KR20020042237A - structure of controller made of rubber material in drum type washing machine - Google Patents

Abstract

PURPOSE: A structure of a louver type controller for a drum washer is provided to extend life of a control panel and a button by improving the structure of a controller part. CONSTITUTION: A structure of a louver type controller for a drum washer includes a rubber control panel(20), a panel supporter(30), a PCB substrate(40), and a substrate guide(50). The rubber control panel is formed integrally with a number of buttons elastically mounted at proper places and has a transparent window. The panel supporter is connected to a rear surface of the control panel and has an insertion hole for inserting the button and an open surface formed at the corresponding part of the transparent window. The PCB substrate has a display element at the open surface and a tact switch disposed at the corresponding part of the button of the control panel. The substrate guide is connected to the body and supports the panel supporter and the PCB substrate.

Description

Louver type controller part for drum washing machine {structure of controller made of rubber material in drum type washing machine}

The present invention relates to a drum washing machine, and more particularly, to a drum washing machine type controller unit structure in which a control panel is formed of rubber material in a controller unit for providing washing information and inducing a user's operation.

In general, a washing machine is a device that removes dirt or dirty substances from laundry by chemical decomposition and mechanical impact. Among them, a drum washing machine has a higher overall height than a pulsator washing machine that rotates with its inner tank standing. Not only can it be reduced, but the washing capacity can be further increased, and problems such as porosity are rarely generated, and thus the demand is increasing.

Hereinafter, the configuration of a general drum washing machine will be described in detail with reference to the accompanying drawings.

Hereinafter, the configuration of a general drum washing machine will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing the configuration of a general drum washing machine, a drum washing machine having a tub 2 supported by a damper 8 and a spring 7 in a main body 1, and a cylindrical washing tub rotatably installed in the tub. (3) and the driving unit axially connected to the washing tank.

The drive unit is composed of a rotor (4) and a stator (5) on the back of the tub (2), the washing shaft that rotates with the washing tank to transfer the driving force of the rotor directly to the washing tank (3) without a pulley or belt ( 6) is directly connected to the rotor 4.

The front of the main body 1 is provided with a door 9 at a predetermined position to correspond to the opening of the washing tub 3, the upper part of the door receives the user's operation command to perform this and to control the overall operation of the washing machine The controller unit 10 is provided.

The drum washing machine configured as described above has the rotational force of the rotor 4 transmitted to the washing tank 3 through the washing shaft 6, and the laundry is lifted by the baffle 3a while the washing tank is rotated, and then down by gravity. As you fall, you will perform a laundry administration.

Meanwhile, the detailed structure of the controller will be described with reference to FIGS. 2 and 3.

2 is a cross-sectional view showing the structure of the controller unit, and FIG. 3 is a plan view showing the buttons of the controller unit. The controller unit 10 provides a control panel 11 and various types of information to a user on the rear of the control panel. The PCB 16 having the display unit 16 and various elements for controlling the operation of the washing machine and the control panel 11 and the PCB 15 are fixed to the main body, and the PCB is fixed. It consists of a board | substrate guide 18 which protects a board | substrate.

In addition, the front panel of the control panel 11 is provided with a panel sheet 14 for appearance quality and butt operation, and a plurality of buttons 12 for inducing various operations of the user are elastically installed at the bottom thereof. The substrate 15 is provided with a tact switch TACT S / W 17 at a position opposite to the button 12.

On the other hand, the button 12 provided in the control panel 11 may be separately injected and elastically installed by a spring (not shown) or the like, or may be integrally formed with the panel in a shape having elasticity.

For example, as shown in FIG. 3, the button 12 is integrated in the control panel, and has a snail structure provided with grooves at regular intervals around the button so that the button 12 can be restored when the button is pressed.

The controller unit configured as described above inserts the PCB 15 into the substrate guide 18 and then joins it to the boss 13 formed in the control panel 11 and fastens it with a screw. (14) is assembled by double-sided tape.

However, the controller portion as described above has the following problems.

First of all, the control panel 11 mainly uses an ABS material having excellent gloss as an exterior part, and thus, when the tapping screw is fastened to assemble the substrate guide 18 to the boss 13 of the panel, the boss Significant stress occurs at. As a result, the boss may not overcome the stress due to the high temperature generated by the heater during the washing operation during the washing operation, and the boss may be damaged by the vibration during the dehydration operation.

In addition, in the case of the button 12 integrally formed in the control panel, grooves are formed around the buttons to have elastic force, and thus often the case of failure to withstand elasticity due to prolonged use or operation by excessive force has often occurred.

In addition, the control panel 11 and the button 12 are made of a hard plastic material to provide aesthetically stiff feeling.

The present invention has been made to solve the above problems, and an object of the present invention is to improve the structure of the controller portion to extend the life of the control panel and buttons, as well as to provide a beautiful appearance for a drum washing machine louver type controller. To provide a structure.

1 is a cross-sectional view showing the configuration of a general drum washing machine

2 is a cross-sectional view showing a controller unit structure for a conventional drum washing machine

3 is a plan view showing a button of a conventional control panel

Figure 4a is a perspective view showing the front of the louver type control panel according to the present invention

Figure 4b is a perspective view showing the back of the louver type control panel according to the present invention

5 is a plan view showing a panel supporter according to the present invention.

6 is a cross-sectional view showing the structure of a louver type controller for a drum washing machine according to the present invention.

Explanation of symbols for main parts of the drawings

1: main body 20: control panel

30 panel guide 40 PCB substrate

50: substrate guide

In order to achieve the above object, the louver type controller unit structure for a drum washing machine according to the present invention is formed integrally with a plurality of buttons elastically installed in place, and a control panel made of a rubber material in which a transparent window is formed, and coupled to the back of the control panel. And a panel supporter having an opening surface formed at an insertion hole into which the button is inserted and a portion corresponding to the transparent window, and a display element on the open surface of the panel supporter, and a tact switch at a portion corresponding to the button of the control panel. And a PCB guide coupled to the main body to support the panel supporter and the PCB.

At this time, the button protrudes toward the rear surface and selectively contact with the tact switch, and the space around the protrusion is formed thinner and concave than the other portion of the space to give elasticity.

In addition, a seating groove in which the edge of the transparent window is inserted is formed at a portion where the transparent window of the control panel is joined.

On the other hand, in order to combine the control panel and the panel supporter, a plurality of locking projections are formed at the rear outer portion of the control panel so as to converge toward the end from the stepped middle point, and the panel supporter is fixed by inserting the converging portion of the locking projection. Gull grooves are formed.

A plurality of coupling guides protrude along the rear edges of the control panel, and guide grooves are formed along the edges of the panel supporter to form the coupling guides.

Further, in order to couple the panel supporter to the PCB substrate, a plurality of hooks extending from the end of the panel supporter to be inserted into the PCB substrate are extended.

Finally, the control panel is made of silicone rubber for high elasticity of the button and beautiful appearance.

Hereinafter, the louver type controller unit structure for a drum washing machine according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

First, Figure 4a is a perspective view showing the front of the louver type control panel according to the present invention, Figure 4b is a perspective view showing the back of the louver type control panel according to the present invention, Figure 5 is a plan view showing a panel supporter according to the present invention Figure 6 is a cross-sectional view showing a state in which the louver type controller unit for a drum washing machine according to the present invention.

On the other hand, the configuration of a general drum washing machine will be described above, and only the structure of the controller unit will be described later.

4A and 4B, the control panel 20 according to the preferred embodiment of the present invention has a surface 22 open at a predetermined position to expose a display element of a PCB substrate, for example, an LCD element or an LED element. ), And a plurality of buttons 21 for inducing a user's operation are injected into a soft rubber material so as to be integrally formed.

At this time, a protrusion 21a is formed on the rear surface of the control panel 20 so as to form the button 21 and is in contact with the tact switch TACT S / W of the PCB. At the periphery, a space portion 21b is formed which is concave in an elliptical shape. That is, the space part 21b is to provide a restoring force after pressing a button to a part which does not touch the panel supporter when the panel supporter is coupled with the panel supporter. Therefore, the space 21b is preferably formed to be thinner than other portions of the control panel 20.

In addition, a seating groove 23 is formed along the edge of the control panel so as to insert a transparent window protecting the display device.

On the other hand, the back of the control panel 20 is formed with a locking projection 25 along the outer portion to couple the control panel to the panel supporter. The locking protrusion 25 is protruded by a predetermined length toward the panel supporter, and a conical converging portion 25a is formed in which the cross-sectional area decreases from the stepped intermediate point to the end toward the end.

In addition, a plurality of quadrangular coupling guides 27 are formed at the rear edges of the control panel 20 to guide the coupling positions of the control panel and the panel supporter.

As described above, the control panel 20 according to the present invention is integrally molded with a button 21, the locking projection 25 and the coupling guide 27 made of a resilient rubber material. At this time, in order to improve the restoring force of the button 21 and to provide a soft feeling appearance, the control panel is preferably injection molded of silicone rubber.

As shown in FIG. 5, the panel supporter 30 according to the present invention has a plurality of button insertion holes 31 coupled to the rear surface of the control panel and having the protrusions inserted at positions corresponding to the protrusions of the buttons. In addition to being formed, an open surface 32 on which the display element is formed is formed at a position corresponding to the open surface of the control panel and the display element of the PCB substrate.

In addition, a plurality of locking grooves 35 are formed at an outer portion of the panel supporter 30 to insert and fix the converging portions of the locking protrusions at positions corresponding to the locking protrusions of the control panel. A plurality of guide grooves 37 are formed to mate with the coupling guide.

On the other hand, a plurality of hooks 33 are extended to a predetermined position on the rear surface of the panel supporter 30 so that the panel supporter can be coupled to the PCB substrate, and a locking jaw is formed at the end of the hook.

When the control panel 20 and the panel supporter 30 configured as described above are coupled to the PCB and the substrate guide will be described.

As shown in FIG. 6, first, the transparent window 29 is inserted into the seating groove 23 of the control panel 20, and then the coupling guide 27 of the control panel is combined with the guide groove of the panel supporter. While engaging the control projection of the control panel to the locking groove of the panel supporter. As described above, when the control panel 20 and the panel supporter 30 are coupled, the button protrusion 21a and the transparent window 29 of the control panel are inserted into the button insertion hole 31 of the panel supporter 30. And the open face coincide with each other.

Subsequently, the PCB substrate 40 is coupled to the substrate guide 50, and then the panel supporter 30 to which the control panel 20 is coupled is coupled to the PCB substrate using the hook 33. Also in this case, the display element 41 on the PCB substrate 40 coincides with the open surface of the panel supporter 30.

Finally, one end of the substrate guide 50 is coupled to the beam 62 welded to the main body 1, and the other end of the substrate guide is fastened to the nut 64 welded to the main body with a bolt 66. This completes the assembly.

The structure of the louver type controller for a drum washing machine according to the present invention forms a control panel with a soft and elastic rubber material and simultaneously integrates a button and supports it with a rigid panel supporter, thereby combining the PCB with the PCB guide and the conventional ABS. It is possible to prevent breakage due to high temperature or vibration of the assembly portion generated while assembling the control panel of the material to the substrate guide.

In addition, as the button is operated using the elasticity of the rubber material, the elastic force is maintained longer than that of the conventional hard material button, thereby prolonging the service life.

In addition, when the button is pressed, the user may be provided with a soft feel and a beautiful appearance as a whole.

Claims (7)

A control panel made of rubber material formed integrally with a plurality of buttons elastically installed in place and having a transparent window; A panel supporter coupled to a rear surface of the control panel and having an opening surface formed at an insertion hole into which the button is inserted and corresponding to the transparent window; A PCB having a display element coupled to an open surface of the panel supporter and a tact switch provided at a portion corresponding to a button of the control panel; Louver type controller for the drum washing machine comprising a substrate guide coupled to the main body for supporting the panel supporter and the PCB substrate. The method of claim 1, The button is: A protrusion projecting toward the rear surface and selectively contacting the tact switch; Louver type controller structure for a drum washing machine comprising a space portion that is formed thinner and concave than the other portion around the protrusion to give elasticity. The method of claim 1, A louver type controller unit structure for a drum washing machine in which a seating groove into which the edge of the transparent window is inserted is formed at a portion where the transparent window of the control panel is combined. The method of claim 1, The rear outer portion of the control panel has a plurality of locking projections are formed so as to converge from the stepped middle point toward the end, and the panel supporter is a louver type controller for a drum washing machine having a hook groove to which the converging portion of the locking projection is inserted and fixed. Wealth structure. The method of claim 1, A plurality of coupling guides protrude along the rear edges of the control panel, and a louver type controller unit structure for a drum washing machine having guide grooves formed along the edges of the panel supporter. The method of claim 1, A louver type controller unit structure for a drum washing machine, wherein a plurality of hooks of which an end is inserted into the PCB substrate are extended at a predetermined rear surface of the panel supporter. The method of claim 1, The control panel has a louver type controller unit structure for a drum washing machine made of silicone rubber.