CN106898829A - Battery system unstability testing equipment and method - Google Patents
Battery system unstability testing equipment and method Download PDFInfo
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- CN106898829A CN106898829A CN201710120133.6A CN201710120133A CN106898829A CN 106898829 A CN106898829 A CN 106898829A CN 201710120133 A CN201710120133 A CN 201710120133A CN 106898829 A CN106898829 A CN 106898829A
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- 238000012360 testing method Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 29
- 238000012545 processing Methods 0.000 claims description 17
- 238000012546 transfer Methods 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 5
- 230000000052 comparative effect Effects 0.000 claims description 4
- 230000004913 activation Effects 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 7
- 230000015654 memory Effects 0.000 description 11
- 230000005611 electricity Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000003556 assay Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4285—Testing apparatus
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/445—Methods for charging or discharging in response to gas pressure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- 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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- Chemical & Material Sciences (AREA)
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Secondary Cells (AREA)
Abstract
The embodiment of the present invention provides a kind of battery system unstability testing equipment and method.The unstability testing equipment is applied to battery system, and battery system includes the first housing, battery unit and the second housing, and battery unit is arranged in the confined space that the first housing is formed with second shell body.The unstability testing equipment includes being in communication with each other the air pressure acquisition devices being separately positioned on inside and outside confined space and warning device of connection.Air pressure acquisition box of the air pressure acquisition devices including closed cavity structure, the two-way vent valve and first, second air pressure collecting equipment that are arranged on air pressure acquisition box body side.Air pressure acquisition devices gather the barometric information inside and outside air pressure acquisition box by first, second air pressure collecting equipment respectively, and barometric information is sent into warning device.Warning device receives barometric information, according to barometric information judge battery system whether unstability, and in unstability alarm, to carry out unstability detection in real time to battery system, it is to avoid cause heavy losses.
Description
Technical field
The present invention relates to battery system unstability detection technique field, in particular to a kind of detection of battery system unstability
Device and method.
Background technology
With the fast development of electronic technology, pure electronic and hybrid vehicle use is increasingly popularized, pure electronic
And requirement of the hybrid vehicle to high-performance, the battery system of high reliability is also constantly improved, the presence of battery system
As pure electronic and hybrid vehicle provides corresponding suitable and stable electric energy, makes pure electronic and hybrid vehicle
It is able to normally run, has given play to corresponding performance, and the security reliability of battery system and electric energy export stationarity also correspondingly
Determine pure electronic and hybrid vehicle running status.But for battery system, even there are many technologies and ask
Topic needs to solve, and wherein battery system and pure electronic and hybrid vehicle safety problem is that one of them is particularly important
Problem.
Battery system is an extremely complex electric power system, when battery core failure, the electricity piece in battery system (such as,
Relay) failure or during heat management device failure, all to may be such that and become unstable inside battery system, it is easily caused battery
Internal system is caught fire, and then diffuses to whole vehicle, causes heavy losses.
But for now, not finding to there are on the market can be monitored to the state of battery system, and in electricity
Occur in cell system under situation that is unstable or catching fire, remind user to take fire extinguishing safeguard procedures in time, it is to avoid to cause serious damage
The device or equipment of mistake.Therefore, a kind of simple structure, manufacture difficulty how to be provided low, reality can be carried out to the state of battery system
When the detection means that monitors, be the technical problem for being badly in need of solving to those skilled in the art.
The content of the invention
It is difficult it is an object of the invention to provide a kind of simple structure, manufacture in order to overcome above-mentioned deficiency of the prior art
Degree is low, and monitor in real time can be carried out to the state of battery system, and sends alarm when battery system is in instability status, keeps away
Exempt to cause the battery system unstability testing equipment and method of heavy losses.
For battery system unstability testing equipment, preferred embodiments of the present invention provide a kind of battery system unstability detection
Equipment.The battery system unstability testing equipment is applied to battery system, and the battery system includes the first housing, battery unit
And second housing, the battery unit is arranged in the confined space that first housing is formed with the second shell body.It is described
Unstability testing equipment includes the air pressure acquisition devices and the warning device that communicate to connect each other；
The air pressure acquisition devices are arranged in the confined space, the air pressure acquisition devices include air pressure acquisition box,
Two-way vent valve, the first air pressure collecting equipment and the second air pressure collecting equipment；
The air pressure acquisition box is closed cavity structure, and the two-way vent valve is arranged on of the air pressure acquisition box
On box body side, so that the air pressure acquisition box carries out gas exchanges by the two-way vent valve；
First air pressure collecting equipment is arranged in the air pressure acquisition box, and second air pressure collecting equipment is arranged at described
Air pressure acquisition box is outer and in the confined space, and first air pressure collecting equipment and second air pressure collecting equipment are adopted respectively
Collect the barometric information of the outer confined space of barometric information and the air pressure acquisition box in the air pressure acquisition box, and will collect
Barometric information is sent to the warning device；
The warning device is arranged on outside the confined space, and the warning device receives the barometric information, according to institute
State barometric information judge inside the battery system whether unstability, and alarmed when instability status are judged to, it is right to realize
The unstability detection of the battery system.
In preferred embodiments of the present invention, gas of the above-mentioned two-way vent valve when the battery system is in normal condition
Gas exchange rate of the body exchange rate with the two-way vent valve when the battery system is in instability status is equal.
In preferred embodiments of the present invention, above-mentioned first air pressure collecting equipment or the second air pressure collecting equipment are included for gathering
The baroceptor of barometric information and the data transfer unit for sending data, the data transfer unit and the air pressure transmission
Sensor is electrically connected with, and the barometric information that the baroceptor is collected is sent into the warning device.
In preferred embodiments of the present invention, above-mentioned warning device include for receiving by first air pressure collecting equipment and
The data receipt unit of the barometric information that the second air pressure collecting equipment sends, at the data that are processed the barometric information
Reason unit and the alarm unit for sending alarm；
The data processing unit is electrically connected with the data receipt unit, is received with to the data receipt unit
Barometric information processed, and judge whether the battery system is in instability status according to the result that obtains for the treatment of；
The alarm unit is electrically connected with the data processing unit, and the electricity is judged with the data processing unit
When cell system is in instability status, alarm is sent.
In preferred embodiments of the present invention, air pressure acquisition box described above is fixed on first inner walls or described
In second inner walls, so that the air pressure acquisition box is fixed in the confined space.
In preferred embodiments of the present invention, the sealing of the confined space that said first shell is formed with the second shell body
Grade is not less than IP67 grades.
For battery system unstability detection method, preferred embodiments of the present invention provide a kind of battery system unstability detection
Method.The battery system unstability detection method is applied to above-mentioned battery system unstability testing equipment.The unstability detection side
Method includes：
The barometric information and the air pressure acquisition box that the air pressure acquisition devices are gathered in the air pressure acquisition box are outer closed
The barometric information in space, and the barometric information that will be collected is sent to the warning device；
The warning device receives the barometric information sent via the air pressure acquisition devices, and the barometric information is carried out
Treatment, and judge the battery system whether in instability status according to the result that treatment is obtained；
When the warning device judges that the battery system is in instability status, the warning device produces alarm signal
Number, alarm is sent, to realize that the unstability to the battery system is detected.
It is above-mentioned that the barometric information is processed in preferred embodiments of the present invention, and the knot obtained according to treatment
The step of whether fruit judges the battery system in instability status includes：
The barometric information and the corresponding air pressure acquisition in the air pressure acquisition box that the warning device is received
The barometric information of the outer confined space of box is subtracted each other, and obtains the absolute value of corresponding air pressure difference；
Preset pressure value of the absolute value of the air pressure difference with storage in the warning device is compared, and root
Whether the battery system is judged in instability status according to comparative result, wherein, the preset pressure value is more than the battery system
The absolute value of air pressure difference maximum inside and outside corresponding air pressure acquisition box when system is in normal condition, less than the battery system
The absolute value of minimum air pressure difference inside and outside air pressure acquisition box corresponding during in instability status.
In preferred embodiments of the present invention, the above-mentioned absolute value by the air pressure difference is with storage in the warning device
Interior preset pressure value is compared, and judges that the step of whether battery system is in instability status is wrapped according to comparative result
Include：
When the absolute value of the air pressure difference is less than the preset pressure value, judge that the battery system is in normal shape
State；
When the absolute value of the air pressure difference is more than the preset pressure value, judge that the battery system is in unstability shape
State.
In preferred embodiments of the present invention, above-mentioned unstability detection method also includes：
Preset pressure value is set and preserved in the warning device.
In terms of existing technologies, preferred embodiments of the present invention are provided battery system unstability testing equipment and method
Have the advantages that：The battery system unstability assay device structures are simple, manufacture difficulty is low, can be filled by air pressure acquisition
Put the barometric information of the outer confined space of barometric information and air pressure collecting cassette in collection air pressure acquisition box, and the air pressure that will be collected
To warning device, the warning device receives the barometric information to data is activation, and battery system is judged according to the barometric information
It is internal whether unstability, and alarmed when instability status are judged to, so as to realize supervising the state of battery system in real time
Survey, send alarm during unstability inside battery system, it is to avoid cause heavy losses.
To enable the above objects, features and advantages of the present invention to become apparent, present pre-ferred embodiments cited below particularly,
And coordinate appended accompanying drawing, it is described in detail below.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be attached to what is used needed for embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, thus be not construed as it is right
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
A kind of structural representation of the battery system that Fig. 1 is provided for preferred embodiments of the present invention.
A kind of block diagram of the battery system unstability testing equipment that Fig. 2 is provided for preferred embodiments of the present invention.
The block diagram of the first air pressure collecting equipment that Fig. 3 is provided for preferred embodiments of the present invention.
Fig. 4 is a kind of block diagram of the warning device shown in Fig. 2.
A kind of schematic flow sheet of the battery system unstability detection method that Fig. 5 is provided for preferred embodiments of the present invention.
A kind of schematic flow sheet of the sub-step that Fig. 6 includes for step S320 in Fig. 5.
A kind of schematic flow sheet of the sub-step that Fig. 7 includes for sub-step S322 in Fig. 6.
Another schematic flow sheet of the battery system unstability detection method that Fig. 8 is provided for preferred embodiments of the present invention.
Icon：10- battery systems；The housings of 11- first；The housings of 12- second；13- battery units；100- battery system unstabilitys
Testing equipment；110- air pressure acquisition devices；120- warning devices；111- air pressure acquisition boxes；The two-way vent valves of 112-；113- first
Air pressure collecting equipment；The air pressure collecting equipments of 114- second；210- baroceptors；220- data transfer units；121- data receiver lists
Unit；122- data processing units；123- alarm units；124- memories.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Present invention implementation generally described and illustrated in accompanying drawing herein
The component of example can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiments of the invention below to providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model of present invention protection
Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it need not be further defined and explained in subsequent accompanying drawing.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, or should
Orientation or position relationship that invention product is usually put when using, are for only for ease of the description present invention and simplify description, without
Be indicate or imply meaning device or element must have specific orientation, with specific azimuth configuration and operation, therefore not
It is understood that to be limitation of the present invention.Additionally, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and can not manage
Solve to indicate or implying relative importance.
In the description of the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or one
The connection of body ground；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to indirect by intermediary
It is connected, can is two connections of element internal.For the ordinary skill in the art, can be with concrete condition understanding
State term concrete meaning in the present invention.
Below in conjunction with the accompanying drawings, some embodiments of the present invention are elaborated.It is following in the case where not conflicting
Feature in embodiment and embodiment can be mutually combined.
Fig. 1 is refer to, is a kind of structural representation of the battery system 10 that preferred embodiments of the present invention are provided.In this hair
In bright embodiment, the battery system 10 includes the first housing 11, the second housing 12 and battery unit 13.First housing 11
Second housing 12 is coordinated to form a confined space, the battery unit 13 is arranged in the confined space, to realize
State the function of supplying power of battery system 10.
In the present embodiment, first housing 11 coordinates the confined space that second housing 12 is formed mutual with the external world
Separate, the confined space does not carry out gas exchanges with the external world.Specifically, the sealing grade of the confined space can be IP67
Grade, or sealing grade than IP67 grade higher.Production cost and manufacturing process in view of battery system 10 is difficult
Degree, in this embodiment, it is preferred that formed using the first housing 11 and the second housing 12 that sealing grade meets IP67 grades
Confined space, to house the battery unit 13.
In the present embodiment, the battery unit 13 is the core component of the function of supplying power for realizing the battery system 10,
The battery unit 13 can include battery modules, for coordinate the battery modules to realize function of supplying power electricity piece (such as,
Relay) and for protecting the heat management device of the battery modules.The battery modules coordinate the electricity piece, the heat pipe
Reason device, realizes the function of supplying power of the battery system 10.
Of course, it should be understood that above-mentioned battery modules, electricity piece and heat management device are only the embodiment of the present invention carrying
A kind of implementation method of the battery unit 13 of confession, the present invention can also include the implementation method of more battery units 13.
Fig. 2 is refer to, is a kind of square frame of the battery system unstability testing equipment 100 that preferred embodiments of the present invention are provided
Schematic diagram.The battery system unstability testing equipment 100 is applied to the battery system 10, is carried out with to the battery system 10
Unstability detection in real time, and send alarm when the battery system 10 is in instability status, it is to avoid cause heavy losses.
In embodiments of the present invention, the battery system unstability testing equipment 100 includes the air pressure acquisition dress for gathering barometric information
Put 110 and for sending the warning device 120 of alarm.The air pressure acquisition devices 110 are mutual with the warning device 120
Between communicate to connect, to realize the transmission or interaction of data.In the present embodiment, the air pressure acquisition devices 110 and the report
Communication connection between alarm device 120 can be that the wire communication being attached by cable network is connected, or passed through
The wireless communication connection that wireless network is attached.
Specifically, referring once again to Fig. 1, in the present embodiment, the air pressure acquisition devices 110 are arranged on the battery system
In the confined space that the first housing 11 and the second housing 12 in system 10 are formed, the warning device 120 is arranged on described closed
Outside space, the air pressure acquisition devices 110 set up communication link with the warning device 120 by cable network or wireless network
Connect.
In embodiments of the present invention, the air pressure acquisition devices 110 include air pressure acquisition box 111, two-way vent valve 112,
First air pressure collecting equipment 113 and the second air pressure collecting equipment 114.The air pressure acquisition box 111 is arranged in the confined space, institute
State two-way vent valve 112 to be arranged on a box body side of the air pressure acquisition box 111, so that the air pressure acquisition box 111
Gas exchanges are carried out by the two-way vent valve 112.First air pressure collecting equipment 113 is arranged at the air pressure acquisition box
In 111, second air pressure collecting equipment 114 is arranged at outside the air pressure acquisition box 111 and in the confined space, described
First air pressure collecting equipment 113 gathers the barometric information in the air pressure acquisition box 111 with second air pressure collecting equipment 114 respectively
It is sent to the alarm and fills with the barometric information of the outer confined space of the air pressure acquisition box 111, and the barometric information that will be collected
Put 120.
In the present embodiment, the air pressure acquisition box 111 is closed cavity structure, and the air pressure acquisition box 111 only passes through
The two-way vent valve 112 carries out gas exchanges with the outer confined space of the air pressure acquisition box 111.Specifically, the air pressure is adopted
A closed cavity is provided with collection box 111, the closed cavity is spaced from each other with the external world, only by the two-way vent valve 112
Connected with the outer confined space of the air pressure acquisition box 111.
In the present embodiment, the air pressure acquisition box 111 can be by being fixed on the inwall of the first housing 11 or described
Mode on the inwall of two housing 12 is fixed in the confined space.Specifically, the air pressure acquisition box 111 can be with described first
Housing 11 or second housing 12 are integrally formed, so that the air pressure acquisition box 111 is fixed on the inwall of the first housing 11
Or on the inwall of the second housing 12；The air pressure acquisition box 111 is with first housing 11, second housing 12 mutually solely
Vertical, the air pressure acquisition box 111 can be fixed on the inwall of the first housing 11 or the second shell by modes such as buckle, adhesions
On the inwall of body 12.
In the present embodiment, the speed that the two-way vent valve 112 carries out gas exchanges is certain.Specifically, it is described two-way
Gas exchange rate of the vent valve 112 when the battery system 10 is in normal condition is with the two-way vent valve 112 in institute
Gas exchange rate when stating battery system 10 in instability status is equal, wherein, the normal condition refers to the battery system
State during 10 normal operation, the instability status refer to that the battery unit 13 in the battery system 10 occurs accident (such as, electricity
Battery modules in pool unit 13 are caught fire, electricity piece failure or heat management device are damaged), so as to cause battery system 10 to become not
Stabilization, the atmospheric pressure value in confined space is drastically raised, and easily triggers fire, causes the state of heavy losses.
In the present embodiment, first air pressure collecting equipment 113 is arranged on the closed cavity in the air pressure acquisition box 111
Interior, second air pressure collecting equipment 114 is arranged in the outer confined space of the air pressure acquisition box 111, so that first air pressure
Collector 113 gathers barometric information and the gas in the air pressure acquisition box 111 with second air pressure collecting equipment 114 respectively
Press the barometric information of the outer confined space of collecting cassette 111.
In the present embodiment, first air pressure collecting equipment 113 is small with the distance between second air pressure collecting equipment 114
In predeterminable range, wherein, the predeterminable range is the barometric information for collecting first air pressure collecting equipment 113 described in
The setting distance of the barometric information that the second air pressure collecting equipment 114 is collected.Specifically, when the battery system 10 is in normal shape
During state, the distance between first air pressure collecting equipment 113 and described second air pressure collecting equipment 114 can make institute less than predeterminable range
The barometric information that the barometric information that the first air pressure collecting equipment 113 collects collects with second air pressure collecting equipment 114 is stated to become
In consistent.When the battery system 10 is in instability status, because the two-way vent valve 112 carries out the speed of gas exchanges
Necessarily, it is impossible to which the air pressure inside and outside timely equilibrium air pressure collecting cassette 111, first air pressure collecting equipment 113 is in the battery system
10 are in the barometric information collected during instability status is in just with first air pressure collecting equipment 113 in the battery system 10
The barometric information collected during normal state is compared, and the barometric information rate of change in the air pressure acquisition box 111 is minimum but described
The barometric information that second air pressure collecting equipment 114 is collected but correspondingly drastically increases because of the interior drastically elevated temperature of confined space
Greatly, difference between the barometric information outside the barometric information and the air pressure acquisition box 111 in corresponding air pressure acquisition box 111
Absolute value also correspondingly rapidly rises, it will reach the standard that the warning device 120 is alarmed at faster speed, so that
Improving the battery system unstability testing equipment 100 carries out the sensitivity of unstability detection.
Fig. 3 is refer to, is the block diagram of the first air pressure collecting equipment 113 that preferred embodiments of the present invention are provided.
In the present embodiment, first air pressure collecting equipment 113 is included for gathering the baroceptor 210 of barometric information and for sending
The data transfer unit 220 of data.The data transfer unit 220 is electrically connected with the baroceptor 210, will be described
The barometric information that baroceptor 210 is collected is sent to the warning device 120.In the present embodiment, first air pressure
Collector 113 belongs to a kind of air pressure collecting equipment, second air pressure collecting equipment 114 with second air pressure collecting equipment 114
Including above-mentioned baroceptor 210 and data transfer unit 220.
In the present embodiment, the baroceptor 210 can be pressure sensor, and the data transfer unit 220 can
With including cable data transport module and wireless data transfer module.The data transfer unit 220 can by with the alarm
The barometric information that the wired data transfer module of the wire communication of device 120 connection collects the baroceptor 210 sends
To the warning device 120, the data transfer unit 220 also can by with the wireless communication connection of the warning device 120
The barometric information that the baroceptor 210 is collected is sent to the warning device 120 by wireless data transfer module, specifically
Data mode can according to demand carry out different settings.
In the present embodiment, the warning device 120 receives the gas collected by first air pressure collecting equipment 113
Barometric information in pressure collecting cassette 111 and the air pressure acquisition box 111 collected by second air pressure collecting equipment 114 are outer close
Close the barometric information in space, according to corresponding two groups of barometric informations judge inside the battery system 10 whether unstability, and sentencing
Alarmed when being set to instability status, to realize that the unstability to the battery system 10 is detected.
Specifically, Fig. 4 is refer to, is a kind of block diagram of the warning device 120 shown in Fig. 2.Of the invention real
Apply in example, the warning device 120 is included for receiving by first air pressure collecting equipment 113 and second air pressure collecting equipment
Data receipt unit 121, the data processing unit for being processed the barometric information of 114 barometric informations for sending
122 and for sending the alarm unit 123 of alarm.
In the present embodiment, the data processing unit 122 is electrically connected with the data receipt unit 121, with to institute
State the barometric information that data receipt unit 121 receives to be processed, and the battery system is judged according to the result that treatment is obtained
Whether system 10 is in instability status.
In the present embodiment, the alarm unit 123 is electrically connected with the data processing unit 122, with the number
When judging that the battery system 10 is in instability status according to processing unit 122, alarm is sent, wherein, the alarm unit
123 can include an alarm generator.
In the present embodiment, the warning device 120 can also include memory 124.The memory 124 can be stored
The barometric information that first air pressure collecting equipment 113 and second air pressure collecting equipment 114 send, can also store the data
Whether 122 pairs of barometric informations of processing unit are processed, and judge the battery system 10 according to the result that treatment is obtained
In software function module and computer program required for instability status etc..In the present embodiment, the memory 124 can be with
It is, but is not limited to, random access memory (Random Access Memory, RAM), read-only storage (Read Only
Memory, ROM), programmable read only memory (Programmable Read-Only Memory, PROM) is erasable read-only to deposit
Reservoir (Erasable Programmable Read-Only Memory, EPROM), electricallyerasable ROM (EEROM)
(Electric Erasable Programmable Read-Only Memory, EEPROM) etc..
Fig. 5 is refer to, is that a kind of flow of the battery system unstability detection method that preferred embodiments of the present invention are provided is shown
It is intended to.The battery system unstability detection method is applied to above-mentioned battery system unstability testing equipment 100, below to Fig. 5 institutes
The idiographic flow and step of the battery system unstability detection method shown are described in detail.
In embodiments of the present invention, the battery system unstability detection method may comprise steps of：
Step S310, barometric information and the air pressure acquisition box in the collection air pressure acquisition of air pressure acquisition devices 110 box 111
The barometric information of 111 outer confined spaces, and the barometric information that will be collected is sent to warning device 120.
In the present embodiment, the air pressure acquisition devices 110 are by the first gas for being arranged in the air pressure acquisition box 111
Pressure collector 113 and the second air pressure collecting equipment 114 set in the outer confined space of the air pressure acquisition box 111 gather described respectively
The barometric information of barometric information and the outer confined space of the air pressure acquisition box 111 in air pressure acquisition box 111, and by described
The data transfer unit 220 in data transfer unit 220 and second air pressure collecting equipment 114 in one air pressure collecting equipment 113
The barometric information of the barometric information in the air pressure acquisition box 111 and the outer confined space of the air pressure acquisition box 111 is sent out respectively
Give the warning device 120.
Step S320, the warning device 120 receives the barometric information sent via the air pressure acquisition devices 110, right
Whether the barometric information is processed, and judge battery system 10 in instability status according to the result that treatment is obtained.
In the present embodiment, the data receipt unit 121 in the warning device 120 respectively with first air pressure acquisition
The data transfer unit 220 in data transfer unit 220 and second air pressure collecting equipment 114 in device 113 is communicated to connect, with
Receive the barometric information and second air pressure in the air pressure acquisition box 111 that first air pressure collecting equipment 113 is collected
The barometric information of the outer confined space of the air pressure acquisition box 111 that collector 114 is collected.Number in the warning device 120
The two groups of barometric informations received according to 122 pairs of data receipt units 121 of processing unit are processed, and are obtained according to treatment
Result judge battery system 10 whether in instability status.
Specifically, Fig. 6 is refer to, is a kind of schematic flow sheet of the sub-step that step S320 includes in Fig. 5.In the present invention
In embodiment, the step S320 can include：
Sub-step S321, the barometric information in air pressure acquisition box 111 that warning device 120 is received is described with corresponding
The barometric information of the outer confined space of air pressure acquisition box 111 is subtracted each other, and obtains the absolute value of corresponding air pressure difference.
In the present embodiment, the air pressure acquisition that the data processing unit 122 receives the data receipt unit 121
Two groups of barometric informations of barometric information in box 111 and the barometric information of the outer confined space of the corresponding air pressure acquisition box 111
Carry out after additive operation obtains corresponding air pressure difference, signed magnitude arithmetic(al) being carried out to the air pressure difference, obtain corresponding air pressure
The absolute value of difference.
Sub-step S322, the preset pressure by the absolute value of the air pressure difference with storage in the warning device 120
Whether value is compared, and judge battery system 10 in instability status according to comparative result.
In the present embodiment, in the warning device 120 can also be stored for judging the battery in memory 124
Whether system 10 is in the preset pressure value of instability status.The preset pressure value is in normal shape more than the battery system 10
The absolute value of maximum air pressure difference inside and outside air pressure acquisition box 111 corresponding during state, is in less than the battery system 10 and loses
The absolute value of air pressure difference minimum inside and outside corresponding air pressure acquisition box 111 during steady state.
Specifically, Fig. 7 is refer to, is a kind of schematic flow sheet of the sub-step that sub-step S322 includes in Fig. 6.In this hair
In bright embodiment, the sub-step S322 can include：
Sub-step S3221, when the absolute value of air pressure difference is less than preset pressure value, judges that battery system 10 is in normal
State.
In the present embodiment, when the battery system 10 is in normal condition, the two-way vent valve 112 can make described
Air pressure acquisition box 111 carries out gas exchanges with the external seal space of the air pressure acquisition box 111, balances the air pressure acquisition box 111
Inside and outside air pressure, the air pressure number in barometric information in the air pressure acquisition box 111 and the external seal space of the air pressure acquisition box 111
According to that will reach unanimity, the absolute value of corresponding air pressure difference will be less than the preset pressure value.Therefore, when the air pressure acquisition is filled
When the absolute value for putting the air pressure difference corresponding to 110 barometric informations for collecting is less than the preset pressure value, it is possible to determine that institute
State battery system 10 and be in normal condition.
Sub-step S3222, when the absolute value of the air pressure difference is more than the preset pressure value, judges the battery system
System 10 is in instability status.
In the present embodiment, when the battery system 10 is in instability status, the temperature in the confined space is drastically
Raise, the barometric information of the outer confined space of the air pressure acquisition box 111 is correspondingly increased dramatically.Again because the two-way vent valve
112 gas exchange rate is certain, it is impossible to balance the air pressure inside and outside the air pressure acquisition box 111, the air pressure acquisition box in time
111 barometric information when the battery system 10 is in instability status is with the air pressure acquisition box 111 in the battery system
10 in normal condition when barometric information compare, the barometric information in the air pressure acquisition box 111 is changed very little, corresponding gas
The absolute value of pressure difference will be greater than the preset pressure value.Therefore, when the barometric information that the air pressure acquisition devices 110 are collected
When the absolute value of corresponding air pressure difference is more than the preset pressure value, it is possible to determine that the battery system 10 is in unstability shape
State.
Step S330, when the warning device 120 judges that the battery system 10 is in instability status, the alarm dress
120 generation alarm signals are put, alarm is sent, to realize that the unstability to the battery system 10 is detected.
In the present embodiment, when the data processing unit 122 in the warning device 120 is judged at the battery system 10
When unstability system, the data processing unit 122 produces alarm signal, and the alarm signal is sent into the alarm dress
Put the alarm unit 123 in 120.After the alarm unit 123 receives the alarm signal, alarm is accordingly sent, with
Realization carries out unstability detection in real time to the battery system 10, it is to avoid cause heavy losses.
Fig. 8 is refer to, is another flow of the battery system unstability detection method that preferred embodiments of the present invention are provided
Schematic diagram.In embodiments of the present invention, the battery system unstability detection method can also include：
Step S309, sets and preserves preset pressure value in the warning device 120.
In the present embodiment, the preset pressure value can be by the life of user or the battery system unstability testing equipment 100
Produce producer to be configured at the warning device 120, and the preset pressure value is stored in the memory 124.
In sum, it is described in the battery system unstability testing equipment and method that preferred embodiments of the present invention are provided
Battery system unstability assay device structures are simple, manufacture difficulty is low, can be gathered in air pressure acquisition box by air pressure acquisition devices
The barometric information of barometric information and the outer confined space of air pressure collecting cassette, and the barometric information that will be collected is sent to warning device,
The warning device receives the barometric information, according to the barometric information judge inside battery system whether unstability, and sentencing
Alarmed when being set to instability status, so as to realize carrying out real-time monitoring to the state of battery system, lost inside battery system
Alarm is sent when steady, it is to avoid cause heavy losses.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of battery system unstability testing equipment, is applied to battery system, and the battery system includes the first housing, battery list
Unit and the second housing, the battery unit are arranged in the confined space that first housing is formed with the second shell body, its
It is characterised by, the unstability testing equipment includes the air pressure acquisition devices and the warning device that communicate to connect each other；
The air pressure acquisition devices are arranged in the confined space, and the air pressure acquisition devices include air pressure acquisition box, two-way
Vent valve, the first air pressure collecting equipment and the second air pressure collecting equipment；
The air pressure acquisition box is closed cavity structure, and the two-way vent valve is arranged on a box body of the air pressure acquisition box
On side, so that the air pressure acquisition box carries out gas exchanges by the two-way vent valve；
First air pressure collecting equipment is arranged in the air pressure acquisition box, and second air pressure collecting equipment is arranged at the air pressure
Collecting cassette is outer and in the confined space, and first air pressure collecting equipment and second air pressure collecting equipment gather institute respectively
State the barometric information of the outer confined space of barometric information and the air pressure acquisition box in air pressure acquisition box, and the air pressure that will be collected
Data is activation gives the warning device；
The warning device is arranged on outside the confined space, and the warning device receives the barometric information, according to the gas
Pressure data judge inside the battery system whether unstability, and alarmed when instability status are judged to, to realize to described
The unstability detection of battery system.
2. unstability testing equipment according to claim 1, it is characterised in that the two-way vent valve is in the battery system
The gas of gas exchange rate during in normal condition with the two-way vent valve when the battery system is in instability status
Body exchange rate is equal.
3. unstability testing equipment according to claim 1, it is characterised in that first air pressure collecting equipment or the second air pressure
Collector includes the baroceptor and the data transfer unit for sending data for gathering barometric information, and the data are passed
Send unit to be electrically connected with the baroceptor, the barometric information that the baroceptor is collected is sent to the report
Alarm device.
4. unstability testing equipment according to claim 1, it is characterised in that the warning device is included for receiving by institute
State the data receipt unit of the barometric information that the first air pressure collecting equipment and second air pressure collecting equipment send, for the gas
Data processing unit and the alarm unit for sending alarm that pressure data are processed；
The data processing unit is electrically connected with the data receipt unit, with the gas received to the data receipt unit
Whether pressure data are processed, and judge the battery system in instability status according to the result that treatment is obtained；
The alarm unit is electrically connected with the data processing unit, and the battery system is judged with the data processing unit
When system is in instability status, alarm is sent.
5. unstability testing equipment according to claim 1, it is characterised in that the air pressure acquisition box is fixed on described first
In inner walls or second inner walls, so that the air pressure acquisition box is fixed in the confined space.
6. unstability testing equipment according to claim 1, it is characterised in that first housing and the second shell bodily form
Into the sealing grade of confined space be not less than IP67 grades.
7. a kind of battery system unstability detection method, is applied to the battery system unstability described in any one in claim 1-6
Testing equipment, it is characterised in that the unstability detection method includes：
The air pressure acquisition devices gather the outer confined space of barometric information and the air pressure acquisition box in the air pressure acquisition box
Barometric information, and the barometric information that will be collected is sent to the warning device；
The warning device receives the barometric information sent via the air pressure acquisition devices, at the barometric information
Reason, and judge the battery system whether in instability status according to the result that treatment is obtained；
When the warning device judges that the battery system is in instability status, the warning device produces alarm signal, hair
Go out alarm, to realize that the unstability to the battery system is detected.
8. unstability detection method according to claim 7, it is characterised in that described to process the barometric information,
And judge that the step of whether battery system is in instability status includes according to the result that treatment is obtained：
The barometric information in the air pressure acquisition box that the warning device is received with outside the corresponding air pressure acquisition box
The barometric information of confined space is subtracted each other, and obtains the absolute value of corresponding air pressure difference；
The absolute value of the air pressure difference is compared with preset pressure value of the storage in the warning device, and according to than
Whether relatively result judges the battery system in instability status, wherein, the preset pressure value is more than at the battery system
The absolute value of maximum air pressure difference, is in less than the battery system inside and outside corresponding air pressure acquisition box when normal condition
The absolute value of minimum air pressure difference inside and outside air pressure acquisition box corresponding during instability status.
9. unstability detection method according to claim 8, it is characterised in that the absolute value by the air pressure difference with
The preset pressure value stored in the warning device is compared, and judges whether the battery system is located according to comparative result
Include the step of instability status：
When the absolute value of the air pressure difference is less than the preset pressure value, judge that the battery system is in normal condition；
When the absolute value of the air pressure difference is more than the preset pressure value, judge that the battery system is in instability status.
10. unstability detection method according to claim 7, it is characterised in that the unstability detection method also includes：
Preset pressure value is set and preserved in the warning device.
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| CN201710120133.6A CN106898829B (en) | 2017-03-02 | 2017-03-02 | Battery system instability detection equipment and method |
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| CN201710120133.6A CN106898829B (en) | 2017-03-02 | 2017-03-02 | Battery system instability detection equipment and method |
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