CN113555624A - Mobile power supply device and heating method thereof - Google Patents
Mobile power supply device and heating method thereof Download PDFInfo
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- CN113555624A CN113555624A CN202110638140.1A CN202110638140A CN113555624A CN 113555624 A CN113555624 A CN 113555624A CN 202110638140 A CN202110638140 A CN 202110638140A CN 113555624 A CN113555624 A CN 113555624A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/623—Portable devices, e.g. mobile telephones, cameras or pacemakers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/635—Control systems based on ambient temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/637—Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/643—Cylindrical cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
- H01M10/6555—Rods or plates arranged between the cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
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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 invention discloses a mobile power supply device and a heating method thereof, wherein the mobile power supply device comprises: the heating box is characterized in that a heating film is attached to the inner surface of the heating box body, an opening is formed in the upper surface of the heating box body, a plurality of clamping grooves are formed in the bottom and the side surfaces of the heating box body, heating sheets are inserted into the clamping grooves for fixing, and electric interfaces are arranged on the surfaces, in contact with the box cover, of the heating box body and connected with a power supply module; the box cover covers the heating box body, and an inserting groove is reserved on the box cover and used for inserting the heating sheet; the heating film is attached to the heating sheet, electrodes are arranged on two sides of the upper end of the heating sheet and are connected with an electrical interface of the heating box body, and the heating sheet generates heat after power is supplied by the power supply module; the temperature sensor is arranged in the heating box body and used for detecting the temperature in the heating box body; the controller is arranged on the heating box body and used for generating a control instruction according to the temperature in the heating box body. The device simple structure is convenient for arrange, and is with low costs, and when heating trouble took place, the heating plate was pulled out to the stop heating or direct, and the security is higher.
Description
Technical Field
The invention relates to the technical field of low-temperature heating, in particular to a mobile power supply device and a heating method thereof.
Background
The existing mobile power supply is limited by poor working performance of the battery at low temperature and cannot work in a low-temperature environment, and meanwhile, the close contact of the internal battery causes that the local battery cell cannot be damaged by surrounding battery cells when the local battery cell is ignited and exploded. In addition, the conventional battery heating methods are classified into an internal heating method and an external heating method.
External heating: the external heating mainly heats the heat transfer medium (air, liquid or phase change material) by means of an external heat source, and then heats the battery by means of heat radiation, heat convection or heat conduction. The method has lower technical difficulty and cost, but needs to reserve a large amount of space in the power supply box body as a gas flow channel, thereby reducing the structural compactness; although the heating efficiency of the battery heating method based on the liquid medium is high, the auxiliary equipment is more, the structural design is complex, the cost is high, and potential safety hazards such as sealing and insulation exist at the same time. In addition, the existing heating mode cannot accurately adjust the heating power according to the actual temperature of each battery, and only can adjust the total heating power to a certain extent, so that the temperature consistency of the battery core in the system is poor when the heating is completed.
Internal heating: the internal heating method is to heat the battery by joule heat generated by passing current through a conductor having a certain resistance value, which is the battery itself. The method can be divided into a charging heating method, a discharging heating method and an alternating current excitation heating method according to the positive and negative flow directions of current; according to different power supplies for supplying current, the method can be divided into self-loss heating and external energy supply heating, but the structure of a power battery monomer needs to be greatly changed, so that the energy density of the battery is reduced to a certain extent, and higher energy consumption exists.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, an object of the present invention is to provide a mobile power supply device that solves the problem of poor operating performance of a mobile power supply in a low-temperature environment.
Another object of the present invention is to provide a heating method for a portable power source device.
To achieve the above object, an embodiment of an aspect of the present invention provides a mobile power supply apparatus, including: the heating box comprises a heating box body, a box cover, a heating sheet, a temperature sensor, a power supply module and a controller;
the power supply module is used for supplying electric energy to the mobile power supply device;
the heating box is characterized in that a heating film is attached to the inner surface of the heating box, the upper surface of the heating box is provided with an opening, a plurality of clamping grooves are formed in the bottom and the side surfaces of the heating box, the heating sheet is inserted into the clamping grooves for fixing, and electric interfaces are arranged on the surfaces, in contact with the box cover, of the heating box at the two sides of the corresponding clamping grooves and connected with the power supply module;
the heating film is a film made of a metal oxide semiconductor heating material MOSH;
the box cover covers the heating box body, and an insertion groove is reserved on the box cover and used for the heating sheet to insert;
the heating sheet is of a plug-in type, and the heating sheet is inserted or pulled out as required;
the heating piece is attached with a heating film, electrodes are arranged on two sides of the upper end of the heating piece, after the heating piece is inserted into a clamping groove of the heating box body, the electrodes are electrically connected with an electrical interface of the heating box body, and the heating piece generates heat after power is supplied by the power supply module;
the temperature sensor is arranged in the heating box body and used for detecting the temperature in the heating box body;
the controller is arranged on the heating box body, connected with the temperature sensor and the power supply module and used for generating a control instruction according to the temperature in the heating box body.
According to the mobile power supply device provided by the embodiment of the invention, the heating sheet and the box body coated with the MOSH material are applied to the mobile power supply, so that the rapid, uniform and intelligent heating and heat preservation of the mobile power supply at low temperature are realized. The heating film can heat up fast, and the temperature is even and controllable, simple structure, and the security is high, is convenient for arrange, and is with low costs, has solved the problem that the working property is poor in portable power source device low temperature environment again.
In addition, the mobile power supply device according to the above embodiment of the present invention may further have the following additional technical features:
the heating film comprises a substrate layer, a heating layer and a waterproof layer, wherein a layer of metal oxide semiconductor heating material MOSH film is plated on each of two sides of the substrate layer to form the heating layer, the waterproof layer is attached to the heating layer, a positive electrode and a negative electrode are led out of the heating layer, and heat is generated after the heating layer is electrified.
Furthermore, the temperature sensors are multiple and are arranged in a cavity separated by each heating plate or on each battery cell.
Furthermore, the power supply module is an external power supply;
an external power supply interface is arranged on the heating box body, and the external power supply supplies power through the external power supply interface.
Further, the power supply module is a solar panel;
the solar cell panel is arranged on the outer surface of the heating box body, and supplies power for the device after converting solar energy into electric energy.
Further, the heating box body is provided with an output electrical interface for outputting electric energy.
Further, the controller is further configured to adjust the energization time and the energization intensity according to the real-time temperature of each battery cell.
Further, the controller is further configured to energize only the heating film on the inner surface of the heating chamber.
In order to achieve the above object, an embodiment of another aspect of the present invention provides a heating method for a mobile power supply device, including:
collecting the temperature in the heating box body;
and when the temperature is lower than the preset temperature, generating a heating instruction according to the temperature and the preset temperature, and electrifying the heating sheet and the heating film on the heating box body according to the heating instruction.
According to the heating method of the mobile power supply device, the temperature in the heating box body is collected; when the temperature is lower than the preset temperature, a heating instruction is generated according to the temperature and the preset temperature, and the heating sheet and the heating film on the heating box body are electrified according to the heating instruction. Therefore, the problem of poor working performance in a low-temperature environment of the mobile power supply device is solved.
In addition, the heating method of the mobile power supply device according to the above embodiment of the present invention may further have the following additional technical features:
further, the heating instruction includes an energization time and an energization intensity.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a mobile power supply device according to an embodiment of the invention;
fig. 2 is an overall configuration diagram of a mobile power supply device according to an embodiment of the invention;
FIG. 3 is a schematic view of a heating film structure according to one embodiment of the present invention;
FIG. 4 is a top view of a case structure according to one embodiment of the present invention;
FIG. 5 is a schematic diagram of a plug-in heater chip according to an embodiment of the invention;
FIG. 6 is a schematic view of a cover according to one embodiment of the present invention;
fig. 7 is a flowchart of a heating method of a mobile power supply device according to an embodiment of the invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A mobile power supply device and a heating method thereof proposed according to an embodiment of the present invention are described below with reference to the accompanying drawings.
First, a mobile power supply device proposed according to an embodiment of the present invention will be described with reference to the drawings.
Fig. 1 is a schematic structural diagram of a mobile power supply device according to an embodiment of the invention.
Fig. 2 is an overall configuration diagram of a mobile power supply device according to an embodiment of the present invention.
As shown in fig. 1 and 2, the portable power supply device includes: heating box, case lid, heating plate, temperature sensor, power module and controller.
The power supply module is used for providing electric energy for the mobile power supply device.
Heating box internal surface is attached to have the heating film, be the opening above the heating box, and bottom and side are provided with a plurality of draw-in grooves, and the heating plate inserts the draw-in groove and fixes, and on the draw-in groove both sides that correspond, the surface that heating box and case lid contacted is provided with the electrical interface, and power module is connected to the electrical interface.
The heating film is a film made of a metal oxide semiconductor heating material MOSH;
the box cover covers the heating box body, and a slot is reserved on the box cover and used for the insertion of the heating sheet.
The heating plate is in a plug-in type, and the heating plate is inserted or pulled out according to the requirement;
the heating plate is attached with the heating film, and both sides of heating plate upper end are provided with the electrode, and after the heating plate inserted the draw-in groove of heating box, the electrode was connected with the electrical interface of heating box, and the heating plate produced the heat after supplying power through power module.
The temperature sensor is arranged in the heating box body and used for detecting the temperature in the heating box body.
The controller is arranged on the heating box body, is connected with the temperature sensor and the power supply module and is used for generating a control instruction according to the temperature in the heating box body.
Further, the heating film comprises a base layer, a heating layer and a waterproof layer, wherein the two sides of the base layer are respectively plated with a layer of metal oxide semiconductor heating material film to form the heating layer, the waterproof layer is attached to the heating layer, a positive electrode and a negative electrode are led out from the heating layer, and heat is generated after the heating layer is electrified.
As shown in fig. 3, the embodiment of the present invention employs a metal oxide semiconductor heating Material (MOSH), which is a key functional material. The film coated with MOSH material is applied to the inner surface of the box body and the heating sheet, and two power lines are extended, wherein the two power lines are positive and negative. When power is applied, a large amount of heat may be generated due to the characteristics of the mos heating material for rapidly and uniformly heating the battery. Meanwhile, the film also has the advantages of no pollution, light weight, low cost and the like, and the arrangement mode is simple and convenient without destroying the internal composition structure of the battery or initiating additional electrochemical reaction. The rate of temperature rise and the maximum temperature of heating during heating may be determined by the energization current and the energization time.
As a manufacturing method, the heating plate coated with the MOSH material is prepared by the following steps:
1) providing a substrate;
the present embodiment is a high temperature resistant and high strength material, but is not limited thereto, and other base materials may be used.
2) Polishing and grinding two surfaces of the base material;
3) sputtering a target material on the surface of a substrate to carry out MOSH material coating to form a heating layer, and simultaneously connecting the heating layer with two positive and negative electrodes on the top;
4) and coating an insulating waterproof layer on the upper surface of the heating layer so as to form a heating film.
As shown in fig. 4, a heating film is attached to the inner surface of the case, and the shape of the heating film is adjusted adaptively according to the structure of the case. And an electrical interface corresponding to each heating sheet is arranged at the upper end of the clamping groove of the box body. As shown in fig. 5, the heating sheet has a schematic structural view, and the heating films are attached to both sides of the heating sheet, so that more heat can be generated and the heating effect is better. The heating film is the plug-in, inserts the draw-in groove on the box when using, and the heating plate upper end has outstanding electrode, and after the heating plate inserted the draw-in groove, this electrical interface was just inserted to outstanding electrode on the heating plate, through this electrical interface connection power module to this electrode can also play the effect of fixed pin.
The concrete constitution of heating plate arranges MOSH heating material on the substrate material, and this substrate is high temperature resistant high strength material simultaneously, separates the inside electric core of power in the cavity of difference to guarantee that inside electric core breaks down, if the explosion of catching fire, can not damage the electric core in the next door cavity, and in addition, plug-in structure can be at controller trouble or heating plate trouble, when heating power is out of control, manually extracts the heating plate, avoids electric core by the superheating, takes place the dangerous condition. The number of heating fins may also be selected as desired.
As shown in fig. 6, the case cover is a structure, the case cover is provided with a heating plate and an electrode socket corresponding to the heating plate, after the case cover is closed, the heating plate is inserted into the slot, and the portable power supply device is a sealed body, so that a better heat preservation effect can be achieved.
Further, through a plurality of heating plates, the mobile power supply box is divided into a plurality of cavities, and the temperature sensor can be arranged in each cavity or on each battery cell. The controller can adjust the electrifying time and the electrifying intensity of the heating film according to the real-time temperature of each cavity or each electric core, and when a certain cavity or electric core reaches a set temperature, heating is stopped or the heating rate of the heating film is reduced.
When the temperature of all the electric cores or the cavities reaches the set temperature, the power supply to the heating sheet can be stopped, and only the heating film on the box body is supplied, so that the heat of the mobile power supply device is preserved.
Furthermore, the power supply module is an external power supply; an external power supply interface is arranged on the heating box body, and an external power supply supplies power through the external power supply interface.
Further, the power supply module is a solar panel; the solar cell panel is arranged on the outer surface of the heating box body, and the solar cell panel converts solar energy into electric energy and then supplies power to the device.
Further, an output electrical interface is arranged on the heating box body and used for outputting electric energy.
Combine the figure to show, MOSH heating film has been arranged to the box inner surface, and be provided with the heating plate draw-in groove, when the slot that the heating plate passes through the case lid inserts the box, fix through the draw-in groove, simultaneously on the draw-in groove both sides that correspond, the surface of box and case lid contact is provided with the electrical interface, the MOSH heating film required power of heating plate acquires from this electrical interface, be provided with the controller on the box, the real-time temperature of each electric core (what this example adopted is cylindrical electric core, but not be restricted to the shape of electric core) in the monitoring portable power source through temperature sensor, thereby adjust the heating power of box internal surface and heating plate, in addition, be provided with solar cell and external power supply interface on the box, the required power of heating accessible external power supply and solar energy power generation acquire, external output electric energy passes through the output electrical interface.
According to the mobile power supply device provided by the embodiment of the invention, the heating sheet and the box body coated with the MOSH material are applied to the mobile power supply, so that the rapid, uniform and intelligent heating and heat preservation of the mobile power supply at low temperature are realized. The heating film can heat up fast, and the temperature is even and controllable, simple structure, and the security is high, is convenient for arrange, and is with low costs, has solved the problem that the working property is poor in portable power source device low temperature environment again.
Next, a heating method of the portable power supply device proposed according to the embodiment of the present invention is described with reference to the drawings.
Fig. 7 illustrates a heating method of the mobile power supply device according to an embodiment of the invention.
As shown in fig. 7, the heating method of the mobile power supply includes:
and S1, collecting the temperature in the heating box body.
And S2, when the temperature is lower than the preset temperature, generating a heating instruction according to the temperature and the preset temperature, and electrifying the heating sheet and the heating film on the heating box body according to the heating instruction.
Further, the heating instruction includes an energization time and an energization intensity.
The above explanation of the method embodiment is also applicable to the apparatus of this embodiment, and is not repeated here.
According to the heating method of the mobile power supply device provided by the embodiment of the invention, the temperature in the heating box body is collected; when the temperature is lower than the preset temperature, a heating instruction is generated according to the temperature and the preset temperature, and the heating sheet and the heating film on the heating box body are electrified according to the heating instruction. Therefore, the problem of poor working performance in a low-temperature environment of the mobile power supply device is solved.
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 description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. 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. A mobile power supply device, comprising:
the heating box comprises a heating box body, a box cover, a heating sheet, a temperature sensor, a power supply module and a controller;
the power supply module is used for supplying electric energy to the mobile power supply device;
the heating box is characterized in that a heating film is attached to the inner surface of the heating box, the upper surface of the heating box is provided with an opening, a plurality of clamping grooves are formed in the bottom and the side surfaces of the heating box, the heating sheet is inserted into the clamping grooves for fixing, and electric interfaces are arranged on the surfaces, in contact with the box cover, of the heating box at the two sides of the corresponding clamping grooves and connected with the power supply module;
the heating film is a film made of a metal oxide semiconductor heating material MOSH;
the box cover covers the heating box body, and an insertion groove is reserved on the box cover and used for the heating sheet to insert;
the heating sheet is of a plug-in type, and the heating sheet is inserted or pulled out as required;
the heating piece is attached with a heating film, electrodes are arranged on two sides of the upper end of the heating piece, after the heating piece is inserted into a clamping groove of the heating box body, the electrodes are electrically connected with an electrical interface of the heating box body, and the heating piece generates heat after power is supplied by the power supply module;
the temperature sensor is arranged in the heating box body and used for detecting the temperature in the heating box body;
the controller is arranged on the heating box body, connected with the temperature sensor and the power supply module and used for generating a control instruction according to the temperature in the heating box body.
2. The device of claim 1, wherein the heating film comprises a substrate layer, a heat generating layer and a waterproof layer, wherein the heat generating layer is formed by coating a metal oxide semiconductor heating material MOSH film on each side of the substrate layer, the waterproof layer is attached to the heat generating layer, and a positive electrode and a negative electrode are led out from the heat generating layer to generate heat after being electrified.
3. The device of claim 1, wherein the plurality of temperature sensors are arranged in the chamber partitioned by each heating plate or on each battery cell.
4. The device of claim 1, wherein the power module is an external power supply;
an external power supply interface is arranged on the heating box body, and the external power supply supplies power through the external power supply interface.
5. The apparatus of claim 1, wherein the power module is a solar panel;
the solar cell panel is arranged on the outer surface of the heating box body, and supplies power for the device after converting solar energy into electric energy.
6. The device of claim 1, wherein the heating box body is provided with an output electrical interface for electrical energy output.
7. The apparatus of claim 1, wherein the controller is further configured to adjust the energization time and the energization intensity according to a real-time temperature of each cell.
8. The apparatus of claim 1, wherein the controller is further configured to energize only the heating film on the interior surface of the heating chamber.
9. A heating method for the mobile power supply device according to claims 1 to 8, comprising:
collecting the temperature in the heating box body;
and when the temperature is lower than the preset temperature, generating a heating instruction according to the temperature and the preset temperature, and electrifying the heating sheet and the heating film on the heating box body according to the heating instruction.
10. The method of claim 9, wherein the heating instructions comprise an energization time and an energization intensity.
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| CN202110638140.1A CN113555624A (en) | 2021-06-08 | 2021-06-08 | Mobile power supply device and heating method thereof |
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| CN202110638140.1A CN113555624A (en) | 2021-06-08 | 2021-06-08 | Mobile power supply device and heating method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024036544A1 (en) * | 2022-08-18 | 2024-02-22 | 宁德时代新能源科技股份有限公司 | Battery box, battery, and electrical device |
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Application publication date: 20211026 |