CN107843802A

CN107843802A - Internal short-circuit detection method and device

Info

Publication number: CN107843802A
Application number: CN201710993428.4A
Authority: CN
Inventors: 高锃; 陈仁杰; 罗文辉; 王宗强
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2017-10-23
Filing date: 2017-10-23
Publication date: 2018-03-27
Anticipated expiration: 2037-10-23
Also published as: CN107843802B

Abstract

This application discloses a kind of internal short-circuit detection method and device, belong to electronic technology field.Methods described includes：Obtain loss electricity of the battery in the first preset time period；Obtain consumption electricity of the external circuit of battery connection in the first preset time period；Judge to consume electricity and lose whether the ratio between electricity is less than the first default fractional threshold, the first default fractional threshold is less than 1；When consuming electricity with losing the ratio between electricity less than the first default fractional threshold, determining battery, there occurs internal short-circuit.The disclosure by determining the ratio between the consumption electricity of external circuit and loss electricity, detection battery whether internal short-circuit, realize the effective detection of internal short-circuit.The disclosure is used to detect whether battery occurs internal short-circuit.

Description

Internal short-circuit detection method and device

Technical field

This disclosure relates to electronic technology field, more particularly to a kind of internal short-circuit detection method and device.

Background technology

With the development of electronic technology, the use of battery is more and more extensive, and battery is more in the electronic equipments such as smart mobile phone It is essential.

In correlation technique, the anode pole piece of battery is closer to what cathode pole piece was set, and anode pole piece and negative pole pole Separated between piece using barrier film.In battery in use, due to colliding or the reason barrier film such as heated may rupture, cause Positive/negative plate, which contacts, causes battery that internal short-circuit occurs, and then the electric current increase for consuming inside battery.Increase over time, electricity Generated heat in the presence of the electric current increase that pond can internally consume, and then cause the expansion of battery or even explode.

After battery comes into operation, user can not determine that battery whether there occurs internal short-circuit, therefore, needs a kind of detection badly The method of battery internal short-circuit.

The content of the invention

This application provides a kind of internal short-circuit detection method and device, can detect whether battery occurs internal short-circuit.It is described Technical scheme is as follows：

According to the first aspect of the disclosure, there is provided a kind of internal short-circuit detection method, methods described include：

Obtain loss electricity of the battery in the first preset time period；

Obtain consumption electricity of the external circuit of the battery connection in first preset time period；

Judge that the consumption electricity loses whether the ratio between electricity is less than the first default fractional threshold with described, described first is pre- If fractional threshold is less than 1；

When the ratio between the consumption electricity and described loss electricity are less than the described first default fractional threshold, the electricity is determined There occurs internal short-circuit in pond.

Optionally, it is described when the consumption electricity and described the ratio between the electricity that loses are less than the described first default fractional threshold When, the battery is determined there occurs internal short-circuit, including：

The actual internal resistance at least one moment that obtains the battery in first preset time period；

The average value of the actual internal resistance at least one moment is defined as average internal resistance；

Obtain the specified internal resistance of the battery；

Judge whether average the ratio between the internal resistance and the specified internal resistance are less than the second default fractional threshold, described second is pre- If fractional threshold is less than 1；

Fractional threshold is preset when the ratio between the consumption electricity and described loss electricity are less than described first, and it is described average interior When the ratio between resistance and the specified internal resistance are less than the described second default fractional threshold, determine that there occurs internal short-circuit for the battery.

Optionally, the loss electricity for obtaining battery in the first preset time period, including：

Obtain the open-circuit voltage OCV curves of the default battery；

When detecting that the external circuit meets the first preparatory condition, the between the positive pole and negative pole of the battery is obtained One voltage, first preparatory condition are：The power consumption stream of the external circuit is in the first preset duration continuously less than predetermined current Threshold value, the predetermined current threshold are x, 0 milliampere of ＜ x≤300 milliampere；

The first electricity according to corresponding to the OCV curves determine the first voltage；

When detecting that the external circuit meets the second preparatory condition, the between the positive pole and negative pole of the battery is obtained Two voltages, second preparatory condition are：In the second preset duration after the external circuit meets first preparatory condition, The power consumption stream of the external circuit is continuously less than the predetermined current threshold；

When the second voltage is less than the first voltage, determine that the second voltage is corresponding according to the OCV curves The second electricity；

The difference of first electricity and second electricity is defined as the loss electricity.

Optionally, the external circuit is connected with Coulomb meter, and the external circuit for obtaining the battery connection is described first Consumption electricity in preset time period, including：

The consumption electricity is obtained by the Coulomb meter.

Optionally, methods described also includes：

When it is determined that internal short-circuit occurs for the battery, the electronic equipment is controlled to show in for indicating that the battery occurs The prompt message of short circuit.

Optionally, methods described also includes：

It is determined that after battery generation internal short-circuit, judge that the consumption electricity loses whether the ratio between electricity is less than with described 3rd default fractional threshold, wherein, the described 3rd default fractional threshold is less than the described first default fractional threshold；

When the ratio between the consumption electricity and described loss electricity are less than the described 3rd default fractional threshold, the electricity is controlled Sub- equipment shows the warning information damaged for indicating the battery.

Optionally, methods described also includes：

After it is determined that the battery damaged, judge whether the ratio between the consumption electricity and described loss electricity are less than the 4th Default fractional threshold, wherein, the described 4th default fractional threshold is less than the described 3rd default fractional threshold；

When the ratio between the consumption electricity and described loss electricity are less than the described 4th default fractional threshold, the electricity is controlled Sub- equipment shutdown.

Optionally, the described first default fractional threshold is 95%, and the described second default fractional threshold is 80%.

According to the second aspect of the disclosure, there is provided a kind of internal short-circuit detection means, the internal short-circuit detection means include：

First acquisition module, it is configured as obtaining loss electricity of the battery in the first preset time period；

Second acquisition module, it is configured as obtaining the external circuit of the battery connection in first preset time period Consume electricity；

First judge module, it is configured as judging whether the consumption electricity and the ratio between the loss electricity are pre- less than first If fractional threshold, the described first default fractional threshold is less than 1；

Determining module, it is configured as the consumption electricity and is less than the described first default ratio with described the ratio between the electricity that loses During threshold value, determine that there occurs internal short-circuit for the battery.

Optionally, the determining module, is configured as：

Obtain the specified internal resistance of the battery；

Optionally, first acquisition module, is configured as：

Obtain the open-circuit voltage OCV curves of the default battery；

Optionally, the external circuit is connected with Coulomb meter, second acquisition module, is configured as：

The consumption electricity is obtained by the Coulomb meter.

Optionally, the battery and the external circuit are respectively provided with the electronic device, and the internal short-circuit detection means is also wrapped Include：

First control module, it is configured as when it is determined that internal short-circuit occurs for the battery, controlling the electronic equipment to show For indicating that the prompt message of internal short-circuit occurs for the battery.

Optionally, the internal short-circuit detection means also includes：

Second judge module, it is configured as, it is determined that after battery generation internal short-circuit, judging the consumption electricity and institute State whether the ratio between loss electricity is less than the 3rd default fractional threshold, wherein, the described 3rd default fractional threshold is less than described first Default fractional threshold；

Second control module, it is configured as default less than the described 3rd in the consumption electricity and the ratio between the loss electricity During fractional threshold, the electronic equipment is controlled to show the warning information damaged for indicating the battery.

Optionally, the internal short-circuit detection means also includes：

3rd judge module, it is configured as after it is determined that the battery damaged, judges the consumption electricity and the damage Whether the ratio between dead electricity amount is less than the 4th default fractional threshold, wherein, it is default that the described 4th default fractional threshold is less than the described 3rd Fractional threshold；

3rd control module, it is configured as default less than the described 4th in the consumption electricity and the ratio between the loss electricity During fractional threshold, the electronic equipment is controlled to shut down.

According to the third aspect of the disclosure, there is provided a kind of internal short-circuit detection means, the internal short-circuit detection means include：

Processing component；

For the memory for the executable instruction for storing the processing component；

Wherein, the processing component is configured as：

Obtain loss electricity of the battery in the first preset time period；

According to the fourth aspect of the disclosure, there is provided a kind of readable storage medium storing program for executing, be stored with the readable storage medium storing program for executing Instruction, when the readable storage medium storing program for executing is being run on processing component so that processing component performs the internal short-circuit such as first aspect Detection method.

The beneficial effect brought of technical scheme that the disclosure provides is：

Present disclose provides a kind of internal short-circuit detection method, in the internal short-circuit detection method, by integrally being damaged to battery Dead electricity amount, and the consumption electricity of external circuit are compared, to determine the accounting of the consumption electricity of external circuit.When disappearing for external circuit When the accounting of power consumption is relatively low, it may be determined that the discharge capacity accounting of battery itself is higher, at this point it is possible to determine battery, there occurs interior Short circuit.

It should be appreciated that the general description and following detailed description of the above are only exemplary, this can not be limited It is open.

Brief description of the drawings

In order to illustrate more clearly of the technical scheme in the embodiment of the present disclosure, make required in being described below to embodiment Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present disclosure, for For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings Accompanying drawing.

Fig. 1 is the structural representation of a kind of electronic equipment according to an exemplary embodiment and internal short-circuit detection means Figure；

Fig. 2 is a kind of method flow diagram of internal short-circuit detection method according to an exemplary embodiment；

Fig. 3 is the method flow diagram of another internal short-circuit detection method according to an exemplary embodiment；

Fig. 4 is a kind of method flow diagram of acquisition loss electricity according to an exemplary embodiment；

Fig. 5 is the structural representation of a kind of electronic equipment according to an exemplary embodiment；

Fig. 6 is the structural representation of another electronic equipment according to an exemplary embodiment；

Fig. 7 is the method flow diagram of another internal short-circuit detection method according to an exemplary embodiment；

Fig. 8 is a kind of structural representation of internal short-circuit detection means according to an exemplary embodiment；

Fig. 9 is the structural representation of another internal short-circuit detection means according to an exemplary embodiment；

Figure 10 is the structural representation of another internal short-circuit detection means according to an exemplary embodiment；

Figure 11 is the structural representation of another internal short-circuit detection means according to an exemplary embodiment；

Figure 12 is a kind of block diagram of internal short-circuit detection means according to an exemplary embodiment.

Accompanying drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the disclosure Example, and be used to together with specification to explain the principle of the disclosure.

Embodiment

To make the purpose, technical scheme and advantage of the disclosure clearer, below in conjunction with accompanying drawing to disclosure embodiment party Formula is described in further detail.

In various electronic equipments, battery is essential, and battery may during long-term use Internal short-circuit can occur, and then battery may be caused not use, in some instances it may even be possible to the danger such as battery explosion can occur.Therefore, detect It is very important that whether battery, which occurs safe handling of the internal short-circuit for electronic equipment,.

As shown in figure 1, battery 101 can be provided with electronic equipment 10.Battery 101 can include battery 1011, Anode pole piece 1012, cathode pole piece 1013 and barrier film 1014.Anode pole piece 1012 is connected (Fig. 1 with the positive pole of battery 1011 Annexation is not shown), cathode pole piece 1013 is connected with the negative pole of battery 1011, anode pole piece 1012 and cathode pole piece 1013 settings are closer to, and are separated between anode pole piece 1012 and cathode pole piece 1013 with barrier film 1014.

The anode pole piece 1012 and cathode pole piece 1013 of battery 101 can be with internal short-circuit detection means (Fig. 1 is not shown) It is connected.Internal short-circuit detection means can be located in electronic equipment 10, can also be independent with the phase of electronic equipment 10.Example, when When internal short-circuit detection means is located in electronic equipment, internal short-circuit detection means can be the central processing unit (English in electronic equipment Text：Central Processing Unit, referred to as：CPU), or other devices in electronic equipment in addition to CPU, this Open embodiment is not limited this.Internal short-circuit detection means can be used for detecting whether battery 101 occurs internal short-circuit.

Fig. 2 is a kind of method flow diagram of internal short-circuit detection method according to an exemplary embodiment.Such as Fig. 2 institutes Show, the internal short-circuit detection method is performed by internal short-circuit detection means, and the internal short-circuit detection method can include：

In step 201, loss electricity of the battery in the first preset time period is obtained.

In step 202, consumption electricity of the external circuit of battery connection in the first preset time period is obtained.

In step 203, judge to consume electricity and lose whether the ratio between electricity is less than the first default fractional threshold.

Wherein, the first default fractional threshold is less than 1.Example, the first default fractional threshold can be 95%.

In step 204, when consuming electricity with losing the ratio between electricity less than the first default fractional threshold, determine that battery is sent out Internal short-circuit is given birth to.

It should be noted that the loss electricity of battery includes in certain time period：The consumption electricity of the external circuit of battery connection Amount, and the discharge capacity of battery itself.When internal short-circuit does not occur for battery, the consumption for the external circuit that battery connects in the period Electricity is much larger than the ratio between the discharge capacity of battery itself, the loss electricity of the consumption electricity and battery and is more than the first default ratio threshold Value.When internal short-circuit occurs for battery, the discharge capacity increase of battery itself, the consumption electricity and battery of the external circuit of battery connection The first default fractional threshold can be less than by losing the ratio between electricity.

In summary, in the internal short-circuit detection method that the embodiment of the present disclosure provides, by battery whole loss electricity, with And the consumption electricity of external circuit is compared, to determine the accounting of the consumption electricity of external circuit.When the consumption electricity of external circuit When accounting is relatively low, it may be determined that the discharge capacity accounting of battery itself is higher, now, battery is determined there occurs internal short-circuit, so as to real The effective detection for whether battery occurring internal short-circuit is showed.

Fig. 3 is the method flow diagram of another internal short-circuit detection method according to an exemplary embodiment.This is interior short Road detection method can be performed by internal short-circuit detection means, and the embodiment of the present disclosure is located at electronic equipment with the internal short-circuit detection means In, and to be explained exemplified by the CPU in electronic equipment, as shown in figure 3, the internal short-circuit detection method can include：

In step 301, loss electricity of the battery in the first preset time period is obtained.Perform step 302.

As shown in figure 4, step 301 can include：

In step 3011, the OCV curves of default battery are obtained.Perform step 3012.

The OCV curves of battery are referred to as the open-circuit voltage (English of battery：Open CircuitVoltage, referred to as： OCV) curve.Wherein, the OCV curves of battery are curve of the electricity on the open-circuit voltage of battery of battery, namely the OCV curves Abscissa be battery open-circuit voltage, ordinate be battery electricity.

Before the electronic equipment where battery dispatches from the factory, staff can be in static condition (now external circuit in battery Power consumption stream in the first preset duration continuously less than predetermined current threshold) when, respectively measure battery multiple open-circuit voltages, with And when measuring each open-circuit voltage battery electricity, to draw the OCV curves of the battery, and the OCV curves are stored in electricity In electronic equipment where pond, example, the OCV curves can be stored in the memory in electronic equipment.In step 3011 In, CPU can directly read the OCV curves prestored in memory.

In step 3012, when detecting that external circuit meets the first preparatory condition, obtain the positive pole of battery and negative pole it Between first voltage.Perform step 3013.

Wherein, first preparatory condition is：The power consumption stream of external circuit is in the first preset duration continuously less than predetermined current Threshold value, when external circuit meets the first preparatory condition, battery is in static condition.

Example, galvanometer can be provided with the electronic equipment where battery, the galvanometer can respectively with external circuit It is connected with the CPU.The galvanometer can obtain the power consumption stream of external circuit, and CPU can be by the galvanometer at regular intervals Measure the power consumption stream of an external circuit.And when CPU by the power consumption stream of amperometric measurement to external circuit in the first preset duration During continuously less than predetermined current threshold, CPU can determine that external circuit now meets the first preparatory condition.Example, first is default Duration can be 2 hours, and predetermined current threshold can be x, and x's may range from 0 milliampere of ＜ x≤300 milliampere, and the disclosure is implemented Example is explained by taking x=300 milliamperes as an example.

Further, be also provided with potentiometer in the electronic equipment where battery, the potentiometer can respectively with electricity Positive pole, negative pole and the CPU in pond are connected.The potentiometer can obtain the voltage between the positive pole of battery and negative pole, and CPU exists After determining that external circuit meets the first preparatory condition, the now between the positive pole and negative pole of battery can be obtained by the potentiometer One voltage.

For example, at 9, the power consumption stream of the external circuit that CPU is obtained by galvanometer is less than 300 milliamperes, and afterwards In first preset duration (2 hours), the power consumption stream for the external circuit that CPU is obtained by galvanometer is continuously less than 300 milliamperes, then CPU It can determine that the power consumption stream of external circuit meets the first preparatory condition.Now, CPU can be by potentiometer, in the termination of 2 hours Moment (when that is to say at 11) obtains the first voltage between the positive pole and negative pole of battery.For example, the first of potentiometer acquisition Voltage is 3.5 volts.

In step 3013, the first electricity according to corresponding to OCV curves determine first voltage.Perform step 3014.

Example, CPU can be carried out the OCV curves obtained in the first voltage obtained by potentiometer and step 3011 Compare, draw the first electricity corresponding to the first voltage.For example, the first electricity corresponding to 3.5 volts of the first voltage is 3000 MAH.

In step 3014, when detecting that external circuit meets the second preparatory condition, obtain the positive pole of battery and negative pole it Between second voltage.Perform step 3015.

Wherein, the second preparatory condition is：In the second preset duration after external circuit meets the first preparatory condition, external circuit Power consumption stream continuously less than predetermined current threshold, when external circuit meets the second preparatory condition, battery is in static condition. CPU can continue through the power consumption stream that galvanometer obtains external circuit after detecting that external circuit meets the first preparatory condition.If In the second preset duration after external circuit the first preparatory condition of satisfaction, the power consumption stream for the external circuit that CPU is got is continuously less than this Predetermined current threshold, then CPU can determine now external circuit meet the second preparatory condition.Now, CPU can be obtained by potentiometer Second voltage between the positive pole and negative pole in power taking pond.

Optionally, the second preset duration can be equal with the first preset duration, the second preset duration can also with it is first pre- If duration is unequal.Example, the second preset duration can be 2 hours.

Example, it is assumed that CPU detects that external circuit meets the first preparatory condition at 11, and leads in 11 points of 10 minutes CPU Power consumption stream that overcurrent meter obtains again is less than 300 milliamperes, and 11: 10/after 2 hours within, CPU passes through electric current The power consumption stream that meter obtains is respectively less than 300 milliamperes, then CPU can determine that now external circuit meets the second preparatory condition, and can lead to Second electricity of the overvoltage meter between the positive pole and negative pole that the end time of 2 hours (that is to say at 13 points 10 minutes) obtains battery Pressure, for example, the second voltage is 3 volts.

In step 3015, judge whether second voltage is less than first voltage.If second voltage is less than first voltage, hold Row step 3016；If second voltage is more than or equal to first voltage, step 3012 is performed.

First voltage and second voltage can be compared by CPU after first voltage and second voltage is got, to sentence Whether disconnected second voltage is less than first voltage.It should be noted that when the second voltage of battery is less than first voltage, can be with table Bright battery is not in charged state, the relation between the second electricity of the second voltage and now battery, meets in step 3011 The relation of open-circuit voltage and electricity in the OCV curves of middle acquisition.And the second voltage in battery is more than or equal to first voltage When, it may indicate that battery is in charged state, now, the relation between the second electricity of second voltage and now battery, be not inconsistent Close the relation of the open-circuit voltage and electricity in the OCV curves obtained in step 3011.

In step 3016, the second electricity according to corresponding to the OCV curves of acquisition determine second voltage.Perform step 3017。

Example, 3 volts of the second voltage that potentiometer obtains is less than 3.5 volts of first voltage, and CPU can be true according to OCV curves Second electricity corresponding to fixed 3 volts of second voltage, for example, the second electricity is 1000 MAHs.

In step 3017, the difference of the first electricity and the second electricity is defined as damage of the battery in the first preset time period Dead electricity amount.

Wherein, external circuit meet the first preparatory condition at the time of and meet the second preparatory condition at the time of between period For the first preset time period, CPU can by battery the initial time of the first preset time period the first electricity with the end The difference for the second electricity carved, is defined as loss electricity of the battery in the first preset time period.

Example, CPU can determine that the difference of the MAH of the first electricity 3000 and the MAH of the second electricity 1000 is 2000 millis Ampere-hour, and determine that loss electricity of the battery in the first preset time period is 2000 MAHs.

In step 302, consumption electricity of the external circuit in the first preset time period is obtained.Perform step 303.

Wherein, external circuit meet the first preparatory condition at the time of and meet the second preparatory condition at the time of between period For the first preset time period.Be also provided with Coulomb meter in electronic equipment where the battery, the Coulomb meter can respectively with External circuit is connected with CPU.CPU can persistently be obtained when it is determined that external circuit meets the first preparatory condition by the Coulomb meter External circuit consumes electricity, untill detecting that external circuit meets the second preparatory condition.Example, the first preset time period can be with (detect that external circuit meets that second is default within 10 minutes to 13 points at 11 points for (detect external circuit meet the first preparatory condition at the time of) At the time of condition) between period, the consumption electricity of external circuit that Coulomb meter obtains can be 1860 MAHs.

In step 303, judge to consume electricity and lose whether the ratio between electricity is less than the first default fractional threshold.Work as consumption When electricity is less than the first default fractional threshold with losing the ratio between electricity, step 304 is performed；When consumption electricity is with losing the ratio between electricity During more than or equal to the first default fractional threshold, step 301 is performed.

Example, the first default fractional threshold can be 95%, if the consumption MAH of electricity 1860 and loss electricity 2000 The ratio between MAH is that 1860 ÷ 2000=93%, CPU can determine that the ratio is less than the first default fractional threshold 95%, then can be with Perform step 304.If consumption electricity is 1920 MAHs, consumption electricity is 1920 ÷ with losing the ratio between MAH of electricity 2000 2000=96%, CPU can determine that the ratio is more than the first default fractional threshold 95%, then can continue executing with step 301.

In step 304, determine that internal short-circuit occurs for battery.Perform step 305.

When consumption electricity is less than the first default fractional threshold with losing the ratio between electricity, CPU can be determined in battery generation Short circuit, it that is to say that the anode pole piece of battery has contacted with cathode pole piece, now the discharge capacity of battery itself is higher.

In step 305, control electronics display reminding information.Perform step 306.

Wherein, the prompt message can serve to indicate that internal short-circuit occurs for battery.When internal short-circuit occurs for battery, CPU can be with Control electronics (such as mobile phone) are shown for indicating that the prompt message of internal short-circuit occurs for battery.The prompt message can also be used The precautionary measures (such as changing battery) are taken in prompting user.As shown in figure 5, the content of the prompt message can be：" battery is Generation internal short-circuit, please changes battery in time！”

It should be noted that in step 305, CPU passes through control electronics display reminding information so that uses the electricity The user of sub- equipment can learn that internal short-circuit has occurred for the battery in electronic equipment, and make the corresponding precautionary measures, to keep away Exempt from the danger that battery internal short-circuit may be brought.

Within step 306, judge to consume electricity and lose whether the ratio between electricity is less than the 3rd default fractional threshold.Consuming When electricity is less than the 3rd default fractional threshold with losing the ratio between electricity, step 307 is performed；In consumption electricity with losing the ratio between electricity During more than or equal to the 3rd default fractional threshold, step 301 is performed.

Wherein, the 3rd default fractional threshold can be less than the first default fractional threshold, example, the 3rd default fractional threshold Can be 90%.

In step 307, control electronics show warning information.Perform step 308.

The warning information can serve to indicate that battery has damaged.Because the loss electricity of battery includes the consumption electricity of external circuit Amount and the discharge capacity of battery itself, when consumption electricity is less than 90% with losing the ratio between electricity, it may be determined that battery itself is put Electricity is more than 10% with losing the ratio between electricity.Now, the discharge capacity of battery itself is excessive, it may be determined that battery internal short-circuit situation compared with To be serious, battery has damaged, and influences user and uses the electronic equipment.

As shown in fig. 6, electronic equipment (such as mobile phone) can show the warning information damaged for indicating battery, this is pre- Alert information can be also used for prompting user to take the precautionary measures (such as changing battery), and can prompt the user whether to carry out correlation Operate (for example whether control electronics shutdown).As shown in fig. 6, the warning information can include：" battery has damaged, please and Shi Genghuan batteries, if shutdown”

In addition, electronic equipment can also show different select button (such as "Yes" and "No" button), so as to obtain user Different operations can be performed with control electronics, such as shuts down or continues by pressing or clicking on the different select button Use.When user clicks on "Yes" button, CPU can be shut down with control electronics；When user clicks on "No" button, CPU can Stop showing warning information with control electronics.

It should be noted that when user sees the warning information, the battery that user is known that in electronic equipment has damaged It is bad, the battery can be changed, to prevent the damaged condition of battery from further aggravating, or even cell expansion or blast occur Situation.

In step 308, judge to consume electricity and lose whether the ratio between electricity is less than the 4th default fractional threshold.Consuming When electricity is less than the 4th default fractional threshold with losing the ratio between electricity, step 309 is performed；In consumption electricity with losing the ratio between electricity During more than or equal to the 4th default fractional threshold, step 301 is performed.

Wherein, the 4th default fractional threshold is less than the 3rd default fractional threshold.Example, the 4th default fractional threshold can be with For 80%.

In a step 309, control electronics are shut down.

When consuming electricity with losing the ratio between electricity less than 80%, the internal short-circuit situation of battery is very serious, now CPU can be shut down with control electronics, force battery to be stopped using, avoid because battery uses in the case of badly damaged and Cause the generation of danger.

In the internal short-circuit detection method that the embodiment of the present disclosure provides, by battery whole loss electricity, and external circuit Consumption electricity be compared, with determine external circuit consumption electricity accounting.When the accounting of the consumption electricity of external circuit is relatively low When, it may be determined that the discharge capacity accounting of battery itself is higher, now, battery is determined there occurs internal short-circuit, it is achieved thereby that to electricity Whether pond occurs the effective detection of internal short-circuit.In addition, the order of severity of internal short-circuit occurs according to battery, can be with control electronics Display reminding information, warning information and control electronics shutdown, it is therefore prevented that because battery is swollen caused by the internal short-circuit of battery Situation that is swollen or even exploding.

Optionally, as shown in fig. 7, on the basis of the internal short-circuit detection method that Fig. 3 is provided, determine to disappear in step 303 After the ratio between power consumption and loss electricity are less than the first default fractional threshold, step 310, step 311, step can also be performed successively 312 and step 313, wherein, step 313 is the step of judging, and judged result is just to perform step in the case of being in step 313 Rapid 304, step 305, step 306, step 307 step 308 and step 309.Below will be to step 310, step 311, step 312 and step 313 be illustrated.

In the step 310, the actual internal resistance at battery at least one moment in the first preset time period is obtained.Perform step 311。

Example, internal resistance meter can be provided with the electronic equipment where battery, the internal resistance meter can respectively with battery and CPU is connected, and CPU can obtain the actual internal resistance of battery by the internal resistance meter.Example, CPU is detecting external circuit satisfaction During the first preparatory condition, can by the internal resistance meter at regular intervals (such as 30 minutes) obtain one-shot battery reality in Resistance, untill detecting that external circuit meets the second preparatory condition.For example, the first preset time period was 2 hours, at this 2 hours The interior internal resistance meter obtains the actual internal resistance of 4 primary cells, respectively 90 milliohms, 110 milliohms, 85 milliohms and 115 milliohms altogether.

In step 311, the average value of the actual internal resistance at least one moment is defined as average internal resistance.Perform step 312。

Example, the average value for 4 actual internal resistances that CPU is obtained by internal resistance meter is (90+110+85+ in the step 310 115) when ÷ 4=100 milliohms, CPU can determine the average value that average internal resistance is 4 actual internal resistances, that is to say 100 millis Europe.

In step 312, the specified internal resistance of battery is obtained.Perform step 313.

The specified internal resistance just can be stored in electronic equipment before the electronic equipment where battery dispatches from the factory, for example, the volume Determine in the memory that internal resistance can be stored in electronic equipment.The specified internal resistance can be when internal short-circuit does not occur for battery, it is more The secondary average value for measuring the obtained actual internal resistance of battery.Example, the specified internal resistance of battery can be 110 milliohms.

In step 313, judge whether average the ratio between internal resistance and specified internal resistance are less than the second default fractional threshold.When average When the ratio between internal resistance and specified internal resistance are less than the second default fractional threshold, step 304 is performed；When the ratio between average internal resistance and specified internal resistance During more than or equal to the second default fractional threshold, step 301 is performed.

It should be noted that when internal short-circuit occurs for battery, the internal resistance of battery has a certain degree of decline, that is to say electricity The ratio between the average internal resistance and specified internal resistance in pond can be less than 1.Second default fractional threshold can be less than 1.For example, the second default ratio Threshold value can be 80%, when the ratio between the average milliohm of internal resistance 100 and the specified milliohm of internal resistance 110 are the ≈ 90.9% of 100 ÷ 110, the ratio Value is more than the second default fractional threshold 80%, then CPU can determine that internal short-circuit does not occur for battery.When average internal resistance and specified internal resistance Ratio when being less than 80% while being less than 88 milliohm (namely average internal resistance), CPU can determine that internal short-circuit has occurred for battery.

In the internal short-circuit detection method that the embodiment of the present disclosure provides, it is determined that the consumption electricity of the external circuit of battery connection After accounting is higher, the actual internal resistance by obtaining battery draws average internal resistance, and by the ratio of average internal resistance and specified internal resistance Compared with the second default fractional threshold.When the ratio is less than the second default fractional threshold, it may be determined that battery there occurs Internal short-circuit, more accurately detected it is achieved thereby that internal short-circuit whether occurs to battery.In correlation technique, in being made for battery Internal short-circuit whether can occur to battery in journey to be monitored, generally monitor whether battery occurs to use X ray pair during internal short-circuit Battery is irradiated, and to check whether the positive/negative plate of battery is connected, and then determines whether battery occurs internal short-circuit.But Correlation technique can not carry out internal short-circuit detection during the use after battery is made, and the internal short-circuit that the embodiment of the present disclosure provides Detection method can carry out internal short-circuit detection during the use after battery is made so that user can learn that battery is in time No generation internal short-circuit, internal short-circuit detection method simple and fast.

In summary, in the internal short-circuit detection method that the embodiment of the present disclosure provides, by battery whole loss electricity, with And the consumption electricity of external circuit is compared, to determine the accounting of the consumption electricity of external circuit.When the consumption electricity of external circuit When accounting is relatively low, it may be determined that the discharge capacity accounting of battery itself is higher, at this point it is possible to determine battery, there occurs internal short-circuit.Separately Outside, the order of severity of internal short-circuit occurs according to battery, can be with control electronics display reminding information, warning information and control Electronic equipment shuts down, it is therefore prevented that situation about even being exploded due to cell expansion caused by the internal short-circuit of battery.

Fig. 8 is a kind of structural representation of internal short-circuit detection means according to an exemplary embodiment.Such as Fig. 8 institutes Show, the internal short-circuit detection means 00 can include：

First acquisition module 001, it is configured as obtaining loss electricity of the battery in the first preset time period；

Second acquisition module 002, it is configured as obtaining consumption of the external circuit of battery connection in the first preset time period Electricity；

First judge module 003, it is configured as judging to consume electricity and loses whether the ratio between electricity is less than the first default ratio It is worth threshold value, the first default fractional threshold is less than 1；

Determining module 004, when being configured as consuming electricity with losing the ratio between electricity less than the first default fractional threshold, really Determining battery, there occurs internal short-circuit.

In summary, in the internal short-circuit detection means that the embodiment of the present disclosure provides, the first judge module passes through whole to battery Bulk diffusion electricity, and the consumption electricity of external circuit are compared, to determine the accounting of the consumption electricity of external circuit.Work as external circuit Consumption electricity accounting it is relatively low when, determining module can determine that the discharge capacity accounting of battery itself is higher, now, determine battery There occurs internal short-circuit, it is achieved thereby that whether battery occurs the effective detection of internal short-circuit.

Optionally, determining module 004 is configured as：

Obtain the actual internal resistance at battery at least one moment in the first preset time period；

Obtain the specified internal resistance of battery；

Judge whether average the ratio between internal resistance and specified internal resistance are less than the second default fractional threshold, the second default fractional threshold is small In 1；

When consumption electricity is less than the first default fractional threshold, and average the ratio between internal resistance and specified internal resistance with losing the ratio between electricity During less than the second default fractional threshold, determining battery, there occurs internal short-circuit.

Optionally, the first acquisition module 001 is configured as：

Obtain the open-circuit voltage OCV curves of default battery；

When detecting that external circuit meets the first preparatory condition, the first voltage between the positive pole of battery and negative pole is obtained, First preparatory condition is：The power consumption stream of external circuit is in the first preset duration continuously less than predetermined current threshold, predetermined current threshold It is worth for x, 0 milliampere of ＜ x≤300 milliampere；

The first electricity according to corresponding to OCV curves determine first voltage；

When detecting that external circuit meets the second preparatory condition, the second voltage between the positive pole of battery and negative pole is obtained, Second preparatory condition is：In the second preset duration after external circuit meets the first preparatory condition, the power consumption stream of external circuit continues Less than predetermined current threshold；

When second voltage is less than first voltage, the second electricity according to corresponding to OCV curves determine second voltage；

The difference of first electricity and the second electricity is defined as to lose electricity.

Optionally, external circuit is connected with Coulomb meter, and the second acquisition module 002 is configured as：Obtained and consumed by Coulomb meter Electricity.

Optionally, battery and external circuit are respectively provided with the electronic device, and Fig. 9 is another according to an exemplary embodiment A kind of structural representation of internal short-circuit detection means, as shown in figure 9, on the basis of Fig. 8, internal short-circuit detection means 00 can be with Including：

First control module 005, it is configured as when it is determined that internal short-circuit occurs for battery, control electronics are shown for referring to Show that the prompt message of internal short-circuit occurs for battery.

Optionally, Figure 10 is the structural representation of another internal short-circuit detection means according to an exemplary embodiment Figure, as shown in Figure 10, on the basis of Fig. 9, internal short-circuit detection means 00 can also include：

Second judge module 006, it is configured as, it is determined that after battery generation internal short-circuit, judging to consume electricity with losing electricity The ratio between whether be less than the 3rd default fractional threshold, wherein, the 3rd default fractional threshold is less than the first default fractional threshold；

Second control module 007, it is configured as being less than the 3rd default fractional threshold with losing the ratio between electricity in consumption electricity When, control electronics show the warning information damaged for indicating battery.

Optionally, Figure 11 is the structural representation of another internal short-circuit detection means according to an exemplary embodiment Figure, as shown in figure 11, on the basis of Figure 10, internal short-circuit detection means 00 can also include：

3rd judge module 008, it is configured as after it is determined that battery damaged, judges to consume electricity with losing the ratio between electricity Whether fourth default fractional threshold is less than, wherein, the 4th default fractional threshold is less than the 3rd default fractional threshold；

3rd control module 009, it is configured as being less than the 4th default fractional threshold with losing the ratio between electricity in consumption electricity When, control electronics shutdown.

Optionally, the first default fractional threshold is 95%, and the second default fractional threshold is 80%.

In summary, in the internal short-circuit detection means that the embodiment of the present disclosure provides, the first judge module passes through whole to battery Bulk diffusion electricity, and the consumption electricity of external circuit are compared, to determine the accounting of the consumption electricity of external circuit.Work as external circuit Consumption electricity accounting it is relatively low when, it may be determined that the discharge capacity accounting of battery itself is higher, and now, determining module determines battery There occurs internal short-circuit, it is achieved thereby that whether battery occurs the effective detection of internal short-circuit.In addition, the first control module can be When internal short-circuit occurs for battery, control electronics display reminding information, the second control module can be shown in advance with control electronics Alert information, and the 3rd control module can be shut down with control electronics, it is therefore prevented that due to battery caused by the internal short-circuit of battery The situation that expansion is even exploded.

Figure 12 is a kind of block diagram of internal short-circuit detection means according to an exemplary embodiment.Optionally, internal short-circuit Detection means 1400 can be mobile phone, computer, digital broadcast terminal, messaging devices, game console, and flat board is set It is standby, Medical Devices, body-building equipment, personal digital assistant etc..

Reference picture 12, device 1400 can include following one or more assemblies：Processing component 1402, memory 1404, Power supply module 1406, multimedia groupware 1408, audio-frequency assembly 1410, the interface 1412 of input/output (I/O), sensor cluster 1414, and communication component 1416.

The integrated operation of the usual control device 1400 of processing component 1402, such as communicated with display, call, data, The operation that camera operation and record operation are associated.Processing component 1402 can include one or more processors 1420 to perform Instruction, to complete all or part of step of above-mentioned method.In addition, processing component 1402 can include one or more moulds Block, the interaction being easy between processing component 1402 and other assemblies.For example, processing component 1402 can include multi-media module, To facilitate the interaction between multimedia groupware 1408 and processing component 1402.

Memory 1404 is configured as storing various types of data to support the operation in device 1400.These data Example includes being used for the instruction of any application program or method operated on device 1400, contact data, telephone book data, Message, picture, video etc..Memory 1404 can by any kind of volatibility or non-volatile memory device or they Combination is realized, such as static RAM (SRAM), Electrically Erasable Read Only Memory (EEPROM), it is erasable can Program read-only memory (EPROM), programmable read only memory (PROM), read-only storage (ROM), magnetic memory, flash memory Reservoir, disk or CD.

Power supply module 1406 provides electric power for the various assemblies of device 1400.Power supply module 1406 can include power management System, one or more power supplys, and other components associated with generating, managing and distributing electric power for device 1400.

Multimedia groupware 1408 is included in the screen of one output interface of offer between described device 1400 and user. In some embodiments, screen can include liquid crystal display (LCD) and touch panel (TP).If screen includes touch panel, Screen may be implemented as touch-screen, to receive the input signal from user.Touch panel includes one or more touch and passed Sensor is with the gesture on sensing touch, slip and touch panel.The touch sensor can not only sensing touch or slip be dynamic The border of work, but also detect the duration and pressure related to the touch or slide.In certain embodiments, it is more Media component 1408 includes a front camera and/or rear camera.When device 1400 is in operator scheme, mould is such as shot When formula or video mode, front camera and/or rear camera can receive outside multi-medium data.Each preposition shooting Head and rear camera can be a fixed optical lens system or have focusing and optical zoom capabilities.

Audio-frequency assembly 1410 is configured as output and/or input audio signal.For example, audio-frequency assembly 1410 includes a wheat Gram wind (MIC), when device 1400 is in operator scheme, during such as call model, logging mode and speech recognition mode, microphone quilt It is configured to receive external audio signal.The audio signal received can be further stored in memory 1404 or via communication Component 1416 is sent.In certain embodiments, audio-frequency assembly 1410 also includes a loudspeaker, for exports audio signal.

I/O interfaces 1412 provide interface, above-mentioned peripheral interface module between processing component 1402 and peripheral interface module Can be keyboard, click wheel, button etc..These buttons may include but be not limited to：Home button, volume button, start button and Locking press button.

Sensor cluster 1414 includes one or more sensors, and the state for providing various aspects for device 1400 is commented Estimate.For example, sensor cluster 1414 can detect opening/closed mode of device 1400, the relative positioning of component, such as institute The display and keypad that component is device 1400 are stated, sensor cluster 1414 can be with detection means 1400 or device 1,400 1 The position of individual component changes, the existence or non-existence that user contacts with device 1400, the orientation of device 1400 or acceleration/deceleration and dress Put 1400 temperature change.Sensor cluster 1414 can include proximity transducer, be configured in no any physics The presence of object nearby is detected during contact.Sensor cluster 1414 can also include optical sensor, as CMOS or ccd image are sensed Device, for being used in imaging applications.In certain embodiments, the sensor cluster 1414 can also include acceleration sensing Device, gyro sensor, Magnetic Sensor, pressure sensor or temperature sensor.

Communication component 1416 is configured to facilitate the communication of wired or wireless way between device 1400 and other equipment.Dress The wireless network based on communication standard, such as WiFi, 2G or 3G, or combinations thereof can be accessed by putting 1400.It is exemplary at one In embodiment, communication component 1416 receives broadcast singal or broadcast correlation from external broadcasting management system via broadcast channel Information.In one exemplary embodiment, the communication component 1416 also includes near-field communication (NFC) module, to promote short distance Communication.For example, radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra wide band can be based in NFC module (UWB) technology, bluetooth (BT) technology and other technologies are realized.

In the exemplary embodiment, device 1400 can be by one or more application specific integrated circuits (ASIC), numeral Signal processor (DSP), digital signal processing appts (DSPD), PLD (PLD), field programmable gate array (FPGA), controller, microcontroller, microprocessor or other electronic components are realized, for performing the above method.

In the exemplary embodiment, a kind of non-transitorycomputer readable storage medium including instructing, example are additionally provided Such as include the memory 1404 of instruction, above-mentioned instruction can be performed to complete the above method by the processor 1420 of device 1400.Example Such as, the non-transitorycomputer readable storage medium can be ROM, it is random access memory (RAM), CD-ROM, tape, soft Disk and optical data storage devices etc..

A kind of non-transitorycomputer readable storage medium, when the instruction in the computer-readable recording medium is by device During 1400 computing device so that device 1400 is able to carry out a kind of internal short-circuit detection method, and methods described includes：

Obtain loss electricity of the battery in the first preset time period；

Obtain the specified internal resistance of the battery；

Obtain the open-circuit voltage OCV curves of the default battery；

The consumption electricity is obtained by the Coulomb meter.

Optionally, methods described also includes：

It should be noted that：Whether the internal short-circuit detection means that above-described embodiment provides occurs internal short-circuit in detection battery When, only with the division progress of above-mentioned each functional module for example, in practical application, above-mentioned function can be divided as needed With by different functional module completions, i.e., the internal structure of internal short-circuit detection means is divided into different functional modules, with complete Into all or part of function described above.In addition, the internal short-circuit detection means that above-described embodiment provides detects with internal short-circuit Embodiment of the method belongs to same design, and its implementation process refers to embodiment of the method, repeats no more here.

It should be noted that the embodiment of the method that the embodiment of the present disclosure provides can mutually join with corresponding device embodiment Examine, the embodiment of the present disclosure is not limited this.The sequencing for the embodiment of the method step that the embodiment of the present disclosure provides can enter The appropriate adjustment of row, step also according to circumstances can accordingly be increased and decreased, and any one skilled in the art is in this public affairs Open in the technical scope of exposure, the method that change can be readily occurred in, should all cover within the protection domain of the disclosure, therefore not Repeat again.

The foregoing is only the alternative embodiment of the disclosure, not to limit the disclosure, all spirit in the disclosure and Within principle, any modification, equivalent substitution and improvements made etc., it should be included within the protection domain of the disclosure.

Claims

1. a kind of internal short-circuit detection method, it is characterised in that methods described includes：

Obtain loss electricity of the battery in the first preset time period；

Judge that the consumption electricity loses whether the ratio between electricity is less than the first default fractional threshold, the described first default ratio with described It is worth threshold value and is less than 1；

When the ratio between the consumption electricity and described loss electricity are less than the described first default fractional threshold, the battery hair is determined Internal short-circuit is given birth to.

2. according to the method for claim 1, it is characterised in that described when the consumption electricity loses the ratio between electricity with described During less than the described first default fractional threshold, the battery is determined there occurs internal short-circuit, including：

Obtain the specified internal resistance of the battery；

Judge whether average the ratio between the internal resistance and the specified internal resistance are less than the second default fractional threshold, the described second default ratio It is worth threshold value and is less than 1；

When the consumption electricity and described loss the ratio between electricity are less than the described first default fractional threshold, and the average internal resistance with When the ratio between described specified internal resistance is less than the described second default fractional threshold, determine that there occurs internal short-circuit for the battery.

3. method according to claim 1 or 2, it is characterised in that the acquisition battery is in the first preset time period Electricity is lost, including：

Obtain the open-circuit voltage OCV curves of the default battery；

When detecting that the external circuit meets the first preparatory condition, the first electricity between the positive pole and negative pole of the battery is obtained Pressure, first preparatory condition are：The power consumption stream of the external circuit in the first preset duration continuously less than predetermined current threshold, The predetermined current threshold is x, 0 milliampere of ＜ x≤300 milliampere；

When detecting that the external circuit meets the second preparatory condition, the second electricity between the positive pole and negative pole of the battery is obtained Pressure, second preparatory condition are：It is described in the second preset duration after the external circuit meets first preparatory condition The power consumption stream of external circuit is continuously less than the predetermined current threshold；

When the second voltage is less than the first voltage, according to corresponding to the OCV curves determine the second voltage Two electricity；

4. method according to claim 1 or 2, it is characterised in that the external circuit is connected with Coulomb meter, the acquisition institute Consumption electricity of the external circuit of battery connection in first preset time period is stated, including：

The consumption electricity is obtained by the Coulomb meter.

5. according to the method for claim 1, it is characterised in that the battery and the external circuit are arranged at electronic equipment In, methods described also includes：

When it is determined that internal short-circuit occurs for the battery, the electronic equipment is controlled to show for indicating that internal short-circuit occurs for the battery Prompt message.

6. according to the method for claim 5, it is characterised in that methods described also includes：

It is determined that after battery generation internal short-circuit, judge that the consumption electricity loses whether the ratio between electricity is less than the 3rd with described Default fractional threshold, wherein, the described 3rd default fractional threshold is less than the described first default fractional threshold；

When the ratio between the consumption electricity and described loss electricity are less than the described 3rd default fractional threshold, the electronics is controlled to set It is standby to show the warning information damaged for indicating the battery.

7. according to the method for claim 6, it is characterised in that methods described also includes：

After it is determined that the battery damaged, it is default to judge whether the ratio between the consumption electricity and described loss electricity are less than the 4th Fractional threshold, wherein, the described 4th default fractional threshold is less than the described 3rd default fractional threshold；

When the ratio between the consumption electricity and described loss electricity are less than the described 4th default fractional threshold, the electronics is controlled to set Standby shutdown.

8. according to the method for claim 2, it is characterised in that

Described first default fractional threshold is 95%, and the described second default fractional threshold is 80%.

9. a kind of internal short-circuit detection means, it is characterised in that the internal short-circuit detection means includes：

Second acquisition module, it is configured as obtaining consumption of the external circuit of the battery connection in first preset time period Electricity；

First judge module, it is configured as judging that the consumption electricity loses whether the ratio between electricity is less than the first default ratio with described It is worth threshold value, the described first default fractional threshold is less than 1；

Determining module, it is configured as the consumption electricity and is less than the described first default fractional threshold with described the ratio between the electricity that loses When, determine that there occurs internal short-circuit for the battery.

10. internal short-circuit detection means according to claim 9, it is characterised in that the determining module, be configured as：

Obtain the specified internal resistance of the battery；

11. the internal short-circuit detection means according to claim 9 or 10, it is characterised in that first acquisition module, by with It is set to：

Obtain the open-circuit voltage OCV curves of the default battery；

12. the internal short-circuit detection means according to claim 9 or 10, it is characterised in that the external circuit connects with Coulomb meter Connect, second acquisition module, be configured as：

The consumption electricity is obtained by the Coulomb meter.

13. internal short-circuit detection means according to claim 9, it is characterised in that the battery and the external circuit are all provided with Put in the electronic device, the internal short-circuit detection means also includes：

First control module, it is configured as when it is determined that internal short-circuit occurs for the battery, controlling the electronic equipment to show and being used for Indicate that the prompt message of internal short-circuit occurs for the battery.

14. according to the method for claim 13, it is characterised in that the internal short-circuit detection means also includes：

Second judge module, it is configured as, it is determined that after battery generation internal short-circuit, judging the consumption electricity and the damage Whether the ratio between dead electricity amount is less than the 3rd default fractional threshold, wherein, it is default that the described 3rd default fractional threshold is less than described first Fractional threshold；

Second control module, it is configured as being less than the described 3rd default ratio in the consumption electricity and described the ratio between the electricity that loses During threshold value, the electronic equipment is controlled to show the warning information damaged for indicating the battery.

15. internal short-circuit detection means according to claim 14, it is characterised in that the internal short-circuit detection means is also wrapped Include：

3rd judge module, it is configured as after it is determined that the battery damaged, judges the consumption electricity and the loss electricity Whether the ratio between amount is less than the 4th default fractional threshold, wherein, the described 4th default fractional threshold is less than the described 3rd default ratio Threshold value；

3rd control module, it is configured as being less than the described 4th default ratio in the consumption electricity and described the ratio between the electricity that loses During threshold value, the electronic equipment is controlled to shut down.

16. internal short-circuit detection means according to claim 10, it is characterised in that

17. a kind of internal short-circuit detection means, it is characterised in that the internal short-circuit detection means includes：

Processing component；

Wherein, the processing component is configured as：

Obtain loss electricity of the battery in the first preset time period；

18. a kind of readable storage medium storing program for executing, it is characterised in that instruction is stored with the readable storage medium storing program for executing, readable is deposited when described Storage media on processing component when running so that processing component performs the internal short-circuit detection side as described in claim 1 to 8 is any Method.