KR20110004086U - Detection device of leakage water - Google Patents

Abstract

The present invention, when the volume of the compressed body absorbing the fluid leaked from the water purifier, dishwasher, washing machine (hereinafter referred to as "water purifier") is expanded, the micro switch detects the plunger flowing in conjunction with the control signal to control the detection signal When transmitting to (PCB), the solenoid valve operated in accordance with the electrical signal from the control unit to automatically close the raw water movement passage,

Leak detection apparatus according to an embodiment of the present invention,

In the water leakage detection device is provided with a solenoid valve to open and close the raw water movement passage for supplying the raw water from the raw water supply source to the water purifier,

A lower case in which an opening into which the leaked water leaked from the water purifier flows is formed on the bottom surface, and a compacted body in which the volume is expanded due to absorption of the leaked water flowing through the opening;

A plunger seated on the compressed body and lifted in conjunction with the volume expansion of the compressed body,

An upper case coupled to the lower case and having a through hole through which the plunger is liftably coupled;

A microswitch mounted on the upper case and switched on in contact with the plunger which is lifted by the volume expansion of the compressed body to detect leakage from the water purifier;

And a control unit for outputting an electrical signal to the solenoid valve so as to close the raw water movement path according to the detection signal input from the micro switch.

Water Purifier, Leak Detection Device, Micro Switch, Undersink, Pulp Compress, Sensor

Description

Leakage Detection Device {detection device of leakage water}

The present invention detects when a fluid such as raw water leaks from a water purifier, a dishwasher, a washing machine, or an undersink (hereinafter referred to as a "water purifier"), so as to automatically close the raw water passage connected to the water purifier. A leak detection apparatus is provided.

More specifically, when the volume of the compressed body that absorbs the fluid leaked from the water purifier, etc. is expanded, the micro switch detects the plunger that flows in conjunction and transmits a detection signal to the controller (referring to PCB), from the controller The present invention relates to a leak detection device that automatically closes a raw water moving passage by a solenoid valve operated according to an electrical signal of a.

Water purifier leak prevention apparatus of the prior art shown in Figure 1,

Raw water inlet (1) in communication with the raw water supply source (tap water, groundwater, etc.), raw water outlet (2) communicated to the water purifier, and raw water inlet (1) and the raw water moving passage (3) for communicating the raw water outlet (2) An upper case 4 formed therein;

The lower case is fixed to the bottom surface of the upper case 4, the lower case is embedded with a compressed body 5 (pulp compression body, etc.) is expanded when the leaked water leaked from the water purifier and flowing through the bottom surface is absorbed 6,

It is fluidly coupled to open and close the raw water flow passage 3, and interlocks when the volume of the compressive body 5 expands due to the leakage of water, thereby closing the raw water flow passage 3, Plunger (7) for the check valve to block the discharge of raw water through,

And an elastic member 7 (compression coil spring is used) for elastically supporting the check valve plunger 7 in the opposite direction of closing the raw water movement passage 3.

In the water purifier leak prevention apparatus configured as described above, when a part of the fluid leaks from the water purifier or undersink water purifier supplied from the raw water source, the leaking water is accumulated on the floor surface on which the water purifier leak prevention apparatus is installed. At this time, the compressed body 5 is expanded due to absorption of the leaked water flowing through the bottom surface of the lower case 6.

As the compressed body 5 expands, the check valve plunger 7 moves upward in the drawing to block the raw water movement passage 3. That is, the raw water flows into the upper case 4 through the raw water inlet 1 from the raw water supply source and blocks the raw water flow to the raw water outlet 2.

Therefore, since the inflow of raw water to the water purifier is blocked, it is possible to prevent the leakage of more fluid (referred to as raw water or purified water) from the water purifier.

The water purifier leak prevention device of the prior art has a check valve plunger (7) and the same when the raw water movement passage (3) is blocked by the check valve plunger (7) interlocked due to the expansion of the compressed body (5). If the O-ring 7a mounted on the check valve plunger 7 is corroded or damaged to close the gap between the raw water moving passages 3 to be in close contact with each other, the raw water moving passages 3 cannot be completely sealed. There is a problem that can continuously leak through the passage (3).

In addition, the raw water inlet (1) and the raw water outlet (2) is formed in the upper case (4), and the collet (not shown) to connect the tube tube (not shown) to the raw water inlet (1) and the raw water outlet (2) 8) are combined respectively.

As a result, the number of parts constituting the water purifier leak prevention device is increased to increase the cost cost, and the work time for injection molding and assembling them is increased, thereby increasing the manufacturing cost, thereby lowering the price competitiveness.

According to an embodiment of the present invention, when the fluid leaks from the water purifier and the like, the volume of the compressed body is expanded, the raw water movement path is closed by the operation of the solenoid valve according to the electrical signal from the controller to prevent further fluid leakage. In addition, the present invention relates to a leak detection device that can prevent secondary losses caused by leaks.

An embodiment of the present invention is related to a leak detection apparatus that can increase the price competitiveness by reducing the number of parts due to the simplified structure, thereby reducing the cost and manufacturing cost.

Leak detection apparatus according to an embodiment of the present invention,

In the water leakage detection device is provided with a solenoid valve to open and close the raw water movement passage for supplying the raw water from the raw water supply source to the water purifier,

A lower case in which an opening into which the leaked water leaked from the water purifier flows is formed on the bottom surface, and a compacted body in which the volume is expanded due to absorption of the leaked water flowing through the opening;

A plunger seated on the compressed body and lifted in conjunction with the volume expansion of the compressed body,

An upper case coupled to the lower case and having a through hole through which the plunger is liftably coupled;

A microswitch mounted on the upper case and switched on in contact with the plunger which is lifted by the volume expansion of the compressed body to detect leakage from the water purifier;

And a control unit for outputting an electrical signal to the solenoid valve so as to close the raw water movement path according to the detection signal input from the micro switch.

It is installed on the front of the water purifier described above, and when the fluid leaks from the water purifier according to the detection signal by the microswitch, it includes a display window for indicating that the user is leaking from the water purifier.

It is installed in the front of the water purifier, and when the fluid leaks from the water purifier according to the detection signal by the micro switch, it includes a buzzer to generate a warning sound to inform the user that the water leak from the water purifier.

It includes an elastic member for elastically supporting the aforementioned plunger in a direction to be separated from the microswitch.

As the above-mentioned compressed body, any one of pulp compressed body, sponge paper, nonwoven fabric and rayon is used.

At least one of the above-mentioned upper case and lower case is formed of a transparent body so that the internal parts thereof can be visually checked.

The leak detection apparatus according to the embodiment of the present invention configured as described above has the following advantages.

When the fluid leaks from the water purifier and the like, the volume of the compressed body expands, the solenoid valve is operated by the operation of the solenoid valve according to the electrical signal from the controller, thereby preventing further fluid leakage. It is possible to prevent secondary losses (torsion of wood due to moisture penetration or fire caused by leakage).

In addition, since parts such as a fluid sealing O-ring are unnecessary in the plunger, the cost can be improved by reducing the number of parts due to the simplified structure, thereby reducing the cost and manufacturing cost.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, which are intended to be described in detail so that those skilled in the art to which the present invention pertains can easily carry out the present invention. It does not mean that the technical spirit and scope of the present invention is limited.

Leak detection apparatus according to an embodiment of the present invention shown in Figures 2 to 6 (a, b),

In the water leakage detection device is provided with a solenoid valve to open and close the raw water movement passage for supplying the raw water from the raw water supply source to the water purifier,

Openings are separated by fixing means (not shown screw, double-sided tape, magnetic material, etc.), detachably fixed to the bottom surface of the structure in which the water purifier A is installed, and the leaked water leaked from the water purifier A flows in ( 11 is formed on the bottom surface, and the lower case 13, the built-in compression body 12, the volume is expanded due to the absorption of leaks flowing through the opening 11,

A plunger 14 seated on the compressed body 12 and interlocked with the volume expansion of the compressed body 12,

An upper case 16 coupled to the lower case 13 and having a through hole 15 to which the plunger 14 is liftably coupled;

Mounted on the upper case 16 and switched on when contacted with the plunger 14 which is raised due to the volume expansion of the compression body 12 to detect leakage from the water filter 10 of the water purifier A. The micro switch 17,

And a controller 23 (PCB) for outputting an electrical signal to the solenoid valve 19 to close the raw water movement path 18 in accordance with the detection signal input from the micro switch 17.

When the fluid is leaked from the water purifier A in accordance with the detection signal by the micro switch 17, the light is turned on and turned on in front of the water purifier A described above. It includes a display window 22 to inform. Although not shown in the drawing may include a buzzer for generating a warning sound when the fluid leaks from the water purifier (A).

And an elastic member 21 (compression coil spring is used) that elastically supports the aforementioned plunger 14 in a direction that is separated from the microswitch 17.

As the above-mentioned compressed body 12, any one of a pulp compressed body, a sponge paper (referring to a paper sponge), a nonwoven fabric, and rayon is used.

At least one of the upper case 16 and the lower case 13 described above is formed of a transparent body (ABS material, PC material, etc.) to visually check the internal parts.

At this time, a water purifier (A) for passing the raw water supplied from the raw water supply source through the filter housing (four in the drawing) in order to discharge the purified water to the faucet, etc., and the raw water movement passage (18) according to the electrical signal from the outside Detailed description of the solenoid valve 19 installed to open and close the, since the technical content used in the art, the detailed description of their configuration and operation will be omitted.

Hereinafter, with reference to the accompanying drawings an example of the use of the leak detection apparatus according to an embodiment of the present invention will be described in detail.

A) The case where no fluid leaks from the water purifier is explained.

5 and 6 (a), the solenoid valve 19 installed in the raw water moving passage 18 for supplying the water purifier A installed in the kitchen sink of an apartment or the like from the raw water supply source is opened in an initial state. Keep it.

At this time, since the display window 22 installed on the front of the water purifier (A) maintains the initial state turned off, the user can visually check the state that the fluid does not leak from the water purifier (A).

In addition, the initial state of pressing the plunger 14 downward in the drawing by the elastic force of the elastic member 21 is maintained. As a result, the microswitch 17 maintains a switching off state separate from the plunger 14, so that a detection signal is not transmitted from the microswitch 17 to the controller 23.

Therefore, the control signal from the control unit 23 is not transmitted to the solenoid valve 19, so that the raw water movement passage 18 maintains the open initial state.

B) The case of fluid leakage from the water purifier will be described.

As shown in Figure 5 and Figure 6 (b), when the fluid leaks from the water purifier (A) described above is leaked to the bottom surface of the structure in which the water purifier (A) is installed. At this time, as the leaked water flows through the opening 11 formed at the bottom of the lower case 13 spaced apart from the bottom surface, the compressed body 12 embedded in the lower case 13 expands due to the absorption of the leaked water. do.

As the compressed body 12 is expanded, the plunger 14 seated on the upper surface of the compressed body 12 is interlocked and moved upward along the through-hole 15 formed in the upper case 16 (the elastic member at this time). 21 is subject to compressive force).

Due to the rise of the plunger 14, the microswitch 17 embedded in the lower case 13 is switched to the switched-on state in contact with the plunger 14, thereby detecting leakage of fluid from the water purifier A.

As the detection signal from the micro switch 17 is transmitted to the control unit 23 (PCB), the control unit 23 outputs a control signal to the solenoid valve 19 so as to block the raw water movement passage 18, thereby providing a solenoid valve ( 19) to the closed state. This cuts off the raw water moving passage 18 for supplying raw water to the water purifier A from the raw water supply source.

Therefore, since the inflow of raw water into the water purifier A from the raw water supply source is prevented, no further fluid leakage from the water purifier A is prevented.

On the other hand, since the display window 22 installed on the front of the water purifier (A) is turned on, the user visually confirms that the fluid leaks from the water purifier (A), through the joint connection portion of the water filter (10) of the water purifier (A) You can check for leaks.

On the other hand, as the lower case 13 is detachably fixed to the bottom surface by a screw or the like, when the new compact is replaced after removing the compressed body 12 in which the leaked water is absorbed from the lower case 13, the water leaks. The detection device B can be semi-permanently repeated and reused.

1 is a schematic diagram of a water purifier leak prevention apparatus according to the prior art,

2 is a schematic side view of a leak detection apparatus according to an embodiment of the present invention;

3 is a view showing a state before a leak is detected in the leak detection apparatus according to an embodiment of the present invention,

4 is a view showing a state after a leak is detected in the leak detection apparatus according to an embodiment of the present invention,

5 is a state of use of the leak detection apparatus according to an embodiment of the present invention,

6 (a, b) is an electric circuit diagram showing the case of normal and leak detection in the leak detection apparatus according to an embodiment of the present invention.

* Explanation of symbols used in the main part of the drawing

A; water purifier

10; Water filter

11; Opening

12; Compressed body

13; Lower case

14; plunger

15; Through hole

16; Upper case

17; Micro switch

18; Enemies

19; Solenoid valve

20; Upper case cover

21; Elastic member

22; Display window

23; Control Unit (PCB)

Claims (6)

In a leak detection apparatus in which a solenoid valve is installed to open and close a raw water flow passage for supplying raw water from a raw water supply source to a water purifier: A lower case in which an opening through which the leaked water leaked from the water purifier flows is formed on a bottom surface thereof, and a compression body in which a volume is expanded due to absorption of the leaked water introduced through the opening; A plunger seated on the compressed body, the plunger being lifted in cooperation with the volume expansion of the compressed body; An upper case coupled to the lower case and having a through hole through which the plunger is liftably coupled; A micro switch mounted to the upper case and switched on when contacted with the plunger which is raised due to the volume expansion of the compressed body to detect leakage from the water purifier; And And a control unit for outputting an electrical signal to the solenoid valve to close the raw water movement passage in accordance with a detection signal input from the micro switch. The water purifying apparatus of claim 1, further comprising a display window installed on the front of the water purifier and lighting the fluid when the fluid is leaked from the water purifier according to the detection signal of the micro switch. Leakage detection device. The leak detection apparatus according to claim 2, further comprising an elastic member elastically supporting the plunger in a direction separate from the micro switch. 4. The leak detection apparatus according to claim 3, wherein any one of a pulp compact, a sponge paper, a nonwoven fabric, and rayon is used as the compact. The water purifier of claim 4, further comprising a buzzer installed at the front of the water purifier and generating a warning sound when the fluid leaks from the water purifier according to the detection signal of the micro switch. Leak detection device. 6. The leak detection apparatus according to any one of claims 1 to 5, wherein at least one of the upper case and the lower case is formed of a transparent body to visually check the internal parts thereof.

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