CN103424704B - A kind of battery check device, method and battery - Google Patents
A kind of battery check device, method and battery Download PDFInfo
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- CN103424704B CN103424704B CN201210162829.2A CN201210162829A CN103424704B CN 103424704 B CN103424704 B CN 103424704B CN 201210162829 A CN201210162829 A CN 201210162829A CN 103424704 B CN103424704 B CN 103424704B
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Abstract
The invention discloses a kind of battery check device, method and battery, this pick-up unit comprises sensor in electronic equipment and processor; Sensor is used for the different increment sizes sensed when being in place according to different capabilities battery, exports corresponding control signal respectively to processor; The control signal that processor exports according to sensor, identifies the battery of the different capabilities installed in electronic equipment.Adopt the present invention, the battery of the different capabilities that electronic equipment uses can be detected.
Description
Technical field
The present invention relates to the rechargeable battery technical field capable of circulation that electronic equipment uses, particularly relate to a kind of battery check device, method and battery.
Background technology
At present, adopt rechargeable battery capable of circulation as the portable electric appts of power supply, as mobile terminal, notebook computer, the market demand fast development of panel computer etc., and the function and application of these electronic equipments gets more and more, this just causes power consumption increasing, and the demand of equipment to battery capacity is increasing.But due to the restriction of existing battery technology, the capacity of battery is often directly proportional to the volume of battery.The electricity vitality and portability of equipment are difficult to satisfactory to both parties, this just cause a lot of electronic equipment to be furnished with two covers even more overlaps optional battery, in same device battery draw-in groove, during corresponding different demand, use the battery of different capabilities and volume instead.Such application brings some problems simultaneously, as calculated the identification of different capabilities battery and electricity and the problem such as electricity display.
Lithium battery has the advantages such as high stored energy, life-span long, lightweight and memory-less effect, has obtained in existing electronic equipment and has used widely.MAh is the measurement unit of battery capacity, and specifically can be released to the sum of the outside electronics used in battery, the standard unit be converted into physically is exactly coulomb.The SI units of coulomb are the ampere second that electric current is taken advantage of in the time, i.e. 1mAh=0.001 ampere * 3600 seconds=3.6 ampere second=3.6 coulomb.
Existing electronic equipment, mainly contains the calculating that following three kinds of methods realize electricity:
1. direct cell voltage method for supervising: directly cell voltage method for supervising is simple; But the method precision lower (20%), and lack the available protecting to battery;
2. fuel cell modelling method: fuel cell modelling method improves the measuring accuracy (5%) of electricity effectively, is simple and easy to use, without the need to doing estimating for the first time of battery; But the foundation of tables of data is a complicated process, and also bad to the compatibility of the battery of different capabilities or type;
3. coulombmeter detection method: coulombmeter can the electric quantity change of accurate tracking battery, and precision can reach 1%; But coulombmeter exists the problem that battery is estimated for the first time, need to know rated capacity, current capacities and current current loss, and the precision of current resistor directly affects the precision of electricity.
At present, with coulombmeter detection method the most accurately with effective, the electronic equipments such as the intelligent mobile phone terminal of main flow and panel computer all adopt coulombmeter detection method mostly, but the electricity that coulombmeter detection method can only solve fixed capacity battery calculates and electricity display problem, the battery of corresponding different capabilities, coulombmeter detects rule cannot accurately calculate display electricity.Therefore, how to realize simply, identify that the battery of different capabilities becomes the current technical barrier needing to solve fast, accurately.
Summary of the invention
The technical matters that the present invention solves is to provide a kind of battery check device, method and battery, can detect the battery of the different capabilities that electronic equipment uses.
For solving the problems of the technologies described above, the invention provides a kind of battery check device, being applied to electronic equipment, described pick-up unit comprises sensor in described electronic equipment and processor;
Described sensor is used for the different increment sizes sensed when being in place according to different capabilities battery, exports corresponding control signal respectively to described processor;
The described control signal that described processor exports according to described sensor, identifies the battery of the different capabilities installed in described electronic equipment.
Further, described sensor comprises: eddy-current transducer, Hall element, electro-optical pickoff or capacitive transducer.
Further, described sensor sensing to increment size comprise: current increment, voltage increment, optical signal launch and time of reception are poor, capacitance increase.
Further, the described control signal that described sensor exports comprises: cell thickness signal, the distance signal of battery range sensor, level signal.
Present invention also offers a kind of battery, be applied to electronic equipment, described battery has the induction part suitable with the sensor in described electronic equipment, when being in place to make described battery, described sensor according to the increment size sensed, can detect described battery.
Further, described induction part comprises: electric conductor, magnetic field barrier bodies, insulator, optical reflecting medium, light absorbing medium, magnetic induction part.
Further, described induction part is arranged on the battery body of described battery or the outside or inside of battery cover.
Present invention also offers a kind of battery detection method, described method comprises:
Induction part is set or different induction parts is set respectively in described first capacity batteries and described second capacity batteries in the one of the first capacity batteries and the second capacity batteries;
When battery is installed in battery compartment, according to the increment size that the sensor sensing in described electronic equipment arrives, detect the battery of the different capabilities installed in described electronic equipment.
Further, the different increment sizes sensed when described sensor is in place according to different capabilities battery, export the first control signal or the second control signal respectively to described processor;
Described processor, according to described first control signal received or the second control signal, identifies that what install in described electronic equipment is described first capacity batteries or the second capacity batteries.
Further, described sensor is eddy-current transducer, and described induction part is be located at the electric conductor on the battery cover of described first capacity batteries, and/or is encapsulated in the magnetic field barrier bodies in the battery body of described second capacity batteries.
Further, described sensor is Hall element, described induction part be located at described first capacity batteries battery cover on the magnetic induction part at corresponding described Hall element place;
When wherein said first capacity batteries is in installation site, described magnetic induction part is in the induction zone of described Hall element.
Further, described magnetic induction part comprises magnet, and the magnetic pole of described magnet is vertical with the sensitive surface of described Hall element.
Further, the output terminal of described Hall element is connected to a processor,
When described first capacity batteries is installed in described electronic equipment, described Hall element senses that described magnetic induction part is close, to described processor output low level signal; Described processor is according to the described low level signal received, and identifying what install in described electronic equipment is described first capacity batteries;
When the second capacity batteries not arranging magnetic induction part is installed in described electronic equipment, described Hall element induction is close less than described magnetic induction part, exports high level signal to described processor; Described processor is according to the described high level signal received, and identifying what install in described electronic equipment is described second capacity batteries.
Further, described sensor is electro-optical pickoff, and described induction part is described photoinduction medium;
Wherein, described photoinduction medium comprises: light absorbing medium, optical reflecting medium.
Further, light absorbing medium and optical reflecting medium are set respectively on described first capacity batteries He on described second capacity batteries;
Or, on described first capacity batteries He on described second capacity batteries, different light absorbing mediums or different optical reflecting mediums are set respectively.
Further, when battery is installed in battery compartment, described electro-optical pickoff utilizing emitted light signal, and according to the mistiming of transmitting and receiving to the light signal of described photoinduction dieletric reflection, export corresponding control signal;
According to the different control signal that described electro-optical pickoff exports, identify the battery of different capabilities.
Further, described control signal comprises: switching signal, the distance signal of battery range sensor, level signal.
Compared to prior art, the present invention program at least tool has the following advantages:
1. can identify the battery of different capabilities in electronic equipment, for user provides multiple choices, improve the competitive edge of product in market;
2. can the battery of compatible two kinds of different capabilities in same battery cavities;
3., the thin battery that if customer selecting capacity is less, complete machine cost can be reduced.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of the sensor of battery check device of the present invention;
Fig. 2 a and Fig. 2 b is respectively the assembling schematic diagram of thin battery and thick battery;
Fig. 3 a and Fig. 3 b is respectively the fool-proof design schematic diagram of the battery cover of thin battery and thick battery;
Fig. 4 is the connecting circuit schematic diagram of vortex type proximity switch in the embodiment of the present invention one;
Fig. 5 is the schematic diagram of the battery cover of thin battery in embodiment of the present invention 1-1;
Fig. 6 is the installation site schematic diagram of vortex type proximity switch in embodiment of the present invention 1-2;
Fig. 7 encapsulates ferritic schematic diagram in thick battery in embodiment of the present invention 1-2;
Fig. 8 is the connecting circuit schematic diagram of Hall element in the embodiment of the present invention two;
Fig. 9 is the schematic diagram of battery cover in the embodiment of the present invention two;
Figure 10 is the schematic diagram of the opening on the back cover in the embodiment of the present invention two above mainboard;
Figure 11 is the connecting circuit schematic diagram of electro-optical pickoff in the embodiment of the present invention three;
Figure 12 is the schematic diagram of the photoinduction medium in the embodiment of the present invention three on battery cover;
Figure 13 is the schematic diagram of light inlet window in the embodiment of the present invention three;
Figure 14 is the principle schematic of capacitive transducer in the embodiment of the present invention four;
Figure 15 is the riding position schematic diagram of the relative battery of capacitive transducer in the embodiment of the present invention four;
Figure 16 is the circuit connection diagram of capacitive transducer in the embodiment of the present invention four;
Figure 17 is the composition schematic diagram of the metering circuit of the capacitive transducer of the embodiment of the present invention four.
Embodiment
Present embodiment provides a kind of battery check device, is applied to electronic equipment, the following scheme of concrete employing:
Described pick-up unit comprises sensor in described electronic equipment and processor;
Described sensor is used for the different increment sizes sensed when being in place according to different capabilities battery, exports corresponding control signal respectively to described processor;
The described control signal that described processor exports according to described sensor, identifies the battery of the different capabilities installed in described electronic equipment.
Further, described sensor comprises: eddy-current transducer, Hall element, electro-optical pickoff or capacitive transducer.
Described sensor sensing to increment size comprise: current increment, voltage increment, optical signal launch and time of reception are poor, capacitance increase, etc.
Described control signal comprises: the distance signal, level signal etc. of cell thickness signal, battery range sensor.
In addition, present embodiment additionally provides a kind of battery, is applied to electronic equipment, the following scheme of concrete employing:
Described battery has the induction part suitable with the sensor in described electronic equipment, and when being in place to make described battery, described sensor according to the increment size sensed, can detect described battery.
Further, described induction part comprises: electric conductor, magnetic field barrier bodies, insulator, optical reflecting medium, light absorbing medium, magnetic induction part, etc.
Further, described induction part can be arranged on the battery body of described battery or the outside or inside of battery cover.
In addition, present embodiment additionally provides a kind of battery detection method, the following scheme of concrete employing:
Induction part is set or different induction parts is set respectively in described first capacity batteries and described second capacity batteries in the one of the first capacity batteries and the second capacity batteries;
When battery is installed in battery compartment, according to the increment size that the sensor sensing in described electronic equipment arrives, detect the battery of the different capabilities installed in described electronic equipment.
Further, the different increment sizes sensed when described sensor is in place according to different capabilities battery, export the first control signal or the second control signal respectively to described processor;
Described processor, according to described first control signal received or the second control signal, identifies that what install in described electronic equipment is described first capacity batteries or the second capacity batteries.
Further, described sensor is eddy-current transducer, and described induction part is be located at the electric conductor on the battery cover of described first capacity batteries, and/or is encapsulated in the magnetic field barrier bodies in the battery body of described second capacity batteries.
Further, described sensor is Hall element, and described induction part is be located at the magnetic induction part in the one of described first capacity batteries and described second capacity batteries.
Further, described magnetic induction part can be specifically magnet.
Further, described sensor is electro-optical pickoff, and described induction part is described photoinduction medium.
Further, described photoinduction medium comprises: light absorbing medium, optical reflecting medium.
Further, described sensor is capacitive transducer.
For making the object, technical solutions and advantages of the present invention clearly understand, hereinafter will be described in detail to embodiments of the invention by reference to the accompanying drawings.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combination in any mutually.
When the different capabilities battery of electronic equipment corresponds to the battery of different-thickness, the battery cavities of electronic equipment needs can the different different capabilities battery of compatible thickness, as shown in Figure 2 a and 2 b, the battery cavities in back cover 1 needs the battery of energy compatible thin battery 20 and thick battery 30 two kinds of different-thickness.In addition, also need to consider the cooperation of two locator card angles and structure before battery.When structural design, the battery cavities of battery correspondence oneself, can cut out certain thickness step on two angles, comes matching battery chamber and realizes the fixing of battery.In the present embodiment, in order to ensure the compatible thickness battery of same battery cavities, needing the step in thickness battery two orientation angles to make equally, to ensure shape and the consistency of thickness at the Battery Card angle of thickness battery, thus ensureing the feasibility of assembling.
In addition, in some schemes of the present invention, due to for thickness two kinds of batteries, there are thickness two kinds of battery covers respectively, therefore, the structure of battery cover has done fool-proof design, as shown in Figure 3 a and Figure 3 b shows, the diverse location of thickness two kinds of battery covers is provided with the identical rib of size 211 and 311, and the relevant position on thickness two kinds of batteries has breach.When covering battery cover, the rib 211 on thin battery lid 21 can embed the breach 201 on thin battery 20, and with the constructive interference of thick battery; Rib 311 on thick battery cover 31 can embed the breach 301 on thick battery 30, and with the constructive interference of thin battery.Which ensure that when putting into thin battery in battery of mobile phone storehouse, thin battery lid can only be covered; When putting into thick battery in battery of mobile phone storehouse, thick battery cover can only be covered.
Embodiment one
In the present embodiment, be adopt eddy-current transducer (also claiming vortex type proximity switch) in conjunction with the induction part in battery, realize the detection and Identification of different capabilities battery.
Eddy effect is that electric conductor can produce exchange current due to electromagnetic induction in alternating magnetic field, and these induction currents be that circle distributes around the magnetic line of force of alternating magnetic field, seems just as the vortex in water, so be called vortex current.Vortex type proximity switch is also referred to as inductance approach switch, and vortex type proximity switch can produce the magnetic field of alternation, and when there being conductive body can produce the switch of alternating magnetic field close to this, electric conductor inside can produce eddy current.This eddy current reacts to proximity switch, switch internal circuit parameter is changed, identifies thus and shift near with or without conductive body, and then the on-off of gauge tap.Therefore, the close of object can be detected by this vortex type proximity switch, and the object that can detect must be electric conductor.
For mobile phone terminal, in the present embodiment, mobile phone is configured with the battery of thickness two kinds of different capabilities, and the following two kinds mode specifically can be had to realize the detection of different capabilities battery:
Further, such scheme specifically implements there is the following two kinds:
The first, electronic equipment mainboard places vortex type proximity switch away from the position of battery, does not also place other metal devices near this proximity switch.Meanwhile, the output terminal of proximity switch is connected to interrupt pin or the universaling I/O port of primary processor.Thickness two kinds of batteries of electronic equipment are respectively to there being two kinds of battery covers.If on battery cover on corresponding mainboard the place of vortex type proximity switch place sheet metal or FPC coil, when battery cover closes, sheet metal or FPC coil are near proximity switch, and the magnetic line of force produced with proximity switch is perpendicular.Like this, namely proximity switch can detect the close of electric conductor according to eddy effect, thus makes it output signal to become low level from high level.If electric conductor is not placed in relevant position on battery cover, then when battery cover closes, the output pin of proximity switch still keeps high level.It should be noted that, other electric conductors on mainboard can not produce interference to vortex type proximity switch, because if electric conductor and magnetic line of force out of plumb, are do not have eddy effect.In addition, for causing error detection when being placed on other electric conductors after avoiding mobile phone power-on, preferably, in the setting-up time section only after mobile phone terminal opening, above-mentioned detection is carried out.In the middle of electronic equipment start process, by judging the state of this interrupt pin or universaling I/O port, determining the capacity of battery used, enabling corresponding driver.Different battery capacities can have influence on charging current and electricity display.
The second is below vortex type proximity switch being placed on corresponding battery on mainboard, directly detects thickness two kinds of batteries, the battery cover that thickness two kinds of batteries are corresponding does not need place electric conductor.But, need in thick battery to add one deck ferrite lamina, when battery compartment put into by so thick battery, because ferrite is to the iris action in magnetic field, proximity switch is approximate can't detect the close of electric conductor (battery), and its output pin still maintains high level.And in thin battery, there is no ferrite lamina, when thin battery puts into battery compartment, proximity switch detects the close of electric conductor (battery) due to eddy effect, thus makes it output signal to become low level from high level.Accordingly, electronic equipment can distinguish thickness two kinds of batteries.
Like this, electronic equipment corresponds to the battery of different-thickness, only needs to change corresponding battery case just passable, and battery cavities can the battery of compatible two thickness.
Embodiment 1-1
As shown in Figure 5, in the present embodiment, a vortex type proximity switch 12 is placed in the position that cell phone mainboard 2 is avoided battery, and thick battery cover does not have sheet metal.As shown in Figure 5, a sheet metal 212 is mounted with in the position of the corresponding eddy current proximity switch of thin battery lid 21.The plane orthogonal of sheet metal 212 is in the magnetic line of force of eddy current proximity switch.Like this, according to eddy effect, what mobile phone can judge active user in start process is thick or thin battery lid, and then what judge to place in battery compartment is thick or thin battery.And the capacity of battery used can be determined accordingly, enable corresponding driver.Different battery capacities can adopt different charging currents and electricity display.
Embodiment 1-2
Same for mobile phone terminal, in the present embodiment, as shown in Figure 6, eddy current proximity switch 12 is placed on the below of corresponding battery on mainboard 2, avoids the metal devices such as SD deck and SIM card holder simultaneously; And at thick battery 30 enclosed inside ferrite 310, as shown in Figure 7, in thin battery, then do not encapsulate ferrite.
In the present embodiment, do not need in thickness two kinds of battery covers to settle sheet metal, do not need to produce eddy effect according to battery cover yet.But eddy current proximity switch is placed on the below of corresponding battery on mainboard, because in battery, itself is containing electric conductor, so after battery compartment put into by battery, the eddy effect that namely eddy current proximity switch can produce according to battery, perceives putting into of battery.In order to distinguish the battery of two types, in the present embodiment, in the encapsulation of thick battery, wrapping into one deck ferrite, and there is no ferrite in thin battery.Because ferrite has the effect intercepting magnetic field, therefore almost can offset the eddy effect of thick battery.Like this, after mobile phone power-on, directly can distinguish thickness two kinds of batteries.This scheme does not need to cover battery cover can make detection according to eddy effect, relatively simpler.
Embodiment two
In the present embodiment, be adopt Hall element in conjunction with the induction part in battery, realize the detection and Identification of different capabilities battery.
Hall element is a kind of magnetic field sensor made according to Hall effect, the integrated sensor be made up of Hall element and its accessory circuit.Hall effect passes to control electric current I at wafer two ends, and be the uniform magnetic field of B at the vertical direction applying magnetic induction density of thin slice, then, on the direction perpendicular to electric current and magnetic field, be the Hall voltage of UH by generation electric potential difference.Hall element is divided into lienar for Hall element and Hall switch sensor two kinds.Lienar for Hall element is made up of Hall element, linear amplifier and emitter follower, and it exports analog quantity, output voltage and applied field strengths linear.Lienar for hall device is mainly used in the measurement of some physical quantitys, such as: current measurement and displacement measurement.Hall switch sensor is by voltage stabilizer, Hall element, differential amplifier, and this schmitt trigger and output stage composition, it exports digital quantity.When additional magnetic induction density exceedes operating point, transducers output low-level, when magnetic induction density drops to below operating point, sensor output level is constant, and when will drop to point of release, sensor ability is high level by low level transition always.Delayed between operating point and point of release makes switch motion more reliable.Therefore, Hall switch sensor can be used for proximity switch, revolution and vehicle door status display etc.
Thus, the present embodiment provides a kind of battery identification scheme of electronic equipment, specifically comprises:
Hall element is set in described electronic equipment, and magnetic induction part is set in described first capacity batteries, and when described first capacity batteries is in installation site, described magnetic induction part is in the induction zone of described Hall element;
When described first capacity batteries is installed in described electronic equipment, described Hall element senses that described magnetic induction part is close, then export the control signal for identifying described first capacity batteries.
Further, described Hall element is arranged on the mainboard of described electronic equipment;
Corresponding described Hall element place on the battery cover that described magnetic induction part is arranged on described first capacity batteries.
Further, described magnetic induction part comprises magnet, and the magnetic pole of described magnet is vertical with the sensitive surface of described Hall element.
Further, the output terminal of described Hall element is connected to a processor,
When described first capacity batteries is installed in described electronic equipment, described Hall element senses that described magnetic induction part is close, to this processor output low level signal; This processor is according to the described low level signal received, and identifying what install in described electronic equipment is described first capacity batteries;
And when the second capacity batteries not arranging magnetic induction part is installed in described electronic equipment, described Hall element induction is close less than magnetic induction part, therefore export high level signal to this processor; This processor is according to the described high level signal received, and identifying what install in described electronic equipment is described second capacity batteries.
Be specifically described below in conjunction with the embodiment of accompanying drawing to the present embodiment.
As shown in Figure 1, Hall element 12 is placed on the mainboard 2 of terminal device.As shown in Figure 8, the output terminal of Hall element can be connected to interrupt pin or the universaling I/O port of processor.In the middle of electronic equipment start process, by judging the state of this interrupt pin or universaling I/O port, determining the capacity of battery used, enabling corresponding driver.Wherein, different battery capacities mainly can have influence on charging current and electricity display.
As shown in Figure 9, above the corresponding Hall element 12 of the battery cover 31 of thick battery, magnet 312 is placed at place.The magnetic pole of this magnet 312 must ensure that the sensitive surface with hall device is vertical, ensures after battery cover 31 closes, the changes of magnetic field that Hall element 12 can be experienced, and can cutting magnetic line.
In addition, as shown in Figure 10, for avoiding interference the induction of the magnetic line of force, on mobile phone battery cover, above corresponding Hall element 12, place can establish an opening 201.
It should be noted that magnetic device of having tried not near this Hall element 12, and the induction zone of this Hall element 12 is vertical with the polarity of the magnet 312 on battery cover 31.If magnetic pole is parallel with the sensitive surface of Hall element 12, even if after battery cover closes, the changes of magnetic field that Hall element 12 still can not be experienced, therefore sensor cannot export corresponding control signal.
If battery cover is provided with magnet, then when battery cover closes, magnet is near Hall element, and Hall element is subject to changes of magnetic field, and cutting magnetic line, then the output signal of Hall element will become low level from high level.If battery cover does not arrange magnet, when battery cover closes, because Hall element does not sense changes of magnetic field, then the output pin of Hall element will keep high level.The low and high level that processor exports according to Hall element, can identify the battery of respective type.
It should be noted that, be that example is described for the battery of thick battery and thin battery two kinds of different capabilities in above-described embodiment, but should understand, the present invention program is not limited to the different situation of cell thickness, such as when the battery of different capabilities has identical thickness, adopt the present invention program can identify equally.In addition, the present invention program, except mobile phone terminal, can be applied to other any electronic equipments using rechargeable battery capable of circulation equally.
Embodiment three
In the present embodiment, be adopt electro-optical pickoff in conjunction with the induction part in battery, realize the detection and Identification of different capabilities battery.
Particularly, be that different photoinduction media is set respectively on the battery of different capabilities, and electro-optical pickoff is set in the position of correspondence described photoinduction medium;
When battery is installed in battery compartment, electro-optical pickoff, according to the mistiming of transmitting and receiving to light signal, exports corresponding control signal;
According to the different control signal that electro-optical pickoff exports, identify the battery of different capabilities.
Wherein, the battery of described different capabilities can have two kinds: normal capacity battery (thin battery) and high capacity cell (thick battery);
Or, more kinds of capacity can also be had, and by arranging different photoinduction media on the battery cover/or battery body of different capabilities, to make the battery of each capacity all different from other batteries to the reflecting properties of light signal, then electro-optical pickoff can judge the battery of different capabilities according to the different time difference sending and receive signal, thus can realize the object identifying different capabilities battery.
Further, described photoinduction medium can be made up of the photoinduction material on described battery cover/or battery body; Or also can be made up of coating, the photoinduction material of paste layer on described battery cover or battery body.
Wherein, described photoinduction material comprises: monox, silicon nitride, aluminium foil, silver, copper etc.
As shown in figure 11, the output terminal of electro-optical pickoff is connected to primary processor.In the present embodiment, the position of photo-electric proximity switch on corresponding mainboard on the battery cover of thick battery, photoinduction medium can be set by the mode of coating, paste layer, or (different colours is also not quite alike for the ability of reflection ray to the material of relevant position battery cover and/or color, the reflection potential of light colour is strong, dark colour receptivity is strong) carry out special processing, make it have the ability to radiative diffuse reflection or mirror reflection.On the battery cover of thin battery, on corresponding mainboard, the position of photo-electric proximity switch then arranges photoinduction medium utilizing emitted light to absorption function, or special processing is carried out to the material of relevant position battery cover and/or color, makes it have absorption function to utilizing emitted light.
As shown in Figure 1, the mainboard 2 of electronic equipment arranges electro-optical pickoff 12; Meanwhile, as shown in figure 12, on battery cover 10, photoinduction medium 101 is placed in the place of corresponding electro-optical pickoff 12, and this photoinduction medium 101 can be reflecting medium or absorbing medium.
Due to electro-optical pickoff be utilize the transmitting light intensity of LED object near time produce reflection principle, therefore, need the light that LED is launched can arrive to identify battery cover on battery cover, the light reflected from battery cover also can enter the receiving position of electro-optical pickoff.
Like this, if battery cover corresponding photo-electric proximity transducer part can produce diffuse reflection or mirror reflection to utilizing emitted light, when battery cover closes, sensor can pass to primary processor range information, if this distance is within predetermined scope, then the type judging this battery cover and the battery size (thick battery or thin battery) matched; If battery cover corresponding photo-electric proximity transducer part can not produce diffuse reflection or mirror reflection to utilizing emitted light, when battery cover closes, sensor can pass to the invalid range information of primary processor one, then the type judging this battery cover and the battery size (thin battery or thick battery) matched.
Preferably, as shown in figure 13, on the back cover of electronic equipment, the top of corresponding electro-optical pickoff 12 is provided with light inlet window 102, and the light signal that electro-optical pickoff 12 transmits and receives is by forming loop between this light inlet window 102 and photoinduction medium.
In addition, when designing, utilizing emitted light issuable diffraction in equipment must be reduced as far as possible, ensureing as far as possible in the stroke of light signal not by the interference of other devices (especially light signal being had to the components/devices of the characteristic absorbed and reflect); In addition, also need to consider radiative emission angle, such as, the light launched and induction medium face had better not be vertical, because likely make transmitting and receiving loop overlap like this, and are unfavorable for sensor Received signal strength.But emission angle also should not be too large, otherwise can have an impact to the effect of sensor.
Embodiment four
In the present embodiment, be the battery adopting capacitive transducer induction different-thickness, realize the detection and Identification of different capabilities battery.
Specifically can adopt following scheme: on the mainboard of electronic equipment, arrange capacitive transducer near battery place, capacitive transducer is connected with metering circuit; When the battery of different-thickness is installed in electronic equipment, metering circuit, according to the capacitance increase in the described capacitive transducer detected, exports different magnitudes of voltage; The battery of the different-thickness installed in electronic equipment is gone out according to the different magnitude of voltage identifiable design of metering circuit output.
As known, capacitive transducer is a kind of sensor tested mechanical quantity being converted to capacitance variations.As shown in figure 14, its ultimate principle is the change measured change being converted to sensing element electric capacity, then converts the change of electric capacity to electric signal output through metering circuit.From the angle of energy conversion, capacitive transducer is passive transducer, carries out amplifying and processing after needing to convert surveyed mechanical quantity to voltage or electric current.Displacement of the lines in mechanical quantity, angular displacement, interval, distance, thickness, stretching, compression, expansion, distortion etc. have the amount of close ties invariably with length; This tittle is all again carry out by length or lenth ratio the amount measured, and the mutual relationship of its measuring method is also very close.In addition, there is due to capacitance type sensor the features such as test specification is wide, highly sensitive, dynamic response fast, good stability, therefore, quite slow in the change of some mechanical quantities, and under the minimum condition of variation range, be comparatively suitable for adopting capacitance type sensor to detect.
Particularly, as shown in figure 15, in the present embodiment, the mainboard 2 of mobile phone terminal back cover 1 places capacitive transducer 12 near the position of battery 20, such as, capacitive transducer 12 is arranged to the thickness face facing to battery 20.After battery 20 is put into, capacitive transducer 12 can experience pressure change, and the thickness of the different battery pressure be applied on capacitive transducer is different, and capacitive transducer can distinguish the pressure reduction that thin and thick battery produces completely.Therefore, capacitance increase (capacitance namely changed) is converted to voltage by its metering circuit.
Particularly, capacitive transducer can be arranged on the position facing to described battery side, and the height of capacitive transducer is higher than the maximum height (also namely thin battery thickness face can not cover capacitive transducer completely) of the battery of minimum thickness, like this, when the battery of different-thickness is installed in battery cavities, the battery lateralarea that capacitive transducer senses can be different, thus produce different capacitance increase.
Wherein, the design of battery cavities need consider dodging capacitive transducer.Such as, when putting into battery, as long as capacitive transducer senses that battery is just passable, and can not be interfered with by other structural member.
In addition, due to capacitance in capacitive transducer and capacitance variations value all very small, therefore, need to detect this small capacitance increment by means of metering circuit, and convert thereof into the voltage becoming single-valued function relation with it.
As shown in Figure 3, during capacitive transducer work, capacitance variations value exports corresponding voltage by metering circuit conversion.Like this, when battery loads after in battery cavities, battery is close to capacitive transducer, and pressure change experienced by capacitive transducer, and namely the output signal of its metering circuit occurs change in voltage.Wherein, when only there being the battery of two kinds of thickness, namely when thick battery and thin battery, due to the different-thickness that thick, thin battery have, its pressure produced is also by difference, and the voltage of output has dividing of height, and the height according to magnitude of voltage can judge used battery types.A kind of simple implementation is, can be judged that output voltage is as high level or low level, and then judge the battery of different-thickness by the threshold voltage set.
Meanwhile, the output terminal of metering circuit can be connected to interrupt pin or the universaling I/O port of primary processor.In electronic equipment start process, by judging the state of this interrupt pin or universaling I/O port, determining the capacity of battery used, enabling corresponding driver, select charging current and the electricity display of different battery capacities.
Further, the present invention program can also realize the battery identifying more kinds of different-thickness in electronic equipment: after battery cavities put into by the battery of different-thickness, the area of the battery side that capacitive transducer senses is different, such as, after small cell is put into, 1/3rd of capacitive transducer can be blocked; After medium size battery is put into, 1/2nd of capacitive transducer can be blocked; After large size battery is put into, 2/3rds of capacitive transducer can be blocked.The cell area sensed due to capacitive transducer is different, and the capacitance increase of generation is also different, and thus exportable different signal value (as magnitude of voltage), according to different signal value, can identify the battery of different-thickness.
As shown in figure 17, the concrete composition of metering circuit mainly comprises: frequency-modulated generator, limiter, frequency discriminator and amplifier.Wherein, capacitive transducer is as the part in alternator resonant loop.When input quantity causes electric capacity to change, the oscillation frequency of oscillator just changes; Frequency-modulated generator and limiter are used for change capacitance increase being converted to frequency, and the change of frequency can be converted to the change of amplitude by frequency discriminator, amplifier for amplifying amplitude signal so that processor judges low and high level.
These are only preferred case study on implementation of the present invention; be not limited to the present invention; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art can make various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the present invention.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
Claims (17)
1. a battery check device, is characterized in that, is applied to electronic equipment, and described pick-up unit comprises sensor in described electronic equipment and processor;
Described sensor is used for the different increment sizes sensed when being in place according to different capabilities battery, exports corresponding control signal respectively to described processor;
The described control signal that described processor exports according to described sensor, identifies the battery of the different capabilities installed in described electronic equipment.
2. device as claimed in claim 1, is characterized in that,
Described sensor comprises: eddy-current transducer, Hall element, electro-optical pickoff or capacitive transducer.
3. device as claimed in claim 2, is characterized in that,
Described sensor sensing to increment size comprise: current increment, voltage increment, optical signal launch and time of reception are poor, capacitance increase.
4. the device as described in claim 1,2 or 3, is characterized in that,
The described control signal that described sensor exports comprises: cell thickness signal, the distance signal of battery range sensor, level signal.
5. a battery, is applied to electronic equipment, it is characterized in that,
Described battery has the induction part suitable with the sensor in described electronic equipment, and when being in place to make described battery, described sensor according to the increment size sensed, can detect described battery.
6. battery as claimed in claim 5, is characterized in that,
Described induction part comprises: electric conductor, magnetic field barrier bodies, insulator, optical reflecting medium, light absorbing medium, magnetic induction part.
7. the battery as described in claim 5 or 6, is characterized in that,
Described induction part is arranged on the battery body of described battery or the outside or inside of battery cover.
8. a battery detection method, is characterized in that, described method comprises:
Induction part is set or different induction parts is set respectively in described first capacity batteries and described second capacity batteries in the one of the first capacity batteries and the second capacity batteries;
When battery is installed in battery compartment, according to the increment size that the sensor sensing in electronic equipment arrives, detect the battery of the different capabilities installed in described electronic equipment.
9. method as claimed in claim 8, is characterized in that,
The different increment sizes that described sensor senses when being in place according to different capabilities battery, export the first control signal or the second control signal respectively to processor;
Described processor, according to described first control signal received or the second control signal, identifies that what install in described electronic equipment is described first capacity batteries or the second capacity batteries.
10. method as claimed in claim 8, is characterized in that,
Described sensor is eddy-current transducer, and described induction part is be located at the electric conductor on the battery cover of described first capacity batteries, and/or is encapsulated in the magnetic field barrier bodies in the battery body of described second capacity batteries.
11. methods as claimed in claim 8, is characterized in that,
Described sensor is Hall element, described induction part be located at described first capacity batteries battery cover on the magnetic induction part at corresponding described Hall element place;
When wherein said first capacity batteries is in installation site, described magnetic induction part is in the induction zone of described Hall element.
12. methods as claimed in claim 11, is characterized in that,
Described magnetic induction part comprises magnet, and the magnetic pole of described magnet is vertical with the sensitive surface of described Hall element.
13. methods as described in claim 11 or 12, it is characterized in that, the output terminal of described Hall element is connected to a processor,
When described first capacity batteries is installed in described electronic equipment, described Hall element senses that described magnetic induction part is close, to described processor output low level signal; Described processor is according to the described low level signal received, and identifying what install in described electronic equipment is described first capacity batteries;
When the second capacity batteries not arranging magnetic induction part is installed in described electronic equipment, described Hall element induction is close less than described magnetic induction part, exports high level signal to described processor; Described processor is according to the described high level signal received, and identifying what install in described electronic equipment is described second capacity batteries.
14. methods as claimed in claim 8, is characterized in that,
Described sensor is electro-optical pickoff, and described induction part is photoinduction medium;
Wherein, described photoinduction medium comprises: light absorbing medium, optical reflecting medium.
15. methods as claimed in claim 14, is characterized in that,
On described first capacity batteries He on described second capacity batteries, light absorbing medium and optical reflecting medium are set respectively;
Or, on described first capacity batteries He on described second capacity batteries, different light absorbing mediums or different optical reflecting mediums are set respectively.
16. methods as described in claims 14 or 15, is characterized in that,
When battery is installed in battery compartment, described electro-optical pickoff utilizing emitted light signal, and according to the mistiming of transmitting and receiving to the light signal of described photoinduction dieletric reflection, export corresponding control signal;
According to the different control signal that described electro-optical pickoff exports, identify the battery of different capabilities.
17. methods as claimed in claim 9, is characterized in that,
Described first control signal and the second control signal comprise: switching signal, the distance signal of battery range sensor, level signal.
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| CN105866690B (en) * | 2016-03-28 | 2018-09-11 | 广州市香港科大霍英东研究院 | A kind of battery status detection method and system based on capacitance sensor |
| CN107643489B (en) * | 2016-07-22 | 2024-01-09 | 苏州宝时得电动工具有限公司 | Electric energy storage device, electric tool and control method thereof |
| CN107147186A (en) * | 2017-06-27 | 2017-09-08 | 东莞市长锦成电器有限公司 | A kind of portable power source charging device |
| CN112740470B (en) * | 2019-12-18 | 2024-05-14 | 深圳市大疆创新科技有限公司 | Switch structure, battery pack and electronic device |
| CN112887472A (en) * | 2021-01-25 | 2021-06-01 | 惠州Tcl移动通信有限公司 | Battery identification method, mobile terminal and computer readable storage medium |
| CN116381529B (en) * | 2023-06-05 | 2023-10-31 | 宁德时代新能源科技股份有限公司 | Battery detection device, detection method and battery detection equipment |
| CN116989720B (en) * | 2023-09-25 | 2023-11-24 | 凯多智能科技(上海)有限公司 | Sealing detection equipment for battery and working method thereof |
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