KR101311586B1 - The Test Device for water leak and controller - Google Patents

Abstract

The present invention can be carried out at the same time to check the leakage of the storage tank built in the refrigerator or water purifier and the various functions of the electrical equipment, the inspection process is simplified, the defective storage tank and electrical equipment without going through each inspection process during assembly Whether or not it can be easily determined at all.

Description

Leak and electric field check device {The Test Device for water leak and controller}

The present invention relates to a check device that can check the leakage of the storage tank and the operation state of the electrical equipment, so that it can be carried out at the same time to check the leakage of the storage tank built in the refrigerator or water purifier and the various functions of the electrical equipment. When assembling, it is possible to easily determine whether the storage tank and the electrical parts are defective without having to go through each inspection process and simplify the inspection process.

Generally, a refrigerator or a water purifier has a storage tank for storing water and an electric device, which is an electric device for controlling water supply of the water contained in the storage tank, and conventionally, each of the components including the electronic device and the storage tank is individually. Although it was shipped and assembled by a specific company, in recent years, the storage tank and the electric equipment were formed as a single assembly for the purpose of streamlining the production process, and the specific company can simply assemble the assembly in the assembly process of a refrigerator or a water purifier. It was.

In addition, these storage tanks and electrical parts should be inspected for defects so as not to cause mechanical defects when assembled into refrigerators or water purifiers.In the case of storage tanks, a certain pressure is applied to the inside to check for leaks. In the case of the electric parts, the voltage type (110V / 220V), the operation test of the solenoid valve, the LED lighting, etc. are individually inspected so that the entire assembly is not defective.

However, this problem is not only very cumbersome to check each function individually, but also has to be assembled after each function test, and workability is reduced. There was no inconvenience that the refrigerator or water purifier, etc. are shipped in a bad state or have to undergo a separate test once more.

Particularly, in the case of the water storage tank, when a worker soaks in water and pressurizes the water storage tank, a water drop test is used to determine whether a leak occurs according to whether or not air bubbles are generated. There is a problem, and the inspection speed is very slow.

In addition, such a submersion test is a method of immersing in water, so it is not possible to carry out when the electric parts are assembled. Therefore, the electric parts must be assembled after the submersion test, but the water tank after the submersion test is left with water on the surface. It cannot be assembled immediately and must be assembled after a certain period of drying process, so workability and productivity are greatly reduced.

Therefore, the present invention enables the user to check several functions in one unit by using a single device without having to individually test the functions, thereby simplifying the inspection process and improving productivity. It is intended to be made in the combined state, so that the defect in the assembly process does not occur.

In addition, in the event of a defect in the component or malfunction in the inspection, the worker can easily determine the damage of the corresponding defective part or the connection.

Therefore, in the present invention, the inlet hose and the inlet hose of the assembled water storage tank are connected, and the solenoid valve and the sensor for detecting the flow of fluid are also connected to the power connector of the LED expressing the operation facts,
It is characterized by the leak inspection and electric field checking device that checks the leakage occurrence of the storage tank according to the pressure change and the malfunction of the electric field according to the resistance value through the leak inspection unit and the control device and expresses the test result on the display device.

That is, the present invention comprises a plurality of nozzle holes and the connection connector is connected to the cooling hose or the heating hose according to the setting, including the inlet hose and outlet hose of the reservoir tank, and the sensor for detecting the flow of the solenoid valve and fluid, and A connection part formed to be connected to a power connector of an LED that displays an operation of the solenoid valve or a sensor;

While the hose and connector are connected to the connection part, the type and number of the built-in solenoid valve are set and the operation is instructed, and the configuration of the control valve and the operation check result of the solenoid valve, the LED, and the sensor are displayed on the screen. The monitor unit,

The pressure and time to be pressurized are set, and the fluid is applied to the storage tank through the inlet hose and the outlet hose while the solenoid valve is stopped or the solenoid valve is opened to maintain the pressure higher than the set value after calibration. Leak inspection unit that checks whether the leak is,

By measuring the resistance value applied to each solenoid valve and the LED according to the type and number of the solenoid valve through the connecting portion to determine whether there is a failure, and by operating the leak inspection unit to determine the leakage by checking the pressure change, It characterized in that it comprises a control device for the quality control by listing the measured value and the determination result of the solenoid valve and the LED and the sensor in order of identification number.

In addition, the leak inspection unit of the present invention sets the minimum pressure value and the maximum pressure value, and when the maximum pressure value is reached, and after the stabilization time of the water storage tank, by applying the instantaneous pressure for a predetermined time to measure the changed pressure value Characterized in that it is to check whether the leak.

Therefore, the present invention can easily check the defective part while the inspection is made in the assembled state of the water tank and the electrical equipment, thereby minimizing physical and temporal loss in the process, and precisely inspecting each function to determine the defective rate. Significantly reduced, since the assembly process is not necessary after the inspection process is finished, it is possible to easily identify the defect of the assembly.

In addition, quality control can be easily carried out by making a database of measured values and judgment results when inspecting the water purifier or refrigerator in the assembled state, thereby improving the quality and reliability of the product to secure competitiveness in the product. You can do it.

1 is a front view of a leak and electric field inspection device according to an embodiment of the present invention.
Figure 2 is a block diagram of a leak and electric field inspection device according to an embodiment of the present invention.
3 is a monitor screen of the leak and electric field check device according to an embodiment of the present invention.
4 is a leak inspection unit of the leak and the electric field inspection device according to an embodiment of the present invention.
5 is a control device of the leak and the electric field inspection device according to an embodiment of the present invention.
6 is a display screen of the leak and electric field inspection device according to an embodiment of the present invention.
Figure 7 is a perspective view of the connection portion of the leak and electric field inspection device according to an embodiment of the present invention.
Figure 8 is a state of use of the leak and electric field inspection device according to an embodiment of the present invention.

Hereinafter, specific details for carrying out the present invention will be described in detail with reference to the accompanying drawings.

First, Figure 1 is a front view showing the overall appearance of the leak and electric field check device according to an embodiment of the present invention, Figure 2 is a block diagram of the leak and electric field check device according to an embodiment of the present invention, as shown It is divided into four layers and zones, and the lower layer has a connection part 10 connected to the hoses 2 and 3 and the connector of the water purifier 1 assembled for each channel. In addition, the power supply and operation panel 50, the leak inspection unit 30, and the control device 40 are installed in the middle layer, and the configuration of the control valve and the type and number of the solenoid valve of the water purifier on the screen for each channel. A plurality of monitors are provided to display the operation check results of the LED and the sensor so that the monitor unit 20 displays the operation state of the electrical unit along with the fact that the water storage tank leaks.

Herein, the electrical part is collectively referred to as an electric appliance built in a water purifier or a refrigerator connected to a connector. In the present invention, a solenoid valve, a flow sensor, and an LED, which are basically installed inside the water purifier, are not limited thereto. Do not.

In this case, the water purifier 1 is not limited to a specific product, but includes a water storage tank and a filter, and is a device controlled by an electric component, and a filter, a storage tank, a solenoid valve, a hose, and the like are assembled in a module. Or device.

In addition, as shown in FIG. 3, the connection part 10 includes a plurality of nozzle holes 11 and a connection connector 14, and the connection connector 14 formed at one side includes a built-in electric component part. The power cable 15, which has a connector of a solenoid valve, a connector of a sensor that detects the flow of fluid, and an LED connector that displays an operation signal as an optical signal, is inserted into and connected to the connection connector 14. . In this case, voltages dropped to different voltages are applied to the sensor and the LED connector, and are typically applied to the sensor and the LED at voltages of 5V and 12V, respectively.

In addition, the inlet hose 2 and outlet hose 3 of the water storage tank, as well as the cooling hose and the heating hose, are inserted into the nozzle hole 11 formed on the other side and fitted. At this time, the pedestal 12 is formed around the nozzle hole 11 so that the hoses are easily seated and fitted into the nozzle hole, and in particular, the upper end is provided with a pressing table 13 that moves up and down. During the inspection, the pressure bar 13 is lowered to fix the hose inserted in the nozzle hole. At this time, the pressing table 13 may wrap the edge of the nozzle hole while being in close contact with the pedestal according to the embodiment.

And a plurality of buttons 16 are formed on the upper portion of the connection portion 10, wherein the button is formed with a Start button and a Stop button for instructing the start and end of the leak test unit, to check a plurality of water purifier In order to form a multilayer, at least one same nozzle hole and a connector are formed at the bottom, and the SI / MU button for selecting whether to inspect only one water purifier inserted in a specific layer or a water purifier inserted in all layers; When selecting a single layer, it consists of an H / L button to select the water purifier connected to the upper or lower layer.

In addition, the monitor unit 20 displays the configuration of the control valve, including the solenoid valve and the LED and the sensor configuration built into the water purifier in a state where the hose and the connector are connected to the connection unit.

That is, as shown in Figure 4, the monitor unit 20 is displayed on the one side of the connection portion 21 of the control valve for controlling the fluid flowing into or out of the water storage tank of the water purifier, the other side is displayed In addition to the configuration of the solenoid valve, LED and wheel sensor, the values acquired for each valve, LED and wheel sensor are displayed. At this time, the control valve is a control valve for controlling the pressure when the fluid is injected, a control valve for injecting the fluid into the liquor tank, and a control valve for discharging the fluid filling the reservoir tank to the outside.

In addition, the monitor unit 20 is configured as a touch screen and has a button for selecting whether the solenoid valve is dedicated to 110V or the solenoid valve for 220V. Three or more buttons can be set, and an LED and a flow sensor button for selecting whether to test with the solenoid valve are implemented. In the lower part, there is an AUTO button for selecting whether to test the selected item by automatic test, a MANUAL button for setting whether to manually select the item for testing, and respective START and STOP buttons for starting and forcing the test. It is implemented.

In addition, the leakage inspection unit 30, as shown in Figure 5, the front panel is formed with a control panel for setting the pressure and time to press the pressure for each channel and a display unit for displaying the set values or the value confirmed in the test, It consists of a plurality of control valves and cylinders inside to check for leaks by applying fluid to each channel and to check for defects by transferring the changed pressure value to the control device. Here, the control valve comprises a control valve for regulating the pressure, and a control valve for inflow into the water purifier or vice versa. In this case, the control valve may be made together with the control device according to the embodiment.

In addition, the leak inspection unit 30 is to check whether the leakage by applying the fluid to the storage tank through the inlet hose and the outlet hose in the state that the solenoid valve is stopped or the solenoid valve is open.

Here, the fluid flowing into the reservoir tank is introduced through the inlet hose and the outlet hose, and the fluid is injected into the opposite outlet hose while the inlet hose is blocked according to the control result, or the inlet hose is open and the outlet hose is closed. Injecting fluid into the inlet hose may be tested by filling the reservoir tank.

In addition, the leak inspection unit 30 is configured to set the maximum pressure value and the minimum pressure value during the test, and after the calibration (Calibration) reflects the stabilizing time of the water storage tank, the instantaneous pressure is applied to check the changed pressure. At this time, the leak inspection unit is implemented by reflecting the high limit loss value.

That is, the water leakage check unit checks the pressure of the water storage tank, injects fluid into the inside and fills it up, and when there is no change in the pressure value for a predetermined time by applying instantaneous pressure, it is determined that the container is sealed, and the pressure value is If it changes, the fluid leaks through the gap to determine if there is a leak.

In particular, the water storage tank is made of plastic so that there may be a slight expansion and contraction, so that the momentary pressure is applied only after having a stabilizing time, and in addition to the expansion or loss of the nozzle after applying the instantaneous pressure Reflect the High Limit Loss value in the measured pressure value.

And the control device 40 is to support the multi-tasking function to display the leakage of the water purifier connected to the respective channels and the operation of the electrical unit to each monitor unit, and each solenoid valve according to the type and number of the solenoid valve It measures the resistance value applied to the LED and LED to judge the fact of operation, and displays the resistance value and the measured value thus confirmed on the monitor part of the corresponding channel.

In addition, the control device 40 instructs the leak check unit to check whether there is a leak according to the pressure change, and determines whether there is a leak based on the pressure value obtained at this time, and the value acquired for each item in the order of identification number and Judgment results are listed for quality control. At this time, the identification number is a number consisting of a combination of the year and the date and the number produced, it may be an identification number of the water purifier produced according to the embodiment.

And the control device 40 is a check unit for checking whether the solenoid and the LED and the sensor is installed normally or abnormally installed in the electronic parts, a leak check unit for acquiring the changed pressure value of the leak inspection unit, And a controller for displaying a result of the determination based on the value acquired through the verification unit. In this case, each verification unit may be implemented to be applied to the control unit to determine the value obtained by being included in the connection unit, the monitor unit or the leak inspection unit according to the embodiment, and to express the result.

Figure 6 is a block diagram showing the configuration of a control device according to an embodiment of the present invention, as shown, the solenoid operation check unit 41 is for checking the operation of the solenoid valve of the water purifier / refrigerator connected to the connection portion It is connected to the connection according to the setting to confirm the type and number of the solenoid valve, and to apply the set voltage value to measure the resistance value between the both ends of the coil when the solenoid valve is interrupted for a set time, The stored value is acquired and applied to the controller.

In addition, the LED operation checking unit 42 is for testing the operation of the LED that expresses the optical signal during the operation of the water purifier, by applying a set voltage value for a set time to measure the resistance value across the both ends of the LED, the resistance Obtain the value and apply it to the controller.

In addition, the sensor operation checking unit 43 is for testing the operation of the flow sensor to determine and control the flow rate, how much the wheel that rotates when the fluid is discharged through the hose or the reservoir after the solenoid valve operation It is measured whether it has rotated and the rotation value is applied to the controller.

In addition, when the leak check unit 44 is connected to the leak check unit and receives an instruction command from the control unit and is applied to the leak check unit, the leak check unit 44 applies a pressure to the water storage tank in a set state so as to measure the pressure value changed when the water is full. Instructs and the pressure value is obtained and applied to the control unit.

The controller 45 expresses the resistance value obtained through the solenoid operation check unit and the LED operation check unit for each channel in a partitioned window of the monitor unit, and operates normally when the resistance value is less than or equal to the set reference value. To judge. At this time, if the measured resistance value is within the set range in consideration of the resistance value of the connector and cable, it is judged to be normally operated. Express it.

In this case, as shown in FIG. 7, when the controller 45 determines to be out of the range set based on the measured resistance value, the alarm device is installed at the top while recording the measured value and the determined result. To display the alarm screen.

In addition, the controller 45 instructs the leakage inspection unit to apply an instruction command generated according to a touched button or a button operation of the panel to confirm the leakage operation, and acquires the leakage inspection unit through the leakage confirmation unit. If it is less than the reference box set based on the pressure value, it is judged that it operated normally, and if it is out of the set range, it is to express the judgment result together with the pressure value obtained by determining that the water purifier assembly or the storage tank is defective.

Therefore, in the present invention, since the inspection of each part is performed at the same time in a state in which the water storage tank and the electronic parts are assembled, the inspection process can be simplified to save the defective rate and production time.

In addition, the present invention was able to easily perform quality control by database the measured values and judgment results when inspecting the water purifier or refrigerator in the assembled state, thereby improving the quality and reliability of the product to improve the competitiveness of the product It is possible to secure.

Hereinafter, the operation of the leak and the electric field check device according to an embodiment of the present invention.

First, the present invention is to insert the inlet hose and outlet hose of the water purifier and the cooling hose and the heating hose according to the embodiment in the nozzle hole of the connection portion. At this time, the solenoid valve of the water purifier, the LED and the connector of the electrical device, including the sensor, the other side of the connecting cable, and connect the connecting cable to the connection.

Then, while the hose and connector of the water purifier are connected to the connection part, check the type and number of the solenoid valve built in the water purifier, and touch the button implemented on the monitor to determine whether the solenoid valve is 110V type. Or 220V type. In addition, the number of built-in solenoid valves can be set. At this time, check the operation of the solenoid valve and select a device (LED, sensor) to be tested together.

When the START button of the monitor unit is touched, the control unit operates the pressure piece to press and fix the hose inserted into the nozzle hole. In addition, the control device drops the set power in the state holding the leak inspection unit to apply as much power (12V / 5V) as necessary to each sensor and LED to operate the LED and the sensor.

Then, by operating the resistance relay to measure the resistance value between the both ends of the coil of the solenoid valve, and to display it to the monitor.

Then, the voltage relay is operated while the resistance relay is turned off to operate the built-in solenoid valve.

In particular, in order to confirm that there is no abnormality during assembly, it is necessary to check the pressure value when the control valve for injecting fluid and one or more solenoid valves built in the water purifier are operated by operating a specific solenoid valve. That is, to check the pressure value for each solenoid valve to ensure that there is no abnormality, and to reflect this when leak inspection.

After the set time, the control valve is controlled to discharge the fluid introduced during the set exhaust time.

That is, the control valve MS12 is driven in the state that the voltage relay is operated to drive the solenoid valves MS13, MS14, and MS15 of the water purifier, and the control valve in the open state by operating the solenoid valve MS13. The operation of the assembled solenoid valve MS13 is checked by opening (MS11, MS17) and injecting fluid into the reservoir tank to measure the pressure value. Then, the control valve MS161 is operated to discharge the fluid to the outside.

At this time, the control device obtains and displays the rotation value of the FLOW sensor that operates while the fluid is flowing in or out while obtaining the pressure value. In addition, secure and display the resistance value of the LED in operation.

After that, control the control valve to inject the fluid into the inlet hose and the outlet hose at the same time so that the inside of the reservoir tank is filled with the fluid to reach the set pressure value, and after the plastic stabilization time, the momentary pressure is applied to check the pressure change. .

The control valve is controlled to discharge the fluid to the outside through the outlet hose.

At this time, the control device determines that it is normal when it is inside the set range based on the measured resistance value and the pressure value, and on the contrary, if the control device is out of the set range, the water purifier is determined to be defective.

In addition, the control device is a database of measured values and determination results for each solenoid valve, sensor, LED, and leakage state, and displays them in a separate list device in the order of identification.

Therefore, in the present invention, since the inspection of each part is performed at the same time in a state in which the water storage tank and the electric parts are assembled, the inspection process is simplified to save defects and production time that may occur during assembly.

In addition, the present invention can easily perform quality control by database the measured values and judgment results when the water purifier or refrigerator inspection in the assembled state, thereby improving the quality and reliability of the product to improve the competitiveness of the product It can be secured.

1: water purifier 2: inlet hose
3: outflow hose
10: Connection part 11: Nozzle hole
12: stand 13: pressure rod
14: connecting connector 15: connecting cable
16: button
20: monitor unit 30: leak inspection unit
40: controller 41: solenoid operation check unit
42: LED operation check unit 43: sensor operation check unit
44: leak check unit 45: control unit
46: display device
50: power supply and operation panel

Claims (5)

delete It is connected to the inlet hose and the inlet hose of the assembled reservoir tank, and it is connected to the built-in solenoid valve, the sensor to detect the flow of fluid, and the power connector of the LED to display the operation facts.
Through the leak inspection unit and control device, check the leakage occurrence of the storage tank according to the pressure change and the malfunction of the electric field according to the resistance value, and display the test result on the display device.
In addition, the inlet and outlet hoses of the reservoir tank, a plurality of nozzle holes into which the cooling hose or the heating hose is fitted, a sensor for detecting the flow of the solenoid valve and the fluid, and the connector of the solenoid valve or the LED are fitted to one side. Connecting part formed with a losing connector,
And while the hose and the connector is connected to the connection portion, and set the type and number of the built-in solenoid valve and instructs the operation while on the screen with the result of the operation check on the one side of the connection and the configuration of the control valve on the other side On the side, the solenoid valve and LED of the water purifier and the monitor unit which is implemented by expressing the configuration of the sensor,
The pressure and the time to pressurize are set while the flow and pressure of the fluid are controlled so that the solenoid valve is in the stopped state or when the solenoid valve is in the open state. Leak inspection unit to check the changed pressure value and check the leakage after injecting the fluid,
By measuring the resistance value applied to each solenoid valve and the LED according to the type and number of the solenoid valve through the connection portion to determine whether there is a defect, and also by operating the leak inspection unit to determine the leakage by checking the changed pressure value And a control device for listing the operation facts and the leakage of the solenoid valve in order of identification number to control quality. 3. The method of claim 2,
The leakage inspection unit sets a minimum pressure value and a maximum pressure value, and when the maximum pressure value is reached, has a time to stabilize the expansion of the reservoir tank, and then applies instantaneous pressure to check for leakage according to the changed pressure value. Leak and electrical inspection device. 3. The method of claim 2,
The connection part is connected to the connector of the solenoid valve, the connector of the sensor for detecting the flow of fluid, and the connector of the LED is connected to the connector of the connector in the state that the connector of the LED that expresses the operation of the optical signal is inserted on one side. Leakage and electric field inspection device made. 3. The method of claim 2,
Check the type and number of solenoid valves connected to the connection part, measure the resistance value between both ends of the coil when the solenoid valve is interrupted, and obtain the resistance value between the both ends of the coil to determine whether the operation is true or not. Solenoid operation check unit for checking,
While checking whether or not the solenoid valve is operating, measure the resistance value between the both ends of the LED that emits an optical signal to the operation fact of the solenoid valve, and obtain a resistance value between the both ends of the LED to determine whether the operation is true or not. LED operation check unit to check,
A sensor operation checking unit for measuring how much the rotating wheel rotates when the fluid passes through the hose or the storage tank after the solenoid valve operation, and receiving the rotation value to determine whether the operation is true;
When it is connected to the leak check unit, the control command is applied to the leak check unit, and the pressure is applied to the water storage tank to measure the changed pressure value, and the pressure value is obtained to determine whether there is a leak. Leakage check section to
The resistance value obtained through the solenoid operation check unit and the LED operation check unit is expressed in a compartment of the monitor unit, and it is determined that the unit operates normally when the resistance value is lower than the set reference value. Applied to the leak inspection unit, and when the operation is less than the reference value set based on the pressure value obtained through the leakage check unit, it is determined that the normal operation, judged that the abnormal operation to operate the alarm, in order of identification number Leakage and electric field check device including each valve, sensor and control unit to list and display measured value and judgment result for each LED.

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