KR101211587B1 - Washing machine comprising devie for preventing water leakage - Google Patents

Abstract

Disclosed is a washing machine having a residual water leakage preventing device. The disclosed invention includes: a pump for discharging residual water in a washing machine, a pump filter detachably coupled to the pump to filter foreign substances mixed in the residual water through the pump, and a removably coupled to the front of the pump filter to protect the pump filter. Residual hose which is connected to the pump so as to discharge the residual water in the pump and extends outward through one side of the pump door, a residual hose stopper for opening and closing the residual hose, and a residual hose formed at one side of the residual hose And a sensor unit that detects whether the stopper is opened or closed by a stopper, and an operating unit electrically connected to the sensor unit and controlling the opening and closing of the pump door according to whether the remaining hose is opened or closed through the sensor unit.

According to the present invention, when the washing machine is operated without blocking the residual hose of the washing machine according to the present invention, the washing machine does not allow the water supply to proceed, or the stopper of the residual hose is not closed to prevent an accident due to leakage of the residual hose. Can be.

Washing machine, pump filter, residual hose, reed switch

Description

WASHING MACHINE COMPRISING DEVIE FOR PREVENTING WATER LEAKAGE}

1 is a view showing a washing machine according to the prior art.

Figure 2 is a view schematically showing a drainage of the washing machine according to the prior art.

3 is a view showing an embodiment of a residual water leakage preventing device according to the present invention.

4 is an enlarged partial cross-sectional view of the residual hose of FIG. 3.

FIG. 5 is a circuit diagram briefly illustrating a relationship between the reed switch and the solenoid of FIG. 3.

Description of the Related Art [0002]

100: washing machine 110: drainage

120: pump filter 130: operating part

132: protrusion 135: solenoid

140: Residual Hose 145: Residual Hose Stopper

150: reed switch 155: lead wire

160: pump door 161: hinge

The present invention relates to a washing machine, and more particularly to a washing machine having a residual water leakage preventing device.

In general, a washing machine is a product that removes various contaminants attached to clothes, bedding, etc. by using the emulsification of the detergent and friction action of the water flow due to the rotation of the washing blade, and the impact of the washing wing on the laundry. By detecting the amount and type of laundry by automatically setting the washing method, and also to wash the water to the appropriate level according to the amount and type of laundry to wash under the control of the microcomputer.

1 is a view showing a washing machine according to the prior art, Figure 2 is a view schematically showing the drainage of the washing machine according to the prior art.

1 and 2, most drum washing machines 100 employ a pump (not shown) as a drainage means 10, and the pump filter 20 filters foreign substances mixed in the residual water through the pump. To the front of the pump.

However, it is difficult to discharge all of the remaining water in the washing machine by the pump, and thus the remaining water remains in the washing machine. Therefore, the drum washing machine 100 is equipped with a separate residual hose 40 for discharging the remaining water.

The residual hose 40 is a residual hose stopper 45 or a cover is attached to prevent the residual water, if the consumer drives the washing machine without blocking the residual hose 40 with the residual hose stopper 45 or cover When the water is supplied to all the water flows through the remaining hose 40, the problem of polluting the surroundings of the washing machine occurs.

This situation becomes more problematic when the washing machine 100 is installed in a living room or the like, which may be caused by carelessness of the user and not a product problem, but may be regarded as a complaint about the washing machine itself.

Therefore, there is a need to improve this.

The present invention was created by the necessity as described above, if you operate the washing machine without blocking the residual hose of the washing machine does not allow the washing machine to proceed with the water supply, or tells that the residual hose is not closed to prevent accidents due to leakage of the residual hose. The purpose is to provide a washing machine that can be prevented.

Washing machine having a residual water leakage preventing device according to the present invention comprises: a pump for discharging residual water in the washing machine; A pump filter detachably coupled to the pump to filter foreign matter mixed in the residual water through the pump; A pump door coupled to the front of the pump filter so as to protect the pump filter; A residual hose connected to the pump to discharge residual water in the pump and extending outward through one side of the pump door; Residual hose stopper for opening and closing the residual hose; A sensor unit formed at one side of the residual hose to detect whether the residual hose is opened or closed by a stopper; And an operation unit electrically connected to the sensor unit and controlling opening and closing of the pump door according to whether the residual hose is opened or closed through the sensor unit.

In addition, the residual hose and the residual hose cap is preferably formed integrally.

In addition, the sensor unit preferably comprises a reed switch.

The operation unit may include a solenoid electrically connected to the sensor unit; It is connected to the solenoid and forms a protruding piece to prevent the pump door from closing when the residual hose is not closed by the residual hose stopper.

In addition, the reed switch is more preferably formed by molding in the residual hose to prevent contact with the residual water.

The washing machine having the residual water leakage preventing device according to the present invention prevents the washing machine from proceeding with water supply when the washing machine is operated without blocking the residual hose of the washing machine, or informs that the residual hose is not closed to prevent accidents due to leakage of the residual hose. You can prevent it.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of a washing machine having a residual water leakage preventing device according to the present invention. For convenience of explanation, the residual water leakage preventing device provided in the drum washing machine will be described as an example. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

Figure 3 is a view showing an embodiment of the residual water leakage preventing device according to the present invention, Figure 4 is an enlarged partial cross-sectional view showing the residual hose of Figure 3, Figure 5 is a relationship between the reed switch and the solenoid of Figure 3 It is a simplified circuit diagram.

3 and 4, the residual water leakage preventing device according to the present invention, the pump (not shown), the pump filter 120, the pump door 160, the residual hose 140, the residual hose stopper 145, It is composed of a sensor unit (not shown) and the operation unit 130.

The pump serves to discharge the residual water in the washing machine 100, the pump filter 120 is detachably coupled to the pump to filter foreign matter mixed in the residual water through the pump.

The pump door 160 is coupled to the front and rear of the pump filter 120 so as to protect the pump filter 120, the hinge 161 is formed on the lower side of the pump door 160, the pump door ( 160 is opened and closed.

Residual hose 140 is for removing residual water accumulated on the floor even after discharging the residual water through the pump, is connected to the pump to discharge the residual water in the pump, and penetrates through one side of the pump door 160 It is designed to extend outward.

Residual hose stopper 145 serves to open and close the inlet of the residual hose 140, it is formed integrally with the residual hose 140.

The sensor unit may be formed at one side of the residual hose 140 to detect whether the residual hose stopper 145 is opened or closed, which is implemented using the reed switch 150.

The reed switch 150 is a lead contact of a magnetic material enclosed in a glass tube, and when a magnetic force is applied from outside to form a magnetic field by flowing a current through a magnet or a coil, a contact is attached and a switch operation is used. It's like a stationery shop or a hardware store. When you open the door, you can hear birds or melody alarms.

The reed switch 150 may reduce the risk of short circuit by molding the wiring because the residual hose 140 discharges water (see FIG. 4), and also attaches the reed switch 150 to the outside of the residual hose 140. Of course, you can install.

The operation unit 130 is electrically connected through the sensor unit and the conductive wire 155, and controls the opening and closing of the pump door 160 according to whether the residual hose 140 is opened or closed through the sensor unit.

The operation unit 130 is composed of a solenoid 135 and a protrusion 132, the solenoid 135 is electrically connected to the sensor unit, it is generally composed of a cylindrical permanent magnet and a coil surrounding it.

When a current flows through the coil surrounding the permanent magnet, the electric field is changed, so that the permanent magnet is moved left and right by the changed electric field, and the coil and the permanent magnet are collectively referred to as a solenoid 135.

The protruding piece 132 is connected to the end of the solenoid 135, the protruding piece 132 is also moved to the left and right by the left and right linear movement of the solenoid 135.

In addition, when the user wants to operate the washing machine, when the residual hose stopper 145 does not close the residual hose 140 may be notified of this through a warning sound.

Hereinafter, with reference to the accompanying drawings will be described in detail the operation of the washing machine having a residual water leakage preventing device according to an embodiment of the present invention.

When the user closes the residual hose 140 with the residual hose stopper 145, the reed switch 150 is connected by the combination of the residual hose stopper 145 and the residual hose 140 to close the circuit shown in FIG. 5. As the electricity flows. At this time, the electric field is changed to the electric wire surrounding the solenoid 135 by the generated electric field so that the solenoid 135 moves to the right side, and the protruding piece 132 attached to the end of the solenoid 135 also moves to the right side. do.

Therefore, the protruding piece 132 blocking the front surface of the pump door 160 moves to the right side as the solenoid 135 moves to the right side, thereby allowing the pump door 160 to be freely closed.

On the contrary, when the user operates the washing machine without closing the residual hose 140 with the residual hose stopper 145, the reed switch 150 is opened to open the circuit shown in FIG. 5, and the solenoid 135 is opened. Since there is no change in the electric field through the wires, the solenoid 135 remains intact so that the protruding piece 132 at the end of the solenoid 135 blocks the front of the pump door 160.

Therefore, the user cannot close the pump door 160 to recognize the user as an improper use of the washing machine, and additionally, through a warning sound that the user does not close the residual hose 140 when the user wants to use the washing machine. Make it aware.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand. In addition, the residual water leakage preventing device provided in the drum washing machine has been described as an example, but this is merely illustrative, and the residual water leakage preventing device of the present invention may also be used in the residual water leakage preventing device used in a general washing machine. Accordingly, the true scope of protection of the present invention should be defined by the following claims.

As described above, the washing machine having the residual water leakage preventing device according to the present invention does not prevent the washing machine from proceeding with water supply when the washing machine is operated without blocking the residual hose of the washing machine, unlike the conventional invention, or the stopper of the residual hose is not closed. The sound can be prevented to prevent accidents caused by leakage of residual hose.

Claims (5)

A pump for discharging the residual water in the washing machine; A pump filter detachably coupled to the pump to filter foreign matter mixed in the residual water through the pump; A pump door coupled to the front of the pump filter so as to protect the pump filter; A residual hose connected to the pump to discharge residual water in the pump and extending outward through one side of the pump door; Residual hose stopper for opening and closing the residual hose; A sensor unit formed at one side of the residual hose to detect whether the residual hose is opened or closed by a stopper; And The washing machine having an apparatus for preventing water leakage, which is electrically connected to the sensor unit and includes an operation unit for controlling opening and closing of the pump door according to whether the remaining hose is opened or closed through the sensor unit. The method of claim 1, Washing machine having a residual water leakage preventing device characterized in that the remaining hose and the remaining hose stopper is formed integrally. The method of claim 1, The sensor unit washing machine having a residual water leakage preventing device, characterized in that consisting of a reed switch. The method of claim 1, wherein the operation unit, A solenoid electrically connected to the sensor unit; And And a protruding piece connected to the solenoid to prevent the pump door from being closed when the residual hose is not closed by the residual hose stopper. The method of claim 3, And the reed switch is formed by molding in the residue hose to prevent contact with the residue.

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