CN207882416U - Ripple determiner and accumulator ripple voltage test system - Google Patents
Ripple determiner and accumulator ripple voltage test system Download PDFInfo
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- CN207882416U CN207882416U CN201820055928.3U CN201820055928U CN207882416U CN 207882416 U CN207882416 U CN 207882416U CN 201820055928 U CN201820055928 U CN 201820055928U CN 207882416 U CN207882416 U CN 207882416U
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Abstract
The utility model provides a kind of ripple determiner and accumulator ripple voltage test system, is related to ripple voltage technical field of measurement and test, which includes：Acquisition Circuit, amplifying circuit and processing circuit, wherein Acquisition Circuit is used for collection voltages signal, and voltage signal carries the ripple voltage signal of tested accumulator；Amplifying circuit is connected with Acquisition Circuit, for receiving the collected voltage signal of Acquisition Circuit institute, and is amplified to voltage signal, is obtained amplified signal；Processing circuit is connected with amplifying circuit, is carried out separating treatment for receiving the obtained amplified signal of amplifying circuit, and to amplified signal, is obtained the ripple voltage signal of tested accumulator.The utility model alleviates accumulator due to being in for a long time under stronger ripple voltage the technical issues of premature aging.
Description
Technical field
The utility model is related to ripple voltage technical field of measurement and test, more particularly, to a kind of ripple determiner and accumulator
Ripple voltage tests system.
Background technology
The uninterruptible power supply (Uninterruptible Power System, abbreviation UPS) being connected on accumulator, to
When accumulator charges or the DC voltage of accumulator is converted to exchange output, ripple voltage can be brought to accumulator.Accumulator
On ripple voltage be actually that shallow charging and shallow discharge are carried out to accumulator, it is continuous to accumulator prolonged shallow to fill the shallow meeting of putting
Battery internal temperature is caused to get higher, so as to cause water vapour evaporation in accumulator and electrolyte is dry buys, excessively high ripple voltage
The aging of accumulator can be greatly speeded up, thus, the ripple voltage monitored in real time on accumulator can find line on accumulator early
The Strength Changes of wave voltage find reason convenient for maintenance personnel, are conducive to the maintenance of accumulator.
Clear stipulaties in IEEE1188-2005 battery service standards：It is required that the ripple voltage on monitoring accumulator, but mesh
The preceding device that do not monitored on-line to the ripple voltage on accumulator is only measured for electric power output voltage ripple
Measurement table.But uninterruptible power supply, during charging a battery, uninterruptible power supply filter circuit can be to exporting to electric power storage
The voltage in pond carries out ripple filtering, thus the ripple voltage of accumulator is often below power supply ripple voltage；In addition, micro- on accumulator
Small ripple voltage variation often means that the performance degradation of the filter circuit of uninterruptible power supply, needs to contact maintenance personal in time
Filter circuit is repaired, so ripple is measured with higher required precision, generally less than 5mV on accumulator, and power supply
The measurement accuracy of ripple voltage measurement table is relatively low, it is difficult to accomplish to detect 5mV ripple voltages below.
In conclusion lacking the device tested the ripple voltage on accumulator in the prior art, this makes many
Accumulator is under very strong ripple and can not be found in time for a long time, so as to cause accumulator premature aging.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of ripple determiners and accumulator ripple voltage to test
System, to alleviate accumulator due to being in for a long time under stronger ripple voltage the technical issues of premature aging.
In a first aspect, the utility model embodiment provides a kind of ripple determiner, including：Acquisition Circuit, amplification electricity
Road and processing circuit, wherein
The Acquisition Circuit is used for collection voltages signal, wherein the voltage signal carries the ripple of tested accumulator
Voltage signal；
The amplifying circuit is connected with the Acquisition Circuit, for receiving the collected voltage of the Acquisition Circuit institute
Signal, and the voltage signal is amplified, obtain amplified signal；
The processing circuit is connected with the amplifying circuit, for receiving the obtained amplification letter of the amplifying circuit
Number, and separating treatment is carried out to the amplified signal, obtain the ripple voltage signal of the tested accumulator.
With reference to first aspect, the utility model embodiment provides the first possible embodiment of first aspect,
In, the Acquisition Circuit includes first resistor and second resistance, wherein
The first end of the first resistor with the cathode of the tested accumulator for connecting, and the second of the second resistance
End is for the anode connection with the tested accumulator；
The second end of the first resistor is connected with the first end of the second resistance, and the both ends of the first resistor are made
For the signal output end of the voltage signal.
The possible embodiment of with reference to first aspect the first, the utility model embodiment provide the of first aspect
Two kinds of possible embodiments, wherein the amplifying circuit includes：Amplifier, wherein
The amplifier is reversed feedback amplifier；
The input terminal of the amplifier is connected with the signal output end of the voltage signal, to receive the voltage signal,
And be amplified the voltage signal, obtain the amplified signal.
Second of possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Three kinds of possible embodiments, wherein the processing circuit includes：Processor, the processor include A/D converter and filtering
Device, wherein
The input terminal of the A/D converter is connected with the output end of the amplifier, to receive the amplified signal, and will
The amplified signal carries out analog-to-digital conversion, to obtain the digital signal of the amplified signal；
The input terminal of the filter is connected with the output end of the A/D converter, described to receive the digital signal
Filter is used to filter out the voltage signal for being higher than 1kHz in the digital signal, obtains the ripple voltage signal.
The third possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Four kinds of possible embodiments, wherein further include power supply circuit, the power supply circuit includes isolated power supply, wherein
The isolated power supply is connect with the amplifier, the processor respectively, with for the amplifier and the processing
Device provides electric energy.
The 4th kind of possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Five kinds of possible embodiments, wherein further include signal output apparatus, the signal output apparatus includes photoisolator and leads to
Believe circuit, wherein
The photoisolator is connected with the output end of the filter, obtained described for receiving the filter
Ripple voltage signal；
The telecommunication circuit is connected with the photoisolator, the line received for receiving the photoisolator
Wave voltage signal.
The 5th kind of possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Six kinds of possible embodiments, wherein the telecommunication circuit includes wire communication circuit or radio communication circuit.
The 5th kind of possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Seven kinds of possible embodiments, wherein further include shell, wherein
The Acquisition Circuit, the amplifying circuit, the processing circuit, the power supply circuit and the signal output apparatus
It is encapsulated in the shell.
Second aspect, the utility model embodiment additionally provide a kind of accumulator ripple voltage test system, including：Acquisition
Ripple determiner described in probe, terminal device and first aspect, wherein
The acquisition probe is used to be connected with the positive and negative anodes for being tested accumulator, to acquire the positive and negative anodes electricity for being tested accumulator
Pressure；
The ripple determiner is connected with the acquisition probe, is used for the positive and negative pole tension based on the tested accumulator
Obtain the ripple voltage signal of the tested accumulator；
The terminal device and ripple determiner communication connection, for receiving the ripple voltage signal, and root
The ripple voltage value of the tested accumulator is obtained according to the ripple voltage signal.
In conjunction with second aspect, the utility model embodiment provides the first possible embodiment of second aspect,
In, the acquisition probe includes the first sampling line and the second sampling line, wherein
The first end of the first sampling line is connected with the first end of first resistor in the ripple determiner, and described the
The second end of one sampling line is used to connect the cathode of the tested accumulator；
The first end of the second sampling line is connected with the second end of second resistance in the ripple determiner, and described the
The second end of two sampling lines is used to connect the anode of the tested accumulator.
The utility model embodiment brings following advantageous effect：
The ripple determiner includes：Acquisition Circuit, amplifying circuit and processing circuit, wherein Acquisition Circuit is for acquiring
Voltage signal, voltage signal carry the ripple voltage signal of tested accumulator；Amplifying circuit is connected with Acquisition Circuit, for connecing
The collected voltage signal of Acquisition Circuit institute is received, and voltage signal is amplified, obtains amplified signal；Processing circuit and amplification
Circuit connects, and carries out separating treatment for receiving the obtained amplified signal of amplifying circuit, and to amplified signal, obtains tested storage
The ripple voltage signal of battery.
In the utility model embodiment, since amplifying circuit is exaggerated voltage signal, and voltage signal carries
The ripple voltage signal of tested accumulator, thus, amplifying circuit is simultaneously also exaggerated ripple voltage signal, to,
In the case that ripple voltage signal is smaller, ripple voltage signal preferably detected, and to the micro- of ripple voltage signal
Minor swing also preferably detected, and accuracy of detection is higher, to realize the accumulator ripple electricity more demanding to accuracy of detection
The detection of pressure alleviates accumulator due to being in for a long time under stronger ripple voltage the technical issues of premature aging.
Other feature and advantage of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood by implementing the utility model.The purpose of this utility model and other advantages are illustrating
Specifically noted structure is realized and is obtained in book, claims and attached drawing.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment cited below particularly, and
The appended attached drawing of cooperation, is described in detail below.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of structure diagram for ripple determiner that the utility model embodiment one provides；
Fig. 2 is a kind of circuit connection diagram for ripple determiner that the utility model embodiment one provides；
A kind of ripple determiner that Fig. 3 provides for the utility model embodiment one uses scene schematic diagram；
Fig. 4 is the structure diagram that a kind of accumulator ripple voltage that the utility model embodiment two provides tests system.
Icon：1- Acquisition Circuits；11- first resistors；12- second resistances；2- amplifying circuits；21- amplifiers；3- processing electricity
Road；31-A/D converters；32- filters；4- power supply circuits；41- isolated power supplies；5- signal output apparatus；51- Phototube Couplings
Device；52- telecommunication circuits；100- acquisition probes；101- first samples line；102- second samples line；200- terminal devices；300- lines
Wave detection device；400- is tested accumulator.
Specific implementation mode
To keep the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with attached drawing to this
The technical solution of utility model is clearly and completely described, it is clear that described embodiment is that the utility model part is real
Example is applied, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, shall fall within the protection scope of the present invention.
The uninterruptible power supply being connected on accumulator is charging a battery or the DC voltage of accumulator is converted to friendship
When stream output, ripple voltage can be brought to accumulator.
Specifically, uninterruptible power supply is during charging a battery, though the filter circuit of uninterruptible power supply can be to output
Ripple filtering is carried out to the voltage of accumulator, but ripple filtering is not thorough, certain ripple current can be exported and be applied to
On accumulator；And when the filter circuit of uninterruptible power supply is impaired, this ripple can drastically be reinforced.In addition, uninterruptible power supply exists
In the process (i.e. reversals) that the DC voltage of accumulator is converted to exchange output, ripple current and ripple electricity will produce
Stream pours in down a chimney onto accumulator, and the ripple intensity that different UPS inversions generate is different, as UPS technologies are small to high efficiency
Volume develops, and high frequency UPS constantly becomes mainstream model, and the ripple current generated is more stronger than previous type.
Excessively high ripple voltage can greatly speed up the aging of accumulator, in real time monitor accumulator on ripple voltage can and
The early Strength Changes for finding ripple voltage on accumulator, reason is found convenient for maintenance personnel, is conducive to the maintenance of accumulator.
Though there are the measurement table for electric power output voltage ripple, power supply ripple voltage measurement table measurement accuracy in the country at present
It is not high, be not suitable for measuring the ripple voltage on accumulator.Thus, lack in the prior art and the ripple voltage on accumulator is carried out
The device of test, this makes many accumulators be under very strong ripple and can not be found in time for a long time, so as to cause electric power storage
Pond premature aging.Based on this, a kind of ripple determiner and accumulator ripple voltage test that the utility model embodiment provides
System can alleviate accumulator due to being in for a long time under stronger ripple voltage the technical issues of premature aging.
Embodiment one
As shown in Figure 1, the ripple determiner includes：Acquisition Circuit 1, amplifying circuit 2 and processing circuit 3, wherein
Acquisition Circuit 1 is used for collection voltages signal, wherein voltage signal carries the ripple voltage letter of tested accumulator
Number；
Amplifying circuit 2 and Acquisition Circuit 1 connect, for receiving the 1 collected voltage signal of institute of Acquisition Circuit, and to voltage
Signal is amplified, and obtains amplified signal；
Processing circuit 3 and amplifying circuit 2 connect, and believe for receiving 2 obtained amplified signal of amplifying circuit, and to amplification
Number separating treatment is carried out, obtains the ripple voltage signal of tested accumulator.
In the utility model embodiment, since amplifying circuit 2 is exaggerated voltage signal, and voltage signal carries
There is the ripple voltage signal of tested accumulator, thus, amplifying circuit is simultaneously also exaggerated ripple voltage signal, to,
In the case where ripple voltage signal is smaller, ripple voltage signal preferably detected, and to ripple voltage signal
Minor fluctuations also preferably detected, and accuracy of detection is higher, to realize the accumulator ripple more demanding to accuracy of detection
The detection of voltage alleviates accumulator due to being in for a long time under stronger ripple voltage the technical issues of premature aging.
The voltage value of power supply generally in 300V hereinafter, ripple voltage is plus minor fluctuations voltage on the supply voltage, because
And the pressure voltage of current power supply ripple voltage measurement table at most only has 300V.But the battery pack of current many accumulators
The voltage value of DC voltage is in 600V or more, and in turn, the sum of DC voltage and ripple voltage of accumulator are also in 600V or more, institute
To be different from power supply ripple voltage measurement table, the test of accumulator ripple voltage needs detection device to have higher pressure voltage.
For this demand, in an optional embodiment of the utility model embodiment, as shown in Fig. 2, Acquisition Circuit 1 includes the first electricity
Resistance 11 and second resistance 12, wherein
The first end of first resistor 11 is used to connect with the cathode for being tested accumulator 400, and the second end of second resistance 12 is used
In the anode connection with tested accumulator 400；
The second end of first resistor 11 is connected with the first end of second resistance 12, and the both ends of first resistor 11 are as voltage
The signal output end of signal.
Specifically, first resistor 11 and second resistance 12 play the role of partial pressure, using the both ends of first resistor 11 as
The signal output end of voltage signal, voltage value is less than the output voltage of tested accumulator in voltage signal, that is, ripple determiner
Collected voltage value is less than the output voltage of tested accumulator.If also, by voltage value in voltage signal and tested accumulator
Output voltage between ratio be determined as the first ratio, the resistance ratio of first resistor 11 and second resistance 12 is determined as
Two ratios, then the first ratio and the second ratio are numerically equal, that is to say, that the first ratio determines by the second ratio,
Thus, even if the output voltage of tested accumulator is higher, the resistance between first resistor 11 and second resistance 12 can also be adjusted
Ratio is conducive to change to make the voltage value in voltage signal meet the voltage that the circuit in ripple determiner can bear
The pressure-resistant performance of kind ripple determiner.
It should be noted that due to the first ratio and the second ratio be numerically it is equal, know the second ratio with
And in the case of the voltage value in voltage signal, the output voltage of tested accumulator can be computed, thus this practicality is new
Type embodiment also ensures that the ripple voltage value of tested accumulator measures not in the pressure-resistant aspect of performance for improving ripple determiner
It is impacted.
In another optional embodiment of the utility model embodiment, as shown in Fig. 2, amplifying circuit 2 includes：Amplifier
21, wherein
Amplifier 21 is reversed feedback amplifier；
The input terminal of amplifier 21 is connected with the signal output end of voltage signal, with receiving voltage signal, and voltage is believed
It number is amplified, obtains amplified signal.
Specifically, can be first resistor 11 the circuit that is connected with the first end of second resistance 12 of second end on draw
One measurement end is tested the cathode ground connection of accumulator 400, and then, the input terminal of amplifier 21 is grounded, connects measurement end respectively, real
The purpose of existing receiving voltage signal.
In the utility model embodiment, amplifier 21 is reversed feedback amplifier, is conducive to the amplification factor relatively stablized,
The stabilization of amplification factor is conducive to be restored to obtain accurate voltage signal according to amplified signal；Amplifier 21 amplifies for negative-feedback
Device also helps reduction wave distortion, that is, the waveform for advantageously allowing the ripple voltage in voltage signal is undistorted.Thus, this
In utility model embodiment, amplifier 21 is reversed feedback amplifier so that the tested accumulator being calculated according to amplified signal
Ripple voltage have preferable accuracy.
Current power supply ripple voltage measurement table is designed for the ripple voltage that power supply exports, and electric energy is directed to
The monitoring of quality, thus mainly monitor the ripple of upper frequency (generally 1kHz or more).And accumulator is caused mainly to influence
Be 1kHz ripples below, thus, be different from power supply ripple voltage measurement table, the ripple determiner of accumulator needs to detect
Be 1kHz ripples below.
For accumulator ripple determiner detect 1kHz or less ripples demand, the utility model embodiment it is another
In a optional embodiment, as shown in Fig. 2, processing circuit 3 includes：Processor, processor include A/D converter 31 and filter
32, wherein
The input terminal of A/D converter 31 is connected with the output end of amplifier 21, to receive amplified signal, and by amplified signal
Analog-to-digital conversion is carried out, to obtain the digital signal of amplified signal；
The input terminal of filter 32 is connected with the output end of A/D converter 31, and to receive digital signal, filter 32 is used for
The voltage signal for being higher than 1kHz in digital signal is filtered out, ripple voltage signal is obtained.
Specifically, filter 32 is digital mode filter, and is low-pass filter, realizes the voltage signal to 1kHz or more
The purpose filtered out has achieved the purpose that detection causes the ripple voltage mainly influenced to accumulator.
In another optional embodiment of the utility model embodiment, as shown in Fig. 2, ripple determiner further includes supplying
Circuit 4, power supply circuit 4 include isolated power supply 41, wherein
Isolated power supply 41 is connect with amplifier 21, processor respectively, to provide electric energy for amplifier 21 and processor.
Specifically, isolated power supply 41, that is, 220V AC voltage is dropped into lower voltage using transformer, it is then whole again
The use of direct current electricity output electricity supply and use equipment is flowed into, transformer realizes decompression so that the ac voltage signal before decompression will not be to decompression
Voltage signal afterwards brings noise, thus, the use of isolated power supply 41 advantageously reduces power supply circuit 4 to accumulator ripple voltage
The harmful effect of accuracy of detection.
In another optional embodiment of the utility model embodiment, as shown in Fig. 2, ripple determiner further includes letter
Number output circuit 5, signal output apparatus 5 include photoisolator 51 and telecommunication circuit 52, wherein
Photoisolator 51 is connected with the output end of filter 32, is believed for 32 obtained ripple voltage of receiving filter
Number；
Telecommunication circuit 52 and photoisolator 51 connect, the ripple voltage letter received for receiving photoisolator 51
Number.
In the utility model embodiment, it is contemplated that tested accumulator 400 and isolated power supply 41 have higher voltage value, adopt
It ensures that the voltage of accumulator and isolated power supply 41 will not penetrate into telecommunication circuit 52 with photoisolator 51, is conducive to make line
Wave detection device has higher resistance to pressure and accurate measurement result.
In another optional embodiment of the utility model embodiment, telecommunication circuit 52 includes wire communication circuit or nothing
Line telecommunication circuit, that is, sent ripple voltage signal by wired or wireless mode.
In another optional embodiment of the utility model embodiment, with reference to Fig. 2 and Fig. 3, ripple determiner also wraps
Include shell, wherein
Acquisition Circuit 1, amplifying circuit 2, processing circuit 3, power supply circuit 4 and signal output apparatus 5 are encapsulated in shell, just
In the carrying and movement of ripple determiner.
Embodiment two
A kind of accumulator ripple voltage that the utility model embodiment provides tests system, as shown in figure 4, including：Acquisition
The ripple determiner 300 of probe 100, terminal device 200 and embodiment one, wherein
Acquisition probe 100 is used to be connected with the positive and negative anodes for being tested accumulator, to acquire the positive and negative pole tension for being tested accumulator；
Ripple determiner 300 and acquisition probe 100 connect, for the positive and negative pole tension based on tested accumulator obtain by
Survey the ripple voltage signal of accumulator；
Terminal device 200 and ripple determiner 300 communicate to connect, for receiving ripple voltage signal, and according to ripple
Voltage signal obtains the ripple voltage value of tested accumulator.
It should be noted that the positive and negative pole tension of tested accumulator, that is, the output voltage of tested accumulator.
Specifically, terminal device 200 obtains the specific original of the ripple voltage value of tested accumulator according to ripple voltage signal
Reason is that have to the gatherer process, amplification process and the processing procedure that are tested 400 output voltage of accumulator with ripple determiner 300
Close, that is, if by ripple determiner 300 to being tested the acquisition of 400 output voltage of accumulator, amplification, processing procedure be known as pair
It is tested the direct transform of 400 ripple voltage of accumulator, then terminal device 200 carries out the transform operation corresponding to direct transform, obtains
400 ripple voltage of tested accumulator.
For example, the ripple voltage signal of tested accumulator is carried in the voltage signal of gatherer process acquisition, if acquiring
The ripple voltage signal of journey acquisition is the 1/X for acquiring 400 ripple voltage of tested accumulator, then terminal device 200 is carried out
Inverse transformation is then that the ripple voltage signal of tested accumulator 400 is amplified X times, obtains the ripple voltage of tested accumulator 400.Again
For example, 400 ripple voltage of tested accumulator is amplified X times by amplification process, then terminal device 200 is amplified X times of inverse transformation,
Reduce X times.The numerical value of original signal converted after direct transform after numerical value, it is original in order to be obtained by the numerical value after converting
The numerical value of signal carries out corresponding transform operation referring in particular to direct transform, this belongs to common knowledge, and it is new to be not belonging to this practicality
The invention content of type, herein without detailed description.
In the utility model embodiment, the Acquisition Circuit collection voltages signal in ripple determiner 300, wherein voltage
Signal carries the ripple voltage signal of tested accumulator 400；Amplifying circuit in ripple determiner 300 to voltage signal into
Row amplification obtains amplified signal；Processing circuit in ripple determiner 300 carries out separating treatment to amplified signal, is tested
The ripple voltage signal of accumulator.Since amplifying circuit is exaggerated voltage signal, and voltage signal carries tested storage
The ripple voltage signal of battery 400, thus, amplifying circuit is simultaneously also exaggerated ripple voltage signal, in ripple
In the case that voltage signal is smaller, ripple voltage signal preferably detected, and to the small wave of ripple voltage signal
Dynamic also preferably to detected, accuracy of detection is higher, to realize the accumulator ripple voltage more demanding to accuracy of detection
Detection alleviates accumulator due to being in for a long time under stronger ripple voltage the technical issues of premature aging.
In the utility model embodiment, ripple determiner 300 and acquisition probe 100 connect, for being stored based on tested
The positive and negative pole tension of battery obtains the ripple voltage signal of tested accumulator,
In one optional embodiment of the utility model embodiment, with reference to Fig. 3, acquisition probe 100 includes the first sampling
Line 101 and second samples line 102, wherein
The first end of first sampling line 101 is connected with the first end of first resistor in ripple determiner 300, the first sampling
The second end of line 101 is used to connect the cathode of tested accumulator 400；
The first end of second sampling line 102 is connected with the second end of second resistance in ripple determiner 300, the second sampling
The second end of line 102 is used to connect the anode of tested accumulator 400.
In the utility model embodiment, the first sampling line 101 and second samples line 102 and is being directly connected to tested accumulator just
True to measure the ripple for being tested and being born on accumulator on cathode, accurate performance is preferable.
Specifically, the electricity of the ripple voltage on accumulator 400 is tested using accumulator ripple voltage test systematic survey
When pressure value, the frequency that 1MHz may be used in the processor in ripple determiner 300 carries out the amplified signal that amplifier exports
The voltage value of multiple ripples in sampling every time is also calculated in sampling, terminal device 200.The target in sampling every time can be taken
Then voltage value seeks ripple voltage of the average value of continuous several times target voltage values as current measured tested accumulator
Value, wherein target voltage values are the maximum value of the voltage value of multiple ripples in sampling every time.Seeking continuous 20 target voltage values
Average value in the case of, the measuring accuracy of the ripple voltage value of tested accumulator has reached 2mV.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description
It with the specific work process of device, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
In addition, in the description of the utility model embodiment unless specifically defined or limited otherwise, term " installation ",
" connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, can also be electrical connection；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned term with concrete condition
Concrete meaning in the present invention.
It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for description purposes only, and are not understood to indicate or imply relative importance.
Finally it should be noted that：Embodiment described above, only specific embodiment of the present utility model, to illustrate this
The technical solution of utility model, rather than its limitations, the scope of protection of the utility model is not limited thereto, although with reference to aforementioned
The utility model is described in detail in embodiment, it will be understood by those of ordinary skill in the art that：It is any to be familiar with this skill
The technical staff in art field within the technical scope disclosed by the utility model, still can be to the skill recorded in previous embodiment
Art scheme modify or can readily occur in variation or equivalent replacement of some of the technical features；And these modifications,
Variation is replaced, the spirit and model of the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution
It encloses, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model is answered described is wanted with right
Subject to the protection domain asked.
Claims (10)
1. a kind of ripple determiner, which is characterized in that including：Acquisition Circuit, amplifying circuit and processing circuit, wherein
The Acquisition Circuit is used for collection voltages signal, wherein the voltage signal carries the ripple voltage of tested accumulator
Signal；
The amplifying circuit is connected with the Acquisition Circuit, for receiving the collected voltage letter of the Acquisition Circuit institute
Number, and the voltage signal is amplified, obtain amplified signal；
The processing circuit is connected with the amplifying circuit, for receiving the obtained amplified signal of the amplifying circuit,
And separating treatment is carried out to the amplified signal, obtain the ripple voltage signal of the tested accumulator.
2. the apparatus according to claim 1, which is characterized in that the Acquisition Circuit includes first resistor and second resistance,
Wherein,
The first end of the first resistor for being connected with the cathode of the tested accumulator, use by the second end of the second resistance
In the anode connection with the tested accumulator；
The second end of the first resistor is connected with the first end of the second resistance, and the both ends of the first resistor are as institute
State the signal output end of voltage signal.
3. the apparatus of claim 2, which is characterized in that the amplifying circuit includes：Amplifier, wherein
The amplifier is reversed feedback amplifier；
The input terminal of the amplifier is connected with the signal output end of the voltage signal, to receive the voltage signal, and will
The voltage signal is amplified, and obtains the amplified signal.
4. device according to claim 3, which is characterized in that the processing circuit includes：Processor, the processor packet
Include A/D converter and filter, wherein
The input terminal of the A/D converter is connected with the output end of the amplifier, to receive the amplified signal, and will be described
Amplified signal carries out analog-to-digital conversion, to obtain the digital signal of the amplified signal；
The input terminal of the filter is connected with the output end of the A/D converter, to receive the digital signal, the filtering
Device is used to filter out the voltage signal for being higher than 1kHz in the digital signal, obtains the ripple voltage signal.
5. device according to claim 4, which is characterized in that further include power supply circuit, the power supply circuit includes isolation
Power supply, wherein
The isolated power supply is connect with the amplifier, the processor respectively, to be carried for the amplifier and the processor
For electric energy.
6. device according to claim 5, which is characterized in that further include signal output apparatus, the signal output apparatus
Including photoisolator and telecommunication circuit, wherein
The photoisolator is connected with the output end of the filter, for receiving the obtained ripple of the filter
Voltage signal；
The telecommunication circuit is connected with the photoisolator, the ripple electricity received for receiving the photoisolator
Press signal.
7. device according to claim 6, which is characterized in that the telecommunication circuit includes wire communication circuit or channel radio
Believe circuit.
8. device according to claim 6, which is characterized in that further include shell, wherein
The Acquisition Circuit, the amplifying circuit, the processing circuit, the power supply circuit and signal output apparatus encapsulation
In the shell.
9. a kind of accumulator ripple voltage tests system, which is characterized in that including acquisition probe, terminal device and claim
Ripple determiner described in any one of 1-8, wherein
The acquisition probe is used to be connected with the positive and negative anodes for being tested accumulator, to acquire the positive and negative pole tension for being tested accumulator；
The ripple determiner is connected with the acquisition probe, is obtained for the positive and negative pole tension based on the tested accumulator
The ripple voltage signal of the tested accumulator；
The terminal device and ripple determiner communication connection, for receiving the ripple voltage signal, and according to institute
It states ripple voltage signal and obtains the ripple voltage value of the tested accumulator.
10. system according to claim 9, which is characterized in that the acquisition probe includes that the first sampling line and second is adopted
Line-transect, wherein
The first end of the first sampling line is connected with the first end of first resistor in the ripple determiner, and described first adopts
The second end of line-transect is used to connect the cathode of the tested accumulator；
The first end of the second sampling line is connected with the second end of second resistance in the ripple determiner, and described second adopts
The second end of line-transect is used to connect the anode of the tested accumulator.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444530A (en) * | 2018-12-13 | 2019-03-08 | 浙江阿海珐配电自动化有限公司 | The method of sampling and device of AC signal |
| CN110208583A (en) * | 2019-05-06 | 2019-09-06 | 福建星云电子股份有限公司 | A kind of ripple current generating device based on battery core charge and discharge |
-
2018
- 2018-01-12 CN CN201820055928.3U patent/CN207882416U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444530A (en) * | 2018-12-13 | 2019-03-08 | 浙江阿海珐配电自动化有限公司 | The method of sampling and device of AC signal |
| CN110208583A (en) * | 2019-05-06 | 2019-09-06 | 福建星云电子股份有限公司 | A kind of ripple current generating device based on battery core charge and discharge |
| CN110208583B (en) * | 2019-05-06 | 2022-02-18 | 福建星云电子股份有限公司 | Ripple current generating device based on battery core charging and discharging |
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