A preheatable outdoor mobile power supply device and control method
By integrating a heater and temperature sensor into an outdoor mobile power device, and using a solar charging panel to preheat the lithium-ion battery, the problem of low charging and discharging efficiency of lithium-ion batteries at low temperatures is solved, thereby improving battery performance and lifespan.
Patent Information
- Application Number
- CN202310216982.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-02-27
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2043-02-27
AI Technical Summary
Lithium-ion batteries have low charging and discharging efficiency, increased internal resistance, reduced battery life, and cannot be recharged at low temperatures.
A preheatable outdoor mobile power supply device was designed, comprising a housing, a circuit board, a heater, and a rechargeable battery. The device collects ambient and internal temperatures through a temperature sensor, and uses a solar charging panel and heater to preheat the battery at low temperatures. The operating status of the heater is controlled to improve battery performance.
This technology enables battery preheating in low-temperature environments, improving battery charging and discharging efficiency and range, and extending battery life.
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Figure CN116231164B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of electricity, and in particular to a preheatable outdoor portable power supply device and its control method. Background Technology
[0002] In existing technologies, power banks typically use lithium-ion batteries. However, the use of lithium-ion batteries is limited in low-temperature environments. Besides the severe degradation of discharge capacity, they cannot be charged at low temperatures. During low-temperature charging, the intercalation of lithium ions and the lithium plating reaction on the battery's graphite electrodes occur simultaneously and compete with each other. Under low-temperature conditions, the diffusion of lithium ions in graphite is suppressed, and the conductivity of the electrolyte decreases. Simultaneously, the internal resistance of the battery increases significantly with decreasing temperature; the lower the charge capacity of the cell, the greater the internal resistance. Low temperatures also negatively impact the charge and discharge efficiency of lithium-ion batteries. During discharge, a large amount of electrical energy is consumed by heat generated from internal resistance, significantly reducing the battery's range. Summary of the Invention
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a mobile power supply device that can preheat the battery in a low-temperature environment.
[0004] The objective of this invention is achieved through the following technical solution:
[0005] Therefore, according to one aspect of the present invention, a preheatable outdoor portable power supply device is provided, comprising: a housing, and a circuit board, a heater, and a rechargeable battery disposed within the housing; the circuit board includes a data acquisition module, a preheating module, and a power supply module; the power supply module is individually connected to the preheating module, the data acquisition module, and the heater, respectively, for supplying power to the preheating module, the data acquisition module, and the heater; the power supply module is connected to the rechargeable battery for controlling the charging and discharging of the rechargeable battery; the data acquisition module is connected to an external temperature sensor and an internal temperature sensor, respectively, for acquiring the ambient temperature and the internal temperature of the device; the preheating module is individually connected to the data acquisition module and the heater, respectively, for controlling the operating state of the heater based on the acquired ambient temperature and the internal temperature of the device.
[0006] Specifically, the shell also has an insulation layer.
[0007] The above also includes solar charging panels; the solar charging panels are connected to the power module.
[0008] More specifically, the power module is also connected to a power interface, which is used to connect an external power source and / or connect external devices.
[0009] According to another aspect of the present invention, a control method is provided for the above-described preheatable outdoor portable power supply device, comprising the following steps:
[0010] Collect the ambient temperature and determine whether the ambient temperature is lower than the first temperature threshold. If so, collect the temperature inside the device.
[0011] Determine if the temperature inside the device is lower than the second temperature threshold; if so, start the heater.
[0012] Specifically, it also includes: calculating the temperature difference between the temperature inside the device and the second temperature threshold, and determining the output power of the heater based on the temperature difference.
[0013] The above also includes: calculating the output power of the solar charging panel, and when the output power of the solar charging panel is greater than the set power threshold, supplying power to the heater through the solar charging panel to start the heater.
[0014] Furthermore, it also includes: determining whether the output power of the solar charging panel is less than the output power of the heater; if so, simultaneously supplying power to the heater through the solar charging panel and the charging battery.
[0015] According to another aspect of the present invention, a computing device is provided, including a memory, a processor, and computer instructions stored in the memory and executable on the processor, wherein the processor executes the instructions to implement the steps of the control method described above.
[0016] According to another aspect of the present invention, a computer-readable storage medium is provided that stores computer instructions which, when executed by a processor, implement the steps of the control method described above.
[0017] The beneficial effects of this invention are as follows: A preheatable outdoor portable power bank device includes: a housing, and a circuit board, a heater, and a rechargeable battery disposed within the housing; the circuit board includes a data acquisition module, a preheating module, and a power supply module; the power supply module is individually connected to the preheating module, the data acquisition module, and the heater, respectively, for supplying power to the preheating module, the data acquisition module, and the heater; the power supply module is connected to the rechargeable battery for controlling the charging and discharging of the rechargeable battery; the data acquisition module is connected to an external temperature sensor and an internal temperature sensor, respectively, for acquiring the ambient temperature and the internal temperature of the device; the preheating module is individually connected to the data acquisition module and the heater, respectively, for controlling the working state of the heater based on the acquired ambient temperature and the internal temperature of the device; this invention enables the preheating function of the portable power bank device, improves the performance of the battery in low-temperature environments, and extends the battery life. Attached Figure Description
[0018] The invention can be better understood by describing exemplary embodiments disclosed herein in conjunction with the accompanying drawings, in which:
[0019] Figure 1 The diagram shown is a schematic block diagram of a preheatable outdoor portable power supply device according to Embodiment 1 of the present invention.
[0020] Figure 2 The diagram shown is a structural schematic of a preheatable outdoor portable power supply device according to Embodiment 1 of the present invention.
[0021] Figure 3 The diagram shown is a schematic flowchart of a control method according to a first embodiment of the present invention;
[0022] Figure 4 The diagram shown is a hardware structure schematic of a computing device according to Embodiment 1 of the present invention;
[0023] in, Figure 2 This includes:
[0024] 1. Housing; 2. Circuit board; 21. Power interface; 3. Rechargeable battery; 4. Heater;
[0025] 51. Internal temperature sensor; 52. External temperature sensor; 6. Solar charging panel. Detailed Implementation
[0026] The following describes specific embodiments of the present invention. It should be noted that, in order to provide a concise description, this specification cannot exhaustively describe all features of the actual embodiments. It should be understood that, in the actual implementation of any embodiment, just as in any engineering or design project, various specific decisions are often made to achieve the developer's specific goals and to meet system-related or business-related constraints, and this can change from one embodiment to another. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this invention, some design, manufacturing, or production modifications based on the technical content disclosed in this invention are merely conventional technical means and should not be construed as insufficient content of this invention.
[0027] Unless otherwise defined, the technical or scientific terms used in the claims and description shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in the patent application description and claims of this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the element or object preceding "comprising" or "including" encompasses the element or object listed following "comprising" or "including" and its equivalents, and do not exclude other elements or objects. The terms "connected" or "linked" and similar terms are not limited to physical or mechanical connections, nor are they limited to direct or indirect connections.
[0028] Example 1
[0029] This embodiment proposes a preheatable outdoor portable power supply device, such as... Figure 1 and Figure 2 As shown, it includes: a housing 1, and a circuit board 2, a heater 4 and a rechargeable battery 3 disposed within the housing 1.
[0030] The circuit board 2 includes a data acquisition module, a preheating module, and a power supply module. The power supply module is connected to the preheating module, the data acquisition module, and the heater 4 separately to supply power to the preheating module, the data acquisition module, and the heater 4. The power supply module is connected to the rechargeable battery 3 to control the charging and discharging of the rechargeable battery 3.
[0031] The data acquisition module is connected to an external temperature sensor 52 and an internal temperature sensor 51, which are used to acquire ambient temperature and internal device temperature, respectively. The preheating module is separately connected to the data acquisition module and the heater 4, and is used to control the working state of the heater 4 based on the acquired ambient temperature and internal device temperature. This enables the preheating function of the power bank device, improving battery performance in low-temperature environments and extending battery life.
[0032] Specifically, the housing 1 also has an insulation layer. A solar charging panel 6 is also provided on the outside of the housing 1; the solar charging panel 6 is connected to the power module and can supply power to the power module via solar energy.
[0033] More specifically, the power module is also connected to a power interface 21, which is used to connect an external power source and / or connect external devices.
[0034] The heater 4 is located on one or more sides of the rechargeable battery 3, and the internal temperature sensor 51 is located between the circuit board 2 and the heater 4.
[0035] According to another aspect disclosed in the present invention, such as Figure 3As shown, a control method is provided for a preheatable outdoor portable power bank device, comprising the following steps:
[0036] S0: Calculate the output power of the solar charging panel 6 and determine whether the output power of the solar charging panel 6 is greater than the set first power threshold. If so, power the acquisition module through the solar charging panel 6.
[0037] S1: The acquisition module acquires the ambient temperature through the external temperature sensor 52;
[0038] S2: Determine whether the ambient temperature is lower than the first temperature threshold. If yes, proceed to step S3; otherwise, return to step S1.
[0039] S3: The acquisition module acquires the internal temperature of the device through the internal temperature sensor 51;
[0040] S4: Determine whether the temperature inside the device is lower than the second temperature threshold. If yes, proceed to step S5; otherwise, return to step S3.
[0041] S5: Calculate the temperature difference between the temperature inside the device and the second temperature threshold, and determine the output power of the heater based on the temperature difference;
[0042] S6: Calculate the output power of the solar charging panel 6 and determine whether the output power of the solar charging panel 6 is greater than the set second power threshold. If yes, proceed to step S7. If no, use the charging battery 3 and output power to the heater 4 according to the output power determined in step S5.
[0043] S7: Determine if the output power of the solar charging panel 6 is less than the output power of the heater 4. If so, supply power to the heater 4 simultaneously through the solar charging panel 6 and the rechargeable battery 3. If not, supply power to the heater 4 simultaneously through the solar charging panel 6 and the rechargeable battery 3.
[0044] When there is sunlight, the temperature can be monitored by powering the solar charging panel 6 without consuming the power of the rechargeable battery 3; and the preheating by the solar charging panel 6 can further reduce the power consumption of the rechargeable battery 3.
[0045] This embodiment also provides a computing device, such as a smartphone, tablet computer, laptop computer, desktop computer, rack server, blade server, tower server, or cabinet server (including standalone servers or server clusters composed of multiple servers) capable of executing programs. The computing device 20 in this embodiment includes, but is not limited to, a memory 21 and a processor 22 that can communicate with each other via a system bus. Figure 3 As shown. It should be noted that, Figure 4Only a computing device 20 with components 21-22 is shown; however, it should be understood that it is not required to implement all of the components shown, and more or fewer components may be implemented instead.
[0046] In this embodiment, the memory 21 (i.e., the readable storage medium) includes flash memory, hard disk, multimedia card, card-type memory (e.g., SD or DX memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, disk, optical disk, etc. In some embodiments, the memory 21 may be an internal storage unit of the computing device 20, such as the hard disk or memory of the computing device 20. In other embodiments, the memory 21 may also be an external storage device of the computing device 20, such as a plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc., equipped on the computing device 20. Of course, the memory 21 may include both the internal storage unit and the external storage device of the computing device 20. In this embodiment, the memory 21 is typically used to store the operating system and various application software installed on the computing device 20, such as the program code of a control method in Embodiment 1. In addition, the memory 21 can also be used to temporarily store various types of data that have been output or will be output.
[0047] In some embodiments, processor 22 may be a central processing unit (CPU), controller, microcontroller, microprocessor, or other data processing chip. This processor 22 is typically used to control the overall operation of computing device 20. In this embodiment, processor 22 is used to run program code stored in memory 21 or process data, for example, to implement a control method according to embodiment one.
[0048] This embodiment also provides a computer-readable storage medium, such as flash memory, hard disk, multimedia card, card-type memory (e.g., SD or DX memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, disk, optical disk, server, app store, etc., which stores computer programs. When the program is executed by a processor, it implements corresponding functions. The computer-readable storage medium of this embodiment is used to store program code, which, when executed by a processor, implements a control method of Embodiment 1.
[0049] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.
[0050] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of the preferred embodiments of the invention includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as will be understood by those skilled in the art to which embodiments of the invention pertain.
[0051] Those skilled in the art will understand that all or part of the steps of the methods described in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable medium, and when executed, it includes one or a combination of the steps of the method embodiments.
[0052] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0053] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method.
[0054] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.
Claims
1. A pre-heatable outdoor mobile power supply device, characterized by The application relates to a heating device, comprising: a shell, and a circuit board, a heater and a charging battery arranged in the shell; the circuit board comprises a collection module, a preheating module and a power module; the power module is separately connected with the preheating module, the collection module and the heater, and is used for supplying power to the preheating module, the collection module and the heater; the power module is connected with the charging battery, and is used for controlling charging and discharging of the charging battery; the collection module is connected with an external temperature sensor and an internal temperature sensor, and is used for collecting an environment temperature and a device internal temperature respectively; the preheating module is separately connected with the collection module and the heater, and is used for controlling a working state of the heater according to the collected environment temperature and device internal temperature; that is, the environment temperature is collected, and it is judged whether the environment temperature is less than a first temperature threshold value; if yes, the device internal temperature is collected; it is judged whether the device internal temperature is less than a second temperature threshold value; if yes, the heater is started; a temperature difference between the device internal temperature and the second temperature threshold value is calculated, and the output power of the heater is determined according to the temperature difference; the output power of a solar charging panel is calculated, and when the output power of the solar charging panel is greater than a set power threshold value, the heater is supplied with power through the solar charging panel, and the heater is started; wherein the solar charging panel is connected with the power module.
2. The pre-heatable outdoor mobile power supply device according to claim 1, characterized in that The shell is further provided with a heat preservation layer.
3. The pre-heatable outdoor mobile power supply device according to claim 1, characterized in that The power module is further connected with a power interface, and the power interface is used for connecting an external power supply and / or connecting an external device.
4. A control method applied to the preheatable outdoor mobile power supply device according to any one of claims 1 to 3, characterized in that, The method comprises the following steps: collecting an environment temperature, and judging whether the environment temperature is less than a first temperature threshold value; if yes, collecting a device internal temperature; judging whether the device internal temperature is less than a second temperature threshold value; if yes, starting a heater.
5. The control method according to claim 4, characterized by The method further comprises the following steps: calculating a temperature difference between the device internal temperature and the second temperature threshold value, and determining the output power of the heater according to the temperature difference.
6. The control method according to claim 4, characterized by The method further comprises the following steps: calculating the output power of a solar charging panel, and when the output power of the solar charging panel is greater than a set power threshold value, supplying the heater with power through the solar charging panel, and starting the heater.
7. The control method according to claim 6, characterized by The method further comprises the following steps: judging whether the output power of the solar charging panel is less than the output power of the heater; if yes, simultaneously outputting power to the heater through the solar charging panel and the charging battery.
8. A computing device comprising a memory, a processor, and computer instructions stored on the memory and executable on the processor, wherein, The processor executes the instructions to realize the steps of the method in any one of claims 4 to 7.
9. A computer-readable storage medium storing computer instructions, wherein, The instructions are executed by the processor to realize the steps of the method in any one of claims 4 to 7.
Citation Information
Patent Citations
Lithium-ion power battery heating / charging device and method based on solar battery
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Electric vehicle battery heat preservation and energy storage system and method based on solar energy
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