CN104089723A - Battery temperature detection assembly - Google Patents
Battery temperature detection assembly Download PDFInfo
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- CN104089723A CN104089723A CN201410347785.XA CN201410347785A CN104089723A CN 104089723 A CN104089723 A CN 104089723A CN 201410347785 A CN201410347785 A CN 201410347785A CN 104089723 A CN104089723 A CN 104089723A
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Abstract
A battery temperature detection assembly comprises an intelligent processor and a battery management system and further comprises a temperature measurement optical fiber wound on a battery core, a laser device for emitting lasers, a photodiode for photoelectric conversion, and a wavelength division multiplexer. The laser device is in optical signal connection with the temperature measurement optical fiber through the wavelength division multiplexer. The temperature measurement optical fiber, the wavelength division multiplexer and the photodiode are sequentially connected. The photodiode is in signal connection with the intelligent processor. The battery temperature detection assembly is a battery temperature monitoring system based on distributed type optical fiber temperature measurement. According to the distributed type optical fiber temperature measurement, the optical fiber Raman scattering effect for temperature measurement and the optical time domain reflection measurement technology for temperature positioning are comprehensively utilized, temperature monitoring and signal transmitting are achieved through a single optical cable, and then spatial temperature distribution information is obtained. By means of the battery temperature detection assembly, the temperature distribution condition of the battery core along the optical fiber can be continuously measured, the measurement distance is long, and ceaseless automatic measurement can be conducted.
Description
Technical field
The present invention relates to battery detection equipment technical field, more particularly, particularly a kind of battery temperature detection components.
Background technology
Battery, particularly lithium battery is widely applied in modern energy storage device, lithium battery quality when a large amount of production is difficult for grasping, when battery is dispatched from the factory there is difference slightly in electric weight, and along with operating environment, the factor such as aging, between battery, inconsistency will heal to become obviously, and battery efficiency, life-span are also all by variation, add and overcharge or cross the situation such as put, when serious, may cause the safety problems such as catching fire.
Battery management system (BMS) is exactly for intelligent management and safeguards each battery unit, monitoring battery running status, extend the serviceable life of battery, wherein important monitoring index is with regard to the temperature of battery, on market, the main thermometric mode of BMS is arranged a temperature sensor exactly in each setting regions or battery core, by wire, the measuring-signal of sensor is sent to detecting unit again, realizes the detection to battery core temperature.(institute's battery core of using is from hundreds of to several thousand for jumbo energy storage device to adopt this monitoring mode, even more), need to increase a large amount of microprocessors and be responsible for treatment temperature data, also need to arrange a large amount of cable for measuring temperature simultaneously, wiring workload is installed large, the maintenance of the problem of probe own also will be very complicated.
Summary of the invention
In view of this, the invention provides a kind of battery temperature detection components, to address the above problem.
For achieving the above object, the invention provides following technical scheme:
A kind of battery temperature detection components, include intelligent processor and by communication interface and the battery management system that described intelligent processor signal is connected, also comprise for being wound into temperature-measuring optical fiber in battery, for sending the laser instrument of pulsed light, for photodiode and the wavelength division multiplexer of opto-electronic conversion;
Described laser instrument is connected with described temperature-measuring optical fiber light signal by described wavelength division multiplexer;
Described temperature-measuring optical fiber, described wavelength division multiplexer, described photodiode connect successively, and described photodiode is connected with described intelligent processor signal.
Preferably, the present invention also includes alarm assemblies, and described alarm assemblies includes accident recording apparatus and alarm, and described accident recording apparatus and described alarm are connected with described intelligent processor signal.
The invention provides a kind of battery temperature detection components, the battery management system that includes intelligent processor and be connected with intelligent processor signal by communication interface, also comprises for being wound into temperature-measuring optical fiber in battery, for sending the laser instrument of pulsed light, for photodiode and the wavelength division multiplexer of opto-electronic conversion; Laser instrument is connected with temperature-measuring optical fiber light signal by wavelength division multiplexer; Temperature-measuring optical fiber, wavelength division multiplexer, photodiode connect successively, and photodiode is connected with intelligent processor signal.Battery temperature detection components provided by the invention is a kind of battery temperature monitoring system based on distributed optical fiber temperature measurement.Distributed optical fiber temperature measurement fully utilizes Effect of Optical Fiber Raman Scatter (for realizing temperature survey) and optical time domain reflection measuring technique (for realizing temperature location) exactly, realize unit cable to the monitoring of temperature and signal transmission, obtain spatial temperature distribution information.It can continuous coverage optical fiber battery core along the line Temperature Distribution situation, measuring distance can reach 30 kilometers, can carry out continual automatic measurement.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of battery temperature detection components in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1, Fig. 1 is the structural representation of battery temperature detection components in an embodiment of the present invention.
The invention provides a kind of battery temperature detection components, include intelligent processor 1 and by communication interface and the battery management system 2 that intelligent processor 1 signal is connected, also comprise for being wound into temperature-measuring optical fiber 3 in battery, for sending the laser instrument of pulsed light, for photodiode and the wavelength division multiplexer of opto-electronic conversion; Laser instrument is connected with temperature-measuring optical fiber 3 light signals by wavelength division multiplexer; Temperature-measuring optical fiber 3, wavelength division multiplexer, photodiode connect successively, and photodiode is connected with intelligent processor 1 signal.
Ramam effect (Ramanscattering), also claims Raman scattering, refers to the light wave phenomenon that frequency changes after being scattered.
Wave division multiplexing WDM (Wavelength Division Multiplexing) is at transmitting terminal, through multiplexer, (also to claim wave multiplexer by the optical carrier of two or more different wave lengths (carrying various information), Multiplexer) merge together, and be coupled to the technology of transmitting in same optical fiber of optical line; At receiving end, through demodulation multiplexer, (also claim channel-splitting filter or claim demultiplexer, Demultiplexer), by the light carrier separation of various wavelength, then by photoreceiver, be for further processing to recover original signal.This technology of simultaneously transmitting two or numerous different wave length light signals in same optical fiber, is called wavelength-division multiplex.
Battery temperature detection components provided by the invention is a kind of battery temperature monitoring system based on distributed optical fiber temperature measurement.Distributed optical fiber temperature measurement fully utilizes Effect of Optical Fiber Raman Scatter (for realizing temperature survey) and optical time domain reflection measuring technique (for realizing temperature location) exactly, realize unit cable to the monitoring of temperature and signal transmission, obtain spatial temperature distribution information.It can continuous coverage optical fiber battery core along the line Temperature Distribution situation, measuring distance can reach 30 kilometers, can carry out continual automatic measurement.
Major technique innovative point of the present invention:
1, the temperature around each battery core of measurement by a fiber optic loop, with respect to traditional thermometric mode of temperature-sensing probe of burying underground at each battery core place, has saved a large amount of signal routings and intelligent cell data acquisition channel, has saved cost of products.
2, adopt distributed optical fiber temperature measurement technology, not only can measure the temperature of each battery core, can also calculate the position of measured point.
3, distributed optical fiber temperature measurement technology, adopts optical fiber as sensor, can monitor along the temperature information on whole piece optical fiber link, compares and does not measure blind area with traditional point type temp measuring system.
Concrete work flow of the present invention is:
1, controller inner laser device sends pulsed light and enters temperature-measuring optical fiber 3 by wavelength division multiplexer, and in optical fiber, molecule and inhomogeneous impurity have scattering process to the laser pulse of incident, and scattered light transmits to surrounding.By wavelength division multiplexer and bandpass filter, isolate stokes light and anti-Stokes light in rear orientation light, by photodiode, light signal is converted to electric signal respectively again, after amplifier amplifies electric signal, the data acquisition channel of delivering to microprocessor is realized the collection of temperature data.
2, by measuring the mistiming between incident light and rear orientation light, and the light velocity of propagation in optical fiber, calculate the position of different scattering points apart from the distance of incident end, thereby obtain the continuous Temperature Distribution of optical fiber.
3, controller can arrange different temperatures alarming value, and when the temperature detecting over setting value, controller can produce alerting signal and logout (logout comprises temperature beyond limit value, out-of-limit time and position).
4, controller, with communication interface, can be sent to battery management system 2 (BMS) in real time by all data that monitor.
Particularly, the present invention also includes alarm assemblies, and alarm assemblies includes accident recording apparatus and alarm, and accident recording apparatus and alarm are connected with intelligent processor 1 signal.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (2)
1. a battery temperature detection components, the battery management system (2) that includes intelligent processor (1) and be connected with described intelligent processor signal by communication interface, is characterized in that,
Also comprise for being wound into temperature-measuring optical fiber (3) in battery, for sending the laser instrument of pulsed light, for photodiode and the wavelength division multiplexer of opto-electronic conversion;
Described laser instrument is connected with described temperature-measuring optical fiber light signal by described wavelength division multiplexer;
Described temperature-measuring optical fiber, described wavelength division multiplexer, described photodiode connect successively, and described photodiode is connected with described intelligent processor signal.
2. battery temperature detection components according to claim 1, is characterized in that,
Also include alarm assemblies, described alarm assemblies includes accident recording apparatus and alarm, and described accident recording apparatus and described alarm are connected with described intelligent processor signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410347785.XA CN104089723A (en) | 2014-07-21 | 2014-07-21 | Battery temperature detection assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410347785.XA CN104089723A (en) | 2014-07-21 | 2014-07-21 | Battery temperature detection assembly |
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| CN104089723A true CN104089723A (en) | 2014-10-08 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409211A (en) * | 2014-11-28 | 2015-03-11 | 上海思源电力电容器有限公司 | Fault-measurable capacitor unit and on-line fault monitoring method thereof |
| CN105762401A (en) * | 2016-01-07 | 2016-07-13 | 小牛动力（武汉）新能源技术有限公司 | Lithium ion power battery and utilization method thereof |
| CN107796529A (en) * | 2017-10-18 | 2018-03-13 | 深圳伊讯科技有限公司 | A kind of distributed optical fiber temperature measuring method and system |
| CN110031126A (en) * | 2019-04-08 | 2019-07-19 | 中国科学技术大学 | Temperature monitoring system in a kind of electrochemical energy storage station prefabricated cabin based on distributed optical fiber temperature measurement |
| CN110261002A (en) * | 2019-05-14 | 2019-09-20 | 铠龙东方汽车有限公司 | A kind of power battery pack temperature-detecting device |
| CN112067155A (en) * | 2020-11-11 | 2020-12-11 | 武汉昊衡科技有限公司 | Lithium battery temperature dynamic monitoring method based on OFDR |
| CN114724327A (en) * | 2022-05-24 | 2022-07-08 | 武汉新能源研究院有限公司 | Alarm device and method for lithium battery energy storage station |
-
2014
- 2014-07-21 CN CN201410347785.XA patent/CN104089723A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409211A (en) * | 2014-11-28 | 2015-03-11 | 上海思源电力电容器有限公司 | Fault-measurable capacitor unit and on-line fault monitoring method thereof |
| CN105762401A (en) * | 2016-01-07 | 2016-07-13 | 小牛动力（武汉）新能源技术有限公司 | Lithium ion power battery and utilization method thereof |
| CN105762401B (en) * | 2016-01-07 | 2017-10-31 | 小牛动力（武汉）新能源技术有限公司 | Lithium-ion-power cell and application method |
| CN107796529A (en) * | 2017-10-18 | 2018-03-13 | 深圳伊讯科技有限公司 | A kind of distributed optical fiber temperature measuring method and system |
| CN110031126A (en) * | 2019-04-08 | 2019-07-19 | 中国科学技术大学 | Temperature monitoring system in a kind of electrochemical energy storage station prefabricated cabin based on distributed optical fiber temperature measurement |
| CN110261002A (en) * | 2019-05-14 | 2019-09-20 | 铠龙东方汽车有限公司 | A kind of power battery pack temperature-detecting device |
| CN112067155A (en) * | 2020-11-11 | 2020-12-11 | 武汉昊衡科技有限公司 | Lithium battery temperature dynamic monitoring method based on OFDR |
| CN114724327A (en) * | 2022-05-24 | 2022-07-08 | 武汉新能源研究院有限公司 | Alarm device and method for lithium battery energy storage station |
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Application publication date: 20141008 |