CN106646264A - Battery discharge tester - Google Patents

Battery discharge tester Download PDF

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Publication number
CN106646264A
CN106646264A CN201710041615.2A CN201710041615A CN106646264A CN 106646264 A CN106646264 A CN 106646264A CN 201710041615 A CN201710041615 A CN 201710041615A CN 106646264 A CN106646264 A CN 106646264A
Authority
CN
China
Prior art keywords
unit
battery discharge
mesuring battary
detector
discharge tester
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710041615.2A
Other languages
Chinese (zh)
Inventor
杨雪芬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Kimurath Electromechanical Co Ltd
Original Assignee
Shenzhen Kimurath Electromechanical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Kimurath Electromechanical Co Ltd filed Critical Shenzhen Kimurath Electromechanical Co Ltd
Priority to CN201710041615.2A priority Critical patent/CN106646264A/en
Publication of CN106646264A publication Critical patent/CN106646264A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/392Determining battery ageing or deterioration, e.g. state of health

Abstract

The invention relates to a battery discharge tester which comprises an interface port, a loading unit, a detection unit, a control unit, a storage unit and an output unit, wherein the interface port is used for connecting anode and cathode of a to-be-tested battery; the loading unit is used for consuming the electric energy of the to-be-tested battery; the detection unit is used for detecting a voltage and a discharge current of the to-be-tested battery and transmitting detection values to the control unit, the storage unit and the output unit; the control unit is used for comparing the detection value of the discharge current with a preset value and adjusting the discharge current of the to-be-tested battery according to a comparison result; the storage unit is used for storing test data of the detection unit; the output unit is used for outputting the test data of the detection unit. The battery discharge tester provided by the invention has the advantages of simple structure, easy manufacturing and low cost.

Description

Battery discharge tester
Technical field
The invention belongs to tester technical field, is a kind of battery discharge tester specifically.
Background technology
Lithium battery is a class by lithium metal or lithium alloy be negative material, using the battery of non-aqueous electrolytic solution.Lithium electricity Pond is broadly divided into two classes:Lithium metal battery and lithium ion battery.Wherein, lithium ion battery does not contain the lithium of metallic state, and It can be charging.
With widely using for the digital product such as product such as mobile phone, notebook computer, lithium ion battery is with excellent performance It is used widely in this kind of product, and progressively to other product applications development, is becoming the master of lithium battery at present Miscarriage product.
Lithium battery memory-less effect, thus cycle-index is more, long service life.At the same time, lithium battery there is also Putting, for example, can not occur overcharging or crossing in defect, and otherwise will greatly damage the service life of lithium battery.
In order to ensure the quality of lithium battery, needs carry out strict burn-in test before lithium battery dispatches from the factory to it, to guarantee Discharge performance of the lithium battery under aging condition is up to standard.Traditional burn-in test is surveyed mainly by means of comprehensive measuring instrument Measuring appratus price is high, and to the manufacturing cost of lithium battery very big burden is caused.
The content of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of battery discharge tester, with high sexual valence Than.
The purpose of the present invention is achieved through the following technical solutions:
A kind of battery discharge tester, including it is interface end, load unit, detector unit, control unit, memory cell, defeated Go out unit:
The interface end is used to be connected with the both positive and negative polarity of mesuring battary;
The load unit is used to consume the electric energy of the mesuring battary;
The detector unit is used to detecting the voltage and discharge current of the mesuring battary, and detected value is transmitted to described Control unit, the memory cell, the output unit;
Described control unit is compared according to discharge current detected value and preset value, and according to comparison result the electricity to be measured is adjusted The discharge current in pond;
The memory cell is used to store the test data of the detector unit;
The output unit is used to export the test data of the detector unit.
As the improvement of above-mentioned technical proposal, LC energy-storage units are provided between the load unit and the mesuring battary, LC energy-storage units are used to store the discharge energy of the mesuring battary, and the discharge energy is used to put the load unit Electricity.
Used as the further improvement of above-mentioned technical proposal, the LC energy-storage units include inductance and electric capacity, the inductance string It is coupled between the positive pole of the mesuring battary and the electric capacity, the electric capacity other end is connected with the negative pole of the mesuring battary, The two ends of the electric capacity are connected respectively with the two ends of the load unit.
Used as the further improvement of above-mentioned technical proposal, the detector unit includes:
Voltage detector, for detecting the voltage of the mesuring battary;
Current detector, for detecting the discharge current of the mesuring battary;
Temperature detector, for detecting the temperature of the battery discharge tester.
Used as the further improvement of above-mentioned technical proposal, described control unit includes voltage controller, current controller, temperature Degree controller:
The voltage controller be used for the detected value of the voltage detector is compared with discharge voltage lower limit, according to than The discharge condition of the mesuring battary is adjusted to result;
The current controller be used for the detected value of the current detector is compared with discharge current preset value, according to than The discharge current of the mesuring battary is adjusted to result;
The temperature controller is used to compare the detected value of the temperature detector and temperature threshold, according to comparison result Adjust the discharge condition of the mesuring battary.
Used as the further improvement of above-mentioned technical proposal, the battery discharge tester also includes power supply unit, the confession Electric unit is used to provide constant working voltage for the battery discharge tester.
Used as the further improvement of above-mentioned technical proposal, the battery discharge tester also includes operating unit, the behaviour Make unit for being input into regulating command to the battery discharge tester for user.
Used as the further improvement of above-mentioned technical proposal, the load unit includes a resistor.
Used as the further improvement of above-mentioned technical proposal, the load unit is connected with for carrying out to the load unit The heat-sink unit of radiating.
Used as the further improvement of above-mentioned technical proposal, the battery discharge tester is also included for reporting to the police or pointing out Alarm unit.
The invention has the beneficial effects as follows:By arranging interface end, load unit, detector unit, control unit, storage list Unit, output unit, load unit consumes the energy of mesuring battary, and control unit adjusts electricity to be measured according to the detected value of detector unit The discharge current in pond, there is provided a kind of simple structure, battery discharge tester easily fabricated, with low cost.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate Appended accompanying drawing, is described in detail below.
Description of the drawings
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be attached to what is used needed for embodiment Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, thus be not construed as it is right The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can be with according to this A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is the overall schematic of the battery discharge tester that the embodiment of the present invention 1 is provided;
Fig. 2 is the first schematic diagram of the battery discharge tester that the embodiment of the present invention 1 is provided;
Fig. 3 is the second schematic diagram of the battery discharge tester that the embodiment of the present invention 1 is provided;
Fig. 4 is the 3rd schematic diagram of the battery discharge tester that the embodiment of the present invention 1 is provided;
Fig. 5 is the 4th schematic diagram of the battery discharge tester that the embodiment of the present invention 1 is provided.Main element symbol description:
1000- battery discharge testers, 0100- interface ends, 0200- load units, 0300- detector units, 0310- voltages Detector, 0320- current detectors, 0330- temperature detectors, 0400- control units, 0410- voltage controllers, 0420- is electric Stream controller, 0430- temperature controllers, 0500- memory cell, 0600- output units, 0700-LC energy-storage units, 0710- is electric Sense, 0720- electric capacity, 0730- relays, 0740- diodes, 0750-MOS pipes, 0800- power supply units, 0810- reference voltage moulds Block, 0820-PWM control chips, 0900- alarm units.
Specific embodiment
For the ease of understanding the present invention, battery discharge tester is more fully retouched below with reference to relevant drawings State.The preferred embodiment of battery discharge tester is given in accompanying drawing.But, battery discharge tester can be by many differences Form realizing, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is made to battery The disclosure of discharge tester is more thorough comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can directly on another element Or can also there is element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to To another element or may be simultaneously present centering elements.Conversely, when element be referred to as " directly existing " another element " on " when, There is no intermediary element.Term as used herein " vertical ", " level ", "left", "right" and similar statement are For illustrative purposes.
Unless otherwise defined, all of technology used herein and scientific terminology and the technical field for belonging to the present invention The implication that technical staff is generally understood that is identical.Herein the term used in the description in battery discharge tester is simply The purpose of description specific embodiment, it is not intended that limit the present invention.Term as used herein " and/or " include one or The arbitrary and all of combination of multiple related Listed Items.
Embodiment 1
Fig. 1 and Fig. 2 is please referred to, battery discharge tester 1000 includes interface end 0100, load unit 0200, detection Unit 0300, control unit 0400, memory cell 0500, output unit 0600.
Preferably, battery discharge tester 1000 is provided with closing housing, for protecting each of battery discharge tester 1000 Individual functional unit, and improve the mobile convenience and range of application of battery discharge tester 1000.
Refer to Fig. 3, it is preferable that battery discharge tester 1000 also includes a power supply unit 0800, power supply unit 0800 For providing constant working voltage for battery discharge tester 1000.
Further preferably, power supply unit 0800 includes that reference voltage module 0810 controls core with PWM (pulse width modulation) Piece 0820.Reference voltage module 0810 is used to obtain voltage and power to pwm chip 0820 from mesuring battary, PWM controls Chip 0820 is used for modulation and provides stable working voltage to battery discharge tester 1000.Usually, pwm chip 0820 can designed, designed, standard finished products part also can be bought from market.
Thus, the function that power supply is capable of achieving battery discharge tester 1000 is increased without the need for extra.
Interface end 0100 is used to be connected with the both positive and negative polarity of mesuring battary.Specifically, interface end 0100 can be located at battery Joint or jack on the closing housing of discharge tester 1000, it is only necessary to which battery discharge tester is capable of achieving by simple grafting 1000 with the connection of mesuring battary.
Load unit 0200 is used to consume the electric energy of mesuring battary.Specifically, load unit 0200 has load, to The electric discharge to mesuring battary is realized, so as to realize the burn-in test to mesuring battary.Wherein, burn-in test refers to that analog equipment exists The various factors being related in real use condition produces aging situation to product and carries out the process that corresponding conditionses strengthen experiment.
Preferably, load unit 0200 includes a resistor.Resistor is also known as resistance, absorbs the energy of mesuring battary and turns Turn to thermal energy and scatter and disappear.Resistor does not exist and punctures or possibility that snowslide is damaged as load, more pacifies compared to transistor Entirely, and cost is very cheap, significantly reduce the manufacturing cost of battery discharge tester 1000.
Further preferably, resistor is load resistance.The ultralow induction reactance of load resistance, will not produce vibration, it is to avoid to loop In other elements cause damage.Simultaneously load resistance has good heat dispersion, it is to avoid heat build-up and to battery discharge Tester 1000 causes cause thermal damage.
Refer to Fig. 4, it is preferable that LC energy-storage units 0700, LC energy storage are provided between load unit 0200 and mesuring battary Unit 0700 is used to store the discharge energy of mesuring battary, and the discharge energy of storage is used to discharge load unit 0200.
Further preferably, LC energy-storage units 0700 include inductance 0710 and electric capacity 0720, and inductance 0710 is series at electricity to be measured Between the positive pole and electric capacity 0720 in pond, the other end of electric capacity 0720 is connected with the negative pole of mesuring battary, the two ends difference of electric capacity 0720 It is connected with the two ends of load unit 0200.
Still more preferably, be additionally provided between inductance 0710 and the positive pole of mesuring battary the relay 0730 that is connected in parallel with Diode 0740.Further, diode 0740 is also serially connected with positive temperature coefficient thermistor (PTC), right by temperature control Loop plays a protective role.The precharge realized to electric capacity 0720 additionally, diode 0740 is connected with PTC, it is to avoid cause relay The infringement of device 0730 and other devices.
Still more preferably, metal-oxide-semiconductor 0750 is additionally provided between the negative pole of the negative pole of load unit 0200 and electric capacity 0720. Metal-oxide-semiconductor 0750 is preferably N-channel MOS pipe, and its source electrode is connected with the negative pole of electric capacity 0720, the negative pole of drain electrode and load unit 0200 Connection, grid is connected with control unit 0400.
When interface end 0100 is initially connected with mesuring battary, relay 0730 disconnects, and inductance 0710 passes through diode 0740 and PTC directly turns on the positive pole of mesuring battary, and electric capacity 0720 is able to charge and voltage gradually rises.
When electric capacity 0720 voltage close to mesuring battary voltage when, control unit 0400 to relay 0730 sends control Signal processed and close relay 0730.Now, inductance 0710 is mainly connected, electric capacity by relay 0730 with mesuring battary 0720 is synchronous with the holding of the voltage of mesuring battary and power to load unit 0200.
Meanwhile, control unit 0400 is to the output pwm signal of metal-oxide-semiconductor 0750.Metal-oxide-semiconductor 0750 controls to bear according to pwm signal The electric current of the place path of carrier unit 0200, makes the constant current hold, and realizes the current constant control to discharge current.
Preferably, load unit 0200 is connected with the heat-sink unit for being radiated to load unit 0200.It is concrete and Speech, heat-sink unit can be the forms such as radiator fan, fin, to distribute heat in time in external environment.
Detector unit 0300 is used to detect the voltage and discharge current of mesuring battary, and detected value is transmitted to control unit 0400th, memory cell 0500, output unit 0600.
Refer to Fig. 5, it is preferable that detector unit 0300 includes:
Voltage detector 0310, for detecting the voltage of mesuring battary.
Current detector 0320, for detecting the discharge current of mesuring battary.Specifically, current detector 0320 connects On load unit 0200, by measuring the electric current of load unit 0200 measurement to discharge current is realized.
Temperature detector 0330, for detecting the temperature of battery discharge tester 1000.Specifically, temperature detector 0330 can be the forms such as temp probe, thermistor, the main temperature by measuring metal-oxide-semiconductor 0750 and power supply unit 0800, Prevent battery discharge tester 1000 overheated.
Control unit 0400 is compared according to discharge current detected value and preset value, and according to comparison result mesuring battary is adjusted Discharge current.
Preferably, control unit 0400 includes voltage controller 0410, current controller 0420, temperature controller 0430:
Voltage controller 0410 be used for the detected value of voltage detector 0310 is compared with discharge voltage lower limit, according to than The discharge condition of mesuring battary is adjusted to result.
Specifically, when the detected value of voltage detector 0310 is less than discharge voltage lower limit, mesuring battary electricity is shown Pressure is not enough, and the control discharge loop of control unit 0400 is remained open, and prevents that mesuring battary was caused to put infringement.
Current controller 0420 be used for the detected value of current detector 0320 is compared with discharge current preset value, according to than The discharge current of mesuring battary is adjusted to result.
Specifically, control unit 0400 is controlled negative according to the detected value of current detector 0320 by metal-oxide-semiconductor 0750 The constant current hold of carrier unit 0200, so that the discharge current of mesuring battary keeps constant.
Temperature controller 0430 is used to compare the detected value of temperature detector 0330 and temperature threshold, according to comparison result Adjust the discharge condition of mesuring battary.
Specifically, when the detected value of temperature detector 0330 is more than temperature threshold, battery discharge tester is shown 1000 have been in overheated precarious position.Thus, temperature controller 0430 cuts off the discharge circuit of mesuring battary, surveys battery discharge Examination instrument 1000 is able to rest and lower the temperature.
Memory cell 0500 is used to store the test data of detector unit 0300, in case subsequent examination is safeguarded.
Preferably, memory cell 0500 includes EEPROM.EEPROM(Electrically Erasable Programmable Read-Only Memory), i.e. EEPROM is that data are not lost after a kind of power down The storage chip of mistake.
When battery discharge tester 1000 occurs power down, EEPROM immediately records current last recording parameters, with Directly examination after being re-energised standby next time.Thus, battery discharge tester 1000 is capable of achieving power-failure memory function, reduces power down meaning Outer infringement.
Output unit 0600 is used to export the test data of detector unit 0300, may also comprise battery discharge tester 1000 Other specification.
Specifically, output unit 0600 can be display screen, for the test data for externally showing detector unit 0300, So that user is checked regulation immediately.
Battery discharge tester 1000 also includes operating unit, and operating unit is used for for user to battery discharge tester 1000 input regulating commands.
Specifically, operating unit can be the forms such as button, knob, and located at the surface of closing housing, further carry High operation ease.
Battery discharge tester 1000 also includes the alarm unit 0900 for reporting to the police or pointing out, and alarm unit 0900 can be with It is the forms such as buzzer, LED, audible-visual annunciator.
Specifically, when the detection data of detector unit 0300 exceedes alarm threshold value, control unit 0400 is single to reporting to the police Unit 0900 sends alarm signal, makes alarm unit 0900 send the warning messages such as sound, light, to cause the attention of user.
To sum up, battery discharge tester 1000 is manufactured using common components and parts, composition simple structure, thus with low cost, It is easily fabricated.
In all examples being illustrated and described herein, any occurrence should be construed as merely exemplary, and not Be as restriction, therefore, other examples of exemplary embodiment can have different values.
It should be noted that:Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined in individual accompanying drawing, then it need not be further defined and is explained in subsequent accompanying drawing.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more concrete and detailed, but and Therefore limitation of the scope of the invention can not be interpreted as.It should be pointed out that for the person of ordinary skill of the art, Without departing from the inventive concept of the premise, some deformations and improvement can also be made, these belong to the protection model of the present invention Enclose.Therefore, protection scope of the present invention should be defined by claims.

Claims (10)

1. a kind of battery discharge tester, it is characterised in that including interface end, load unit, detector unit, control unit, deposit Storage unit, output unit:
The interface end is used to be connected with the both positive and negative polarity of mesuring battary;
The load unit is used to consume the electric energy of the mesuring battary;
The detector unit is used to detect the voltage and discharge current of the mesuring battary, and detected value is transmitted to the control Unit, the memory cell, the output unit;
Described control unit is compared according to discharge current detected value and preset value, and according to comparison result the mesuring battary is adjusted Discharge condition;
The memory cell is used to store the test data of the detector unit;
The output unit is used to export the test data of the detector unit.
2. battery discharge tester according to claim 1, it is characterised in that the load unit and the mesuring battary Between be provided with LC energy-storage units, LC energy-storage units are used to storing the discharge energy of the mesuring battary, and by the discharge energy For discharging the load unit.
3. battery discharge tester according to claim 2, it is characterised in that the LC energy-storage units include inductance with electricity Hold, the inductance is series between the positive pole of the mesuring battary and the electric capacity, the electric capacity other end and the electricity to be measured The negative pole connection in pond, the electric capacity two ends are connected respectively with the two ends of the load unit.
4. battery discharge tester according to claim 1, it is characterised in that the detector unit includes:
Voltage detector, for detecting the voltage of the mesuring battary;
Current detector, for detecting the discharge current of the mesuring battary;
Temperature detector, for detecting the temperature of the battery discharge tester.
5. battery discharge tester according to claim 4, it is characterised in that described control unit includes voltage control Device, current controller, temperature controller:
The voltage controller is used to compare the detected value of the voltage detector with discharge voltage lower limit, ties according to comparing Fruit adjusts the discharge condition of the mesuring battary;
The current controller is used to compare the detected value of the current detector with discharge current preset value, ties according to comparing Fruit adjusts the discharge current of the mesuring battary;
The temperature controller is used to compare the detected value of the temperature detector and temperature threshold, is adjusted according to comparison result The discharge condition of the mesuring battary.
6. battery discharge tester according to claim 1, it is characterised in that the battery discharge tester also includes supplying Electric unit, said supply unit is used to provide constant working voltage for the battery discharge tester.
7. battery discharge tester according to claim 1, it is characterised in that the battery discharge tester also includes behaviour Make unit, the operating unit is used to be input into regulating command to the battery discharge tester for user.
8. battery discharge tester according to claim 1, it is characterised in that the load unit includes a resistor.
9. battery discharge tester according to claim 1, it is characterised in that the load unit is connected with for institute State the heat-sink unit that load unit is radiated.
10. battery discharge tester according to claim 1, it is characterised in that the battery discharge tester also includes For the alarm unit reported to the police or point out.
CN201710041615.2A 2017-01-20 2017-01-20 Battery discharge tester Pending CN106646264A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710041615.2A CN106646264A (en) 2017-01-20 2017-01-20 Battery discharge tester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710041615.2A CN106646264A (en) 2017-01-20 2017-01-20 Battery discharge tester

Publications (1)

Publication Number Publication Date
CN106646264A true CN106646264A (en) 2017-05-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710041615.2A Pending CN106646264A (en) 2017-01-20 2017-01-20 Battery discharge tester

Country Status (1)

Country Link
CN (1) CN106646264A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109189616A (en) * 2018-07-26 2019-01-11 上海与德通讯技术有限公司 A kind of discharge test method and terminal to be measured
CN109669141A (en) * 2018-12-18 2019-04-23 成都纵横大鹏无人机科技有限公司 A kind of discharge test method, device and equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109189616A (en) * 2018-07-26 2019-01-11 上海与德通讯技术有限公司 A kind of discharge test method and terminal to be measured
CN109669141A (en) * 2018-12-18 2019-04-23 成都纵横大鹏无人机科技有限公司 A kind of discharge test method, device and equipment

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