CN201680166U

CN201680166U - Circuit with battery life indication, flashlight and portable electronic device

Info

Publication number: CN201680166U
Application number: CN2009201321362U
Authority: CN
Inventors: 于琪
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-05-20
Filing date: 2009-05-20
Publication date: 2010-12-22
Anticipated expiration: 2019-05-20

Abstract

The utility model discloses a portable electronic device of electrified pond life-span instruction, include: a memory for storing battery life information including battery life and voltage output information of the battery over time; a controller coupled to the memory, the controller receiving battery life information from the memory and operating as a countdown timer to accumulate an amount of time the battery is powered; a voltage detection circuit connected to the memory, the circuit detecting the output voltage of the battery when the battery is powered and providing voltage output information to the controller; the controller judges a first remaining battery life of the battery by comparing the accumulation time with the battery life; determining a second remaining battery life by comparing the supply voltage information of the voltage detection circuit with the voltage output information of the battery over time; judging the smaller value of the first remaining battery life and the second remaining battery life; and a display connected to the controller and receiving instructions therefrom for displaying the lesser of the first remaining battery life and the second remaining battery life.

Description

Circuit, flashlight and the portable electron device of the indication of charged pool life-span

Technical field

The utility model relates to portable electron device, relates in particular to a kind of circuit, flashlight and portable electron device of charged pool life-span indication.

Background technology

Portable electron device is equipped with non-rechargeable battery (disposable battery) usually as the flashlight product, and people need determine remaining service life of this non-rechargeable battery and show relevant information on this mancarried device.Various non-rechargeable batteries and rechargeable battery are fit to be applied on the mancarried device, and these batteries have different life times, and, have different flash-over characteristics at its life time.Similarly, for the mancarried device of live load electric current, these non-rechargeable batteries also have different life times and different flash-over characteristics with rechargeable battery.Therefore, the residual life information that shows rechargeable battery or non-rechargeable battery on portable product exactly is the challenge of design aspect always.In addition, guarantee the major part of battery, or all to be fully utilized before discarded be current requirements of green environmental protection in all utilizable energy sources.

Many portable products as flashlight, have been provided with the battery life indicating gage, as U.S. Pat 4876632, and US4962347, US5684404, and US7295129.Yet, still be necessary this series products is done more accurate improvement.

The utility model content

The purpose of this utility model is to do further improvement at above-mentioned portable product, proposes a kind of circuit, flashlight and portable electron device of charged pool life-span indication.This flashlight or portable electron device have the battery life deixis, can show the battery life of non-rechargeable battery and rechargeable battery remainder.

The circuit of the charged pool life-span indication that the utility model proposes comprises:

The holder of one storage battery life information, battery life information comprise battery life and the voltage output information of this battery in whole service time;

One voltage detecting circuit, the output voltage of monitoring battery, and voltage output information offered controller;

One controller, as a count-down device job, the accumulative total battery provides the time quantum of electric energy to light-emitting component, and relatively obtains remaining battery service life according to battery life information and voltage output information;

And a display that is connected and receives its instruction with controller, be used for showing remaining battery life.

The portable electron device of the charged pool life-span indication that the utility model proposes comprises:

The holder of one storage battery life information, this battery information comprise battery life and the voltage output information of this battery in whole service time;

One voltage detecting circuit that is connected with memory, this circuit detect the output voltage of battery when powered battery, and voltage output information is offered controller;

One controller that is connected with memory, this controller receive from the battery life information of memory with from the voltage output information of voltage detecting circuit, and as count-down device work, and the battery powered time quantum of accumulative total relatively obtains the residual life of battery;

And a display that is connected and receives its instruction with controller, be used to show remaining battery life.

In a preferred embodiment of the present utility model, also comprise a current monitoring circuit, preset electric current and measured change current class on the more a plurality of battery life discharge curves of this circuit, and it is finely tuned, for light-emitting device provides stable electric current.

The utility model has also proposed a kind of flashlight of charged pool life-span indication, comprising:

Battery-powered light-emitting component;

The circuit that is connected with light-emitting component, this circuit comprises: the holder of a storage batteries life information, this battery life information comprise battery life and in the voltage output information of the whole time battery that electric energy is provided to light-emitting component; One voltage detecting circuit, the output voltage of monitoring battery, and voltage output information offered controller; One controller, as a count-down device job, the accumulative total battery provides the time quantum of electric energy to light-emitting component, and relatively obtains remaining power service life according to battery life information and voltage output information; And a display that is connected and receives its instruction with controller, be used for showing remaining battery life.

Described controller at first accumulates battery service time and battery life relatively, determined for the first remaining power life-span, then the supply voltage of voltage detecting circuit and the voltage output information of whole power-on time were relatively determined for the second remaining power life-span, judge the smaller value in the first remaining power life-span and the second remaining power life-span again;

Described circuit also comprises a display that is connected and receives its instruction with controller, is used for showing the first remaining power life-span and the smaller value of second remaining power in the life-span.

Described display with hour and the form of dividing show the first remaining power life-span and the smaller value of second remaining power in the life-span.

Described display is with the percentage of different color pilot cell residual lifes.Multiple colors such as it is green, yellow, orange and red that described color comprises.

Be provided with the temperature inductor that is connected with controller in the described flashlight, this temperature inductor is used for measuring battery temperature, and controller receives the temperature information that temperature inductor transmits, and adjusts for the first remaining power life-span according to this information.

When second battery life during less than first battery life, described controller reduced to for the second remaining power life-span with the first remaining power life-span.

When the second remaining power life-span greater than first remaining power during life-span, described controller does not increase by the first remaining power life-span.

Described flashlight also comprises: one is connected the key switch that is arranged on the housing with controller, this switch makes light-emitting component carry out three kinds of shinny states, comprise first, second and the 3rd shinny state, the output of light-emitting component progressively strengthens from first shinny state to the three shinny states.

Described flashlight also comprises: the current monitoring circuit of a sealing, this circuit provides stable electric current for light-emitting device, and the current monitoring circuit of this sealing compares the preset electric current of a plurality of battery life discharge curves and the current class of the variation that measures and finely tune.

At different shinny states, battery has different battery lifes, first battery life is greater than second battery life, second battery life is greater than the 3rd battery life, battery life information comprises first battery life, second battery life and the 3rd battery life, and controller determined for the first remaining power life-span according to bright state, first battery life, second battery life and the 3rd battery life of light-emitting component.

Described battery has first voltage output of corresponding first kind of shinny state time; Second voltage output of corresponding second kind of shinny state time; The tertiary voltage output of corresponding the third shinny state time; Controller is exported and was judged for the second remaining power life-span according to the luminance of light-emitting component, first voltage output relative with the time, second voltage output relative with the time, the tertiary voltage relative with the time.

Compared with prior art, the utility model can in time be grasped the service time of battery, makes things convenient for the use of electronic installation.

Description of drawings

Below in conjunction with drawings and Examples the utility model is described in detail, wherein:

Figure 1A and Figure 1B are the side views of the utility model one embodiment;

Fig. 2 is a circuit diagram of the present utility model;

Fig. 3 is battery life figure, and voltage is imported corresponding battery service time;

Fig. 4 is the battery life form, shows that different batteries has the different life-spans.

The specific embodiment

Figure 1A and Figure 1B show that the utility model is applied to the embodiment of flashlight.This flashlight 100 comprises protecgulum 105, bonnet 110, battery case 115 and switch enclosure 120.Be placed with one group of lamp source 210 (as shown in Figure 2) in the protecgulum 105, this light source can be one group of LED lamp.Being placed with a Battery pack in the battery case 115, can be non-rechargeable battery or rechargeable battery.Bonnet 110 can be removed so that take out and put into battery.

Switch enclosure 120 includes the key switch 125 and the display 130 that are used for turning on and turning off the lamp source, and this display can adopt the display of LCD or other low-energy-consumption.The effect of display 130 is the remaining power life-spans that show battery in the battery case, so that we understand the working time of this product remainder.Display can adopt with the time and cellular show remaining battery life; Also can show remaining battery life with different colors, for example, green shows the life-span of battery remainder more than 80%, and the yellow remaining life-span of demonstration battery is at 20%-80%, the remaining life-span of orange demonstration battery, the remaining life-span of red display battery was at 0%-10% at 10%-20%.Display can be provided with one backlight, be used for different color on the bright display.Drop to 5% when following when the remaining life-span of battery, meeting backlight is extinguished.

Fig. 2 is circuit theory diagrams embodiment illustrated in fig. 1.This circuit comprises: lamp source 210, key switch 125, display 130, voltage detecting circuit 212, current monitoring circuit 215 and the controller 205 that is connected with the lamp source.This embodiment middle controller uses Sonix SN8P2714.

Voltage detecting circuit 212 is connected with controller 205, comprises resistance R 17, R10 and capacitor C 4.Voltage detecting circuit 212 is used for monitoring the voltage by R17, R10 and C4.

Current monitoring circuit 215 monitorings then, provide a certain proportion of voltage to controller by the electric current in lamp source 210.Controller provides a suitable pressure drop corresponding to different battery life time (as battery life 1, battery life 2, battery life 3, the back can go through) by current detection circuit 215.This current monitoring circuit can adopt the control circuit of a sealing, and is connected with controller, is used for providing stable electric current to the lamp source.

Voltage detecting circuit and current monitoring circuit can be changed and export to the A/D rectifier, and the A/D rectifier is the part of controller.The voltage of controller receives and further is discussed below:

Controller includes a storage internal, is used to store brief introduction explanation and computer code, and the life information that stores arbitrary Battery pack.Memory also can be arranged with the controller branch.Battery life information comprises a Battery pack life time.For example, holder can be the battery storage battery life figure of arbitrary manufacturer, battery life form and temperature effect.Battery life figure and form can be compressed into specific code and be stored in the memory.

In the utility model, key switch 125 can be provided with the different conditions of lamp, comprising: low bright, in bright, highlighted and blink states.To highlighted state, electric current progressively increases from low bright state.Controller can be monitored the luminance state that key switch removes to control lamp.

Fig. 3 shows battery life figure.This battery life figure comprises one group of cell voltage output and time relation of using.For example, battery life figure comprises the battery life of three different discharge rates.Curve 305 is low bright state, curve 310 be in bright state, curve 315 is highlighted and blink states.As we can see from the figure, bright and highlighted state during the battery life president of low bright state crosses, similarly, in the battery life president of bright state cross highlighted state.Highlighted battery life with blink states is the same.

From battery life figure also cell voltage output time corresponding as can be seen, the pressure drop situation of different conditions may be different.Can see on curve 305, curve 310 and the curve 315 that from figure the different speed of employed battery is the corresponding different time of battery pressure drop.As can see from Figure 4, total battery life of low bright state is about 7.5 hours, in about 5.5 hours of total battery life of bright state, about 4 hours of highlighted and battery life blink states, we can see that these battery lifes are well-regulated.What Fig. 3 showed is the life diagram of one group of alkaline battery or similar battery, the battery life of representing a certain specific battery manufacturers to produce.

Fig. 4 is the battery life table, comprises one or more groups battery life information.Fig. 3 shows that battery life a bit drops to 0 battery life from certain.This information may be the battery of multiple battery kind and/or different manufacturers.For example, the alkaline battery of first manufacturer may be represented in first hurdle, and the high-energy alkaline battery of first manufacturer may be represented in second hurdle, and third column may be represented the lithium battery of first manufacturer, the 4th hurdle may be the alkaline battery of first manufacturer, or the like.Each hurdle that shows in Fig. 4 table all comprise a Battery pack low bright, in the battery life of bright, highlighted, blink states.For example, the upper end on first hurdle represents that the battery life of this Battery pack when low bright state is 7.5 hours, intermediate representation in battery life during bright state be 5.5 hours, the bottom represents that this Battery pack is 4 hours at the battery life of highlighted state and blink states.

Showing in the battery life form that different light states has different battery lifes, may be single lamp state, as highlighted state.According to this kind of flashlight, the battery life table can be stored in the holder of establishing in the controller, or (not shown) in the external memory.If the battery life table comprises single lamp state battery life information.For example, the battery life information that controller can increase store this a single state by amplifier (for example, the information of highlighted state), may be other lamp state of producing of a constant, the function of time or alternate manner battery life information (as low bright state and in bright state).

When opening flashlight, controller begins countdown, and when turning off flashlight, controller can stop countdown.Count-down device can not reset in the flashlight down periods.Part during the multiple operation that count-down device can be to use controller to go to demonstrate is described.Controller can be with built-in clock or external clock, and for example, a quartz clock of installing on circuit board is as count-down clock.Countdown may be to go to accumulate the total time that flashlight uses by increase in 1/10 second or similar mode.Controller can be accumulated flashlight in the total time that each state uses, and the time that further obtains remaining state according to a state that has used or a plurality of state accumulated time.Single value may be represented flashlight in a single state or employed time of a plurality of state, and is for example, highlighted.If flashlight left 1 hour at low bright state, in bright state opened 25 minutes, controller can be carried out these information and judge the service time of flashlight at highlighted state then.That is to say, if flashlight opened 1 hour at low bright state, in bright state opened 25 minutes, these times can be accumulated calculate highlighted state then may can also be with 1.1 hours.Controller can be according to the information (as alkalescence, manufacturer, battery life form) of battery in the memory, judges the battery life of remainder when this Battery pack is supplied with highlighted state.Battery life remaining in the above-mentioned example may be 2.9 hours.

In the foregoing description, voltage detecting circuit 212 can be judged the output voltage of this Battery pack, and this output voltage is changed A/D rectifier to controller.The A/D rectifier can be assessed voltage value.Controller can obtain battery information (as the alkaline battery of first manufacturer) once more from the battery life figure that stores.Controller is stated the further magnitude of voltage of comparative voltage numerical value and lamp state, produces default electric current then.For example, if lamp is driven to low bright state, controller can comparative voltage numerical value and the voltage of curve 305 remove to judge the battery life of this Battery pack remainder.Controller can produce behind the accurate new voltage value again according to per 1/10 second that describes before relatively 1 time.

Controller can also be judged the battery life of the battery life of the remainder that count-down device whether calculates less than the remainder of voltage measurement.May be to judge once in per 1/10 second, for example, controller control display goes to show the minimizing of surplus little battery life.That is to say, if the battery life that timer calculates less than the battery life of voltage measurement, display can show the battery life that timer calculates.Otherwise if the battery life that the surplus following battery life of voltage measurement calculates less than timer, display can show the battery life of the remainder of voltage measurement.Remaining battery life can with hour and the form of dividing show.

The time of the utility model countdown can adjust upward the measured value of judging from the output voltage of battery pack according to the battery life of remainder.For example, be the battery life that calculates less than timer if controller is judged the voltage tester of battery, timer can adjust upward accumulated time and reflect low remaining battery life.

Following description can reflect the unexpected step-down of cell voltage, and for example, if flashlight is moved on to cool environment from warm environment, the time of accumulation may be adjusted because of employed battery influence in the flashlight.Put into used battery, its battery life usually can be shorter than the battery life of putting into new similar battery.When being reentered into battery each time, the time of countdown can reset-to-zero.For example, controller whether can judge carry out battery altering (as, if from flashlight, shift out battery), then the time of countdown when battery is loaded onto again, can reset (as, whether battery is installed in the flashlight).

Voltage with battery is output as the basis, and the time of count-down device accumulation can not be reduced, and that is to say, the battery life time that timer calculates the remainder of judging can not be increased.For example, if cell voltage sometime when power supply turn off reopen after bounce-back rise, the increase of battery life " very " is not represented in bounce-back usually.Similarly, if the temperature of battery rises between the operating period, voltage output raises, yet this voltage raises and also do not represent the increase of battery life " very ".Therefore, the bounce-back of voltage can not be used to the time of count-down device adjustment accumulation.

Can comprise that one or more devices select battery types or manufacturer to the user.For example, flashlight can comprise that a wire jumper goes pilot cell type and/or battery manufacturers.Otherwise controller can be controlled display and show battery types and/or the manufacturer's information that puts in.One device can also be set on flashlight, be used to receive the user and go input to select battery types and/or manufacturer for use, key is set such as one group, connect touch panel to display by demonstration, or similar fashion.These can help the user to select battery variety and manufacturer.

The circuit that the utility model uses can also comprise one or more temperature inductors.For example, the battery temperature inductor can be placed in the battery case and with controller and be connected.The battery temperature inductor can monitor this Battery pack at the battery temperature of flashlight between the operating period, and transmission information is again given controller.The variations in temperature of battery may influence battery life.Controller can be adjusted count-down device according to the temperature information of battery that monitors and storage and calculate the battery life time.

The utility model is not limited to be used in the flashlight, can use in the multiple portable electron device that power supply is provided by battery.

Abovely the utility model is specifically described, but those skilled in the art can make numerous variations or variation to these embodiments these changes and changing within the scope that should fall into the utility model protection in conjunction with better embodiment.

Claims

1. A flashlight with battery life indication, characterized in that it comprises:

Lighting elements powered by batteries;

A circuit connected to the light-emitting element, the circuit comprising: a memory for storing battery life information, the battery life information including battery life and voltage output information of the battery throughout the time of supplying power to the light-emitting element; a voltage detection circuit, monitoring the battery output voltage, and provide voltage output information to the controller; a controller, working as a countdown timer, accumulates the amount of time the battery provides power to the light-emitting element, and compares the battery life information with the voltage output information to obtain the remaining battery life ; and a display connected to and commanded by the controller to show remaining battery life.

2. The flashlight of claim 1, wherein the display shows the remaining battery life in hours and minutes.

3. The flashlight of claim 1, wherein the display indicates the percentage of remaining battery life in different colors.

4. The flashlight of claim 3, wherein said colors include green, yellow, orange, and red.

5. The flashlight according to claim 1, further comprising a temperature sensor connected to the controller for measuring the temperature of the battery.

6. The flashlight according to claim 1, further comprising: a key switch connected to the controller and arranged on the casing, the switch enables the light-emitting element to perform three lighting states, including first, second and In the third lighting state, the output of the light emitting element gradually increases from the first lighting state to the third lighting state.

7. The flashlight of claim 1, further comprising: a closed current monitoring circuit for providing a stable current to the light emitting device.

8. A circuit with battery life indication, characterized in that it comprises:

A memory for storing battery life information, the battery life information including battery life and voltage output information of the battery throughout the use time;

A voltage detection circuit, which monitors the output voltage of the battery and provides voltage output information to the controller;

A controller, working as a countdown timer, accumulating the amount of time the battery provides power to the light-emitting element, and comparing the battery life information with the voltage output information to obtain the remaining life of the battery;

and a display connected to and commanded by the controller to show remaining battery life.

9. The circuit of claim 8, wherein said display shows remaining battery life in hours and minutes.

10. The circuit of claim 8, wherein the display indicates the percentage of remaining battery life in different colors.

11. The circuit of claim 10, wherein said colors include green, yellow, orange, and red.

12. The circuit according to claim 8, further comprising a temperature sensor connected to the controller for detecting the temperature of the battery.

13. A portable electronic device with battery life indication, characterized in that it comprises:

a memory for storing battery life information, the battery information including battery life and voltage output information of the battery throughout the usage time;

A voltage detection circuit connected to the memory, the circuit detects the output voltage of the battery when the battery supplies power, and provides the voltage output information to the controller;

A controller connected to the memory, the controller receives the battery life information from the memory and the voltage output information from the voltage detection circuit, and works as a countdown timer, accumulating the time of battery power supply, and comparing to obtain the remaining life of the battery;

14. The portable electronic device as claimed in claim 13, further comprising a current monitoring circuit for supplying a stable current to the light emitting device.

15. The portable electronic device as claimed in claim 13, wherein said display shows remaining battery life in hours and minutes.

16. The portable electronic device as claimed in claim 13, wherein the display indicates the percentage of remaining battery life in different colors.