CN209266526U - A kind of batteries of electric automobile group temp measuring system - Google Patents
A kind of batteries of electric automobile group temp measuring system Download PDFInfo
- Publication number
- CN209266526U CN209266526U CN201821749117.XU CN201821749117U CN209266526U CN 209266526 U CN209266526 U CN 209266526U CN 201821749117 U CN201821749117 U CN 201821749117U CN 209266526 U CN209266526 U CN 209266526U
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- Prior art keywords
- fiber
- measuring system
- battery
- battery pack
- temp measuring
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model provides a kind of batteries of electric automobile group temp measuring system, including battery pack, optical fiber, temp measuring system, it is characterised in that: the temp measuring system includes controller, demodulator of PM signal PM；Multiple fiber-optic grating sensors are provided on the optical fiber；The demodulator of PM signal PM is connect with the controller and the fiber-optic grating sensor respectively；The battery pack includes multiple battery cells arranged side by side, and the fiber-optic grating sensor is arranged in battery pack on each battery cell, and the fiber-optic grating sensor is for measuring battery pack temperature.It is existing inconvenient to battery temperature detection measurement method that the utility model solves, and provides a kind of batteries of electric automobile group temp measuring system, can in independent measurement battery pack each battery cell temperature.
Description
Technical field
The utility model relates to battery pack temperature field of measuring technique, and in particular to a kind of batteries of electric automobile group thermometric system
System.
Background technique
With the extensive use of electric car, requirement of the people to cell safety is also higher and higher.Battery pack by it is multiple simultaneously
The battery cell composition of row's setting will affect the normal work of battery pack, serious meeting when a battery cell breaks down
Cause the explosion of entire battery case.Therefore, battery temperature measures the parameter of battery status as one, is the important of cell safety
Monitoring object.Existing temperature sensor is excessive there are volume and encapsulates the problems such as complicated, is so limited, the prior art can only be right
The bulk temperature of battery case is monitored, and the temperature monitoring of otherness can not be done to battery cell each in battery pack.
Utility model content
It is existing inconvenient to battery temperature detection measurement method to solve, provide a kind of batteries of electric automobile group thermometric system
System, can in independent measurement battery pack each battery cell temperature.
The utility model provides a kind of batteries of electric automobile group temp measuring system, including battery pack, optical fiber, temp measuring system,
Be characterized in that: the temp measuring system includes controller, demodulator of PM signal PM；Multiple optical fiber grating sensings are provided on the optical fiber
Device；The demodulator of PM signal PM is connect with the controller and the fiber-optic grating sensor respectively；
The battery pack includes multiple battery cells arranged side by side, and the fiber-optic grating sensor is arranged in battery pack
On each battery cell, the fiber-optic grating sensor is for measuring battery pack temperature.
Further, the fiber-optic grating sensor in different battery packs on each battery cell passes through the optical fiber phase
It connects in same optical path.
Further, the fiber-optic grating sensor is arranged in different battery packs by way of mutually matched thread gluing
On each battery cell.
Further, the demodulator of PM signal PM includes DBR laser and photoelectricity demodulator.
Further, controller includes MCU, display, and the MCU is connect with display and the DBR laser respectively.
The utility model, which has the benefit that, is provided with multiple fiber gratings on optical fiber, by mutually matched viscous
Fiber grating is fixed at each battery cell surface in battery pack by the mode of button, reduces the volume of device, has encapsulation
Simple advantage, while the installation of each battery pack in battery case is not influenced, individually battery cell each in battery pack is carried out
Temperature monitoring can carry out the temperature monitoring of otherness to each battery cell in battery pack.To each in battery pack
While the state of temperature of battery cell carries out real-time monitoring, can when there is temperature anomaly in the battery cell in battery pack and
The rescue of Shi Faxian, further progress early stage handle work, avoid the occurrence of large-scale damage.
Detailed description of the invention
Fig. 1 is the utility model batteries of electric automobile group temp measuring system structural schematic block diagram.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1, a kind of batteries of electric automobile group temp measuring system of the utility model embodiment, including battery pack 1, light
Fine 2, temp measuring system, temp measuring system includes controller 5, demodulator of PM signal PM 4；Multiple fiber-optic grating sensors are provided on optical fiber 1
3；Demodulator of PM signal PM 4 is connect with controller 5 and fiber-optic grating sensor 3 respectively；Battery pack 1 includes multiple batteries arranged side by side
Monomer, fiber-optic grating sensor 3 are arranged in battery pack 1 on each battery cell, and fiber-optic grating sensor 3 is for measuring battery
1 temperature of group.
Multiple fiber-optic grating sensors 3 are provided on optical fiber 2, battery pack 1 includes multiple battery cells arranged side by side, light
Fiber grating sensor 3 is arranged in battery pack 1 on each battery cell, and fiber-optic grating sensor 3 is for measuring 1 temperature of battery pack
Degree.The fiber-optic grating sensor 3 in different battery packs on each battery cell is interconnected on same by the optical fiber 2
In optical path.Each battery cell in different battery packs is arranged in fiber-optic grating sensor 3 by way of mutually matched thread gluing
On.Demodulator of PM signal PM packet 4 includes DBR laser and photoelectricity demodulator.Controller 5 include MCU, display, MCU respectively with display
It is connected with DBR laser.
It is provided with multiple fiber-optic grating sensors 3 on optical fiber 2, the process of fiber-optic grating sensor 3 is portrayed on optical fiber 2
Are as follows: first optical fiber 2 is carried out to carry hydrogen processing, the interference light pair then formed using the diffraction light after UV light permeability phase mask plate
Optical fiber 1 is exposed, and so that fiber core refractive index is generated cyclically-varying Fiber Bragg Grating sensor 3, can be formed on optical fiber 2
Fiber-optic grating sensor 3.
In optical fiber 2 equidistantly or by a certain number of fiber-optic grating sensors 3 of spacing demand inscription, one end of optical fiber 2
It is communicated with demodulator of PM signal PM 4, each battery list in different battery packs is arranged in the other end by way of mutually matched thread gluing
On body, guarantee that at least one fiber-optic grating sensor 3 of the optical fiber 2 on each battery cell surface in battery pack 1, fiber grating pass
Sensor 3 is directly obtained the temperature signal of battery cell after contacting with battery cell surface each in battery pack 1, pass through optical fiber 2
It is back to demodulator of PM signal PM 4 to be demodulated, obtains the surface temperature of each battery cell in battery pack 1.Further, getting
The surface temperature of each battery cell compared with preset reliability temperature threshold, whether judge battery cell surface real time temperature
Normally.Such as judge that normally, temperature data is stored；Such as judge exception, then triggers external warning device work, and will be abnormal warm
Degree and temperature position carry out pushing to controller 5 simultaneously, then abnormal temperature event data is stored.
It is obtained through the above technical solutions, the surface that optical fiber 2 is placed on each battery cell in battery pack 1 can measure
The real time temperature of each battery cell in entire battery pack 1.Such as 2 failure of battery cell failure or optical fiber, can directly take
Battery cell or optical fiber 2 are replaced out, quickly solve failure problems, are had the advantages that be easily installed and be safeguarded.
Specifically, demodulator of PM signal PM 4 includes DBR laser and photoelectricity demodulator.Controller 5 includes MCU, display, MCU
It is connect respectively with display and DBR laser.The working principle of demodulator of PM signal PM are as follows: DBR laser issues laser signal, laser
Signal can reflect the laser signal of 3 corresponding wavelength of fiber-optic grating sensor when passing through fiber-optic grating sensor 3；Photoelectricity demodulator
Reflected laser signal is received, and issues laser signal with fiber-optic grating sensor 3 and compares, according to central wavelength
Thermometric can be completed in offset.Different fiber-optic grating sensors 3 corresponding central wavelength is different, is determined by central wavelength pair
3 position of fiber-optic grating sensor answered, to further determine that the battery cell position in corresponding battery pack 1.
It is to combine specific preferred embodiment further detailed description of the utility model as described above, it cannot
Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field
For personnel, under the premise of not departing from the utility model design and intension, a number of simple deductions or replacements can also be made, all
It shall be regarded as belonging to the protection scope of the utility model.
Claims (5)
1. a kind of batteries of electric automobile group temp measuring system, including battery pack (1), optical fiber (2), temp measuring system, it is characterised in that: institute
Stating temp measuring system includes controller (5), demodulator of PM signal PM (4)；Multiple fiber-optic grating sensors are provided on the optical fiber (2)
(3)；The demodulator of PM signal PM (4) connect with the controller (5) and the fiber-optic grating sensor (3) respectively；
The battery pack (1) includes multiple battery cells arranged side by side, and the fiber-optic grating sensor (3) is arranged in battery pack
(1) on each battery cell, the fiber-optic grating sensor (3) is for measuring battery pack temperature.
2. a kind of batteries of electric automobile group temp measuring system according to claim 1, it is characterised in that: different battery packs (1)
The fiber-optic grating sensor (3) on interior each battery cell is interconnected in same optical path by the optical fiber (2).
3. a kind of batteries of electric automobile group temp measuring system according to claim 1, it is characterised in that: the fiber grating passes
Sensor (3) is arranged in different battery packs (1) on each battery cell by way of mutually matched thread gluing.
4. a kind of batteries of electric automobile group temp measuring system according to claim 1, it is characterised in that: the demodulator of PM signal PM
It (4) include DBR laser and photoelectricity demodulator.
5. a kind of batteries of electric automobile group temp measuring system according to claim 4, it is characterised in that: controller (5) includes
MCU, display, the MCU are connect with display and the DBR laser respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821749117.XU CN209266526U (en) | 2018-10-26 | 2018-10-26 | A kind of batteries of electric automobile group temp measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821749117.XU CN209266526U (en) | 2018-10-26 | 2018-10-26 | A kind of batteries of electric automobile group temp measuring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209266526U true CN209266526U (en) | 2019-08-16 |
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ID=67559050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821749117.XU Active CN209266526U (en) | 2018-10-26 | 2018-10-26 | A kind of batteries of electric automobile group temp measuring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209266526U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111224038A (en) * | 2020-03-24 | 2020-06-02 | 上海豫源电力科技有限公司 | Battery module and assembling method thereof |
| WO2021173287A1 (en) * | 2020-02-24 | 2021-09-02 | Sensata Technologies, Inc. | Optical communications in a battery pack |
-
2018
- 2018-10-26 CN CN201821749117.XU patent/CN209266526U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021173287A1 (en) * | 2020-02-24 | 2021-09-02 | Sensata Technologies, Inc. | Optical communications in a battery pack |
| US11476951B2 (en) | 2020-02-24 | 2022-10-18 | Sensata Technologies, Inc. | Optical communications in a battery pack |
| CN111224038A (en) * | 2020-03-24 | 2020-06-02 | 上海豫源电力科技有限公司 | Battery module and assembling method thereof |
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