CN201352255Y

CN201352255Y - Battery analyzer

Info

Publication number: CN201352255Y
Application number: CNU2008200729685U
Authority: CN
Inventors: 刘玲明
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-24
Filing date: 2008-12-24
Publication date: 2009-11-25
Anticipated expiration: 2018-12-24

Abstract

The utility model relates to a battery analyzer, belonging to the electromechanical field. The battery analyzer comprises an internal resistance measurement device, an analog multiplication device, a filter and a signal converter; the internal resistance measurement device imposes frequency onto the input end of a battery and obtains a voltage responding signal at the output end of the battery; the analog multiplication device is connected to the internal resistance measurement device, and a sinusoidal signal and an amplification coefficient are preset and multiplied with the voltage responding signal; the filter is connected to the analog multiplication device and then operates the multiplied signal; and the signal converter is connected to the filter and transmits the data which is obtained by operation to a single chip processor which carries out division operation so as to obtain the internal resistance of the battery. The battery analyzer has the advantages of being capable of simultaneously detecting the quantity of electricity, the internal resistance, the voltage value and the cold starting value so as to immediately replace the battery with insufficient quantity of electricity; and the battery analyzer is convenient to use and has strong practicality.

Description

The battery analyser

Technical field

The utility model relates to electrical category, particularly a kind of battery analyser.

Background technology

As everyone knows, flourish along with industrial technology, make human life phase to facility, so that auto industry is fast progressive especially now, but automobile-used storage battery is a strength member that can't omit and can directly influence vehicle launch, the storage battery that is used at present automobile on the market all has only about 2 years serviceable life, so all necessary self-contained battery connecting line of driver, does not have the electricity vehicle that caused to start to avoid automobile-used storage battery; Moreover desire must additionally utilize different instruments to achieve the goal, but this kind mode is very inconvenient during to battery measurement voltage, resistance or cold start value, and its precision can't reach user's demand, need be improved.

The utility model content

The purpose of this utility model is to provide a kind of battery analyser, has solved automobile storage battery commonly used and must additionally utilize different apparatus measures voltage, resistance or cold start value, and is very inconvenient, and problem such as precision difference.

The technical solution of the utility model is: comprise that internal resistance measuring equipment, analogue multiplication device, wave filter constitute, wherein the internal resistance measuring equipment applies the input end of a frequency to accumulator, and obtains voltage at the output terminal of this accumulator and respond signal; The analogue multiplication device, this analogue multiplication device is connected to the internal resistance measuring equipment, and is preset with sinusoidal signal and amplification coefficient, responds signal by this sinusoidal signal and amplification coefficient and voltage and multiplies each other; Wave filter, this wave filter is connected the analogue multiplication device, and the signal after will multiplying each other carries out computing again; Signal converter, this signal converter is connected wave filter and the data that its computing is learnt is sent to the single-wafer processing machine, and carry out division arithmetic to obtain accumulator internal resistance by the single-wafer processing machine, by this can be correctly and critically calculate dump energy in the accumulator, to replace the accumulator of electric weight deficiency immediately;

Wherein, wave filter is a low-pass filter;

Signal converter is analogy/digital converter.

Advantage of the present utility model is: can not only measure the electric weight number of accumulator, and can record internal storage battery resistance value, magnitude of voltage and cold start value accurately simultaneously, need not utilize different instruments to detect respectively more respectively, and easy to use, practical.

Description of drawings:

Fig. 1 is the circuit diagram of accumulator;

Fig. 2 is operation workflow figure of the present utility model;

Fig. 3 is a user mode synoptic diagram of the present utility model.

Embodiment:

Shown in accompanying drawing 1 and accompanying drawing 2, the utility model is a degree of charge of having been represented battery by the female resistance R Ω in the Europe of accumulator, but for simplified measurement only separates pure resistance R (R is made of R Ω, R1, R2) usually from equiva lent impedance, linear between R and the R Ω, so available R represents the battery charge degree indirectly.

Battery analyser 1 is made of internal resistance measuring equipment 10, analogue multiplication device 12, wave filter 14 (low-pass filter) and signal converter 16 (analogy/digital converter), wherein internal resistance measuring equipment 10 applies the input end 20 of a frequency to accumulator 2, and obtain voltage at the output terminal 22 of accumulator 2 and respond signal, its operational formula is:

υ ₂(ωt)＝B _cos(ωt+θ)

The analogue multiplication device 12 that is connected with internal resistance measuring equipment 10 is preset with sinusoidal signal and amplification coefficient, and wherein the sinusoidal signal operational formula is:

υ ₁(ωt)＝A _cosωt

Responding signal by sinusoidal signal and amplification coefficient and voltage multiplies each other, signal after will multiplying each other via wave filter 14 again calculates again, the data of its computing being learnt via signal converter 16 are sent to single-wafer processing machine 18, and carry out division arithmetic to obtain accumulator internal resistance, by this can be correctly and critically calculate dump energy in the accumulator, to replace the accumulator of electric weight deficiency immediately.

As shown in Figure 3, when electricity is measured the remaining electric power of internal storage battery when user's desire, the electric power connection line 3 that only needs will be installed on the battery analyser 1 is folded in input end 20, and apply a frequency with similar sonar detection principle, obtain voltage by output terminal 22 again and respond signal, electric weight remaining in the accumulator can be calculated by aforementioned process, the internal storage battery resistance value can be recorded accurately, magnitude of voltage and cold start value simultaneously.

Claims

1, a kind of battery analyser is characterized in that: comprise the internal resistance measuring equipment, this internal resistance measuring equipment applies the input end of a frequency to accumulator, and obtains voltage at the output terminal of this accumulator and respond signal; The analogue multiplication device, this analogue multiplication device is connected to the internal resistance measuring equipment, and is preset with sinusoidal signal and amplification coefficient, responds signal by this sinusoidal signal and amplification coefficient and voltage and multiplies each other; Wave filter, this wave filter is connected the analogue multiplication device, and the signal after will multiplying each other carries out computing again; Signal converter, this signal converter are connected wave filter and the data that its computing is learnt are sent to the single-wafer processing machine, and carry out division arithmetic to obtain accumulator internal resistance by the single-wafer processing machine.

2, battery analyser according to claim 1 is characterized in that: described wave filter is a low-pass filter.

3, battery analyser according to claim 1 is characterized in that: described signal converter is analogy/digital converter.