KR20180060558A - Washer Door Double Lock with Lid Lock Switch - Google Patents

Abstract

The present invention relates to a door dual locking device of a washing machine having a lid lock switch, comprising: a housing (1); a motor (3) and a gear (5) accommodated in the housing; a locking means (10) having a locking protrusion (13) capable of sliding back and forth in one direction (forward) or the other direction (reverse) by motions of the motor and the gear; a sensing means (30) having a first contact terminal (33) and a second contact terminal (35) for sensing a level of the locking means, and a ground terminal (31); and a control unit regulating the locking device. The locking device is interconnected with a pre-set series of washing processing program and comprises a lid lock switch (40) having a self-closed circuit (50) which opens/closes a door of a washing machine by sliding a trigger device (a) in a contact method for sensing opening/closing the door of the washing machine and the locking means having the locking protrusion back and forth. Therefore, a unique effect is provided to prevent problems that the door opens during washing operations or does not open after washing, caused by program errors by defects of the washing machine itself, a lightning surge introduction in a control unit with a program embedded therein in summer season, surrounding magnetic field or electric fields.

Description

[0001] Washer Door Double Lock with Lid Lock Switch [

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock device for a washing machine, and more particularly, to a door lock device having a door opening / closing function only by a conventional program, To a door double lock device having a lead lock position for stably performing opening and closing of a door of a washing machine according to the present invention.

Generally, a washing machine is a device that uses a mechanical force to remove, rinse, drain, and dry dirt when the clothes are stuck on the clothes or the dirty material by the action of a soap or detergent and mechanical force. The mechanical force of the washing machine is stored in a predetermined program in a control unit having a microprocessor and a storage means, and the laundry is automatically fully washed through a series of programmed strokes.

A conventional washing machine that performs such a function includes a water tank for storing washing water, a perforated rotating tub provided inside the water tub to perform a dehydrating function, and a driving device having a motor controlled in forward and reverse rotations, Respectively. In addition, a door is provided at an upper portion of the housing with an inlet for putting laundry out, and a door having a locking device for opening and closing the inlet. The door of the washing machine is easily opened by vibration etc. without any care during washing, and unexpected user safety accident including children is taking place. Particularly, in the case of washing the laundry stored in the recently developed water tank through the electric heater, when the door suddenly opens during washing, a safety accident that the user burns by hot steam has occurred.

In order to solve such a problem, Korean Patent Registration No. 10-1236951 (Feb. 02, 2013), which is registered by the present applicant, has proposed a washing machine door locking device.

However, the patented technology also controls the locking device of the washing machine only with the program, so it can not be used for the program set by the self-defects, user carelessness, lightning surge inflow accompanied by summer thunderstorm, There is still a problem that the door is opened during the operation of the washing machine or the door is not opened after washing.

Accordingly, the present invention proposes a more stable washing machine door lock device in which a lead lock switch is added to the conventional programming method.

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems as described above, and it is an object of the present invention to provide a washing machine door lock device which can be opened and closed only by a conventional program, Lock switch) is added to implement a door double lock device together with a washing machine control program, a program error occurs due to the inflow of a lightning surge into the control unit in which the washing machine itself is defective or the program is loaded, Which can prevent a problem that the door is opened during operation of the washing machine or that the door is not opened after the washing operation.

According to an aspect of the present invention for achieving the above-described object, A motor 3 and a gear 5 housed in the housing and a locking protrusion slidable forward and backward in one direction (forward direction) or the other direction (reverse direction) by the operation of the motor and the gear (30) having a first contact terminal (33) and a second contact terminal (35) and a ground terminal (31) for detecting the degree of the locking means and a locking means The lock device comprising a contact trigger device for sensing the opening and closing of the door of the washing machine in cooperation with a predetermined series of washing and washing programs, (40) having a self closed circuit (50) for opening and closing the door of the washing machine by sliding the locking means provided with the protrusion forward and backward. The lid lock switch Three with a lock position The group offers a double lock the door.

According to another embodiment of the present invention, the operation principle of the lid lock switch 40 and the control unit includes (1) electrical switching means for sensing whether the door of the washing machine is opened or closed using a magnetic field, The control unit detects that the door of the washing machine is closed when the reed switch 4 is turned on while the door of the upper part of the washing machine is closed through the Reed S / The control unit pushes the button of the trigger device ⓐ while the washing door is closed by the user in a physical contact manner together with the detection signal of the reed switch ④ and the signal of the contact ③-1 and the contact ③-2 is connected (3) confirming the initial position of the lever (b), which is the locking means (10) of the washing machine door, through the on state of the contact (6) (Lever) at the current position of ⓑ (4), the motor (3) operates until the contact (3) is turned on, and the lever (10), which is the locking means (10) (5) If the door of the washing machine is not closed while the reed switch (4) is in the on state, (1) to (5), including that the ON signal of the contact point (3) is not transmitted to the control section because the contact point (3-1) and the contact point (3-2) A trigger device having an operating principle and a lead lock position (Lid Lock Switch) 40 having a self closed circuit (50) are interlocked with the control unit to detect the opening of the washing machine door.

According to another embodiment of the present invention, the lead lock position (Lid Lock Switch) 40 is interlocked with a series of laundry administration programs set in the control unit, and even if an error occurs in the program of the control unit, Self-closed circuit "between the first contact terminal 33 and the second contact terminal 35 and the ground terminal 31 so as to maintain the forward driving state of the first contact terminal 33 The gear 5 connected to the motor 3 is rotated in one direction according to the program so that the locking means 10 slides in the forward direction so that the lock protrusion 13 Is inserted into the inside of the washing machine door to continuously maintain the locking function so that the washing machine door is not opened arbitrarily.

According to another embodiment of the present invention, the lead lock position (Lid Lock Switch) 40 is interlocked with a series of laundry administration programs set in the control unit, The control unit controls the motor 3 to rotate the gear 5 in the other direction so that the locking unit 10 slides in the opposite direction so that the locking protrusion 13 So as to maintain the state of being escaped from the inside of the washing machine door.

According to the washing machine door double locking device having the lead lock position of the present invention, the following effects can be obtained.

The present invention is characterized in that a door double lock device is implemented together with a washing machine control program by adding a trigger lock device with a trigger device and a self closed circuit to a conventional door lock device of a washing machine,

(1) It is possible to open and close the door of the washing machine steadily from the occurrence of a summer error in the control unit having the self-contained defect of the washing machine or the program, or a program error due to the peripheral magnetic field or the electric field, It is possible to prevent the problem that the door is not opened after being opened or washed.

(2) When the washing machine is in operation, it is prevented that the door of the washing machine is opened arbitrarily, thereby preventing a safety accident during washing.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an overall block diagram of a prior art door lock device in accordance with a preferred embodiment of the present invention; Fig.
Figure 2 shows a prior art sensing means in conjunction with a preferred embodiment of the present invention
Figure 3 shows a prior art locking means in connection with a preferred embodiment of the present invention
FIG. 4 is an overall schematic view showing a state in which the locking means for the double door lock device having the lead lock position according to the preferred embodiment of the present invention is removed from the inside of the washing machine door
FIG. 5 is an overall schematic view showing a state in which a locking means for a double door lock device of a washing machine door having a lead lock position according to a preferred embodiment of the present invention is inserted into a washing machine door

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, like reference numerals refer to like elements throughout. Although the same reference numerals are used in the different drawings, the same reference numerals are used throughout the drawings. The prior art should be interpreted by itself. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 to 3, a washing machine door double locking apparatus having a lead lock position according to an embodiment of the present invention includes a door double locking apparatus as described in the above-mentioned patent publication It is noted in advance that some of the technical features included in the 'Washer Door Lock' are included.

In other words,

Referring to FIG. 1, a housing 1 having a gear 5 of a motor 3, a locking means 10 and a sensing means 30 is provided in the main body of the washing machine.

1, the gear 5 is installed in the housing 1 and is installed in the housing 1 so that the gear 5 can be rotated by the operation of the motor 3. When the motor 3 is operated, And a motor 3 for rotating the motor.

Referring to FIG. 1, a locking means 10, which is engaged with the gear 5 to slide the rotation of the gear 5 and locks the door of the washing machine when it slides and protrudes from the housing 1, Respectively.

Referring to FIGS. 1 and 3, a rack gear (not shown) for sliding the locking means 10 forward and backward in accordance with forward and reverse rotation of the gear 5 so as to be able to slide during rotation of the gear 5 11 are provided.

1 to 3, the rack gear 11 is protruded from the housing 1 by sliding the rack gear 11, and is inserted into a groove formed in the washing machine door to lock and unlock the door, and the gear 5 rotates in one direction When the locking projection 13 is retracted, the locking projection 13 is received in the housing 1 to open the door of the washing machine. When the locking projection 13 is advanced by the rotation of the gear 5 in the other direction The locking protrusion 13 is protruded to the outside of the housing 1 and inserted into the washing machine door so that the washing machine door can not be opened.

Referring to FIGS. 1 to 3, a first protrusion 17 and a second protrusion 19 are provided for providing information about the degree of sliding of the locking means 10 to the sensing means 30, The first protrusion 17 protrudes in a direction in which the locking means slides and a first groove 18 is formed in the front of the first protrusion 17 so that information that the locking protrusion 13 is inserted into the housing 1 is transmitted to the sensing means 30 The second protrusion 19 protrudes from the first protrusion 17 and the second protrusion 17 protrudes from the housing 1. The second protrusion 19 protrudes from the first protrusion 17, And a sliding guide unit 15 for providing the detected information to the sensing unit 30. [

1 to 3, it is sensed that the locking protrusion 13 is inserted and protruded into the interior of the housing 1, and only when the formed first sensing protrusion 32 passes through the first groove 18, The first detection protrusion 32 is positioned at the upper end of the first protrusion 17 so as to contact the terminal 31 and the first protrusion 32 is inserted into the first groove 18 when the locking protrusion 13 is inserted into the housing 1. [ And the sliding protrusion 15 is inserted into the housing 1 when the gear 5 is rotated by the motor 3 and the locking protrusion 13 protrudes from the housing 1, The first protrusion 17 of the first protrusion 17 slides so that the first sensing protrusion 32 is located above the first protrusion 17 and is separated from the ground terminal 31.

1 to 3, it is sensed that the locking protrusion 13 is inserted and protruded into the housing, and only when the second sensing protrusion 34 formed passes the second groove 20, the ground terminal 31 The second sensing protrusions 34 are located at the upper ends of the second protrusions 19 when the locking protrusions 13 are inserted into the housing 1, And when the gear 5 is rotated by the motor 3 and the locking protrusion 13 is inserted into the door of the washing machine, the second protrusion (not shown) of the sliding guide 15 And a second contact terminal 35 contacting the ground terminal 31 while the second sensing protrusion 34 is inserted into the second groove 20 by sliding.

When the operation button is not pressed by the user, the first sensing projection 32 of the first contact terminal 33 is engaged with the first groove 18 of the first projection 17 The second sensing projection 34 of the second contact terminal 35 is arranged on the upper side of the second projection 19 so as to be in contact with the first contact terminal 33 and the ground terminal 31, And the second contact terminal 35 and the ground terminal 31 are separated from each other so that the locking protrusion 13 is not inserted into the housing 1 so that the door of the washing machine can be freely opened.

When the user presses the operation button, the controller 3 operates the motor 3 to rotate the gear 5 in one direction, while the locking means 10 slides in the forward direction and the locking protrusion 13 ) Is inserted into the inside of the washing machine door so that the door of the washing machine can not be opened.

When the set washing operation is completed, the control unit of the washing machine door lock device operates the motor 3 to rotate the gear 5 in the other direction, while the locking means 10 slides in the reverse direction so that the locking protrusion 13 The door of the washing machine can be freely opened by letting it come out from the inside of the washing machine door.

As described above, the door of the washing machine can be opened and closed only by a program of the touch pad or the operation button and the washing machine control unit for transmitting the command by the user, and the control unit having the self-contained defect of the washing machine or the program can be provided with the function of the lightning surge A program error may occur due to an inflow, a peripheral magnetic field, or an electric field, thereby causing a problem that the door is opened during operation of the washing machine or the door is not opened after washing.

Therefore, the washing double door lock device having the lead lock switch according to the preferred embodiment of the present invention is interlocked with the lid lock switch using the trigger device in the above technical construction means, It is possible to solve the problem of opening and closing the washing machine door by only the set program.

4 and 5, a key technical structure of a door double lock device having a lead lock switch according to a preferred embodiment of the present invention is characterized in that, in addition to the technical features described above, a trigger device and a self- (Lid Lock Switch) 40 having a self-closed circuit 50 is further included.

The operation function of the lead lock position 40 having the trigger device a and the self closed circuit 50 according to the embodiment of the present invention is such that the door of the washing machine is closed by the user, When the button provided on one side is pushed, power is supplied to the motor to rotate the gear 5 connected to the motor 3 in one direction according to a preset program, while the locking means 10 slides in the forward direction, (13) is inserted into the inside of the washing machine door to automatically open the door of the washing machine.

The lead lock position 40 having the trigger element a and the self closed circuit 50 may cause a program error or an abnormality in the control unit unless the user stops the operation and the open command during the operation of the washing machine The door of the washing machine can still be kept locked, so that in a recent washing machine having a function of boiling laundry using an electric heater, it is possible to prevent unexpected safety accident that the washing machine door is opened arbitrarily during washing Feature.

Referring to FIGS. 4 and 5, there is provided a lead lock position 50 having a trigger device a and a self closed circuit 50 added to the prior art. When the door of the washer is closed by a user (See Fig. 4) which is the locking means 10 having the locking protrusion 13 and a lever b (see Fig. 5) immediately after the closing.

Referring to the operation principle of the lid lock switch 40 according to the embodiment of the present invention in cooperation with the controller of the conventional washing machine,

(1) The reed switch (Reed S / W) is closed while the door at the upper part of the washing machine is closed through a reed switch (Reed S / W) (4) which is an electrical switching means for sensing whether the door of the washing machine is opened or closed using a magnetic field. ④ is turned on, and at this time, the door of the washing machine detects the closing.

(2) When the door of the washing machine is closed by the contact method, the button ⓐ of the trigger element is pushed and the signal ③-1 and the contact ③-2 are connected. At this time, the control unit confirms that the washing machine door is closed by the physical force at the same time as the reed switch (Reed S / W) 4 by the user.

(3) The control unit confirms that there is no abnormality in the current position of the locking means (10) of the above (b) through the on state of the contact point (6) confirming the initial position of the lever (b) And controls the driving of the motor 3.

(4) The motor 3 is operated until the contact point 3 is turned on, and at this time, it detects that the position of the lever b which is the locking means 10 is in the locked state.

(5) If the door of the washing machine is not closed while the reed switch (4) is in the ON state, the contact (3-1) by the button operation of the trigger device (a) ③-2 is not connected, so the On signal of contact ③ is not transmitted to the controller. Therefore, in the embodiment of the present invention, the lid lock switch 40 having the trigger device and the self closed circuit 50 interlocks with the control unit to detect the opening of the washing machine door do.

In the meantime, the operation of the double door lock device having the lead lock position according to the preferred embodiment of the present invention will be described. The lead lock position 40 according to the present invention includes a series of washing And the signal detected by the reed switch (4) and a signal indicating that the contact point (3-1) and the contact point (3-2) are connected according to the button operation of the trigger element (a) The washing operation is automatically performed in the order of calling the laundry, washing, dewatering, and drying according to the program set in the program. At this time, even if an error occurs in the program of the control unit, the lead lock position 40 having the trigger device and the self closed circuit 50 electrically maintains the forward driving state of the motor 3, A self-closed circuit 'is provided between the first contact terminal 33 and the second contact terminal 35 and the ground terminal 31 so that a' stop of washing 'or a' The locking means 10 slides in the forward direction so that the locking protrusion 13 is inserted into the inside of the washing machine door so that the washing machine door It is possible to keep the lock function so as not to open arbitrarily.

Also, as mentioned in the fifth operation principle, when the signal of the state in which the contact point ③-1 and the contact point ③-2 are connected by the button operation of the trigger element ⓐ is not received, the control part interrupts the motor 3 The locking means 10 slides in the opposite direction while the gear 5 is rotated in the other direction so that the locking protrusion 13 can be freely opened from the inside of the washing machine door to open the door of the washing machine.

Therefore, the washing machine door double locking apparatus having the lead lock switch according to the embodiment of the present invention includes the trigger device interlocked with the existing washing machine door locking device dependent only on the preset program, and the lead lock switch Lid Lock Switch (40) is constructed so that the door lock of the washing machine is securely installed in a double manner, thereby preventing unexpected safety accident that the door is opened arbitrarily during washing.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

1: housing 3: motor
5: gear 10: locking means
13: locking projection 30: sensing means
33: first contact terminal 35: second contact terminal
Ⓐ: Contact type trigger device
40: Lid Lock Switch (Lid Lock Switch)
50: Self closed circuit
④: Reed switch (Reed S / W) ⓑ: Lever (Lever)

Claims (4)

A motor 3 and a gear 5 housed in the housing and a locking protrusion slidable forward and backward in one direction (forward direction) or the other direction (reverse direction) by the operation of the motor and the gear (30) having a first contact terminal (33) and a second contact terminal (35) and a ground terminal (31) for detecting the degree of the locking means and a locking means The washing machine door lock device according to claim 1,
The locking device comprises a contact type trigger device (a) for detecting the opening and closing of the door of the washing machine and a locking device having the locking protrusion, which are interlocked with a series of predetermined washing program, (40) having a self closed circuit (50) that allows the door of the door lock door to be opened and closed.
The method according to claim 1,
The operation principle of the lid lock switch (40) and the control unit
(1) The reed switch (Reed S / W) is closed when the upper door of the washing machine is closed through a reed switch (Reed S / W) which is an electrical switching means for sensing whether the door of the washing machine is opened or closed using a magnetic field. When the control unit detects that the door of the washing machine is closed at the time of (4)
(2) The control unit pushes the button of the trigger device ⓐ with the detection signal of the reed switch ④ and the washing machine door is closed by the user in a physical contact manner, and the contact ③-1 and the contact ③- 2 detects the connected signal state and confirms that the door is closed,
(3) Through the on state of the contact point (6) for confirming the initial position of the lever (b) as the locking means (10) of the washing machine door, the controller confirms that there is no abnormality in the current position of the lever And controls driving of the motor 3,
(4) The motor (3) operates until the contact (3) is turned on, and at this time, it detects that the position of the lever (Lever), which is the locking means (10) ,
(5) If the door of the washing machine is not closed while the reed switch (4) is on, the contact ③-1 by the button operation of the trigger element ⓐ and the contact ③-2 The ON signal of the contact point 3 is not transmitted to the controller,
A trigger device having the above-described operation principles (1) to (5) and a lead lock position (Lid Lock Switch) 40 having a self closed circuit 50 are interlocked with the control part to open Wherein the door lock mechanism is configured to detect the door lock position.
The method according to claim 1,
The lid lock switch 40 is interlocked with a series of laundry administration programs set in the control unit, and maintains the forward driving state of the motor 3 electrically even if an error occurs in the program of the control unit A 'self-closed circuit' between the first contact terminal 33 and the second contact terminal 35 and the ground terminal 31 to allow the user to perform a ' The locking means 10 slides in the forward direction so that the locking protrusion 13 is inserted into the inside of the washing machine door so that the washing machine can be opened and closed, And the lock function is continuously maintained so that the door is not opened arbitrarily.
The method according to claim 1,
The lid lock switch 40 is connected to a series of washing and drying programs set in the control unit and receives a state signal to which the contact point 3-1 and the contact point 3-2 are connected by the button operation of the trigger element a. The control unit interrupts the motor 3 to rotate the gear 5 in the other direction so that the locking means 10 slides in the opposite direction and the locking projection 13 is maintained in a state of being withdrawn from the inside of the washing machine door Wherein the door locking mechanism is provided with a lock mechanism for locking the door lock mechanism.

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