CN102829939B - Circuit system, engineering machine and water inlet identification method - Google Patents
Circuit system, engineering machine and water inlet identification method Download PDFInfo
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- 238000001514 detection method Methods 0.000 claims abstract description 16
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Abstract
The invention provides a circuit system which comprises a sensor, a plug connector, a detection unit and a controller, wherein the sensor is connected to the controller through the plug connector; the controller is used for judging that the water inflow at the plug connector exceeds the standard under the condition that the numerical value of the electric signal is in the preset numerical value range, alarming and/or limiting actions, and preventing accidents. The invention also provides the engineering machinery and a water inlet identification method. The technical scheme provided by the invention is simple to operate, can timely find out signal distortion caused by water inflow, and ensures the operation safety.
Description
Technical Field
The invention relates to the field of engineering machinery, in particular to a circuit system, engineering machinery comprising the circuit system and a water inlet identification method.
Background
At present, the working environment of the engineering machinery is severe, the engineering machinery is often exposed in dust and water vapor, and the long-time continuous work is easy to cause the aging of a circuit and the equipment failure; in addition, many customers often select high-pressure squirt to wash equipment, make whole car pencil, plug connector, cavity form ponding more easily, heavy then short circuit at once, light then cause the signal unstable or the false signal appears when equipment reworks, especially when the indication signal that relates to safety appears the false phenomenon, very easily causes the emergence of accident, and the inside modes such as rubber seal, mechanical seal of adopting of present trade prevent that spare parts such as electric pencil, plug connector from intaking more.
In the related art, there is a multi-purpose intelligent security, which can detect signal changes on line, and send out alarm and related action processing. The intelligent security is mainly used in the fields of safe deposit boxes, automobile theft prevention and the like. In the document with patent number "CN 200310115176", more relevant information can also be seen.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a circuit system which can detect the water inlet condition of a plug-in unit in a line in real time, and give an alarm or limit actions according to the water inlet condition so as to prevent accidents.
In view of this, the present invention provides a circuit system, including a sensor, a connector, and a controller, where the sensor is connected to the controller through the connector, and the circuit system further includes a detection unit, where the detection unit is configured to detect an electrical signal at the connector and/or the controller, and send the detected electrical signal to the controller; and the controller is used for judging that the water inflow at the plug connector exceeds the standard and giving an alarm and/or limiting actions under the condition that the numerical value of the electric signal is in a preset numerical value range.
The scheme can detect the electric signals of the plug connector and/or the controller in real time, compares the electric signals with corresponding electric signals under normal working conditions, can remind a user whether water enters the detected part or not in time and the water inflow of the detected part, and can alarm and/or limit actions after judging that the water inflow of the detected part exceeds the standard so as to prevent accidents.
In the above technical solution, preferably, the controller further determines a priority of the circuit system, and performs alarm and action limitation when the priority of the circuit system is a first level and the value of the electrical signal is in a preset value range;
and under the condition that the priority of the circuit system is the second level and the numerical value of the electric signal is in a preset numerical value range, the controller gives an alarm or limits actions.
According to the technical scheme, after water enters the plug connector, targeted treatment is carried out according to the priority of the circuit system, so that loss caused by fault shutdown of an unimportant circuit system can be avoided, and the production continuity is improved as much as possible under the condition that the production safety is ensured.
In the above technical solution, preferably, when the priority of the circuit system is the second level, the controller further determines a water inflow degree at the plug connector, and the controller gives an alarm when the value of the electrical signal is within a first preset value range; and under the condition that the value of the electric signal is in a second preset value range, the controller limits the action.
Therefore, corresponding action processing can be carried out according to the water inlet degree of the plug connector, and more accurate control is realized.
Preferably, the electrical signal is a resistance value of the plug connector.
According to the technical scheme, if the plug connector in the circuit system is water-fed, the resistance value of the plug connector can be changed, the detection unit acquires the resistance value of the plug connector and sends the resistance value to the controller, and the controller alarms and/or limits actions after judging that the water inlet quantity of the plug connector exceeds the standard.
Preferably, the electrical signal is a voltage value at two ends of the plug connector, a voltage value received by the controller, or a current value passing through the plug connector and the controller.
In the technical scheme, if the plug connector in the circuit system is in water inlet, the current value in the circuit system, the voltage values at two ends of the plug connector or the voltage value received by the controller can be changed along with the water inlet, the detection unit acquires the electric signals at the plug connector and/or the controller and sends the electric signals to the controller, and the controller alarms and/or limits actions after judging that the water inlet amount at the plug connector exceeds the standard, so that accidents are prevented.
In addition, the invention also provides engineering machinery comprising the circuit system in the technical scheme. Obviously, the engineering machine has all the beneficial effects described above, and details are not described herein.
In addition, the invention also provides a signal protection method, which comprises the following steps:
step 1, detecting an electric signal at the plug connector and/or the controller;
and 2, under the condition that the numerical value of the electric signal is in a preset numerical value range, judging that the water inflow at the plug connector exceeds the standard, and alarming and/or limiting actions.
The technical scheme provided by the invention can detect the electric signal at the connector and/or the controller in real time, compare the electric signal with the corresponding electric signal under the normal working condition, judge whether the water inflow of the connector exceeds the standard or not, and alarm and/or action limitation are/is realized after the water inflow of the part to be detected exceeds the standard, so that accidents are prevented.
Preferably, the controller further determines a priority of the circuit system, and performs alarm and action limitation when the priority of the circuit system is a first level and the value of the electrical signal is within a preset value range;
and under the condition that the priority of the circuit system is the second level and the numerical value of the electric signal is in a preset numerical value range, the controller gives an alarm or acts.
After the water enters the plug connector, the water is processed in a targeted manner according to the priority of the circuit system in the whole equipment, so that the loss caused by the fault shutdown of the non-important circuit system can be avoided, and the production continuity is improved as much as possible under the condition of ensuring the production safety.
Preferably, when the priority of the circuit system is the second level, the controller further determines the water inlet degree of the plug connector, and the controller gives an alarm when the value of the electric signal is within a first preset value range; and under the condition that the value of the electric signal is in a second preset value range, the controller limits the action.
Therefore, corresponding action processing can be carried out according to the water inlet degree of the plug connector, and more accurate control is realized.
Preferably, the electrical signal is a resistance value of the connector, a voltage value at two ends of the connector, a voltage value received by the controller, or a current value passing through the connector and the controller.
In the technical scheme, if the plug connector in the circuit system is in water, the resistance value of the plug connector, the current value in the circuit system, the voltage values at two ends of the plug connector or the voltage value received by the controller can be changed along with the water inlet, the detection unit acquires the electric signal at the plug connector and/or the controller and sends the electric signal to the controller, and the controller alarms and/or limits actions after judging that the water inlet at the plug connector exceeds the standard, so that accidents are prevented.
In summary, the circuit system and the signal protection method provided by the invention can remind a user of water inflow and the water inflow in a line in time, can alarm and/or limit actions, prevent accidents, have simple structure and reliable performance, remarkably improve the construction safety and reduce the construction risk.
Drawings
FIG. 1 is a schematic diagram of an embodiment of a circuit system according to the present invention;
FIG. 2 is a block diagram of the architecture shown in FIG. 1;
FIG. 3 is a circuit schematic of the configuration shown in FIG. 1;
fig. 4 is a schematic structural diagram of an embodiment of a signal protection method according to the present invention.
The correspondence between reference numerals and component names in fig. 1 to 4 is:
100 circuit system, 1 sensor, 2 plug connectors, 3 controller and 4 detection units.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
As shown in fig. 1 to 3, the present invention provides a circuit system 100, including a sensor 1, a plug 2 and a controller 3, wherein the sensor 1 is connected to the controller 3 through the plug 2, the circuit system 100 further includes a detection unit 4, and the detection unit 4 is configured to detect an electrical signal at the plug 2 and/or at the controller 3, and send the detected electrical signal to the controller 3; and the controller 3 is used for judging that the water inflow at the plug connector 2 exceeds the standard and giving an alarm and/or limiting actions under the condition that the numerical value of the electric signal is in a preset numerical range.
The scheme can detect the electric signals of the plug connector and/or the controller in real time, compares the electric signals with corresponding electric signals under normal working conditions, can remind a user whether water enters the detected part or not in time and the water inflow of the detected part, and can alarm and/or limit actions after judging that the water inflow of the detected part exceeds the standard so as to prevent accidents.
As shown in fig. 2, the controller further determines the priority of the circuit system, and performs alarm and action limitation when the priority of the circuit system is the first level and the value of the electrical signal is in a preset value range;
and under the condition that the priority of the circuit system is the second level and the numerical value of the electric signal is in a preset numerical value range, the controller gives an alarm or limits actions.
According to the technical scheme, after water enters the plug connector, targeted treatment is carried out according to the priority of the circuit system in the whole equipment, the loss caused by fault shutdown of the non-important circuit system can be avoided, and the production continuity is improved as much as possible under the condition that the production safety is ensured.
In the above technical solution, preferably, when the priority of the circuit system is the second level, the controller 3 further determines the water inflow degree of the plug 2, and the controller 3 gives an alarm when the value of the electrical signal is within a first preset value range; and when the value of the electric signal is in a second preset value range, the controller 3 limits the action.
Therefore, corresponding action processing can be carried out according to the water inlet degree of the plug connector, and more accurate control is realized.
Preferably, the electrical signal is a resistance value of the plug-in unit 2.
In the technical scheme, if the plug connector in the circuit system is water-fed, the resistance value of the plug connector can be changed, the detection unit acquires the resistance value of the plug connector and sends the resistance value to the controller, and the controller alarms and/or limits actions after judging that the water inlet quantity of the plug connector exceeds the standard, so that accidents are prevented.
Preferably, the electrical signal is a voltage value at two ends of the plug connector 2 or a voltage value received by the controller 3.
In the technical scheme, if the plug connector in the circuit system is in water supply, the voltage values at two ends of the plug connector in the circuit system or the voltage values received by the controller can be changed, the detection unit collects the voltage values at the plug connector and/or the controller and sends the voltage values to the controller, and the controller alarms and/or limits actions after judging that the water supply at the plug connector exceeds the standard, so that accidents are prevented.
Preferably, the electrical signal is a current value passing through the plug 2 and the controller 3.
In the technical scheme, if the plug connector in the circuit system is in water inlet, the current value in the circuit system can be changed along with the plug connector, the detection unit acquires the current value passing through the plug connector and the controller and sends the current value to the controller, and the controller alarms and/or limits actions after judging that the water inlet quantity at the plug connector exceeds the standard, so that the accidents are prevented.
In addition, the invention also provides engineering machinery comprising the circuit system in any technical scheme.
Those skilled in the art will appreciate that in actual operation, the controller may have a variety of control accuracies, etc., and those skilled in the art may select the desired controller according to the specific situation.
As shown in fig. 4, the present invention further provides a signal protection method, which includes the following steps:
step 101, detecting an electric signal at the plug connector 2 and/or the controller 3;
and 103, under the condition that the numerical value of the electric signal is in a preset numerical value range, judging that the water inflow at the plug connector 2 exceeds the standard, and alarming and/or limiting actions.
According to the technical scheme, the electric signals at the plug connector and/or the controller can be detected in real time, the electric signals are compared with corresponding electric signals under normal working conditions, whether the water inflow of the plug connector exceeds the standard or not is judged, and after the water inflow of the detected part exceeds the standard, alarming and/or action limiting are achieved, and accidents are prevented.
Preferably, the controller 3 further determines a priority of the circuit system, and the controller 3 performs alarm and action limitation when the priority of the circuit system is a first level and the value of the electrical signal is in a preset value range;
and under the condition that the priority of the circuit system is the second level and the numerical value of the electric signal is in a preset numerical value range, the controller 3 gives an alarm or limits actions.
After the water enters the plug connector, the water is processed in a targeted manner according to the priority of the circuit system in the whole equipment, so that the loss caused by the fault shutdown of the non-important circuit system can be avoided, and the production continuity is improved as much as possible under the condition of ensuring the production safety.
In the above technical solution, preferably, when the priority of the circuit system is the second level, the controller 3 further determines the water inflow degree of the plug 2, and the controller 3 gives an alarm when the value of the electrical signal is within a first preset value range; and when the value of the electric signal is in a second preset value range, the controller 3 limits the action.
Therefore, corresponding action processing can be carried out according to the water inlet degree of the plug connector, and more accurate control is realized.
Preferably, the electrical signal is a resistance value of the plug-in unit 2.
In the technical scheme, if the plug connector in the circuit system is water-fed, the resistance value of the plug connector can be changed, the detection unit acquires the resistance value of the plug connector and sends the resistance value to the controller, and the controller alarms and/or limits actions after judging that the water inlet quantity of the plug connector exceeds the standard, so that accidents are prevented.
Preferably, the electrical signal is a voltage value at two ends of the connector 2, a voltage value received by the controller 3, or a current value passing through the connector 2 and the controller 3.
In the technical scheme, if the plug connector in the circuit system is in water inlet, the current value in the circuit system, the voltage values at two ends of the plug connector or the voltage value received by the controller can be changed along with the water inlet, the detection unit acquires the electric signals at the plug connector and/or the controller and sends the electric signals to the controller, and the controller alarms and/or limits actions after judging that the water inlet amount at the plug connector exceeds the standard, so that accidents are prevented.
The following are experimental data performed by the inventors according to the technical solution of the present invention.
First, summary of the experiments
The product name is as follows: three-core plug connector of rotary lock proximity switch
Second, purpose of experiment
The locking signal is output to the host controller due to the fact that the plug connector mistakenly sends a signal when water enters, whether the water enters the input signal is judged on software in order to prevent the phenomenon, and if the water enters the input signal, an alarm signal is sent to the host controller.
Third, test protocol
Test items: and identifying plug connector water inlet software.
Test conditions are as follows: the three-core plug connector socket and the plug of the twist lock proximity switch are separated, and tap water or rainwater is enabled to dip into the socket.
The test principle is as follows: the voltage signal of the AI channel is multiplexed through the DI channel to identify the error signal.
Error signal range: 0.5-14.6V (threshold voltage) or slightly higher than 14.6V.
The error signal discrimination mechanism comprises: the analog signal value of the AI channel is greater than 99 and less than 3890, and the corresponding voltage value of the AI channel is greater than 0.5V and less than 19V.
And (3) controlling strategy after error signal identification: the controller sends an alarm signal of the water inlet of the plug connector to the host controller, the host alarms, and the operation handle controls the corresponding action of the machine to be invalid (the safe bypass is effectively opened) so as to limit the action.
Fourthly, testing steps
1. The machine is electrified to start the machine, and the socket and the plug of the proximity switch three-core plug connector are separated;
2. directly filling water in the water pipe into the three-core socket;
3. checking whether a display screen of a cab has a prompt of 'machine plug connector water inlet alarm';
4. performing a machine spin-locking action under the condition of an alarm prompt, checking whether the machine can perform spin-locking operation or not, and recording the actual condition;
5. running the machine under the condition of an alarm prompt, checking whether the machine can perform corresponding actions or not, and recording the actual condition;
6. and draining water from the plug connector container after all verification actions are finished, checking whether the alarm of the display is eliminated or not after water drops are wiped, judging whether the machine action is normal or not, and recording the actual condition.
Fifthly, analyzing test results and data
The machine delays for three seconds to output an alarm signal to the host controller after detecting a water inlet error signal, and the host controller delays for two seconds to output an alarm to the display after receiving the alarm signal;
after the water inlet software of the plug connector of the proximity switch of the spin lock is identified, corresponding spin lock operation is carried out on the machine, the machine cannot be spin-locked, action limitation is carried out, and the protection effect of safety protection can be achieved through the water inlet software identification;
when water is drained from the plug connector socket, the alarm is released after the machine cannot detect a water inlet error signal, and the 'machine plug connector water inlet alarm' which cannot receive the error signal is automatically eliminated by the host controller.
Under the conditions that the models of the plug connectors are the same, the water inflow at the plug connectors is the same, and the water quality is different, the AI channel signal value multiplexed by the monitoring spin lock signal DI (switch input) point of the slave machine controller is shown in the following table I.
The range of the water quality entering the plug connector can be identified through the AI channel analog quantity signal and the voltage value multiplexed by the DI channel, whether the water quality belongs to the normal signal or not is judged, and if the water quality belongs to the error signal, the action of the machine is limited, so that the safety protection effect is achieved.
As shown in fig. 1 and 3, the influence of the water supply on the electric signal is illustrated by an example in which the voltage of the power supply E is 24V. And under the condition of neglecting the equipment precision and the system error, when the voltage value received by the controller changes between 0V and 0.5V due to water inflow in the plug connector, the circuit system is not influenced and is not processed.
According to the test results, when the water quality is rainwater, the preset value range can be set according to a second table and a third table, the second table is an embodiment of setting the preset value range for the circuit system with the second priority, and the third table is an embodiment of setting the preset value range for the circuit system with the first priority.
In fig. 3, the plug-in unit is composed of a plug and a socket, the switch K is a sensor, and when the switch is closed, since the plug-in unit functions as a wire, the resistance thereof can be ignored, and thus the voltage received by the controller is the power voltage 24V;
after the plug connector is subjected to water inlet, the resistance at the plug connector is increased, a part of voltage is divided, and the voltage received by the controller is changed between 0V and 24V.
Watch 1
| Type of water quality | Analog signal value of AI channel | Corresponding voltage value of AI channel |
| Tap water | 600～800 | 2.93～3.90 |
| Rain water | 960～1100 | 4.68～5.37 |
| Salt water | 3600～4000 | 17.58～19.53 |
| Without water inflow | 0～1 | 0 |
Watch two
| Plug-in connector water inflow V (ml) | Voltage value received by controller U (V) | Executing commands |
| 1＜V≤2 | 20≤U≤23.5 | Alarm device |
| 2＜V | 0＜U＜20 | Motion restriction |
Watch III
| Plug-in connector water inflow V (ml) | Voltage value received by controller U (V) | Executing commands |
| 1＜V | 0＜U＜23.5 | Alarm and action restriction |
If the voltage value actually received by the controller is 23.6V, the voltage value is in an error range no matter how the priority of the circuit system in the whole machine is, the water inflow in the plug connector has no influence on the circuit system, and the circuit system does not process the water inflow.
When the voltage value actually received by the controller is 21V and exceeds the error range, the water inflow in the plug connector interferes the circuit system, and if the priority of the circuit system in the whole machine is the second level, the value of the voltage value is in the first preset value range, the circuit system performs alarm processing; if the priority of the circuit system in the whole machine is the first level, the circuit system gives an alarm and limits actions, thereby achieving the purpose of safety protection.
When the voltage value actually received by the controller is 19V and exceeds the error range, the water inflow in the plug connector generates serious interference on a circuit system, and if the priority of the circuit system in the whole machine is the second level, the value of the voltage value is in the second preset value range, and the circuit system performs action limitation; if the priority of the circuit system in the whole machine is the first level, the circuit system gives an alarm and limits actions, thereby achieving the purpose of safety protection.
In summary, the circuit system and the signal protection method provided by the invention can remind a user of water inflow and water inflow in a line in time, can alarm and/or limit actions, prevent accidents, have simple structure and reliable performance, remarkably improve operation safety and reduce operation risks.
It should be understood by those skilled in the art that in actual operation, there are many factors affecting the electrical signal in the circuit system, such as the type of plug-in, water quality and water inflow, and those skilled in the art can form the required preset value range according to the specific situation.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A circuit system comprising a sensor (1), a plug connector (2) and a controller (3), the sensor (1) being connected to the controller (3) via the plug connector (2), characterized in that the circuit system further comprises a detection unit (4),
the detection unit (4) is used for detecting an electric signal at the plug connector (2) and/or the controller (3) and sending the detected electric signal to the controller (3);
the controller (3) is used for judging that the water inflow at the plug connector (2) exceeds the standard and giving an alarm and/or limiting actions under the condition that the numerical value of the electric signal is in a preset numerical value range; wherein,
the controller (3) also judges the priority of the circuit system, and under the condition that the priority of the circuit system is the first level and the numerical value of the electric signal is in a preset numerical value range, the controller (3) gives an alarm and limits actions;
and under the condition that the priority of the circuit system is the second level and the numerical value of the electric signal is in a preset numerical value range, the controller (3) gives an alarm or limits actions.
2. The circuit system according to claim 1, wherein the controller (3) further determines a degree of water inflow at the plug (2) when the priority of the circuit system is a second level,
under the condition that the value of the electric signal is in a first preset value range, the controller (3) gives an alarm;
and under the condition that the value of the electric signal is in a second preset value range, the controller (3) limits the action.
3. The circuit system according to claim 2, characterized in that the electrical signal is the resistance value of the plug (2).
4. The circuit system according to claim 2, characterized in that the electrical signal is a voltage value across the plug (2), a voltage value received by the controller (3) or a current value through the plug (2) and the controller (3).
5. A working machine, characterized in that it comprises a circuit system according to any one of claims 1-4.
6. A water inlet identification method is characterized by comprising the following steps:
step 1, detecting an electric signal at a connector (2) and/or a controller (3);
step 2, under the condition that the numerical value of the electric signal is in a preset numerical value range, judging that the water inflow at the plug connector exceeds the standard, and alarming and/or limiting actions;
wherein, the step 2 specifically comprises the following steps: the controller (3) judges the priority of a circuit system, and under the condition that the priority of the circuit system is the first level and the numerical value of the electric signal is in a preset numerical value range, the controller (3) gives an alarm and limits actions; and under the condition that the priority of the circuit system is the second level and the numerical value of the electric signal is in a preset numerical value range, the controller (3) gives an alarm or limits actions.
7. The water inflow identification method according to claim 6, wherein the controller (3) further determines the degree of water inflow at the plug (2) when the priority of the circuitry is a second level,
under the condition that the value of the electric signal is in a first preset value range, the controller (3) gives an alarm;
and under the condition that the value of the electric signal is in a second preset value range, the controller (3) limits the action.
8. The water inlet identification method according to claim 7, wherein the electrical signal is a resistance value of the plug (2), a voltage value across the plug (2), a voltage value received by the controller (3), or a current value passing through the plug (2) and the controller (3).
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| CN201210348925.6A CN102829939B (en) | 2012-09-19 | 2012-09-19 | Circuit system, engineering machine and water inlet identification method |
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| CN107992143B (en) * | 2018-01-23 | 2024-03-01 | 江苏徐工国重实验室科技有限公司 | Multiplexing acquisition port circuit, controller, analog input acquisition method and system |
| US10837934B2 (en) * | 2018-03-28 | 2020-11-17 | Samsung Electronics Co., Ltd. | Water detection circuit, electronic device including the same, and water detection method |
| CN109580135A (en) * | 2018-12-06 | 2019-04-05 | 英业达科技有限公司 | Leakage detection plate and leakage monitor system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20101526U1 (en) * | 2001-01-30 | 2001-08-02 | Fedor Ulisch GmbH, 42855 Remscheid | Test plugs for density tests and leakage quantity measurements on gas-carrying pipes in a pipe network |
| DE10026968A1 (en) * | 2000-05-31 | 2001-12-06 | Volkswagen Ag | Test apparatus for waterproof connectors for motor vehicle control equipment has moisture-sensitive contacts connected to contact elements of plug connector |
| CN101210855A (en) * | 2006-12-27 | 2008-07-02 | 中芯国际集成电路制造(上海)有限公司 | Multipath fluid leakage detector |
| CN201892611U (en) * | 2010-12-02 | 2011-07-06 | 广州文冲船厂有限责任公司 | Water leakage alarming and detecting system of underwater cable |
| CN202002781U (en) * | 2011-03-17 | 2011-10-05 | 广东省输变电工程公司 | Sound and light alarm device for insulation oil flow cut protecting and monitoring |
| CN202092839U (en) * | 2011-05-25 | 2011-12-28 | 东莞市兴煌电子科技有限公司 | Waterproof detection device for circuit board |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8078412B2 (en) * | 2009-04-29 | 2011-12-13 | Petrotechnologies, Inc. | Method to determine connector leaks during testing |
-
2012
- 2012-09-19 CN CN201210348925.6A patent/CN102829939B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10026968A1 (en) * | 2000-05-31 | 2001-12-06 | Volkswagen Ag | Test apparatus for waterproof connectors for motor vehicle control equipment has moisture-sensitive contacts connected to contact elements of plug connector |
| DE20101526U1 (en) * | 2001-01-30 | 2001-08-02 | Fedor Ulisch GmbH, 42855 Remscheid | Test plugs for density tests and leakage quantity measurements on gas-carrying pipes in a pipe network |
| CN101210855A (en) * | 2006-12-27 | 2008-07-02 | 中芯国际集成电路制造(上海)有限公司 | Multipath fluid leakage detector |
| CN201892611U (en) * | 2010-12-02 | 2011-07-06 | 广州文冲船厂有限责任公司 | Water leakage alarming and detecting system of underwater cable |
| CN202002781U (en) * | 2011-03-17 | 2011-10-05 | 广东省输变电工程公司 | Sound and light alarm device for insulation oil flow cut protecting and monitoring |
| CN202092839U (en) * | 2011-05-25 | 2011-12-28 | 东莞市兴煌电子科技有限公司 | Waterproof detection device for circuit board |
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