TWI593928B - Refrigerator - Google Patents

Description

refrigerator

The present invention relates to a refrigerator, and more particularly to an operation panel portion of a refrigerator.

In recent years, the touch panel sensor system of the operation panel of the refrigerator has gradually become the mainstream. When the icon and the characters of the touch operation portion are displayed on the operation panel portion, the illuminant such as the light source is used after the operation panel portion. The party is illuminated by the Ministry. In this way, there are many refrigerators that display visibility and the like only during operation to improve visibility.

Further, a refrigerator (see, for example, Patent Document 1) is proposed. The operation panel portion of the refrigerator is turned on only when the operation panel portion is operated, and the operation panel portion is turned off when it is not normally operated. Improve creativity when not working.

Here, in order to make it impossible to display the illustration when the operation panel is turned off, it is proposed to use a white pigment which is the same as the white system commonly used in the design of the refrigerator as a packaging material in a fixed ratio, thereby improving the concealability of the contents. Various methods (for example, refer to Patent Documents 2 to 4).

[Prior patent documents]

[Patent Literature]

[Patent Document 1] JP-A-2014-40960 (pages 4 to 5)

[Patent Document 2] JP-A-2008-62956 (page 6)

[Patent Document 3] International Publication No. 2008/038716 (pages 9 to 10)

[Patent Document 4] International Publication No. 2008/047581 (page 9)

In the invention proposed in the patent document 1, when the characters or illustrations displayed on the operation panel unit are turned on, if the transparency of the characters or the like is improved, the display panel is not lit. It will look at the problem points of the display of text and so on.

On the other hand, in the inventions proposed in Patent Documents 2 to 4, when the display of the operation panel portion of the refrigerator is not lit, the operation panel is configured so as not to be displayed by the operation panel portion. The decorative layer of one part of the department contains many white pigments. In this way, the concealment of the content can be enhanced. However, when the characters or illustrations displayed on the operation panel unit are lit, the visibility of the displayed characters or the like is lowered.

In particular, in the case of a refrigerator, there is also a fixed-demand refrigerator in which a white system is applied, because when the display panel of the operation panel is lit, it is difficult to assign the color of the display portion of the operation panel portion to the white color of the refrigerator body. In contrast, there is a problem that the visibility of the display portion of the operation panel portion is lowered.

In addition, by changing the color of the display portion of the operation panel portion from the white system to the silver-white or gray system, the contrast can be ensured, but the design color of the display portion of the operation panel portion cannot be realized, and the refrigerator may be lost. The overall sense of unity.

The present invention has been developed in order to solve the problems as described above. An object of the present invention is to provide a refrigerator that improves the visibility of a display portion when the display portion of the operation panel portion is turned on, and improves the concealability of characters and the like when the display portion of the operation panel portion is turned off.

The refrigerator of the present invention comprises: a transparent member: a decorative layer disposed on the inner side of the transparent member and decorated with ink of a black system having a reference amount or less; the laminated sheet is a conductive member that detects a change in electrostatic capacitance. a colored conductive wiring, a transparent substrate, and a printed layer that are conveyed by the conductive member are sequentially laminated and disposed on the inner side of the decorative layer; the shielding wall is disposed on the inner side of the laminated sheet And shielding the light from the rear side to illuminate the light source of the printed layer; and the electronic substrate is disposed inside the shielding wall, and detects a signal from the colored conductive wiring, and has the light source.

According to the present invention, there is provided a refrigerator which is provided in a transparent member by a decorative layer decorated with ink of a black system having a reference amount or less, and concealed by a display portion of the operation panel when the display portion of the operation panel is turned off. The character is improved so that the characters of the display portion of the operation panel cannot be seen. Further, a refrigerator is provided which is provided on a transparent member by a decorative layer decorated with ink of a black system having a reference amount or less, and is secured by a transparent member of the operation panel when the display portion of the operation panel is lit Permeability ensures visibility of the display portion of the operation panel.

1‧‧‧ refrigerator

2‧‧‧Compressor

3‧‧‧ cooler

4‧‧‧Air supply fan

5‧‧‧ Wind Road

6‧‧‧Operator panel

11‧‧‧Transparent components

12‧‧‧Transparent electrode

13‧‧‧Support members

14‧‧‧Retaining components

15‧‧‧Electronic substrate

16‧‧‧Retaining components

17‧‧‧Display logo layer

17a‧‧‧Showing department logo

17b‧‧‧ display department logo

18‧‧‧ground layer

19‧‧‧ground layer

20‧‧‧Back press layer

21‧‧‧Start button

22‧‧‧ operation icon

23‧‧‧Transparent substrate

24‧‧‧pattern wiring layer

25‧‧‧Transparent conductive ink layer

26‧‧‧Insulating ink layer

27‧‧‧Printed layer (shading layer)

28‧‧‧Light diffusion layer

29‧‧‧Glue printing layer

30‧‧‧Light source

32‧‧‧ Graphic display department

33‧‧‧Decorative layer

100‧‧‧Refrigerator

200‧‧‧Switching room

201‧‧‧Switching room storage box

300‧‧‧ ice making room

400‧‧‧Freezer

500‧‧ ‧ vegetable room

501‧‧‧ vegetable room storage box

F‧‧‧ finger

Fig. 1 is a schematic view showing the front side of a refrigerator according to an embodiment of the present invention.

Fig. 2 is a schematic view showing a side cross section of a refrigerator according to an embodiment of the present invention.

Fig. 3 is a view showing a state in which one of the operation panels according to the embodiment of the present invention is partially exploded.

Fig. 4 is a view schematically showing a cross section of a transparent member and a printing surface (decorative layer) constituting one of the operation panels of the embodiment of the present invention.

Fig. 5 is a front elevational view showing a transparent member constituting one of the operation panels of the embodiment of the present invention.

Fig. 6 is a front elevational view showing a transparent electrode sheet constituting a part of the operation panel of the embodiment of the present invention.

Fig. 7 is a view schematically showing a cross section of a transparent electrode sheet constituting one of the operation panels of the embodiment of the present invention.

Fig. 8 is a view schematically showing a cross section of the entire constituent elements of the operation panel unit constituting the embodiment of the present invention.

Implementation form

[Description of the composition of the refrigerator]

Fig. 1 is a schematic view showing the front side of a refrigerator 1 according to an embodiment of the present invention. As shown in Fig. 1, the refrigerator 1 has a plurality of storage compartments formed therein in a plurality of stages in the vertical direction. Also, in one section, there is also a storage compartment divided in the left and right direction.

As the storage room, the refrigerating compartment 100 is placed at the uppermost portion. A split type opening and closing door is included in front of the refrigerating compartment 100. The switching chamber 200 and the ice making chamber 300 are arranged side by side under the refrigerating compartment 100, and the switching chamber 200 can be switched to a freezing temperature zone (-18 ° C), refrigeration (3 ° C), quenching (0 ° C), and soft freezing ( -7°C) Various temperature bands. The switching chamber 200 and the ice making chamber 300 are each openable and closable by a pull-out door. Further, below the switching chamber 200 and the ice making chamber 300, a freezer compartment 400 that can be opened and closed by a pull-out type door is provided. Further, below the freezing compartment 400, that is, the lowermost section of the storage compartment, a vegetable compartment 500 that can be opened and closed by a pull-out type door is provided.

The operation panel 6 is provided on the surface of the opening and closing door of the refrigerating compartment 100. The operation panel 6 includes an operation switch (not shown) for adjusting the room temperature or setting of each storage compartment, and a liquid crystal display unit (not shown) for displaying the temperature of each storage compartment. In addition, the details of the operation panel 6 will be described later on the third drawing to be described later.

In the present embodiment, the operation panel 6 is provided on the surface of the opening and closing door of the refrigerating compartment 100. However, the present invention is not limited thereto, and may be stored, for example, inside the refrigerator 1 or outside the refrigerating compartment 100. The surface of the door of the room is disposed on the outer side of the refrigerator 1.

In the present embodiment, the storage compartment of the refrigerator 1 includes the refrigerator compartment 100, the switching compartment 200, the ice making compartment 300, the freezing compartment 400, and the vegetable compartment 500. However, the configuration of the storage compartment of the refrigerator 1 is not limited. For this purpose, for example, the refrigerator 1 that does not include the switching chamber 200 or the ice making chamber 300 or the refrigerator 1 that positions the freezing chamber 400 and the vegetable compartment 500 may be provided.

Fig. 2 is a schematic view showing a side cross section of the refrigerator 1 according to the embodiment of the present invention. As shown in Fig. 2, the refrigerator 1 includes a compressor 2 which is a part of a refrigeration cycle which is internally formed, and a cooler 3. Further, the refrigerator 1 includes a blower fan 4 for supplying air to the storage compartments of the refrigerator 1 by cold air cooled by the cooler 3, and an air duct 5 for introducing a loan fan to each storage compartment. 4 air-conditioning air.

The cold air cooled by the cooler 3 is sent to the cold through the air path 5. The freezing chamber 400, the switching chamber 200, the ice making chamber 300, and the refrigerating chamber 100 cool the respective storage chambers. The recirculating cold air in the refrigerating compartment 100 is circulated through a refrigerating compartment return air passage (not shown) to cool the vegetable compartment 500. Further, the return cold air is returned to the cooler 3 via a return air passage (not shown) through the vegetable compartment.

The temperature of each storage compartment is detected by a thermistor (not shown) provided in each storage compartment. Further, the size of the opening provided in the damper (not shown) of the air passage 5, the operation performance of the compressor 2, and the amount of air blown by the blower fan 4 are adjusted so as to be the preset temperature, thereby controlling each storage compartment. temperature.

The switching chamber storage box 201 is provided in the switching chamber 200 and can accommodate food. Similarly, the freezer compartment housing case 401 is provided in the freezer compartment 400 and can accommodate food. Further, in the vegetable compartment 500, the vegetable compartment storage box 501 is also housed to accommodate food. The storage box provided in each storage room may be one. However, in consideration of the capacity of the refrigerator 1, a plurality of storage boxes may be installed in each storage room in the case of improvement in convenience or refinement.

[Description of the structure of the operation panel]

Fig. 3 is a view showing a state in which one part of the operation panel 6 according to the embodiment of the present invention is partially exploded. As shown in FIG. 3, the operation panel 6 is provided with a transparent member 11 from the front side of the refrigerator 1, a decorative layer 33, a transparent electrode sheet 12, a support member 13, a holding member 14, an electronic substrate 15, and a holding member 16 which will be described later. It consists of overlapping in sequence.

The support member 13 supports the transparent electrode sheet 12, and the holding member 14 holds the transparent member 11 and the decorative layer 33. The electronic substrate 15 includes a microcomputer and a light source 30 (refer to Fig. 8). The support member 13 has a light that is emitted from the light source 30 toward the operation diagram 22 (refer to FIG. 8) so as not to be irradiated to the side. The function of the shielded wall shown. The holding member 16 is configured to hold the transparent member 11, the decorative layer 33, the transparent electrode sheet 12, the support member 13, the holding member 14, and the electronic substrate 15 in this order from the front side of the refrigerator 1, thereby constituting the operation panel 6. The operation panel 6 configured as described above is an electrostatic capacitance type touch sensor that operates to detect a change in electrostatic capacitance. Further, as the light-emitting source 30, an inexpensive light-emitting diode is often used, but another light-emitting source may be used. Moreover, the material of the transparent member 11 is not particularly limited as long as it is transparent to light such as glass or resin.

Further, the support member 13 corresponds to the "shielding wall" of the present invention.

Fig. 4 is a view schematically showing a cross section of a transparent member 11 and a decorative layer 33 which constitute a part of an operation panel according to an embodiment of the present invention. As shown in Fig. 4, on the back surface of the transparent member 11 (the inner side of the refrigerator 1), four printing layer layers of the display portion marking layer 17, the under color layer 18, the under color layer 19, and the back pressing layer 20 are formed. The decorative layer 33 is composed of these four layers. Further, each of the layers constituting the decorative layer 33 is decorated with a different color, and the area is printed, whereby the transparent member 11 is decorated.

The decorative layer 33 is decorated by performing printing, insert molding, in-mold molding, filming, or the like on the transparent member 11. Further, in the present embodiment, the decorative layer 33 is provided on the back surface of the transparent member 11, but the decorative layer 33 may be provided on the surface of the transparent member 11. In this case, the order of the layers of the decorative layer 33 is changed from the surface of the transparent member 11 (the front side of the refrigerator 1) to the underlying layer 19, the underlying layer 18, the display portion marking layer 17, and the back pressing layer 20.

Fig. 5 is a front elevational view showing a transparent member 11 constituting a part of the operation panel 6 of the embodiment of the present invention. As shown in Fig. 5, the display portion marking layer 17 (see Fig. 4) is a transparent printing layer, but is displayed on the upper left side. The portion mark 17a is provided with a display portion mark 17b at the lower left portion. Similarly, the undercoat layer 18 and the undercoat layer 19 are transparent printed layers, but the undertone layer 18 is applied with a ground color at the lower portion, and the underlying layer 19 is applied with a ground color at the upper portion. The ink of the undercoat layer 18 and the undercoat layer 19 is composed of a metal material such as a frequency material, pearls, and aluminum, and a transparent color called a diluent.

Further, the ink of the back pressing layer 20 is composed of a white pigment, a black pigment, and a diluent. The ink of the back pressing layer 20 is formulated, for example, at a ratio of 60% of a white pigment, 0.5% of a black pigment (black ink), and a ratio of a diluent of 39.5%.

As described above, by setting the composition ratio of the black pigment to, for example, 0.5%, the color-to-ground layer 18 of each of the transparent electrode sheet 12, the support member 13, and the holding member 14 which are in contact with the back surface of the transparent member 11 is suppressed. The influence of the underlying layer 19 can further satisfy the concealability.

Further, in the present embodiment, the component ratio of the black pigment is set to 0.5%, but the present invention is not limited thereto because the basic color system of the white color system is poor in concealability, and if it is less than 0.5%, it is permeable to the back surface. The structure is seen. On the other hand, the upper limit of the black pigment is set to 1.0% because the black pigment has a strong influence, and if it exceeds 1%, it is visually considered to be black (it is considered to be gray). Further, the black pigment is not limited to black ink, and may be any ink containing a navy blue system. Further, the ratio of the composition of the white pigment to the diluent affects the light emitted from the light source 30. However, since the appearance of the illustration is also affected by the brightness of the LED, it is not limited to the above ratio.

The ink that presses the layer 20 on the back side containing the black pigment does not contain a metal component or a chemically unstable component, so the back pressing layer 20 does not It will change color due to moisture, moisture and other oils invaded from the back. Further, by having the back surface pressing layer 20, the respective printing layers of the underlying layer 18 and the underlying layer 19 can be protected, and even if the ink of the underlying color contains a metal powder such as aluminum, no chemical reaction occurs.

Fig. 6 is a front elevational view showing a portion of the transparent electrode sheet 12 constituting one of the operation panels 6 of the embodiment of the present invention. As shown in Fig. 6, when the transparent electrode sheet 12 of the operation panel 6 is viewed from the front, the start button 21 is provided at the upper left portion, a plurality of operation diagrams 22 are provided at the lower portion, and the display portion 32 is provided at the center portion. When the operation panel 6 is operated, the start button 21 is touched, and the operation diagram 22 is turned on. In the illustration display unit 32, icons corresponding to various operations are displayed. Further, the start button 21 is provided at a position that coincides with the display portion indicator 17a shown in FIG. 5 when the operation panel 6 is assembled.

Fig. 7 is a view schematically showing a cross section of a transparent electrode sheet 12 constituting a part of the operation panel 6 of the embodiment of the present invention. As shown in Fig. 7, the cross-sectional structure of the transparent electrode sheet 12 is such that the pattern wiring layer 24, the transparent conductive ink layer 25, and the insulating ink layer 26 are sequentially laminated on the surface side (operation side) centering on the transparent substrate 23. Further, the printed layer (light-shielding layer) 27, the light-diffusing layer 28, and the glue-printing layer 29 are sequentially laminated on the back surface side (substrate side) centering on the transparent substrate 23. Further, the transparent electrode sheet 12 is supported by adhering the glue printed layer 29 to the support member 13.

The pattern wiring layer 24 is configured to electrically connect the transparent conductive ink layer 25 and the electronic substrate 15. The transparent conductive ink layer 25 detects changes in electrostatic capacitance, and the pattern wiring layer 24 transmits signals detected by the transparent conductive ink layer 25 to the electronic substrate 15.

Further, the transparent electrode sheet 12 corresponds to the "layered sheet" of the present invention. Moreover, the pattern wiring layer 24 corresponds to the "colored conductive wiring" of the present invention. Further, the transparent conductive ink layer 25 corresponds to the "conductive member" of the present invention.

Further, the transparent conductive ink layer 25 is printed on the portion of the start button 21, and the transparent conductive ink layer 25, the printed layer (light-shielding layer) 27, and the light-diffusing layer 28 are printed on the portion of the operation diagram 22.

Fig. 8 is a view schematically showing a cross section of the entire constituent elements of the operation panel unit constituting the embodiment of the present invention. As shown in FIG. 8, the light source 30 is provided on the electronic substrate 15 on the back side of each operation diagram 22. Further, when the operation diagram 22 is turned on, the illumination source 30 is turned on. The light of the light source 30 is displayed on the operation diagram 22 via the light diffusion layer 28, the illustrated printed layer (light shielding layer) 27, and the transparent conductive ink layer 25, and is visible. Further, when the operation 22 is turned on in this operation, if the operation 22 is touched by the finger F, the operation is accepted.

Further, by printing the light diffusion layer 28 on the transparent electrode sheet 12, the light emitted from the light source 30 is diffused in the light diffusion layer 28, and surface light can be emitted, and uniform display can be performed without using a member such as a conductive plate. Large size illustrations or text.

As described above, the decoration of the transparent member 11 of the operation panel 6 is composed of several layers of ink layers, and a small amount of black pigment is formulated on the back surface pressing layer 20. According to this aspect, the refrigerator 1 can be obtained. When the display unit of the operation panel 6 is not lit, the concealability is improved so that the characters are not fluoroscopic.

In addition, the ratio of the black pigment contained in the ink is set to 1% or less, and the lower limit of the reference amount is set to 0.5% or more, whereby the back surface pressing layer 20 absorbs the light source 30. Transparent member 11 when lighting The color of the back side is prevented from being transmitted in front of the transparent member 11. Thereby, the concealability of the back surface of the transparent member 11 can be ensured while reducing the pigment concentration of the undercoat layer 18 and the undercoat layer 19. Further, by slightly adjusting the amount of addition of the black pigment, the influence on the ground color can be reduced.

Further, in the undercolor layer 18 and the underlying layer 19, light is scattered by the particles colliding with the ink, but by reducing the concentration of the pigment, the attenuation of the light caused by the scattering becomes smaller than before because the transmittance of light increases. Therefore, there is a tendency to improve the visibility of the display portion such as the operation diagram 22 when the illumination source 30 is turned on.

11‧‧‧Transparent components

17a‧‧‧Showing department logo

17b‧‧‧ display department logo

18‧‧‧ground layer

19‧‧‧ground layer

Claims (12)

A refrigerator comprising: a transparent member: a decorative layer disposed on the inner side of the transparent member and decorated with ink of a black system having a reference amount or less; the laminated sheet is a conductive member that detects a change in electrostatic capacitance and transmits The colored conductive wiring, the transparent substrate and the printed layer of the signal detected by the conductive member are sequentially laminated and disposed on the inner side of the decorative layer; the shielding wall is disposed on the inner side of the laminated sheet, and Light that shields the light source of the printed layer from the rear is shielded; and the electronic substrate is disposed inside the shield wall, and a signal is detected from the colored conductive wiring, and the light source is provided. A refrigerator according to claim 1, wherein the decorative layer is composed of a plurality of printed layers. The refrigerator of claim 2, wherein the plurality of printed layers are composed of a first printed layer and a second printed layer disposed on a back side of the first printed layer, the first printed layer being a white system The reference amount of the ink of the second printing layer-based black system is 0.5% or more and 1% or less. The refrigerator according to any one of claims 1 to 3, wherein the conductive member and the illustrated printed layer are printed on the transparent member. The refrigerator according to any one of claims 1 to 3, wherein the laminated film further comprises a light diffusion layer that diffuses light irradiated from the light source. A refrigerator according to claim 5, wherein the light diffusion layer is laminated The side of the laminated sheet that is closest to the light source. A refrigerator comprising: a decorative layer decorated with ink of a black system having a reference amount or less; a transparent member disposed on an inner side of the decorative layer; and a laminated sheet for conveying a conductive member that detects a change in electrostatic capacitance The colored conductive wiring, the transparent substrate and the printed layer of the signal detected by the conductive member are sequentially laminated and disposed on the inner side of the transparent member; the shielding wall is disposed on the inner side of the laminated sheet, and Light that shields the light source of the printed layer from the rear is shielded; and the electronic substrate is disposed inside the shield wall, and a signal is detected from the colored conductive wiring, and the light source is provided. The refrigerator of claim 7, wherein the decorative layer is composed of a plurality of printed layers. The refrigerator of claim 8, wherein the plurality of printed layers are composed of a first printed layer and a second printed layer disposed on a back side of the first printed layer, the first printed layer being a white system The reference amount of the ink of the second printing layer-based black system is 0.5% or more and 1% or less. The refrigerator according to any one of claims 7 to 9, wherein the conductive member and the illustrated printed layer are printed on the transparent member. The refrigerator according to any one of claims 7 to 9, wherein the laminated film further comprises a light diffusion layer that diffuses light irradiated from the light source. The refrigerator according to claim 11, wherein the light diffusion layer is laminated on a side of the laminated sheet closest to the light source.