TWI616630B - Refrigerator - Google Patents

Abstract

Provided is a refrigerator capable of reducing the number of components of the operation display unit and improving productivity while reducing the cost and quality of the product even when the operation display unit surface is caused to emit light. It is a refrigerator including an operation display unit. The operation display portion (6) includes: a transparent member (11); a transparent electrode sheet (12) provided on the back side of the transparent member (11), a supporting member (13) supporting the transparent electrode sheet (12), and a plurality of light-emitting portions mounted thereon Source 25 and the electronic substrate (14) of the microcontroller. The transparent electrode sheet (12) includes: a transparent substrate (18); a transparent conductive ink layer (20) disposed on the transparent member (11) side of the transparent substrate (18); and an electron disposed on the transparent substrate (18) An icon printed layer (22) on the substrate (14) side; and a patterned wiring layer (19) connecting the transparent conductive ink layer (20) and the electronic substrate (14).

Description

refrigerator

The present invention relates to a refrigerator, and more particularly to the configuration of its operation display portion.

In recent years, the operation display portion (operation display panel) of the refrigerator has been dominated by the touch method. Most of the products, in the touch operation portion of the operation display portion, improve the visibility of the light source when the icon (icon) or text is displayed.

Further, the touch operation portion of the operation display portion has a throttle motor power, does not light when it is not normally operated, and lights up only at the time of operation.

However, in consideration of an elderly user, it is necessary to have a certain size of light-emitting area in the touch operation portion, the icon, and the character display portion, and in order to cause the surface to emit light, most of the light guide plates are used (for example, see Patent Document 1). .

Advanced technical literature Patent literature

Patent Document 1: Japanese New Registration No. 3172080

In the case where a large number of light guide plates are used to cause the surface to emit light, each of the touch operation portions, the icons, and the character display portions needs to have a light guide. For example, if there are 30 lighting elements, 30 light guide plate parts are required, and there are many parts, the productivity is deteriorated, the cost is increased, and the quality is unstable.

The present invention has been made to solve the problems as described above, and an object of the invention is to provide a refrigerator capable of reducing the number of components of an operation display unit, improving productivity, and reducing cost even when the operation display unit surface is caused to emit light. Stable quality.

A refrigerator includes an operation display portion including: a transparent plate member; a laminated sheet disposed on a back side of the transparent plate member to detect at least a change in electrostatic capacitance; and an electronic substrate disposed on the laminated sheet On the opposite side of the transparent plate member side, a plurality of light-emitting sources that illuminate the laminated sheet and a signal for detecting the signal detected by the laminated sheet as an operation signal and controlling the lighting of the plurality of light-emitting sources are attached The laminated sheet includes: a transparent substrate; a plurality of transparent conductive members disposed on the transparent plate member side of the transparent substrate to detect a change in electrostatic capacitance; and a light shielding layer disposed on the transparent The electronic substrate side of the substrate has a pattern for displaying at least one of a character and a pattern, and the light diffusion layer is provided on the electronic substrate side of the light shielding layer so as to be emitted from the light source. The light spreads.

According to the refrigerator of the present invention, the above-described configuration is employed in the operation display unit, whereby the components of the operation display unit can be greatly reduced, and productivity, cost reduction, and quality stabilization can be achieved.

1‧‧‧ refrigerator

2‧‧‧Compressor

3‧‧‧ cooler

4‧‧‧Send fan

5‧‧‧ Wind Road

6‧‧‧Operation display panel

11‧‧‧Transparent materials

12‧‧‧Transparent electrode

13‧‧‧Support parts

13a‧‧‧ shading wall

13b‧‧‧ openings

14‧‧‧Electronic substrate

15‧‧‧ holding parts

16‧‧‧Start button

17‧‧‧ operation icon

18‧‧‧Transparent substrate

19‧‧‧ patterned circuit layer

20‧‧‧Transparent conductive ink layer

21‧‧‧Insulating ink layer

22‧‧‧ icon printing layer (shading layer)

23‧‧‧Light diffusion printing layer

24‧‧‧ paste printing layer

25‧‧‧Light source

26‧‧‧ double wall

27‧‧‧Single wiring

28‧‧‧Composite wiring

29‧‧‧Other pattern line groups

30‧‧‧Air gap

31‧‧‧ Socket construction

32‧‧‧Bevel

33‧‧‧Scope of illumination

34‧‧‧ partition board

35‧‧‧Transparent electrode tab connector

36‧‧‧ Body wire connector

37‧‧‧Transparent electrode sheet connection

38‧‧‧ body wire

41‧‧‧Light guide parts

42‧‧‧Outer parts

100‧‧‧Refrigerator

200‧‧‧Switching room

300‧‧‧ ice making room

400‧‧‧Freezer

500‧‧ ‧ vegetable room

201‧‧‧Switching room storage box

301‧‧‧Ice compartment storage box

401‧‧‧Freezer storage box

501‧‧・Vegetable room storage box

Fig. 1 is a front view showing a refrigerator in accordance with a first embodiment of the present invention.

Fig. 2 is a side sectional view showing the refrigerator of Fig. 1.

Fig. 3 is an exploded perspective view of the operation display panel of Fig. 1.

Fig. 4 is a detailed view of the components of the operation display panel of Fig. 3, (a) showing the transparent electrode sheet and the supporting member, and (b) showing the supporting member and the electronic substrate.

Fig. 5 is an external view of the transparent electrode sheet of Fig. 3.

Fig. 6 is a cross-sectional view showing the transparent electrode sheet of Fig. 5.

Fig. 7 is a cross-sectional view showing the operation display panel of Fig. 1.

Fig. 8 is an external view of a transparent electrode sheet according to Embodiment 2 of the present invention.

Fig. 9 is an external view of a transparent electrode sheet according to a modification of Fig. 8.

Fig. 10 is a cross-sectional view showing an operation display panel including the transparent electrode sheet of Fig. 9.

Figure 11 is a cross-sectional view showing an operation display panel according to a third embodiment of the present invention.

Fig. 12 is an exploded perspective view showing the operation display panel of the fourth embodiment of the present invention.

Fig. 13 is a detailed view of the connector connecting portion of the operation display panel of Fig. 12.

Figure 14 is an exploded perspective view showing the operation display panel of the fifth embodiment of the present invention.

Fig. 15 is a front elevational view showing the refrigerator in the fifth embodiment of the present invention.

Embodiment 1.

Fig. 1 is a front view showing a refrigerator in accordance with a first embodiment of the present invention.

As shown in FIG. 1, the refrigerator 1 has a refrigerating compartment 100, a switching compartment 200, an ice making compartment 300, a freezing compartment 400, and a vegetable compartment 500. The refrigerating compartment 100 has an opening and closing door which is disposed at the uppermost portion. The switching chamber 200 has a drawer door that is disposed below the refrigerating compartment 100 and can be switched from a freezing temperature zone (-18 ° C) to a refrigerating (3 ° C), cooling (0 ° C), soft freezing (-7 ° C), and the like. Temperature zone. The ice making compartment 300 has a drawer door and is arranged side by side with the switching chamber 200. The freezing compartment 400 has a drawer door disposed below the switching compartment 200 and the ice making compartment 300. The vegetable compartment 500 has a drawer door and is disposed at the lowermost portion.

The operation panel 6 is provided on the surface of the door panel of the refrigerating compartment 100. The operation display panel 6 is composed of a display unit that adjusts the temperature of each chamber and the set operation switch, and displays the temperature of each chamber. In addition, the operation display panel 6 may be provided in the refrigerator 1, for example, the side of the refrigerating compartment 100. Further, the form of the refrigerator 1 is not limited to the example of Fig. 1, and for example, the switching chamber 200, the ice making compartment 300, or the position of the freezing compartment 400 and the vegetable compartment 500 may be reversed, and the like. The form of the refrigerator 1 is limited.

Fig. 2 is a side sectional view showing the refrigerator of Fig. 1.

As shown in FIG. 2, the refrigerator 1 has a compressor 2, a cooler 3, and a blower fan 4. The blower fan 4 blows the cold air cooled by the cooler 3 to the respective chambers in the refrigerator 1 through the air passage 5. The air passage 5 is an air passage for introducing cold air cooled by the cooler 3 into each chamber. That is, the cold air cooled by the cooler 3 is blown through the air passage 5 to the freezing compartment 400, the switching compartment 200, the ice making compartment 300, and the refrigerating compartment 100 to cool the respective compartments. The vegetable compartment 500 is circulated and cooled by the return air passage (not shown) in the refrigerating compartment 100, and is returned to the cooler 3 from the vegetable compartment return air passage (not shown). The temperature of each chamber is detected by a thermistor (not shown) provided in each chamber, and the damper (not shown) provided in the air passage 5 is adjusted. The opening degree, the capacity of the compressor 2, and the amount of blown air of the blower fan 4 are controlled so as to be preset temperatures.

A storage box 401 is provided in the freezing compartment 400, and food can be stored. A storage box 201 is provided in the switching chamber 200, and food can be stored. A storage box 501 is also provided in the vegetable compartment 500, and food can be stored. The number of the storage boxes in each of the chambers may be one, and when the overall capacity of the refrigerator 1 is to be improved, two or more may be provided.

Next, the configuration of the operation display panel 6 will be described.

FIG. 3 is an exploded perspective view of the operation display panel 6. 4 is a detailed view of the operation display panel 6 of FIG. 3, (a) showing the transparent electrode sheet 12 and the support member 13, and (b) showing the support member 13 and the electronic substrate 14. The operation display panel 6 detects the amount of change in the electrostatic capacitance and operates, and is constituted by a capacitance type touch detector. Further, the transparent electrode sheet 12 is composed of a laminated sheet in which layers having respective functions are laminated, and corresponds to the "layered sheet" of the present invention.

In FIGS. 3 and 4, the operation display panel 6 is composed of a portion to be described later: a transparent member 11, a transparent electrode sheet 12, a support member 13 for supporting the transparent electrode sheet 12, and an electronic substrate 14 having a microcontroller and a light source 25. The holding member 15 that holds these components is roughly divided into five elements. The material of the transparent member 11 is not particularly limited, and may be any material that is transparent to glass or resin and allows light to pass therethrough. Even if it is a decorative part that is decorated by printing or the like, it is possible to have the light source 25 The emitted light can be transmitted. The support part 13 can block the light of the adjacent icon and has the function of a light shielding wall. Moreover, most of the light-emitting diodes are used as the light-emitting source 25, but other light-emitting sources may be used. In addition, the transparent member 11 constitutes a part of the door piece of the refrigerator 1, which corresponds to the present invention. "Transparent plate parts". The support member 13 supports the transparent electrode sheet 12 and corresponds to the "support member" of the present invention. A microcontroller (not shown) receives a signal detected by the transparent electrode sheet 12 as an operation signal, and controls lighting of the plurality of light sources 25, and corresponds to the "control device" of the present invention.

Next, the transparent electrode sheet 12 will be described.

Fig. 5 is an external view of the transparent electrode sheet 12, and Fig. 6 is a cross-sectional view of the transparent electrode sheet 12. Further, Fig. 5 shows a state in which all the display elements of the transparent electrode sheet 12 are displayed, but only the start button 16 is displayed in the initial state. When the start button 16 of the transparent electrode sheet 12 is touched, the operation icon 17 is displayed (lights up). In addition, the fifth figure is shown in a state in which the black and white is reversed for the convenience of drawing. This is also the same in Figs. 8 and 9 to be described later.

The transparent electrode sheet 12 has a cross section of the transparent substrate 18, and the pattern line layer 19, the transparent conductive ink layer 20, and the insulating ink layer 21 are formed on the front side (operation side), and the icon is formed on the back side (substrate side). A printed layer (light shielding layer) 22, a light diffusion printed layer 23, and a paste printed layer 24. The transparent electrode sheet 12 constructed as described above is attached to the support member 13 so that the transparent electrode sheet 12 is supported. A transparent conductive ink layer 20 is printed on the start button 16, and a transparent conductive ink layer 20, an icon printed layer 22, and a light diffusion printed layer 23 are printed on the operation icon portion. The pattern wiring layer 19 is a colored wiring pattern that connects the transparent conductive ink layer 20 and the electronic substrate 14. Further, the pattern wiring layer 19 is disposed in parallel with a plurality of conductive wirings, and corresponds to the "complex conductive wiring" of the present invention, and the transparent conductive ink layer 20 is a device for detecting a change in electrostatic capacitance, and corresponds to "the plural" of the present invention. Transparent conductive member". The icon printing layer (light shielding layer) 22 has a pattern for displaying a plurality of shapes (see FIG. 5) of characters, pattern patterns, and the like, and corresponds to the "shading" of the present invention. Floor". The light-diffusing printed layer 23 is a device that diffuses light irradiated by the light-emitting source 25, and corresponds to the "light-diffusing layer" of the present invention.

Fig. 7 is a cross-sectional view of the operation display panel 6, showing the entire components of the operation display panel 6.

When the operation icon 17 is displayed (when the light is turned on), the light source 25 lights up, and the light passes through the transparent conductive ink layer 20, the icon printed layer 22, the light diffusion printed layer 23, and the transparent member 11, so that the icon is displayed and the icon can be displayed. Visually recognized. In addition, when the operation icon 17 is touched, it is operated. Further, the light source 25 is disposed for each of the start button 16, the operation icon 17, and the character (text group) formed on the icon printed layer 22, and is configured such that the light diffusion printed layer 23 or the icon or each character surface emits light.

By printing the light-diffusing printed layer 23 on the transparent electrode sheet 12, the light emitted from the light-emitting source 25 is diffused, and the surface light can be emitted. It is possible to make a large-sized icon and a character such as a character without using an element such as a light guide plate. Display evenly.

Further, by making the color of the support member 13 white or the like, the reflected light of the light source 25 can be effectively utilized in the icon portion, and the visibility can be further improved. At this time, in the case where a penetrating element is used as an element such as white, a part of the light of the light source 25 passes through the supporting part 13, and may be accidentally photographed to the side icon, when there is an adjacent icon. A double wall 26 can be formed on the support part 13. Thereby, the transmission of light can be suppressed. This double wall 26 corresponds to the "light shielding wall" of the present invention.

As described above, in the present embodiment, as shown in the cross-sectional view of the transparent electrode sheet 12 shown in Fig. 6, a plurality of elements (the transparent conductive ink layer 20 in which the electrostatic capacitance is changed, and the pattern line which is transmitted to the electronic substrate 14 are transmitted) The layer 19, the icon printed layer 22 that changes the light emitted by the light source 25 to the icon, and the light that causes the light to become a surface light The diffusion printed layer 23) is collectively printed on one transparent substrate (film substrate) 18, whereby the number of parts can be greatly reduced as compared with the past. Therefore, productivity improvement, cost reduction, and quality stabilization can be achieved.

Further, since the light source 25 is turned on and the transparent member 11 is passed through to display the icon and the character, the visibility is very good, and the display panel 6 is easily used by a user of any age. Further, by processing the shape of the transparent electrode sheet 12 and the support member 13, it is possible to achieve better surface light emission when the light guide plate is used, and it is possible to further improve the visibility without increasing the number of parts. In addition, the transparent member 11 may also constitute a part of the door piece of the refrigerator 1 as a decorative design part.

Embodiment 2.

Fig. 8 is an external view of a transparent electrode sheet 12 according to Embodiment 2 of the present invention.

There are various ways in which each wiring pattern of the pattern wiring layer 19 is described, and for example, the wiring of the start button 16 will be described. When the wiring of the start button 16 is realized by the pattern of the individual wiring 27, when the finger touches the wiring portion, the start button 16 reacts and a malfunction may occur. This is because the capacity of the individual wiring is reduced, and not only the transparent conductive ink layer 20 but also the wiring portion is in a state of high sensitivity, and as a result, the start button 16 reacts.

In the present embodiment, as in the composite wiring 28 of FIG. 8, the pattern line group 29 in which the pattern line and the plurality of lines are concentrated in parallel is concentrated on one side, whereby the capacity of the start button 16 is made larger than that of the individual wiring. The sensitivity of the wiring portion at the time is slow, and the malfunction of the start button 16 is prevented. Therefore, it is possible to prevent malfunction of each button by concentrating the wiring group. Such a wiring structure is also applicable to other operation buttons other than the start button 16.

Fig. 9 is a view showing a modification of the transparent electrode sheet 12 of Fig. 8, and Fig. 10 is a cross-sectional view showing the operation display panel 6 including the transparent electrode sheet 12 of Fig. 9.

As shown in Fig. 9, the shape of the transparent electrode sheet 12 (and the transparent substrate 18) is extended on the left side portion. Moreover, the individual wiring 27 of the start button 16 is caused to follow the extended portion. Further, as shown in Fig. 10, the extended portion of the transparent electrode sheet 12 is bent along the support member 13 to be attached to the support member 13, and an air gap 30 is formed between the transparent member 11 and the transparent electrode sheet 12. According to the above configuration, even if a finger touches a certain transparent member 11 of the wiring portion (particularly, the individual wiring 27), there is no change in electrostatic capacitance at all. By generating the air gap 30 like this, malfunction can be prevented.

Moreover, in the example of FIG. 10, the socket structure 31 is formed in the holding member 15, and the transparent electrode sheet 12 in a curved state is accommodated in this socket structure 31. When the transparent electrode sheet 12 is bent and attached to the support member 13, the adhesive force may be peeled off due to weakening of the adhesive force, but the transparent electrode sheet 12 can be maintained in a bent state by the socket structure 31 if it is peeled off. As a result, the state in which the air gap 30 is formed can be maintained.

Further, in the position where the air gap 30 is formed, any portion may have an effect of preventing malfunction due to the wiring portion, and therefore, it can be arbitrarily set in accordance with the order of the surrounding structure and the icon arrangement. For example, the air gap 30 may be formed in a portion of the composite wiring 28.

Embodiment 3.

Next, an example in which the visibility is further improved in the surface light emission will be described as the third embodiment.

Figure 11 is a cross-sectional view showing the operation display panel 6 of the third embodiment of the present invention.

As shown in Fig. 11, the light-shielding wall 13a is formed in the support member 13 to block the light emitted from the adjacent light-emitting source 25, and the slope 32 is provided in the light-shielding wall 13a. By providing the light shielding wall 13a as described above, a light guide portion formed between the adjacent light shielding wall 13a and the light shielding wall 13a forms a slope, and light can be prevented from reaching the transparent electrode sheet without blocking the light emitted from the light source 25. The icon 12 of the printed layer 22.

The angle of the inclined surface 32 is preferably larger than the irradiation range 33 of the light source 25, but there is also a structural limitation, and the visibility can be improved even if it is not at such an angle.

Further, in the same manner as in the first embodiment, when the color of the support member 13 (light shielding wall 13a) is white or approximately white, the reflected light of the light source 25 can be effectively utilized in the icon printing layer 22, and the visual recognition can be further improved. Sex.

Embodiment 4.

Fig. 12 is an exploded perspective view of the operation display panel according to the fourth embodiment of the present invention, and Fig. 13 is a detailed view of the connector connection portion of the operation display panel of Fig. 12.

As shown in FIGS. 12 and 13, a partition plate 34 is formed on the support member 13, and a transparent electrode tab connector 35 and a body lead connector 36 are provided on the electronic substrate 14, respectively. The transparent electrode sheet connecting portion 37 is a part of the transparent electrode sheet 12, and is connected to the composite wiring 28 of Fig. 8 to form a strip shape. The transparent electrode sheet connecting portion 37 is connected to the transparent electrode sheet connecting connector 35 through the opening portion 13b formed in the supporting member 13. In addition, the body wire 38 wound from the door piece of the refrigerator 1 is connected to the body wire connection connector 36. At this time, in a state where the transparent electrode sheet connecting portion 37 and the body wire 38 are in close contact with each other, when current flows into the body wire 38, an induced current is induced. When flowing into the transparent electrode sheet connecting portion 37, it is possible to arbitrarily operate the display panel 6 without operating the operation icons 17. In order to prevent this from occurring, the above-described partitioning plate 34 is provided such that the transparent electrode sheet connecting portion 37 and the body wire 38 are not in close contact with the supporting member 13. That is, the partitioning plate 34 is partitioned so that the transparent electrode sheet connecting portion 37 and the body wire 38 are not in contact to protect the transparent electrode sheet connecting portion 37. As a result, malfunction of the operation display panel 6 can be prevented. Further, the transparent electrode sheet connecting portion 37 corresponds to the "belt portion forming the plurality of conductive wirings" of the present invention formed on the transparent electrode sheet 12.

Embodiment 5.

Fig. 14 is an exploded perspective view showing the operation display panel of the fifth embodiment of the present invention, showing the components of the entire operation display panel, and Fig. 15 is a front view of the refrigerator to which the operation display panel of Fig. 14 is attached. In the fourteenth and fifteenth drawings, the same reference numerals as in the third and first drawings denote the same or corresponding parts.

The operation display panel 6 has a transparent member 11, a transparent electrode sheet 12, a light guiding member 41, an outer member 42, an electronic substrate 14, and a holding member 15, which are roughly divided into six elements. In the present embodiment, the light guiding member 41 and the outer member 42 are responsible for the function of the supporting member 13 of Fig. 3. The light guiding member 41 is a device for guiding the light emitted from the light source 25 to the transparent electrode sheet 12. The outer member 42 is a device for supporting the light guiding member 41.

The operation display panel 6 is configured as described above. After the transparent electrode sheet 12 is attached to the outer surface member 42, the transparent electrode sheet 12 and the electronic substrate 14 are connected by a connector, and then the light guiding member 41 can be assembled. Therefore, in a state in which the transparent electrode sheet 12 is attached to the outer peripheral member 42, the connector and the electronic substrate 14 are connected, so that operability can be improved and productivity can be improved.

Claims (9)

A refrigerator includes an operation display portion including: a transparent plate member; a laminated sheet disposed on a back side of the transparent plate member to detect at least a change in electrostatic capacitance; and an electronic substrate disposed on the laminate On the opposite side of the transparent plate member side of the sheet, a plurality of light-emitting sources that illuminate the laminated sheet and a signal detected by the laminated sheet are mounted as an operation signal to control the lighting of the plurality of light-emitting sources. The laminated sheet comprises: a transparent substrate; a plurality of transparent conductive members disposed on the transparent plate member side of the transparent substrate to detect a change in electrostatic capacitance; and a light shielding layer disposed on the transparent layer The electronic substrate side of the substrate has a pattern for displaying at least one of a character and a pattern, and a light diffusion layer is provided on the electronic substrate side of the light shielding layer so as to be irradiated from the light source. The light diffusion is performed; the plurality of conductive members, the light shielding layer, and the light diffusion layer are printed on one of the transparent substrates. The refrigerator according to claim 1, further comprising a shielding wall disposed between the plurality of light sources. The refrigerator according to claim 1, wherein the laminated sheet further comprises a plurality of signals for transmitting signals detected by the plurality of conductive members to the electronic substrate. Conductive wiring, the plurality of conductive wirings are arranged in parallel. The refrigerator according to claim 3, wherein a gap is provided between a portion of the laminated sheet in which the conductive wiring is disposed and the transparent plate member. The refrigerator according to claim 2, wherein the wall surface of the shielding wall is white. The refrigerator according to claim 2, wherein the shielding wall is formed to have an angle such that an opening width from the light source toward the transparent plate member is widened. The refrigerator according to claim 6, comprising: a supporting member disposed between the laminated sheet and the electronic substrate and supporting the laminated sheet; the shielding wall being formed on the supporting member. The refrigerator according to claim 7, wherein the laminated sheet has a strip-shaped portion forming the plurality of conductive wirings for connection with the electronic substrate; the supporting member is in the strip-shaped portion and The joint portion of the electronic substrate has a partition plate that is provided to protect the strip-shaped portion. The refrigerator according to claim 7 or 8, wherein the supporting member comprises: a light guiding member for guiding light from the light emitting source to the laminated sheet; and an outer peripheral member supporting the light guiding member.