CN216054878U - Battery pack and terminal device - Google Patents
Battery pack and terminal device Download PDFInfo
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- CN216054878U CN216054878U CN202122370705.0U CN202122370705U CN216054878U CN 216054878 U CN216054878 U CN 216054878U CN 202122370705 U CN202122370705 U CN 202122370705U CN 216054878 U CN216054878 U CN 216054878U
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- battery
- thickness direction
- battery protection
- bending portion
- top seal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model provides a battery pack and terminal equipment, wherein the battery pack comprises a battery core and a battery protection board, the battery core is connected with the battery protection board, one end face of the battery protection board in the thickness direction is opposite to the end face of one end of the battery core where an electrode is located, the extension face of the end face of the battery protection board in the thickness direction is intersected with the extension face of the end face of the battery core in the thickness direction, and the terminal equipment comprises the battery pack. The battery assembly provided by the embodiment of the utility model reduces the space occupancy rate of the battery protection board, so that the available space of the battery core is increased, the larger the included angle is, the larger the available space of the battery core is, and under the condition of not changing the volume of the battery, the occupancy rate of the battery core on the volume of the battery is improved, so that the capacity of the battery is increased.
Description
Technical Field
The utility model relates to the technical field of terminals, in particular to a battery pack and terminal equipment.
Background
Aiming at terminal equipment such as a mobile phone and a tablet personal computer, the cruising ability is always a factor which greatly influences the user experience, and along with the arrival of the 5G era, the mobile electronic equipment such as the mobile phone and the like has an increasingly large demand on the electric quantity of a battery, but because more and more components and parts are arranged in the terminal, the battery is limited by the internal space of the terminal equipment, the volume and the capacity of the battery are always difficult to obviously improve, and the cruising ability of the terminal equipment is also difficult to improve.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the embodiment of the utility model provides a battery assembly, which can improve the length of a battery core and effectively improve the capacity of a battery.
The embodiment of the utility model provides terminal equipment which has long endurance.
The battery pack comprises a battery core and a battery protection plate, wherein the battery core is connected with the battery protection plate, one end face of the battery protection plate in the thickness direction is opposite to the end face of one end of the battery core where an electrode is located, and an extension face of the end face of the battery protection plate in the thickness direction is intersected with an extension face of the end face of the battery core in the thickness direction.
In the battery assembly provided by the embodiment of the utility model, the extending surface of the end surface of the battery protection plate in the thickness direction is intersected with the extending surface of the end surface of the battery cell in the thickness direction, so that the space occupancy rate of the battery protection plate in the battery is reduced, the available space of the battery cell is increased, the occupation ratio of the battery cell in the battery volume is improved under the condition that the battery volume is not changed, and the capacity of the battery is increased.
In some embodiments, the battery cell includes a cell body, a top seal, and a tab, where one end of the top seal is connected to one end of the cell body, the other end of the top seal is connected to one end of the tab, and the other end of the tab is connected to the battery protection board.
In some embodiments, the top seal includes a first bending portion and a second bending portion connected to each other, the first bending portion is sequentially bent along a length direction of the battery cell and a thickness direction of the battery cell, the second bending portion is sequentially bent along the length direction of the battery cell and the thickness direction of the battery cell, and an end of the second bending portion is located between the first bending portion and the battery cell body.
In some embodiments, the tab is connected to a distal end of the second bent portion.
In some embodiments, an extension plane of the end face in the thickness direction of the battery protection plate and an extension plane of the end face in the thickness direction of the battery cell are perpendicular to each other.
In some embodiments, the battery further comprises a curing adhesive, and the curing adhesive is filled between the top seal and the battery cell body.
In some embodiments, the curing glue is a low-temperature hot-melt curing glue or an ultraviolet curing glue.
In some embodiments, the top seal further comprises a connector disposed between the first bent portion and the battery protection plate to connect the top seal with the battery protection plate.
In some embodiments, the connector is a foam double sided tape.
The terminal device of the embodiment of the utility model comprises the battery pack of the embodiment.
Drawings
Fig. 1 is a schematic view of a battery pack according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of an acute included angle between a battery core and a battery protection board of a battery assembly according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of an obtuse angle between a battery core and a battery protection board of a battery assembly according to an embodiment of the present invention.
Reference numerals: the battery cell comprises a battery cell 1, a battery cell body 11, a top seal 12, a first bending part 121, a second bending part 122 and a tab 13;
a battery protection plate 2;
and a connecting piece 4.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
A battery module according to an embodiment of the present invention is described below with reference to the drawings.
As shown in fig. 1, a battery pack according to an embodiment of the present invention includes a battery cell 1 and a battery protection plate 2, the battery cell 1 is connected to the battery protection plate 2, an end face (e.g., a left end face of the battery cell 1 in fig. 1) in a thickness direction (a left-right direction indicated by an arrow in fig. 1) of the battery protection plate is disposed opposite to an end face (e.g., a right end face of the battery cell 1 in fig. 1) at an end where an electrode of the battery cell is located, and an extension plane of the end face in the thickness direction of the battery protection plate 2 intersects with an extension plane of the end face in the thickness direction (e.g., a vertical direction indicated by an arrow in fig. 1) of the battery cell 1.
It can be understood that the end surface of the battery protection plate 2 in the thickness direction and the end surface of the battery cell 1 in the thickness direction are not parallel to each other, that is, the battery protection plate 2 is no longer laid flat but has a certain inclination angle.
In other words, an included angle between two end faces of the battery protection plate 2 and the battery core 1, which are oppositely disposed, is greater than or equal to 0 degree and less than 90 degrees, or greater than 90 degrees and less than or equal to 180 degrees. When the contained angle between two relative terminal surfaces that set up of battery protection board 2 and electric core 1 is for being greater than 0 degree and being less than 90 degrees or being greater than 90 degrees and being less than 180 degrees, compares the contained angle between two relative terminal surfaces that set up of battery protection board 2 and electric core 1 and is the condition of 90 degrees, and battery protection board 2 has reduced the space occupancy on electric core 1 length direction. It should be noted that, as shown in fig. 2, an included angle between two end faces of the battery protection plate 2, which are opposite to the battery core 1, is greater than 0 degree and less than 90 degrees, and as shown in fig. 3, an included angle between two end faces of the battery protection plate 2, which are opposite to the battery core 1, is greater than 90 degrees and less than 180 degrees.
Preferably, as shown in fig. 1, when the extension plane of the end face of the battery protection plate 2 in the thickness direction and the extension plane of the end face of the battery cell 1 in the thickness direction are perpendicular to each other, the battery protection plate 2 is vertically placed inside the battery, and the space occupancy rate of the battery protection plate 2 in the length direction of the battery cell 1 is the lowest.
Therefore, the available space of the battery cell 1 in the battery can be changed by adjusting the included angle between the extension plane of the end surface in the thickness direction of the battery protection plate 2 and the extension plane of the end surface in the thickness direction of the battery cell 1. The battery under the same volume, the extension face of the terminal surface on the thickness direction of battery protection board 2 intersects with the extension face of the terminal surface on the thickness direction of electric core 1, the longer the length of electric core 1 can be set, the longer the length of electric core 1 is, thus the capacity of the battery is increased.
Specifically, as shown in fig. 1, the length direction of the battery core 1 is consistent with the left-right direction, the thickness direction of the battery core 1 is consistent with the up-down direction, the electrode of the battery core 1 is located at the right end of the battery core 1, the battery protection board 2 is located at the right side of the battery core 1, and an included angle between two opposite end faces of the battery protection board 2 and the battery core 1 is 0 degree or 180 degrees, so that the space occupation of the battery protection board 2 is reduced.
In the battery assembly of the embodiment of the utility model, the extension surface of the end surface of the battery protection plate 2 in the thickness direction is intersected with the extension surface of the end surface of the battery core 1 in the thickness direction, so that the space occupancy rate of the battery protection plate 2 in the battery is reduced, the available space of the battery core 1 is increased, and the capacity of the battery is increased under the condition that the volume of the battery is not changed.
As shown in fig. 1, in some embodiments, the battery cell 1 includes a cell body 11, a top seal 12 and a tab 13, one end of the top seal 12 is connected to one end of the cell body 11, the other end of the top seal 12 is connected to one end of the tab 13, and the other end of the tab 13 is connected to the battery protection plate 2.
Specifically, the top seal 12 is located at the right end of the cell body 11, the head end of the top seal 12 is connected to the right end of the cell body 11, the tail end of the top seal 12 is connected to the head end of the tab 13, the tail end of the tab 13 is connected to the battery protection board 2, and the tail end of the tab 13 is welded to the upper portion of the battery protection board 2.
As shown in fig. 1, in some embodiments, the top seal 12 includes a first bending portion 121 and a second bending portion 122 connected to each other, the first bending portion 121 is sequentially bent along a length direction of the battery cell 1 and a thickness direction of the battery cell 1, the second bending portion 122 is sequentially bent along the length direction of the battery cell 1 and the thickness direction of the battery cell 1, and a distal end of the second bending portion 122 is located between the first bending portion 121 and the battery cell body 11.
It is understood that the head end of the first bending portion 121 is connected to the cell body 11, and the tail end of the first bending portion 121 is connected to the head end of the second bending portion 122.
Specifically, as shown in fig. 1, the cell body 11 is disposed along the left-right direction, the first bending portion 121 is located below the second bending portion 122, the first bending portion 121 includes a first section and a second section, the first section is disposed along the left-right direction, the second section is disposed along the up-down direction, a connecting portion of the first section and the second section is in an arc shape, the second bending portion 122 includes a third section and a fourth section, the third section is disposed along the left-right direction, a length of the third section is smaller than a length of the first section, the fourth section is disposed along the up-down direction, a length of the fourth section is smaller than a length of the second section, the fourth section is located on the left side of the second section, a connecting portion of the second section and the third section is in an arc shape, a connecting portion of the third section and the fourth section is in an arc shape, bending portions of the top seal 12 are all in an arc transition shape, toughness of the top seal 12 after bending is enhanced, and fracture is prevented.
Therefore, the top seal 12 is bent to prevent the aluminum layer on the outer edge of the top seal 12 from leaking, and short circuit points are prevented from being formed. The tab 13, the first bending portion 121 and the second bending portion 122 jointly form a Z-shaped structure, so that the supporting force of the head of the battery cell 1 is enhanced, and the battery cell 1 is prevented from being damaged by impact force generated in an accidental situation (for example, when the battery cell is dropped and collided).
As shown in fig. 1, in some embodiments, the tab 13 is connected to the end of the second bent portion 122.
It can be understood that the tab 13 is connected to the end of the second bending portion 122, and the portion of the tab 13 connected to the top seal 12 is located between the top seal 12 and the gap of the cell body 11, so as to protect the connection relationship between the tab 13 and the top seal 12.
As shown in fig. 1, in some embodiments, the extension plane of the end face in the thickness direction of the battery protection plate 2 and the extension plane of the end face in the thickness direction of the battery cell 1 are perpendicular to each other.
It can be understood, in this embodiment, the length direction of battery protection board 2 is unanimous with upper and lower direction, 1 level of electricity core is placed, 2 vertical placements of battery protection board, compare in other angles, the contained angle between two relative terminal surfaces that set up of battery protection board 2 and electricity core 1 is 0 degree or 180 degrees, can reduce the space occupancy of battery protection board 2 on 1 length direction of electricity core to the at utmost, it needs to explain, 2 vertical placements of battery protection board, there may be the contained angle between the terminal surface on 2 thickness direction of battery protection board and the terminal surface on 1 length direction of electricity core, the length of electricity core 1 still can receive the influence of battery protection board 2 this moment, unable maximize utilizes terminal inner space.
Further, any end face in the length direction of the battery core 1 is parallel to any end face in the thickness direction of the battery protection board 2, in other words, the battery core 1 and the battery protection board 2 are arranged vertically, so that the space occupancy rate of the battery protection board 2 in the length direction of the battery core 1 can be reduced to the maximum extent, and the available space of the length of the battery core 1 is increased to the maximum.
As shown in fig. 1, in some embodiments, the battery pack further includes a curing adhesive 3, the curing adhesive 3 is filled between the top seal 12 and the cell body 11, and the curing adhesive 3 is a low-temperature hot-melt curing adhesive or an ultraviolet curing adhesive.
Specifically, as shown in fig. 1, the curing glue 3 is filled between the first bending portion 121 and the second bending portion 122, between the first bending portion 121 and the cell body 11, and between the second bending portion 122 and the cell body 11, and the filled curing glue 3 does not need to exceed the upper end of the top seal 12, so as to prevent the curing glue from overflowing to occupy the internal space of the battery.
It can be understood that the curing adhesive 3 is filled between the top seal 12 and the cell body 11, and fills the gap between the top seal 12 and the cell body 11, so as to enhance the supporting force of the head of the cell 1, and further enhance the connecting force between the second bending portion 122 and the tab 13.
As shown in fig. 1, in some embodiments, it is characterized by further comprising a connecting member 4, wherein the connecting member 4 is disposed between the first bending part 121 and the battery protection plate 2 to connect the top seal 12 with the battery protection plate 2.
It can be understood that, connecting piece 4 will top and seal 12 and battery protection shield 2 and link to each other, improve and seal 12 and battery protection shield 2 between the dynamics of being connected, under the unexpected circumstances, connecting piece 4 is as the first physical connection between electric core 1 and the panel backplate, the effect of being connected both to electric has been played in the connection between utmost point ear 13 and the battery connection board, still as the second physical connection between electric core 1 and the panel backplate, the effect of first physical connection further protects the relation of being connected between utmost point ear 13 and the battery protection shield 2, reduce the risk of welding point disconnection between utmost point ear 13 and the battery protection shield 2.
As shown in fig. 1, in some embodiments, the connecting member 4 is a foam double-sided tape, and the two-way adhesion of the foam double-sided tape is used to adhere the peak 12 to the battery protection plate 2.
Due to the material characteristics of the foam double-sided adhesive tape, the foam double-sided adhesive tape has elasticity, can absorb a small part of impact force in the falling process, and has a small volume, so that the space occupied by the connection of the top seal 12 and the battery protection plate 2 is small.
In summary, the embodiments of the present invention have the following advantageous effects.
(1) The top seal 12 is bent towards the direction of the cell body 11, and the aluminum layer on the outer edge of the top seal 12 does not leak outwards, so that the contact with external factors is avoided, and a short circuit point is formed to influence the normal work of the battery pack.
(2) Utmost point ear 13, first portion 121 and the second portion 122 of bending top seal 12 formation Z style of calligraphy structure has increased the holding power of electric core 1 head, absorbs impact energy through the deformation at the impact in-process, avoids the impact to top seal 12, has promoted the security of battery.
(3) The battery protection board 2 is vertically placed, and the space in the length direction of the battery core 1 is saved to the greatest extent, so that the length of the battery core 1 is improved, and the battery capacity is increased.
The terminal device of the embodiment of the utility model comprises the battery assembly of any one of the embodiments.
It can be understood that the terminal equipment is powered by the battery component, so that the cruising ability of the terminal equipment is stronger, the stability of the terminal equipment is higher when an accident (such as falling and colliding) occurs, and the usability of the terminal equipment is greatly enhanced by the protection performance of the battery ingenious structure.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. The utility model provides a battery pack, its characterized in that, includes electric core and battery protection shield, electric core with the battery protection shield links to each other, an up-side end of battery protection shield thickness direction with the terminal surface of the electrode place one end of electric core sets up relatively, the extension face of the up-side end of battery protection shield thickness direction with the extension face of the up-side end of electric core thickness direction is crossing.
2. The battery assembly of claim 1, wherein the battery cell comprises a cell body, a top seal and a tab, one end of the top seal is connected to one end of the cell body, the other end of the top seal is connected to one end of the tab, and the other end of the tab is connected to the battery protection board.
3. The battery assembly of claim 2, wherein the top seal comprises a first bending portion and a second bending portion connected to each other, the first bending portion is sequentially bent along the length direction of the battery cell and the thickness direction of the battery cell, the second bending portion is sequentially bent along the length direction of the battery cell and the thickness direction of the battery cell, and the end of the second bending portion is located between the first bending portion and the cell body.
4. The battery pack of claim 3 wherein the tab is connected to the distal end of the second fold.
5. The battery assembly according to claim 1, wherein an extension plane of the end surface in the thickness direction of the battery protection plate and an extension plane of the end surface in the thickness direction of the battery cell are perpendicular to each other.
6. The battery assembly of claim 2, further comprising a curing glue filled between the top seal and the cell body.
7. The battery pack of claim 6, wherein the curing glue is a low temperature hot melt curing glue or an ultraviolet curing glue.
8. The battery pack of claim 3, further comprising a connector disposed between the first bend and the battery protection plate to connect the header seal to the battery protection plate.
9. The battery assembly of claim 8, wherein the connector is a foam double sided tape.
10. A terminal device, characterized in that it comprises a battery assembly according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122370705.0U CN216054878U (en) | 2021-09-28 | 2021-09-28 | Battery pack and terminal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122370705.0U CN216054878U (en) | 2021-09-28 | 2021-09-28 | Battery pack and terminal device |
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| Publication Number | Publication Date |
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| CN216054878U true CN216054878U (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122370705.0U Active CN216054878U (en) | 2021-09-28 | 2021-09-28 | Battery pack and terminal device |
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| CN (1) | CN216054878U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114678665A (en) * | 2022-03-18 | 2022-06-28 | 瑞浦兰钧能源股份有限公司 | Welding method and welding fixture for battery cell |
| CN115483510A (en) * | 2022-09-19 | 2022-12-16 | 维沃移动通信有限公司 | Battery structure and electronic equipment |
-
2021
- 2021-09-28 CN CN202122370705.0U patent/CN216054878U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114678665A (en) * | 2022-03-18 | 2022-06-28 | 瑞浦兰钧能源股份有限公司 | Welding method and welding fixture for battery cell |
| CN114678665B (en) * | 2022-03-18 | 2024-05-28 | 瑞浦兰钧能源股份有限公司 | Welding method and welding fixture for battery cell |
| CN115483510A (en) * | 2022-09-19 | 2022-12-16 | 维沃移动通信有限公司 | Battery structure and electronic equipment |
| WO2024061082A1 (en) * | 2022-09-19 | 2024-03-28 | 维沃移动通信有限公司 | Housing and electronic device |
| CN115483510B (en) * | 2022-09-19 | 2024-04-12 | 维沃移动通信有限公司 | Battery structure and electronic equipment |
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