CN210467947U - Battery pack and electronic device - Google Patents
Battery pack and electronic device Download PDFInfo
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- CN210467947U CN210467947U CN201921841916.4U CN201921841916U CN210467947U CN 210467947 U CN210467947 U CN 210467947U CN 201921841916 U CN201921841916 U CN 201921841916U CN 210467947 U CN210467947 U CN 210467947U
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- thermal resistance
- resistance layer
- battery
- battery body
- heating wire
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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 embodiment of the utility model provides a battery pack and electronic equipment, the battery pack includes battery body, switching device and packaging film; the packaging film is arranged on the surface of the battery body and comprises a flexible film and a thermal resistance layer printed inside the flexible film; the switch device is electrically connected with the thermal resistance layer, and the switch device is used for switching on or switching off the power supply circuit of the thermal resistance layer. The utility model discloses battery pack includes battery body, switching device and packaging film, be provided with the thermal resistance layer in the packaging film, the packaging film sets up in battery body's surface, the thermal resistance layer covers on battery body's surface simultaneously, can be through the break-make of the switching device control circuit who is connected with the thermal resistance layer, under the condition that the circuit switches on, the thermal resistance layer can be heat energy with electric energy conversion, a heating for to battery body, the temperature that makes battery body rises to the charging temperature of settlement, thereby can use the heavy current to accomplish charging process fast.
Description
Technical Field
The utility model relates to an electronic equipment technical field especially relates to a battery pack and electronic equipment.
Background
In order to adapt to the trend of small and light electronic equipment, lithium ion batteries with high energy density are widely applied to the electronic equipment. The activity of lithium ions in a low-temperature environment is reduced, and if the same charging current as that at normal temperature is used, the cycle life of the battery is likely to be reduced.
Therefore, in general, in order to ensure the cycle life of the battery, the charging current is reduced, which, however, leads to an increase in the charging time in a low-temperature environment, which is disadvantageous for rapid charging.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present invention provides a battery assembly to solve the problem of long charging time of the existing battery assembly in a low temperature environment.
In order to achieve the above object, the present invention discloses a battery assembly including a battery body, a switching device, and a packaging film;
the packaging film is arranged on the surface of the battery body, and comprises a flexible film and a thermal resistance layer printed inside the flexible film;
the switch device is electrically connected with the thermal resistance layer, and the switch device is used for switching on or off a power supply circuit of the thermal resistance layer.
The embodiment of the utility model provides a still disclose an electronic equipment, this electronic equipment includes foretell battery pack.
According to the above technical scheme, the utility model discloses battery pack includes battery body, switching device and packaging film, be provided with the thermal resistance layer in the packaging film, the packaging film sets up in battery body's surface, the thermal resistance layer covers on battery body's surface simultaneously, can be through the break-make with the switching device control circuit who is connected with the thermal resistance layer, under the condition that the circuit switches on, the thermal resistance layer can be heat energy with electric energy conversion, a heating to battery body, the charging temperature who sets for is risen to the temperature that makes battery body, thereby can use the heavy current to accomplish charging process fast.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a battery assembly according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another battery assembly 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 and electronic equipment, electronic equipment can be smart mobile phone, computer, multimedia player, electronic reader, wearable equipment etc..
The present invention provides a battery pack and an electronic device, which are described in detail below by exemplifying specific embodiments.
Referring to fig. 1, an embodiment of the present invention provides a battery assembly including a battery body 10, a switching device 11, and a packaging film 12;
the packaging film 12 is disposed on the surface of the battery body 10, wherein the packaging film 12 includes a flexible film 121 and a heat resistance layer 122 printed inside the flexible film 121;
the switching device 11 is electrically connected to the thermal resistance layer 122, and the switching device 11 turns on or off a power supply circuit of the thermal resistance layer 122.
Specifically, as shown in fig. 1, the present invention provides a battery assembly, which includes a battery body 10, a switching device 11, and a packaging film 12. The battery body 10 is a main body of energy storage and management including a battery cell and a protection plate. The packaging film 12 is a protective film for packaging and wrapping the battery core and the protective plate, and may be an aluminum plastic film or a plastic film. When a handle structure for attaching and detaching the battery is extended from the packaging film 12, it is also called an easy-open film. In manufacturing the packaging film 12, the flexible film 121 may be used as an attachment substrate, the thermal resistance layer 122 may be printed on the flexible film 121 using a metal material or a mixture of a metal and a nonmetal to form a heating network, and the thermal resistance layer 122 may be closely attached to the flexible film 121 and may be attached to the surface of the battery body 10 as the packaging film 12 is bent. It is understood that the thermal resistance layer 122 may be completely wrapped around the surface of the battery body 10 or may cover a partial surface of the battery body 10. The thermal resistance layer 122 is electrically connected to the battery body 10, and can receive electric energy supplied from the battery body 10 or a charger port according to different circuit structures, and convert the electric energy into thermal energy through the thermal resistance sheet 12 for heating the battery body 10. The switching device 11 is electrically connected to the thermal resistance layer 122, the switching device 11 turns on or off a power supply circuit of the thermal resistance layer 122, and the switching device 11 may be a transistor, a MOS transistor, or the like. The switching device 11 can be used to switch the circuit on and off to activate or deactivate the heating function. In addition, the thermal resistance layer 122 is attached to the packaging film, can be bent along with the packaging film, does not affect the shape of the battery assembly, and avoids the volume of the battery assembly from being increased remarkably.
The utility model discloses battery pack is through using the packaging film that has the thermal resistance layer, the packaging film sets up in battery body's surface, can cover the thermal resistance layer on battery body's surface, break-make through the switching element control circuit who is connected with the thermal resistance layer, under the condition that the circuit switches on, the thermal resistance piece can be heat energy with electric energy conversion, a heating for battery body, the temperature that makes battery body rises to the charging temperature of settlement, thereby can use the heavy current to accomplish charging process fast, and can not make battery pack's volume show the increase.
Alternatively, referring to fig. 1, the thermal resistance layer 122 includes a heat generating portion 1221 and a comb-shaped electrode portion 1222, the heat generating portion 1221 is filled between comb gaps of the electrode portion 1222, and the electrode portion 1222 is electrically connected to the switching device 11.
Specifically, as shown in fig. 1, the thermal resistance layer 122 includes a heat generating portion 1221 and a comb-tooth-shaped electrode portion 1222, and the heat generating portion 1221 is a heat generating filler capable of generating heat energy when an electric current passes through the heat generating portion 1221, such as carbon paste (graphite), iron powder, or modified ceramic. The electrode 1222 is a positive and a negative metal electrode for receiving power input, and is usually a metal paste, such as a conductive silver paste, a conductive copper paste, or a conductive aluminum paste. The metal paste may be printed on the packaging film by a screen printing process to form comb-shaped electrode portions 1222 to increase the surface area of the electrode portions 1222. The electrode section 1222 has a gap between positive and negative electrodes, which may be alternately arranged. The heat generating filler of the heat generating portion 1221 may be filled between the comb gaps of the electrode portion 1222 to be in sufficient contact with the metal of the electrode portion 1222, thereby ensuring the efficiency of conversion of electric energy to heat energy.
It is understood that the heat generating portion 1221 may be printed using a carbon paste filler and the electrode portion 1222 may be printed using a conductive silver paste, in combination with the consideration of both conductivity and economy.
Alternatively, referring to fig. 2, the thermal resistance layer 122 includes a metal heating wire 1223 that is wound in a meandering manner, and the metal heating wire 1223 is electrically connected to the switching device 11.
Specifically, as shown in fig. 2, as another structure of the thermal resistance layer 122, the thermal resistance layer 122 may include a metal heating wire 1223, and the metal heating wire 1223 is electrically connected to the switching device 11. The metal heating wire 1223 is wound on the packaging film in a bending manner to increase the heat generation area of the heat resistor sheet layer 122.
Optionally, the metal heating wire 1223 is a silver paste heating wire, a copper material heating wire, or an alloy heating wire.
Specifically, the metal heating wire 1223 may be a silver paste heating wire, a copper material heating wire, or an alloy heating wire. Whichever type of heating wire is used, the metal heating wire 1223 may be printed on the packaging film by a screen printing process, so that the metal heating wire 1223 is bent along with the packaging film to cover the surface of the battery body 10.
Alternatively, the metal heating wire 1223 is bent and coiled in an S-shape, a Z-shape, or a spiral shape.
Particularly, when metal heating wire 1223 is coiled in the printing, can coil its bending into arbitrary shape in S-shaped, Z shape or the spiral, wherein, crooked number of times, the spiral number of turns is more then be favorable to increasing the heat area more, to concrete shape and crooked number of times, spiral number of turns, do not retrain in the embodiment of the utility model provides an in.
Optionally, referring to fig. 1, the battery assembly further includes a heating control circuit 13 and a temperature sensor 14;
the temperature sensor 14 is disposed inside or on the surface of the battery body 10, the temperature sensor 14 is electrically connected to an input end of the heating control circuit 13, an output end of the heating control circuit 13 is electrically connected to the switching device 11, and the heating control circuit 13 is configured to control the switching device 11 to be turned on or off.
Specifically, as shown in fig. 1, a temperature sensor 14 may be further provided inside or on the surface of the battery body 10, and the temperature sensor 14 may be a chip thermistor. The temperature of the battery body 10 is monitored by utilizing the temperature-sensitive characteristic of the temperature sensor 14, and the temperature information can be transmitted to the heating control circuit 13 connected to the temperature sensor 14. The processor in the heating control circuit 13 can compare the temperature value with a preset charging temperature, and if the temperature is lower than the preset charging temperature, the processor can trigger the switching device 11 to be turned on, so that the thermal resistance sheet 12 can work and generate heat. If the temperature is higher than the preset charging temperature, the switching device 11 may be triggered to turn off, so that the thermal resistance sheet 12 stops generating heat. The heating process of the battery pack can be automatically controlled through the cooperation of the heating control circuit 13 and the temperature sensor 14.
Optionally, the flexible film 121 is a PET film.
Specifically, in order to secure the flexibility of the packaging film and facilitate its adhesion to the surface of the battery body 10, a thin, highly flexible PET film may be used as the flexible film 121.
The embodiment of the utility model provides an electronic equipment is still provided, and this electronic equipment includes aforementioned any kind of battery pack.
Particularly, the battery assembly can be used for various electronic devices such as mobile phones, tablet computers and notebook computers, and no matter the electronic devices are not detachable or detachable, after the battery assembly is used, the size of the electronic devices cannot be increased, the electronic devices can be guaranteed to rapidly complete a charging process in a low-temperature environment, and the waiting time of users is saved.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the invention.
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 identical elements in the process, method, article, or terminal equipment comprising 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 technical solution provided by the present invention is described in detail above, and the principle and the implementation of the present invention are explained by applying specific examples, and the description of the above examples is only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, and in summary, the content of the present specification should not be understood as the limitation of the present invention.
Claims (9)
1. A battery module, characterized in that the battery module comprises a battery body, a switching device, and a packaging film;
the packaging film is arranged on the surface of the battery body, and comprises a flexible film and a thermal resistance layer printed inside the flexible film;
the switch device is electrically connected with the thermal resistance layer, and the switch device is used for switching on or off a power supply circuit of the thermal resistance layer.
2. The battery assembly of claim 1,
the thermal resistance layer comprises a heating part and a comb-tooth-shaped electrode part, the heating part is filled between comb tooth gaps of the electrode part, and the electrode part is electrically connected with the switch device.
3. The battery assembly of claim 2,
the heating part is carbon paste filler, and the electrode part is conductive silver paste.
4. The battery assembly of claim 1,
the thermal resistance layer comprises a metal heating wire which is wound in a bending way, and the metal heating wire is electrically connected with the switch device.
5. The battery assembly of claim 4,
the metal heating wire is a silver paste heating wire, a copper material heating wire or an alloy heating wire.
6. The battery assembly of claim 4,
the metal electric heating wire is bent and coiled in an S shape, a Z shape or a spiral shape.
7. The battery assembly of claim 1, further comprising a heating control circuit and a temperature sensor;
the temperature sensor is arranged in the battery body or on the surface of the battery body, the temperature sensor is electrically connected with the input end of the heating control circuit, the output end of the heating control circuit is electrically connected with the switch device, and the heating control circuit is used for controlling the switch device to be switched on or switched off.
8. The battery assembly of claim 1,
the flexible film is a PET film.
9. An electronic device comprising the battery pack according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921841916.4U CN210467947U (en) | 2019-10-29 | 2019-10-29 | Battery pack and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921841916.4U CN210467947U (en) | 2019-10-29 | 2019-10-29 | Battery pack and electronic device |
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| Publication Number | Publication Date |
|---|---|
| CN210467947U true CN210467947U (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921841916.4U Active CN210467947U (en) | 2019-10-29 | 2019-10-29 | Battery pack and electronic device |
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| CN (1) | CN210467947U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112542870A (en) * | 2020-11-28 | 2021-03-23 | Oppo广东移动通信有限公司 | Electronic device |
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2019
- 2019-10-29 CN CN201921841916.4U patent/CN210467947U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112542870A (en) * | 2020-11-28 | 2021-03-23 | Oppo广东移动通信有限公司 | Electronic device |
| CN112542870B (en) * | 2020-11-28 | 2024-02-20 | Oppo广东移动通信有限公司 | Electronic equipment |
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