CN115773845A - Electrolyte leakage standard calibrating device - Google Patents
Electrolyte leakage standard calibrating device Download PDFInfo
- Publication number
- CN115773845A CN115773845A CN202310102365.4A CN202310102365A CN115773845A CN 115773845 A CN115773845 A CN 115773845A CN 202310102365 A CN202310102365 A CN 202310102365A CN 115773845 A CN115773845 A CN 115773845A
- Authority
- CN
- China
- Prior art keywords
- vacuum
- valve
- standard
- box
- electrolyte leakage
- 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.)
- Pending
Links
- 239000003792 electrolyte Substances 0.000 title claims abstract description 55
- 238000001514 detection method Methods 0.000 claims abstract description 37
- 238000012360 testing method Methods 0.000 claims description 17
- 238000011084 recovery Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 7
- 238000005086 pumping Methods 0.000 claims description 4
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 3
- 241001417527 Pempheridae Species 0.000 claims 3
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 11
- 238000005259 measurement Methods 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000010408 sweeping Methods 0.000 description 5
- 238000004064 recycling Methods 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010606 normalization Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000012925 reference material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The invention relates to an electrolyte leakage standard calibrating device, which comprises: the vacuum assembly comprises a vacuum box, a vacuum pump and a first valve, the vacuum pump is communicated with the vacuum box and used for vacuumizing the vacuum box, one end of the first valve is communicated with the vacuum box, and the other end of the first valve is communicated with the calibration piece; the first detection piece is used for detecting the weight of the measured standard piece. The mass after the leakage is subtracted from the mass before the leakage to obtain the leakage loss mass of the standard component to be measured in unit time, the steam density of electrolyte is obtained according to the temperature in the vacuum box, and the volume flow of the standard component to be measured at the current temperature can be obtained through the conversion relation between the volume and the mass, so that the calibration result of the standard component to be measured is obtained.
Description
Technical Field
The invention relates to the technical field of calibration, in particular to a calibration device for an electrolyte leakage standard.
Background
The lithium ion battery has the defects that the electrolyte leakage is light, the function is abnormal and the spontaneous combustion is caused, so the production quality of the battery needs to be controlled. A common difficulty in battery electrolyte (or electrolyte solvent) leakage detection techniques is the problem of "quantifying" the amount of electrolyte or electrolyte solvent leakage. The electrolyte leakage standard device is used for quantitatively simulating a scene that electrolyte leaks out due to insufficient sealing performance of a shell of a lithium ion battery. In the production process of a battery factory, the detection capability of relevant battery leakage detection process equipment is calibrated through an electrolyte leakage standard device, and the performance of the process equipment is verified or adjusted.
However, there is no relevant product standard of the electrolyte leakage standard device at present, and there is no leakage quantity calibration technical method, and the industry cannot compare and trace the leakage standard device quantity value by a standard unified method.
Disclosure of Invention
Based on this, it is necessary to provide an electrolyte leakage standard calibration device to implement the comparison and tracing of the leakage standard quantity value by using a standard unified method.
The technical scheme is as follows: an electrolyte leakage etalon calibration apparatus comprising: the vacuum assembly comprises a vacuum box, a vacuum pump and a first valve, the vacuum pump is communicated with the vacuum box and used for vacuumizing the vacuum box, one end of the first valve is communicated with the vacuum box, and the other end of the first valve is communicated with the calibration piece; the first detection piece is used for detecting the weight of the detected standard piece.
According to the calibrating device for the electrolyte leakage standard, before calibration work is started, the standard to be measured is placed in a proper test environment, so that the temperature of the standard to be measured is consistent with the temperature of the environment. When the test is started, the vacuum pump is started to pump out the gas in the vacuum box, so that the pressure of the vacuum box is in a set range. And the first detection piece is used for weighing the standard piece to be detected, and the mass of the standard piece to be detected before leakage is obtained. And then communicating the measured standard part with a vacuum box through a first valve, opening the first valve, starting countdown at the same time, leaking electrolyte in the measured standard part into the vacuum box, closing the first valve and the vacuum pump after timing is finished, and weighing the measured standard part by using a first detection part after the measured standard part is detached from the vacuum box to obtain the quality of the measured standard part after leakage. Subtracting the mass after leakage from the mass before leakage to obtain the leakage loss mass of the standard component to be measured in unit time, namely obtaining the mass flow of the standard component to be measured, obtaining the steam density of the electrolyte according to the temperature in the vacuum box, and obtaining the volume flow of the standard component to be measured at the current temperature through the conversion relation of volume and mass, thereby obtaining the calibration result of the standard component to be measured. The working principle of the device is convenient for standardization and normalization, and the obtained test results can be transversely compared regardless of whether the test results are expressed by mass values or flow values converted into gas phase.
In one embodiment, the electrolyte leakage standard calibration device further comprises a sweeping member and a second valve, wherein the sweeping member is communicated with the vacuum box, the second valve is communicated between the sweeping member and the vacuum box in an opening-closing mode, and the sweeping member is used for conducting blowing sweeping on the vacuum box.
In one embodiment, the calibration device for the electrolyte leakage standard further comprises a pressure control part, wherein the pressure control part is communicated between the vacuum pump and the vacuum box and is electrically connected with the vacuum pump, and the pressure control part is used for controlling the pumping pressure of the vacuum pump.
In one embodiment, the calibration device for the electrolyte leakage standard further comprises a timing element, wherein the timing element is electrically connected with the first valve and/or the second valve, the timing element is used for timing and outputting a first control signal, the first valve is opened or closed after receiving the first control signal, and/or the second valve is opened or closed after receiving the first control signal.
In one embodiment, the calibration device for the electrolyte leakage standard further comprises a second detection element, wherein the second detection element is connected with the vacuum box and is used for detecting the temperature of the vacuum box.
In one embodiment, the calibration device for the electrolyte leakage standard further comprises a display unit and a third detection piece, the third detection piece is connected with the vacuum box, the display unit is electrically connected with the third detection piece, the third detection piece is used for detecting the pressure in the vacuum box, and the display unit is used for displaying the detection information of the third detection piece.
In one embodiment, the vacuum box comprises a box body and a box cover, the box body is detachably connected with the box cover, the first detection piece is located in the box body, and the box body is further used for containing the measured standard piece.
In one embodiment, the calibration device for an electrolyte leakage standard further comprises a third valve, wherein the third valve is positioned in the box body and is used for being connected with a standard to be measured in an openable and closable manner.
In one embodiment, the vacuum box further comprises a recovery member, wherein the recovery member is communicated with the vacuum pump and is detachably connected with the vacuum pump, and the recovery member is used for recovering the test medium.
In one embodiment, the calibration apparatus for the electrolyte leakage standard further includes a control module, the vacuum pump and the first valve are electrically connected to the control module, and the control module can control the opening and closing of the vacuum pump and the first valve.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a first schematic diagram of an embodiment of an electrolyte leakage calibrator;
FIG. 2 is a second schematic diagram of the operation of the electrolyte leakage calibrator calibration device according to an embodiment;
fig. 3 is a third schematic diagram of the calibration apparatus for an electrolyte leakage standard according to an embodiment.
Description of reference numerals:
100. an electrolyte leakage standard calibration device; 110. a vacuum assembly; 111. a vacuum box; 112. a vacuum pump; 113. a first valve; 114. a third valve; 120. a first detecting member; 121. a second detecting member; 122. a third detecting member; 123. a display unit; 130. a cleaning member; 131. a second valve; 140. a pressure control member; 150. a timing member; 160. recovering the parts; 200. and (5) measuring a standard component.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will recognize without departing from the spirit and scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1, fig. 1 is a schematic diagram illustrating an operation of an electrolyte leakage standard calibration apparatus 100 according to an embodiment of the present invention, in which an electrolyte leakage standard calibration apparatus 100 according to an embodiment of the present invention is provided, and the electrolyte leakage standard calibration apparatus 100 includes: a vacuum assembly 110 and a first detecting member 120. The vacuum assembly 110 includes a vacuum chamber 111, a vacuum pump 112 and a first valve 113, wherein the vacuum pump 112 is connected to the vacuum chamber 111, and the vacuum pump 112 is used for evacuating the vacuum chamber 111. One end of the first valve 113 is in communication with the vacuum box 111 and the other end is for communication with the calibration member. The first detecting member 120 is used for detecting the weight of the measured standard member 200.
Before the calibration operation is started, the calibration device 100 for the electrolyte leakage standard places the measured standard 200 in a suitable test environment, so that the temperature of the measured standard 200 is consistent with the temperature of the environment. When the test is started, the vacuum pump 112 is started to evacuate the gas in the vacuum box 111 so that the pressure in the vacuum box 111 is within a set range. Then, the first detection member 120 weighs the standard object 200, and the mass of the standard object 200 before leakage is acquired. And then, communicating the measured standard part 200 with the vacuum box 111 through the first valve 113, opening the first valve 113, starting countdown, leaking the electrolyte in the measured standard part 200 into the vacuum box 111, closing the first valve 113 and the vacuum pump 112 after the timing is finished, weighing the measured standard part 200 by using the first detection part 120 after the measured standard part 200 is detached from the vacuum box 111, and acquiring the mass of the measured standard part 200 after the leakage. Subtracting the mass after leakage from the mass before leakage to obtain the leakage loss mass of the measured standard component 200 in unit time, namely obtaining the mass flow of the measured standard component 200, obtaining the steam density of the electrolyte according to the temperature in the vacuum box 111, and obtaining the volume flow of the measured standard component 200 at the current temperature through the conversion relation of volume and mass, thereby obtaining the calibration result of the measured standard component 200. The working principle of the device is convenient for standardization and normalization, and the obtained test result can be transversely compared whether expressed by a quality value or a flow value converted into a gas phase.
When the quality of the standard part 200 to be measured before leakage is measured, repeated measurement is carried out at least three times, so that the three times of measurement data are kept consistent, the data are recorded as the quality of the standard part 200 to be measured before leakage, the calibration precision is improved, and the reliability of the test result is ensured.
Similarly, when measuring the quality of the standard part 200 after leakage, the measurement is repeated at least three times, so that the three times of measurement data are kept consistent, the data is recorded as the quality of the standard part 200 after leakage, the calibration precision is improved, the accuracy of the difference is ensured, and the reliability of the test result is improved.
Alternatively, the first detecting member 120 is an electronic scale, a load cell, a high-precision electronic balance, or other detecting device.
Specifically, referring to fig. 1, the first detecting element 120 is a high-precision electronic balance with a precision of 0.1mg. Therefore, in the weight detection process, real-time reading can be achieved, estimation reading is not needed, and the measurement precision and accuracy are guaranteed. The present embodiment provides only a specific implementation of the first detecting element 120, but not limited thereto.
In one embodiment, referring to fig. 1, the calibration apparatus 100 further includes a cleaning element 130 and a second valve 131, the cleaning element 130 is in communication with the vacuum chamber 111, the second valve 131 is in open-close communication between the cleaning element 130 and the vacuum chamber 111, and the cleaning element 130 is used for blowing cleaning the vacuum chamber 111. After the countdown is finished, the reference material 200 stops leaking gas into the vacuum chamber 111, and the cleaning member 130 blows gas into the vacuum chamber 111, so that the electrolyte gas in the vacuum chamber 111 is discharged out of the vacuum chamber 111, and the vacuum atmosphere in the vacuum chamber 111 can be broken to return to the atmospheric pressure, which is advantageous for the reliability of the calibration result.
In one embodiment, referring to fig. 1, the calibration apparatus 100 for electrolyte leakage standard further includes a pressure controller 140, the pressure controller 140 is connected between the vacuum pump 112 and the vacuum chamber 111, the pressure controller 140 is electrically connected to the vacuum pump 112, and the pressure controller 140 is used for controlling the pumping pressure of the vacuum pump 112. Thus, the pressure control member 140 can be used to accurately and quantitatively control the pressure value of the vacuum environment after the vacuum pump 112 evacuates the vacuum box 111, so as to ensure that the vacuum pressure in the vacuum box 111 is consistent during each test, thereby ensuring the reliability of the experiment.
Alternatively, the leak may be timed manually during testing, or automatically controlled to count down.
In one embodiment, referring to fig. 1, the calibration apparatus 100 for an electrolyte leakage standard further includes a timer 150, the timer 150 is electrically connected to the first valve 113 and/or the second valve 131, the timer 150 is used for timing and outputting a first control signal, the first valve 113 is opened or closed after receiving the first control signal, and/or the second valve 131 is opened or closed after receiving the first control signal. Thus, after the timing of the timing piece 150 is finished, the first valve 113 can be automatically opened or closed, which is beneficial to stopping the leakage of the standard piece 200 to be tested in time, thereby controlling the leakage flow and improving the testing precision.
It should be noted that, the timer 150 is electrically connected to the first valve 113 and/or the second valve 131, and it should be understood that, in one embodiment, the timer 150 is electrically connected to the first valve 113, and the first valve 113 is opened or closed after receiving the first control signal. In another embodiment, the timer 150 is electrically connected to the second valve 131, and the second valve 131 is opened or closed after receiving the second control signal. In other embodiments, the timer 150 is electrically connected to the first valve 113 and the second valve 131 at the same time, and the first valve 113 and the second valve 131 are opened or closed at the same time after receiving the first control signal.
In one embodiment, referring to fig. 1, the calibration apparatus 100 for an electrolyte leakage standard further includes a second detecting element 121, the second detecting element 121 is connected to the vacuum chamber 111, and the second detecting element 121 is used for detecting the temperature of the vacuum chamber 111. In this way, the second detecting member 121 is used to monitor the temperature of the vacuum box 111, and ensure that the temperature variation during the calibration process is within a certain range.
Alternatively, the second detection member 121 may be a thermometer, a temperature sensor, a temperature measuring gun, a temperature transmitter, or other temperature detection device.
Specifically, referring to fig. 1, the second detecting element 121 is an electronic thermometer, the second detecting element 121 extends into the vacuum chamber 111, and the second detecting element 121 is used for detecting the temperature inside the vacuum chamber 111. Therefore, the temperature can be displayed in real time, the connection with other control systems is facilitated, the reliability of temperature monitoring is guaranteed, and the calibration precision of the converted flow is improved. The present embodiment provides only a specific implementation of the second detecting element 121, but not limited thereto.
In one embodiment, referring to fig. 1, the calibration apparatus 100 further includes a display unit 123 and a third detecting element 122, the third detecting element 122 is connected to the vacuum chamber 111, the display unit 123 is electrically connected to the third detecting element 122, the third detecting element 122 is configured to detect a pressure in the vacuum chamber 111, and the display unit 123 is configured to display a detection information of the third detecting element 122. For example, the third detecting member 122 is a vacuum gauge. In this manner, the gauge and display unit 123 is used to display the pressure in the vacuum box 111, and can monitor whether there is a leak in the calibration device by the gauge, and can also detect the vacuum pressure fluctuation during the calibration process by the gauge. Through the pressure fluctuation condition, the uniformity of gas precipitation in the measured standard component 200 can be obtained, and the reliability of the calibration result is ensured.
Referring to fig. 2, fig. 2 is a second schematic diagram illustrating the operation of the calibration apparatus 100 for an electrolyte leakage standard according to an embodiment of the present invention; in one embodiment, the vacuum box 111 includes a box body and a box cover, the box body is detachably connected with the box cover, the first detecting member 120 is located in the box body, and the box body is further used for accommodating the detected standard member 200. Therefore, the first detection piece 120 and the measured standard piece 200 are both positioned in the vacuum box 111, the weight of the measured standard piece 200 before leakage is read in the vacuum box 111 before vacuum pumping, the moving process of the measured standard piece 200 during weighing can be reduced, and the quality measurement is more accurate and reliable. The measured standard part 200 is arranged in the vacuum box 111, and air is not extracted in advance in the calibration process, so that the first detection part 120 and the measured standard part 200 are placed in the vacuum box 111 to occupy partial volume of the vacuum box 111 in order to reduce errors in the calibration process, air in the vacuum box 111 can be reduced, and the reliability of a calibration result is improved.
Referring to fig. 3, fig. 3 is a third schematic diagram illustrating the operation of the calibration apparatus 100 for an electrolyte leakage standard according to an embodiment of the present invention; in one embodiment, the calibration device 100 for an electrolyte leakage standard further comprises a third valve 114, the third valve 114 is located in the tank, and the third valve 114 is used for being connected with the standard 200 to be measured in an openable and closable manner. In this way, the test procedure is that the second valve 131 is closed first, the measured standard component 200 is placed on the first detection component 120 for measurement, and at least 3 measurements are performed, so as to ensure that the value of each measurement remains the same and is recorded as the quality of the measured standard component 200 before leakage. Then, the vacuum box 111 is opened, the electrolyte leakage standard is placed in the vacuum box 111, the vacuum box 111 is then closed, the vacuum pump 112 is started to pump out the gas in the vacuum box 111, the target pressure is set on the pressure control member 140, and the pressure in the vacuum box 111 is monitored by the vacuum gauge to ensure that the pressure in the vacuum box 111 is within the set range. When the pressure monitored by the vacuum gauge reaches a preset pressure, the third valve 114 is opened, and the timer 150 is started, and the timer 150 is set to a countdown mode for setting a time. When the countdown is completed, the third valve 114 and the vacuum pump 112 are closed, the second valve 131 is opened, the inside of the vacuum box 111 is purged, and the vacuum atmosphere in the vacuum box 111 is broken to return to the atmospheric pressure state while purging. Then the vacuum box 111 is opened, the measured standard part 200 is placed on an electronic balance to be weighed, at least 3 times of measurement are repeated, the measured data of 3 times are kept consistent, the measured data are recorded as the mass of the measured standard part 200 after calibration, the mass after calibration is subtracted from the mass before calibration to obtain the loss mass of the measured standard part 200 in unit time, namely the mass flow of the measured standard part 200, the steam density of the electrolyte is obtained according to the temperature in the vacuum box 111, and the volume flow of the measured standard part 200 at the current temperature can be obtained through the conversion relation of the volume and the mass.
Repeating the above actions for at least 3 times to obtain the volume flow of the calibration result of the measured standard component 200 for 3 times, and taking the average value of the volume flow as the final calibration result of the measured standard component 200. Therefore, the third valve 114 and the measured standard 200 are both located inside the vacuum box 111, and external connection is not required, so that the reliability of the calibration result can be further improved.
In one embodiment, referring to fig. 1, 2 and 3, the vacuum box 111 further includes a recycling member 160, the recycling member 160 is connected to the vacuum pump 112 and detachably, and the recycling member 160 is used for recycling the testing medium. Thus, when the cleaning part 130 cleans the vacuum box 111, the precipitated gas in the vacuum box 111 can be blown to the recovery part 160 for recovery, so as to avoid the harmful gas from randomly discharging polluted air and polluting the laboratory environment.
In one embodiment, the calibration apparatus 100 further includes a control module (not shown), wherein the vacuum pump 112 and the first valve 113 are electrically connected to the control module, and the control module is capable of controlling the opening and closing of the vacuum pump 112 and the first valve 113. Further, the timing element 150, the second valve 131, the third valve 114, the first detecting element 120, the second detecting element 121, the third detecting element 122 and the display unit 123 are all electrically connected to the control module. Therefore, automatic control of each component can be realized through the control module, and the improvement of the test efficiency and the operation convenience are facilitated.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent should be subject to the appended claims.
Claims (10)
1. An electrolyte leakage etalon calibration apparatus, comprising:
the vacuum assembly comprises a vacuum box, a vacuum pump and a first valve, the vacuum pump is communicated with the vacuum box and used for vacuumizing the vacuum box, one end of the first valve is communicated with the vacuum box, the other end of the first valve is communicated with the calibration piece, the vacuum box comprises a recovery piece, the recovery piece is communicated with the vacuum pump and detachably connected with the vacuum pump, and the recovery piece is used for recovering a test medium;
the first detection piece is used for detecting the weight of the detected standard piece.
2. The electrolyte leakage standard calibration device of claim 1, further comprising a sweeper in communication with the vacuum tank and a second valve in open-closed communication between the sweeper and the vacuum tank, the sweeper configured to blow clean the vacuum tank.
3. The electrolyte leakage standard calibration device of claim 1, further comprising a pressure control component in communication between the vacuum pump and the vacuum chamber, the pressure control component being electrically connected to the vacuum pump, the pressure control component being configured to control a pumping pressure of the vacuum pump.
4. The electrolyte leakage standard calibration device of claim 2, further comprising a timing element electrically connected to the first valve and/or the second valve, the timing element configured to time and output a first control signal, the first valve configured to open or close upon receiving the first control signal, and/or the second valve configured to open or close upon receiving the first control signal.
5. The electrolyte leakage etalon calibration apparatus of claim 1, further comprising a second detection element, the second detection element being connected to the vacuum box, the second detection element being configured to detect a temperature of the vacuum box.
6. The calibration device for an electrolyte leakage standard according to claim 5, further comprising a display unit and a third detection member, wherein the third detection member is connected to the vacuum chamber, the display unit is electrically connected to the third detection member, the third detection member is used for detecting the pressure in the vacuum chamber, and the display unit is used for displaying the detection information of the third detection member.
7. The electrolyte leakage standard calibration device of claim 6, wherein the third detection member is a vacuum gauge.
8. The calibration device for the electrolyte leakage standard according to claim 1, wherein the vacuum box comprises a box body and a box cover, the box body is detachably connected with the box cover, the first detection member is positioned in the box body, and the box body is further used for accommodating the standard to be measured.
9. The electrolyte leakage standard calibration device of claim 8, further comprising a third valve located in the box and adapted to be connected to a standard under test in an openable and closable manner.
10. The electrolyte leakage standard calibration device according to any one of claims 1 to 9, further comprising a control module, wherein the vacuum pump and the first valve are electrically connected to the control module, and the control module can control the opening and closing of the vacuum pump and the first valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310102365.4A CN115773845A (en) | 2023-02-13 | 2023-02-13 | Electrolyte leakage standard calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310102365.4A CN115773845A (en) | 2023-02-13 | 2023-02-13 | Electrolyte leakage standard calibrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115773845A true CN115773845A (en) | 2023-03-10 |
Family
ID=85393617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310102365.4A Pending CN115773845A (en) | 2023-02-13 | 2023-02-13 | Electrolyte leakage standard calibrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115773845A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117168712A (en) * | 2023-11-03 | 2023-12-05 | 宁德时代新能源科技股份有限公司 | Detection assembly, detection equipment and detection method thereof |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5303577A (en) * | 1993-04-09 | 1994-04-19 | Montgomery Joe M | Method and apparatus for detecting leaks in liquid storage tanks |
| EP2447694A1 (en) * | 2010-10-28 | 2012-05-02 | Boehringer Ingelheim Pharma GmbH & Co. KG | Test leak for inspecting leak measurement systems |
| CN202599485U (en) * | 2011-12-16 | 2012-12-12 | 成都泛华航空仪表电器有限公司 | A novel flow mass detection device |
| CN104729798A (en) * | 2015-04-02 | 2015-06-24 | 天津力神电池股份有限公司 | Battery sealing performance testing method |
| CN204730916U (en) * | 2015-06-16 | 2015-10-28 | 辽宁聚焦科技有限公司 | A kind of large-scale mobile steam heat and mass rate calibrating installation |
| CN209589150U (en) * | 2019-03-29 | 2019-11-05 | 包头钢铁（集团）有限责任公司 | A kind of ore pulp caliberating device |
| CN111157186A (en) * | 2019-11-09 | 2020-05-15 | 郑州海为电子科技有限公司 | Comprehensive performance test device for airtight ring |
| CN210664896U (en) * | 2019-10-21 | 2020-06-02 | 中国五环工程有限公司 | On-line ammonia leakage detection system |
| CN112763206A (en) * | 2020-12-30 | 2021-05-07 | 中国计量大学 | Refrigerant valve leakage test system |
| CN112781692A (en) * | 2021-01-29 | 2021-05-11 | 核工业理化工程研究院 | Method and device for calibrating flow coefficient of orifice plate by pressure intensity-mass method |
| CN112849772A (en) * | 2021-03-08 | 2021-05-28 | 广州阿普顿自动化***有限公司 | Vacuum box and helium mass spectrum sealing performance testing equipment |
| CN114486096A (en) * | 2022-02-10 | 2022-05-13 | 大连中比动力电池有限公司 | Sealing detection device and method for cylindrical steel shell lithium battery |
| CN216559247U (en) * | 2021-11-22 | 2022-05-17 | 河北大学 | Water flow teaching experiment standard device |
| CN217404062U (en) * | 2022-04-06 | 2022-09-09 | 四川泰锐石油化工有限公司 | Device for automatically weighing and testing viscosity of Martin funnel |
| CN115127736A (en) * | 2022-06-28 | 2022-09-30 | 上腾科技(广州)有限公司 | Tightness testing device and tightness testing system |
| CN115127737A (en) * | 2022-06-28 | 2022-09-30 | 上腾科技(广州)有限公司 | Tightness detection device |
| CN115248098A (en) * | 2022-08-24 | 2022-10-28 | 上腾科技(广州)有限公司 | Leak test standard and leak test system |
| CN115452276A (en) * | 2022-08-26 | 2022-12-09 | 苏州源展材料科技有限公司 | Leakage detection device and method for ALD (atomic layer deposition) source split charging steel cylinder |
| CN115493753A (en) * | 2022-09-20 | 2022-12-20 | 珠海格力电器股份有限公司 | Refrigeration equipment leak source detection system and refrigeration equipment production line |
-
2023
- 2023-02-13 CN CN202310102365.4A patent/CN115773845A/en active Pending
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5303577A (en) * | 1993-04-09 | 1994-04-19 | Montgomery Joe M | Method and apparatus for detecting leaks in liquid storage tanks |
| EP2447694A1 (en) * | 2010-10-28 | 2012-05-02 | Boehringer Ingelheim Pharma GmbH & Co. KG | Test leak for inspecting leak measurement systems |
| CN202599485U (en) * | 2011-12-16 | 2012-12-12 | 成都泛华航空仪表电器有限公司 | A novel flow mass detection device |
| CN104729798A (en) * | 2015-04-02 | 2015-06-24 | 天津力神电池股份有限公司 | Battery sealing performance testing method |
| CN204730916U (en) * | 2015-06-16 | 2015-10-28 | 辽宁聚焦科技有限公司 | A kind of large-scale mobile steam heat and mass rate calibrating installation |
| CN209589150U (en) * | 2019-03-29 | 2019-11-05 | 包头钢铁（集团）有限责任公司 | A kind of ore pulp caliberating device |
| CN210664896U (en) * | 2019-10-21 | 2020-06-02 | 中国五环工程有限公司 | On-line ammonia leakage detection system |
| CN111157186A (en) * | 2019-11-09 | 2020-05-15 | 郑州海为电子科技有限公司 | Comprehensive performance test device for airtight ring |
| CN112763206A (en) * | 2020-12-30 | 2021-05-07 | 中国计量大学 | Refrigerant valve leakage test system |
| CN112781692A (en) * | 2021-01-29 | 2021-05-11 | 核工业理化工程研究院 | Method and device for calibrating flow coefficient of orifice plate by pressure intensity-mass method |
| CN112849772A (en) * | 2021-03-08 | 2021-05-28 | 广州阿普顿自动化***有限公司 | Vacuum box and helium mass spectrum sealing performance testing equipment |
| CN216559247U (en) * | 2021-11-22 | 2022-05-17 | 河北大学 | Water flow teaching experiment standard device |
| CN114486096A (en) * | 2022-02-10 | 2022-05-13 | 大连中比动力电池有限公司 | Sealing detection device and method for cylindrical steel shell lithium battery |
| CN217404062U (en) * | 2022-04-06 | 2022-09-09 | 四川泰锐石油化工有限公司 | Device for automatically weighing and testing viscosity of Martin funnel |
| CN115127736A (en) * | 2022-06-28 | 2022-09-30 | 上腾科技(广州)有限公司 | Tightness testing device and tightness testing system |
| CN115127737A (en) * | 2022-06-28 | 2022-09-30 | 上腾科技(广州)有限公司 | Tightness detection device |
| CN115248098A (en) * | 2022-08-24 | 2022-10-28 | 上腾科技(广州)有限公司 | Leak test standard and leak test system |
| CN115452276A (en) * | 2022-08-26 | 2022-12-09 | 苏州源展材料科技有限公司 | Leakage detection device and method for ALD (atomic layer deposition) source split charging steel cylinder |
| CN115493753A (en) * | 2022-09-20 | 2022-12-20 | 珠海格力电器股份有限公司 | Refrigeration equipment leak source detection system and refrigeration equipment production line |
Non-Patent Citations (1)
| Title |
|---|
| 胡楠 等: "《浆料输送与输送机械》", 中国轻工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117168712A (en) * | 2023-11-03 | 2023-12-05 | 宁德时代新能源科技股份有限公司 | Detection assembly, detection equipment and detection method thereof |
| CN117168712B (en) * | 2023-11-03 | 2024-04-02 | 宁德时代新能源科技股份有限公司 | Detection assembly, detection equipment and detection method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6635379B2 (en) | Battery sealing inspection method | |
| CN1268925C (en) | Method and device for calibrating humidity sensor and sensor arrangement comprising humidity sensor that can be calibrated | |
| CN106716097B (en) | For calibrating the device and method for being used for the membrane well of leak detection | |
| WO2019215339A1 (en) | Method for leak testing a battery cell and relative leak testing system | |
| CN115773845A (en) | Electrolyte leakage standard calibrating device | |
| CN111551476B (en) | Gas permeability testing system and method based on differential pressure method | |
| EP3736903B1 (en) | Method for leak testing a battery cell | |
| CN111982425B (en) | Lithium ion battery air tightness detection method and device | |
| JP2008309698A (en) | Airtightness inspection device, airtightness inspection method and method for manufacturing airtight product | |
| CN211061134U (en) | Leak detection device | |
| CN113654739A (en) | Automatic air tightness detection system and detection method thereof | |
| EP3736902B1 (en) | System and method for leak testing a battery cell | |
| CN113138057A (en) | Soft package battery leakage detection method and system | |
| CN110057506B (en) | Method for testing battery tightness and method for testing battery quality | |
| CN208751811U (en) | Test device for air tightness | |
| US20230280233A1 (en) | Leak detection method and system | |
| JP3983479B2 (en) | Battery leakage inspection device | |
| CN111562072A (en) | Detection method, detection apparatus, and computer-readable storage medium | |
| CN111678565A (en) | Procedure for verifying pipettes | |
| CN216132647U (en) | Capacitance air tightness detection device | |
| Meyer et al. | The second-generation NIST standard hygrometer | |
| US5442957A (en) | Calibration technique for production mass air flow sensor flow stands | |
| JP2016118528A (en) | Method and device for measuring leakage from elastic body | |
| CN108287311A (en) | A kind of power battery short-circuit test machine and test method | |
| CN115824521A (en) | Seal detection device and detection method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20230310 |
|
| RJ01 | Rejection of invention patent application after publication |