CN206435494U - A kind of soft bag lithium ionic cell device for detecting sealability based on ultrasonic technique - Google Patents
A kind of soft bag lithium ionic cell device for detecting sealability based on ultrasonic technique Download PDFInfo
- Publication number
- CN206435494U CN206435494U CN201621364157.3U CN201621364157U CN206435494U CN 206435494 U CN206435494 U CN 206435494U CN 201621364157 U CN201621364157 U CN 201621364157U CN 206435494 U CN206435494 U CN 206435494U
- Authority
- CN
- China
- Prior art keywords
- ultrasonic
- air coupling
- soft bag
- probe
- ionic cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model discloses a kind of soft bag lithium ionic cell device for detecting sealability based on ultrasonic technique, including kinetic control system, bad part eject unit, ultrasonic testing system, data acquisition module, WeChat ID amplification module and computer；The kinetic control system includes the conveyer belt for transmitting soft bag lithium ionic cell and the motor for driving conveyer belt to move, and the motor is connected with computer；The ultrasonic testing system includes ultrasonic action module and at least one set of Air Coupling ultrasonic probe group；The bad part eject unit is connected with computer.The utility model provides high speed, lossless, can be online lithium ion soft-package battery and seals sealing leak detection means, method is inspected by random samples relative to traditional damage type, with noncontact, it is pollution-free without destruction the characteristics of, be remarkably improved detection efficiency, be with a wide range of applications.
Description
Technical field
The utility model is related to soft bag lithium ionic cell sealing propertytest field, more particularly to a kind of based on ultrasonic technique
Soft bag lithium ionic cell device for detecting sealability.
Background technology
Lithium ion battery is as a kind of new electrochmical power source, with operating voltage is high, specific energy is big, discharge potential curve
Steadily, self discharge is small, have extended cycle life, low temperature performance well, the prominent advantage such as memoryless, pollution-free, disclosure satisfy that people couple
Battery smart lightweight and environmentally friendly double requirements required for portable electronics, are widely used in mobile communication, notes
This computer, take the photograph and put the compact electronic devices such as all-in-one, be also the ideal source that following electric vehicle is used.
Soft bag lithium ionic cell as lithium ion battery a kind of new packing forms, with light weight, appearance and size spirit
It is living, the advantages such as the requirement of integrated design can be better met.For example, the mass energy density of soft bag lithium ionic cell is higher than
Aluminum-shell battery, the battery (2Ah~5Ah) of same volume, soft bag lithium ionic cell 10%-20% lighter than aluminum-shell battery or so.
In product applications, medium-to-high grade electric consumers are increasingly frivolous, integral type, portability, and in new energy power vehicle
Field of batteries, the energy density requirement for lithium ion battery is more improved, and therefore, the advantage of soft bag lithium ionic cell will enter one
Step is highlighted.
But, due to soft bag lithium ionic cell using heat-sealing form encapsulate, its sealing part exist occur bubble, be mingled with,
The risk of the seal defects such as leakage channel, electrolyte leakage, lithium-ion electric will be occurred by encapsulating bad soft bag lithium ionic cell
The hidden danger such as pond internal moisture is exceeded, quality to lithium ion battery and has serious influence using safety.Soft Roll lithium-ion electric
Pond sealing problem is to limit its wide variety of importance.Therefore, soft bag lithium ionic cell sealing online test method
With device demand it is quite varied with it is urgent.
At present, the detection means for soft bag lithium ionic cell sealing mainly has：It is helium mass spectroscopic assays, water inspection method, straight
Pressure type detection method, differential pressure type detection method etc..Wherein helium mass spectroscopic assays belong to examining leakage, its maximum can the rate of hunting leak have the upper limit, about
For 1 × 10-4Pam3/s, larger error can be produced by carrying out detection using helium mass spectroscopic assays for the leakage more than this leak rate.
Its excess-three kind method belongs to Rough Inspection leakage, and water examines method due to being influenceed greatly by reviewer's subjective factor, and inefficiency.Direct press type
The resolution ratio that leak detecting is limited to vertical compression sensor is relatively low, causes precision low, while easily being caused detected value can by environmental disturbances
Reliability is low.Differential pressure type detection method is limited because of its principle, it is impossible to accomplish 100% on-line checking.
Supersonic testing method is one of package encapsulation lossless detection method developed in recent years.At present, ultrasound detection
Method has been applied in terms of food, medicine, the sealing performance of soft packing bag test of daily chemical products.But apply main using water logging spy
Head is detected by couplant of water, still can not realize lossless, on-line checking, it is necessary to sample is immersed in the water.
Utility model content
In order to overcome the disadvantages mentioned above and deficiency of prior art, the purpose of this utility model is to provide a kind of based on ultrasound
The soft bag lithium ionic cell device for detecting sealability of technology, can realize that the high-speed lossless of flexible packing lithium ion battery sealing exists
Line detects that detection speed is fast, efficiency high.
The purpose of this utility model is achieved through the following technical solutions：
A kind of soft bag lithium ionic cell device for detecting sealability based on ultrasonic technique, including kinetic control system, substandard products
Culling unit, ultrasonic testing system, data acquisition module, WeChat ID amplification module and computer；
The kinetic control system includes being used to transmit the conveyer belt of soft bag lithium ionic cell and for driving conveyer belt to transport
Dynamic motor, the motor is connected with computer；
The ultrasonic testing system includes ultrasonic action module and at least one set of Air Coupling ultrasonic probe group；The air
Coupling ultrasonic probe group is made up of an Air Coupling ultrasound emission probe and an Air Coupling ultrasonic reception probe, the sky
The both sides that gas coupling ultrasonic transmitting probe and Air Coupling ultrasonic reception are popped one's head in just to being arranged at conveyer belt；The Air Coupling surpasses
Acoustic emission probe is connected by the way that module is motivated by ultrasound with computer, and the Air Coupling ultrasonic reception probe passes sequentially through signal and put
Big module, data acquisition module and computer are connected；
The bad part eject unit is connected with computer, is arranged at the side of conveyer belt, for ultrasonic amplitude to be less than into width
The soft bag lithium ionic cell of value threshold value is rejected from conveyer belt.
As preferred, the kinetic control system also include one be used to detecting soft bag lithium ionic cell whether be located at it is super
Position detection sensor in the range of sound detection；The position detection sensor is connected with computer, is arranged at the one of conveyer belt
Side.
As preferred, the position detection sensor is infrared sensor.
It is described that signal generating unit, power amplification unit that module includes being sequentially connected, institute is motivated by ultrasound as preferred
Signal generating unit is stated to be connected with computer；The power amplification unit is connected with Air Coupling ultrasound emission probe.
Described that module is motivated by ultrasound also including impedance matching unit as preferred, the power amplification unit, which passes through, to be hindered
Anti- matching unit is connected with Air Coupling ultrasound emission probe.
As preferred, the data acquisition module includes AD conversion unit and data collecting card, the AD converting units
It is connected successively with WeChat ID amplification module, Air Coupling ultrasonic reception probe, data collecting card is connected with computer.
As preferred, the WeChat ID amplification module includes head preamplifier circuit, the superheterodyne reception line being sequentially connected
Road and phase sensitive detection circuit, wherein head preamplifier circuit are connected with Air Coupling ultrasonic reception probe, phase-sensitive detection circuit and number
Connected according to acquisition module.
As preferred, the bad part eject unit is made up of photoelectric sensor and pneumatic machinery mechanism, the photoelectric transfer
Sensor and pneumatic machinery mechanism are connected with computer respectively.
As preferred, the Air Coupling ultrasound emission probe and Air Coupling ultrasonic reception probe use point focusing
Formula Air Coupling ultrasonic probe, focus diameter is 0.2mm~1.5mm.
As preferred, the Air Coupling ultrasound emission probe and Air Coupling ultrasonic reception probe use line focus
Formula Air Coupling ultrasonic probe, focal width is 0.2mm~1.5mm.
Compared with prior art, the utility model has advantages below and beneficial effect：
1st, the utility model realizes online non-destructive testing；Flexible-packed battery heat-sealing is carried out using Air Coupling ultrasonic technique
Sealing leak is detected, is popped one's head in without couplant, is not contacted sample, therefore realizes Non-Destructive Testing, solves conventional water inspection method, difference
The problem of destruction is with pollution is likely to result in pressure type detection method to battery product.Motion control mould is used as using line conveyor
Block, can be achieved real 100% on-line checking.
2nd, the utility model detection speed is fast, efficiency high；Ultrasonic action pulse signal is a few to tens of microseconds, is coordinated at a high speed
Transmission belt and suitable battery edge sealing guide rail or fixture, can make the testing time of each battery sealing-performance within 3 seconds, in inspection
More traditional sampling observation method in efficiency is surveyed to have a distinct increment.
Brief description of the drawings
Fig. 1 is a kind of signal of the soft bag lithium ionic cell device for detecting sealability based on ultrasonic technique of the present utility model
Figure.
Embodiment
With reference to embodiment and accompanying drawing, the utility model is described in further detail, but reality of the present utility model
Apply mode not limited to this.
Embodiment
As shown in figure 1, the soft bag lithium ionic cell device for detecting sealability based on ultrasonic technique of the present embodiment, including fortune
Autocontrol system, bad part eject unit, ultrasonic testing system, data acquisition module, WeChat ID amplification module and computer.It is described
Kinetic control system includes the conveyer belt 1 for transmitting soft bag lithium ionic cell 4 and the motor for driving conveyer belt to move,
The motor is connected with computer.
The kinetic control system, which also includes one, to be used to detect whether soft bag lithium ionic cell is located at ultrasound detection scope
Interior position detection sensor；The position detection sensor is connected with computer, can be by way of wirelessly or non-wirelessly and meter
Calculation machine communicates, and is arranged at the side of conveyer belt；The kinetic control system, which also includes one, to be used to detect soft bag lithium ionic cell
Whether position detection sensor ultrasound detection in the range of is located at；The position detection sensor is connected with computer.This implementation
The position detection sensor of example uses infrared sensor.
The ultrasonic testing system of the present embodiment includes ultrasonic action module and at least one set of Air Coupling ultrasonic probe group；Institute
Air Coupling ultrasonic probe group is stated to be popped one's head in 3 groups by an Air Coupling ultrasound emission probe 2 and an Air Coupling ultrasonic reception
Into 3 both sides just to being arranged at conveyer belt 1 of Air Coupling ultrasound emission probe 2 and Air Coupling ultrasonic reception probe；
The Air Coupling ultrasound emission probe is connected by the way that module is motivated by ultrasound with computer, the Air Coupling ultrasonic reception probe
Signal amplification module, data acquisition module and computer is passed sequentially through to connect；The bad part eject unit is connected with computer, secondary
Product culling unit can communicate with computer by way of wirelessly or non-wirelessly.
The ultrasonic action module of the present embodiment includes signal generating unit, power amplification unit and the impedance being sequentially connected
With unit, the signal generating unit is connected with computer；The impedance matching unit is popped one's head in Air Coupling ultrasound emission to be connected
Connect.Signal generating unit is used for the generation of excitation pulse signal, and power amplification unit is used for the electricity for providing the excitation pulse signal
Press gain and power gain, the impedance that impedance matching unit is used between power amplification unit and Air Coupling ultrasound emission probe
Matching, improves the efficiency of signal excitation.In the present embodiment, pumping signal uses sine pulse, and power amplification to peak-to-peak value is
200V, periodicity is 6, and driving frequency is 1ms/ times.
The data acquisition module of the present embodiment include AD conversion unit and data collecting card, the AD conversion unit successively with
WeChat ID amplification module, the probe connection of Air Coupling ultrasonic reception, data collecting card are connected with computer.Data collecting card model
For Spectrum m4i-4410, it is connected by pci interface with computer communication, data sampling rate is 100MHz.
The WeChat ID amplification module of the present embodiment includes head preamplifier circuit, superheterodyne reception circuit and phase sensitive detection line
Road, wherein head preamplifier circuit are connected with Air Coupling ultrasonic reception probe, and phase-sensitive detection circuit is connected with data acquisition module.
Ultrasonic signal is amplified in the collectable scope of data acquisition module by WeChat ID amplification module, and data acquisition unit believes ultrasound
Number it is sent to computer in real time.
The bad part eject unit of the present embodiment is made up of photoelectric sensor and pneumatic machinery mechanism, the photoelectric sensor and
Pneumatic machinery mechanism is connected with computer respectively；When photoelectric sensor detects the arrival of substandard products, computer drives pneumatic motor
Substandard products are released production line by tool mechanism.
The Air Coupling ultrasound emission probe and Air Coupling ultrasonic reception probe of the present embodiment can use point focusing formula
Air Coupling ultrasonic probe, focus diameter is 0.2mm~1.5mm；Air Coupling ultrasound emission is popped one's head in and Air Coupling ultrasound connects
Line focus type Air Coupling ultrasonic probe can also be used by receiving probe, and focal width is 0.2mm~1.5mm.
The course of work of the soft bag lithium ionic cell device for detecting sealability based on ultrasonic technique of the present embodiment is as follows：
S1, conveyer belt drive soft bag lithium ionic cell movement to be measured, and position detection sensor is once treated every 10ms detections
Soft bag lithium ionic cell is surveyed whether in ultrasonic probe detection range, and sends the signal to computer, if Soft Roll lithium to be measured from
Sub- battery is in ultrasound detection scope, then into step S2；
S2, signal transmitting；Computer control signal generating unit generates in ultrasonic signal, the present embodiment and uses sine
Signal；Signal obtains voltage and power gain by power amplification unit, and the excitation of ultrasonic signal is improved through impedance matching unit
Efficiency, then pass through Air Coupling ultrasound emission probe transmitting ultrasonic signal；
S3, signal are received and processing；Air Coupling ultrasonic reception probe is received through soft bag lithium ionic cell to be measured sealing
Ultrasonic signal, and more than 50mV is amplified to by WeChat ID amplification module, then by data collecting module collected and transmit to meter
Calculation machine；
S4, scanning are completed；When position detection sensor detects sample and leaves supersonic sounding scope, sample is completed
Scanning；
S5, rejecting substandard products；Computer is handled the ultrasonic signal received, obtains ultrasonic signal amplitude set
{ Ai }, and amplitude Ai and the amplitude thresholds δ of setting are compared, computer control bad part eject unit will gather presence in { Ai }
The soft bag lithium ionic cell that amplitude Ai is less than amplitude thresholds δ point is rejected from conveyer belt.
Above-described embodiment is the utility model preferably embodiment, but embodiment of the present utility model is not by described
The limitation of embodiment, it is other it is any without departing from Spirit Essence of the present utility model with made under principle change, modify, replace
Generation, combination, simplification, should be equivalent substitute mode, are included within protection domain of the present utility model.
Claims (10)
1. a kind of soft bag lithium ionic cell device for detecting sealability based on ultrasonic technique, it is characterised in that including motion control
System, bad part eject unit, ultrasonic testing system, data acquisition module, WeChat ID amplification module and computer；
The kinetic control system includes what is be used for the conveyer belt for transmitting soft bag lithium ionic cell and moved for driving conveyer belt
Motor, the motor is connected with computer；
The ultrasonic testing system includes ultrasonic action module and at least one set of Air Coupling ultrasonic probe group；The Air Coupling
Ultrasonic probe group is made up of an Air Coupling ultrasound emission probe and an Air Coupling ultrasonic reception probe, the air coupling
Close the both sides that ultrasound emission probe and Air Coupling ultrasonic reception are popped one's head in just to being arranged at conveyer belt；The Air Coupling ultrasound hair
Penetrate probe to be connected with computer by the way that module is motivated by ultrasound, the Air Coupling ultrasonic reception probe passes sequentially through signal amplification mould
Block, data acquisition module and computer are connected；
The bad part eject unit is connected with computer, is arranged at the side of conveyer belt.
2. the soft bag lithium ionic cell device for detecting sealability according to claim 1 based on ultrasonic technique, its feature exists
In the kinetic control system, which also includes one, to be used to detect the position whether soft bag lithium ionic cell is located in the range of ultrasound detection
Put detection sensor；The position detection sensor is connected with computer, is arranged at the side of conveyer belt.
3. the soft bag lithium ionic cell device for detecting sealability according to claim 2 based on ultrasonic technique, its feature exists
In the position detection sensor is infrared sensor.
4. the soft bag lithium ionic cell device for detecting sealability based on ultrasonic technique according to claim wants 1, its feature
It is, the ultrasonic action module includes signal generating unit, the power amplification unit being sequentially connected, the signal generating unit
It is connected with computer；The power amplification unit is connected with Air Coupling ultrasound emission probe.
5. the soft bag lithium ionic cell device for detecting sealability based on ultrasonic technique according to claim wants 4, its feature
It is, the ultrasonic action module also includes impedance matching unit, and the power amplification unit passes through impedance matching unit and sky
Gas coupling ultrasonic transmitting probe is connected.
6. the soft bag lithium ionic cell device for detecting sealability based on ultrasonic technique according to claim wants 1, its feature
It is, the data acquisition module includes AD conversion unit and data collecting card, the AD conversion unit is put with WeChat ID successively
Big module, the probe connection of Air Coupling ultrasonic reception, data collecting card are connected with computer.
7. the soft bag lithium ionic cell device for detecting sealability based on ultrasonic technique according to claim wants 1, its feature
It is, the WeChat ID amplification module includes head preamplifier circuit, superheterodyne reception circuit and phase sensitive detection circuit, wherein preposition
Amplifying circuit is connected with Air Coupling ultrasonic reception probe, and phase-sensitive detection circuit is connected with data acquisition module.
8. the soft bag lithium ionic cell device for detecting sealability based on ultrasonic technique according to claim wants 1, its feature
It is, the bad part eject unit is made up of photoelectric sensor and pneumatic machinery mechanism, the photoelectric sensor and pneumatic machinery
Mechanism is connected with computer respectively.
9. the soft bag lithium ionic cell device for detecting sealability based on ultrasonic technique according to claim wants 1, its feature
It is, the Air Coupling ultrasound emission probe and Air Coupling ultrasonic reception probe are using point focusing formula Air Coupling ultrasound
Probe, focus diameter is 0.2mm~1.5mm.
10. the soft bag lithium ionic cell device for detecting sealability based on ultrasonic technique according to claim wants 1, its feature
It is, the Air Coupling ultrasound emission probe and Air Coupling ultrasonic reception probe are using line focus type Air Coupling ultrasound
Probe, focal width is 0.2mm~1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621364157.3U CN206435494U (en) | 2016-12-13 | 2016-12-13 | A kind of soft bag lithium ionic cell device for detecting sealability based on ultrasonic technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621364157.3U CN206435494U (en) | 2016-12-13 | 2016-12-13 | A kind of soft bag lithium ionic cell device for detecting sealability based on ultrasonic technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206435494U true CN206435494U (en) | 2017-08-25 |
Family
ID=59646659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621364157.3U Active CN206435494U (en) | 2016-12-13 | 2016-12-13 | A kind of soft bag lithium ionic cell device for detecting sealability based on ultrasonic technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206435494U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975430A (en) * | 2019-03-19 | 2019-07-05 | 航天材料及工艺研究所 | A kind of automatic detection defective locations caliberating device of Air Coupling ultrasound |
| CN110053312A (en) * | 2019-03-19 | 2019-07-26 | 瑞弘精密工业股份有限公司 | The sealing detection device of packaging bag |
| US10921294B2 (en) | 2017-02-09 | 2021-02-16 | Lg Chem, Ltd. | System for non-destructively inspecting and determining sealing of aluminum pouch by using ultrasonic waves |
| CN112881915A (en) * | 2021-01-18 | 2021-06-01 | 恒大新能源汽车投资控股集团有限公司 | Fault identification method and device for lithium battery and computer readable storage medium |
-
2016
- 2016-12-13 CN CN201621364157.3U patent/CN206435494U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10921294B2 (en) | 2017-02-09 | 2021-02-16 | Lg Chem, Ltd. | System for non-destructively inspecting and determining sealing of aluminum pouch by using ultrasonic waves |
| CN109975430A (en) * | 2019-03-19 | 2019-07-05 | 航天材料及工艺研究所 | A kind of automatic detection defective locations caliberating device of Air Coupling ultrasound |
| CN110053312A (en) * | 2019-03-19 | 2019-07-26 | 瑞弘精密工业股份有限公司 | The sealing detection device of packaging bag |
| CN109975430B (en) * | 2019-03-19 | 2021-09-07 | 航天材料及工艺研究所 | Air coupling supersound automated inspection defect position calibration device |
| CN112881915A (en) * | 2021-01-18 | 2021-06-01 | 恒大新能源汽车投资控股集团有限公司 | Fault identification method and device for lithium battery and computer readable storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206435494U (en) | A kind of soft bag lithium ionic cell device for detecting sealability based on ultrasonic technique | |
| CN105067706B (en) | Heat-sealing flexible package method for conducting leak test and system based on Air Coupling ultrasound | |
| CN101788280B (en) | Device for identifying banknote thickness abnormity through ultrasonic wave and method thereof | |
| CN106287240B (en) | A kind of pipeline leakage testing device and single-sensor localization method based on sound emission | |
| CN206618725U (en) | A kind of dam the cannot-harm-detection device | |
| CN205679364U (en) | Lithium battery automatic barcode scanning leak test plant | |
| CN201021922Y (en) | A no damage device for detecting fruit quality | |
| CN203267870U (en) | Anti-interference vehicle and mobile environment monitoring system | |
| CN104597124A (en) | Metal canned product quality on-line detection method based on sound frequency-spectrum fitting | |
| CN1743839A (en) | Structure defect ultrasonic on-line intelligent identifying system and identifying method | |
| CN106645418A (en) | Tracked magnetic-acoustic hybrid detection robot, detection method and device | |
| CN103185554A (en) | Device for detecting thickness of board | |
| CN106557637B (en) | Safety performance evaluation method of energy storage product | |
| CN114152676A (en) | Method for realizing automatic detection of wind power blade defects based on ultrasonic waves | |
| CN206848211U (en) | A kind of ultrasonic testing system | |
| CN2809640Y (en) | Ultrasonic online intelligent recognition system for structural defect | |
| CN103954691A (en) | Nondestructive testing method for material component fraction | |
| CN202734772U (en) | Device for detecting the thickness of plates | |
| CN104121981A (en) | Remote wireless vibration monitoring device applied to offshore jacket ocean platform | |
| CN103389270A (en) | Apparatus for measuring concentration of trace gas, and method thereof | |
| CN203275036U (en) | Handheld gas leakage detector | |
| CN205426736U (en) | Aerosol concentration by mass optical detection device | |
| CN205537494U (en) | A transparent film sensor for structural health monitoring | |
| CN205193024U (en) | Heat -seal soft -packing leakproofness detecting system based on air coupling supersound | |
| CN202974234U (en) | Length detection apparatus for sheet material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |