the thickness direction of the upper shell body; the battery cell assembly is positioned in the accommodating cavity and comprises two electrode lugs, and at least one electrode lug is connected with the electrode lug connecting part; the circuit board assembly is electrically connected with the tab connecting portion, extends along the width direction of the battery and is attached to one side, away from the first opening, of the tab connecting portion. Through this kind of structure setting, make full use of the structure of casing make the assembly connection between each part compacter to reduce the thickness of battery, and then with the size cooperation of casing unit realize the miniaturized design of battery.

Example two

The battery structure in this embodiment is identical to that of the battery provided in embodiment one, except that the dimensions of the tab connection portion and the upper case body in the battery width direction are different from those corresponding to embodiment one, and therefore, this section will be described only with respect to the structure different from embodiment one without affecting the understanding of those skilled in the art.

Fig. 5 is a schematic structural diagram of a battery according to a second embodiment of the present utility model; fig. 6 is an exploded view of a battery according to a second embodiment of the present utility model; fig. 7 is a schematic structural diagram of a lower case in a battery according to a second embodiment of the present utility model; fig. 8 is a schematic structural diagram of an upper case in a battery according to a second embodiment of the present utility model; fig. 12 is a schematic space structure of a housing unit of a battery according to a second embodiment of the present utility model.

The contents of the present embodiment will be described with reference to fig. 5 to 8 and 12.

As one possible embodiment, the tab connection portion 1122 has a smaller dimension in the width direction of the battery 100 than the upper case body 1121.

Specifically, the tab connection part 1122 has a smaller size than the upper case body 1121 in the width direction of the battery 100, and one side edge of the tab connection part 1122 in the width direction of the battery may be flush with the side edge of the upper case body 1121, or both side edges of the tab connection part 1122 in the width direction of the battery 100 may be located between the opposite side edges of the upper case body 1121 in the width direction of the battery 100.

Possibly, as shown in fig. 12, when a side edge of the tab connection portion 1122 along the battery width direction may be flush with a side edge of the upper case body 1121, the avoidance space 1123 includes a second avoidance region 1132 and a third avoidance region 1131, where the second avoidance region 1132 is surrounded by an end portion of the tab connection portion 1122, the upper case body 1121, and the lower case 111 together; the third avoidance region 1131 is defined by the upper housing body 1121 and a side wall of the tab connection 1122 facing away from the first opening 1111; the circuit board assembly 130 is located in the second avoidance region 1132 and the third avoidance region 1131.

It is possible that one of the two tabs 122 is electrically connected to the tab connection 1122 and the other is electrically connected to the upper case body 1121.

As shown in fig. 5, 6 and 8, tab 122a is connected to the circuit board assembly by a connector 123, and tab 122b is bent toward the cell body 121 in the thickness direction of the battery 100 and connected to the side wall of the upper case body 1121 by a tab connection plate 1127.

The cross-sectional profile of the upper case relative to the first opening in this embodiment is the same as the profile of the lower case.

According to the battery provided by the embodiment, the relative width of the lug connection part and the upper shell body is changed, so that the increase of the avoidance space is realized, the assembly position of the battery part in the avoidance space is more diversified, and the integration level of the battery is improved by intensively installing all the parts in the avoidance space, so that the overall size of the battery is effectively reduced, and the miniaturization of the battery structure can be realized.

Example III

The present utility model provides an electronic device comprising any of the foregoing batteries 100.

The electronic device in this embodiment is, for example: the battery in the embodiment can be assembled to effectively reduce the weight of the electronic equipment, and the structure of the electronic equipment is more compact, so that the electronic equipment is miniaturized and light-weight.

It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described 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 so 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 (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 utility model, and not for limiting the same; although the utility model 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 utility model.

Claims (10)

1. The battery is characterized by comprising a shell unit, a battery core assembly and a circuit board assembly, wherein the shell unit comprises an upper shell and a lower shell, the upper shell comprises an upper shell body and a tab connecting part, the tab connecting part is connected with one side of the upper shell body in the length direction of the battery, the lower shell is provided with a first opening, the upper shell body and the tab connecting part are jointly covered on the first opening and form a containing cavity together with the lower shell body, and one side of the tab connecting part, which is away from the first opening, and the upper shell body are provided with a distance in the thickness direction of the upper shell body;

the battery cell assembly is positioned in the accommodating cavity and comprises two electrode lugs, and at least one electrode lug is connected with the electrode lug connecting part;

the circuit board assembly is electrically connected with the tab connection part, extends along the width direction of the battery and is attached to one side, deviating from the first opening, of the tab connection part.

2. The battery according to claim 1, wherein an edge shape of the first opening and a sectional profile shape of the upper case in a thickness direction of the battery are adapted.

3. The battery according to claim 2, wherein the upper case body has a second opening opposite to the first opening, the tab connection portion extends in a longitudinal direction of the battery, and a side wall of the tab connection portion is flush with an outer wall surface where the second opening is located.

4. The battery according to claim 3, wherein the tab connection portions extend to opposite ends of the upper case body in the width direction of the battery.

5. The battery according to claim 3, wherein a dimension of the tab connection portion in a width direction of the battery is smaller than a dimension of the upper case body in the width direction of the battery.

6. The battery according to any one of claims 1 to 5, wherein the cell assembly includes a connecting member, a side of the connecting member facing away from the first opening is connected to the circuit board assembly, and a side of the connecting member facing toward the first opening is connected to one of the two tabs in a thickness direction of the battery;

the tab connection part is provided with a first through hole, and the connecting piece is arranged through the first through hole.

7. The battery according to claim 6, wherein the connecting member comprises a first plate body, a connecting member body and a second plate body, the first plate body, the connecting member body and the second plate body are connected in sequence along the thickness direction of the battery, and the connecting member body is arranged through the first through hole;

one side of the first plate body, which is away from the connecting piece body, is connected with the tab, and one side of the second plate body, which is away from the connecting piece body, is connected with the circuit board assembly.

8. The battery of claim 7, wherein one of the two tabs is electrically connected to the tab connection portion and the other is electrically connected to the upper case body.

9. The battery according to any one of claims 1 to 5, wherein the tab connection portion has a second through hole and a sealing cover plate, the second through hole communicating the accommodation chamber and the outside of the battery;

the sealing cover plate is covered on the second through hole.

10. An electronic device comprising a battery as claimed in any one of claims 1-9.