KR101176135B1 - Changeable structure of LCD height in washing machine - Google Patents

Abstract

The present invention relates to an LCD height variable structure of a washing machine, comprising: an LCD for displaying an operating state of the washing machine, a PCB on which the LCD is mounted, a PCB housing on which the PCB is mounted, and the LCD, the PCB, and the PCB housing. In the washing machine comprising a front panel for receiving, the LCD is provided with a guide and a hook so that the height is adjusted according to the distance between the PCB and the front panel, washing machine with only one type without making several types of LCD Since it can be installed in the manufacturing cost is reduced and the manufacturing process has the advantage of simplicity.

Washing machine, LCD, PCB, PCB housing, hook, guide

Description

Changeable structure of LCD height in washing machine

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

Figure 2 is a perspective view showing the state of the LCD according to the prior art.

3 is an internal configuration diagram showing a washing machine according to the present invention.

4 is a perspective view of a control panel according to the present invention;

5 is an exploded perspective view of a control panel according to the present invention.

Figure 6 is a perspective view of the back side of the LCD according to the present invention.

Figure 7 is a schematic diagram showing an embodiment of the coupling relationship between the LCD and the PCB and the PCB housing according to the present invention.

8 is a schematic view showing another embodiment of the coupling relationship between the LCD and the PCB and the PCB housing according to the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS

40: control panel 50: front panel

80: PCB 80a: first guide hole

80a´: Second guide hole 80b: First hook hole

80b´: Second hook hole 84: LCD

85: guide 85a: first guide

85b: Second guide 87: Hooks

87a: first hook 87b: second hook

88: PCB housing 88a: evacuation groove

The present invention relates to an LCD of a washing machine, and more particularly to an LCD height variable structure of the washing machine to adjust the height according to the distance between the front panel and the PCB.

In general, a washing machine is a device for washing laundry through a process such as washing, rinsing, dehydrating, and drying to remove contamination on clothes, bedding (hereinafter referred to as laundry) by using water, detergent, and mechanical action.

1 is a perspective view of a drum washing machine equipped with a control panel according to the prior art, Figure 2 is a perspective view showing the appearance of the LCD according to the prior art.

1 and 2, a conventional drum washing machine includes a cabinet (2) forming an exterior, a tub (not shown) installed to be buffered inside the cabinet (2) to accommodate washing water, and A drum (3) rotatably installed inside the tub to accommodate laundry, and a plurality of lifters installed on an inner surface of the drum (3) to pump laundry so that the laundry can be dropped by gravity at a predetermined height; (4), a drive motor (not shown) mounted behind the tub to generate the rotational force of the drum 3, and laundry mounted on the front of the cabinet 2 and allowing laundry to be introduced and withdrawn in the center thereof. A cabinet cover 5 having a doorway 4 formed therein, a door 6 rotatably installed at the cabinet cover 5 to open and close the laundry doorway 4, and mounted on an upper portion of the front surface of the cabinet 2. The operating state of the drum washing machine (1) Or a control panel 7 in which the operation of the drum washing machine 1 is operated.

Inside the control panel 7 is housed a PCB with various LEDs and LCDs 8 and push switches.

The LCD 8 is formed on the upper surface and displays the operating state of the washing machine or the running time of the washing machine, etc., and a hook 8b formed on the bottom and seating the LCD 8 on the PCB; It is comprised including the guide 8c.

The pair of hooks 8b is formed on the left side and the right side of the LCD 8 so as to face each other.

However, the LCD of the washing machine according to the prior art configured as described above has a problem of separately manufacturing LCDs having different lengths of hooks and guides according to the distance between the rear surface of the front panel and the PCB.

The present invention was created to solve the above problems of the prior art, even if the gap between the front panel and the PCB varies depending on the product LCD of the washing machine that can be applied to different heights with only one LCD without separately manufacturing each LCD The purpose is to provide a variable height structure.

LCD height variable structure of the washing machine according to the present invention for solving the above problems, the LCD to display the operating state of the washing machine, the PCB on which the LCD is mounted, the PCB housing is mounted, the LCD and the In the washing machine comprising a front panel for receiving the PCB and the PCB housing, the LCD is characterized in that it comprises a guide and a hook to adjust the height according to the distance between the PCB and the control panel.

The guide may include a first guide having one end connected to four bottom edges of the LCD to protrude, and a second guide having one end connected to the bottom of the first guide to protrude.

The hook may include a first hook positioned opposite to the left and right sides of the LCD, and a second hook positioned opposite to the front and rear of the LCD.

In addition, the second hook is characterized in that formed longer than the first hook.

In addition, the PCB is characterized in that the first guide hole is formed to penetrate the first guide.

In addition, the PCB is characterized in that the second guide hole is formed to penetrate the second guide.

The first guide hole may be wider than the second guide hole.

The PCB may further include hook holes for penetrating the first hook and the second hook.

In addition, the PCB housing is characterized in that the evacuation groove is formed to prevent the second hook from colliding with the PCB housing when the first hook is fixed to the PCB.

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

3 is an internal configuration diagram showing a washing machine according to the present invention, Figure 4 is a perspective view of a control panel according to the present invention, Figure 5 is an exploded perspective view of the control panel according to the present invention.

In the washing machine according to the present invention, as shown in FIGS. 3 and 4, the cabinet 22 having the front and the upper and lower sides thereof is vertically disposed on the upper side of the base fan 21, and the laundry is washed between both sides of the cabinet 22. The tub 24 in which the water is contained is positioned, and the top cover 25 is disposed on the upper surface of the cabinet 22.

The tub 24 is bufferably supported by a spring 23a provided between the cabinet 22 and a damper 23b provided between the base fan 21 and the tub 24 of the tub 24. A water supply device 26 for supplying water or detergent to the inside is connected, and a drainage device 27 for draining water in the tub 24 is connected.

In addition, the tub 24 is equipped with a motor 28, the rotary shaft is protruded into the tub 24, the drum 30 is connected to the rotary shaft is accommodated for the laundry.

The drum 30 is formed with a plurality of handmade 29 so that water or detergent in the tub 24 is wetted with the laundry, and the lifter 31 for raising and dropping the received laundry to a certain height on the inner circumferential surface thereof. It is mounted to protrude.

Meanwhile, a cabinet cover in which a laundry inlet for injecting laundry into the drum 30 is formed at the center of the front side of the cabinet 22, and a door 33 for opening and closing the laundry inlet is rotatably mounted. 32 is disposed.

In addition, in the washing machine as described above, a control panel 40 is provided on the upper side of the cabinet cover 32 or the upper surface of the top cover 35 to allow the user to operate the washing machine.

The control panel 40 includes a front panel 50 having a transparent window 52, a button hole 54, and a knob hole 56, and an operation knob 43 rotatably installed in the knob hole 56. And an operation button 70 provided to be pressed in the button hole 54 of the front panel 50 and a rear side of the front panel 50 at a predetermined distance, and the LED (not shown) and the push switch 82. PCB (80) and the like installed on the PCB 80, the guide unit for supporting the LED (not shown) and guide the light of the LED (not shown) to the transparent window 52 on one side ( 92 is configured to include a formed LED supporter (90).

Here, the first transparent body 51A is inserted into each of the plurality of first opening holes 50A on one side of the front panel 50 to form a plurality of first transparent windows 52A, and on the other side, a single number of second The second transparent body 51B having an impermeable material printed thereon is provided in the opening hole 50B, and the second transparent window 52B is formed by removing or transparently forming a part of the printing.

A guide portion 92 of the LED supporter 90 is disposed behind the plurality of first transparent windows 52A, respectively, and an LCD 84 in which letters or numbers are displayed behind the second transparent window 52B. ) And an LED (not shown) are disposed.

In addition, the manipulation knob 43 is rotatably installed in the knob hole 56 of the front panel 50 to be rotated by the user, and the manipulation button 70 is pressed by the user. It is provided in the buttonhole 54 of the 50 so that it can be elastically pressed.

In addition, the PCB 80 is a substrate on which electrical components for controlling and displaying the operation of the drum washing machine are installed, and the first and second transparent windows 52A and 52B, the operation button 70 and the operation knob 43 are provided. LED (not shown), LCD 84, push switch 82, rotary switch 86 are respectively installed in a position corresponding to the LED supporter 90 is mounted so that the LED (not shown) is covered. .

The PCB 80 is mounted inside the PCB housing 88 and fixed to the rear surface of the front panel 50 by a predetermined distance from the PCB housing 88.

The push switch 82 is a tact switch that is turned on / off while being pressed by the operation button 70, and the rotary switch 86 is an encoder in which various signals are generated while being rotated by the operation knob 43.

Therefore, when the encoder is rotated by the operation knob 43 by a predetermined angle, the operation of the drum washing machine is changed, and when the push switch 82 is pressed by the operation button 70, the operation of the drum washing machine is turned on / off. Is off.

On the other hand, the operation button 70 is installed in the button hole 54 of the front panel 50 so as to be pressed, the first position in the portion where the push switch 82 is disposed behind the button hole 54 The operation button 70A is provided, and the second operation button 70B is provided at a portion where the push switch 82 is disposed at a position away from the button hole 54 by a predetermined distance.

That is, the first operation button 70A is installed to elastically move in the front and rear directions in the button hole 54, and the second operation button 70B is disposed between the button hole 54 and the push switch 82. It is installed in a cantilever shape and rotates back and forth about one end.

In addition, the on / off state of the push switch 82 can be visually recognized in front of the front panel 50, the LED (not shown) and the LED supporter 90 and the LCD on the upper surface of the PCB (80) 84 is provided.

Figure 6 is a perspective view showing the back side of the LCD according to the invention, Figure 7 is a schematic diagram showing an embodiment of the coupling relationship between the LCD and the PCB and the PCB housing according to the invention, Figure 8 is an LCD according to the invention And another embodiment of the coupling relationship between the PCB and the PCB housing is a schematic diagram.

6 to 8, the LCD 84 is provided with a guide 85 and a hook 87 so that the height is adjusted according to the distance between the PCB 80 and the front panel 50. .

The first guide 85a is formed by protruding the guide 85 into four shapes, which are connected to two corners of the four corners constituting the bottom surface of the LCD 84, thereby rotating the '??' shape. ) And a second guide 85b having one end connected to the first guide 85a and protruding in a cylindrical shape.

The hook 87 is a first hook 87a positioned opposite to the left and right sides of the LCD 84 and a second hook 87b positioned opposite to the front and rear surfaces of the LCD 84. It is composed.

In this case, the second hook 87b is formed longer than the first hook 87a.

On the other hand, when the PCB 80 is to fix the LCD 84 through the first guide 85a, the first guide hole 80a may be formed so that the first guide 85a can pass therethrough. And first and second hook holes 80b and 80b 'through which the first and second hooks 87a and 87b penetrate, and are positioned between the first guide holes 80a.

In this case, the PCB housing 88 is formed with an evacuation groove 88a to prevent the second hook 87b from colliding with the PCB housing 88.

In addition, the PCB 80 is narrower than the first guide hole 80a to allow the second guide 85b to penetrate when the LCD 84 is to be fixed through only the second guide 85b. The second guide hole 80a 'formed in a circular shape is formed in four places, and the first and second hook holes 80b and 80b' through which the first and second hooks 87a and 87b pass are formed. It is formed to be located between the guide holes (80a ').

Looking at the assembly process of the LCD and PCB and the PCB housing according to the present invention configured as described above are as follows.

First, when the LCD 84 is to be fixed to the PCB 80 by the first hook 87a, the PCB 80 may include the first guide holes 80a and the first and second hook holes 80b and 80b '. The first guide 85a penetrates the first guide hole 80a and the first and second hooks 87a and 87b are the first and second hook holes 80b and 80b '. Penetrates.

Meanwhile, the first hook 87a is locked to the rear side of the PCB 80, and the second hook 87b is evacuated in the PCB housing 88 so as not to be damaged by colliding with the PCB housing. A part of one end is accommodated in the groove | channel 88a.

In addition, when fixing the LCD 84 with the second hook 87b, the PCB 80 includes a second guide hole 80a 'and first and second hook holes 80b and 80b'. In this case, the first guide 85a does not penetrate the PCB 80, only the second guide 85b penetrates the second guide hole 80a ', and the second hook 87b is It is locked to the PCB (80).

In this case, a portion of one end of the first hook 87a is accommodated in the first hook hole 80b.

LCD height variable structure of the washing machine according to the present invention is configured as described above, the LCD, the PCB on which the LCD is mounted, the PCB housing on which the PCB is mounted, the LCD and the PCB and the LCD In the washing machine configured to include a front panel for housing the PCB housing, the LCD is provided with a guide and a hook to adjust the height according to the distance between the PCB and the front panel, so that the LCD does not produce a variety of types Since only the type can be installed in the washing machine, the manufacturing cost is reduced and the manufacturing process is simplified.

The guide may include a first guide having one end connected to four bottom edges of the LCD to protrude, and a second guide having one end connected to the bottom of the first guide to protrude. The first hook is positioned opposite to the left and right sides of the LCD, and the second hook is positioned opposite to the front and rear surfaces of the LCD, so that the LCD may be manufactured separately even if the distance between the PCB and the front panel is changed. There is an advantage that does not need to.

In addition, the second hook is formed longer than the first hook, so that when the second guide penetrates through the second guide hole formed in the PCB, the second hook may be fixed to the bottom surface of the PCB. There is an advantage of stably fixing the LCD. In addition, since the evacuation groove is formed in the PCB housing, there is an advantage in that the second hook is prevented from colliding with the PCB housing when the first hook is fixed to the PCB.

Claims (9)

In a washing machine comprising an LCD for displaying the operating state of the washing machine, a PCB on which the LCD is mounted, a PCB housing on which the PCB is mounted, and a front panel to receive the LCD, the PCB and the PCB housing, The LCD is variable height LCD structure of the washing machine, characterized in that the guide and the hook is provided so that the height is adjusted according to the gap between the PCB and the front panel. The method of claim 1, The guide may include a first guide having one end connected to four bottom edges of the LCD and protruding from the bottom of the LCD; LCD variable height structure of the washing machine, characterized in that consisting of a second guide is formed so that one end is connected to the bottom of the first guide projecting. The method of claim 1, The hook comprises: a first hook positioned opposite the left and right sides of the LCD; LCD variable height structure of the washing machine, characterized in that consisting of a second hook located opposite the front and rear of the LCD. The method of claim 3, And the second hook is formed longer than the first hook. The method of claim 1, The PCB is a variable height structure of the washing machine, characterized in that the first guide hole is formed to penetrate the first guide. The method of claim 1, The PCB is a variable height structure of the washing machine, characterized in that the second guide hole is formed to penetrate the second guide. The method according to claim 5 or 6, The first guide hole is wider than the second guide hole LCD height variable structure of the washing machine, characterized in that formed. The method according to claim 5 or 6, The PCB has an LCD height variable structure of the washing machine, characterized in that the hook hole for penetrating the first hook and the second hook is further formed. 6. The method of claim 5, And the PCB housing has an evacuation groove formed to prevent the second hook from colliding with the PCB housing when the first hook is fixedly coupled to the PCB.

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