CN105700587A - A thermostatic control system for lithium battery performance tests - Google Patents
A thermostatic control system for lithium battery performance tests Download PDFInfo
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- CN105700587A CN105700587A CN201610052667.5A CN201610052667A CN105700587A CN 105700587 A CN105700587 A CN 105700587A CN 201610052667 A CN201610052667 A CN 201610052667A CN 105700587 A CN105700587 A CN 105700587A
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- temperature
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/30—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature
- G05D23/303—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature using a sensing element having a resistance varying with temperature, e.g. thermistor
- G05D23/306—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature using a sensing element having a resistance varying with temperature, e.g. thermistor using semiconductor devices
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- Automation & Control Theory (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a thermostatic control system for lithium battery performance tests. The system comprises a temperature detection module, a temperature control module, a temperature adjusting module and a lithium battery performance test module. The temperature detection module comprises a temperature sensor. The temperature control module comprises a single-chip microcomputer. The temperature adjusting module comprises a refrigeration driving power supply circuit and a heating driving power supply circuit. The lithium battery performance test module is connected to a lithium battery and tests various performance parameters of the lithium battery. The thermostatic control system for the lithium battery performance tests of the invention has the following advantages: the temperature of a thermostatic chamber is adjusted by a semiconductor chilling plate and a semiconductor heating plate, so that the system is green and environment-friendly; the chilling plate can continuously work; the usage life is long; the usage is convenient; the temperature of environment where the lithium battery performance test module is can be stably controlled; influences by external temperatures on the lithium battery performance tests can be effectively avoided; and the precision of the lithium battery performance can be raised.
Description
Technical field
The present invention relates to lithium battery technical field of performance test, particularly to a kind of lithium battery performance test thermostatic control system therein。
Background technology
Energy-conserving and environment-protective are the important themes of world today's development, and countries in the world fall over each other to develop various energy saving environmental protection product。Lithium battery as a kind of compact power, because of its have that self-discharge rate is low, energy storage density is high, the plurality of advantages such as service life cycle length, pollution-free and security performance are high, be widely used in multiple fields such as mobile phone, notebook computer, electric automobile。And the performance quality of lithium battery determines the effect of energy-conserving and environment-protective, therefore the performance test of lithium battery is most important。
Current its simple in construction of existing battery performance test device so that measuring accuracy it is difficult to ensure that, in the detection process to battery performance, battery is directly exposed in external environment, and ambient temperature has a strong impact on the performance test precision of battery itself。Therefore a kind of constant temperature test performance device is urgently developed, in order to solve the problems referred to above better。
Summary of the invention
In order to solve the deficiencies in the prior art, the present invention proposes a kind of lithium battery performance test thermostatic control system。
The present invention adopts the following technical scheme that
A kind of lithium battery performance test thermostatic control system, including temperature detecting module, temperature control modules, temperature adjustment module, lithium battery performance test module, temperature detecting module includes temperature sensor, temperature control modules includes single-chip microcomputer, temperature adjustment module includes refrigeration and drives power circuit and heat driving power circuit, and lithium battery performance test module connects lithium battery and tests the various performance parameters of lithium battery；
Described temperature detecting module, lithium battery performance test module, lithium battery are both placed in calorstat, single-chip microcomputer connects refrigeration and drives power circuit and heat driving power circuit, and freezing to drive power circuit and heat driving power circuit connects the semiconductor chilling plate being arranged in calorstat and semiconductor heating sheet respectively；
Single-chip microcomputer passes through the temperature of temperature adjustment module regulating thermostatic case according to the temperature data set, temperature sensor gathers calorstat internal temperature, the temperature information of test is sent to single-chip microcomputer, surveyed performance parameter data are sent to single-chip microcomputer by lithium battery performance test module simultaneously, single-chip microcomputer, by temperature information, performance parameter data and the temperature data comparison of setting, adjusts the duty of temperature adjustment module。
Preferably, described temperature detecting module, temperature control modules, temperature adjustment module, lithium battery performance test module constitute closed loop controlling structure, the temperature data that test is arrived by temperature detecting module is as feedback signal back to temperature control modules, thus the temperature of dynamic regulating thermostatic case。
Preferably, data-reading unit, given temperature parameter unit, PID regulator, PWM generator is set in described single-chip microcomputer, by PID regulator, temperature signal is delivered to PWM generator and produce pwm signal, control generation drive power circuit as refrigeration and heat the controllable output voltage driving power circuit, and then control semiconductor chilling plate and semiconductor heating sheet freeze respectively or heat。
Preferably, described single-chip microcomputer is also respectively connected with communication interface, display and setting device, and communication interface is connected with host computer with by single-chip microcomputer, and display is used for the display of corresponding data and the setting of temperature data with setting device。
Preferably, described lithium battery performance test thermostatic control system thermoregulation range is-50 DEG C～70 DEG C。
Preferably, the data of described lithium battery performance test module test include lithium battery open-circuit voltage, actual capacity, efficiency for charge-discharge, self-discharge rate and cell degradation degree。
The Advantageous Effects that as above technical scheme obtains is adopted to be:
Heretofore described and lithium battery performance test thermostatic control system this have the advantage that selection semiconductor chilling plate and heat sheet and carry out the temperature of regulating thermostatic case, environmental protection, cooling piece can continuous operation, life-span is long, easy to use, and the ambient temperature that control that can be stable is residing for lithium battery performance test module, it is possible to effectively prevent the ambient temperature impact on lithium battery performance test, improve the measuring accuracy of lithium battery performance。
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention。
Fig. 2 is the system block diagram of the present invention。
Detailed description of the invention
The invention provides a kind of lithium battery performance test thermostatic control system, for making the purpose of the present invention, technical scheme and effect clearly, clearly, be described further in conjunction with 1 to 2 pair of the specific embodiment of the present invention of accompanying drawing。Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention。
The invention provides a kind of lithium battery performance test thermostatic control system, as shown in Figure 1, it includes temperature detecting module 1, temperature control modules 2, temperature adjustment module 3, lithium battery performance test module 4。Wherein temperature detecting module is to adopt bus type temperature sensor, and the temperature signal measured is digital signal, can carry out the respective handling of temperature signal to the single-chip microcomputer of temperature control modules either directly through bus transfer；Temperature control modules adopts single-chip microcomputer as controller, receive the temperature signal that temperature detecting module transmission comes, temperature signal is delivered to PWM generator by PID regulator by the temperature data according to setting, control the cooling and warming instruction of calorstat temperature, single-chip microcomputer is connected with peripheral hardware, corresponding information is delivered to communication interface, it is possible to carry out the display of corresponding data and the setting of temperature data；Refrigeration that temperature adjustment module transmits according to temperature control modules, heat instruction, the controllable output voltage produce refrigeration through related circuit, heating, the control signal transmitted according to temperature control modules absorbs heat refrigeration respectively and releases heat and heat the temperature of regulating thermostatic case, it is ensured that battery performance module tests the various performance parameter of lithium battery when stationary temperature。
The working limit temperature of lithium battery is generally-40 DEG C～60 DEG C, carries out the ambient temperature range of parameter detecting for lithium battery and be-50 DEG C～70 DEG C under laboratory condition。Semiconductor temp .-regulating scope is between-130 and+90, and semiconductor chilling plate and semiconductor heating sheet can realize the parameter detecting of arbitrary temp in lithium battery-50 DEG C～70 DEG C。
Such as systematic square frame Fig. 2, according to given temperature parameter and temperature sensor, single-chip microcomputer detects that temperature compares, when lower than during to fixed temperature, by PID regulator, temperature signal is delivered to PWM generator, pwm signal produces to heat driving power supply through related circuit, driving semiconductor chilling plate heats, until constant temperature the temperature inside the box reaches to fixed temperature, equally, when calorstat temperature is higher than during to fixed temperature, pwm signal produces refrigeration through related circuit and drives power supply, drives semiconductor chilling plate refrigeration, until constant temperature the temperature inside the box reaches to fixed temperature。
Certainly; described above it is only presently preferred embodiments of the present invention; the present invention is not limited to enumerate above-described embodiment; should be noted that; any those of ordinary skill in the art are under the guidance of this specification; made all equivalent replacement, obvious variant, all fall within the essential scope of this specification, ought to be subject to the protection of the present invention。
Claims (6)
1. a lithium battery performance test thermostatic control system, it is characterized in that, including temperature detecting module, temperature control modules, temperature adjustment module, lithium battery performance test module, temperature detecting module includes temperature sensor, temperature control modules includes single-chip microcomputer, temperature adjustment module includes refrigeration and drives power circuit and heat driving power circuit, and lithium battery performance test module connects lithium battery and tests the various performance parameters of lithium battery；
Described temperature detecting module, lithium battery performance test module, lithium battery are both placed in calorstat, single-chip microcomputer connects refrigeration and drives power circuit and heat driving power circuit, and freezing to drive power circuit and heat driving power circuit connects the semiconductor chilling plate being arranged in calorstat and semiconductor heating sheet respectively；
Single-chip microcomputer passes through the temperature of temperature adjustment module regulating thermostatic case according to the temperature data set, temperature sensor gathers calorstat internal temperature, the temperature information of test is sent to single-chip microcomputer, surveyed performance parameter data are sent to single-chip microcomputer by lithium battery performance test module simultaneously, single-chip microcomputer, by temperature information, performance parameter data and the temperature data comparison of setting, adjusts the duty of temperature adjustment module。
2. a kind of lithium battery performance test thermostatic control system according to claim 1, it is characterized in that, described temperature detecting module, temperature control modules, temperature adjustment module, lithium battery performance test module constitute closed loop controlling structure, the temperature data that test is arrived by temperature detecting module is as feedback signal back to temperature control modules, thus the temperature of dynamic regulating thermostatic case。
3. a kind of lithium battery performance test thermostatic control system according to claim 1, it is characterized in that, data-reading unit, given temperature parameter unit, PID regulator, PWM generator is set in described single-chip microcomputer, by PID regulator, temperature signal is delivered to PWM generator and produce pwm signal, control generation drive power circuit as refrigeration and heat the controllable output voltage driving power circuit, and then control semiconductor chilling plate and semiconductor heating sheet freeze respectively or heat。
4. a kind of lithium battery performance test thermostatic control system according to claim 1, it is characterized in that, described single-chip microcomputer is also respectively connected with communication interface, display and setting device, communication interface is connected with host computer with by single-chip microcomputer, and display is used for the display of corresponding data and the setting of temperature data with setting device。
5. a kind of lithium battery performance test thermostatic control system according to claim 1, it is characterised in that described lithium battery performance test thermostatic control system thermoregulation range is-50 DEG C～70 DEG C。
6. a kind of lithium battery performance test thermostatic control system according to claim 1, it is characterized in that, the data of described lithium battery performance test module test include lithium battery open-circuit voltage, actual capacity, efficiency for charge-discharge, self-discharge rate and cell degradation degree。
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| CN201610052667.5A CN105700587B (en) | 2016-01-26 | 2016-01-26 | A kind of lithium battery performance test thermostatic control system |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106354173A (en) * | 2016-08-09 | 2017-01-25 | 北京小米移动软件有限公司 | Sensitivity attenuation testing method, device and system |
| CN106773650A (en) * | 2016-12-23 | 2017-05-31 | 天津力神特种电源科技股份公司 | Lithium-ions battery group quick method for heating and keeping constant temperature under extreme low temperature |
| CN106876824A (en) * | 2017-03-20 | 2017-06-20 | 电子科技大学 | A kind of semiconductor chilling plate Double-direction Temperature control device for button cell |
| CN107526043A (en) * | 2017-09-06 | 2017-12-29 | 福建猛狮新能源科技有限公司 | A kind of battery tester and battery testing method |
| CN107655959A (en) * | 2017-10-26 | 2018-02-02 | 浙江大学 | A kind of controllable thermoelectrochemistry battery testing platform of electrode temperature and its method |
| CN108398654A (en) * | 2018-01-10 | 2018-08-14 | 航天科工防御技术研究试验中心 | A kind of load point source ageing method |
| CN111007894A (en) * | 2019-12-17 | 2020-04-14 | 山东华芯半导体有限公司 | Method for accurately controlling temperature in NANDFlash characteristic test |
| CN111486655A (en) * | 2020-04-01 | 2020-08-04 | 九阳股份有限公司 | Constant temperature control method for semiconductor constant temperature box and semiconductor constant temperature box |
| CN111624501A (en) * | 2019-02-27 | 2020-09-04 | 中信国安盟固利动力科技有限公司 | Constant temperature box for constant temperature charging and discharging test of power battery |
| CN113206656A (en) * | 2021-05-20 | 2021-08-03 | 成都业贤科技有限公司 | Method for improving temperature control output voltage resolution of digital semiconductor refrigerating sheet |
| CN113341909A (en) * | 2021-04-27 | 2021-09-03 | 浙江合众新能源汽车有限公司 | Battery constant-temperature thermal management control strategy based on user selection |
| CN114520388A (en) * | 2022-02-08 | 2022-05-20 | 浙江荣泰电工器材股份有限公司 | Mica insulation box of five-series ternary lithium battery module for new energy automobile |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106354173A (en) * | 2016-08-09 | 2017-01-25 | 北京小米移动软件有限公司 | Sensitivity attenuation testing method, device and system |
| CN106773650A (en) * | 2016-12-23 | 2017-05-31 | 天津力神特种电源科技股份公司 | Lithium-ions battery group quick method for heating and keeping constant temperature under extreme low temperature |
| CN106773650B (en) * | 2016-12-23 | 2020-10-30 | 天津力神特种电源科技股份公司 | Method for rapidly heating and keeping constant temperature of lithium ion storage battery pack at extremely low temperature |
| CN106876824A (en) * | 2017-03-20 | 2017-06-20 | 电子科技大学 | A kind of semiconductor chilling plate Double-direction Temperature control device for button cell |
| CN106876824B (en) * | 2017-03-20 | 2019-10-01 | 电子科技大学 | A kind of semiconductor chilling plate Double-direction Temperature control device for button cell |
| CN107526043A (en) * | 2017-09-06 | 2017-12-29 | 福建猛狮新能源科技有限公司 | A kind of battery tester and battery testing method |
| CN107655959A (en) * | 2017-10-26 | 2018-02-02 | 浙江大学 | A kind of controllable thermoelectrochemistry battery testing platform of electrode temperature and its method |
| CN108398654B (en) * | 2018-01-10 | 2020-12-29 | 航天科工防御技术研究试验中心 | Load point power source aging method |
| CN108398654A (en) * | 2018-01-10 | 2018-08-14 | 航天科工防御技术研究试验中心 | A kind of load point source ageing method |
| CN111624501A (en) * | 2019-02-27 | 2020-09-04 | 中信国安盟固利动力科技有限公司 | Constant temperature box for constant temperature charging and discharging test of power battery |
| CN111007894A (en) * | 2019-12-17 | 2020-04-14 | 山东华芯半导体有限公司 | Method for accurately controlling temperature in NANDFlash characteristic test |
| CN111486655A (en) * | 2020-04-01 | 2020-08-04 | 九阳股份有限公司 | Constant temperature control method for semiconductor constant temperature box and semiconductor constant temperature box |
| CN113341909A (en) * | 2021-04-27 | 2021-09-03 | 浙江合众新能源汽车有限公司 | Battery constant-temperature thermal management control strategy based on user selection |
| CN113206656A (en) * | 2021-05-20 | 2021-08-03 | 成都业贤科技有限公司 | Method for improving temperature control output voltage resolution of digital semiconductor refrigerating sheet |
| CN113206656B (en) * | 2021-05-20 | 2024-02-02 | 成都业贤科技有限公司 | Method for improving temperature control output voltage resolution of digital semiconductor refrigeration sheet |
| CN114520388A (en) * | 2022-02-08 | 2022-05-20 | 浙江荣泰电工器材股份有限公司 | Mica insulation box of five-series ternary lithium battery module for new energy automobile |
| CN114520388B (en) * | 2022-02-08 | 2023-12-26 | 浙江荣泰电工器材股份有限公司 | Mica insulation box of five ternary lithium battery modules for new energy automobile |
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Effective date of registration: 20221219 Address after: Room 1901, unit 2, building 2, 735 Jinshui Road, Licang District, Qingdao, Shandong 266199 Patentee after: Qingdao Zhonghong Digital Technology Co.,Ltd. Address before: 266590 No. 579, Qian Wan Gang Road, Qingdao economic and Technological Development Zone, Shandong Patentee before: SHANDONG University OF SCIENCE AND TECHNOLOGY |