JP2013188273A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing machine having a liquid crystal display on the surface of which dust and the like are hardly attached.SOLUTION: The washing machine comprises a washing tub for accommodating laundry; an outer tub for containing the washing tub; an operation part for setting contents of an operation; and a display part for displaying the contents of the operation set by the operation part, the operation part and the display part being provided on a substrate. The display part includes the liquid crystal display, a housing for mounting the liquid crystal display, and a liquid crystal cover for covering the surface of the liquid crystal display. The liquid crystal cover is fixed on the housing with a cover-side engaging portion provided on an outer periphery of the liquid crystal cover and a housing-side engaging portion provided on an outer periphery of the housing, and a rear face of the housing is attached to the substrate.

Description

  The present invention relates to a washing machine, and more particularly to a cover that covers the surface of an operation panel.

  A general washing machine is provided with an operation panel including an operation unit that sets operation details and a display unit that informs the operation details set by the operation unit. For example, Patent Document 1 below discloses a structure of a drum-type washing machine that employs a liquid crystal device as a display unit and covers the entire operation panel with a cover.

JP 2009-189678 A

  However, the above-described conventional washing machine covers not only the display unit having the liquid crystal device but also the operation unit with the cover, and the cover is fixed to the substrate. ing. For this reason, when the whole washing machine is assembled, the surface of the liquid crystal device is covered with the cover only after the display unit is attached to the substrate together with the operation unit. Therefore, before the display unit is attached to the washing machine, dust or the like tends to adhere to the surface of the liquid crystal device unless it is carefully managed such as in a clean room.

  An object of the present invention is to provide a washing machine in which dust or the like hardly adheres to the surface of a liquid crystal device.

  A washing tub for storing clothes; an outer tub containing the washing tub; an operation unit for setting operation details; and a display unit for notifying operation details set by the operation unit. In the washing machine installed on the substrate, the display unit includes a liquid crystal device, a housing on which the liquid crystal device is placed, and a liquid crystal cover that covers a surface of the liquid crystal device, and is provided on an outer peripheral portion of the liquid crystal cover. The liquid crystal cover was fixed to the housing by a cover side engaging portion and a housing side engaging portion provided on the outer peripheral portion of the housing, and the back side of the housing was attached to the substrate.

  ADVANTAGE OF THE INVENTION According to this invention, the washing machine with which refuse etc. cannot adhere easily to the surface of a liquid crystal device can be provided.

It is a figure which shows the external appearance of the washing machine which concerns on the Example of this invention, (a) is a top view, (b) is a front view. It is the figure which expanded the operation panel of the washing machine which concerns on the Example of this invention. It is an exploded view of the operation panel of the washing machine which concerns on the Example of this invention. It is the figure which expanded the display part of the operation panel which concerns on the Example of this invention. It is a figure which shows the whole structure of the liquid-crystal cover which concerns on the Example of this invention. It is the figure which expanded the A section of FIG. It is a figure which shows the whole structure of the rubber packing which concerns on the Example of this invention. It is the figure which expanded the B section of FIG. It is a figure which shows the whole structure of the housing which concerns on the Example of this invention. It is a partial cross section figure which shows the state which attached the liquid crystal cover to the housing with the rubber packing.

  Embodiments of the present invention will be described below with reference to the drawings.

  1A and 1B are views showing an external appearance of a drum type washing machine 100 according to the present embodiment, where FIG. 1A is a plan view and FIG. 1B is a front view.

  As shown in FIG. 1, the drum type washing machine 100 has an outer frame 1 whose outer shell is configured by combining a steel plate and a resin molded product. The outer frame 1 includes a base 1f, and left and right side plates 1a and 1b, a front cover 1c, a back cover 1d, and a top cover 1e are attached above the base 1f to form a box-shaped outer frame 1. ing.

  At the approximate center of the front cover 1c, a loading port for loading and unloading laundry such as clothes into and out of the drum is formed. It is attached so that it can be opened and closed. A handle 7 a for releasing the lock mechanism of the door 7 is provided on the right side of the door 7. By pulling the handle 7a forward, the locking mechanism is released and the door 7 is opened, and the door 7 is pressed against the front cover 1c to be locked and closed.

  In addition, a drawer type detergent box (detergent input unit) 12 for supplying detergent, a finishing agent, and the like is disposed at the upper part of the outer frame 1, and an operation panel 6 is provided on the right side of the detergent box 12. ing.

  Further, although not shown, the outer frame 1 of the drum type washing machine 100 includes a drum as a washing tub for storing clothing and an outer tub for containing the drum. And it is possible to perform a washing process, a rinsing process, a dehydrating process, etc. by rotating a shaft coupled to the drum with a drive motor. In this embodiment, a drum type washing machine will be described, but it should be understood that a drum type washing machine may be provided.

  As shown in FIG. 2, the operation panel 6 includes a power switch 2, an operation switch 3, and a course setting dial 4 as operation units for setting operation details. The operation panel 6 also has a display unit 5 for notifying the operation content set by the operation unit.

  Here, the operation switch 3 is a button for appropriately changing the washing time, the number of times of rinsing, and the like, and the course setting dial 4 is for selecting operation details such as a careful course and a blanket course as appropriate. When the course setting dial 4 is rotated, the corresponding driving courses are switched one after another, and the LED 8 in the place indicating the corresponding driving course contents is lit to notify the user. A dial rubber packing 18 is attached to the bottom side of the course setting dial 4 to prevent water from entering the components of the rotary encoder 17 installed coaxially with the course setting dial 4.

  FIG. 3 is a diagram illustrating a positional relationship when the operation unit and the display unit 5 are arranged on the substrate 10. An LED 8 and a housing 13 are installed on the substrate 10. In addition, the moisture-proof treatment is performed by injecting urethane resin in a state where the substrate 10 is mounted on the substrate case 11 and the LED support member 9 is mounted on the substrate 10.

  Hereinafter, the structure of the display unit 5 will be described. As shown in FIG. 4, the display unit 5 in this embodiment includes a housing 13 that holds a backlight and the like, a liquid crystal device 16 that is placed on the upper surface side of the housing 13, and a resin that covers the surface of the liquid crystal device 16. A liquid crystal cover 14 made of rubber and a rubber packing 15 that prevents water from entering through a gap between the housing 13 and the liquid crystal cover 14 are provided. The liquid crystal device 16 in this embodiment includes a backlight, a light guide plate that diffuses the light of the backlight, a reflector that collects light in the viewing direction, and the like in addition to the liquid crystal panel.

  Next, the structure of the liquid crystal cover 14 will be described in detail with reference to FIGS. The left side of FIG. 5 shows a plan view when viewed from the back surface of the liquid crystal cover 14, the right side of FIG. 5 shows a cross-sectional view when viewed from the lateral direction, and an enlarged view of the portion A in FIG. 6. As shown in these drawings, the liquid crystal cover 14 includes a front surface portion 140 for covering the entire surface of the liquid crystal device 16, an outer peripheral edge portion 141 extending from the periphery of the front surface portion 140 toward the back surface side, and the outer peripheral edge portion 141. And an inner peripheral edge 142 extending in the rear surface direction.

  First, the outer peripheral edge 141 of the liquid crystal cover 14 is formed with a plurality of outer peripheral protrusions 141a at the tip in the back surface direction, and the outer peripheral protrusion 141a is provided with an engagement hole 141b. The engagement hole 141b is engaged with an engagement claw 132a provided on the outer wall surface of a peripheral edge 132 of the housing 13 described later, whereby the liquid crystal cover 14 and the housing 13 are locked.

  Further, the inner peripheral edge portion 142 of the liquid crystal cover 14 is formed by a wall surface surrounding the liquid crystal device 16, and a groove 15a of the rubber packing 15 shown in FIGS. 7 and 8 is fitted therein.

  Next, the structure of the housing 13 will be described in detail with reference to FIG. 9 shows a plan view when viewed from the surface of the housing 13, and the right side of FIG. 9 shows a cross-sectional view when viewed from the lateral direction. As shown in FIG. 9, the housing 13 includes a liquid crystal container 131 formed by a wall surface surrounding the liquid crystal device 16, and a peripheral part 132 that is positioned outside the liquid crystal container 131 and extends toward the surface side. Have

  The peripheral edge 132 of the housing 13 is provided with engaging claws 132 a at a plurality of locations outside the wall surface, and is configured to be able to fit into the engaging holes 141 b of the liquid crystal cover 14.

  Here, a process of attaching the display unit 5 to the main body of the drum type washing machine 100 will be described. In this embodiment, first, the groove 15 a of the rubber packing 15 is inserted into the inner peripheral edge 142 of the liquid crystal cover 14, and the rubber packing 15 is attached to the liquid crystal cover 14. Next, the liquid crystal cover 14 is fixed to the housing 13 by fitting the cover side engaging portion provided on the outer peripheral portion of the liquid crystal cover 14 and the housing side engaging portion provided on the outer peripheral portion of the housing 13. FIG. 10 shows the state at this time. Then, the back side of the housing 13 is attached to the substrate 10 in a state where the liquid crystal cover 14 and the housing 13 are integrated.

  According to the present embodiment, the display unit 5 can be installed in the main body of the drum type washing machine 100 with the liquid crystal cover 14 covering the liquid crystal device 16 as a unit. For this reason, it is possible to prevent dust from adhering to the surface of the liquid crystal device when the liquid crystal device is transported before being placed on the substrate, unlike when the exposed liquid crystal device is placed on the substrate and then covered with a cover. . In other words, special management for preventing the adhesion of dust is not required when the display unit is transported.

  Furthermore, since the liquid crystal cover 14 of this embodiment is a cover attached to the housing 13, the cover itself can be smaller in structure than a cover that covers the entire housing and is attached to the substrate. There are also advantages.

  In this embodiment, the liquid crystal cover 14 and the housing 13 are fixed by the engagement holes 141b provided in the liquid crystal cover 14 and the engagement claws 132a provided in the housing 13, but the liquid crystal cover 14 and the housing 13 are fixed by other methods. The housing 13 may be engaged.

1 Outer frame 2 Power switch 3 Operation switch 4 Course setting dial 5 Display unit 6 Operation panel 7 Door 8 LED
9 LED support member 10 substrate 11 substrate case 12 detergent box 13 housing 14 liquid crystal cover 15 rubber packing 16 liquid crystal device 17 rotary encoder

Claims (3)

A washing tub for storing clothes; an outer tub containing the washing tub; an operation unit for setting operation details; and a display unit for notifying operation details set by the operation unit. In the washing machine installed on the substrate
The display unit includes a liquid crystal device, a housing for mounting the liquid crystal device, and a liquid crystal cover that covers a surface of the liquid crystal device,
The liquid crystal cover is fixed to the housing by a cover side engaging portion provided on the outer peripheral portion of the liquid crystal cover and a housing side engaging portion provided on the outer peripheral portion of the housing,
A washing machine, wherein a rear side of the housing is attached to the substrate. In claim 1,
A washing machine characterized in that a rubber packing is fitted into the inner periphery of the liquid crystal cover. In the washing machine display unit that informs the operation content set in the operation unit,
A liquid crystal device, a housing for mounting the liquid crystal device, and a liquid crystal cover for covering the surface of the liquid crystal device,
A display unit for a washing machine, wherein the liquid crystal cover is fixed to the housing by a cover side engaging portion provided on an outer peripheral portion of the liquid crystal cover and a housing side engaging portion provided on an outer peripheral portion of the housing. .