KR101234070B1 - Control panel assembly of cleaning apparatus - Google Patents

Abstract

The control panel assembly of the cleaning apparatus according to the present invention includes a tact switch mounted on a PCB and having a pressing part; A button disposed on the control panel so as to be pushed and protruding from the rack for pressing the tact switch; It is formed in any one of the rack and the pressing portion to prevent the rack and the pressing portion is shifted, and comprises a stopper that takes the other one of the rack and pressing portion, the advantage of preventing button restraint and malfunction when the button is pressed There is this.

Drum Washing Machine, Control Panel, PCB Board, Tact Switch, Rack, Stopper

Description

Control panel assembly of cleaning apparatus

1 is a cross-sectional view showing a drum washing machine according to a first embodiment of the present invention,

2 is a partially cutaway perspective view illustrating a drum washing machine according to a first embodiment of the present invention;

3 is a partial cross-sectional view showing a control panel assembly according to a first embodiment of the present invention,

4 is a partial perspective view showing the back side of the button according to the first embodiment of the present invention,

5 is an operating state diagram of the control assembly according to the first embodiment of the present invention,

6 is a cross-sectional view showing a state in which the pressing part is prevented from being separated by the stopper according to the first embodiment of the present invention.

7 is a sectional view showing main parts according to a second embodiment of the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS

50: cabinet 55: tub

60: drum 65: motor

70: water supply 75: drainage

80: control panel assembly 85: protective cover

90: control panel 95: PCB substrate

100: push part 105: tact switch

110: button 115: mounting groove

120: button head 125: return spring

130: rack 135: stopper

140: hole

The present invention relates to a control panel assembly of a cleaning apparatus, and more particularly, to a control panel assembly of a drum washing machine in which button restraints and malfunctions are prevented when a button is pressed.

In general, a drum washing machine is a device for washing laundry through a process of washing, rinsing, and dehydrating to remove contamination from clothes, bedding, etc. inside the drum rotated inside the tub using the action of detergent and water contained in the tub.

The drum washing machine includes a cabinet; A tub installed inside the cabinet; A drum installed inside the tub; A motor mounted to the rear of the tub to generate power to drive the drum; It is formed on the cabinet and comprises a control panel assembly for controlling the driving of the washing machine.

The control panel assembly may include a control panel, a PCB mounted on a rear side of the control panel and mounted with electrical components for controlling the operation of the washing machine, and a Tact switch provided on the PCB. It is configured to include a button that is mounted to the control panel so that it can be pressed.

Here, the PCB substrate is a part for controlling the operation of the washing machine, and a plurality of tact switches are provided at the front side so that a user can control a specific function. The tact switch has a pressing portion formed on an upper surface thereof, and is turned on / off whenever the pressing portion is pressed by the user, and the button is disposed in front of the pressing portion to receive the pressing force of the user.

A plurality of buttons are installed in the control panel so that the driving of the washing machine is controlled by the user.

The tact switch is turned on / off by a button head penetrating the control panel and being installed to be pressed, a return spring provided between the button head and the control panel, and a pressing force applied to the button head. And a rack having a cross section protruding in a cross shape on the rear surface of the button head.

The rack protrudes long from the back of the button head toward the pressing part of the tact switch, and when the button head is pressed by the user, the rack is moved in the direction of the tact switch to press the pressing part.

However, in the control assembly of the cleaning apparatus according to the prior art, the flow is generated in the horizontal direction when the button is pressed by the user and the push of the tact switch is inserted between the racks due to the flow of the buttons, or the rack is There is a problem of shifting to the outer side of the pressing portion.

Therefore, the button is not pressed by the tact switch or is pressed in an inclined state, so that the button is not malfunctioned or restored to the initial position, thereby causing the function of the button to be lost.

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the prior art, and an object thereof is to provide a control panel assembly of a cleaning device that prevents button restraint and malfunction when a button is pressed.

The control panel assembly of the cleaning apparatus according to the present invention for solving the above problems is a tact switch mounted on the PCB, the pressing switch; A button disposed on the control panel so as to be pushed and protruding from the rack for pressing the tact switch; It is formed on any one of the rack and the pressing portion to prevent the rack and the pressing portion is shifted, it is configured to include a stopper for the other of the rack and the pressing portion.

Here, the rack of the button is made of a '卍' cross-sectional shape, the stopper is formed to protrude from the end of the rack.

In addition, the rack of the button comprises a cross-section cross-shaped cross-section and four protrusions protruding orthogonally from the end of the cross-section, the stopper is a rib formed to protrude from the protrusions than the cross portion Is done.

Alternatively, the stopper is formed in a concave-convex shape and protrudes from any one of the rack and the pressing part.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing a drum washing machine according to a first embodiment of the present invention, Figure 2 is a partially cutaway perspective view showing a drum washing machine according to a first embodiment of the present invention, Figure 3 is a first view of the present invention FIG. 4 is a partial cross-sectional view showing a control panel assembly according to an embodiment, FIG. 4 is a partial perspective view showing a back side of a button according to a first embodiment of the present invention, and FIG. 5 is a control according to the first embodiment of the present invention. 6 is an operation state diagram of the assembly, and FIG. 6 is a cross-sectional view illustrating a state in which the pressing part is prevented from being separated by the stopper according to the first embodiment of the present invention.

1 to 6, the drum washing machine according to the present embodiment includes a cabinet 50 forming an appearance; A tub 55 installed inside the cabinet 50 to accommodate washing water; A drum 60 installed inside the tub 55 and containing laundry; A motor (65) mounted to the rear of the tub (55) to drive the drum (60); A water supply device 70 for supplying the wash water; A drainage device 75 for draining the wash water; A detergent container 75 connected to the water supply device 70 and storing a detergent; Is mounted on the upper side of the cabinet 50, and comprises a control panel assembly 80 for controlling the operation of the drum washing machine.

Here, the control panel assembly 80 is mounted on the upper surface of the cabinet 50 and the front cover is open, the control panel 90 mounted on the open front of the protective cover 85 and , A PCB mounted on the rear of the control panel 90 and mounted with electronic components for controlling the operation of the washing machine, and a tact mounted on the PCB substrate 95 and having a pressing part 100 thereon. The button 110 is configured to include a button 110 provided to be pressed on the control panel 90 so as to turn on / off the switch Tact switch 105.

Here, the button 110 is a button head 120 is installed to be pressed in the installation groove 115 of the control panel 90, the return spring 125 is installed between the button head 120 and the control panel 90. ) And a rack 130 having a cross section protruding in the shape of a mandrel on the back surface of the button head 120 such that the tact switch 105 is turned on / off by a pressing force applied to the button head 120. And a stopper 150 protruding from the rack 130 to prevent the rack 130 from being displaced from the pressing part 100 when the button 110 is pressed.

The button head 120 is inserted into the installation groove 115 so that the front surface protrudes from the control panel 90 and is inserted into the installation groove 115 when pressed by the user.

In addition, the return spring 125 is installed between the button head 120 and the installation groove 115 to elastically support the button head 120, and thus the pressing force acting on the button head 120 When released, the button 110 provides a restoring force to the button head 120 to restore the initial position.

And, the rack 130 is protruded in the direction of the tact switch 105 from the back of the button head 120, when the button head 120 is pressed by the user pressing portion 100 of the tact switch 105 Press to turn the tact switch 105 on / off.

Therefore, a hole 140 for penetrating the rack 130 is formed at the bottom of the installation groove 115.

In addition, the rack 130 is formed in a man-shaped structure, the interval between the rack 130 is formed smaller than the diameter of the pressing portion (100).

In addition, the rack 130 includes a cross section 130a having a cross-sectional shape and four protrusions 130b protruding orthogonally from an end of the cross section 130a.

In addition, the stopper 150 includes four ribs 135 extending from the protrusion 130b to protrude from the cross portion 130a.

Here, the four ribs 135 are integrally formed in the protrusion 130b.

Alternatively, the stopper may be formed of ribs protruding upward along the upper circumference of the pressing portion.

The flow of the button 110 is generated in the left and right directions when the button 110 is pressed by the presence of a clearance G having a predetermined size between the button 110 and the installation groove 115, but the Even if the rack 130 is inclined left and right due to the flow generated when it is pressed, the tact switch 105 can be turned on / off by the button 110.

Hereinafter, looking at the operation of the control panel assembly 80 of the drum washing machine according to the present invention configured as described above are as follows.

First, when a user's pressing force is transmitted to the button head 120 of the button 110, the button head 120 is inserted along the installation groove 115 formed in the control panel 90, the button head ( The rack 130 is moved together with the 120 to the tact switch 105 side of the PCB substrate 95, and when the button head 120 is pressed by a user for a predetermined value or more, the rack 130 is the tact switch 105. The pressing portion 100 is in contact with the pressing portion 100 is pressed.

As the pressing unit 100 is pressed by the rack 130 as described above, the tact switch 105 is turned on / off and the PCB substrate 95 is controlled.

At this time, when the user's pressing force applied to the button 110 is released, the button head 120 is restored to the initial position before the pressing by the restoring force of the return spring 125, the rack 130 also button It moves with the head 120 and is spaced apart from the tact switch 105.

On the other hand, when the flow occurs in the left and right directions in the process of pressing the button 110 due to the gap (G) between the button 110 and the installation groove 115, the pressing portion 100 of the tact switch 105 Although the front end of the rack 130 is in contact with the side flows left and right, but the stopper 150 is formed on the rear surface of the rack 130, even if the pressing portion 100 is deflected outward from the center of the front end of the rack 130 The rack 130 may be caught by the stopper 150 to prevent the rack 130 from being deviated from the pressing part 100 or being caught in the pressing part 100.

7 is a sectional view showing main parts according to a second embodiment of the present invention.

For reference, the same reference numerals are given to the same or similar components as those of the first embodiment, and detailed description thereof will be omitted.

As shown in FIG. 7, the stopper 150 according to the present exemplary embodiment includes an uneven part 150 extending from the bottom of the rack 130.

Alternatively, the uneven portion may be formed at an upper portion of the pressing portion.

In the control panel assembly of the cleaning apparatus according to the present embodiment, the stopper 150 is formed in an uneven shape, and even if the rack 130 is inclined, the pressing part 100 is caught by the stopper 150 and the pressing is performed. Departure from the part 100 is prevented.

As described above, the control panel assembly of the cleaning apparatus according to the present invention has been described with reference to the illustrated drawings. However, the present invention is not limited to the above-described embodiments and drawings by those skilled in the art within the technical scope of the present invention. Of course, it can be variously modified.

That is, of course, also applicable to a general washing machine or dryer.

The control panel assembly of the cleaning apparatus according to the present invention configured as described above has a stopper protrudingly formed to prevent the button from being displaced on the rear surface of the rack, so that when the button is pressed, the button is displaced or pinched at the pressing part of the tact switch. There is an advantage to be avoided.

Therefore, the control panel assembly of the cleaning device according to the present invention has the advantage that the restraint or malfunction of the button is prevented.

In addition, the control panel assembly of the cleaning apparatus according to the present invention has the advantage that when the failure of the button is eliminated as described above, the user's dissatisfaction due to the inoperability of the button is solved to improve the productability and reliability of the product.

Claims (4)

A tact switch mounted on the PCB and having a pressing part; A button disposed on the control panel so as to be pushed and protruding from the rack for pressing the tact switch; A stopper formed on one of the rack and the pressing part to prevent the rack and the pressing part from being displaced, and the other of the rack and the pressing part is caught; The stopper has a concave-convex shape, and the control panel assembly of the washing apparatus, characterized in that protruding from any one of the rack and the pressing portion. delete delete delete

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