CN114122549A - Battery bulge detection method and device and computer readable storage medium - Google Patents
Battery bulge detection method and device and computer readable storage medium Download PDFInfo
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- 238000001514 detection method Methods 0.000 title claims abstract description 139
- 230000005355 Hall effect Effects 0.000 claims abstract description 123
- 238000004891 communication Methods 0.000 claims abstract description 10
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 230000008859 change Effects 0.000 claims description 40
- 238000007600 charging Methods 0.000 claims description 22
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 238000010277 constant-current charging Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 18
- 238000013507 mapping Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 230000004044 response Effects 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 238000004590 computer program Methods 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
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- 238000007599 discharging Methods 0.000 description 2
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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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- 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
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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 battery bulge detection method, which is applied to a battery bulge detection device, wherein the battery bulge detection device comprises: a linear Hall effect unit, a magnet unit and a control unit; the magnet unit is arranged on the surface of the battery to be tested; the linear Hall effect unit is arranged opposite to the magnet unit; the control unit is in communication with the linear Hall effect unit, and the battery bulge detection method comprises the following steps: according to the magnetic field intensity of the magnet unit penetrating through the linear Hall effect unit, the linear Hall effect unit generates corresponding detection information and sends the detection information to the control unit; and the control unit acquires bulge deformation information of the battery to be detected according to the detection information and the preset reference information. The invention also discloses a device and a computer readable storage medium. The invention realizes the detection of the deformation of the battery bulge.
Description
Technical Field
The invention relates to the technical field of battery detection, in particular to a battery bulge detection method and device and a computer readable storage medium.
Background
With consumer electronics becoming more portable, it is necessary to build in lithium batteries. The lithium cell can experience many times charge-discharge cycle in the use life cycle of product, and the environment that every time circulation takes place is very different, receives this influence, and volume expansion can appear in the lithium cell and lead to the swell to warp, thereby warp to a certain extent after because battery body internal pressure is very big, thereby can take place to burst and take place the incident. In the prior art, a lithium battery product generally ensures that the battery cannot be overcharged to cause the problem of overvoltage and overcurrent through a battery protection circuit, but the battery is only equivalent to primary protection, and the battery is more seriously aged along with the longer service life of the battery, so that the problem of battery bulge deformation cannot be avoided. Therefore, a method capable of detecting the degree of bulging deformation of a battery is required.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a battery bulge detection method, and aims to solve the technical problem of battery bulge detection.
In order to achieve the above object, the present invention provides a battery bulge detection method applied to a battery bulge detection device, the battery bulge detection device comprising: a linear Hall effect unit, a magnet unit and a control unit; the magnet unit is arranged on the surface of the battery to be tested; the linear Hall effect unit is arranged opposite to the magnet unit; the control unit is in communication connection with the linear Hall effect unit, and the battery bulge detection method comprises the following steps:
the control unit acquires detection information generated by the linear Hall effect unit, wherein the linear Hall effect unit generates corresponding detection information according to the magnetic field intensity of the magnet unit penetrating through the linear Hall effect unit and sends the detection information to the control unit;
and the control unit acquires bulge deformation information of the battery to be detected according to the detection information and preset reference information.
Preferably, the linear hall effect unit is an array linear hall effect unit, the array linear hall effect unit includes a preset number of linear hall effect elements arranged in a preset array form, and the step of the control unit acquiring the detection information generated by the linear hall effect unit includes:
the control unit acquires detection information generated by the array linear Hall effect unit, wherein the array linear Hall effect unit generates array detection information corresponding to a preset number according to the magnetic field intensity of the magnet unit penetrating through the array linear Hall effect unit, and the array detection information of the preset number is used as detection information to be sent to the control unit.
Preferably, the step of obtaining the bulge deformation information of the battery to be tested by the control unit according to the detection information and the preset reference information includes:
the control unit obtains a voltage change value according to the detection voltage value and the reference voltage value;
and the control unit acquires bulge deformation information of the battery to be tested according to the voltage change value.
Preferably, the detecting voltage value includes a voltage value in a preset period, and the obtaining of the voltage variation value by the control unit according to the detecting voltage value and the reference voltage value includes:
the control unit acquires voltage values in a preset period and screens out abnormal values in the voltage values;
and taking the average value of the screened voltage values as the detection voltage value.
Preferably, the bulge deformation information includes a battery bulge grade, and the step of obtaining the bulge deformation information of the battery to be tested by the control unit according to the voltage change value includes:
the control unit obtains a preset voltage change value interval corresponding to the voltage change value according to the voltage change value;
and the control unit acquires the corresponding battery bulge grade according to the preset voltage change value interval.
Preferably, the bulge deformation information includes a battery bulge grade, and the step of obtaining the bulge deformation information of the battery to be tested by the control unit according to the detection information and the preset reference information includes:
and the control unit outputs corresponding prompt information according to the battery bulge grade.
Preferably, the step of obtaining the bulge deformation information of the battery to be tested by the control unit according to the detection information and preset reference information further includes:
and according to the bulge deformation information, reducing the charging current of the battery in the constant current charging stage and/or reducing the charging voltage when the charging is stopped, wherein the reduced charging current is in direct proportion to the bulge deformation degree, and the reduced charging voltage is in direct proportion to the bulge deformation degree.
In addition, to achieve the above object, the present invention also provides a battery bulge detecting device including: a control unit, a linear hall effect unit and a magnet unit;
the magnet unit is arranged on the surface of the battery to be tested;
the linear Hall effect unit is arranged opposite to the magnet unit; the control unit is in communication connection with the linear Hall effect unit;
and the control unit acquires the detection information generated by the linear Hall effect unit and acquires the bulge deformation information of the battery to be detected according to the detection information and preset reference information.
Preferably, the battery bulge detecting device further includes:
the linear Hall effect unit is an array linear Hall effect unit which comprises a preset number of linear Hall effect elements which are arranged in a preset array form.
Further, to achieve the above object, the present invention also provides a computer-readable storage medium having stored thereon a battery bulge detecting program that, when executed by a processor, realizes the steps of the battery bulge detecting method as recited in any one of the above.
The invention provides a battery bulge detection method, which is applied to a battery bulge detection device, and the battery bulge detection device comprises: a linear Hall effect unit, a magnet unit and a control unit; the magnet unit is arranged on the surface of the battery to be tested; the linear Hall effect unit is arranged opposite to the magnet unit; the control unit is in communication connection with the linear Hall effect unit. The control unit acquires detection information generated by the linear Hall effect unit, wherein the linear Hall effect unit generates corresponding detection information according to the magnetic field intensity of the magnet unit penetrating through the linear Hall effect unit, and sends the detection information to the control unit. The voltage value in the detection information of the linear hall effect unit is in direct proportion to the magnetic field intensity, the control unit can determine the corresponding magnetic field intensity through the obtained detection information, and further determine the distance information between the linear hall effect unit and the magnet unit according to the mapping relation between the magnetic field intensity and the distance. And the control unit acquires bulge deformation information of the battery to be detected according to the detection information and preset reference information (namely the detection information when the battery to be detected does not bulge and deform). According to the invention, the linear Hall effect unit is used for detecting the distance change between the magnet units arranged on the surface of the battery to be detected, so that the bulge deformation degree of the battery to be detected is further determined, and the detection of the bulge of the battery is realized.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural view of a battery bulge detection apparatus according to an embodiment of the present invention;
fig. 2 is another schematic structural diagram of a battery bulge detection device according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart illustrating a battery bulge detection method according to a first embodiment of the present invention;
FIG. 4 is a schematic flow chart illustrating a battery bulge detection method according to a second embodiment of the present invention;
fig. 5 is a flowchart illustrating a battery bulge detecting method according to a third embodiment of the invention.
The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings. With the above figures, there are shown specific embodiments of the present application, which will be described in more detail below. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
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, the recitation of an element by the phrase "comprising an … …" does not exclude the presence of additional like elements in the process, method, article, or apparatus that comprises the element, and further, where similarly-named elements, features, or elements in different embodiments of the disclosure may have the same meaning, or may have different meanings, that particular meaning should be determined by their interpretation in the embodiment or further by context with the embodiment.
It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope herein. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context. Also, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used in this specification, specify the presence of stated features, steps, operations, elements, components, items, species, and/or groups, but do not preclude the presence, or addition of one or more other features, steps, operations, elements, components, species, and/or groups thereof. The terms "or," "and/or," "including at least one of the following," and the like, as used herein, are to be construed as inclusive or mean any one or any combination. For example, "includes at least one of: A. b, C "means" any of the following: a; b; c; a and B; a and C; b and C; a and B and C ", again for example," A, B or C "or" A, B and/or C "means" any of the following: a; b; c; a and B; a and C; b and C; a and B and C'. An exception to this definition will occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some way.
It should be understood that, although the steps in the flowcharts in the embodiments of the present application are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least some of the steps in the figures may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, in different orders, and may be performed alternately or at least partially with respect to other steps or sub-steps of other steps.
The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
It should be noted that, step numbers such as S100 and S200 are used herein for the purpose of more clearly and briefly describing the corresponding contents, and do not constitute a substantial limitation on the sequence, and those skilled in the art may perform S200 first and then S100 in the specific implementation, but these should be within the protection scope of the present application.
It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for the convenience of description of the present application, and have no specific meaning in themselves. Thus, "module", "component" or "unit" may be used mixedly.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a battery bulge detection device according to an embodiment of the present invention.
An embodiment of the present invention provides a battery bulge detecting device, including: a control unit, a linear hall effect unit and a magnet unit;
the magnet unit is arranged on the surface of the battery to be tested;
the linear Hall effect unit is arranged opposite to the magnet unit;
the control unit is in communication connection with the linear Hall effect unit;
and the control unit acquires the detection information generated by the linear Hall effect unit and acquires the bulge deformation information of the battery to be detected according to the detection information and preset reference information.
Specifically, as shown in fig. 1, the magnet unit is disposed on the surface of the battery to be tested, and the magnet unit may have a magnetic north pole (N pole) facing upward or a magnetic south pole (S pole) facing upward. Furthermore, in order to improve the accuracy of detecting the bulge deformation degree of the battery to be detected, the magnet unit may be disposed in a preset theoretical bulge-prone region or a theoretical bulge-serious region on the surface of the battery to be detected. The linear hall effect unit is arranged opposite to the magnet unit, and the linear hall effect unit can be arranged right above or obliquely above the magnetic field range of the magnet unit, for example, the linear hall effect unit is arranged on the wall of the battery compartment structure of the battery to be tested. The control unit and the linear hall effect unit may be connected by a wire or an FPC (Flexible Printed Circuit) to implement communication between the control unit and the linear hall effect unit. The preset reference information is detection information under the condition that the battery to be detected is not bulged and deformed. As shown in fig. 2, fig. 2 is another schematic structural diagram of the battery bulge detecting apparatus according to the embodiment of the present invention, when a battery to be tested bulges, a distance between the magnet unit and the linear hall effect unit is reduced, a magnetic field intensity of a magnetic field passing through the linear hall effect unit is increased, and an output voltage of the linear hall effect unit is in direct proportion to the magnetic field intensity. Therefore, the control unit obtains the output voltage (i.e. the detection information) generated by the linear hall effect unit, and obtains the bulge deformation information of the battery to be tested according to the detection information and the preset reference information. The control unit acquires detection information generated by the linear Hall effect unit, compares the detection information with preset reference information, and then acquires a distance change value between the linear Hall effect unit and the magnet unit based on a preset voltage and distance mapping table, so that bulge deformation information of the battery to be detected is acquired.
Still further, in another embodiment, the battery bulge detecting device further includes:
the linear Hall effect unit is an array linear Hall effect unit which comprises a preset number of linear Hall effect elements which are arranged in a preset array form.
Specifically, the linear hall effect unit may be an array linear hall effect unit composed of a preset number of linear hall effect elements arranged in a preset array form. The detection information of a preset number of linear Hall effect elements can be obtained through the array linear Hall effect unit, and then according to the detection information and the preset reference information, based on a preset voltage and distance mapping table, the distance change value between the preset number of linear Hall effect elements and the magnet unit can be obtained, and then the bulge deformation information of the battery to be detected is obtained. In the embodiment, the bulge deformation information of the battery to be detected is obtained through the distance change values between the plurality of linear Hall effect elements in the array linear Hall effect unit and the magnet unit, and compared with a single linear Hall effect element, the bulge deformation information avoids the influence of accidental factors to a certain extent, and the bulge detection accuracy of the battery is improved.
Referring to fig. 2, a first embodiment of the present invention provides a battery bulge detection method, which is applied to the above battery bulge detection apparatus, wherein the control unit is in communication connection with the linear hall effect unit, and the battery bulge detection method includes:
step S100, the control unit acquires detection information generated by the linear Hall effect unit, wherein the linear Hall effect unit generates corresponding detection information according to the magnetic field intensity of the magnet unit penetrating through the linear Hall effect unit and sends the detection information to the control unit;
specifically, the control unit acquires detection information generated by the linear hall effect unit. The linear hall effect element may generate a corresponding voltage signal (i.e., sensed information) based on the magnetic field strength of the magnet element across the linear hall effect element. Wherein the closer the relative distance of the magnet unit to the linear hall effect unit, the higher the magnetic field strength; the linear hall effect element generates a corresponding voltage signal that is proportional to the magnetic field strength. And sent to the control unit through a wire or FPC.
Step S200, the control unit obtains bulge deformation information of the battery to be detected according to the detection information and preset reference information
Specifically, the preset reference information is detection information when the battery to be tested is not bulged and deformed. And the control unit acquires the detection information generated by the linear Hall effect unit and acquires the bulge deformation information of the battery to be detected according to the detection information and preset reference information. The control unit acquires detection information generated by the linear Hall effect unit, compares the detection information with preset reference information, and then acquires a distance change value between the linear Hall effect unit and the magnet unit based on a preset voltage and distance mapping table, so that bulge deformation information of the battery to be detected is acquired.
Further, the detection information includes a detection voltage value, the preset reference information includes a reference voltage value, and the step S200 includes the steps of:
step S210, the control unit obtains a voltage change value according to the detection voltage value and the reference voltage value;
step S220, the control unit obtains bulge deformation information of the battery to be tested according to the voltage change value.
Specifically, the detection information includes a detection voltage value, and the preset reference information includes a reference voltage value. And the control unit obtains a voltage change value according to the detection voltage value and the reference voltage value. Because the voltage output by the linear Hall effect unit is in direct proportion to the magnetic field intensity passing through the linear Hall effect unit, a corresponding magnetic field intensity change value can be obtained according to the voltage change value. And then according to the mapping relation between the magnetic field intensity and the distance, obtaining a distance change value between the linear Hall effect unit and the magnet unit, thereby obtaining the bulge deformation information of the battery to be tested.
Further, in another embodiment, the detecting voltage value includes a voltage value within a preset period, and the step S210 is preceded by the steps of:
step S211, the control unit acquires voltage values in a preset period and screens out abnormal values in the voltage values;
and step S212, taking the average value of the screened voltage values as the detection voltage value.
In particular, since the battery generates a certain amount of heat during both the charging process and the discharging process, the battery may interfere with the magnet unit and the linear hall-effect unit when discharging heat. Therefore, the control unit can collect the voltage values in real time, and after a preset period is reached, the voltage values in the period are screened to screen abnormal values in the voltage values, and then the average value of the screened voltage values is used as the detection voltage value, so that the accuracy of the detection voltage value is improved, and the accuracy of the battery bulge detection is further improved.
Further, in another embodiment, the bulge shape information includes a battery bulge grade, and the step S220 includes the steps of:
step S221, the control unit obtains a preset voltage change value interval corresponding to the voltage change value according to the voltage change value;
in step S222, the control unit obtains a corresponding battery bulge grade according to the preset voltage variation value interval.
Specifically, a plurality of consecutive voltage change value intervals may be preset, each voltage change value interval corresponding to one battery bulge level. The control unit obtains a preset voltage change value interval corresponding to the voltage change value according to the voltage change value, and the control unit obtains a corresponding battery bulge grade according to the preset voltage change value interval. According to the embodiment, the corresponding bulge deformation information can be quickly obtained through the mapping relation between the preset voltage change value interval and the battery bulge grade, and the convenience and the efficiency of battery bulge detection are improved.
In a first embodiment of the present invention, applied to a battery bulge detection device, the battery bulge detection device includes: a linear Hall effect unit, a magnet unit and a control unit; the magnet unit is arranged on the surface of the battery to be tested; the linear Hall effect unit is arranged opposite to the magnet unit; the control unit is in communication connection with the linear Hall effect unit. The control unit acquires detection information generated by the linear Hall effect unit, wherein the linear Hall effect unit generates corresponding detection information according to the magnetic field intensity of the magnet unit penetrating through the linear Hall effect unit, and sends the detection information to the control unit. The voltage value in the detection information of the linear hall effect unit is in direct proportion to the magnetic field intensity, the control unit can determine the corresponding magnetic field intensity through the obtained detection information, and further determine the distance information between the linear hall effect unit and the magnet unit according to the mapping relation between the magnetic field intensity and the distance. And the control unit acquires bulge deformation information of the battery to be detected according to the detection information and preset reference information (namely the detection information when the battery to be detected does not bulge and deform). In this embodiment, the linear hall effect unit detects the distance change between the magnet units disposed on the surface of the battery to be tested, and then determines the bulge deformation degree of the battery to be tested, thereby realizing the detection of the bulge of the battery.
Further, referring to fig. 3, a second embodiment of the present invention provides a battery bulge detection method, based on the embodiment shown in fig. 2, where the linear hall effect unit is an array linear hall effect unit, the array linear hall effect unit includes a preset number of single linear hall effect elements arranged in a preset array, and step S100 includes the following steps:
step S110, the control unit obtains detection information generated by the array linear hall effect units, wherein the array linear hall effect units generate array detection information corresponding to a preset number according to the magnetic field intensity of the magnet unit passing through the array linear hall effect units, and the array detection information of the preset number is sent to the control unit as detection information.
Specifically, the linear hall effect unit may be an array linear hall effect unit composed of a preset number of linear hall effect elements arranged in a preset array form. The detection information of a preset number of linear Hall effect elements can be obtained through the array linear Hall effect unit, and then according to the detection information and the preset reference information, based on a preset voltage and distance mapping table, the distance change value between the preset number of linear Hall effect elements and the magnet unit can be obtained, and then the bulge deformation information of the battery to be detected is obtained. In the embodiment, the bulge deformation information of the battery to be detected is obtained through the distance change values between the plurality of linear Hall effect elements in the array linear Hall effect unit and the magnet unit, and compared with a single linear Hall effect element, the bulge deformation information avoids the influence of accidental factors to a certain extent, and the bulge detection accuracy of the battery is improved.
Further, referring to fig. 4, a second embodiment of the present invention provides a battery bulge detection method, based on the above embodiment shown in fig. 2, where the bulge deformation information includes a battery bulge level, and after step S200, the method includes the following steps:
and step S300, the control unit outputs corresponding prompt information according to the battery bulge grade.
Specifically, the bulge shape change information includes a battery bulge grade. After the battery bulge grade is obtained, corresponding prompt information can be output to the user, wherein the prompt information is in a form including but not limited to one or more of characters, symbols, images, voice, vibration and the like. Therefore, the user can know the bulge degree of the battery in real time, and then the battery is maintained or replaced, so that serious safety accidents are avoided.
Still further, in another embodiment, the step S200 further includes the following steps:
and S310, according to the bulge deformation information, reducing the charging current in the constant current charging stage of the battery and/or reducing the charging voltage at the charge cut-off, wherein the reduced charging current is in direct proportion to the bulge deformation degree, and the reduced charging voltage is in direct proportion to the bulge deformation degree.
Specifically, according to the bulge deformation information, the charging current in the constant current charging stage of the battery is reduced and/or the charging voltage at the cut-off of charging is reduced, wherein the reduced charging current is in direct proportion to the bulge deformation degree, and the reduced charging voltage is in direct proportion to the bulge deformation degree. Charging current and/or charging voltage are/is reduced according to the different battery bulge degrees, the bulge rate of the battery can be slowed down to a certain degree, and the service life of the battery is prolonged.
In addition, the embodiment of the invention also provides a computer storage medium.
The computer storage medium has stored thereon a computer program that, when executed by a processor, implements operations in the battery bulge detection method provided by the above-described embodiments.
It is to be understood that the foregoing scenarios are only examples, and do not constitute a limitation on application scenarios of the technical solutions provided in the embodiments of the present application, and the technical solutions of the present application may also be applied to other scenarios. For example, as can be known by those skilled in the art, with the evolution of system architecture and the emergence of new service scenarios, the technical solution provided in the embodiments of the present application is also applicable to similar technical problems.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
The steps in the method of the embodiment of the application can be sequentially adjusted, combined and deleted according to actual needs.
The units in the device in the embodiment of the application can be merged, divided and deleted according to actual needs.
In the present application, the same or similar term concepts, technical solutions and/or application scenario descriptions will be generally described only in detail at the first occurrence, and when the description is repeated later, the detailed description will not be repeated in general for brevity, and when understanding the technical solutions and the like of the present application, reference may be made to the related detailed description before the description for the same or similar term concepts, technical solutions and/or application scenario descriptions and the like which are not described in detail later.
In the present application, each embodiment is described with emphasis, and reference may be made to the description of other embodiments for parts that are not described or illustrated in any embodiment.
The technical features of the technical solution of the present application may be arbitrarily combined, and for brevity of description, all possible combinations of the technical features in the embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, the scope of the present application should be considered as being described in the present application.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, a controlled terminal, or a network device) to execute the method of each embodiment of the present application.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the present application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, digital subscriber line) or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, memory Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application, or which are directly or indirectly applied to other related technical fields, are included in the scope of the present application.
Claims (10)
1. A battery bulge detection method is characterized by being applied to a battery bulge detection device, and the battery bulge detection device comprises: a linear Hall effect unit, a magnet unit and a control unit; the magnet unit is arranged on the surface of the battery to be tested; the linear Hall effect unit is arranged opposite to the magnet unit; the control unit is in communication connection with the linear Hall effect unit, and the battery bulge detection method comprises the following steps:
the control unit acquires detection information generated by the linear Hall effect unit, wherein the linear Hall effect unit generates corresponding detection information according to the magnetic field intensity of the magnet unit penetrating through the linear Hall effect unit and sends the detection information to the control unit;
and the control unit acquires bulge deformation information of the battery to be detected according to the detection information and preset reference information.
2. The battery bulge detection method of claim 1, wherein the linear hall effect unit is an array linear hall effect unit comprising a predetermined number of linear hall effect elements arranged in a predetermined array, and the step of the control unit obtaining the detection information generated by the linear hall effect unit comprises:
the control unit acquires detection information generated by the array linear Hall effect unit, wherein the array linear Hall effect unit generates array detection information corresponding to a preset number according to the magnetic field intensity of the magnet unit penetrating through the array linear Hall effect unit, and the array detection information of the preset number is used as detection information to be sent to the control unit.
3. The battery bulge detection method according to claim 1, wherein the detection information includes a detection voltage value, the preset reference information includes a reference voltage value, and the step of the control unit obtaining bulge deformation information of the battery to be tested according to the detection information and the preset reference information includes:
the control unit obtains a voltage change value according to the detection voltage value and the reference voltage value;
and the control unit acquires bulge deformation information of the battery to be tested according to the voltage change value.
4. The battery bulge detection method according to claim 3, wherein the detection voltage value includes a voltage value in a preset period, and the step of obtaining the voltage change value by the control unit based on the detection voltage value and the reference voltage value comprises:
the control unit acquires voltage values in a preset period and screens out abnormal values in the voltage values;
and taking the average value of the screened voltage values as the detection voltage value.
5. The battery bulge detection method according to claim 3, wherein the bulge deformation information includes a battery bulge grade, and the step of obtaining the bulge deformation information of the battery to be tested by the control unit according to the voltage change value includes:
the control unit obtains a preset voltage change value interval corresponding to the voltage change value according to the voltage change value;
and the control unit acquires the corresponding battery bulge grade according to the preset voltage change value interval.
6. The battery bulge detection method according to any one of claims 1 to 5, wherein the bulge deformation information includes a battery bulge level, and the step of obtaining the bulge deformation information of the battery to be detected by the control unit according to the detection information and preset reference information includes:
and the control unit outputs corresponding prompt information according to the battery bulge grade.
7. The battery bulge detection method according to claim 6, wherein the step of obtaining the bulge deformation information of the battery to be detected by the control unit according to the detection information and preset reference information further comprises:
and according to the bulge deformation information, reducing the charging current of the battery in the constant current charging stage and/or reducing the charging voltage when the charging is stopped, wherein the reduced charging current is in direct proportion to the bulge deformation degree, and the reduced charging voltage is in direct proportion to the bulge deformation degree.
8. A battery bulge detection device, characterized in that it comprises: a control unit, a linear hall effect unit and a magnet unit;
the magnet unit is arranged on the surface of the battery to be tested;
the linear Hall effect unit is arranged opposite to the magnet unit;
the control unit is in communication connection with the linear Hall effect unit;
and the control unit acquires the detection information generated by the linear Hall effect unit and acquires the bulge deformation information of the battery to be detected according to the detection information and preset reference information.
9. The battery bulge detection device according to claim 8, further comprising:
the linear Hall effect unit is an array linear Hall effect unit which comprises a preset number of linear Hall effect elements which are arranged in a preset array form.
10. A computer-readable storage medium, characterized in that a battery bulge detection program is stored thereon, which when executed by a processor, implements the steps of the battery bulge detection method according to any one of claims 1 to 7.
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