CN206134865U - Electric automobile power battery box weeping detecting system - Google Patents
Electric automobile power battery box weeping detecting system Download PDFInfo
- Publication number
- CN206134865U CN206134865U CN201621106440.6U CN201621106440U CN206134865U CN 206134865 U CN206134865 U CN 206134865U CN 201621106440 U CN201621106440 U CN 201621106440U CN 206134865 U CN206134865 U CN 206134865U
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- China
- Prior art keywords
- battery box
- power battery
- signal processing
- processing unit
- audion
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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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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to an electric automobile power battery box weeping detecting system, including establishing a plurality of weeping detection device and signal processing unit and the alarm unit in power battery box, gaseous pump and the gas sensor of gathering in weeping detection device includes the body and locates the body, the front end of body is equipped with the air inlet, the rear end of body is equipped with the gas outlet, be equipped with the filter screen on the air inlet, the rear at the air inlet is established to the gaseous pump of gathering, gas sensor establishes and gathers between pump and the gas outlet at gas, gas sensor's output and signal processing unit's input link to each other, signal processing unit's the output and the control end of alarm unit link to each other. The utility model discloses a whether the battery has and leak to take place in the gas sensor real -time detection battery box, in case find the leakage and touch the alert unit of send a telegram through signal processing unit promptly and report to the police, makes driver and relevant personnel can in time make corresponding processing, improves driving safety.
Description
Technical field
This utility model is related to electric automobile manufacture field, more particularly to a kind of power battery box of electric vehicle leakage detection
System.
Background technology
With the development of new forms of energy, lithium ion battery is applied on electric automobile in a large number, in order that charging, changing electricity more rapidly
And it is convenient, the electrokinetic cell on electric automobile is general all in the form of battery case, will multiple lithium ion batteries be installed to
Modular power battery is constituted in casing.At present, power battery pack is mainly assembled using Soft Roll polymer Li-ion battery, its group
Three sides into the aluminum plastic membrane shell of cell all pass through hot-press sealed, there is the risk of the easy leakage in plastic packaging side.And it is electronic
Automobile inevitably shakes in the process of moving, and phase mutual friction and extruding between cell and module housing is easily led
Cause damage of aluminum plastic membrane shell and electrolyte leakage occur, the loss of electrolyte can make battery failure capacity attenuation, whole so as to affect
The performance of individual power battery pack, at the same leakage electrolyte also can corrosion cell casing and circuit system, there is great safety
Hidden danger.
The content of the invention
This utility model mainly solves the vibrations that electric automobile occurs in the process of moving and easily causes cell and module
Phase mutual friction and extruding between shell, are easily caused cell damage of aluminum plastic membrane shell and electrolyte leakage occur, electrolyte
Loss can make battery failure capacity attenuation, so as to affect the performance of whole power battery pack, at the same leakage electrolyte also can
Corrosion cell casing and circuit system, the technical problem that there is great potential safety hazard；A kind of electric automobile power battery is provided
Case leakage detection system, whether it can have leakage by real-time detection battery during the use of power battery pack, once look into
Alarm signal is sent to leakage, to remind related personnel to make respective handling in time, travel safety is improved.
What above-mentioned technical problem of the present utility model was mainly addressed by following technical proposals：This utility model bag
Several apparatus for testing weeping and signal processing unit and alarm unit being located in power battery box are included, apparatus for testing weeping
Outfan is connected with the input of signal processing unit, and the outfan of signal processing unit is connected with the control end of alarm unit.
Signal processing unit may be mounted in battery case, also may be installed outside battery case, and alarm unit may be installed battery case outside,
Also may be installed on the instrumental panel of electric car cab.Electrokinetic cell is in apparatus for testing weeping real-time detection power battery box
It is no to have electrolyte to leak out, once detected electrolyte leak, the outfan of apparatus for testing weeping export detection signal to
The input of signal processing unit, signal processing unit sends control end of the control signal to alarm unit through processing, and starts
Report to the police, remind related personnel to make respective handling in time, it is ensured that have repairing and the process time of abundance, improve electrokinetic cell and electricity
Electrical automobile travel safety.Signal processing unit can be realized using microcontroller, single-chip microcomputer or digital signal processing circuit.
Preferably, described apparatus for testing weeping includes body and gas collecting pump and gas sensing in body
Device, the front end of body is provided with air inlet, and the rear end of body is provided with gas outlet, and air inlet is provided with drainage screen, and described gas is adopted
Collection pump is located at the rear of described air inlet, and described gas sensor is located between gas collecting pump and gas outlet, and gas is passed
The outfan of sensor is connected with the input of described signal processing unit.Gas collecting pump inhales the gas in power battery box
Enter body, the solid particles such as dust, impurity are fallen by filter screen filtration, the gas for sucking body is through gas sensor and gentle
The probe of body sensor is fully contacted, then discharges from gas outlet, when the electrokinetic cell in power battery box is leaked, leakage
Escaping gas in the electrolyte for going out is (such as C2H4、CH4、C2H6、HF、H2And the imflammable gas such as CO) will be by gas sensor
Detect, be converted into conveying signal processing unit after the signal of telecommunication, improve the susceptiveness and reliability of detection.Gas sensor can be adopted
With appointing in electrochemical gas sensor, semiconductor gas sensor, ultraviolet gas sensor and infrared gas sensor
What one or more sensor, with the further sensitivity for improving detection.
Preferably, described alarm unit includes audion Q1, audion Q2, resistance R11～resistance R14 and luminous two
Pole pipe D, buzzer LS, resistance R11, equal output terminals A larm with described signal processing unit in one end of resistance R13 are connected,
The other end of resistance R11 is connected with the base stage of audion Q1, and the other end of resistance R13 is connected with the base stage of audion Q2, three poles
The grounded emitter of pipe Q1, the colelctor electrode of audion Q1 is connected with the negative pole of buzzer LS, the positive pole Jing resistance R12 of buzzer LS
Voltage VCC is met, the grounded emitter of audion Q2, the colelctor electrode of audion Q2 is connected with the negative pole of light emitting diode D, luminous two
The positive pole Jing resistance R14 of pole pipe D meet voltage VCC.When the induced signal that signal processing unit is received exceedes a certain setting value,
Then the alarm signal output ends of signal processing unit are high level, and audion Q1 and audion Q2 is turned on, and buzzer LS obtains electric
Go out chimes of doom, light emitting diode is lighted.Reported to the police using sound-light double, reported to the police more eye-catching, the reliability of warning is higher.Certainly report to the police
Unit may also be employed the only audible alarm of buzzer or the only light warning of light emitting diode.
Preferably, described signal processing unit adopts STM32F107 microcontrollers.This microcontroller chip is integrated with
Various High performance industrial standard interfaces, compatibility is good, can easily adapt to more applications.Performance is remarkable, and disposal ability is strong, can
It is high by property.
Preferably, described apparatus for testing weeping has 4～8, multiple apparatus for testing weeping are separately mounted to described
On the side wall of power battery box, at least one apparatus for testing weeping on each side wall of power battery box.Realize gas in casing
Body-internal-circulation, detection range is wide, does not stay dead angle, improves detection reliability and degree of accuracy.
The beneficial effects of the utility model are：Whether can let out real-time detection battery during the use of power battery pack
Leakage occurs, once finding leakage sends alarm signal, enables driver or related personnel to make respective handling in time, improves row
Car safety.
Description of the drawings
Fig. 1 is a kind of circuit theory attachment structure block diagram of the present utility model.
Fig. 2 is a kind of structural representation of apparatus for testing weeping distributed architecture in power battery box in this utility model.
Fig. 3 is a kind of structural representation of apparatus for testing weeping in this utility model.
Fig. 4 is a kind of circuit theory diagrams of alarm unit in this utility model.
1. power battery box in figure, 2. signal processing unit, 3. alarm unit, 4. apparatus for testing weeping, 5. body, 6. gas
Body gathers pump, 7. gas sensor, 8. air inlet, 9. gas outlet, 10. drainage screen, 11.ECU systems.
Specific embodiment
Below by embodiment, and accompanying drawing is combined, the technical solution of the utility model is described in further detail.
Embodiment：A kind of power battery box of electric vehicle leakage detection system of the present embodiment, as shown in figure 1, including peace
Six apparatus for testing weeping 4 being mounted in power battery box of electric vehicle 1 and a signal processing unit 2 and installed in electronic vapour
Alarm unit 3 on car bridge instrumentation disk, wherein four apparatus for testing weeping are separately mounted to four angles of power battery box 1
Fall place, and in vertically-mounted state, other two apparatus for testing weeping be separately mounted to two of power battery box it is longer
On the wall of side, and in state is horizontally mounted, as shown in Figure 2.The outfan of six apparatus for testing weeping 4 respectively with signal processing list
Six inputs of unit 2 are connected, and the outfan of signal processing unit 2 is connected with the control end of alarm unit 3.As shown in figure 3, leakage
Liquid detection means 4 includes one section of circular body 5 and gas collecting pump 6 and gas sensor 7 in body 5, body 5
There is gas outlet 9 rear end that there is air inlet 8, body 5 front end, and drainage screen 10 is packaged with air inlet 8, and gas collecting pump 6 is arranged on
The rear of air inlet 8, gas sensor 7 is arranged between gas collecting pump 6 and gas outlet 9, and the outfan of gas sensor 7 is
For the outfan of apparatus for testing weeping 4, it passes through wire and is connected with the input of signal processing unit 2.In body
Gas sensor 7 can be electrochemical gas sensor, semiconductor gas sensor, ultraviolet gas sensor or infrared ray gas
Body sensor, it is also possible to installed from two kinds in these sensors, three kinds or four kinds, with improve detection susceptiveness and
Reliability.In the present embodiment, as shown in figure 4, signal processing unit 2 adopts STM32F107 microcontrollers, alarm unit 3 to include
Audion Q1, audion Q2, resistance R11～resistance R14 and light emitting diode D, buzzer LS, resistance R11, the one of resistance R13
End is connected with output terminals A larm of signal processing unit 2, and the other end of resistance R11 is connected with the base stage of audion Q1, resistance
The other end of R13 is connected with the base stage of audion Q2, the grounded emitter of audion Q1, the colelctor electrode and buzzer of audion Q1
The negative pole of LS is connected, and the positive pole Jing resistance R12 of buzzer LS meet voltage VCC, the grounded emitter of audion Q2, audion Q2's
Colelctor electrode is connected with the negative pole of light emitting diode D, and the positive pole Jing resistance R14 of light emitting diode D meet voltage VCC.Work as signal processing
Unit from the signal that gas sensor is received judge that battery has leakage when, then output terminals A larm of signal processing unit is
High level, audion Q1 and audion Q2 are turned on, buzzer LS obtain it is electric send chimes of doom, light emitting diode D is lighted.Start acousto-optic
Report to the police, alarm form is more eye-catching, also improves the reliability of warning.
The course of work：Gas collecting pump by the gas inspiration body in power battery box, by filter screen filtration fall dust,
The solid particles such as impurity, suck the gas of body and are fully contacted through gas sensor and with the probe of gas sensor, then from
Gas outlet is discharged, and when the electrokinetic cell in power battery box is leaked, the escaping gas in the electrolyte for leaking out is just
Can be detected by gas sensor, once detected electrolyte leak, the outfan of gas sensor export detection signal to
The input of signal processing unit, signal processing unit sends control end of the control signal to alarm unit through processing, and starts
Sound and light alarm, reminds driver or related personnel to make respective handling in time.And signal processing unit is let out according to having detected
The number of the apparatus for testing weeping of leakage, will leak out grade and is divided into rudimentary, intermediate and senior three ranks, and control alarm unit
The leakage class for making alarm unit correspondence different sends different alarm signals.When such as rudimentary, buzzer sends long, and luminous two
Pole pipe is lighted；When senior, buzzer sends rapid minor, and light emitting diode hurriedly flashes.Or when rudimentary, light emitting diode
Light, buzzer does not send chimes of doom；When intermediate, light emitting diode does not work, buzzer call；When senior, light emitting diode point
Bright, buzzer sends chimes of doom；Etc..To remind driver or related personnel, the degree of leakage is known, to make corresponding position
Reason.When it is senior that signal processing unit judges leakage class, signal processing unit sends control signal and starts the same of warning
When, ECU system 11 of the emergent control signal to electric automobile is exported, through processing, send signal makes electric automobile to ECU systems 11
Forced brake, such as cuts off the voltage output of electrokinetic cell, or makes engine stop work, etc., bigger to avoid leakage from causing
Accident, improve driving safety.
Claims (5)
1. a kind of power battery box of electric vehicle leakage detection system, it is characterised in that including being located in power battery box (1)
Several apparatus for testing weeping (4) and signal processing unit (2) and alarm unit (3), the outfan of apparatus for testing weeping (4) and
The input of signal processing unit (2) is connected, and the outfan of signal processing unit (2) is connected with the control end of alarm unit (3).
2. a kind of power battery box of electric vehicle leakage detection system according to claim 1, it is characterised in that described
Gas collecting pump (6) and gas sensor (7) of the apparatus for testing weeping (4) including body (5) and in body (5), body
(5) front end is provided with air inlet (8), and the rear end of body (5) is provided with gas outlet (9), and air inlet (8) is provided with drainage screen (10),
Described gas collecting pump (6) is located at the rear of described air inlet (8), and described gas sensor (7) is located at gas collecting
Between pump (6) and gas outlet (9), the input phase of the outfan of gas sensor (7) and described signal processing unit (2)
Even.
3. a kind of power battery box of electric vehicle leakage detection system according to claim 1, it is characterised in that described
Alarm unit (3) includes audion Q1, audion Q2, resistance R11～resistance R14 and light emitting diode D, buzzer LS, resistance
R11, equal output terminals A larm with described signal processing unit (2) in one end of resistance R13 are connected, the other end of resistance R11 and
The base stage of audion Q1 is connected, and the other end of resistance R13 is connected with the base stage of audion Q2, the grounded emitter of audion Q1,
The colelctor electrode of audion Q1 is connected with the negative pole of buzzer LS, and the positive pole Jing resistance R12 of buzzer LS connect voltage VCC, audion
The grounded emitter of Q2, the colelctor electrode of audion Q2 is connected with the negative pole of light emitting diode D, and the positive pole Jing of light emitting diode D is electric
Resistance R14 meets voltage VCC.
4. a kind of power battery box of electric vehicle leakage detection system according to claim 1, it is characterised in that described
Signal processing unit (2) is using STM32F107 microcontrollers.
5. a kind of power battery box of electric vehicle leakage detection system according to claim 1 or 2 or 3 or 4, its feature exists
There are 4～8 in described apparatus for testing weeping (4), multiple apparatus for testing weeping (4) are separately mounted to described power battery box
(1) on side wall, at least one apparatus for testing weeping (4) on each side wall of power battery box (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621106440.6U CN206134865U (en) | 2016-10-09 | 2016-10-09 | Electric automobile power battery box weeping detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621106440.6U CN206134865U (en) | 2016-10-09 | 2016-10-09 | Electric automobile power battery box weeping detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206134865U true CN206134865U (en) | 2017-04-26 |
Family
ID=58572170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621106440.6U Expired - Fee Related CN206134865U (en) | 2016-10-09 | 2016-10-09 | Electric automobile power battery box weeping detecting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206134865U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107959066A (en) * | 2017-11-20 | 2018-04-24 | 北京长城华冠汽车技术开发有限公司 | A kind of power battery box of electric vehicle leakage control system and control method |
| CN109342511A (en) * | 2018-11-20 | 2019-02-15 | 东莞锂威能源科技有限公司 | Battery electrolyte condition checkout gear and detection method |
| CN110957542A (en) * | 2019-04-30 | 2020-04-03 | 宁德时代新能源科技股份有限公司 | Battery thermal runaway detection method, device and system and battery management unit |
| CN116465572A (en) * | 2023-06-20 | 2023-07-21 | 宁德时代新能源科技股份有限公司 | Battery detection equipment and method and device for detecting battery |
-
2016
- 2016-10-09 CN CN201621106440.6U patent/CN206134865U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107959066A (en) * | 2017-11-20 | 2018-04-24 | 北京长城华冠汽车技术开发有限公司 | A kind of power battery box of electric vehicle leakage control system and control method |
| CN109342511A (en) * | 2018-11-20 | 2019-02-15 | 东莞锂威能源科技有限公司 | Battery electrolyte condition checkout gear and detection method |
| CN110957542A (en) * | 2019-04-30 | 2020-04-03 | 宁德时代新能源科技股份有限公司 | Battery thermal runaway detection method, device and system and battery management unit |
| CN116465572A (en) * | 2023-06-20 | 2023-07-21 | 宁德时代新能源科技股份有限公司 | Battery detection equipment and method and device for detecting battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190222 Address after: 313100 No. 358 Pheasant Island Avenue, Paixi Street, Changxing County, Huzhou City, Zhejiang Province Patentee after: Zhejiang Xinchuang Energy Co., Ltd. Address before: 313100 No. 12 Pheasant Island Avenue, Pheasant Town Xinxing Industrial Park, Changxing County, Huzhou City, Zhejiang Province Patentee before: Zhejiang Chaowei Chuangyuan Industrial Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170426 Termination date: 20191009 |