CN104457550A - Battery deforming detecting method and device - Google Patents
Battery deforming detecting method and device Download PDFInfo
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- CN104457550A CN104457550A CN201410708585.2A CN201410708585A CN104457550A CN 104457550 A CN104457550 A CN 104457550A CN 201410708585 A CN201410708585 A CN 201410708585A CN 104457550 A CN104457550 A CN 104457550A
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- battery
- resistance
- deformation quantity
- deformation
- threshold value
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Abstract
The invention discloses a battery deforming detecting method and device and relates to the technical field of electronic equipment application. The problem that in the prior art, potential safety hazards of electronic equipment caused by battery deforming cannot be removed by a user in time is solved. The method is used in the electronic equipment which comprises a battery with a variable resistor attached to the surface. The resistance value of the variable resistor is increased by increasing of the deforming amount of a battery. The method comprises the steps that according to preset time duration, the target resistance value of the variable resistor is obtained; whether the target resistance value is larger than a preset resistance threshold value is judged; and if yes, the fact that the deforming amount of the battery is larger than the safety deforming amount threshold value is determined. The method and device are used in the using process of the electronic equipment.
Description
Technical field
The present invention relates to electronic apparatus application technical field, particularly relate to a kind of detection method and device of battery deformation.
Background technology
At present, the electronic equipments such as existing such as mobile phone generally all use battery to power, and thus the use of quality on electronic equipment of battery has larger impact.In the use procedure of battery, often there will be cell expansion and work the phenomenon of rousing.This phenomenon is because the service time of battery is longer, or containing a kind of more serious battery deformation phenomenon that the reason such as impurity or moisture causes in the battery that causes of the production technology of existing battery.Once there is drum phenomenon (also can be described as " bulge " phenomenon) in battery, then show that the security of battery reduces greatly, if continuation use may increase the weight of battery and plays bulging phenomenon and then may damage electronic equipment, for mobile phone, when battery rise bulging phenomenon serious time, battery may back down the bonnet of mobile phone.
In prior art, it is general when the deformation phenomenon of battery is more obvious, as battery plays drum until when backing down battery cover, user just perceives battery generation deformation, and the deformation phenomenon of battery has generally occurred before user discovers, the battery risen after drum has potential safety hazard, and the mode thus due to this manual detection battery, whether deformation phenomenon occurring has hysteresis quality, and the potential safety hazard causing electronic equipment to produce because of battery deformation cannot be got rid of in time by user.
Summary of the invention
The embodiment of the present invention provides a kind of detection method and device of battery deformation, to solve the problem that electronic equipment in prior art cannot be got rid of by user in time because of potential safety hazard that battery deformation produces.
For achieving the above object, embodiments of the invention adopt following technical scheme:
On the one hand, the invention provides a kind of detection method of battery deformation, the method is applied to electronic equipment, and described electronic equipment comprises surface attachment variable-resistance battery, described variable-resistance resistance becomes large along with the increase of the deformation quantity of described battery, and the method comprises:
According to preset duration, obtain described variable-resistance target resistance values;
Judge whether described target resistance values is greater than preset resistance threshold value;
If be greater than, then determine that the deformation quantity of described battery is greater than safe deformation quantity threshold value.
On the other hand, the invention provides a kind of pick-up unit of battery deformation, this application of installation is in electronic equipment, and this electronic equipment comprises surface attachment variable-resistance battery, described variable-resistance resistance becomes large along with the increase of described battery deformation quantity, and this device comprises:
Acquiring unit, for according to preset duration, obtains described variable-resistance target resistance values;
Judging unit, for judging whether the described target resistance values that described acquiring unit obtains is greater than preset resistance threshold value;
Processing unit, during for judging that obtaining described target resistance values is greater than preset resistance threshold value when described judging unit, determines that the deformation quantity of described battery is greater than safe deformation quantity threshold value.
The detection method of battery deformation provided by the invention and device, the surface attachment of battery has variable resistor, first according to preset duration, obtain this variable-resistance target resistance values, because this variable-resistance resistance value can become large along with the increase of battery deformation quantity, thus target resistance values and preset resistance threshold value are compared, when this variable-resistance target resistance values is greater than preset resistance threshold value, then determine that the deformation quantity of described battery is greater than safe deformation quantity threshold value, with in prior art when battery deformation phenomenon is more obvious, user just perceives battery deformation, the mode of the deformation phenomenon of this manual detection battery has hysteresis quality and compares, whether the deformation quantity that the present invention can detect battery in time by the variable-resistance resistance change of battery surface exceedes safe deformation quantity threshold value, and then the potential safety hazard that electronic equipment produces because the deformation quantity of battery exceedes safe deformation quantity threshold value can be got rid of by reminding user in time.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The process flow diagram of the detection method of a kind of battery deformation that Fig. 1 provides for the embodiment of the present invention;
The structural representation of the resistive film that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the bleeder circuit that Fig. 3 provides for the embodiment of the present invention;
The process flow diagram of the detection method of another the battery deformation that Fig. 4 provides for the embodiment of the present invention;
The structural representation of the pick-up unit of a kind of battery deformation that Fig. 5 provides for the embodiment of the present invention;
The structural representation of the pick-up unit of another the battery deformation that Fig. 6 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the present embodiment, be clearly and completely described the technical scheme in the present embodiment, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In order to solve the problem that electronic equipment in prior art cannot be got rid of by user in time because of potential safety hazard that battery deformation produces, the invention provides a kind of detection method of battery deformation, the method is applied to electronic equipment, this electronic equipment comprises surface attachment variable-resistance battery, and this variable-resistance resistance becomes large along with the increase of the deformation quantity of battery.
Wherein, this electronic equipment can be mobile phone, PAD, also can for comprising other smart machines etc. of battery.
" attachment " in the present embodiment can be fixed on battery surface for variable resistor.In addition, being generally the three-dimensional shapes such as flat rectangular parallelepiped or right cylinder due to battery, there is difference in size in the surface area on its each surface; And due to the contact area of variable resistor and battery larger, the deformation quantity perception of variable resistor to battery is more obvious, thus for the ease of variable-resistance attachment and strengthen variable resistor to the perception of the deformation quantity of battery, preferably, the variable resistor in the present embodiment can be fixed on the maximum surface of the area of battery.
In the present embodiment, this variable resistor can become large any resistance for realizing resistance along with the increase of battery deformation quantity, and the present embodiment does not add restriction to its specific implementation principle and implementation procedure.Computing formula according to resistance: R=ρ L/S, the size of resistance is directly proportional to the length of material, namely material and cross-sectional area constant time, length is longer, and resistance is larger; And be inversely proportional to material cross-section is long-pending, namely material and length constant time, cross-sectional area is larger, and resistance is less.Thus, in a kind of implementation of the present embodiment, this variable-resistance principle that realizes can for causing along with battery deformation quantity the variable-resistance length being attached to this battery surface, and then cause variable-resistance resistance to become large; In other implementations of the present embodiment, this variable-resistance principle that realizes also can for causing the variable-resistance cross-sectional area being attached to its surface to diminish along with battery deformation quantity, and then cause variable-resistance resistance to become large.Preferably, this variable resistor is along with the sensitive resistance of the increase change in resistance of battery deformation quantity, when also namely battery deformation quantity is less, also can cause the variable resistor that its resistance obviously becomes large.Like this, the resolution of variable resistor to battery deformation quantity is higher.
As shown in Figure 1, the method comprises:
S101: according to preset duration, obtains described variable-resistance target resistance values.
Wherein, generally speaking, the speed of deformation of battery is comparatively slow, and thus in order to save system resource, this preset duration can be 10min, half an hour etc.
Optionally, this variable-resistance material is nickel filament.Nickel filament has higher resistivity, long service life, and surface oxidation-resistant is good, and temperature rank is high, and at high temperature has higher intensity, has good processing characteristics and weldability, can be widely used in electrical apparatus industry and do resistance material.
Further, in a kind of implementation of the present embodiment, this variable resistor is resistive film, and its concrete structure as shown in Figure 2.This resistive film comprises resistance wire 201 and film 202, and the material of resistance wire 201 is metal material, and the concrete structure of resistance wire and manufacturing process can with reference to prior aries.The material of film 202 can be the nonmetallic materials of insulation, as pottery, glass etc.; Resistance wire 201 is arranged on film 202, and film 202 is attached to battery surface.When also there is not deformation in battery, the arrangement of resistance wire 201 on film is positioned at same plane, after battery deformation, film 202 becomes curved surface from plane, the resistance wire 201 be located thereon also therefore curved elongated, computing formula according to resistance: R=ρ L/S, wherein, ρ is resistivity, relevant with the material of resistance, L is the length of resistance, and S is the cross-sectional area of resistance; As shown from the above formula, the size R of resistance is directly proportional to the length L of material, namely material and cross-sectional area S constant time, length L is longer, and material resistance R is larger; And then the resistance of this resistive film increases along with battery deformation quantity and becomes large.
S102: judge whether described target resistance values is greater than preset resistance threshold value.
Wherein, the setting of this preset resistance threshold value is relevant with the variable-resistance material, structure, resistance range etc. selected, when variable resistor is determined, by obtaining the value of this preset resistance threshold value after test of many times.
The target resistance values of acquisition and preset resistance threshold value are compared, when this target resistance values is greater than preset resistance threshold value, can think that the deformation quantity of this battery is greater than safe deformation quantity threshold value.
S103: if be greater than, then determine that the deformation quantity of described battery is greater than safe deformation quantity threshold value.
The detection method of battery deformation provided by the invention and device, the surface attachment of battery has variable resistor, first according to preset duration, obtain this variable-resistance target resistance values, because this variable-resistance resistance value can become large along with the increase of battery deformation quantity, thus target resistance values and preset resistance threshold value are compared, when this variable-resistance target resistance values is greater than preset resistance threshold value, then determine that the deformation quantity of this battery is greater than safe deformation quantity threshold value, with in prior art when battery deformation phenomenon is more obvious, user just perceives battery deformation, the mode of the deformation phenomenon of this manual detection battery has hysteresis quality and compares, whether the deformation quantity that the present invention can detect battery in time by the variable-resistance resistance change of battery surface exceedes safe deformation quantity threshold value, and then the potential safety hazard that electronic equipment produces because the deformation quantity of battery exceedes safe deformation quantity threshold value can be got rid of by reminding user in time.
Further, in order to obtain variable-resistance target resistance values, in a kind of implementation of this method, as shown in Figure 3, this variable resistor 301 is in series with insurance resistance 302, and this variable resistor 301 and insurance resistance 302 are arranged in bleeder circuit, also have source of stable pressure 303 in addition in this bleeder circuit.
And then the target resistance values of above-mentioned acquisition variable resistor 301 specifically comprises:
Obtain the magnitude of voltage of described insurance resistance 302 both sides.
The realization of this step is by the both sides shunt voltage table at insurance resistance 302, and the magnitude of voltage reading voltage table obtains.
Described magnitude of voltage according to obtaining calculates described target resistance values.
Suppose that the voltage of source of stable pressure is V
0, the voltage of insurance resistance both sides is V
1, the resistance of insurance resistance is R
1, then according to the voltage divider principle of series circuit, can obtain, variable-resistance target resistance values R
2for:
R
2＝(V
0-V
1)*R
1/V
1
Due to V
0and R
1be a fixed value, can preserve in advance, variable V
1can obtain, and then can target resistance values R be calculated by above-mentioned formula
2.
In another implementation of the present embodiment, also by first obtaining the electric current of bleeder circuit, more variable-resistance target resistance values can be obtained after calculating.
In other implementations of the present embodiment, also can directly obtain variable-resistance target resistance values.
Further, as shown in Figure 4, the present embodiment additionally provides a kind of detection method of battery deformation, and the method comprises:
S401: according to preset duration, obtains variable-resistance target resistance values.
S402: judge whether this target resistance values is greater than preset resistance threshold value.
S403: if be greater than, then determine that the deformation quantity of described battery is greater than safe deformation quantity threshold value.
The specific implementation process of step S401 to step S403 can with reference to above-mentioned steps S101 to step S103, and this method repeats no more.
In a kind of implementation of this method, after determining that the deformation quantity of battery is greater than safe deformation quantity threshold value, the method also comprises:
S404: display alarm information, this warning message is greater than safe deformation quantity threshold value for pointing out the deformation quantity of user's battery.
After determining that the deformation quantity of battery is greater than safe deformation quantity threshold value, the deformation quantity by the prompting of display alarm information on the display screen of electronic equipment user battery is greater than safe deformation quantity threshold value; Also can be greater than safe deformation quantity threshold value by the deformation quantity sending the audible alert user batteries such as vibration, to facilitate user to change battery in time, avoid the unknown losses brought owing to not recognizing the deformation quantity of battery to be greater than safe deformation quantity threshold value early.
In addition, after determining that the deformation quantity of battery is greater than safe deformation quantity threshold value, described method also comprises:
Detect described battery whether to be connected with battery charger.
If described battery is connected with described battery charger, then disconnect described connection.
After the deformation quantity of battery is greater than safe deformation quantity threshold value, the security of battery reduces greatly, charges if be thus checked through battery, should pass through to disconnect its charging connection shielding battery and charge further, to avoid danger such as setting off an explosion.
In addition, when after determining that the deformation quantity of battery is greater than safe deformation quantity threshold value, if detect further, battery is connected with battery charger, and the form reminding user also by the information of giving a warning disconnects charging connection.
As the specific implementation of method shown in above-mentioned each figure and circuit, the present embodiment additionally provides a kind of pick-up unit of battery deformation, this application of installation is in electronic equipment, this electronic equipment comprises surface attachment variable-resistance battery, this variable-resistance resistance becomes large along with the increase of described battery deformation quantity, as shown in Figure 5, this device comprises:
Acquiring unit 501, for according to preset duration, obtains described variable-resistance target resistance values.
Judging unit 502, for judging whether the described target resistance values that described acquiring unit 501 obtains is greater than preset resistance threshold value.
Processing unit 503, during for judging that obtaining described target resistance values is greater than preset resistance threshold value when described judging unit 502, determines that the deformation quantity of described battery is greater than safe deformation quantity threshold value.
Further, acquiring unit 501, time also for being in series with insurance resistance when variable resistor, obtain the magnitude of voltage of insurance resistance both sides, described variable resistor and described insurance resistance are arranged in a kind of bleeder circuit;
Described magnitude of voltage according to obtaining calculates described target resistance values.
The pick-up unit of battery deformation provided by the invention, the surface attachment of battery has variable resistor, acquiring unit is according to preset duration, obtain this variable-resistance target resistance values, because this variable-resistance resistance value can become large along with the increase of battery deformation quantity, thus target resistance values and preset resistance threshold value can compare by judging unit, when judging unit obtain this variable-resistance target resistance values be greater than the result of preset resistance threshold value time, then processing unit determines that the deformation quantity of this battery is greater than safe deformation quantity threshold value, with in prior art when battery deformation phenomenon is more obvious, user just perceives battery deformation, the mode of this manual detection deformation phenomenon has hysteresis quality and compares, whether the deformation quantity that this device can detect battery in time by the variable-resistance resistance change of battery surface exceedes safe deformation quantity threshold value, and then the potential safety hazard that electronic equipment produces because the deformation quantity of battery exceedes safe deformation quantity threshold value can be got rid of by reminding user in time.
Further, as shown in Figure 6, this device also comprises:
Display unit 601, after determining that when processing unit 503 deformation quantity of described battery is greater than described safe deformation quantity threshold value, display alarm information, described warning message is greater than described safe deformation quantity threshold value for pointing out the deformation quantity of battery described in user's battery.
Further, whether processing unit 503, also for after determining that the deformation quantity of described battery is greater than described safe deformation quantity threshold value, detect described battery and be connected with battery charger; When described battery is connected with described battery charger, disconnect described connection.
Further, above-mentioned variable resistor is resistive film.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add required common hardware by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better embodiment.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in the storage medium that can read, as the floppy disk of computing machine, hard disk or CD etc., comprise some instructions and perform method described in each embodiment of the present invention in order to make a computer equipment (can be personal computer, server, or the network equipment etc.).
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.
Claims (10)
1. the detection method of a battery deformation, it is characterized in that, described method is applied to electronic equipment, and described electronic equipment comprises surface attachment variable-resistance battery, described variable-resistance resistance becomes large along with the increase of the deformation quantity of described battery, and described method comprises:
According to preset duration, obtain described variable-resistance target resistance values;
Judge whether described target resistance values is greater than preset resistance threshold value;
If be greater than, then determine that the deformation quantity of described battery is greater than safe deformation quantity threshold value.
2. the detection method of battery deformation according to claim 1, is characterized in that, described variable resistor is in series with insurance resistance, and described variable resistor and described insurance resistance are arranged in a kind of bleeder circuit;
The described variable-resistance target resistance values of described acquisition, comprising:
Obtain the magnitude of voltage of described insurance resistance both sides;
Described magnitude of voltage according to obtaining calculates described target resistance values.
3. the detection method of battery deformation according to claim 1 and 2, is characterized in that, described determine that the deformation quantity of described battery is greater than safe deformation quantity threshold value after, described method also comprises:
Display alarm information, described warning message is greater than safe deformation quantity threshold value for pointing out the deformation quantity of battery described in user.
4. the detection method of battery deformation according to claim 1 and 2, is characterized in that, described determine that the deformation quantity of described battery is greater than safe deformation quantity threshold value after, described method also comprises:
Detect described battery whether to be connected with battery charger;
If described battery is connected with described battery charger, then disconnect described connection.
5. the detection method of battery deformation according to claim 4, is characterized in that, described variable resistor is resistive film.
6. the pick-up unit of a battery deformation, it is characterized in that, described application of installation is in electronic equipment, and described electronic equipment comprises surface attachment variable-resistance battery, described variable-resistance resistance becomes large along with the increase of described battery deformation quantity, and described device comprises:
Acquiring unit, for according to preset duration, obtains described variable-resistance target resistance values;
Judging unit, for judging whether the described target resistance values that described acquiring unit obtains is greater than preset resistance threshold value;
Processing unit, during for judging that obtaining described target resistance values is greater than preset resistance threshold value when described judging unit, determines that the deformation quantity of described battery is greater than safe deformation quantity threshold value.
7. the pick-up unit of battery deformation according to claim 6, is characterized in that,
Described acquiring unit, time also for being in series with insurance resistance when described variable resistor, obtain the magnitude of voltage of described insurance resistance both sides, described variable resistor and described insurance resistance are arranged in a kind of bleeder circuit;
Described magnitude of voltage according to obtaining calculates described target resistance values.
8. the pick-up unit of the battery deformation according to claim 6 or 7, is characterized in that, described device also comprises:
Display unit, after determining that when described processing unit the deformation quantity of described battery is greater than described safe deformation quantity threshold value, display alarm information, described warning message is greater than described safe deformation quantity threshold value for pointing out the deformation quantity of battery described in user.
9. the pick-up unit of the battery deformation according to claim 6 or 7, is characterized in that,
Whether described processing unit, also for after determining that the deformation quantity of described battery is greater than described safe deformation quantity threshold value, detect described battery and be connected with battery charger;
When described battery is connected with described battery charger, disconnect described connection.
10. the pick-up unit of battery deformation according to claim 9, is characterized in that, described variable resistor is resistive film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410708585.2A CN104457550A (en) | 2014-11-27 | 2014-11-27 | Battery deforming detecting method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410708585.2A CN104457550A (en) | 2014-11-27 | 2014-11-27 | Battery deforming detecting method and device |
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| CN201410708585.2A Pending CN104457550A (en) | 2014-11-27 | 2014-11-27 | Battery deforming detecting method and device |
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| CN104807395A (en) * | 2015-05-26 | 2015-07-29 | 广东欧珀移动通信有限公司 | Mobile terminal deformation alarm device, monitoring system and alarm method of mobile terminal deformation alarm device |
| CN105222933A (en) * | 2015-09-22 | 2016-01-06 | 上海斐讯数据通信技术有限公司 | The stress monitoring method of a kind of electronic equipment and application thereof |
| CN107068959A (en) * | 2017-02-17 | 2017-08-18 | 厦门金龙旅行车有限公司 | A kind of thermal runaway early detection system and its control method for power car electrokinetic cell |
| CN111600086A (en) * | 2019-02-20 | 2020-08-28 | 江苏师范大学 | Battery bulge detection module of LED emergency lamp |
| CN111596213A (en) * | 2019-02-20 | 2020-08-28 | 江苏师范大学 | Resistance film special for monitoring battery state |
| CN112378331A (en) * | 2020-11-09 | 2021-02-19 | 维沃移动通信有限公司 | Electronic device, battery deformation detection method, and readable storage medium |
| CN112444186A (en) * | 2019-08-29 | 2021-03-05 | 中兴通讯股份有限公司 | Battery bulge detection method and device and battery |
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