CN105953985A - Lithium battery electrode cover plate helium mass spectrum leak detection method - Google Patents
Lithium battery electrode cover plate helium mass spectrum leak detection method Download PDFInfo
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- CN105953985A CN105953985A CN201610435899.9A CN201610435899A CN105953985A CN 105953985 A CN105953985 A CN 105953985A CN 201610435899 A CN201610435899 A CN 201610435899A CN 105953985 A CN105953985 A CN 105953985A
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- helium
- cover plate
- detection
- helium mass
- battery cover
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/202—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material using mass spectrometer detection systems
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a lithium battery electrode cover plate helium mass spectrum leak detection method. The method comprises a helium mass spectrum leak detector, an electrical control portion and a detection mechanism, wherein the detection mechanism is installed at a leak detection port of the helium mass spectrum leak detector, the electrical control portion controls a helium spray amount of the detection mechanism, a lithium battery cover plate is placed on the detection mechanism, the outer side of the lithium battery cover plate is vacuumed, automatic helium spraying is carried out on a battery cover plate point needing detection, change of a leak rate is displayed through the helium mass spectrum leak detector, the sealing condition of a detection point of the battery cover plate is determined, and accordingly, whether sealing of the detected battery cover plate is qualified is determined. According to the helium mass spectrum leak detection method provided by the invention, adjustment is performed through a time relay of the electrical control portion, the sealing performance of the lithium battery cover plate can be rapidly, accurately and conveniently detected, and high-precision streamline type full detection of the sealing performance of the battery cover plate is realized.
Description
Technical field
The present invention relates to technical field, a kind of method particularly relating to electrode of lithium cell cover plate helium mass spectrum leak detection.
Background technology
The electrolyte that battery uses is highly basic, has the highest corrosivity, so battery needs during using to seal, i.e. electrolyte can not leak outside.
In modern batteries electric lids production process, cover plate is provided with rupture pressure disc at explosionproof hole, to prevent from using or misoperation, causes inner pressure of battery to raise, causes battery to burst.On cover plate fluted, have cover plate to weld cored solder with rupture pressure disc in groove, cover plate and rupture pressure disc are that brazing mode links together.After cover plate and rupture pressure disc are fixed together, the sealing needed during using due to battery, need the welding of rupture pressure disc at explosionproof hole is carried out sealing propertytest, existing frequently-used detection method is, suppresses and is placed in water detection, during this method check fee, arduously, and accuracy of detection is the highest, in battery cover board production process, the sampling Detection of the low precision of battery cover board can only be realized, be not suitable for battery cover board sealing high accuracy, pipeline system detects entirely.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of method of electrode of lithium cell cover plate helium mass spectrum leak detection.
The present invention is achieved by the following technical solutions:
A kind of method of electrode of lithium cell cover plate helium mass spectrum leak detection, include helium mass spectrometer leak detector, electric control system and testing agency, described testing agency is arranged on the leak detection mouth of helium mass spectrometer leak detector, electric control system controls the spray helium amount of testing agency, lithium battery cover plate is placed in testing agency, evacuate outside lithium battery cover plate, the battery cover board point needing detection is sprayed helium automatically, changed by helium mass spectrometer leak detector display leak rate, judge that battery cover board test point seals situation, thus it is the most qualified to judge that detected battery cover board seals.
Described electric control system includes the time relay, auxiliary reclay and the electromagnetic valve of control cylinder action.
nullDescribed testing agency includes twin shaft cylinder、Spray helium electromagnetic valve and detection seat，Twin shaft cylinder is arranged on cylinder fix on seat，It is fixed with inflation briquetting in the lower end of the cylinder rod of twin shaft cylinder，Through hole is had in the side of inflation briquetting，Three grooves one are had in the bottom surface of inflation briquetting，Groove one communicates with through hole，Spray helium blob of viscose all it is embedded with in each groove one，Fix at cylinder and on seat, be fixed with spray helium electromagnetic valve，The arrival end of spray helium electromagnetic valve is provided with trachea quick connector one，The port of export of spray helium electromagnetic valve is provided with trachea quick connector two，In the port of the side through hole of inflation briquetting, trachea quick connector three is installed，Trachea quick connector two and trachea quick connector three are connected by trachea，Cylinder fix the lower end of seat by connecting plate connect described in detection seat，Detection seat has three grooves two，Groove two is embedded with O type rubber seal，The through hole communicated with groove two is had in the side of detection seat，Detection seat communicates with helium mass spectrometer leak detector junction KF25 seat.
Described electric control system outputs signal to the time relay by helium mass spectrometer leak detector, control to spray the opening and closing of helium electromagnetic valve, the amount of spray helium is controlled by the duration of valve opening spraying helium electromagnetic valve, regulated by the time relay, electric control system controls auxiliary reclay by the output signal of helium mass spectrometer leak detector, controlled the electromagnetic valve of cylinder action by auxiliary reclay again, thus control the cylinder knee-action of testing agency.
The material of described inflation briquetting is polyurethane.
The invention have the advantage that the present invention once can detect multiple battery cover board, efficiency is high, and testing agency is small and exquisite, light, and interface uses KF25, directly can be installed to helium mass spectrometer leak detector leak detection mouth by quick release flange；Only it is placed in testing agency with by battery cover board, press the initiating key of helium mass spectrometer leak detector, the spray helium detection of the evacuation to battery cover board can be automatically performed, speed is fast, the amount that lithium battery cover plate sprays helium is controlled, regulated by the electric control system time relay, can quickly, accurately, the convenient Helium Leak Test detecting lithium battery cover plate sealing property, it is achieved battery cover board sealing high accuracy, pipeline system detect entirely.
Accompanying drawing explanation
Fig. 1 is electric control theory figure of the present invention.
Fig. 2 is testing agency's structure chart.
Detailed description of the invention
As it is shown in figure 1, helium mass spectrometer leak detector 1 is connected to the normally opened point of auxiliary reclay 3 by a road output signal after initiating key, another end points of normally opened point is connected to drive on the electromagnetic valve 4 of cylinder, then is connected on cylinder by the trachea driving the electromagnetic valve 4 of cylinder.Helium mass spectrometer leak detector 1 leaves essence inspection Kou Hou mono-tunnel output signal and is connected to the normally closed point of the time relay 2, and another end points of normally closed point is connected to spray on helium electromagnetic valve 6, and the time regulating the time relay sets, and treats that the time arrives, normally closed disconnection.
A kind of method of electrode of lithium cell cover plate helium mass spectrum leak detection, include helium mass spectrometer leak detector 1, electric control system and testing agency, described testing agency is arranged on the leak detection mouth of helium mass spectrometer leak detector 1, electric control system controls the spray helium amount of testing agency, lithium battery cover plate is placed in testing agency, evacuate outside lithium battery cover plate, the battery cover board point needing detection is sprayed helium automatically, changed by helium mass spectrometer leak detector display leak rate, judge that battery cover board test point seals situation, thus it is the most qualified to judge that detected battery cover board seals.
Described electric control system includes the time relay 2, auxiliary reclay 3 and controls the electromagnetic valve 4 of cylinder action.
nullAs shown in Figure 2，Described testing agency includes twin shaft cylinder 5、Spray helium electromagnetic valve 6 and detection seat 7，Twin shaft cylinder 5 is arranged on cylinder fix on seat 8，Inflation briquetting 9 it is fixed with in the lower end of the cylinder rod of twin shaft cylinder 5，Through hole is had in the side of inflation briquetting 9，Three grooves 1 are had in the bottom surface of inflation briquetting 9，Groove 1 communicates with through hole，Spray helium blob of viscose 11 all it is embedded with in each groove 1，Fix at cylinder and on seat 8, be fixed with spray helium electromagnetic valve 6，The arrival end of spray helium electromagnetic valve 6 is provided with trachea quick connector 1，The port of export of spray helium electromagnetic valve 6 is provided with trachea quick connector 2 14，In the port of the side through hole of inflation briquetting 9, trachea quick connector 3 15 is installed，Trachea quick connector 2 14 and trachea quick connector 3 15 are connected by trachea 16，The lower end fixing seat 8 at cylinder connects described detection seat 7 by connecting plate 17，Detection seat 7 has three grooves two，Groove two is embedded with O type rubber seal 12，The through hole communicated with groove two is had in the side of detection seat 7，Detection seat 7 communicates with helium mass spectrometer leak detector 1 junction KF25 seat 18.
Described electric control system outputs signal to the time relay 2 by helium mass spectrometer leak detector 1, control to spray the opening and closing of helium electromagnetic valve 6, the amount of spray helium is controlled by the duration of valve opening spraying helium electromagnetic valve 6, regulated by the time relay 2, electric control system controls auxiliary reclay 3 by the output signal of helium mass spectrometer leak detector 1, controlled the electromagnetic valve 4 of cylinder action by auxiliary reclay 3 again, thus control the cylinder knee-action of testing agency.
The material of described inflation briquetting 9 is polyurethane.
Testing agency is arranged on the leak detection mouth of helium mass spectrometer leak detector 1, on the groove of the detection seat being placed in testing agency by battery cover board, presses the initiating key of helium mass spectrometer leak detector, can be automatically performed the spray helium detection of the evacuation to battery cover board.Detection completes, and cylinder rises, and takes out lithium battery cover plate.
Claims (5)
1. the method for an electrode of lithium cell cover plate helium mass spectrum leak detection, it is characterized in that: include helium mass spectrometer leak detector, electric control system and testing agency, described testing agency is arranged on the leak detection mouth of helium mass spectrometer leak detector, electric control system controls the spray helium amount of testing agency, lithium battery cover plate is placed in testing agency, evacuate outside lithium battery cover plate, the battery cover board point needing detection is sprayed helium automatically, changed by helium mass spectrometer leak detector display leak rate, judge that battery cover board test point seals situation, thus it is the most qualified to judge that detected battery cover board seals.
The method of a kind of electrode of lithium cell cover plate helium mass spectrum leak detection the most according to claim 1, it is characterised in that: described electric control system includes the time relay, auxiliary reclay and the electromagnetic valve of control cylinder action.
nullThe method of a kind of electrode of lithium cell cover plate helium mass spectrum leak detection the most according to claim 2，It is characterized in that: described testing agency includes twin shaft cylinder、Spray helium electromagnetic valve and detection seat，Twin shaft cylinder is arranged on cylinder fix on seat，It is fixed with inflation briquetting in the lower end of the cylinder rod of twin shaft cylinder，Through hole is had in the side of inflation briquetting，Three grooves one are had in the bottom surface of inflation briquetting，Groove one communicates with through hole，Spray helium blob of viscose all it is embedded with in each groove one，Fix at cylinder and on seat, be fixed with spray helium electromagnetic valve，The arrival end of spray helium electromagnetic valve is provided with trachea quick connector one，The port of export of spray helium electromagnetic valve is provided with trachea quick connector two，In the port of the side through hole of inflation briquetting, trachea quick connector three is installed，Trachea quick connector two and trachea quick connector three are connected by trachea，Cylinder fix the lower end of seat by connecting plate connect described in detection seat，Detection seat has three grooves two，Groove two is embedded with O type rubber seal，The through hole communicated with groove two is had in the side of detection seat，Detection seat communicates with helium mass spectrometer leak detector junction KF25 seat.
The method of a kind of electrode of lithium cell cover plate helium mass spectrum leak detection the most according to claim 3, it is characterized in that: described electric control system outputs signal to the time relay by helium mass spectrometer leak detector, control to spray the opening and closing of helium electromagnetic valve, the amount of spray helium is controlled by the duration of valve opening spraying helium electromagnetic valve, regulated by the time relay, electric control system controls auxiliary reclay by the output signal of helium mass spectrometer leak detector, controlled the electromagnetic valve of cylinder action by auxiliary reclay again, thus control the cylinder knee-action of testing agency.
The method of a kind of electrode of lithium cell cover plate helium mass spectrum leak detection the most according to claim 3, it is characterised in that: the material of described inflation briquetting is polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610435899.9A CN105953985A (en) | 2016-06-16 | 2016-06-16 | Lithium battery electrode cover plate helium mass spectrum leak detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610435899.9A CN105953985A (en) | 2016-06-16 | 2016-06-16 | Lithium battery electrode cover plate helium mass spectrum leak detection method |
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| Publication Number | Publication Date |
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| CN105953985A true CN105953985A (en) | 2016-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610435899.9A Withdrawn CN105953985A (en) | 2016-06-16 | 2016-06-16 | Lithium battery electrode cover plate helium mass spectrum leak detection method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885656A (en) * | 2017-03-04 | 2017-06-23 | 广州灵帕机电科技有限公司 | A kind of cover plate of power battery helium leak test system |
| CN107894307A (en) * | 2017-12-28 | 2018-04-10 | 安徽智森电子科技有限公司 | A kind of vacuum Hai Jian mechanisms for being used to detect battery cap sealing |
| CN113686493A (en) * | 2021-08-25 | 2021-11-23 | 安徽诺益科技有限公司 | Calibration system and calibration method for helium mass spectrometer leak detector |
| CN113804363A (en) * | 2021-10-14 | 2021-12-17 | 湖南兴旭能新能源科技有限公司 | Lithium ion battery leak detection device |
-
2016
- 2016-06-16 CN CN201610435899.9A patent/CN105953985A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885656A (en) * | 2017-03-04 | 2017-06-23 | 广州灵帕机电科技有限公司 | A kind of cover plate of power battery helium leak test system |
| CN106885656B (en) * | 2017-03-04 | 2020-04-17 | 广州灵帕机电科技有限公司 | Helium leakage detection system for power battery cover plate |
| CN107894307A (en) * | 2017-12-28 | 2018-04-10 | 安徽智森电子科技有限公司 | A kind of vacuum Hai Jian mechanisms for being used to detect battery cap sealing |
| CN107894307B (en) * | 2017-12-28 | 2023-06-16 | 安徽智森电子科技有限公司 | Vacuum helium detection mechanism for detecting tightness of battery top cover |
| CN113686493A (en) * | 2021-08-25 | 2021-11-23 | 安徽诺益科技有限公司 | Calibration system and calibration method for helium mass spectrometer leak detector |
| CN113804363A (en) * | 2021-10-14 | 2021-12-17 | 湖南兴旭能新能源科技有限公司 | Lithium ion battery leak detection device |
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Application publication date: 20160921 |
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