CN114018148B - Electronic equipment and battery safety detection method applied to same - Google Patents
Electronic equipment and battery safety detection method applied to same Download PDFInfo
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- CN114018148B CN114018148B CN202111164405.5A CN202111164405A CN114018148B CN 114018148 B CN114018148 B CN 114018148B CN 202111164405 A CN202111164405 A CN 202111164405A CN 114018148 B CN114018148 B CN 114018148B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
- G01B7/22—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in capacitance
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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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 application discloses electronic equipment and be applied to this electronic equipment's battery safety detection method, electronic equipment includes first current conducting plate and second current conducting plate, and first current conducting plate sets up in the first assigned position of the surface of electronic equipment's battery, and the second current conducting plate sets up in the second assigned position corresponding with first assigned position, and the second current conducting plate can form the condenser with first current conducting plate, and the change of the capacitance value of condenser can show the deformation state of battery. Therefore, the deformation state of the battery of the electronic equipment can be detected based on the capacitance principle of the capacitor, the principle is simple, the detection result is reliable, and compared with the method that a special physical sensor is arranged in the electronic equipment to detect the deformation state of the battery, the method has the obvious cost advantage.
Description
Technical Field
The present application relates to the field of power electronics, and in particular, to an electronic device and a battery safety detection method applied to the electronic device.
Background
At present, the safety of the battery on the electronic device is mainly realized by the protection design of the battery body. To the deformation problem of the relatively common battery bulge among the battery safety problem, mainly adopt the mode that detects the whole size of clearance and battery between the battery module. Therefore, for the battery with smaller size, the clearance change of the battery module and the whole size change of the battery are smaller, the detection difficulty is greatly increased, the detection accuracy is lower, and the size detection on the basis is difficult to further improve the detection accuracy of the battery safety.
Disclosure of Invention
The application provides an electronic device and a battery safety detection method applied to the electronic device.
According to a first aspect of the present application, there is provided an electronic device comprising: a first conductive plate provided at a first designated position on an outer surface of a battery of the electronic device; and the second conductive plate is arranged at a second appointed position corresponding to the first appointed position, the second conductive plate and the first conductive plate can form a capacitor, and the change of the capacitance value of the capacitor can show the deformation state of the battery.
According to an embodiment of the present application, the electronic device further includes: the micro-control unit and the capacitance detection circuit; the micro control unit is connected with the capacitor through the capacitance detection circuit; the micro control unit is used for determining the capacitance value of the capacitor and determining the deformation state of the battery according to the change of the capacitance value.
According to an embodiment of the application, little the control unit still with the control module communication connection of battery is used for based on change of capacitance value with the control module of battery communicates, sends battery inquiry instruction extremely control module receives the battery inquiry result that control module fed back, and according to change of capacitance value, confirms the deformation state of battery.
According to an embodiment of the present application, the first conductive plate is disposed on one side of the outer surface of the battery close to the touch pad; the second conductive plate is a copper foil layer arranged on the touch pad; the first electrode plate and the second electrode plate are connected through an insulating medium to form a capacitor.
According to an embodiment of the present application, the micro control unit is a micro control unit of a touch panel.
According to a second aspect of the present application, there is also provided a battery safety detection method applied to the electronic device, where the method includes: a capacitance value of the receiving capacitor; determining a change in a capacitance value of the capacitor based on the capacitance value; determining the deformation state of the battery according to the change of the capacitance value; the capacitor comprises a first conductive plate and a second conductive plate, wherein the first conductive plate is arranged at a first designated position on the outer surface of a battery of the electronic equipment; and the second conductive plate is arranged at a second appointed position corresponding to the first appointed position, the second conductive plate and the first conductive plate can form a capacitor, and the change of the capacitance value of the capacitor can show the deformation state of the battery.
According to an embodiment of the application, determining the change in the capacitance value of the capacitor based on the change in the capacitance value comprises at least one of: determining a first difference value of the capacitance value and a first set value; from the capacitance value of the capacitor, the rate of change of the capacitance value is determined.
According to an embodiment of the present application, the determining the deformation state of the battery according to the change of the capacitance value includes: under the condition that the change of the capacitance value meets a first set condition, sending first notification information to a control module of the battery; receiving a passive self-test result of the control module responding to the first notification information to control the battery to carry out self-test; and under the condition that the passive self-test result shows that the internal resistance of the battery is greater than or equal to a set internal resistance threshold value, judging that the morphological state of the battery can show that the battery bulges.
According to an embodiment of the present application, determining the deformation state of the battery according to the change of the capacitance value includes: and when the change of the capacitance value meets a second set condition, determining that the form state of the battery can show the bulge of the battery.
According to an embodiment of the present application, the method further comprises: receiving battery abnormity reminding information generated by the active self-test of the battery; and responding to the battery abnormity prompting information, and determining the deformation state of the battery according to the battery abnormity prompting information and the change of the capacitance value.
The embodiment of the application discloses electronic equipment and a battery safety detection method applied to the electronic equipment, wherein the electronic equipment comprises a first conductive plate and a second conductive plate, the first conductive plate is arranged at a first appointed position on the outer surface of a battery of the electronic equipment, the second conductive plate is arranged at a second appointed position corresponding to the first appointed position, the second conductive plate and the first conductive plate can form a capacitor, and the change of the capacitance value of the capacitor can show the deformation state of the battery. Therefore, the deformation state of the battery of the electronic equipment can be detected based on the capacitance principle of the capacitor, the principle is simple, the detection result is reliable, and compared with the method that a special physical sensor is arranged in the electronic equipment to detect the deformation state of the battery, the method has the obvious cost advantage.
It is to be understood that the teachings of this application need not achieve all of the above-described benefits, but rather that specific embodiments may achieve specific technical results, and that other embodiments of this application may achieve benefits not mentioned above.
Drawings
The above and other objects, features and advantages of exemplary embodiments of the present application will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present application are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which:
in the drawings, the same or corresponding reference numerals indicate the same or corresponding parts.
Fig. 1 is a schematic diagram illustrating a capacitor formed by a first conductive plate and a second conductive plate of an electronic device according to an embodiment of the present application;
FIG. 2 shows a capacitor of an electronic device having a parasitic capacitance C according to an embodiment of the present application G Schematic comparison of principle of (1);
fig. 3 is a schematic structural diagram illustrating a first conductive plate and a second conductive plate of a capacitor of an electronic device according to an embodiment of the present application;
FIG. 4 illustrates a schematic diagram of a capacitance detection circuit of an electronic device in one implementation of the present application;
fig. 5 is a schematic diagram illustrating a communication relationship between a touch device and an operating system in an embodiment of the present application;
fig. 6 shows a schematic implementation flow diagram of a battery safety detection method according to an embodiment of the present application.
Detailed Description
The principles and spirit of the present application will be described below with reference to a number of exemplary embodiments. It should be understood that these embodiments are given merely to enable those skilled in the art to better understand and to implement the present application, and do not limit the scope of the present application in any way. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The technical solution of the present application is further elaborated below with reference to the drawings and the specific embodiments.
Fig. 1 is a schematic diagram illustrating a composition structure of a capacitor formed by a first conductive plate and a second conductive plate of an electronic device according to an embodiment of the present application.
Referring to fig. 1, an electronic device according to an embodiment of the present application includes at least: a first conductive plate 101 provided at a first designated position on an outer surface of a battery of an electronic device; and a second conductive plate 102 disposed at a second designated position corresponding to the first designated position, the second conductive plate 102 being capable of forming a capacitor with the first conductive plate, a change in capacitance value of the capacitor being capable of indicating a deformation state of the battery.
In this embodiment of the present invention, the principle of capacitance is utilized, a first conductive plate 101 is disposed on the surface of the battery, a capacitor is formed with a second conductive plate 102 at a corresponding position, and the first conductive plate and the second conductive plate are connected through an insulating medium 103 to form the capacitor. The capacitance value of the capacitor is calculated by C = epsilon r S/(4 pi kd), therefore, when the battery is deformed, the distance d between the first conductive plate and the second conductive plate disposed on the surface of the battery is changed, and the capacitance value of the capacitor is changed.
Here, the parameters of the battery may be calibrated and calibrated in advance. If the strain of the battery reaches the first setting condition, it is determined that the battery is likely to bulge, and further confirmation to the control module of the battery is necessary, and if the strain of the battery reaches the second setting condition, it may be directly determined that the battery is bulged.
In this embodiment of the present application, the first conductive plate 101 is disposed on the outer surface of the battery on the side close to the touch pad of the electronic device, the second conductive plate 102 is a copper foil layer disposed on the touch pad, and the first conductive plate and the second conductive plate are connected by the insulating medium 103 to form a capacitor. Since the case of the battery is made of an insulating material, if a conductive plate of a capacitor capable of detecting a deformed state of the battery is provided on the surface of the battery, it is necessary to fix a conductive plate outside the case of the battery as the first conductive plate 101 of the capacitor. For a conventional electronic device, since the battery core of the battery and the touch pad of the electronic device are disposed at adjacent positions, the copper foil layer on the touch pad may be used as the second conductive plate 102 of the capacitor for detecting whether the battery is deformed. The first conductive plate and the second conductive plate need to be arranged in parallel, and the first conductive plate and the second conductive plate are filled with an insulating medium 103 with stable dielectric constant and stable hardness, for example: the insulating medium 103 may be foam. The insulating medium 103 serves as an insulating filler between two conductive plates of the capacitor, and when the surface of the battery bulges and the touchpad or the back of the electronic device is extruded, the force generated by the bulge or extrusion can be transmitted to the insulating medium, so that the insulating medium is effectively deformed.
In this embodiment of the present application, it is necessary to effectively connect the reference level of the first conductive plate 101 of the battery surface and the reference level of the copper foil layer of the touch panel as the second conductive plate 102 by the shortest distance. Specifically, the copper foil layer of the touch pad and the first conductive plate 101 on the surface of the battery can form an equivalent capacitor C F The dielectric constant of the capacitor for detecting the deformation of the battery and the dielectric constant of the capacitor for detecting the pressure of the touch pad are consistent and the dielectric constants of the two capacitors are kept constant within a set error range (it is adhered to the touch pad PCB without a gap (floating) and a bubble (bubble) by a double-sided adhesive tape of an insulating property).
For the current small-sized model, the touch pad may have a Low Ground (poor grounding) effect, and the root cause of the Low Ground effect is that the reference levels of the touch pad and the electronic device are different, so that a parasitic capacitance C exists between the touch pad and the reference level of the electronic device G As shown in fig. 2 (a). Therefore, the reference level of the first conductive plate 101 on the battery surface and the reference level of the copper foil layer of the touch panel as the second conductive plate 102 are effectively connected in the shortest distance, and the reference levels can be set to the same level to eliminate the parasitic capacitance C G As shown in fig. 2 (b). Thereby effectively preventing a charge island from being formed on the first conductive plate 101 arranged on the surface of the batteryThe accuracy of capacitance value detection of the capacitor is guaranteed.
In this embodiment of the present application, the electronic device further comprises a micro control unit and a capacitance detection circuit. The micro control unit is connected with the capacitor through the capacitor detection circuit and used for determining the capacitance value of the capacitor and determining the deformation state of the battery according to the change of the capacitance value.
In this embodiment, for the deformation state of more accurate detection battery, the first current conducting plate and the second current conducting plate of condenser are not solid plane, can adopt the design of returning the shape. As shown in fig. 3 in particular, T + represents the first conductive plate; t-denotes the copper foil layer of the second conductive plate, i.e. the touch pad. The edge of the first conductive plate T + close to the second conductive plate T-is in a sawtooth shape; the second conductive plate T-is serrated near the edge of the first conductive plate. Through the first current conducting plate and the second current conducting plate that set up in pairs in this embodiment to be the cockscomb structure symmetry setting with the first current conducting plate and the second current conducting plate of condenser, like this, when the battery takes place to swell, with the position that the battery swell position corresponds, can detect the change of capacitance value fast. Therefore, the capacitance value detected finally is more accurate.
The first detection circuit in this embodiment may specifically adopt a capacitance detection circuit as shown in fig. 4.
FIG. 4 illustrates a schematic diagram of a capacitance detection circuit of an electronic device in an implementation of the present application. Referring to fig. 4, a capacitor C to be detected x Is connected to the circuit. Wherein R is 2 And R 3 The resistance value is known for the non-inductive resistor. R x Is R 4 D represents a current source, U is a power supply, C 4 Is a standard capacitance. Then C is x ＝R 3 /R 2 *C 4 . Due to R 2 And R 3 It is known, therefore, that C can be obtained by detection 4 And calculating to obtain the capacitor C to be detected x 。
In this embodiment of the application, the micro control unit is further in communication connection with a control module of the battery, and is configured to communicate with the control module of the battery based on a change in capacitance value, send a battery query instruction to the control module, receive a battery query result fed back by the control module, and determine a deformation state of the battery according to the change in capacitance value.
In this embodiment of the present application, the battery self-test refers to a health check performed by the battery after the battery is activated or reset, and the detected parameters mainly include: battery capacity, battery internal resistance, and battery maximum discharge current. If the battery bulges, the resistance of the battery is increased, and the parameter change detected by the battery self-test has various reasons. If the battery is detected to be deformed and the possibility of bulge exists, a battery inquiry command for informing the battery to carry out self-test is sent to a control module of the battery. If the self-checking result of the battery also shows that the internal resistance of the battery is increased, the battery can be judged to bulge, and potential safety hazards exist. Therefore, the safety detection of the battery can be timely and accurately realized only by adding the conductive plate on the surface of the battery, and the potential safety hazard of the battery can be timely eliminated.
In this embodiment of the present application, the micro control unit is a micro control unit of a touch pad.
Fig. 5 shows a schematic diagram of a communication relationship between a touch device and an operating system in an embodiment of the present application. As shown in fig. 5, the Touch device includes a Touch recognition module Touch, a capacitor value detection module Sensor of a battery, an analog-to-digital converter ADC, a data processing unit, and a micro control unit MCU. Touch communicates with an Analog-to-digital converter (ADC) through an interface Touch Analog I/O, a Sensor communicates with the ADC through an interface BattSensor Analog I/O, the ADC is in communication connection with a data processing unit and a micro control unit in sequence, the micro control unit communicates with an operating system of the electronic equipment through an I/O interface, and the operating system of the electronic equipment communicates with a control module of a battery.
In this way, by disposing the first conductive plate on the surface of the battery, the first conductive plate and the copper foil layer of the touch pad as the second conductive plate form a capacitor, the capacitance value of the capacitor is detected, and the capacitance value is analyzed and calculated by using the micro control unit of the touch pad to determine whether the battery is deformed, for example: and (5) battery swelling. Here, the detection mechanism for detecting the capacitor in the battery deformation state and the detection mechanism for detecting the capacitor in the touch pad pressure detection can be processed in a distinguishing manner, so that the detection result of detecting the capacitor in the battery deformation state can be fully utilized to analyze the pressure of the touch pad on the basis of ensuring the accuracy of the detection mechanism and the detection mechanism. When effectively solving the problem of mutual interference between the battery and the touch panel, the electronic equipment is effectively protected by continuously detecting the state of the battery.
Also, for an electronic device in which a touch panel and a battery are stacked together in the overall design process, for example: PC (Personal Computer). While the structural design and the element arrangement of the electronic equipment are met, the micro control unit of the touch pad and the pressure detection design principle are fully utilized, the battery safety is effectively and continuously detected, and the battery safety is effectively guaranteed. And the interference brought to the pressure detection of the touch pad after the battery deforms is eliminated, so that the electronic equipment can smoothly pass the severe heavy pressure test. The detection circuit for battery safety detection is simplified, and meanwhile, the design risk of a newly designed scheme is avoided by utilizing the mature pressure detection mechanism of the touch pad.
Fig. 6 shows a schematic implementation flow diagram of a battery safety detection method according to an embodiment of the present application. As shown in fig. 6, the battery safety detection method in this embodiment at least includes the following operation flows: an operation 601 of receiving a capacitance value of a capacitor; an operation 602 of determining a change in a capacitance value of a capacitor based on the capacitance value; in operation 603, a deformation state of the battery is determined according to the change of the capacitance value. The capacitor comprises a first conductive plate and a second conductive plate, wherein the first conductive plate is arranged at a first designated position on the outer surface of a battery of the electronic equipment; and the second conductive plate is arranged at a second appointed position corresponding to the first appointed position, the second conductive plate and the first conductive plate can form a capacitor, and the change of the capacitance value of the capacitor can show the deformation state of the battery.
In this embodiment of the present application, reference may be made to the specific embodiments of fig. 1 to 5 for specific structures of the capacitor, detection principles of the capacitor, and the like, which are not described herein again.
In operation 601, a capacitance value of a capacitor is received.
In this embodiment of the present application, the capacitance value of the capacitor may be detected using the operations shown in fig. 1-5 described above. Here, the capacitance value of the capacitor detected by the receiving capacitor detecting circuit is only required.
In operation 602, a change in a capacitance value of a capacitor is determined from the capacitance value.
In this embodiment of the present application, the determining of the change of the capacitance value of the capacitor according to the change of the capacitance value may be determining a first difference between the capacitance value and a first set value, or determining a change rate of the capacitance value according to the capacitance value of the capacitor. Other ways of determining the change in the capacitance value of the capacitor may also be devised according to the actual application scenario. This is not a particular limitation of the present application.
In operation 603, a deformation state of the battery is determined according to the change in the capacitance value.
In this embodiment of the present application, the deformation state of the battery can be determined according to the change of the capacitance value by the following steps: and under the condition that the change of the capacitance value meets a first set condition, sending first notification information to a control module of the battery, receiving a passive self-test result of the control module responding to the first notification information to control the battery to carry out self-test, and under the condition that the passive self-test result shows that the internal resistance of the battery is greater than or equal to a set internal resistance threshold value, judging that the morphological state of the battery can show that the battery bulges.
Determining the formula C = epsilon according to the capacitance value of the capacitor r S/(4 pi kd) indicates that the capacitance value C and the distance d between the two conductive plates are in an inverse relationship when other parameters such as a dielectric constant other than the capacitance value C and the distance d between the two conductive plates are not changed. Therefore, when the capacitance value is detected to be increased, it is indicated that the distance d between the two conductive plates is decreased, and the battery may be swelled. The battery parameters detected by the battery self-test may include internal resistance of the battery, which increases in the case of battery swelling.
Therefore, when the capacitance value is greater than the first set value or the first difference between the capacitance value and the first set value is greater than the first set difference threshold value, the first notification message is sent to the control module of the battery, so that the control module of the battery performs self-checking on the battery, and whether the battery bulges or not is further determined. If the internal resistance of the battery is smaller than the set internal resistance threshold, the battery is not problematic, and the electronic equipment is extruded or falls off, so that the distance d between the two conductive plates is reduced, and the capacitance value is increased. If the internal resistance of the battery is greater than or equal to the set internal resistance threshold, it can be determined that the morphological state of the battery can indicate the occurrence of the bulge of the battery.
In this embodiment of the present application, it is also determined that the form state of the battery can indicate the occurrence of the bulge of the battery when the change in the capacitance value satisfies the second setting condition.
In this embodiment of the present application, if the capacitance value is greater than the second set value or the second difference between the capacitance value and the second set value is greater than the second set difference threshold, no matter the battery is swelled or the electronic device is squeezed or falls, the battery has a safety problem and needs to stop charging and discharging the battery. At this time, second notification information for notifying that charging and discharging of the battery are stopped may be transmitted to the control module of the battery. The second set value is greater than the first set value, and the second set difference threshold is greater than the first set difference threshold.
In this embodiment of the present application, battery abnormality prompting information generated by active self-test of the battery is further received, and in response to the battery abnormality prompting information, the deformation state of the battery is determined according to the battery abnormality prompting information and the change of the capacitance value.
In this embodiment of the present application, if the battery is activated or reset, at least one of the following parameters is detected to be out of the set range: battery capacity, battery internal resistance, and maximum discharge current of the battery, etc. And judges that there is a possibility of sending a bulge from the battery based on these parameters of the battery. The battery abnormality alerting information may be transmitted to the micro control unit of the capacitor through the control module of the battery and the operating system of the electronic device. The micro control unit can comprehensively judge whether the battery bulges or not by combining the change of the capacitance value and the abnormal reminding information. For example: when the abnormal reminding information shows that the internal resistance of the battery is larger than the set resistance threshold value and the capacitance value is larger than the first set value or the first difference between the capacitance value and the first set threshold value is larger than the first set difference threshold value, it can be determined that the deformation state of the battery is the bulge of the battery.
In the electronic equipment and the battery safety detection method applied to the electronic equipment, the electronic equipment comprises the first conductive plate and the second conductive plate, the first conductive plate is arranged at a first appointed position on the outer surface of a battery of the electronic equipment, the second conductive plate is arranged at a second appointed position corresponding to the first appointed position, the second conductive plate and the first conductive plate can form a capacitor, and the change of the capacitance value of the capacitor can show the deformation state of the battery. Therefore, the deformation state of the battery of the electronic equipment can be detected based on the capacitance principle of the capacitor, the principle is simple, the detection result is reliable, and compared with the method that a special physical sensor is arranged in the electronic equipment to detect the deformation state of the battery, the method has the obvious cost advantage.
And the safety detection of the battery is realized through the micro-control unit of the touch pad, and two independent data mechanisms can be adopted to respectively process the capacitance value used for showing the touch pressure of the touch pad and the capacitance value used for showing the deformation state of the battery. The two capacitance values can be combined and analyzed, and the problem of mutual interference of battery deformation and touchpad pressure detection is solved. Meanwhile, the embodiment of the invention avoids the repeated design of a plurality of control units due to the adoption of the micro control unit of the touch pad, effectively reduces the setting of hardware resources and is beneficial to reducing power consumption and cost.
Similarly, based on the above battery safety detection method, an embodiment of the present application further provides a computer-readable storage medium, where a program is stored, and when the program is executed by a processor, the processor is caused to perform at least the following operation steps: operation 501, receiving a capacitance value of a capacitor; operation 502, determining a change in a capacitance value of a capacitor based on the capacitance value; in operation 503, a deformation state of the battery is determined according to the change of the capacitance value. The capacitor comprises a first conductive plate and a second conductive plate, wherein the first conductive plate is arranged at a first designated position on the outer surface of a battery of the electronic equipment; and the second conductive plate is arranged at a second appointed position corresponding to the first appointed position, the second conductive plate and the first conductive plate can form a capacitor, and the change of the capacitance value of the capacitor can show the deformation state of the battery.
Here, it should be noted that: the above description of the embodiment of the battery safety detection method is similar to the description of the embodiment of the electronic device shown in fig. 1 to 4, and has similar beneficial effects to the embodiment of the electronic device shown in fig. 1 to 4, and therefore, the description thereof is omitted. For technical details that are not disclosed in the embodiment of the battery safety detection method of the present application, please refer to the description of the embodiment of the electronic device shown in fig. 1 to 4 of the present application for understanding, and therefore, for brevity, will not be described again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The above-described device embodiments are merely illustrative, for example, the division of a unit is only one logical function division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units; can be located in one place or distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: various media that can store program codes, such as a removable Memory device, a Read Only Memory (ROM), a magnetic disk, or an optical disk.
Alternatively, the integrated units described above in the present application may be stored in a computer-readable storage medium if they are implemented in the form of software functional modules and sold or used as independent products. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially implemented or portions thereof that contribute to the prior art may be embodied in the form of a software product stored in a storage medium, and including several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods of the embodiments of the present application. And the aforementioned storage medium includes: a removable storage device, a ROM, a magnetic or optical disk, or other various media that can store program code.
The above description is only for the specific embodiments of the present application, but the scope of the present application 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 application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (9)
1. An electronic device, the electronic device comprising:
a first conductive plate provided at a first designated position on an outer surface of a battery of the electronic device;
a second conductive plate provided at a second designated position corresponding to the first designated position, the second conductive plate being capable of forming a capacitor with the first conductive plate, a change in capacitance value of the capacitor being capable of showing a state of deformation of the battery;
the first conductive plate is arranged on one side, close to the touch pad, of the outer surface of the battery;
the second conductive plate is a copper foil layer arranged on the touch pad;
the first conductive plate and the second conductive plate are connected through an insulating medium to form a capacitor;
the reference level of the first conductive plate and the reference level of the copper foil layer of the touch panel as the second conductive plate are connected by the shortest distance.
2. The electronic device of claim 1, further comprising: the micro-control unit and the capacitance detection circuit;
the micro control unit is connected with the capacitor through the capacitance detection circuit;
the micro control unit is used for determining the capacitance value of the capacitor and determining the deformation state of the battery according to the change of the capacitance value.
3. The electronic device of claim 2, wherein the micro control unit is further communicatively connected to a control module of the battery, and configured to communicate with the control module of the battery based on a change in the capacitance value, send a battery query instruction to the control module, receive a battery query result fed back by the control module, and determine a deformation state of the battery according to the change in the capacitance value.
4. The electronic device of any of claims 2-3,
the micro control unit is a micro control unit of the touch pad.
5. A battery safety detection method applied to the electronic device of any one of claims 1~4, the method comprising:
a capacitance value of the receiving capacitor;
determining a change in a capacitance value of the capacitor based on the capacitance value;
determining the deformation state of the battery according to the change of the capacitance value;
the capacitor comprises a first conductive plate and a second conductive plate, wherein the first conductive plate is arranged at a first designated position on the outer surface of a battery of the electronic equipment;
a second conductive plate provided at a second designated position corresponding to the first designated position, the second conductive plate being capable of forming a capacitor with the first conductive plate, a change in capacitance value of the capacitor being capable of showing a state of deformation of the battery;
the first conductive plate is arranged on one side, close to the touch pad, of the outer surface of the battery;
the second conductive plate is a copper foil layer arranged on the touch pad;
the first conductive plate and the second conductive plate are connected through an insulating medium to form a capacitor;
the reference level of the first conductive plate and the reference level of the copper foil layer of the touch panel as the second conductive plate are connected by the shortest distance.
6. The method of claim 5, determining a change in the capacitance value of the capacitor from the change in the capacitance value, comprising at least one of:
determining a first difference value of the capacitance value and a first set value;
from the capacitance value of the capacitor, the rate of change of the capacitance value is determined.
7. The method of claim 5, wherein determining the deformation state of the battery according to the change of the capacitance value comprises:
under the condition that the change of the capacitance value meets a first set condition, sending first notification information to a control module of the battery;
receiving a passive self-test result of the control module responding to the first notification information to control the battery to carry out self-test;
and under the condition that the passive self-test result shows that the internal resistance of the battery is greater than or equal to a set internal resistance threshold value, judging that the morphological state of the battery can show that the battery bulges.
8. The method of claim 5, determining the deformation state of the battery according to the change of the capacitance value, comprising:
and when the change of the capacitance value meets a second set condition, judging that the form state of the battery can show that the battery bulges.
9. The method of claim 5, further comprising:
receiving battery abnormity reminding information generated by the active self-test of the battery;
and responding to the battery abnormity prompting information, and determining the deformation state of the battery according to the battery abnormity prompting information and the change of the capacitance value.
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| JP5017189B2 (en) * | 2008-06-13 | 2012-09-05 | 富士通テレコムネットワークス株式会社 | Expansion detector |
| CN108548517A (en) * | 2018-03-29 | 2018-09-18 | 维沃移动通信有限公司 | A kind of battery deformation detecting device and method, a kind of terminal |
| CN209590240U (en) * | 2019-01-11 | 2019-11-05 | 深圳市爱克斯达电子有限公司 | A kind of electronic product |
| CN110838748B (en) * | 2019-11-29 | 2022-01-25 | 维沃移动通信有限公司 | Electronic equipment and charging control system thereof |
| CN112798662A (en) * | 2021-01-02 | 2021-05-14 | 珠海迈巨微电子有限责任公司 | Battery safety detection device and battery management system |
| CN112736306A (en) * | 2021-01-03 | 2021-04-30 | 珠海迈巨微电子有限责任公司 | Battery management chip and battery management system |
| CN112710958A (en) * | 2021-01-03 | 2021-04-27 | 珠海迈巨微电子有限责任公司 | Battery safety detection device, battery management chip and battery management system |
| CN112881482A (en) * | 2021-01-17 | 2021-06-01 | 珠海迈巨微电子有限责任公司 | Battery safety detection device and battery management system |
| CN112857199A (en) * | 2021-02-24 | 2021-05-28 | 珠海迈巨微电子有限责任公司 | Battery safety detection device and battery management system |
| CN113325322A (en) * | 2021-05-25 | 2021-08-31 | 珠海迈巨微电子有限责任公司 | Signal processing device, battery management device and battery management system |
| CN113406512A (en) * | 2021-06-03 | 2021-09-17 | 珠海迈巨微电子有限责任公司 | High-sensitivity battery safety detection device and battery management device and system |
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