CN114935434A - End connector, film type leakage detection device and leakage detection method - Google Patents
End connector, film type leakage detection device and leakage detection method Download PDFInfo
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- CN114935434A CN114935434A CN202210355392.8A CN202210355392A CN114935434A CN 114935434 A CN114935434 A CN 114935434A CN 202210355392 A CN202210355392 A CN 202210355392A CN 114935434 A CN114935434 A CN 114935434A
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- 238000001514 detection method Methods 0.000 title claims abstract description 95
- 239000007788 liquid Substances 0.000 claims abstract description 73
- 239000002184 metal Substances 0.000 claims description 41
- 239000010408 film Substances 0.000 claims description 29
- 238000002788 crimping Methods 0.000 claims description 17
- 239000010409 thin film Substances 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 8
- 239000012528 membrane Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 abstract description 7
- 230000006698 induction Effects 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 5
- 230000003321 amplification Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/6608—Structural association with built-in electrical component with built-in single component
- H01R13/6616—Structural association with built-in electrical component with built-in single component with resistor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/20—Connectors or connections adapted for particular applications for testing or measuring purposes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a terminal connector, a film type liquid leakage detection device and a liquid leakage detection method. According to the invention, the terminal resistor is preset in the connector, so that when the leakage detection band is accessed, the detection circuit can receive the resistor feedback to judge the access of the induction band. When liquid leakage occurs, the detection circuit receives the resistance value change, and accordingly liquid leakage is judged. This connector can effectively judge whether the weeping sensor inserts, simple to operate, and the practicality is strong.
Description
Technical Field
The invention belongs to the technical field of leakage detection, and particularly relates to a terminal connector, a film type leakage detection device and a leakage detection method.
Background
The liquid leakage detection system and the liquid leakage detection device are applied to multiple fields and mainly comprise a detection circuit, a liquid leakage sensor and a connector. At present, whether liquid leakage occurs is judged mainly by detecting resistance value changes fed back by liquid leakage sensors before and after liquid leakage. The main forms of the leakage sensor comprise a leakage sensing cable and a film type leakage sensing strip, and the film type leakage sensing strip has more advantages in application due to high sensitivity.
When liquid leakage occurs, the leaked liquid can be communicated with the row holes of the film type liquid leakage sensing belt conducting circuits, and after the detection circuit is connected with the liquid leakage sensor through the connector, whether leakage occurs or not can be judged according to communication, and an alarm is given out or transmitted to a system.
The traditional liquid leakage detection device has the advantages that the resistance value is the same when the liquid leakage sensor is not connected into the liquid leakage detection device but is not connected into the liquid leakage detection device, the liquid leakage detection device is close to infinity, the existing connecting device cannot judge whether the liquid leakage sensing belt is connected into the liquid leakage sensing belt or not, the reason that no alarm is given cannot be judged is that the liquid leakage sensor is damaged or the liquid leakage is not caused, and the accuracy of the liquid leakage detection system in judging the liquid leakage can be influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a terminal connector, a film type leakage detection device and a leakage detection method. When liquid leakage occurs, the detection circuit receives the resistance value change, and accordingly liquid leakage is judged. This connector can effectively judge whether the weeping sensor inserts, simple to operate, and the practicality is strong.
The purpose of the invention is realized by the following technical scheme:
the utility model provides an end connector, includes the connector box body, the connector still including set up in metal guide rail in the connector box body, metal guide rail lower surface is equipped with a plurality of metal contact pins, metal contact pin with leave the film chamber that inserts the detection film between connector box body lower surface, metal guide rail upper surface is provided with the metal utmost point, metal utmost point fixedly connected with terminal resistance.
Further, the connector box body is close to the one side of terminal resistance still is provided with the crimping apron, the crimping apron through set up in the rotation axis of connector box body side is fixed on the connector box body, be provided with apron fixed part and resistance on the crimping apron and hold the chamber, the plane of connector box body internal portion metal guide that installs still is equipped with and laps fixed part complex apron installation component, when the crimping apron rotatory to the lower surface with when the metal guide pastes mutually, laps the fixed crimping apron of installation component and apron fixed part cooperation, and will metal contact pin compresses tightly with the male detection film.
Further, the cover fixing part includes a cover fixing hole into which a screw can be inserted, and the cover mounting part includes a cover mounting screw hole for mounting the screw.
Furthermore, the connector box body is also provided with a box body mounting component for fixing the connector box body at a mounting position.
Further, the box body mounting part comprises a mounting hole penetrating through the upper surface and the lower surface, the mounting hole is used for being matched with a threaded hole of a mounting position, and the tail end connector is mounted and fixed through a screw.
In another aspect, the present invention further provides a membrane type liquid leakage detection device, comprising the end connector of any one of claims 1 to 5, wherein the end connector is connected to an initial connector through a membrane type liquid leakage detection belt, and the initial connector is connected to a detection circuit.
Furthermore, the detection circuit comprises a signal acquisition circuit, a voltage amplification circuit, a main control chip, a peripheral circuit and a communication and alarm circuit.
Furthermore, the signal acquisition circuit comprises a reference resistor and a power supply, and the power supply is used for providing working voltage for the reference resistor and the terminal resistor.
On the other hand, the invention also provides a liquid leakage detection method based on the film type liquid leakage detection device, which comprises the following steps:
acquiring detection voltage acquired in a signal acquisition circuit;
comparing the amplified detection voltage with a voltage state threshold value, and judging whether liquid leakage occurs at present, wherein the method specifically comprises the following steps:
when Vs is more than or equal to 0 and less than V1, the current state is that the film type leakage detection belt is not connected;
when the V1 is less than or equal to Vs < V2, the current state is that the film type liquid leakage detection belt is connected and liquid leakage does not occur;
when Vs is larger than or equal to V2, the current state is that the film type liquid leakage detection belt is connected and liquid leakage occurs;
wherein, V1 ═ R1 × Vcc/(R1+ Rf), V2 ═ R1 × Vcc/(R1+ R2// Rf);
v1 represents a voltage theoretical value collected in the signal collection circuit when the terminal connector is connected and no liquid leakage occurs, V2 represents a voltage theoretical value collected in the signal collection circuit when the terminal connector is connected and liquid leakage occurs, Vs represents a detection voltage collected in the signal collection circuit, R1 is a reference resistor, Rf is a terminal resistor, Vcc is a working voltage provided for the reference resistor and the terminal resistor in the signal collection circuit, and R2 is a resistance value of liquid leakage.
Further, the method also comprises the step of alarming leakage through a communication and alarm circuit when the leakage is judged to occur.
The invention has the beneficial effects that:
(1) the film type leakage detection device provided by the invention can realize that when the leakage detection belt is accessed, the detection circuit can receive resistance feedback to judge the access state of the induction belt.
(2) The tail end connector provided by the invention can be installed and fastened by flat head screws or by gluing, and is simple and convenient.
(3) When the film type liquid leakage detection device provided by the invention has liquid leakage, the detection circuit receives the change of the resistance value, and the liquid leakage is judged according to the change. Whether utilize this connector can effectively help judging the weeping sensor and insert, realize the weeping and detect the function, the practicality is strong.
Drawings
FIG. 1 is a schematic diagram of a tip connector in a side perspective view provided by an embodiment of the present invention;
FIG. 2 is a schematic top perspective view of a tip connector provided by an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a thin film type liquid leakage detection apparatus according to an embodiment of the present invention;
fig. 4 is a schematic flow chart of a leakage detection method according to an embodiment of the present invention.
Wherein, 1-connector box; 2-crimping the cover plate; 3-a rotating shaft; 4-a metal guide rail; 5-metal pin insertion; 6-terminal resistance; 7-a metal pole; 8-a thin film cavity; 9-a resistor accommodating cavity; 10-mounting holes; 11-cover plate mounting threaded holes; 12-cover plate fixing holes; 13-a terminal connector; 14-a film type leakage detection belt; 15-initial connector, 16-detection circuit, 17-signal acquisition circuit, 18-voltage amplification circuit, 19-main control chip and peripheral circuit, and 20-communication and alarm circuit.
Detailed Description
The following embodiments of the present invention are provided by way of specific examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the features in the following embodiments and examples may be combined with each other without conflict.
All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The traditional weeping detection device is because the weeping sensor does not insert and insert but the resistance is the same when not taking place the weeping, is close infinity, and current jointing equipment can't judge whether the weeping sensing area has inserted, also can't judge not have the reason of warning whether the weeping sensor has damaged or because do not take place the weeping, and this can influence the degree of accuracy that the weeping detection system judged the weeping.
In order to solve the above-described technical problems, the following embodiments of a terminal connector, a membrane type leak detection apparatus, and a leak detection method of the present invention are proposed.
Example 1
Referring to fig. 1, as shown in fig. 1, a schematic end connector in a side perspective view according to the present embodiment is provided, where the end connector provided in the present embodiment is applied to a thin film type liquid leakage detection belt, and the connector specifically includes:
the connector box body 1 and set up the metal guide rail 4 in the connector box body 1, the number of metal guide rail 4 is unanimous with the conductive band number on the film formula weeping detects the area, and the central interval between the metal guide rail 4 is unanimous with the conductive band central interval on the film formula weeping detects the area. Referring to fig. 2, fig. 2 is a schematic top perspective view of the tip connector provided in this embodiment, and it can be seen from fig. 2 that the number of the conductive strips on the thin film type liquid leakage detection strip in this embodiment is two, and therefore the number of the metal guide rails 4 is also two.
The lower surface of the metal guide rail 4 is provided with a plurality of metal pins 5, a film cavity 8 for inserting a detection film is reserved between the metal pins 5 and the lower surface of the connector box body 1, the upper surface of the metal guide rail 4 is provided with a metal pole 7, and the metal pole 7 is fixedly connected with a terminal resistor 6. The metal guide rail 4 is provided with a metal pole 7, and the metal pole 7 is welded with a terminal resistor 6.
When the film type liquid leakage detection belt is communicated with the metal contact pin 5, the liquid leakage state detection can be realized by matching with the detection circuit.
As an implementation mode, the end connector that this embodiment provided still includes metal contact pin 5 and compresses tightly the part, the one side that connector box 1 is close to terminal resistance 6 still is provided with crimping apron 2, crimping apron 2 is fixed on connector box 1 through the rotation axis 3 that sets up in connector box side, it holds chamber 9 to be provided with apron fixed part and resistance on crimping apron 2, connector box 1 is inside installs the plane of metal guide 4 and still is equipped with and laps fixed part complex apron installation component, when crimping apron 2 is rotatory to the lower surface and is laminated with metal guide 4 mutually, apron installation component and the fixed crimping apron 2 of apron fixed part cooperation, and compress tightly metal contact pin 5 and the male detection film.
In one embodiment, the cover fixing member is a cover fixing hole 12 into which a screw can be inserted, and the cover mounting member is a cover mounting screw hole 11 for mounting a screw.
As an embodiment, the connector housing 1 of the end connector provided in the present embodiment is further provided with a housing mounting part for fixing the connector housing 1 in a mounted position. Specifically, the connector housing 1 in this embodiment is provided with mounting holes 10 penetrating the upper and lower surfaces for fixing the tip connectors by screw fitting in threaded holes of the mounting positions.
As shown in fig. 2, the mounting holes 10 penetrating the upper and lower surfaces provided in the present embodiment are provided at two positions in total at an end distant from the end where the thin film type leakage detecting tape is attached. The number and position of the mounting holes 10 can be adjusted on the connector housing 1 according to the actual need.
The terminal connector that this embodiment provided can adopt the flat head screw fastening in the installation, also can adopt sticky, and is simple and easy convenient, and when can cooperate detection circuitry to realize that the weeping detects the area and insert, detection circuitry can receive resistance feedback, judges the response area and inserts the state.
Example 2
Referring to fig. 3, a schematic structural diagram of the thin film type liquid leakage detection apparatus provided in this embodiment is shown. The device specifically includes:
in any of the end connectors 13 provided in the previous embodiments, the end connector 13 is connected to the start connector 15 through the membrane leakage detection tape 14, and the start connector 15 is connected to the detection circuit 16.
As an implementation manner, the detection circuit 16 in this embodiment includes a signal acquisition circuit 17, a voltage amplification circuit 18, a main control chip and peripheral circuit 19, and a communication and alarm circuit 20.
Specifically, the signal acquisition circuit 17 includes a reference resistor and a power supply for supplying an operating voltage to the reference resistor and the termination resistor.
If the leakage induction band is not connected, the voltage collected by the signal collecting circuit 17 of the detection circuit 16 is 0V. And when no liquid leakage occurs, the theoretical voltage value acquired in the signal acquisition circuit 17 is R1 Vcc/(R1+ Rf), and is set as V1, so that the detection function of whether the sensor is successfully accessed can be realized, wherein Vcc is the voltage for supplying power to Rf and R1 in the signal acquisition circuit 17, R1 is the resistance value of the reference resistor of the signal acquisition circuit 17, and Rf is the resistance value of the terminal resistor in the terminal connector 13. When the terminal connector 13 is connected, and liquid leakage occurs, the theoretical voltage value acquired by the signal acquisition circuit 17 should be R1 × Vcc/(R1+ R2// Rf), which is set as V2, and this value is the liquid leakage voltage threshold, and R2 is the liquid leakage resistance value, such as water, aviation refrigerating liquid, and the like, and is generally in the order of k Ω to M Ω.
The collected voltage value is amplified by the voltage amplifying circuit 18 and then sent to the main control chip and the peripheral circuit 19, and compared with a voltage threshold value, whether liquid leakage occurs or not can be judged, and the communication and alarm circuit 20 can be used for communicating with an upper computer and giving out liquid leakage alarm.
The collected voltage value is set as Vs, and if Vs is more than or equal to 0 and less than V1, the leakage induction band is not accessed; if V1 is less than or equal to Vs < V2, the liquid leakage induction belt is connected, but liquid leakage does not occur; if Vs is more than or equal to V2, the liquid leakage induction belt is connected, and liquid leakage occurs.
It should be noted that, since the resistance R2 of the measured liquid is different and may change with time, the V2 is allowed to change to a small range in practical judgment.
Referring to fig. 4, as shown in fig. 4, a schematic flow chart of the liquid leakage detection method provided in this embodiment is shown, and the method for detecting a liquid leakage state by using the thin film type liquid leakage detection apparatus specifically includes the following steps:
step S100: the detection voltage acquired in the signal acquisition circuit 17 is acquired.
When the thin film type leakage detection belt 14 is not connected, the detection voltage is 0V, when the thin film type leakage detection belt 14 is connected and no leakage occurs, the detection voltage is R1 Vcc/(R1+ Rf), and when the thin film type leakage detection belt 14 is connected and no leakage occurs, the detection voltage is R1 Vcc/(R1+ R2// Rf);
wherein, R1 is a reference resistor, Rf is a terminal resistor, Vcc is a working voltage provided for the reference resistor and the terminal resistor in the signal acquisition circuit 17, and R2 is a leakage liquid resistance value;
step S200: and amplifying the detection voltage, comparing the amplified detection voltage with a voltage state threshold value, and judging whether liquid leakage occurs at present.
When the film type leakage detection device provided by the embodiment can realize the access of the leakage detection belt, the detection circuit can receive resistance feedback to judge the access state of the induction belt. When the device leaks, the detection circuit receives the resistance value change, and accordingly the occurrence of the leakage is judged. Utilize the end connector can effectively help judging whether the weeping sensor inserts, realize the weeping and detect the function, the practicality is strong.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides an end connector, includes the connector box body, its characterized in that, the connector still including set up in metal guide rail in the connector box body, metal guide rail lower surface is equipped with a plurality of metal contact pins, metal contact pin with leave the film chamber that inserts the detection film between connector box body lower surface, metal guide rail upper surface is provided with the metal utmost point, metal utmost point fixedly connected with terminal resistance.
2. The end connector as claimed in claim 1, wherein a crimping cover plate is further provided on a side of the connector housing adjacent to the terminal resistor, the crimping cover plate is fixed on the connector housing through a rotation shaft provided on a side of the connector housing, a cover plate fixing member and a resistor accommodating cavity are provided on the crimping cover plate, a cover plate mounting member cooperating with the cover plate fixing member is further provided on a plane in which the metal rail is provided inside the connector housing, and when the crimping cover plate is rotated to a position where a lower surface of the crimping cover plate is engaged with the metal rail, the cover plate mounting member cooperates with the cover plate fixing member to fix the crimping cover plate and press the metal pin against the inserted detection film.
3. The end connector of claim 2 wherein said cover plate securing means includes cover plate securing holes into which screws can be inserted and said cover plate mounting means includes cover plate mounting threaded holes for mounting screws.
4. The end connector of claim 1 wherein the connector housing is further provided with a housing mounting feature for securing the connector housing in a mounted position.
5. The end connector of claim 4 wherein said cartridge mounting member includes mounting holes extending through the upper and lower surfaces for engaging threaded holes in the mounting location for securing the end connector by screw mounting.
6. A membrane-based leak detection device, comprising the tip connector of any one of claims 1 to 5, wherein the tip connector is connected to a start connector via a membrane-based leak detection tape, and wherein the start connector is connected to a detection circuit.
7. The thin film type leakage detecting device of claim 6, wherein the detecting circuit comprises a signal collecting circuit, a voltage amplifying circuit, a main control chip, a peripheral circuit and a communication and alarm circuit.
8. The thin film leakage detection device of claim 7 wherein said signal acquisition circuit comprises a reference resistor and a power supply, said power supply for providing operating voltages to said reference resistor and said termination resistor.
9. A liquid leakage detection method based on the thin film type liquid leakage detection device of claim 8, wherein the method comprises:
acquiring detection voltage acquired in a signal acquisition circuit;
comparing the amplified detection voltage with a voltage state threshold value, and judging whether liquid leakage occurs at present, wherein the method specifically comprises the following steps:
when Vs is more than or equal to 0 and less than V1, the current state is that the film type leakage detection belt is not connected;
when the V1 is less than or equal to Vs < V2, the current state is that the film type liquid leakage detection belt is connected and liquid leakage does not occur;
when Vs is larger than or equal to V2, the current state is that the film type liquid leakage detection belt is connected and liquid leakage occurs;
wherein, V1 ═ R1 × Vcc/(R1+ Rf), V2 ═ R1 × Vcc/(R1+ R2// Rf);
v1 represents the voltage theoretical value that gathers in the signal acquisition circuit when the end connector is accessed and no weeping takes place, V2 represents the voltage theoretical value that gathers in the signal acquisition circuit when the end connector is accessed and weeping takes place, Vs represents the detection voltage that gathers in the signal acquisition circuit, R1 is the reference resistor, Rf is the terminal resistor, Vcc is the operating voltage that provides for reference resistor and terminal resistor in the signal acquisition circuit, R2 is weeping liquid resistance.
10. The method for detecting a leak according to claim 9, further comprising, when it is determined that a leak has occurred, performing a leak alarm via a communication and alarm circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210355392.8A CN114935434A (en) | 2022-04-06 | 2022-04-06 | End connector, film type leakage detection device and leakage detection method |
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| CN202210355392.8A CN114935434A (en) | 2022-04-06 | 2022-04-06 | End connector, film type leakage detection device and leakage detection method |
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Application publication date: 20220823 |