CN101064437A

CN101064437A - Method and apparatus for consuming energy of the electronic device when the electric connection is unable to be broken off

Info

Publication number: CN101064437A
Application number: CN 200610077058
Authority: CN
Inventors: 杜本权
Original assignee: BenQ Corp
Current assignee: BenQ Corp
Priority date: 2006-04-26
Filing date: 2006-04-26
Publication date: 2007-10-31

Abstract

When a battery is charged in a electronic device, if the charging current is too high and charging voltage is too high, the electronic device will send command to interrupt charging, if the charging hardware of the electronic device is fault, the charging will not be interrupted normally, the electronic device will enter power consumption condition to consume the power energy, so danger of over charging can be avoided.

Description

Electrical connection consumes the method and the device of the electric energy of this electronic installation in the time of can't interrupting

Technical field

Strain process when the invention provides a kind of over-charging of battery, the battery that especially refers to a kind of electronic installation and power supply be electrically connected the method that consumes the electric energy of this electronic installation can't normal interruption the time.

Background technology

Portable electronic equipment as mobile phone, uses chargeable battery as power supply mostly.This type of electronic installation can an external charger with to the battery charge in the electronic installation, in general, the safety when guaranteeing to charge; can add the protective circuit of some hardware; when charging makes a mistake, can cut off charging automatically, to avoid the matters of aggravation of battery explosion.

If the charging hardware generation problem that mobile phone is inside and outside and can't the normal interruption charging, mobile phone can send some warning signals, with caution user mobile phone charging generation problem.Yet these warning signals may not be certain and can exist constantly, for example, several then just the stopping down of light flash of panel are glimmered.When warning signal caused the Panel light optical flare, the user may be very far away because of the position of charging from mobile phone, and can't discover this warning signal.Perhaps, whether the charging of just checking mobile phone after the user may stop in the flicker of warning signal has unusually, but because of the flicker of warning signal stops, it is normal that the user takes for charging, and further do not go to confirm, under the feasible wrong state that charged, charger still continues therefore to cause the possibility of battery explosion still very high to the battery charge in the mobile phone.

Summary of the invention

The battery that the invention provides a kind of electronic installation and power supply be electrically connected the method that consumes the electric energy of this electronic installation can't normal interruption the time, to solve the above problems.

The battery that the present invention discloses a kind of electronic installation and power supply be electrically connected the method that consumes the electric energy of this electronic installation can't normal interruption the time, when it comprises battery when an electronic installation by power source charges to a predetermined state, send and interrupt the instruction that this battery is electrically connected with this power supply, send interrupt this battery and instruction that this power supply is electrically connected after, whether detect this battery continues to be electrically connected with this power supply, and, then make this electronic installation enter the power consumption state to consume the electric energy of this electronic installation if detecting this battery continues to be electrically connected with this power supply.

Description of drawings

Fig. 1 is the functional block diagram of mobile phone of the present invention.

Fig. 2 is the flow chart of the charge condition of control chart 1 mobile phone of the present invention.

The main element symbol description

10 mobile phones, 12 Power Management Unit

14 fundamental frequency administrative units, 16 second checkout gears

18 first checkout gears, 20 batteries

22 external power sources, 31 vibrators

32 sound intensifiers, 33 LCD backlight modules

34 light-emitting diodes, 35 Organic Light Emitting Diodes

36 display panels, 37 bluetooth modules

38 digital still cameras, 39 power amplifiers

The 201-205 step

R resistance

Embodiment

In order to solve in the prior art, the danger that may cause when battery charge makes a mistake, the present invention start the consuming components of mobile phone can't the normal interruption charging time, to consume the electric energy that continues the mobile phone charging.

See also Fig. 1; Fig. 1 is the functional block diagram of mobile phone 10 of the present invention.Mobile phone 10 comprises a battery 20, one first checkout gear 18, one second checkout gear 16, a Power Management Unit 12 and a fundamental frequency administrative unit 14.Mobile phone 10 required electric energy are provided by battery 20, Power Management Unit 12 is used for distributing electric energy, fundamental frequency administrative unit 14 is coupled in Power Management Unit 14, is used for controlling 12 pairs of mobile phone inner member power supplies of Power Management Unit, as vibrator 31 is powered.

Because the voltage in when charging or electric current is excessive and the temperature of battery 20 itself is crossed with voltage and mostly may be caused some potential danger, whether the charged state that therefore needs detection battery 20 is in safe range.When 20 chargings of the battery in 22 pairs of mobile phones 10 of external power source, detect the charged state of battery 20 by first checkout gear 18.

For instance, whether the time of detecting battery 20 chargings has reached a scheduled time, if there is damage battery 20 inside and can't charges to 20 maximum power that can store of battery, to cause external power source 22 constantly to battery 20 chargings, but in fact battery 20 can't store more electric energy again.These too much electric energy may damage to some extent to battery or mobile phone, therefore by detecting the length in charging interval, and the injury that can avoid charging for a long time battery or mobile phone are caused, or avoid some potential danger to take place.

Moreover, to learn whether charging current and voltage exceed safe range,, all may cause the danger of battery 20 blasts by the voltage on the measuring resistance R because charging current and voltage are excessive.In general, in the different charging stages, the acceptable charging current of rechargeable battery is about the 30-500 milliampere and does not wait, and the electric current of being imported during external power source 22 power supply is about 700 milliamperes, input current can be reduced within the safe range by the circuit that is electrically connected between external power source 22 and the battery 20.

Owing to be provided with a temperature-sensitive sticker and the integrated circuit that detects battery behavior in the general rechargeable battery 20, therefore first checkout gear 18 can learn whether the temperature whether voltage of battery 20 has reached 20 maximum voltages that can store of battery or battery 20 has reached a predetermined temperature, and is too high or voltage is excessive that battery is damaged to some extent to avoid the temperature of battery 20 own.

If first checkout gear 18 detects arbitrary charged state when making a mistake, fundamental frequency administrative unit 14 can be sent and interrupt the instruction that battery 20 is electrically connected with external power source 22, charges with cut-out.After sending the instruction of interrupting charging, whether second checkout gear 16 then detects battery 20 continues to be electrically connected with external power source 22.Similarly, by the voltage on the measuring resistance R with the electric current of learning the resistance R place why second checkout gear 16.If the electric current at resistance R place is zero ampere or is lower than acceptable scope, such as 5 milliamperes, expression battery 20 has cut off with external power source 22 really and has been electrically connected.If second checkout gear, 16 detected electric currents are greater than acceptable current range, the circuit generation problem that expression is electrically connected makes external power source 22 still continue battery 20 chargings, because the circuit that is electrically connected can't normal operation, input current 700 milliamperes may may cause battery explosion or damage directly to battery 20 chargings.The consuming components that this moment, fundamental frequency administrative unit 14 started in the mobile phones 10 is to consume powerful input current.

And fundamental frequency administrative unit 14 can start as the vibrator among Fig. 1 31, and its required electric current is about 100 milliamperes.Perhaps start the sound intensifier 32 (audio amplifier) of mobile phone 10, as loud speaker (speaker), buzzer (buzzer), earphone (headset), its required electric current is about 200 milliamperes; LCD backlight module 33 (liquid crystal display backlight module), its required electric current is about 20 milliamperes; Light-emitting diode 34 (keypad LED), its required electric current is about 40 milliamperes; Organic Light Emitting Diode 35 (organic light-emitting diode, OLED), its required electric current is about 20 milliamperes; Display panels 36 (liquid crystal display, LCD), its required electric current is about 40 milliamperes; Bluetooth module 37 (bluetooth module) or digital still camera 38 (digital still camera, DSC), its required electric current is about 50 milliamperes; Power amplifier (power amplifier) 39, its required current range is about 100 milliampere to 1000 milliamperes.

If mobile phone 10 is in the pattern of power saving at present, then fundamental frequency administrative unit 14 can be closed battery saving mode, to consume the electric current of about 50 to 120 milliamperes.Therefore when the inside and outside charging hardware generation problem of mobile phone 10, in the time of can't the normal interruption charging, mobile phone 10 of the present invention can start consuming components automatically, to reduce the danger that over-charging of battery was caused.

See also Fig. 2; Fig. 2 controls the flow chart of the charge condition of mobile phone 10 for the present invention.Step is as follows:

Step 201: whether first checkout gear 18 detects charged state normal, if charged state is normal, then enters step 203; Otherwise, enter step 202.

Step 202: fundamental frequency administrative unit 14 is sent and is interrupted the instruction that battery 20 is electrically connected with external power source 22.Whether second checkout gear 16 detects battery 20 continues to be electrically connected with external power source 22, cuts off if be electrically connected, and enters step 204; Otherwise, enter step 205.

Step 203: battery 20 continues charging, enters step 201.

Step 204: charging finishes.

Step 205: fundamental frequency administrative unit 14 starts the consuming components of mobile phone 10.

Method and apparatus provided by the present invention is except being applied to also to can be applicable to other electronic installations in the mobile phone 10, as digital camera, personal digital assistant or digital camera.In addition, when mobile phone 10 of the present invention detects can't normal interruption during charging, also can send warning signal, to remind the user.For example, utilize buzzer to send the modes such as light of voice warning or scintillator panel.

Compared to prior art, the invention provides the strain process that a kind of charging makes a mistake, it can more effectively reduce battery explosion or other dangerous possibilities.

The above only is the preferred embodiments of the present invention, and all equivalences of carrying out according to claim of the present invention change and revise, and all should belong to covering scope of the present invention.

Claims

The battery of an electronic installation and power supply be electrically connected the method that consumes the electric energy of this electronic installation can't normal interruption the time, it comprises:

When the battery of an electronic installation during, send and interrupt the instruction that this battery is electrically connected with this power supply by power source charges to a predetermined state;

Send interrupt this battery and instruction that this power supply is electrically connected after, detect that this battery is whether lasting to be electrically connected with this power supply; And

Continue to be electrically connected if detect this battery, then make this electronic installation enter the power consumption state to consume the electric energy of this electronic installation with this power supply.
2. the method for claim 1, wherein this predetermined state has reached a predetermined value for the voltage of the battery of this electronic installation.
3. the method for claim 1, wherein this predetermined state has reached a predetermined temperature for the temperature of the battery of this electronic installation.
4. the method for claim 1, wherein this predetermined state has reached a predetermined value for the charging current of this power supply.
5. the method for claim 1, wherein this predetermined state has reached a predetermined value for the charging voltage of this power supply.
6. the method for claim 1, wherein this predetermined state has reached a scheduled time for the time to the battery charge of this electronic installation.
7. the method for claim 1, wherein this predetermined state is this power supply to the charging current of the battery of this electronic installation greater than a predetermined value.
8. the method for claim 1 wherein makes this electronic installation enter the power consumption state and comprises startup one loud speaker, a buzzer, an earphone, a LCD backlight module, a light-emitting diode, an Organic Light Emitting Diode, a display panels, a bluetooth module, a vibrator, a digital still camera or a power amplifier.
9. the method for claim 1 wherein makes this electronic installation enter the power consumption state and comprises the battery saving mode of closing this electronic installation.
10. the method for claim 1, wherein this electronic installation is a mobile phone, digital camera, personal digital assistant or digital camera.
11. the method for claim 1, its be included in addition send interrupt this battery and instruction that this power supply is electrically connected after, send alarm signal.
12. one kind can be when being electrically connected of battery and power supply can't normal interruption the electronic installation of consumed power, it comprises:

One battery is used for providing electric energy to this electronic installation;

Whether one first checkout gear is used for detecting this battery by this power source charges to one predetermined state;

One second checkout gear, be used for send interrupt this battery and instruction that this power supply is electrically connected after, detect that this battery is whether lasting to be electrically connected with this power supply;

One Power Management Unit is used for distributing electric energy; And

One fundamental frequency administrative unit is coupled in this Power Management Unit, is used for controlling the element power supply of this Power Management Unit to this electronic installation.
13. electronic installation as claimed in claim 12, it is a mobile phone, digital camera, personal digital assistant or digital camera.