CN2300217Y

CN2300217Y - Mobile telephone cell capable of indicating charged and discharged times

Info

Publication number: CN2300217Y
Application number: CN97220191U
Authority: CN
Inventors: 曲利敏
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-07-11
Filing date: 1997-07-11
Publication date: 1998-12-09
Anticipated expiration: 2007-07-11

Abstract

The utility model relates to a mobile telephone cell capable of indicating charged and discharged times. The utility model is characterized in that a case of the mobile telephone cell is provided with an LCD display. A counter is arranged in the case of the mobile telephone cell for recording charge and discharge times, composed of an SCM, an electric erasable and writable memory, a voltage discriminator and a voltage stabilizer. An input terminal of the voltage stabilizer is connected with a cell pack, and an output terminal is connected with the SCM, the voltage discriminator and an LCD circuit. An input terminal of the voltage discriminator is connected with the cell pack, and an output terminal thereof is connected with the SCM. An output terminal of the SCM is connected with the erasable and writable memory. The utility model can display finished charged and discharged times on the cell. Thus, the quality of the cell can be correctly valued.

Description

Can show the battery of mobile telephone that has discharged and recharged number of times

The utility model relates to a kind of rechargeable battery of mobile phone, a kind of especially battery of mobile telephone that discharges and recharges number of times that shows.

Present universal day by day along with mobile phone, the sales volume of battery of mobile telephone grows with each passing day, but the battery of mobile telephone of various fake and forged commodity also floods market simultaneously.It both grievous injury user's interests, also grievous injury the interests of legal producer, businessman.As everyone knows, an important quality of battery of mobile telephone is repeatedly access times, can discharge and recharge number of times, but this launch not also in the market.

The purpose of this utility model is a kind of battery of mobile telephone that discharges and recharges number of times that shows of developing at above deficiency, this battery is to add one to have discharged and recharged time counter in the shell of battery of mobile telephone, additional liquid crystal digital display on the shell, this product can show the completed number of times that discharges and recharges of this battery on battery, be convenient to the user quality of this battery is made correct evaluation.

The utility model is achieved in that the feature that can show the battery of mobile telephone that has discharged and recharged number of times is: liquid crystal digital display 1 is housed on battery of mobile telephone shell 2, the counter that record has discharged and recharged number of times is housed in battery of mobile telephone shell 2, and it is made up of single-chip microcomputer 5, electrically-erasable memory 4, voltage checker 6 and pressurizer 3; The input termination battery pack 8 of pressurizer 3, output connects single-chip microcomputer 5, voltage checker 6 and liquid crystal digital display circuit 7, the input termination battery pack 8 of voltage checker 6, the output of voltage checker 6 connects single-chip microcomputer 5, and the output of single-chip microcomputer 5 connects electrically-erasable memory 4.

The utility model can be achieved in that also the output of voltage checker 6 meets input pin RA2, the RA3 of single-chip microcomputer 5, pin RA0, the RA1 of single-chip microcomputer 5 and pin SCL, the SDA of electrically-erasable memory 4 link, and the pin RB0-RB7 of single-chip microcomputer 5 and the field pin and the common pin of LCD 7 link.

Good effect of the present utility model is: this product characteristics is additional counter that has discharged and recharged number of times in the shell of battery of mobile telephone, an additional liquid crystal digital display on shell, it can the accurate recording battery of mobile telephone the actual number of times that discharges and recharges, for producer, businessman the user is made product quality a kind of means that provide is provided.Help increasing the sales volume of product, prevent that counterfeit and shoddy goods from sneaking into market.

Description of drawings.

Fig. 1 is a contour structures schematic diagram of the present utility model.

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

Fig. 3 is circuit theory diagrams of the present utility model.

Wherein

1, liquid crystal digital display 2, battery of mobile telephone shell 3, pressurizer

4, electrically-erasable memory 5, single-chip microcomputer 6, voltage checker

7, liquid crystal digital display circuit 8, battery pack

The utility model is described in further detail below in conjunction with accompanying drawing.

Shown in Fig. 2,3.Single-chip microcomputer 5 is the IC1 integrated circuit of PIC16C54, and it has RA0-RA3, RB0-RB7 totally 12 two-way I/O mouth lines, and R1, C1 are the clock oscillation circuit of IC1.Electrically-erasable memory 4 is the IC2 integrated circuit of 24C01, and it is to be used for preserving having discharged and recharged number of times.Integrated circuit (IC) 1 is passed through RA0, RA1 to integrated circuit (IC) 2 access datas.Pressurizer 3 is the IC3 three terminal regulator of 78L05, and it and capacitor C 2 formed voltage stabilizing circuits, and the input voltage VDD of battery pack is stabilized on the VCC (5V).Liquid crystal digital display 1 is the LCD integrated circuit of single " 8 " word liquid crystal digital display YN01KX39, and it is the RB0-RB7 driving by integrated circuit (IC) 1.The differentiation of cell voltage height is to discharging and recharging the key that number of times accurately measures, the excursion of the voltage VDD of battery of mobile telephone is 4.8-7.5V, and voltage is different again when standby and use, and therefore, the utility model adopts high and low threshold voltage method to differentiate the cell voltage state.It is 7.1V that this product is provided with high voltage threshold values VH, and it is 6.0V that low-voltage threshold values VL is set, during differentiation, when battery of mobile telephone voltage, is differentiated this battery and discharged and recharged once when uprising one time by low.By triode T1, resistance R 3, R7, R8 form low-voltage threshold values testing circuit in the voltage checker 6; By triode T2, the high voltage threshold values testing circuit that resistance R 4, R5, R6 form.In order to save cost, this product only uses a liquid crystal digital display 1, display mode is set for showing hundred, ten of discharging and recharging number of times, individual position each 1 second, blanking 3 seconds, recirculation successively.If discharge and recharge number of times less than 10 times, then hundred, tens word demonstration " 0 "; If discharge and recharge number of times less than 100 times, then hundred bit digital show " 0 ".

Operation principle of the present utility model as shown in Figure 3.When battery was sufficient, cell voltage was greater than 7.1 o'clock, and voltage checker 6 output high level are to single-chip microcomputer 5, and single-chip microcomputer 5 is that high state information writes in the electrically-erasable memory 4 with cell voltage.Along with the use of mobile phone, cell voltage descends gradually, when cell voltage during less than 6.0V, has write down battery in the electrically-erasable memory 4 by the discharge process of high voltage to low-voltage.When battery was recharged, cell voltage progressively raise; When cell voltage during again greater than 7.1V, single-chip microcomputer 5 judges that batteries are recharged once, and at this moment, it will read the number of times that discharges and recharges that has originally write down from electrically-erasable memory 4, its value is added 1 after, again it is deposited in the electrically-erasable memory 4.Simultaneously, the new numerical value that discharges and recharges number of times will be shown.Because the electrically-erasable memory has the not obliterated data that cuts off the power supply, therefore, even battery in use by accidental short circuit, write down in the electrically-erasable memory 4 discharge and recharge number of times and can not lose, can shadow to the accuracy of follow-up counting of charging/discharging.

Claims

1, a kind of battery of mobile telephone that discharges and recharges number of times that shows, it is characterized in that: liquid crystal digital display 1 is housed on battery of mobile telephone shell 2, the counter that record has discharged and recharged number of times is housed in battery of mobile telephone shell 2, and it is made up of single-chip microcomputer 5, electrically-erasable memory 4, voltage checker 6 and pressurizer 3; The input termination battery pack 8 of pressurizer 3, output connects single-chip microcomputer 5, voltage checker 6 and liquid crystal digital display circuit 7, the input termination battery pack 8 of voltage checker 6, the output of voltage checker 6 connects single-chip microcomputer 5, and the output of single-chip microcomputer 5 connects electrically-erasable memory 4.

2, the battery of mobile telephone that discharges and recharges number of times that shows according to claim 1, it is characterized in that: the output of voltage checker 6 meets input pin RA2, the RA3 of single-chip microcomputer 5, pin RA0, the RA1 of single-chip microcomputer 5 and pin SCL, the SDA of electrically-erasable memory 4 link, and the pin RB0-RB7 of single-chip microcomputer 5 and the field pin and the common pin of LCD 7 link.