CN206002225U - The fiber grating network arrangement structure of internal battery pack - Google Patents
The fiber grating network arrangement structure of internal battery pack Download PDFInfo
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- CN206002225U CN206002225U CN201620450738.2U CN201620450738U CN206002225U CN 206002225 U CN206002225 U CN 206002225U CN 201620450738 U CN201620450738 U CN 201620450738U CN 206002225 U CN206002225 U CN 206002225U
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- fiber grating
- battery pack
- arrangement structure
- network arrangement
- battery core
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Abstract
The utility model provides a kind of fiber grating network arrangement structure of internal battery pack, including：Comprising at least battery pack of a battery core, the fiber grating being placed in inside each battery core, the time delay optical fiber being placed between battery core and demodulation module, the demodulation module can launch modulating light pulse signal, and can go out its optical wavelength to the optical signal demodulation for reflecting.The fiber grating network arrangement structure of internal battery pack of the present utility model, inside each battery core, needs monitoring position to be equipped with fiber grating, the temperature inside each battery core and stress can be monitored；Time delay optical fiber is set between different battery cores, the transducing signal of different battery cores can be made a distinction.
Description
Technical field
The utility model is related to the sensory field that fiber grating is applied to inside battery monitoring, and more particularly to fiber grating exists
Internal battery pack network arrangement structure.
Background technology
Due to the good anti-electromagnetic-radiation of fiber grating itself, passive, high sensing sensitivity, the feature of high position precision,
Optical fiber grating sensing network is applied under particular surroundings by substantial amounts of, such as the field such as battery, oil and gas pipes, oil exploration.In light
In the middle of the sensing network of fine grating, wavelength division multiplexed network and time division multiplex network is most commonly used that.Optical fiber based on wavelength-division multiplex
Grating sensing network, the interstitial content of its sensing receive the impact of light source bandwidth and grating dynamic range, therefore general restriction
On the order of magnitude of dozens of.And number can be reached based on the number of time-multiplexed its network node of optical fiber grating sensing network
Hundred thousands of, but spatial resolution is limited in meter level.
On the other hand, today's society, battery pack are widely used, and multiple battery are integrated together can be big
The lifting battery capacity of width, reduces volume.But, the safety problem of battery is present always, and overheated, expansion, blast etc. can all be made
Become some losses difficult to the appraisal and injury.The security monitoring field that optical fiber grating sensing network is applied to battery had had
Some cases, but current scheme is all to monitor internal battery pack, the temperature outside battery core and the change of stress mostly, and
Occur material expand to battery core inside and overheated situation is not monitored.For battery pack, in single battery core
The fault in portion is huge for the impact of whole battery pack efficiency, it is therefore desirable to design a kind of new monitor mode, monitoring electricity
The state of pond group each battery core internal.
Utility model content
The purpose of this utility model is to provide a kind of fiber grating network arrangement structure of internal battery pack, it is intended to be used for
Solve the problems, such as that existing battery detection network cannot monitor each battery core internal state.
The utility model is realized in：
The utility model provides a kind of fiber grating network arrangement structure of internal battery pack, it is characterised in that include：Bag
Containing at least battery pack of a battery core, the fiber grating being placed in inside each battery core, the time delay optical fiber being placed between battery core and solution
Mode transfer block, the demodulation module can launch modulating light pulse signal, and can go out which to the optical signal demodulation for reflecting
Optical wavelength.
Further, mutually completely cut off between the demodulation module and the battery core.
Further, the fiber grating inside each battery core is embedded in the middle of the process that the battery core makes.
Further, multiple fiber gratings are provided with inside each battery core, the plurality of fiber grating is multiple using wavelength-division
Mode is arranged, i.e., the wavelength of the plurality of fiber grating is different.
Further, the time delay optical fiber is arranged by the way of cincture shape.
Further, within the length of the time delay optical fiber is limited in 20m.
Further, entirely the internal battery pack adopts the continuous simple optical fiber for inscribing optical grating construction.
The utility model has the advantages that：
The fiber grating network arrangement structure of internal battery pack of the present utility model, needs monitoring portion inside each battery core
Position is equipped with fiber grating, and the temperature inside each battery core and stress can be monitored；Time delay is set between different battery cores
Optical fiber, can make a distinction to the transducing signal of different battery cores.
Description of the drawings
The schematic diagram of the fiber grating network arrangement structure of the internal battery pack that Fig. 1 is provided for the utility model embodiment.
It is as follows that drawing reference numeral represents implication：
1- demodulation module, 2- battery core, 3- fiber grating, 4, time delay optical fiber.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The all other embodiment for being obtained, belongs to the scope of the utility model protection.
Such as Fig. 1, the utility model embodiment provide a kind of 3 network arrangement structure of fiber grating of internal battery pack, including：
Battery pack comprising two battery cores 2, be placed in inside battery core 2 need monitor position fiber grating 3, be placed between different battery cores 2
Time delay optical fiber 4 and demodulation module 1.
The demodulation module 1 is the conventional modules in optical fiber sensing system, and which mainly includes photodetector, data and adopts
Truck, signal processing apparatus.Which can launch modulating light pulse signal, and can go out which to the optical signal demodulation for reflecting
Optical wavelength.Mutually completely cut off between the demodulation module 1 and the battery core 2, optical signal can be received and dispatched, it is ensured that sensing and demodulating
The sourceless characteristic at end.
As Fig. 1, entirely the internal battery pack is using the continuous simple optical fiber for inscribing optical grating construction.Each battery core 2
Internal fiber grating 3 is embedded in the middle of the process that the battery core 2 makes, and is placed in needing at the point of monitoring.Each institute
State and multiple fiber gratings 3 inside battery core 2, are provided with, the plurality of fiber grating 3 is arranged by the way of wavelength-division multiplex, i.e., described many
The wavelength of individual fiber grating 3 is different, by different instructions difference fiber grating 3 and its location of wavelength.Each
Fiber grating 3 inside the battery core 2 can carry out temperature to the material inside battery core 2, the electrode of battery core 2 and battery housing
Degree monitoring.Simultaneously for the monitoring of the material inside battery core 2, fiber grating 3 is uniformly arranged in inside battery core 2 as far as possible, so as to
The heat distribution of 2 internal material of whole battery core and stress distribution can be monitored.
What the time delay optical fiber 4 was rationally compact is arranged between battery core 2, and its length designs energy by rational demodulation part
Enough closely it is inserted between different battery cores 2, the time delay optical fiber 4 is subtracted with trying one's best using arranging by the way of shape
Volume that few time delay optical fiber 4 is arranged simultaneously reduces the loss completely of time delay optical fiber 4, the length of the time delay optical fiber 4 be limited in 20m with
Interior.The time delay optical fiber 4 can make time between different battery cores 2 by reflected light reception of impulse to make a distinction.
Preferred embodiment of the present utility model is the foregoing is only, not in order to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent substitution and improvement that is made etc., should be included in the utility model
Protection domain within.
Claims (7)
1. the fiber grating network arrangement structure of a kind of internal battery pack, it is characterised in that include：Electricity comprising an at least battery core
Pond group, the fiber grating being placed in inside each battery core, the time delay optical fiber being placed between battery core and demodulation module, the solution mode transfer
Block can launch modulating light pulse signal, and can go out its optical wavelength to the optical signal demodulation for reflecting.
2. the fiber grating network arrangement structure of internal battery pack as claimed in claim 1, it is characterised in that：The solution mode transfer
Mutually completely cut off between block and the battery core.
3. the fiber grating network arrangement structure of internal battery pack as claimed in claim 1, it is characterised in that：Each electricity
The fiber grating of core inner is embedded in the middle of the process that the battery core makes.
4. the fiber grating network arrangement structure of internal battery pack as claimed in claim 1, it is characterised in that：Each electricity
Core inner is provided with multiple fiber gratings, and the plurality of fiber grating is arranged by the way of wavelength-division multiplex, i.e., the plurality of optical fiber
The wavelength of grating is different.
5. the fiber grating network arrangement structure of internal battery pack as claimed in claim 1, it is characterised in that：The time delay light
Fibre is arranged by the way of cincture shape.
6. the fiber grating network arrangement structure of internal battery pack as claimed in claim 1, it is characterised in that：The time delay light
Within fine length is limited in 20m.
7. the fiber grating network arrangement structure of internal battery pack as claimed in claim 1, it is characterised in that：The whole electricity
Using the continuous simple optical fiber for inscribing optical grating construction inside the group of pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620450738.2U CN206002225U (en) | 2016-05-18 | 2016-05-18 | The fiber grating network arrangement structure of internal battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620450738.2U CN206002225U (en) | 2016-05-18 | 2016-05-18 | The fiber grating network arrangement structure of internal battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206002225U true CN206002225U (en) | 2017-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620450738.2U Expired - Fee Related CN206002225U (en) | 2016-05-18 | 2016-05-18 | The fiber grating network arrangement structure of internal battery pack |
Country Status (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841843A (en) * | 2016-05-18 | 2016-08-10 | 小牛动力（武汉）新能源技术有限公司 | Optical fiber grating network arrangement structure in battery pack |
| CN107907240A (en) * | 2017-12-01 | 2018-04-13 | 合肥国盛电池科技有限公司 | Power battery pack self-shield long-distance management system |
| CN111102934A (en) * | 2019-12-25 | 2020-05-05 | 上海豫源电力科技有限公司 | Method for monitoring expansion and deformation of battery cell |
-
2016
- 2016-05-18 CN CN201620450738.2U patent/CN206002225U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841843A (en) * | 2016-05-18 | 2016-08-10 | 小牛动力（武汉）新能源技术有限公司 | Optical fiber grating network arrangement structure in battery pack |
| CN107907240A (en) * | 2017-12-01 | 2018-04-13 | 合肥国盛电池科技有限公司 | Power battery pack self-shield long-distance management system |
| CN111102934A (en) * | 2019-12-25 | 2020-05-05 | 上海豫源电力科技有限公司 | Method for monitoring expansion and deformation of battery cell |
| CN111102934B (en) * | 2019-12-25 | 2021-03-26 | 傲普(上海)新能源有限公司 | Method for monitoring expansion and deformation of battery cell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170308 Termination date: 20210518 |
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| CF01 | Termination of patent right due to non-payment of annual fee |