KR20060120915A - Button mounting structure of wash machine - Google Patents

Abstract

An operating button installing structure of a washing machine is provided to improve a feeling in working with the operating button by allowing operating distance of a pressing unit to be not longer than operating distance of a contact unit, and to prevent a pressing switch from being constrained in a pressed state due to defective assembling/disassembling of the operating button. An operating button installing structure of a washing machine comprises: a control panel(70) formed with a button hole(78); a PCB(Printed Circuit Baseboard,80) disposed at the rear side of the control panel to be separated from the control panel; a pressing switch(82) installed on the front side of the PCB; an LED(Light Emitting Diode) supporter(84) installed beside the pressing switch and formed with an LED(86) turned on or off by pressing the pressing switch; and an operating button(90) disposed between the LED supporter and the control panel to be moved forward and backward and formed with a contact unit(94) protruded of a pressing unit inserted into the button hole and elongated forward the pressing switch.

Description

Button mounting structure of washing machine

1 is a perspective view of a drum washing machine equipped with a control button according to the prior art,

2 is a cross-sectional view taken along the line A-A of FIG.

3 is a view showing an incorrect assembly state of the operation button according to the prior art,

Figure 4 is a perspective view of a drum washing machine, the operation button is installed according to an embodiment of the present invention,

5 is an exploded perspective view illustrating main parts of a drum washing machine according to an embodiment of the present invention;

6 is a cross-sectional view showing the installation structure of the operation button according to an embodiment of the present invention;

7 is a cross-sectional view showing the operating state of the operation button according to an embodiment of the present invention,

8 is a cross-sectional view showing an installation structure of the operation button according to another embodiment of the present invention;

9 is a cross-sectional view showing an operating state of the operation button according to another embodiment of the present invention;

<Explanation of symbols on main parts of the drawings>

70: control panel 71: slope

72: display portion 74: operation portion

76: operation knob 78: buttonhole

80: PCB 82: push switch

84: LED supporter 85: protrusion

86: LED 88: PCB housing

90: operation button 92: pressing part

94: contact portion 100: operation button

102: pressing portion 104: contact portion

106: guide 108: guide hole

110: guide protrusion 112: transparent window

D1: operating distance of pressing part D2: operating distance of contact part

The present invention relates to an installation structure of an operation button for turning on / off a push switch of a PCB. In particular, the operation feeling is improved when the operation button is pressed, and a phenomenon in which the washing machine is malfunctioned due to the push switch being pressed by the operation button. It relates to a control button installation structure of the washing machine that can be prevented.

In general, a washing machine is a device that washes laundry by washing, rinsing, dehydrating, drying, etc. to remove contamination from clothes, bedding, etc. (hereinafter referred to as laundry) by using water, detergent, and mechanical action. .

1 is a perspective view of a drum washing machine is provided with a control button according to the prior art, Figure 2 is a cross-sectional view taken along the line AA of Figure 1, Figure 3 is a misassembled state of the operation button according to the prior art is shown It is also.

As shown in FIG. 1, a conventional drum washing machine includes a cabinet 2 forming an exterior, a tub (not shown) installed to be buffered inside the cabinet 2, and a rotatable inside the tub. And a plurality of lifters (6) installed on the inner side of the drum (4), the plurality of lifters (6) for spreading the laundry so that the laundry can be dropped by gravity at a predetermined height, and the tub; A drive motor (not shown) mounted at the rear to generate power for rotating the drum 4, and a laundry entrance 8 mounted at the front of the cabinet 2 so that laundry can be put in and taken out at the center thereof; Is installed in the cabinet cover 10, the door 12 for opening and closing the laundry entrance and exit 8, and is mounted on the front upper side of the cabinet 2, the drum washing machine Operation is displayed or That is configured to include a control panel 20.

The control panel 20 is formed with a transparent display unit 22 of which a display member is visible so that the operation state of the drum washing machine can be easily checked from the outside, and an operation button for allowing a user to operate the drum washing machine. An operation unit 24 composed of 40 and the operation knob 26 is formed.

On the other hand, the installation structure of the operation button according to the prior art is, as shown in Figure 2, the PCB 30 is disposed at a predetermined distance apart from the rear of the control panel 20, and installed on the front of the PCB 30 And a push switch 32 for controlling a specific operation of the drum washing machine, one end of which is fixed to one side of the control panel 20 by a fastening member 48, and a button hole formed on the other side of the control panel 20. The operation part 40 which is provided with the press part 42 which can be pressed-inserted in 28 is formed in the other end, and the contact part 44 for turning on / off the said push switch 32 between the one end and the other end is formed. It is configured to include.

The PCB 30 is a board on which electrical components for controlling and displaying the operation of the drum washing machine are mounted, and various switches are installed at positions corresponding to the operation unit 24 of the control panel 20, and the control panel ( A display member (not shown) consisting of an LED and an LCD is installed at a position corresponding to the display unit 22 of 20.

The push switch 32 is a tact switch that is turned on / off while being pressed by an operation button 40 installed in the control panel 20.

The operation button 40 is installed in the cantilever shape on the rear surface of the control panel 20, the end of the operation button 40 is fastened and fixed at a position spaced a predetermined distance from the button hole 28 A fastening part 46 is formed, and the other end of the operation button 40 is inserted into the button hole 28 so that the pressing part 42 is formed to protrude forward of the control panel 20.

On the back of the control panel 20 as described above, a fastening boss 29 to which the fastening portion 46 is fastened by the fastening member 48 is formed, and the fastening portion 46 of the operation button 40 is formed. A fastening hole 47 is formed at a position corresponding to the fastening boss 29.

The contact part 44 is positioned between the pressing part 42 and the fastening part 46 of the operation button 40, and protrudes a predetermined length in the direction of the push switch 32.

Therefore, the operation button 40 is rotated to the rear around the fastening portion 46 as the pressing portion 42 is pressed, the contact portion 44 is moved to the rear as the push switch 32 Is pressed.

Then, when the pressing force applied to the pressing portion 42 is released, the operation button 40 is rotated forward by its own elastic force to return to the initial position of the operation button 40.

However, the operation button installation structure of the washing machine according to the prior art is because the operation button 40 is installed in the cantilever shape on the back of the control panel 20, when pressing the operation button 40 of the pressing portion 42 There is a problem that the operating distance D2 of the contact portion 44 is smaller than the operating distance D1.

Therefore, as the distance between the contact portion 44 and the push switch 32 increases, the required operating distance D1 of the press portion 42 is greatly increased, so that the pressing portion 42 is excessively pressed. Since the push switch 32 is turned on / off, the operation feeling of the operation button 40 is lowered.

In particular, when the fastening member 48 is not completely assembled as shown in FIG. 3 or the fastening member 48 is released by external shock and vibration, the operation button from the back of the control panel 20. 40 is spaced apart rearward, the contact portion 44 of the operation button 40 is constrained in the state pressed by the push switch 32, so that the push switch 32 is always kept in the on state have.

As such, when the push switch 32 is restrained in the on state, the drum washing machine may malfunction or become inoperable.

The present invention has been made to solve the above problems, an object of the present invention is that the operating distance of the pressing portion when the operation button is not larger than the operating distance of the contact portion improves the operation feeling of the operation button, the incorrect assembly of the operation button And it provides to the operating button installation structure of the washing machine that can be prevented from being constrained in the state that the push switch is pressed due to the removal.

Operation button installation structure of the washing machine according to an embodiment of the present invention for realizing the above object is a control panel with a button hole, a PCB disposed behind the control panel to be spaced apart from the control panel a predetermined distance, and An LED supporter provided with a push switch installed on the front of the PCB, an LED supporter installed next to the push switch, and blinking as the push switch is pressed, and can be moved back and forth between the LED supporter and the control panel. It is characterized in that the pressing portion which is disposed so as to be inserted into the button hole so as to be protruded on the front surface and the contact portion extending in front of the push switch formed on one side.

The LED supporter protrudes at a predetermined height at a position opposite to the opposite side of the contact portion of the operation button so that the operation distance of the contact portion increases compared to the operation distance of the pressing portion when the operation button is pressed.

The operation button is formed of a transparent material, the LED supporter is installed on the PCB so that the LED is disposed behind the pressing portion.

In addition, the operation button installation structure of the washing machine according to another embodiment of the present invention is a control panel formed with a button hole, a PCB disposed behind the control panel so as to be spaced apart from the control panel by a predetermined distance, and installed on the front of the PCB An LED supporter having a push switch, an LED supporter installed next to the push switch, and blinking as the push switch is pressed, and a push part disposed in front of the push switch to be inserted into the button hole so as to be pushed in the front of the push switch. Protrudes to the one side between the LED supporter and the control panel is arranged to be movable in the front and rear direction, and the other side is characterized in that the control panel consisting of an operation button connected to be movable in the front and rear direction.

A guide protrusion protrudes backward from the rear surface of the control panel, and a guide hole into which the guide protrusion is inserted is formed at the other side of the operation button so as to slide along the guide protrusion.

The other side of the operation button is formed with a guide portion formed with the guide hole is extended to the guide projection side.

The control panel is formed with a transparent window next to the button hole, the LED supporter is installed behind the transparent window.

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

Figure 4 is a perspective view of a drum washing machine is provided with a control button according to an embodiment of the present invention, Figure 5 is an exploded perspective view showing the main part of the drum washing machine according to an embodiment of the present invention, Figure 6 is one of the present invention 7 is a cross-sectional view illustrating an installation structure of an operation button according to an embodiment, and FIG. 7 is a cross-sectional view illustrating an operation state of an operation button according to an embodiment of the present invention.

4 and 5, the drum washing machine according to the present embodiment includes a cabinet 52 forming an exterior, a tub (not shown) installed to be buffered inside the cabinet 52, and the A drum 54 rotatably installed inside the tub to accommodate laundry, and a plurality of lifters installed on an inner surface of the drum 54 to lift laundry to be dropped by gravity at a predetermined height; 56, a drive motor (not shown) mounted at the rear of the tub to generate power for rotating the drum 54, and laundry can be put into and withdrawn from the front of the cabinet 52 and in the center thereof. A cabinet cover 60 having a laundry entrance 58 formed therein, a door 62 rotatably installed at the cabinet cover 60 to open and close the laundry entrance 58, and an upper front side of the cabinet 52. Small drum washing machine It is configured to include a control panel 70 in which the copper is displayed or operated.

The control panel 70 is provided with a transparent display unit 72 having a display member so that the display member can be easily checked from the outside, and an operation button for allowing a user to operate the drum washing machine. An operation unit 74 composed of the 90 and the operation knob 76 is formed.

An inclined surface 71 formed to be inclined at a predetermined angle is formed at the upper end of the control panel 70 as described above, and the display unit 72 and the operation unit 74 are separately formed on the inclined surface 71.

Therefore, the display unit 72 formed on the inclined surface 71 allows the user to more easily recognize the operating state of the drum washing machine, and the user can more easily recognize the operation of the drum washing machine by the operation unit 74 formed on the inclined surface 71. Operation can be manipulated.

5 to 7, the control panel 70 having the buttonhole 78 is formed, and the control panel is spaced apart from the control panel 70 by a predetermined distance, as shown in FIGS. 5 to 7. PCB (80) disposed at the rear of the 70, the push switch 82 is installed on the front of the PCB 80 to control the specific operation of the drum washing machine, and located next to the push switch 82 The LED supporter 84 and the LED supporter 84 and the control panel 70 are installed on the front of the PCB 80 and provided with an LED 86 that flashes as the push switch 82 is pressed. The contact portion 94 is disposed so as to be movable in the front-rearward direction between the pressing portions 92 so as to be inserted into the button hole 78 so as to be pushed into the front surface, and extends in front of the push switch 82. Is configured to include an operation button 90 formed on one side.

Here, the PCB 80 is a substrate on which the electric component for controlling and displaying the operation of the drum washing machine is mounted, and various switches are installed at positions corresponding to the operation unit 74 of the control panel 70. At a position corresponding to the display unit 72 of 70, a display member made of an LED 86, an LCD, and the like is provided.

The PCB 80 is mounted inside the PCB housing 88 with the front open, and the PCB housing 88 is fixed to the rear surface of the control panel 70.

The push switch 82 is a tact switch that is pressed by an operation button 90 installed in the control panel 70, and is repeatedly turned on / off as it is pressed by the operation button 90. .

The LED supporter 84 is a member for supporting the LED 86 installed on the PCB 80 and protecting it from external shock, and is installed on the front surface of the PCB 80 on which the LED 86 is installed. The push button 82 is formed to a height at which the operation button 90 can be pressed.

The LED 86 as described above is a display member for informing the on / off state of the push switch 82 as the light flashes as the push switch 82 is turned on / off.

In addition, the operation button 90 is an injection molded material formed of a transparent material, and disposed between the LED supporter 84 and the control panel 70 so as to be movable in the front and rear directions, and the LED supporter 84 is pressed. It is disposed behind the portion 92.

The pressing unit 92 is inserted into the button hole 78 irrespective of the position of the operation button 90 so as to protrude forward of the control panel 70 to the front of the operation button 90. It is formed at a predetermined height.

The contact portion 94 is formed to extend in a predetermined length on one side of the operation button 90 to be disposed in front of the push switch 82 located next to the LED supporter 84, the operation button ( 90, the push switch 82 is formed to protrude toward the push switch 82 so that the push switch 82 can be pressed more smoothly.

On the other hand, the LED supporter 84 is the operation distance (D2) of the contact portion 94 compared to the operating distance (D1) of the pressing unit 92 when the operation button 90 is pressed so that the The protrusion 85 protrudes to a predetermined height at a position opposite to the contact portion 94 of the operation button 90.

That is, when the operation button 90 is pressed, the operation button 90 is first seated on the protrusion 85 and then inclined toward the contact portion 94 with respect to the protrusion 85, and the contact portion 94 is moved backwards to press the push switch 82.

Looking at the operation and effect of the operation button installation structure of the washing machine according to the present invention configured as described above are as follows.

First, when the user's pressing force (F) is applied to the pressing portion 92 of the operation button 90, the pressing portion 92 is inserted into the button hole 78 of the control panel 70, As the pressing unit 92 is inserted, the operation button 90 moves to the LED supporter 84 side.

At this time, the contact portion 94 of the operation button 90 is moved to the push switch 82, the distance (D1) that the pressing portion 92 is pressed into the button hole 78 is the contact portion ( 94 is equal to the distance D2 at which the push switch 82 is moved.

On the other hand, when the operation button 90 is continuously pressed to move to the LED supporter 84, the back of the operation button 90 is seated on the projection 85 of the LED supporter 84, the operation button The protrusion 85 is caught on the opposite side of the contact portion 94 from the rear surface of the 90.

When the pressing force F is continuously applied to the pressing portion 92 while being caught by the protrusion 85 as described above, the operation button 90 has the contact portion 94 around the protrusion 85. ), The push switch 82 is pressed by the contact portion 94.

Here, since the length between the protrusion 85 and the contact 94 is formed longer than the length between the protrusion 85 and the pressing portion 92, the operation button 90 is the pressing portion 92 Compared to the pressed operation distance D1, the operation distance D2 in which the contact portion 94 is moved backward becomes larger, so that even if the pressing portion 92 is not excessively pressed, the push switch is operated by the contact portion 94 82 is turned on / off.

Therefore, since the operation button 90 does not need to be excessively pressed, the operation feeling is improved when the operation button 90 is operated, and the push switch 82 is turned on / off even when the operation button 90 is pressed a little. do.

As described above, when the push switch 82 is repeatedly turned on and off by the operation button 90, the LED 86 disposed behind the push part 92 blinks and the ON of the push switch 82 is turned on. Inform the user of on / off.

The light of the LED 86 is emitted to the front of the control panel 70 through the operation button 90 and the button hole 78.

7 is a cross-sectional view showing the installation structure of the operation button according to another embodiment of the present invention, Figure 8 is a cross-sectional view showing the operating state of the operation button according to another embodiment of the present invention.

For reference, the same reference numerals are given to the same or similar components as in the exemplary embodiment of the present invention, and detailed description thereof will be omitted.

As shown in Figure 7 and 8, the installation structure of the operation button according to the present embodiment, the operation button 100 is disposed in front of the push switch 82, the front of the operation button 100, the control panel ( A pressing part 102 which is inserted into the button hole 78 of the button 70 so as to be pushed is formed to protrude, and one side of the operation button is movable between the control panel 70 and the LED supporter 84 in the front-rear direction. In addition to the arrangement, the other side is movably connected to the control panel 70 in the front-rear direction, and other configurations are configured in the same manner as the above-described embodiment.

Here, the push switch 82 is installed on the PCB 80 so as to be disposed behind the push part 102, and the push switch 82 is located at a portion of the rear surface of the operation button 100 that is opposite to the push part 102. The contact part 104 which presses the switch 82 is formed.

The contact part 104 is formed to protrude toward the push switch 82 so that the push switch 82 can be pressed more smoothly when the operation button 100 is pressed.

In addition, the control panel 70 is transparent to a portion facing the LED 86 so that the LED 86 light of the LED supporter 84 disposed next to the push switch 82 can be transmitted to the outside. Window 112 is formed.

That is, the transparent window 112 is formed at a position spaced a predetermined distance next to the button hole 78.

On the other hand, the other side of the operation button 100 is connected to the back of the control panel 70 to be slidably moved in the front and rear direction, the rear surface of the control panel 70, the guide projection 110 is formed to protrude rearward And, the other side of the operation button 100 is inserted into the guide protrusion 110 is formed with a guide portion 06 so as to slide forward and backward along the guide protrusion 110.

The guide portion 06 extends to the guide protrusion 110 on the other side of the operation button 100 and is formed with a guide hole 108 through which the guide protrusion 110 is inserted.

Therefore, when the operation button 100 is pressed, the operation distances D1 and D2 of the pressing unit 102 and the contact unit 104 are the same, and the operation button 100 is the guide protrusion 110. The guide hole 108 guides the movement in the front and rear directions and prevents the flow in the up, down, left and right directions.

The operation button installation structure of the washing machine according to the present invention configured as described above is configured to have the same operation distance when the pressing portion and the contact portion are pressed when the operation button is pressed, so that it is not necessary to press the pressing portion excessively so that the operation feeling of the operation button is improved. There is an advantage.

In addition, since the operation button is not fixed to the control panel by the fastening member, the fastening member is incorrectly assembled or detached as in the prior art, thereby preventing the phenomenon in which the push switch is pressed by the operation button is pressed. Malfunctions caused by the washing machine also have the advantage of being prevented in advance.

In addition, an embodiment of the present invention is the operation button is disposed between the LED supporter and the control panel to move in the front and rear direction, the contact portion is formed to extend in front of the push switch and the LED supporter is the contact portion of the operation button Protruding portion is formed in a position opposite to the opposite side, the operation distance of the contact portion is increased compared to the operation distance of the pressing portion when the operation button is pressed, there is an advantage that the response performance of the operation button is improved.

In addition, according to another embodiment of the present invention, one side of the operation button is disposed between the LED supporter and the control panel so as to be movable in the front and rear direction, and the guide part provided with a guide hole is formed on the other side of the operation button to extend the control. Since the sliding movement along the guide protrusion of the panel, the front and rear movement of the operation button is guided by the guide protrusion and the guide hole, there is an advantage that the up and down, left and right flow of the operation button is prevented.

Claims (7)

A control panel having a buttonhole; A PCB disposed behind the control panel to be spaced apart from the control panel by a predetermined distance; A push switch installed at the front of the PCB; An LED supporter installed next to the push switch and provided with an LED blinking as the push switch is pressed; Between the LED supporter and the control panel is arranged to be movable in the front and rear direction, the pressing portion is inserted into the button hole to be pushed protruding on the front surface consisting of an operation button formed on one side of the contact portion extending in front of the push switch Operation button installation structure of the washing machine characterized by the above-mentioned. The method of claim 1, The LED supporter is a washing machine, characterized in that the projection protrudes to a predetermined height at a position opposite to the opposite side of the contact portion of the operation button to increase the operation distance of the contact portion compared to the operation distance of the pressing portion when the operation button is pressed Control button installation structure. The method according to claim 1 or 2, The operation button is formed of a transparent material, the LED supporter operation button installation structure of the washing machine, characterized in that installed on the PCB so that the LED is arranged behind the pressing portion. A control panel having a buttonhole; A PCB disposed behind the control panel to be spaced apart from the control panel by a predetermined distance; A push switch installed at the front of the PCB; An LED supporter installed next to the push switch and provided with an LED blinking as the push switch is pressed; The pressing part which is disposed in front of the push switch and is inserted into the button hole so as to be pushed into the button hole protrudes on the front side, and one side of the LED supporter and the control panel is movable in the front-rear direction, and the other side of the control panel is moved back and forth. Operation button installation structure of the washing machine, characterized in that consisting of operation buttons connected to be movable in the direction. The method of claim 4, wherein Guide buttons protruding rearward from the rear surface of the control panel, and guide holes through which the guide protrusions are inserted to slide along the guide protrusions on the other side of the operation button. Installation structure. The method of claim 5, The operation button installation structure of the washing machine, characterized in that the guide portion formed on the other side of the operation button is extended to the guide projection side. The method according to any one of claims 4 to 6, The control panel is a transparent window is formed next to the button hole, the LED supporter operation button installation structure of the washing machine, characterized in that installed in the rear of the transparent window.

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