TW201725351A - Door plate device of electric appliance providing door plate of electric appliance with image display function and convenient for usage - Google Patents

Abstract

The present invention provides a door plate device of an electric appliance, which is mounted to a box body of an electric appliance. The box body is defined into a receiving space having an opening. The door plate device of the electric appliance comprises a door plate unit and a backlight unit. The door plate unit comprises a panel module. The panel module comprises an image display area and a watching area that is integrally connected with the image display area and is transparent for watching the receiving space. The backlight unit comprises a backlight module that is disposed on the door plate unit in a linkable manner and corresponding to the panel module. The backlight module provides the light for the image display area. The panel module of the present invention may provide the function of image display and also can be used for watching the receiving space. Thus, the present invention provides a novel structure and is convenient for usage.

Description

Electrical door panel device

The present invention relates to a door panel device for an electric appliance, and more particularly to a door panel device such as an electric appliance such as a microwave oven or a refrigerator.

Microwave ovens, ovens and other equipment can be used for microwaves, baking foods, heating, cooking food purposes. Taking a microwave oven as an example, the structure generally includes a box for placing the food material, a door panel that is openably and closably mounted on the box body, and a plurality of control keys and a display screen disposed on the front side of the box body. The control button includes an opening button and a setting button for setting the heating temperature and time. This display shows information such as heating temperature and time. Since the display screen is disposed on the casing, the front surface area of the casing wall must be large enough to have a sufficient area to set the display screen, but the overall volume of the microwave oven is increased. On the other hand, if you keep the front surface area of the casing wall large enough, and you want the microwave oven to be too large, you must reduce the internal space of the cabinet, but this will cause the housing space to change. Small, can accommodate a limited amount of food, or can not accommodate larger volumes of food. Moreover, the display screen is arranged on the box body, so that the surface design of the box body is not simple.

Accordingly, it is an object of the present invention to provide a door panel apparatus having an electric appliance whose door panel has a screen display function and is convenient to use.

Therefore, the door panel device of the electric appliance of the present invention is mounted on a casing of an electric appliance, and the casing defines an accommodating space having an opening. The door panel device of the electric appliance comprises a door panel unit and a backlight unit. The door panel unit is openably mounted on the box and can close the opening. The door panel unit comprises a panel module, the panel module has a screen display area, and an integral connection with the screen display area and transparent For viewing the viewing area of the accommodating space. The backlight unit includes a backlight module disposed on the door panel unit and disposed on the panel module, and the backlight module provides light in the screen display area.

The effect of the present invention is that the panel module is disposed by the door panel unit, and the panel module can be divided into the screen display area and the viewing area, and the backlight module can correspond to the screen display area to provide light, The panel module has the display screen function of the display on the one hand, and the accommodating space can be viewed through the panel module on the other hand. The above structure innovation of the present invention is convenient to use.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIGS. 1 to 4, a first embodiment of the door panel device of the electric appliance of the present invention can be mounted on a casing 1 of an electric appliance, and is combined with the casing 1 to constitute the electric appliance. In this embodiment, the electrical appliance is a microwave oven, and the casing 1 includes a top wall 11 and a bottom wall 12 spaced apart from each other, and a peripheral wall 13 connected between the top wall 11 and the bottom wall 12 and surrounded by three sides. And an opening key 15 and a plurality of function keys 16 disposed on the front surface of the peripheral wall 13. The top wall 11 and the bottom wall 12 together with the peripheral wall 13 define an accommodating space 14 for placing and heating food and having a front opening 141. The function keys 16 are used to set parameters such as cooking heating temperature and time. The door panel device comprises: a door panel unit 2, a backlight unit 3, a lighting unit 4, and a heat insulating unit 5.

The door panel unit 2 is openably mounted to the front side of the casing 1 and can close the opening 141. The door panel unit 2 includes a door frame 21, a panel module 22 mounted on the door frame 21, and a state switching button 23 disposed on the box 1.

The door frame 21 is pivotally connected to the box body 1 and can be opened or closed relative to the box body 1 by pivoting. The door frame 21 includes a substantially quadrangular outer frame portion 211, and a partition portion 212 that is laterally connected to the outer frame portion 211 and that surrounds the outer frame portion 211. The panel module 22 includes a display panel 221 and a drive control 222 that connects the display panel 221 and outputs control signals to the display panel 221 . The area of the display panel 221 substantially covers the entire accommodating space 14. The display panel 221 has a screen display area 223 and a viewing area 224 that are integrally connected and vertically adjacent. In this embodiment, the display panel 221 is a liquid crystal panel including components such as a glass substrate, a liquid crystal layer, and a polarizing plate. Since this is a known technique, it will not be described. The drive control 222 can control the screen display area 223 to display an information screen regarding cooking information. The drive control member 222 includes at least one flexible circuit board and electronic circuit components disposed on the flexible circuit board. The information screen of the cooking information is, for example, the time, temperature, and the like of heating the food. When used in a microwave oven, it can be used to display microwave time, microwave fire strength, microwave temperature, and the like.

The viewing area 224 is a portion of the display panel 221 that is not used for displaying a screen. The liquid crystal alignment direction in the viewing area 224 can be controlled by the driving control member 222, and further in a light transmitting state as shown in FIG. 4 non-transparent state transitions. When the liquid crystal of the viewing zone 224 is arranged to be transparent to light, the viewing zone 224 is in the light transmitting state, and like a general permeable glass, the user can view the accommodating space 14 from the outside. When the liquid crystal alignment direction of the viewing zone 224 is such that light is not transmitted, the viewing zone 224 is in the non-transmissive state, and its brightness is lowered to present a relatively dark appearance. It should be noted that the viewing zone 224 of the present invention may be maintained in a light transmitting state at all times, and is not designed to be switchable to two states.

The state switching button 23 is electrically connected to the driving control member 222, and can control the driving control member 222 to issue an instruction to control the viewing area 224 to switch from the light transmitting state to the non-light transmitting state, or from the non-transparent state. The light state is switched to the light transmitting state.

The backlight unit 3 includes a mounting frame 31 disposed on the door panel unit 2 and a backlight module 32 disposed on the mounting frame 31. The mounting frame 31 includes three first frame bars 311 which are vertically spaced apart and horizontally extended, and two second frame bars 312 which are respectively connected to the left and right sides of the first frame bars 311 and are upright. The first frame rod 311 and the second frame rod 312 together define a first space 313 and a second space 314 adjacent to each other. The first space 313 and the second space 314 respectively correspond to the positions of the screen display area 223 and the viewing area 224. The second space 314 can be designed as a simple hole space as in this embodiment, and can also be selectively provided with a glass that is not shown and can be transmitted through light, as long as the user does not affect the user to view the accommodating space 14.

The backlight module 32 is correspondingly disposed on the rear side of the panel module 22 and located in the first space 313 . Since the panel module 22 only needs to display the screen, the viewing area 224 is not used for displaying the screen. Therefore, the backlight module 32 can only be disposed corresponding to the screen display area 223, and is used to provide the screen display area. 223 light. The backlight module 32 can comprise the same components as the backlight module of a general liquid crystal display, that is, a light guide plate including at least one light emitting element and a light for guiding the light emitting element forward. a reflecting plate located on the back of the light guide plate and reflecting the light toward the front, and a brightness enhancing film and a diffusing plate on the front surface of the light guiding plate. For convenience of illustration, the backlight module 32 is illustrated by only one plate in the figure.

The lighting unit 4 includes a plurality of lighting members 41 disposed in the second space 314 for illuminating the viewing area 224. Specifically, each of the illuminating members 41 of the present embodiment is a light emitting diode (LED), and is arranged in two groups in a plurality of groups. The two groups of illuminating members 41 are respectively installed in the middle of the mounting frame 31. And the two first frame rods 311 below.

The thermal insulation unit 5 is disposed on the rear side of the backlight unit 3 and is located between the backlight unit 3 and the accommodating space 14 . The heat insulating unit 5 includes two partition walls 51 spaced apart from each other, and a surrounding wall 52 connected between the partition walls 51 and defining a heat insulating space 50 with the partition walls 51. Preferably, the heat insulating space 50 can be evacuated to have a heat-insulating effect, and the heat energy of the box 1 during cooking can be prevented from being transmitted to the front, thereby avoiding the backlight unit 3, the panel module 22 and the light emitting. Unit 4 overheats to affect performance.

When the user uses the time and temperature of cooking heating, the set heating time and heating temperature switching information are displayed on the screen display area 223 of the panel module 22. When the setting is completed and the heating is started, the instantaneous temperature and the heating countdown time of the accommodating space 14 are also presented in the screen display area 223 at any time. In addition, the user can view the food heating cooking condition in the accommodating space 14 when the viewing area 224 is switched to the light transmitting state. As shown in FIG. 3, an example is the heating of an aluminum foil package beverage.

In summary, the panel module 22 is disposed by the door panel unit 2, and the panel module 22 can be divided into the screen display area 223 and the viewing area 224, and is disposed at a portion corresponding to the screen display area 223. The backlight module 32 has a display screen function of the display, and can display information such as heating time and temperature. On the other hand, the accommodating space 14 can be viewed through the panel module 22 . Therefore, the present invention integrates the display function on the door panel unit 2, so that the box 1 can omit the conventional display area, so that the surface design of the box 1 is simple, and the housing of the box 1 is reduced because the display area is reduced. The thickness can be made thin to increase the accommodating space 14. The invention provides an innovative structural change design, which is quite convenient to use and can be more selected by the consumer.

Referring to FIG. 5, a second embodiment of the door panel device of the present invention is substantially the same as the structure of the first embodiment. The difference is that the backlight module 32 of the embodiment has a large area and can correspond to the same. The screen display area 223 of the display panel 221 and the viewing area 224. The backlight module 32 includes a light guide plate 321 and a plurality of backlights 322 located above the light guide plate 321 . The backlight module 32 can be the same as the first embodiment, and further includes a reflecting plate, a brightness enhancing film and a diffusing plate. The light guide plate 321 has a light guiding area 323 corresponding to the screen display area 223, and a light transmitting area 324 integrally connected to the light guiding area 323 and corresponding to the viewing area 224. The light guiding region 323 has a light incident surface 325 facing the backlight illuminators 322, a rearward back surface 326, and a plurality of reflective microstructures 327 located on the back surface 326. The reflective microstructure 327 may be an array dot formed by printing, or may be formed by other methods, and the light incident from the backlight 322 may be reflected forward to provide light. This screen displays area 223. The transparent region 324 is not provided with the reflective microstructure 327 in principle, and is a light-transmissive region. When the user observes from the outside to the inside, the cabinet 1 can be seen through the viewing region 224 and the transparent region 324. (Figure 1) Internal.

The mounting frame 31 of the present embodiment is designed to match the structure of the backlight module 32. The number of the first frame rods 311 of the mounting frame 31 is two, and is located at the uppermost and lowermost portions of the entire frame. The illuminating members 41 of the illuminating unit 4 are located on the lower first frame 311.

In this embodiment, the same function as the first embodiment can be achieved by the design of the panel module 22 and the backlight module 32.

Referring to FIG. 6, a third embodiment of the door panel device of the electrical appliance of the present invention is an example of a refrigerator. The screen display area 223 of the panel module 22 of the door panel device and the viewing area 224 are disposed to the left and right. The screen display area 223 can display information such as the refrigerating temperature and the freezing temperature of the refrigerator, and the screen display area 223 can be designed as a touch panel, and is provided with a plurality of buttons 25 for touch control for setting and controlling. Refrigeration temperature, freezing temperature, deodorization function, and release of silver ions to sterilize. From the viewing zone 224, the food stored inside the refrigerator can be seen.

The present embodiment is applied to a cold box, which also has a display screen and a function for viewing the inside of the refrigerator, and can achieve the same effects as the first embodiment.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

1‧‧‧ cabinet
11‧‧‧ top wall
12‧‧‧ bottom wall
13‧‧‧Wall
14‧‧‧ accommodating space
141‧‧‧ openings
15‧‧‧Open button
16‧‧‧ function keys
2‧‧‧door unit
21‧‧‧ door frame
211‧‧‧Outer frame
212‧‧‧section
22‧‧‧ Panel Module
221‧‧‧ display panel
222‧‧‧Drive Controls
223‧‧‧Screen display area
224‧‧‧ viewing area
225‧‧‧ button
23‧‧‧Status switch button
3‧‧‧Backlight unit
31‧‧‧Installation box
311‧‧‧ first frame rod
312‧‧‧Second frame
313‧‧‧First space
314‧‧‧Second space
32‧‧‧Backlight module
321‧‧‧Light guide plate
322‧‧‧Backlight illuminators
323‧‧‧Light Guide Area
324‧‧‧Light transmission area
325‧‧‧Into the glossy surface
326‧‧‧ back
327‧‧‧Reflective microstructure
4‧‧‧Lighting unit
41‧‧‧Lighting parts
5‧‧‧Insulation unit
50‧‧‧Insulated space
51‧‧‧ partition wall
52‧‧‧ Around the wall

BRIEF DESCRIPTION OF THE DRAWINGS Other features and advantages of the present invention will be apparent from the embodiments of the present invention, wherein: FIG. 1 is an exploded perspective view showing a first embodiment and a casing of the door panel apparatus of the present invention; Figure 2 is an incomplete partial cross-sectional view showing the first embodiment and the case; Figure 3 is a front view showing a viewing area of the first embodiment in a light transmitting state; Figure 4 is a similar view 3 is a front view showing that the viewing area is in a non-transmissive state; FIG. 5 is an exploded perspective view showing a panel module, a backlight unit, and a second embodiment of the door panel device of the present invention The light emitting unit; and Fig. 6 is a front view showing a third embodiment and a case of the door panel device of the electric appliance of the present invention.

1‧‧‧ cabinet

11‧‧‧ top wall

12‧‧‧ bottom wall

13‧‧‧Wall

14‧‧‧ accommodating space

141‧‧‧ openings

2‧‧‧door unit

21‧‧‧ door frame

211‧‧‧Outer frame

224‧‧‧ viewing area

3‧‧‧Backlight unit

31‧‧‧Installation box

311‧‧‧ first frame rod

313‧‧‧First space

314‧‧‧Second space

32‧‧‧Backlight module

4‧‧‧Lighting unit

41‧‧‧Lighting parts

212‧‧‧section

22‧‧‧ Panel Module

221‧‧‧ display panel

222‧‧‧Drive Controls

223‧‧‧Screen display area

5‧‧‧Insulation unit

50‧‧‧Insulated space

51‧‧‧ partition wall

52‧‧‧ Around the wall

Claims (11)

A door panel device for an electric appliance is mounted on a box of an electric appliance, the box body defining an accommodating space having an opening, the door panel device of the electric appliance comprising: a door panel unit that is openably mounted on the box body And closing the opening, the door panel unit comprises a panel module, the panel module has a screen display area, and a viewing area integrally connected with the screen display area and transparent to view the receiving space; A backlight unit includes a backlight module disposed on the door panel unit and disposed on the panel module, and the backlight module provides light in the screen display area. The door panel device of the electric appliance of claim 1, further comprising an insulation unit disposed on the rear side of the backlight unit, the insulation unit includes two partition walls spaced apart from each other, and a connection between the partition walls And surrounding the walls defining a heat insulating space with the partition walls. The door panel device of the electric appliance according to claim 2, wherein the heat insulating space is a vacuum. The door panel device of the electric appliance of claim 1, wherein the backlight unit further comprises a mounting frame disposed on the door panel unit, the mounting frame defining an adjacent first space and a second space. The first space and the second space respectively correspond to the position of the screen display area and the viewing area, and the backlight module is mounted on the mounting frame and located in the first space. The door panel device of the appliance of claim 4, further comprising a lighting unit disposed in the second space for illuminating the viewing zone. The door panel device of the appliance of claim 5, wherein the mounting frame comprises three first frame bars spaced apart from each other, and two second frame bars respectively connected to the left and right sides of the first frame bars, The first frame bar and the second frame bar together define the first space and the second space adjacent to each other, and the light-emitting unit comprises a plurality of the first frame rods respectively installed in the middle and below of the mounting frame Light on the upper part. The door panel device of the appliance of claim 1, wherein the viewing zone is controllable to switch between a light transmitting state and a non-light transmitting state, wherein the viewing zone is permeable to light when viewed in the light transmitting state. The accommodation space. The door panel device of the electric appliance of claim 1, wherein the backlight module comprises a light guide plate, and at least one backlight illuminating member on one side of the light guide plate, the light guide plate having a corresponding one of the panel modules a light guiding area of the screen display area, the light guiding area has a light incident surface facing the backlight illuminating member, a rear side facing back, and a plurality of reflective microstructures located on the back surface, the reflective microstructures illuminating the backlight The incoming light is reflected forward to provide light to the picture display area. The door panel device of the electrical appliance of claim 8, wherein the light guide plate further has a light transmitting region integrally connecting the light guiding region and corresponding to the viewing area of the panel module. The door panel device of the appliance of claim 1, wherein the panel module comprises a display panel having the screen display area and the viewing area, the area of the display panel covering the entire housing space. The door panel device of the appliance of claim 1, wherein the appliance is a refrigerator, the screen display area displays a refrigerating temperature and a freezing temperature of the refrigerator, the screen display area is a touch panel, and has several available Touch to set the button for refrigerating temperature and freezing temperature.