JP2013085730A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing machine capable of preventing a dampproofing material from attaching the surface of a liquid crystal display and penetrating into the liquid crystal display when the liquid crystal display is sealed with the dampproofing material to secure the visibility.SOLUTION: A washing machine comprises: a washing tub containing laundry; an outer tank encompassing the washing tub; a control unit for selecting the operation mode; a liquid crystal display for displaying the operation mode selected by the control unit, the liquid crystal display comprising a backlight case with a backlight source and a liquid crystal device disposed at the upper side of the backlight case; and a dampproofing material for sealing the bottom part of the backlight case. The backlight case has a ridge at the corner of the vertical wall to prevent the dampproofing material from filling up when it is injected.

Description

  The present invention relates to a washing machine for washing clothes and the like.

  When there are multiple operation modes such as “washing / drying” and “drying” in addition to “laundry”, the light emitting element is arranged near the pressing operation section for selecting the operation mode. It is possible to visually recognize which operation mode is set. In addition, light emitting elements such as LEDs and 7-segment LEDs are incorporated to display the operation details such as the operating state, remaining time, number of rinses, dehydration time, and other time settings. Is built into a washing machine and a washing dryer.

  However, a display device for a washing machine or a washing / drying machine that is used in an environment with much moisture or moisture is provided in a space sealed with an operation panel as a moisture-proof structure. Furthermore, in order to prevent the dew condensation generated due to temperature change or the like from contacting the control board, it is sealed with a moisture-proof material such as urethane resin. In particular, since the liquid crystal display is a component that is vulnerable to moisture, a structure that prevents moisture from entering the surface and the inside thereof is required.

  In Patent Document 1, a molded product placed around a liquid crystal display is provided with a packing, and an operation panel with a rib is placed over the molded product and the rib sandwiches the packing to form a sealed space. doing. The lower part of the liquid crystal display is sealed with a moisture-proof material.

  In Patent Document 2, a liquid crystal display is provided in a transparent case, and the lower portion of the transparent case is sealed with a moisture-proof material, thereby preventing moisture from entering the surface and the inside of the liquid crystal display.

  In Patent Document 3, the liquid crystal cover is provided with a two-stage structure including a liquid crystal cover provided with a packing and a liquid crystal case that is housed in the liquid crystal cover and into which a liquid crystal element is inserted, and the upper surface is sealed with a packing and an operation panel. Further, only the opening of the liquid crystal cover may be sealed with a moisture-proof material at the lower part of the liquid crystal element.

JP 2011-030910 A JP 2009-189678 A JP 2008-183050 A

  In the case of the liquid crystal display described in Patent Document 1, when the distance between the liquid crystal display and the molded product having the packing is close, the moisture-proof material crawls between the liquid crystal display and the molded product due to a capillary phenomenon. There is a possibility of adhering to the surface of the liquid crystal display. Moreover, in a liquid crystal display, when a movable claw is provided in a backlight case having a backlight light source and the liquid crystal element is fixed by the movable claw, cuts are generated on both sides of the movable claw on molding. From this incision, the moisture-proof material scooped up by the capillary phenomenon may enter the liquid crystal element, resulting in a display defect. Further, the moisture-proof material crawls up from each corner inside the backlight case due to a capillary phenomenon, and may enter an opening connected to the inside of the liquid crystal display device, resulting in a display defect.

  Also in the case of the liquid crystal display described in Patent Document 2, when the distance between the liquid crystal display and the transparent case is close, the moisture-proof material may creep up.

  In the case of the liquid crystal display described in Patent Document 3, since the liquid crystal element is attached to the liquid crystal case and stored in the liquid crystal cover, the risk of the moisture-proof material entering the liquid crystal element itself can be reduced, but the structure is complicated. As the number of parts increases, the assemblability deteriorates.

  An object of the present invention is to provide a washing machine that prevents the moisture-proof material from adhering to the surface of the liquid crystal display and the intrusion into the liquid-crystal display device when the liquid-crystal display device is sealed with a moisture-proof material, thereby ensuring visibility.

  In order to achieve the above object, the present invention provides a washing tub for storing laundry, an outer tub containing the washing tub, an operation unit for selecting operation details, and an operation content selected by the operation unit. The liquid crystal display unit includes a backlight case having a backlight light source and a liquid crystal element provided on the upper surface side of the backlight case, and the lower part of the backlight case is moisture-proof. In the washing machine sealed with a material, a raised portion is provided at a corner of the vertical wall surface of the backlight case to prevent the moisture-proof material from creeping up when the moisture-proof material is injected.

  ADVANTAGE OF THE INVENTION According to this invention, the washing machine which can prevent adhesion to a liquid crystal display surface of a moisture proof material and internal penetration, and can ensure visibility can be provided.

It is a perspective view of the washing and drying machine which shows a 1st example. It is a front view of the operation / display part of the washing / drying machine of FIG. FIG. 3 is a development view of the operation / display unit of FIG. 2. FIG. 3 is a schematic cross-sectional view of an operation / display unit in FIG. 2. It is a figure which shows the mode of the moisture-proof material scooping up at the time of moisture-proof material injection | pouring in the liquid crystal display of FIG. It is a figure which shows the creeping-up prevention method of the moisture-proof material in 1st Example. It is a figure which shows the creeping-up prevention method of the moisture-proof material in 2nd Example. It is a figure which shows the creeping-up prevention method of the moisture-proof material in 3rd Example. It is a figure which shows the creeping-up prevention method of the moisture-proof material in 4th Example. It is a figure which shows the creeping-up prevention method of the moisture-proof material in 5th Example. It is a figure which shows the creeping-up prevention method of the moisture-proof material in 6th Example. It is a figure which shows the mode of the internal penetration of the moisture-proof material in the liquid crystal display of FIG. It is a figure which shows the prevention method of the penetration | invasion of the moisture proof material in 7th Example. It is a figure which shows the creeping-up of the moisture proof material from the inner corner | corner in the liquid crystal display of FIG. It is a figure which shows the creeping-up of the moisture proof material from the electrode part in the liquid crystal display of FIG. It is a figure which shows the creeping-up prevention method of the moisture-proof material from the inner corner in 8th Example. It is a figure which shows the countermeasure against the creeping-up of the moisture proof material of the electrode part in 8th Example. It is a figure which shows the creeping-up prevention method of the moisture-proof material from the inner corner in 9th Example. It is a figure which shows the climbing countermeasure of the moisture proof material of the electrode part in 9th Example.

  Hereinafter, examples according to embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view of a washing / drying machine showing a first embodiment of the present invention. Legs 2 into which rubber is inserted are arranged at the four corners at the bottom of the base 1. In addition, an outer frame 3 configured by combining a steel plate and a resin molded product is placed on the upper portion of the base 1. A door 4 for taking in and out the laundry is provided in front of the outer frame 3 and is configured to be opened and closed by a push button 5. A detergent tray 6 and a drying filter 7 are attached to the left and right of the upper surface of the outer frame 3. An operation / display unit 8 is provided between them. Below the drying filter 7, an “ON” switch 9 for turning on the power and an “OFF” switch 10 for turning off the power are provided. Further, although not shown, the outer frame 3 has a washing tub for storing laundry and an outer tub for containing the washing tub.

  FIG. 2 is a front view of the operation / display unit 8 of the washing / drying machine of FIG. The operation / display unit 8 includes a pressing operation unit 11 for selecting the operation content, an operation content display unit 12 for displaying the operation content selected by the pressing operation unit 11, and an operation panel 13 assembled with them. . The operation content display unit 12 includes a print sheet 14 on which each operation content is printed. The print sheet 14 is printed with operation details such as an operation course. The print sheet 14 is provided with a light emitting element 19 at a lower portion, and illuminates the corresponding display content by transmitting light from the light emitting element 19.

  Here, “operation content” in the present embodiment indicates “operation mode”, “operation course”, and “detailed setting”. The “operation mode” is selected by a button from among “washing”, “washing drying”, and “drying”. The “driving course” includes courses such as “standard”, “careful”, and “blanket”, and the “driving course” that can be selected differs depending on the type of “driving mode”. “Detailed setting” is a condition that can be adjusted for each process such as washing, rinsing, dehydration, and drying, and is “washing time”, “number of times of rinsing”, “dehydration time”, and “drying time”. When the power is turned on, the “operation mode”, “operation course”, and “detailed setting” used last time are displayed on the operation content display unit 12.

  FIG. 3 is a development view of the operation / display unit 8 shown in FIG. As shown in FIG. 3, the operation / display unit 8 includes a controller 15 below the operation panel 13 in addition to the above-described pressing operation unit 11, operation content display unit 12, and operation panel 13. The controller 15 includes a substrate case 16, a substrate 17 disposed on the substrate case 16, and an operation / display guide 18 disposed on the substrate 17.

  FIG. 4 is a schematic cross-sectional view of the operation / display unit 8 shown in FIG. 2, and will be described in more detail with reference to FIG. The operation content display unit 12 of this embodiment is provided on the back side of the print sheet 14 installed on the upper part of the operation / display guide 18 and the printing of each operation content of the print sheet 14 and is selected by the pressing operation unit 11. The light emitting element 19 which shines the printing of the operation content performed is provided. An operation switch 20 is disposed below the pressing operation unit 11. Further, below the print sheet 14, a liquid crystal display 21 that displays contents such as “detailed settings” is provided. The liquid crystal display 21 includes a liquid crystal element 22 including a liquid crystal, an electrode, an alignment film, a polarizing plate, and the like, and a backlight case 23 including a backlight light source. A recess is formed on the upper surface side of the backlight case 23 to support the liquid crystal element 22, and a space is provided inside the lower portion of the backlight case 23.

  Since the liquid crystal display 21 is vulnerable to moisture, a packing 24 is provided on the operation / display guide 18 so as to surround the outer periphery of the liquid crystal display 21, and a sealing rib 25 provided on the operation panel 13 is sandwiched from above. Thus, the surface of the liquid crystal display 21 is sealed. In addition, a space below the backlight case 23 in the controller 15 is covered with a moisture-proof material 26, and a lower portion of the liquid crystal display 21 is sealed with the moisture-proof material 26.

  FIG. 5 shows how the moisture-proof material 26 creeps up from the outer wall of the liquid crystal display 21 in this configuration. When the moisture-proof material 26 is injected from the injection location 27 of the moisture-proof material 26, when the liquid crystal display 21 and the operation / display guide 18 are close to each other, a creeping 28 of the moisture-proof material 26 due to capillary action occurs, and the liquid crystal display 21 When the moisture-proof material 26 adheres to the surface of the liquid crystal element 22, a display defect occurs.

  FIG. 6 shows a method for preventing the moisture-proof material 26 from creeping up due to the capillary phenomenon in this embodiment. A rib 29 is provided on the side surface of the backlight case 23 of the liquid crystal display 21, and a convex portion is formed in a space sandwiched between the side wall of the backlight case 23 and the side wall of the operation / display guide 18. Even when the display guide 18 is close to the display guide 18, creeping of the moisture-proof material 26 due to capillary action can be suppressed. As a result, the liquid crystal display 21 and the operation / display guide 18 can be brought close to each other without causing a display defect due to the moisture-proof material 26, which contributes to space saving of the washing / drying machine.

  FIG. 7 shows a second embodiment of the present invention, where the moisture-proof material 26 scoops up due to a capillary phenomenon, and the moisture-proof material 26 is applied to the liquid crystal element 22 even when it reaches the upper surface of the liquid crystal display 21. This represents a method for preventing adhesion. By providing the step shape 30 on the upper surface around the backlight case 23, the distance from the operation / display guide 18 is increased above the step shape 30, the capillary phenomenon is suppressed, and the moisture-proof material 26 extends to the liquid crystal element 22. Never reach.

  FIG. 8 shows a third embodiment of the present invention. Even when the moisture-proof material 26 scoops up 28 due to a capillary phenomenon and reaches the upper surface of the liquid crystal display 21, the moisture-proof material 26 is applied to the liquid crystal element 22. FIG. This represents a method for preventing adhesion. By providing the inclined shape 31 on the upper surface of the backlight case 23, the distance from the operation / display guide 18 is increased above the inclined shape 31, the capillary phenomenon is suppressed, and the moisture-proof material 26 reaches the liquid crystal element 22. There is nothing.

  FIG. 9 shows a fourth embodiment of the present invention. Even when the moisture-proof material 26 creeps up 28 due to capillary action and reaches the upper surface of the liquid crystal display 21, the moisture-proof material 26 is applied to the liquid crystal element 22. This represents a method for preventing adhesion. By providing the recessed shape 32 on the upper surface of the backlight case 23, even if the moisture-proof material 26 reaches the upper surface, the moisture-proof material 26 does not reach the liquid crystal element 22 by being dammed by the recessed shape 32.

  Further, as in the fifth embodiment shown in FIG. 10, by providing the backlight case lower portion 33 on the inner side from the upper portion, the creeping 28 of the moisture-proof material 26 due to the capillary phenomenon can be suppressed, and the moisture-proof material up to the upper surface. Even when 26 reaches, the moisture-proof material is dammed up by the depression 32, and the moisture-proof material 26 does not reach the liquid crystal element 22. In this way, by providing irregularities on the upper surface on the outer peripheral side of the backlight case 23 located around the liquid crystal element 22, the moisture-proof material 26 is prevented from creeping up.

  Further, as in the sixth embodiment shown in FIG. 11, by providing the packing 24 in the hollow shape 32 provided in the backlight case 23, it is possible to form a sealed structure with only the liquid crystal display 21 and the operation panel 13. it can.

  FIG. 12 shows the structure of the liquid crystal display 21 when the upper end of the backlight case 23 has a movable claw 34 for fixing the liquid crystal element 22. In this case, when the creeping-up 28 of the moisture-proof material 26 due to the capillary phenomenon occurs, the moisture-proof material 26 is inside the liquid crystal element 22 or between the liquid crystal element 22 and the backlight case 23 from the cuts 35 formed on both sides of the movable claw 34. May intrude and cause display defects.

  FIG. 13 shows a seventh embodiment of the present invention and represents a method for preventing the moisture-proof material 26 from entering the liquid crystal display 21 through the cuts 35 on both sides of the movable claw 34. The intrusion of the moisture-proof material 26 is prevented by attaching a cover 36 so as to cover the outside of the movable claw 34 and the cut 35 provided in the backlight case 23. The cover 36 needs to be selected according to the use environment. Needless to say, when the claw for fixing the liquid crystal element 22 is a fixing claw and the notch 35 is not provided, the moisture-proof material 26 does not enter and the cover 36 is unnecessary.

  FIG. 14 shows a state in which the moisture-proof material 26 crawls up from an inner corner corner 37 of the backlight case 23 by a capillary phenomenon. As described above, in the portion surrounded by the vertical wall surface of the backlight case 23 and the corner portion is formed, the moisture-proof material 26 crawls up due to the capillary phenomenon, and enters from the opening 38 connected to the inside of the liquid crystal display 21. Display failure may occur.

  Further, as shown in FIG. 15, in the backlight case 23, the moisture-proof material 26 crawls up by the capillary phenomenon at the corner 40 of the electrode 39 portion connected to the liquid crystal element 22, and enters the liquid crystal display 21 to display. It can cause problems.

  FIG. 16 shows an eighth embodiment of the present invention and represents a method for preventing the moisture-proof material 26 from creeping up from the inner corner 37. By making the corner portion surrounded by the vertical wall surface of the backlight case 23 into the R shape 41, the capillary phenomenon is suppressed and the creeping of the moisture-proof material 26 can be prevented. Further, not only in the vertical direction, but also in the horizontal internal corners, it is possible to suppress the spread of the moisture-proof material 26 in the horizontal direction by providing raised portions at the corners to form curved surfaces.

  Also in FIG. 17, the corner portion surrounded by the vertical wall surface outside the backlight case 23 is formed into an R shape 42 to prevent the moisture-proof material 26 from creeping up when the moisture-proof material 26 is injected.

  FIG. 18 shows a ninth embodiment of the present invention and represents a method for preventing the moisture-proof material 26 from creeping up from the inner corner 37. By providing the ribs 43 at the inner corners 37 of the backlight case 23, it is possible to prevent the moisture-proof material 26 from creeping up due to the capillary phenomenon.

  Also in FIG. 19, by providing the ribs 44 at the corners 40 surrounded by the vertical wall surface outside the backlight case 23, it is possible to prevent the moisture-proof material 26 from creeping up due to the capillary phenomenon.

  In the above embodiment, the sealing method using the packing and the operation panel has been described, but the sealing method is applicable regardless of the method.

  In the above embodiments, the liquid crystal display has been described. However, as a method for preventing the moisture-proof material from entering and scooping up to other parts such as the moisture-proof material entering the operation switch and the moisture-proof material scooping up on the surface of the 7-segment LED. Is also applicable.

  In the above embodiment, the example of the drum type washing / drying machine has been described. However, the present invention can also be applied to a display device that is filled with a moisture-proof material such as a vertical washing machine, a vertical washing / drying machine, and a drying machine.

8 Operation / Display Unit 11 Press Operation Unit 12 Operation Content Display Unit 13 Operation Panel 14 Print Sheet 15 Controller 18 Operation / Display Guide 19 Light Emitting Element 20 Operation Switch 21 Liquid Crystal Display 22 Liquid Crystal Element 23 Backlight Case 24 Packing 25 For Sealing Rib 26 Moisture-proof material 27 Moisture-proof material injection point 28 Scooping up 29, 43, 44 Rib 30 Step shape 31 Inclined shape 32 Recessed shape 33 Backlight case lower part 34 Movable claw 35 Notch 36 Cover 37 Internal corner corner 38 Opening 39 connected to the inside 39 Electrode 40 Corner 41, 42 R shape

Claims (3)

  A washing tub for storing laundry; an outer tub containing the washing tub; an operation unit for selecting operation details; and a liquid crystal display for displaying the operation details selected by the operation unit. Is a backlight case having a backlight light source and a liquid crystal element provided on the upper surface side of the backlight case, and in a washing machine in which a lower portion of the backlight case is sealed with a moisture-proof material, A washing machine, wherein a protruding portion is provided at a corner of a vertical wall surface to prevent the moisture-proof material from creeping up when the moisture-proof material is injected.   A washing tub for storing laundry; an outer tub containing the washing tub; an operation unit for selecting operation details; and a liquid crystal display for displaying the operation details selected by the operation unit. In a washing machine comprising a backlight case having a backlight light source and a liquid crystal element provided on the upper surface of the backlight case, and covering the lower part of the backlight case with a moisture-proof material, the vertical wall surface of the backlight case A washing machine characterized in that a corner surrounded by a curved surface is formed.   A washing tub for storing laundry; an outer tub containing the washing tub; an operation unit for selecting operation details; and a liquid crystal display for displaying the operation details selected by the operation unit. In a washing machine having a backlight case having a backlight light source and a liquid crystal element fixed by a movable claw at the upper end of the backlight case and sealing the lower part of the backlight case with a moisture-proof material, the movable claw And the washing machine characterized by providing the cover on the outer side of the notch formed in the both sides.