CN210576194U - Battery pack and mobile terminal - Google Patents
Battery pack and mobile terminal Download PDFInfo
- Publication number
- CN210576194U CN210576194U CN201921481998.6U CN201921481998U CN210576194U CN 210576194 U CN210576194 U CN 210576194U CN 201921481998 U CN201921481998 U CN 201921481998U CN 210576194 U CN210576194 U CN 210576194U
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- folding
- battery cell
- battery
- connector
- protection plate
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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
Abstract
The utility model provides a battery component, which comprises an electric core, a protection board, a connector and a connecting circuit; a first end of the battery cell is provided with a protection plate, the protection plate is electrically connected with a lug of the battery cell, and a height difference space is formed between the protection plate and the same-direction surface of the battery cell; the connector is fixed at the second end of the battery cell, and the second end is the other end opposite to the first end; the connecting circuit comprises a connecting part and a folding part which are interconnected, the connecting part is electrically connected with the connector, the folding part is electrically connected with the protection board, and the folding part is of a folding bending elastic structure and is positioned in the height difference space. The utility model provides a pair of battery pack can play the cushioning effect, absorbs impact energy, reduces the impact, reduces connecting circuit and protection shield and tears the risk of disconnection, promotes battery pack's connection reliability and life.
Description
Technical Field
The embodiment of the utility model provides a relate to the mobile terminal field, especially relate to a battery pack and mobile terminal.
Background
At present, with the integration level of mobile terminals becoming higher and higher, non-detachable battery packs have become common designs of various mobile terminal products.
As shown in fig. 1-1, in order to save layout space in a battery module built in a conventional mobile terminal, a protection board is usually disposed in a recess at one end of a battery cell, a connector with a larger size is fixed at the other end of the battery cell, and the protection board and the connector are electrically connected through a connection circuit. As shown in fig. 1-2, a structural schematic of direct soldering between the connecting circuit and the protection board is shown.
However, such a battery assembly may be subjected to external impact when falling, twisting or pressing during transportation or after being installed in a mobile terminal, and the external force may act on the welding portion between the connection circuit and the protection board, which may easily cause the connection circuit and the protection board to be torn and disconnected, so that the battery assembly fails.
SUMMERY OF THE UTILITY MODEL
The utility model provides a battery pack and mobile terminal to the disconnection is torn easily with the protection shield to the connecting circuit who solves battery pack among the prior art, leads to the problem that battery pack became invalid.
According to a first aspect of the present invention, there is provided a battery assembly, comprising an electric core, a protection plate, a connector and a connection circuit;
the protection plate is arranged at the first end of the battery cell and is electrically connected with a lug of the battery cell, and a height difference space is formed between the protection plate and the same-direction surface of the battery cell;
the connector is fixed at a second end of the battery cell, and the second end is the other end opposite to the first end;
the connecting circuit comprises a connecting part and a folding part which are interconnected, the connecting part is electrically connected with the connector, the folding part is electrically connected with the protection plate, and the folding part is of a folding and bending structure and is positioned in the height difference space.
According to the utility model discloses a second aspect provides a mobile terminal, mobile terminal includes the utility model discloses the first aspect provides a battery pack.
Compared with the prior art, the utility model discloses at least, following advantage has:
the utility model provides a pair of battery pack, this battery pack's connecting circuit is including even connecting portion and folding portion as an organic whole, and wherein, connecting portion are connected with the connector electricity, and folding portion is connected with the protection shield electricity, and folding portion is folding crooked elastic construction. When battery pack received external force and assaulted, because the folding portion is folding crooked elastic structure, consequently, can play the cushioning effect, absorbed impact energy, reduced the impact, reduced connecting circuit and protection shield and torn the risk of disconnection, promoted battery pack's connection reliability and life.
Drawings
Fig. 1-1 is a schematic top view of a prior art battery assembly of the present invention;
fig. 1-2 are schematic end views of prior art battery assemblies of the present invention;
fig. 2 is a schematic top view of a battery assembly according to an embodiment of the present invention;
fig. 3 is a schematic end view of a battery module according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The embodiment of the utility model provides a pair of battery pack is applied to a mobile terminal, and mobile terminal can be smart mobile phone, computer, multimedia player, electronic reader, wearable equipment etc..
The present invention provides a battery pack and a mobile terminal, which are described in detail below by exemplifying specific embodiments.
Referring to fig. 2 and 3, a battery pack is characterized by including a battery cell 10, a protection plate 11, a connector 12, and a connection circuit 13;
the protection plate 11 is arranged at a first end of the battery cell 10, the protection plate 11 is electrically connected with a tab of the battery cell 10, and a height difference space 101 is formed between the protection plate 11 and the same-direction surface of the battery cell 10;
the connector 12 is fixed at a second end of the battery cell 10, where the second end is the other end opposite to the first end;
the connection circuit 13 includes a connection portion 131 and a folding portion 132, the connection portion 131 is electrically connected to the connector 12, the folding portion 132 is electrically connected to the protection plate 11, and the folding portion 132 is a folding and bending elastic structure and is located in the height difference space 101.
Specifically, as shown in fig. 2, a battery assembly provided by the embodiment of the present invention includes a battery cell 10, a protection plate 11, a connector 12, and a connection circuit 13. The battery core 10 is an energy storage unit in the battery assembly, and is generally a lithium battery core, and may be manufactured through processes of lamination, winding, sealing, welding, formation, and the like. When the battery cell 10 is manufactured, a height difference space 101 is formed at a first end of the battery cell 10, and the height difference space 101 may be designed to be a deep pit or a shallow pit structure according to the actual thickness of the battery cell. The deep and shallow pits are a relative concept and do not represent absolute depths. The protection board 11 is a circuit board where a power protection circuit of the battery pack is located, and the protection circuit 11 generally has an overcharge protection function to prevent a battery core from being damaged. The protection plate 11 and the height difference space 101 are located on the same side surface of the battery cell 10, and in order to save the layout space, the protection plate 11 may be bonded and fixed in the height difference space 101 by using the space of the height difference space 101 on the battery cell 10, and the protection plate 11 may be electrically connected to the tab of the battery cell 10. In order to prevent the protection plate 11 from being possibly invaded by external dust, the protection plate 11 may be also wound and wrapped with adhesive tape to be isolated from the external environment. The connector 12 is a plug device for plugging the battery assembly and a consumer device (such as a main board of a mobile terminal), and can supply electric energy to the consumer device. The connector 12 is generally large in size, and cannot be installed in the height difference space 101 with a small space, and the connector 12 may be adhesively fixed to a second end of the battery cell 10, which is the other end opposite to the first end.
The connection circuit 13 includes a connection portion 131 and a folding portion 132 connected together, and after the connection portion 131 and the folding portion 132 are connected together, one end of each of the connection portion 131 and the folding portion 132 is exposed as a free end, the free end of the connection portion 131 is electrically connected to the connector 12, and the free end of the folding portion 132 is electrically connected to the protection board 11. As shown in fig. 3, in order to avoid the tearing disconnection between the connection circuit 13 and the protection board 11, the folding portion 132 may be designed as a folding bending elastic structure. The folding and bending elastic structure of the folding portion 132 can ensure that when the folding portion is impacted by external force, when the impact energy is not changed, the structure is deformed through the elastic structure, the action time of the force is prolonged, and the effect of reducing the impact force is achieved. Meanwhile, the folding portion 132 is located in the height difference space 101, so that the folding portion 132 can be prevented from protruding out of the outer contour of the whole battery cell 10, and the increase of the volume of the battery assembly is avoided.
The utility model provides a pair of battery pack, this battery pack's connecting circuit is including even connecting portion and folding portion as an organic whole, and wherein, connecting portion are connected with the connector electricity, and folding portion is connected with the protection shield electricity, and folding portion is folding crooked elastic construction. When battery pack received external force and assaulted, because the folding portion is folding crooked elastic structure, consequently, can play the cushioning effect, absorbed impact energy, reduced the impact, reduced connecting circuit and protection shield and torn the risk of disconnection, promoted battery pack's connection reliability and life.
Alternatively, referring to fig. 3, the folding portion 132 includes a first connection end 1321 and a second connection end 1322, the first connection end 1321 is electrically connected to the protection plate 11, and the second connection end 1322 is integrally connected to the connection portion 131;
a portion between the first connection end 1321 and the second connection end 1322 has a folded and curved shape.
Specifically, as shown in fig. 3, the aforementioned folded portion 132 includes a first connection end 1321 and a second connection end 1322, wherein the first connection end 1321 may expose a metal layer portion of the wire for being soldered to a pad of the protection board 11 to achieve electrical connection therebetween. The second connection end 1322 may be integrally connected to the connection portion 131 by using a transfer connector, and of course, when the connection portion 131 and the folding portion 132 are completely lined, the second connection end 1322 is naturally integrally connected to the connection portion 131. Unlike the conventional battery module, the circuit structure between the first connection end 1321 and the second connection end 1322 is in a folded and bent shape to prevent the first connection end 1321 and the protection plate 11 from falling off.
Optionally, the folded and bent shape is any one of a U shape, an S shape, and a Z shape.
Specifically, in practical applications, the specific shape of the folded and bent shape may be reasonably determined according to the respective sizes and relative size relationships of the battery cell 10, the protection plate 11, and the folded portion 132, for example, when the battery cell 10 is small in size and the folded portion 132 is large in size, a U shape or a Z shape with a small number of folds may be selected; when the battery cell 10 has a larger size and the folded portion 132 has a smaller size, the S-shape with a larger number of bending times may be selected, and it can be understood that the more the number of bending times is, the longer the length of the folded portion 132 is, the larger the surface area is, and the better the heat dissipation of the folded portion 132 is.
Alternatively, referring to fig. 3, the projection of the first connection end 1321 and the second connection end 1322 along the thickness direction Z of the battery cell 10 coincide.
Specifically, as shown in fig. 3, the projection of the first connection end 1321 and the second connection end 1322 along the thickness direction Z of the battery cell 10 coincide, that is, it can be understood that the first connection end 1321 is aligned with the second connection end 1322 along the thickness direction (i.e., the vertical direction in fig. 3) of the battery cell 10, so that the space occupation caused by the offset of the first connection end 1321 and the second connection end 1322 can be avoided.
Alternatively, referring to fig. 2, the length direction of the connecting portion 131 is the length direction of the battery cell 10, and the length direction of the folding portion 132 is the width direction of the battery cell 10.
Specifically, as shown in fig. 2, in order to realize reasonable distribution of each part of the battery assembly and make full use of the space of each part as much as possible, the connector 12 and the protection plate 11 are respectively located at different positions, the length direction of the connection portion 131 is the length direction of the battery cell 10, and the connector 12 at one end of the battery cell 10 in the length direction can be communicated with each other, and the length direction of the folding portion 132 is the width direction of the battery cell 10, so that the folding portion 132 and the connection portion 131 do not interfere with each other, and the length dimension of the battery cell 10 can be prevented from.
optionally, referring to fig. 2, an extending direction M of the folding portion 132 and an extending direction N of the connecting portion 131 form a first preset included angle α.
specifically, as shown in fig. 2, the extending direction M of the folding portion 132 refers to the length direction of the folding portion 132, the extending direction N of the connecting portion 131 may refer to the connecting direction at both ends of the connecting portion 131, and may also refer to the extending direction of a straight portion in the connecting portion 131, in the embodiment of the present invention, the extending direction of a straight portion of the connecting portion 131 close to the folding portion 132 is taken as an example, a first preset included angle α is formed between the extending direction M of the folding portion 132 and the extending direction N of the connecting portion 131, and the angle may be designed according to the included angle between the extending direction M of the folding portion 132 and the moving direction of the height difference space 101, for example, the extending direction M of the folding portion 132 and the moving direction of the height difference space 101 are 90 degrees, and the first preset included angle α is 90 degrees, so that the folding portion 132 has the possibility of being hidden in the height difference space.
Optionally, the connection circuit 13 is an FPC.
Specifically, since the FPC (Flexible Printed Circuit, commonly called a Flexible board) has a light and thin characteristic and has a good bending folding property, the FPC can be used as the connection Circuit 13. And the substrate of the FPC and the internal conductive wires can also provide excellent elastic support.
Alternatively, referring to fig. 3, a folding height L1 of the folded bent elastic structure is less than a depth L2 of the height difference space 101, the depth of the height difference space 101 is a distance along the thickness direction of the battery cell 10, and the folding height L1 is a distance along the thickness direction of the battery cell 10.
Specifically, as shown in fig. 3, when the folding-bending elastic structure is located in the height difference space 101, in order to avoid the folding portion 132 from being directly struck, the folding height L1 of the folding-bending elastic structure is smaller than the depth L2 of the height difference space 101, the depth of the height difference space 101 is a distance in the thickness direction of the battery cell 10, and the folding height L1 is also a distance in the thickness direction of the battery cell 10.
The embodiment of the utility model provides a still provides a mobile terminal, mobile terminal includes aforementioned arbitrary battery pack.
In particular, in various mobile terminals such as smart phones, computers, multimedia players, electronic readers, wearable devices, etc., any of the foregoing battery packs may be used, so that the battery pack therein may operate reliably even if the mobile terminal is accidentally bumped.
The utility model provides a mobile terminal through using the battery pack after the structural improvement, when mobile terminal receives external force and assaults, can play the cushioning effect, absorbs impact energy, reduces the impact, reduces connecting circuit and protection shield and tears the risk of disconnection, promotes battery pack's connection reliability and life, and then, guarantees mobile terminal's normal work, promotes user and uses experience, reinforcing user confidence level.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A battery pack is characterized by comprising a battery core, a protection board, a connector and a connecting circuit;
the protection plate is arranged at the first end of the battery cell and is electrically connected with a lug of the battery cell, and a height difference space is formed between the protection plate and the same-direction surface of the battery cell;
the connector is fixed at a second end of the battery cell, and the second end is the other end opposite to the first end;
the connecting circuit comprises a connecting part and a folding part which are interconnected, the connecting part is electrically connected with the connector, the folding part is electrically connected with the protection plate, and the folding part is of a folding bending elastic structure and is positioned in the height difference space.
2. The battery assembly of claim 1,
the folding part comprises a first connecting end and a second connecting end, the first connecting end is electrically connected with the protection plate, and the second connecting end is connected with the connecting part into a whole;
the part between the first connecting end and the second connecting end is in a folding and bending shape.
3. The battery assembly of claim 2,
the folding bending shape is any one of a U shape, an S shape and a Z shape.
4. The battery assembly of claim 2,
and the first connecting end and the second connecting end are superposed along the projection of the thickness direction of the battery cell.
5. The battery assembly of claim 1,
the length direction of the connecting portion is the length direction of the battery cell, and the length direction of the folding portion is the width direction of the battery cell.
6. The battery assembly of claim 1,
the extending direction of the folding part and the extending direction of the connecting part form a first preset included angle.
7. The battery assembly of claim 1,
the connecting circuit is an FPC.
8. The battery assembly of claim 1,
the folding bending elastic structure comprises at least one bending transition angle, and each bending transition angle is connected with two layers of circuits arranged in a stacked mode.
9. The battery assembly of claim 1,
the folding height of the folding bending elastic structure is smaller than the depth of the height difference space, the depth of the height difference space is the distance along the thickness direction of the battery cell, and the folding height is the distance along the thickness direction of the battery cell of the folding bending elastic structure.
10. A mobile terminal characterized in that it comprises a battery assembly according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921481998.6U CN210576194U (en) | 2019-09-06 | 2019-09-06 | Battery pack and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921481998.6U CN210576194U (en) | 2019-09-06 | 2019-09-06 | Battery pack and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210576194U true CN210576194U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921481998.6U Active CN210576194U (en) | 2019-09-06 | 2019-09-06 | Battery pack and mobile terminal |
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| CN (1) | CN210576194U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113161694A (en) * | 2021-04-20 | 2021-07-23 | 维沃移动通信有限公司 | Battery connection circuit board, battery pack and electronic equipment |
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2019
- 2019-09-06 CN CN201921481998.6U patent/CN210576194U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113161694A (en) * | 2021-04-20 | 2021-07-23 | 维沃移动通信有限公司 | Battery connection circuit board, battery pack and electronic equipment |
| WO2022222819A1 (en) * | 2021-04-20 | 2022-10-27 | 维沃移动通信有限公司 | Battery connection circuit board, battery assembly and electronic device |
| CN113161694B (en) * | 2021-04-20 | 2022-12-27 | 维沃移动通信有限公司 | Battery connection circuit board, battery pack and electronic equipment |
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