CN107677391A - A kind of battery temperature sensor - Google Patents
A kind of battery temperature sensor Download PDFInfo
- Publication number
- CN107677391A CN107677391A CN201711052662.3A CN201711052662A CN107677391A CN 107677391 A CN107677391 A CN 107677391A CN 201711052662 A CN201711052662 A CN 201711052662A CN 107677391 A CN107677391 A CN 107677391A
- Authority
- CN
- China
- Prior art keywords
- optical fibre
- fibre ring
- fiber grating
- battery
- temperature sensor
- 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
Links
- 239000013307 optical fiber Substances 0.000 claims abstract description 88
- 239000000835 fiber Substances 0.000 claims abstract description 43
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000741 silica gel Substances 0.000 claims description 6
- 229910002027 silica gel Inorganic materials 0.000 claims description 6
- 230000005622 photoelectricity Effects 0.000 claims description 5
- 210000004027 cell Anatomy 0.000 abstract description 28
- 238000012544 monitoring process Methods 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The present invention relates to a kind of battery temperature sensor, including optical fibre ring, fiber grating is provided with the optical fibre ring, the optical fibre ring is fixedly installed on battery cell surface by soft fixation kit；Also include temperature measuring equipment, the optical fibre ring is connected with the temperature measuring equipment.It is using the beneficial effect of such scheme：Fiber grating is provided with optical fibre ring, fiber grating is fixedly installed on by soft fixation kit by battery cell surface, reduce the volume of device, with encapsulate it is simple the advantages of, it can be conveniently mounted on each battery cell in battery case simultaneously, temperature monitoring individually is carried out to each battery cell, the temperature monitoring of otherness can be carried out to each battery cell in battery case.
Description
Technical field
The present invention relates to technical field of optical fiber and field of measuring technique, more particularly to a kind of battery temperature sensor.
Background technology
With the extensive use of electric automobile, requirement of the people to cell safety also more and more higher.Temperature is as a weighing apparatus
The parameter of battery status is measured, is the important monitoring object of cell safety.Traditional temperature sensor exist volume it is excessive and encapsulation
The problems such as complicated, it is so limited, prior art can only be monitored to the bulk temperature of battery case, and single piece of battery can not be made the difference
The temperature monitoring of the opposite sex.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the present invention proposes a kind of battery temperature sensor, has small volume
With encapsulate it is simple the advantages that, be easily installed on each battery cell in battery case, can be to each battery in battery case
Monomer carries out the temperature monitoring of otherness.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of battery temperature sensor, including optical fibre ring,
Fiber grating is provided with the optical fibre ring, the optical fibre ring is fixedly installed on battery cell by soft fixation kit
Surface；
The optical fibre ring is formed by optical fiber coiling；
Also include temperature measuring equipment, the optical fibre ring is connected with the temperature measuring equipment, the temperature survey dress
Put the light path for being formed and being communicated between optical fibre ring.
It is using the beneficial effect of such scheme：Fiber grating is provided with optical fibre ring, passes through soft fixation kit
Fiber grating is fixedly installed on battery cell surface, reduces the volume of device, has and encapsulates the advantages of simple, while can be square
Just it is arranged on each battery cell in battery case, temperature monitoring individually is carried out to each battery cell, can be to battery
Each battery cell in case carries out the temperature monitoring of otherness.
Further, the optical fibre ring is provided with multiple, and multiple optical fibre rings are formed by an optical fiber coiling, Mei Gehuan
Shape optical fiber is separately positioned on different battery cell surfaces, and the light communicated is formed between temperature measuring equipment and multiple optical fibre rings
Road, multiple optical fibre rings are separately positioned on different battery cells, realize the temperature for measuring multiple battery cells simultaneously.
Further, the temperature measuring equipment includes DBR laser and photoelectricity demodulator.DBR laser is used to send
Laser signal, after laser signal enters optical fibre ring, fiber grating can reflect the laser signal of specific wavelength, photoelectricity demodulator pair
The laser signal reflected is handled, and the temperature difference is measured by the offset of analysis center's wavelength.
Further, more than one fiber grating is provided with the optical fibre ring.Measured by multiple fiber gratings
The temperature of one battery cell, accuracy rate are higher.
Further, the optical fibre ring is not provided with coat in fiber grating region, ensures that fiber grating directly contacts
Battery cell surface；The optical fibre ring is provided with coat in non-fiber grating region, and protection optical fiber is without damage.
Further, the fixation kit is heat conductive silica gel., may be due to tested during by fiber grating measurement temperature
There is deformation in object, causes the structure of fiber grating to change, further results in and measurement error occur；Optical fibre ring can be protected
Battery is demonstrate,proved when there is deformation because of temperature change, optical fibre ring will not be pullled axially because of deformation, eliminate deformation
The error brought.In addition, the good heat conductivity of heat conductive silica gel, can protect fiber grating area not easy to break or scattered, due to leading
The adhesive of hot silica gel, facilitate optical fibre ring sensor device directly to contact battery cell surface, optical fibre ring can be allowed quick
Accurately measure the temperature on battery cell surface.
Brief description of the drawings
Fig. 1 is the structural representation of first embodiment of the invention；
Fig. 2 is the structural representation of second embodiment of the invention；
Fig. 3 is the structural representation of optical fiber of the present invention.
In accompanying drawing, the list of parts representated by each label is as follows：
1st, optical fibre ring, 2, fiber grating, 3, battery cell, 4, temperature measuring equipment.
Embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
As shown in figure 1, Fig. 1 is the structural representation of first embodiment of the invention.A kind of battery temperature sensor, including ring
Shape optical fiber 1, the optical fibre ring 1 are formed by optical fiber coiling, and fiber grating 2, the ring light are provided with the optical fibre ring 1
Fibre 1 is fixedly installed on the surface of battery cell 3 by soft fixation kit, you can individually enters trip temperature to each battery cell 3
Monitoring；Also include temperature measuring equipment 4, the optical fibre ring 1 is connected with the temperature measuring equipment 4, the temperature survey dress
Put the light path for being formed and being communicated between 4 and optical fibre ring 1.As shown in figure 3, Fig. 3 is the structural representation of optical fiber of the present invention.In this reality
Apply in example, an optical fiber turns to an optical fibre ring 1, and one end of optical fibre ring 1 is connected with temperature measuring equipment 4, and temperature is surveyed
The light path communicated is formed between amount device 4 and optical fibre ring 1；The other end of optical fibre ring 1 is exposed in atmosphere.Using single-mode optics
Fibre turns to optical fibre ring 1, convenient that fiber grating 2 is carved on optical fiber.
As shown in Fig. 2 Fig. 2 is the structural representation of second embodiment of the invention.The optical fibre ring 1 be provided with it is multiple,
Multiple optical fibre rings 1 are formed by an optical fiber coiling, and each optical fibre ring 1 is separately positioned on the different surfaces of battery cell 3, i.e.,
Temperature monitoring individually can be carried out to multiple battery cells 3.In the present embodiment, an optical fiber turns to multiple optical fibre rings 1,
In the light path that multiple optical fibre rings 1 form, one end of first optical fibre ring 1 is connected with temperature measuring equipment 4, optical fiber it is another
End at last optical fibre ring 1, it is exposed in atmosphere.
The process of inscription fiber grating 2 is on optical fiber：Formed using the diffraction light after UV light permeability phase mask plate
Interference light, optical fiber is exposed, fiber core refractive index is produced cyclically-varying, so as to Fiber Bragg Grating 2 on optical fiber.It is logical
Fiber grating 2 can be inscribed on an ordinary optic fibre by crossing aforesaid way, and this root optical fiber is then turned to one or more rings
Shape optical fiber 1.
Preferably, the soft fixation kit is heat conductive silica gel, and the optical fibre ring 1 is fixedly installed by heat conductive silica gel
On the surface of battery cell 3.Can also be by the fixation kit stationary annular optical fiber 1 of other materials, as long as enabling to optical fiber light
Grid 2 are in contact with the surface of battery cell 3 and do not cause damage to optical fibre ring 1 and fiber grating 2.
Preferably, more than one fiber grating 2 is provided with the optical fibre ring 1, for improving measurement accuracy.Specifically
, four fiber gratings 2 are provided with an optical fibre ring 1.
Further, since be provided with fiber grating 2 on optical fibre ring 1, thus optical fibre ring 1 can be divided into fiber grating region and
Non- fiber grating region, fiber grating region is to have the region of fiber grating 2 on optical fibre ring 1, rather than fiber grating region is
There is no the region of fiber grating 2 on optical fibre ring 1.Optical fibre ring 1 is provided with coat in non-fiber grating region, and in optical fiber
Grating region is then bare fibre, is not provided with coat, so that fiber grating 2 is directly in contact with the surface of battery cell 3.
Specifically, the temperature measuring equipment 4 includes DBR laser and photoelectricity demodulator, and DBR laser is distributed cloth
Glug reflection laser, Distributed Bragg Reflector.The present invention operation principle be：DBR laser sends sharp
Optical signal, after laser signal is passed in optical fibre ring 1, by the way that swashing for the corresponding wavelength of fiber grating 2 can be reflected during fiber grating 2
Optical signal；Photoelectricity demodulator receives the laser signal reflected, and sends laser signal with DBR laser and contrasted,
Thermometric can be completed according to center wavelength shift amount.When an optical fiber turns to multiple optical fibre rings 1, different optical fibre rings 1
Centre wavelength corresponding to interior fiber grating 2, determined by centre wavelength corresponding to fiber grating 2, so as to further determine that
Corresponding battery.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (6)
- A kind of 1. battery temperature sensor, it is characterised in that：Including optical fibre ring (1), light is provided with the optical fibre ring (1) Fine grating (2), the optical fibre ring (1) are fixedly installed on battery cell (3) surface by soft fixation kit；Also include temperature measuring equipment (4), the optical fibre ring (1) is connected with the temperature measuring equipment (4).
- A kind of 2. battery temperature sensor according to claim 1, it is characterised in that：The optical fibre ring (1) is provided with Multiple, multiple optical fibre rings (1) are formed by an optical fiber coiling, and each optical fibre ring (1) is separately positioned on different battery lists Body (3) surface.
- A kind of 3. battery temperature sensor according to claim 1, it is characterised in that：Temperature measuring equipment (4) bag Include DBR laser and photoelectricity demodulator.
- A kind of 4. battery temperature sensor according to claim 1, it is characterised in that：Set on the optical fibre ring (1) There is more than one fiber grating (2).
- A kind of 5. battery temperature sensor according to claim 1, it is characterised in that：The optical fibre ring (1) is in optical fiber Grating region is not provided with coat, and the optical fibre ring (1) is provided with coat in non-fiber grating region.
- 6. according to a kind of battery temperature sensor described in claim any one of 1-5, it is characterised in that：The fixation kit is Heat conductive silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711052662.3A CN107677391A (en) | 2017-10-30 | 2017-10-30 | A kind of battery temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711052662.3A CN107677391A (en) | 2017-10-30 | 2017-10-30 | A kind of battery temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107677391A true CN107677391A (en) | 2018-02-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711052662.3A Pending CN107677391A (en) | 2017-10-30 | 2017-10-30 | A kind of battery temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107677391A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567598A (en) * | 2019-07-17 | 2019-12-13 | 北京交通大学 | high-temperature superconducting coil temperature sensing structure and high-temperature superconducting coil temperature monitoring method |
| CN110954243A (en) * | 2019-12-19 | 2020-04-03 | 北京理工大学 | Battery monomer temperature acquisition system |
| CN111815924A (en) * | 2020-08-21 | 2020-10-23 | 中国民用航空飞行学院 | Thermal disaster early warning system and method for power lithium battery of all-electric drive fire truck in airport |
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|---|---|---|---|---|
| CN1715848A (en) * | 2005-07-22 | 2006-01-04 | 北京嘉润森盛光纤传感科技有限公司 | Optical iber grating temperature sensor |
| CN202720372U (en) * | 2012-08-17 | 2013-02-06 | 苏州南智传感科技有限公司 | Tight sleeve fiber bragg grating string sensing fiber cable |
| CN104596941A (en) * | 2015-01-20 | 2015-05-06 | 重庆理工大学 | Composite maximum-dip-angle fiber bragg grating biochemical sensor and production method thereof |
| CN205280240U (en) * | 2015-12-04 | 2016-06-01 | 中国计量学院 | Battery group temperature measuring device |
| CN105841842A (en) * | 2016-05-18 | 2016-08-10 | 小牛动力（武汉）新能源技术有限公司 | Battery temperature monitoring device based on optical fiber sensor network |
| CN106410307A (en) * | 2016-10-13 | 2017-02-15 | 江汉大学 | Lithium battery safety real-time monitoring system |
| CN206340633U (en) * | 2016-12-28 | 2017-07-18 | 谢建毫 | A kind of automobile batteries device for detecting temperature |
| CN207280632U (en) * | 2017-10-30 | 2018-04-27 | 深圳伊讯科技有限公司 | A kind of battery temperature sensor |
-
2017
- 2017-10-30 CN CN201711052662.3A patent/CN107677391A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1715848A (en) * | 2005-07-22 | 2006-01-04 | 北京嘉润森盛光纤传感科技有限公司 | Optical iber grating temperature sensor |
| CN202720372U (en) * | 2012-08-17 | 2013-02-06 | 苏州南智传感科技有限公司 | Tight sleeve fiber bragg grating string sensing fiber cable |
| CN104596941A (en) * | 2015-01-20 | 2015-05-06 | 重庆理工大学 | Composite maximum-dip-angle fiber bragg grating biochemical sensor and production method thereof |
| CN205280240U (en) * | 2015-12-04 | 2016-06-01 | 中国计量学院 | Battery group temperature measuring device |
| CN105841842A (en) * | 2016-05-18 | 2016-08-10 | 小牛动力（武汉）新能源技术有限公司 | Battery temperature monitoring device based on optical fiber sensor network |
| CN106410307A (en) * | 2016-10-13 | 2017-02-15 | 江汉大学 | Lithium battery safety real-time monitoring system |
| CN206340633U (en) * | 2016-12-28 | 2017-07-18 | 谢建毫 | A kind of automobile batteries device for detecting temperature |
| CN207280632U (en) * | 2017-10-30 | 2018-04-27 | 深圳伊讯科技有限公司 | A kind of battery temperature sensor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567598A (en) * | 2019-07-17 | 2019-12-13 | 北京交通大学 | high-temperature superconducting coil temperature sensing structure and high-temperature superconducting coil temperature monitoring method |
| CN110954243A (en) * | 2019-12-19 | 2020-04-03 | 北京理工大学 | Battery monomer temperature acquisition system |
| CN110954243B (en) * | 2019-12-19 | 2020-09-11 | 北京理工大学 | Battery monomer temperature acquisition system |
| CN111815924A (en) * | 2020-08-21 | 2020-10-23 | 中国民用航空飞行学院 | Thermal disaster early warning system and method for power lithium battery of all-electric drive fire truck in airport |
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| PB01 | Publication | ||
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| CB02 | Change of applicant information |
Address after: 518101 Building 4A, No. 6 Tingwei Industrial Park, Liufang Road, 67 District, Xin'an Street, Baoan District, Shenzhen City, Guangdong Province Applicant after: SHENZHEN YIXUN TECHNOLOGY Co.,Ltd. Address before: 518101 B District, 2 building six, Yang Bei industrial district, Huang Tian community, Baoan District City, Shenzhen, Guangdong Applicant before: SHENZHEN YIXUN TECHNOLOGY Co.,Ltd. |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180209 |
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| WD01 | Invention patent application deemed withdrawn after publication |