JP2015055359A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator which displays an operation unit and a display unit on a front surface of a door front surface member uniformly by suppressing unevenness.SOLUTION: A refrigerator includes: a substrate front surface member 16 for covering a front surface of a substrate 15 accommodated in a substrate accommodation member 17; a plurality of operation units displayed on the substrate front surface member 16; a display unit displayed on the substrate front surface member 16 for displaying an operation result of the operation unit; light emitting means for radiating the display unit and the operation unit; a plurality of detection units 14 provided between the substrate front surface member 16 and the substrate accommodation member 17 at the back of the operation unit and detecting a change in electrostatic capacitance; first light guide means 34b provided between the detection units 14 and the substrate front surface member 16 and guiding light from the light emitting means to the operation unit; second light guide means 13b for guiding the light from the light emitting means to the display unit; and light shielding means 35 for shielding the light of the second light guide means 13b between the substrate 15 and the substrate front surface member 16.

Description

  The present invention relates to a refrigerator.

  As background art of this technical field, there is JP 2013-61121 A (Patent Document 1).

  In the summary column of Patent Document 1, “The door 10 of the refrigerator 1 is formed of a light-transmitting material on the door front plate 20. On the back side of the door front plate 20 are illuminated display units 49 a to 49 e and electrostatic capacitances. A display unit 40 that also serves as an operation unit is provided with system operation switches 46a to 46f, and the operation switch 46a overlaps with a mark 20a formed on the door front plate 20 that is always visible from the back side of the door front plate 20. The switches 46b to 46f are illuminated operation switches, and when the operation switch 46a accepts an operation, the illumination operation switches 46b to 46f and the current display state of the refrigerator 1 among the illumination display units 49a to 49e are displayed. Is changed from the unlit state to the lit state. "

JP2013-61121A

  However, paragraph 0043 of Patent Document 1 states that “the display unit 40 is configured as follows. As shown in FIG. 5, the display sheet 43 covers the front surface of the housing 42. The display sheet 43 is transparent, Characters and figures are printed at predetermined positions, and a plurality of light guide plates 44 and a plurality of light emitting diodes (hereinafter referred to as “LED”) for illuminating them are arranged on the back side of the display sheet 43. Is described.

  In this configuration, light leaks from the light guide plate at the time of lighting of the LED to another light guide plate adjacent to the light guide plate, and spots are generated in the irradiation range of the display sheet, thereby reducing visibility. In addition, a plurality of light guide plates are integrally molded with a transparent resin, and light leaks through a connection portion of the light guide plates.

  Further, the plurality of light guide plates are adjacent to each other, and when one of the light guide plates is turned on, the light may leak to the other light guide plate. When LEDs of different colors are used (for example, the characters on the display unit are blue and the characters on the operation unit are white), the light beams interfere with each other and affect the color appearance and appearance design.

  Then, this invention provides the refrigerator which displays an operation part and a display part on the front surface of a door front member uniformly, suppressing a spot.

  As an example, the present invention provides a storage chamber door that opens and closes the front opening of the storage chamber, a heat insulating material in the storage chamber door, a translucent door front member on the front surface of the storage chamber door, and a substrate that houses the substrate. A storage member, a substrate front member that covers the front surface of the substrate stored in the substrate storage member, a plurality of operation units represented on the substrate front member, and the substrate front member that displays operation results of the operation unit And a light emitting means for irradiating the display unit and the operation unit, and provided behind the operation unit and between the substrate front member and the substrate storage member. A plurality of detection units for detecting a change; a control unit for controlling the light emitting means based on a detection result of the detection unit; and provided between the detection unit and the substrate front surface member. A first light guiding means for guiding light from the light emitting means; and A second light guide means for guiding light from, characterized by comprising a light shielding means for blocking light of said second light guide means between the substrate front surface member and the substrate.

  ADVANTAGE OF THE INVENTION According to this invention, the refrigerator which displays an operation part and a display part on the front surface of a door front member, suppressing a spot uniformly can be provided.

It is a front view of the refrigerator which concerns on the Example of this invention. It is a figure showing the display state of the display part shown in the P section of FIG. 1, and an operation part. It is a figure of the anti-hinge side surface of the door shown in FIG. It is AA sectional drawing of the door shown in FIG. It is a figure explaining the structure of the glass plate which concerns on the Example of this invention, and a board | substrate assembly. It is a top view of the board | substrate assembly based on the Example of this invention. It is BB sectional drawing of the door shown in FIG. It is a figure explaining the substrate case which concerns on the Example of this invention. It is a disassembled perspective view of the board | substrate assembly based on the Example of this invention. It is a front view of the state which removed the film from the board | substrate assembly shown in FIG. It is a principal part enlarged view of the BB cross section of the door shown in FIG. It is a principal part longitudinal cross-sectional view of the light-shielding means based on the Example of this invention. It is a back perspective view of the 1st light guide means (operation part required light guide part) concerning the example of the present invention. It is a rear view of the film which concerns on the Example of this invention.

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

  First, Embodiment 1 will be described with reference to FIGS. FIG. 1 is a front view of a refrigerator according to an embodiment of the present invention, in which a display unit and an operation unit are not displayed. FIG. 2 is a diagram of display states of the display unit and the operation unit shown in the P part of FIG. FIG. 3 is a view of the anti-hinge side surface of the door shown in FIG. 4 is a cross-sectional view of the door shown in FIG.

  In FIG. 1, 1 is a refrigerator main body. The refrigerator main body 1 has a refrigerator compartment 2d, a freezer compartment 4d1, a vegetable compartment 5d, etc. in order from the top. A quick freezing room 4d2 is provided between the refrigerator compartment 2d and the freezing room 4d1, and an ice making room 4d3 is provided next to the quick freezing room 4d2.

  Moreover, the door which opens and closes this front opening is provided in the front opening of each store room. That is, the left refrigerator door 2a and the right refrigerator door 2b are provided at the front opening of the refrigerator compartment 2d, and the front openings of the freezer compartment 4d1, the quick freeze compartment 4d2, the ice making compartment 4d3, and the vegetable compartment 5d are respectively A freezer compartment door 4b, a quick freeze compartment door 4c, an ice making compartment door 4a, and a vegetable compartment door 5 are provided.

  The left refrigerator compartment door 2a and the right refrigerator compartment door 2b are rotatably supported by upper hinges 3 (left hinge 3a, right hinge 3b) provided on the upper part of the refrigerator main body 1, respectively. That is, what is called a French door comprised by the double-spread type is comprised.

  Moreover, the freezer compartment door 4b, the quick freeze compartment door 4c, the ice making compartment door 4a, and the vegetable compartment door 5 are each a drawer-type door, and can be pulled out together with the containers of the respective storage compartments.

  And the left refrigerator compartment door 2a and the right refrigerator compartment door 2b, the freezer compartment door 4b, the quick freeze compartment door 4c, the ice making compartment door 4a, and the vegetable compartment door 5 are provided with the glass plate 6a with transparency on the outer surface. Yes.

  As shown in FIG. 4, the foam heat insulating material 7 is filled and foamed between a door front plate (door front member) 6 made of a glass plate 6 a and a door inner plate 8. The plate thickness of the glass plate 6a which is the door front plate 6 is 2 mm to 3.5 mm in this embodiment. This plate thickness is a dimension in which the glass plate 6a is not broken or cracked by an impact generated when the refrigerator is assembled, when the refrigerator is transferred, and when the refrigerator is used.

  Further, when further securing the strength or reducing the plate thickness, the glass plate 6a may be subjected to a heat strengthening process, a chemical strengthening process, or the like. The glass plate 6a is an insulator.

  Next, in FIG.1 and FIG.2, 9 is an operation part. The operation unit 9 is operated by a user from the outside to set the room temperature of each storage room such as the refrigerating room 2d and the freezing room 4d1, rapidly cool the refrigerating room 2d and the freezing room 4d1, or the ice making device. Set on / off or quick ice making. Also, it is provided in the refrigerator compartment 2d, and the storage space is depressurized or hypoxic to adjust the temperature of the storage chamber (not shown) for maintaining the freshness of stored foods and suppressing oxidative degradation, or reducing the pressure or reducing oxygen. Or set to turn off the function. That is, when the user operates the operation unit 9, various functions of the refrigerator can be set.

  Reference numeral 10 denotes a display unit. The display unit 10 displays the input result from the operation unit 9 on the outside of the refrigerator body 1. Thereby, it is possible to confirm the operation performed by the user on the operation unit 9 or to confirm the states of various functions set in advance.

  The operation unit 9 and the display unit 10 are not provided with a special panel, but are provided on the glass plate 6a. That is, the glass plate 6a provided in the left refrigerator compartment door 2a is provided so that it may become a plane over the whole outer surface of this left refrigerator compartment door 2a including the operation part 9 and the display part 10. FIG.

  In other words, the operation unit 9 and the display unit 10 are directly provided on the door front plate 6 which is the glass plate 6a. For this reason, the conventional operation panel is omitted.

  Further, 9a is a display touch unit for lighting and displaying the operation unit 9 and the display unit 10, and by operating the display touch unit 9a, the operation unit 9 and the display unit 10 are changed from the unlit state of FIG. Transition to the lighting state of FIG. That is, an operation unit other than the display touch unit 9a that is always visible by the user performing operations such as pressing, touching, and bringing a finger closer to the display touch unit 9a (for example, the character display mark “MENU”). 9 and the characters and symbols of the display unit 10 are switched from the unlit state to the lit state and displayed on the glass plate 6a, and the operation unit 10 can be operated. As a result, characters and graphics that can be visually recognized at normal times are only displayed on the display touch unit 9a, and when the operation unit 9 and the display unit 10 are not lit, a simple appearance can be achieved, thereby improving the design. can do. Further, since the operation unit 9 and the display unit 10 are turned on only when necessary, an energy saving effect can be obtained.

  When the display touch unit 9a is operated, all characters, graphics, and the like on the operation unit 9 and the display unit 10 are lit and displayed. After the fixed time elapses (for example, about 0.1 to 1.0 seconds), the display unit 10 displays only the display indicating the setting state of the currently set functions, and the other displays are turned off. Furthermore, when the non-operation state elapses for a certain period of time (for example, 1 to 3 minutes), all characters and graphics on the operation unit 9 and the display unit 10 are turned off, and only the display touch unit 9a is visible. Thus, after operating the display touch part 9a that can be recognized at all times, the user confirms the function of the refrigerator and what can be changed by temporarily lighting all characters and the like once. it can.

  In addition, a colored paint is applied to the back surface of the glass plate 6a. Accordingly, the foam heat insulating material 7 is processed so as not to be seen from the front side, and the operation unit 9 and the display unit 10 are clearly recognized by the operation of the display touch unit 9a. It is composed.

  Next, the operation unit 9 and the display unit 10 will be described in more detail with reference to FIG.

  In FIG. 2, characters (power saving, freezing, refrigeration, ice making, cooling mode, vacuum chilled characters) and graphics of the operation unit 9 surrounded by a broken line are displayed on the film (substrate front member) 16 described later. Is a translucent character (hereinafter referred to as a translucent character) that is partially extracted and is transmitted to the front surface of the glass plate 6a only when an LED (light emitting diode) or the like on the substrate described later emits light. Displayed and recognized. The display touch portion 9a is represented by direct printing or the like on the back surface of the glass plate 6a. The operation unit 9 refers to the front surface (that is, the front surface side of the glass plate 6a) at a position facing the surface on which the character portion is formed. In addition, as a means for providing the display touch portion 9a on the back surface of the glass plate 6a, there are etching, inlaying and the like in addition to printing.

  Further, in FIG. 2, a part surrounded by a solid line is a display unit 10 that indicates a setting state of various functions in accordance with an input by the operation of the operation unit 9 described above. The characters on the display unit 10 ("electrical drawer in / out", "water supply", "outing, power saving", "strong, medium, weak", "rapid ice making, ice making, ice making stop", "quick refrigeration, quick freezing, “Vegetable room strong”, “Ice temperature, chilled”) and figures are translucent characters represented by partially removing the color of the film 16 as in the operation unit 9, such as LEDs on a substrate to be described later. Only when light is emitted, it is transmitted through the front surface of the glass plate 6a and can be recognized.

  The said film 16 is attached to the back surface of the glass plate 6a which is the door front plate 6 so that contact | adherence or a clearance gap may become very slight. Therefore, after operating the display touch portion 9a, the character display can be clearly confirmed from the front of the left refrigerator compartment door 2a through the glass plate 6a. In other words, the door has an excellent appearance and has a high visibility and an outer surface made of a flat glass plate.

  The operation unit 9 and the display unit 10 are provided side by side as shown in FIG. The display unit 10 is configured to display, as a function of the refrigerator body 1, that quick refrigeration or quick freezing is in operation.

  Furthermore, the character display of the display unit 10 is configured to be illuminated by an LED (light emitting diode) or the like on a substrate to be described later, and to project to the front surface of the glass plate 6a so as to be lifted up.

  Next, in FIG. 3, 11 is a lid provided on the side surface of the left refrigerator compartment door 2a. The lid 11 is provided on the opposite hinge side of the left refrigerator compartment door 2a, and is provided between the adjacent right refrigerator compartment door 2b. In this configuration, when the left refrigerator compartment door 2a and the right refrigerator compartment door 2b are closed, the lid 11 is not visible from the user.

  Next, in FIG. 4, 6 is a door front board, 7 is a foam heat insulating material, 8 is a door inner board, 12 is a board | substrate assembly. The substrate assembly 12 is configured to suppress the light diffusion of the operation unit light emitting unit 34 for displaying the operation unit 9, the display unit light emitting unit 13 for displaying the display unit 10, and the display unit light emitting unit 13. Light-shielding means 35, detection unit 14 for detecting a change in capacitance, determination unit (not shown), automatic control unit (not shown) including a microcomputer, etc. And a film 16 provided with translucent characters and figures, a substrate case 17 and the like. In this embodiment, the operation unit light emitting unit 34 and the display unit light emitting unit 13 are collectively referred to as a light emitting unit.

  The operation unit light-emitting means 34 includes an operation unit LED 34 a provided on the front surface of the substrate 15. In addition, on the front side of the detection unit 14, a transparent or translucent operation unit light guide unit (first light guide unit) 34b for diffusing light from the operation unit LED 34a is provided.

  The display unit light emitting unit 13 includes a display unit LED 13 a provided on the surface opposite to the operation unit light emitting unit 34, that is, on the back surface of the substrate 15. In addition, a transparent or translucent light guide for display part (second light guide means) 13b for guiding light from the display part LED 13a from the back side to the front side of the substrate 15 is provided.

  In addition, the material of the light guide part 34b for operation parts and the light guide part 13b for display parts should just be transparent or semi-transparent, such as resin and glass.

  The substrate 15 (including the detection unit 14) has one surface on the front side of the substrate 15 covered with a film (substrate front member) 16 and the other surface covered with a substrate case 17.

  The film 16 is provided in close contact with or in close proximity to the front surfaces of the operation portion light guide 34 b and the light shielding means 35. Further, the film 16 is configured to transmit light from the operation unit light emitting unit 34 and the display unit light emitting unit 13 from the back surface to the front surface and to the glass plate 6a side. Moreover, the film 16 should just be what the thickness is thin like a film form and a sheet form, and can permeate | transmit light in an uncolored part or a thin colored part.

  The detection unit 14 is paired with the operation unit 9 when assembled in the left refrigerator door 2a. That is, as shown in FIG. 4, the operation unit 9 is arranged on the front side and the detection unit 14 on the back side through the glass plate 6 a that is an insulator, the film 16, and the operation unit light guide unit 34 b.

  A determination unit (not shown) detects a change in capacitance between the operation unit 9 and the detection unit 14 in the substrate 15. When there is a change in the capacitance, an oscillation circuit that oscillates and changes in amplitude according to the change in the capacitance is included. As a result, the automatic control unit that has extracted the switch signal and the on / off signal output from the determination unit drives the load. Depending on the operation of the user simply passing in front of the operation unit 9 or the user wiping the front of the refrigerator (the left refrigeration room door 2a) for cleaning, the switch signal output by the determination unit, The off signal is not output.

  The glass plate 6a which comprises the door front board 6 is an insulator, and is a translucent board | plate material. When the display touch unit 9a is operated so that the front surface of the glass plate 6a is the operation unit 9, characters (or graphics) represented on the film 16 positioned in contact with or close to the back surface of the operation unit 9 of the glass plate 6a. Symbol) is irradiated on the front surface of the glass plate 6a by the light emitting means, and the operation content of the operation unit 9 is displayed.

  On the back surface of the glass plate 6a facing the operation unit 9, the detection unit 14 provided on the substrate 15 and connected to the determination unit is close to the glass plate 6a via the film 16 and the operation unit light guide unit 34b. Provided. Characters, graphic symbols, and the like of the display unit 10 provided side by side with the operation unit 9 are displayed on the film 16 that covers the surface of the substrate 15 so as to transmit light to the front surface of the glass plate 6a when irradiated by the light emitting means. Has been.

  The display of the characters (or graphic symbols) on the display unit 10 is clearly illuminated from the back surface by the display unit light emitting means 13 provided on the substrate 15. Further, when a hand or a finger touches the operation unit 9, the detection unit 14 on the substrate 15 senses a change in capacitance with the glass plate 6 a and notifies the determination unit on the substrate 15. And if a determination part detects an input, a load will be operated via an automatic control part.

  Here, in the case of rapid cooling, the load operated via the automatic control unit is a forced continuous operation of a refrigeration cycle, a forced continuous operation of a cold air circulation fan (not shown), or a forced forced operation of a damper that controls a cold air supply amount. Such as “open” control. By controlling these loads, the refrigerator compartment 2d is rapidly refrigerated or the freezer compartment 4d1 is rapidly frozen.

  Next, in FIG. 4, 18 is a case cover. The case cover 18 serves to isolate the substrate assembly 12 from the foam insulation 7. In addition, the substrate assembly 12 is held in the case cover 18 so that the film 16 on the surface of the substrate 15 is in close contact with or close to the glass plate 6a which is the door front plate 6.

  4 and 5 show a colored paint layer 19 having translucency applied to the back surface of the glass plate 6a. The colored paint layer 19 is provided over the entire back surface of the glass plate 6a.

  19a is a protective film. The protective film 19a protects the glass plate 6a from being scattered around even when a large impact is applied to the glass plate 6a and the glass is broken or cracked. Further, the protective film 19 a is stuck on the same surface as the colored paint layer 19. This prevents the foam heat insulating material 7 from seeing through from the front side of the door, thereby preventing the appearance from being impaired.

  Moreover, the short direction of the board | substrate assembly 12 and the short direction of the glass plate 6a are arrange | positioned so that it may cross | intersect. This is based on the property that when heat treatment is applied to the glass plate 6a, the distortion of the glass plate 6a tends to appear in the longitudinal direction. That is, in view of this property, the substrate assembly 12 is configured to suppress the influence of distortion of the glass plate 6a.

  Here, when the substrate assembly 12 is incorporated so that the longitudinal direction of the glass plate 6 a is along the longitudinal direction of the glass plate 6 a, the glass plate 6 a is affected by the distortion, and between the glass plate 6 a and the detection unit 14 on the substrate 15. It becomes easy to produce a gap in. Thereby, the subject that the input content from the operation part 9 is not transmitted well to the detection part 14 arises.

  Therefore, in the present embodiment, the longitudinal direction of the substrate assembly 12 is arranged in a direction crossing the longitudinal direction of the glass plate.

  In addition, an opaque paint layer 19b is applied to the back surface (foam insulation 7 side) of the colored paint layer 19 to prevent the foam insulation 7 from being seen through from the front side of the door, and the colored spots of the colored paint layer 19 Suppresses and stabilizes the color appearance. The opaque paint layer 19b and the colored paint layer 19 are of the same color, and have the same or darker color as the colored paint layer 19 and are opaque.

  The opaque paint layer 19b is not provided on a projection surface such as characters and figures of the operation unit 9 and the display unit 10 shown on the film 16. Specifically, the opaque paint layer 19a provided on the back surface of the colored paint layer 19 is not applied to the region corresponding to the operation unit 9 and the display unit 10, and instead corresponds to the operation unit 9 and the display unit 10. A transparent clear layer 19c is applied to the region. At this time, the end portion of the clear layer 19c is provided so as to overlap the end portion of the opaque paint layer 19a.

  Further, a protective film 19a is provided on the back surface of the opaque paint layer 19b so as to avoid areas corresponding to the operation unit 9 and the display unit 10. At this time, the end portion of the protective film 19a is provided so as to overlap the end portion of the clear layer 19c.

  That is, in the glass plate 6a, the area where the operation unit 9 and the display unit 10 are displayed is configured in the order of the colored paint layer 19, the clear layer 19c, and the protective film 19a. In the area where the operation unit 9 and the display unit 10 are not displayed, layers are formed in the order of the colored paint layer 19, the opaque paint layer 19b, and the protective film 19a.

  And the character, figure, etc. of the operation part 9 and the display part 10 which were represented on the film 16 which covers the front surface of the board | substrate 15 are closely_contact | adhered or located in the back side of the clear layer 19c. In other words, the opaque paint layer 19b is located outside the front projection position of the operation unit 9 and the display unit 10 shown on the film 16, and the colored paint layer 19 and the front projection position of the operation unit 9 and the display unit 10 are located. And a clear layer 19c on the back surface of the colored paint layer 19. With this configuration, it is possible to prevent the glass plate 6a from being damaged when the film 16 and the substrate 15 are incorporated into the back surface of the glass plate 6a.

  With this configuration, in a state where the light emission means 34 for the operation section and the light emission means 13 for the display section are not lit, characters and figures of the operation section 9 and the display section 10 are not displayed, and the front surface of the glass plate 6a is colored. The color of the paint layer 19 appears. It is possible to prevent the characters, graphics, and the like of the operation unit 9 and the display unit 10 and the foam heat insulating material 7 from being seen through, and the appearance design when the operation unit 9 and the display unit 10 are not displayed is improved.

  Further, the color of the opaque paint layer 19b and the color applied to the front surface of the film 16 are similar colors. The opaque paint layer 19b applied to the back surface of the colored paint layer 19 is not partially applied in order to cause the operation unit 9 and the display unit 10 to emit light and is provided, for example, to form a rectangular window. Yes. At this time, if the color of the opaque paint layer 19b and the color of the front surface of the film 16 are different colors or extremely different colors, the boundary between the opaque paint layer 19b and the film 16 is the door because of the different color tone. There is a risk of see-through from the front side.

  Accordingly, the color of the opaque paint layer 19b and the color of the front surface of the film 16 are the same color, and the color tone is unified to make the boundary inconspicuous and the appearance design is improved.

  In the present embodiment, the colored paint layer 19, the opaque paint layer 19b, and the clear layer 19c applied to the back surface of the glass plate 6a are paints, but a colored film or sheet may be used.

  Moreover, manufacturing cost can be reduced by making the door surface of a refrigerator into the glass plate 6a of 1 sheet. In addition, the clearance gap between the glass plate 6a and the operation part light guide part 34b distribute | arranged ahead of the detection part 14 needs to be 0.2 mm or less including the distortion of the glass plate 6a. When a gap of 0.2 mm or more is generated, the input content from the operation unit 9 may not be transmitted well to the detection unit 14.

  Moreover, the board | substrate assembly 12 is provided in the door of the refrigerator compartment 2d provided in the uppermost part of the refrigerator main body 1, ie, the left refrigerator compartment door 2a. This height position is a position out of reach of small children. In addition, the position is easy to see and operate for the user.

  Furthermore, in the case of this embodiment, the operation part 9 and the display part 10 do not protrude from the door front plate 6 as in the prior art. Thereby, it is difficult for a small child to recognize that the operation unit 9 and the display unit 10 are present. That is, mischievous operations by children can be reduced.

  FIG. 6 is a top view of the substrate assembly according to the embodiment of the present invention. FIG. 7 is a cross-sectional view of the door shown in FIG. FIG. 8 is a diagram for explaining the substrate case according to the embodiment of the present invention. FIG. 9 is an exploded perspective view of the board assembly according to the embodiment of the present invention. 10 is a front view of the substrate assembly shown in FIG. 9 with the film covering the front surface removed. FIG. 11 is an enlarged view of the main part of the BB cross section of the door shown in FIG. FIG. 12 is a longitudinal sectional view of a main part of the light shielding part. FIG. 13 is a perspective view for explaining the back surface of the operation portion light guide 34b. FIG. 14 is a diagram for explaining the back surface of the film 16.

  In the figure, 2a is a left refrigerator door, 6 is a door front plate, 7 is a foam insulation, 8 is a door inner plate, 11 is a lid, 12 is a substrate assembly, 16 is a film, and 17 is a substrate case.

  As shown in FIGS. 9, 10, and 11, the substrate assembly 12 includes a substrate case 17, a display unit light emitting unit 13, a substrate 15, a film 16, an operation unit light emitting unit 34, a light shielding unit 35, and the like. It is a thing. The operation unit light emitting means 34 and the light shielding means 35 are provided on the same surface of the substrate 15, that is, on the front side of the substrate 15.

  On the back side of the display unit 10, display unit light emitting means 13 for illuminating characters, graphics, and the like of the display unit 10 from behind is provided. The substrate 15 has a plurality of holes 15b, and is provided so that the light guide for display unit (second light guide means) 13b protrudes from the front of the substrate 15 from each of the plurality of holes 15b. It has been.

  In addition, a plurality of light guide portions 13b for the display unit are provided, and are provided so as to correspond to the characters and graphics of the display unit 10 and to be overlapped in the front and rear. The plurality of display light guides 13b are formed by integrally molding a light-transmitting resin, and each of the display light guides 13b is connected and formed on the back side of the substrate 15.

  In order to suppress the diffusion of the light guided by the display light guide 13b provided on the substrate 15, a light shielding means 35 made of a resin having a dark color tone (black color as an example) is provided between the substrate 15 and the film 16. Is placed. The light shielding means 35 is a plate-like resin material, and a plurality of hole portions 35a are formed so as to surround the periphery of the plurality of display portion light guide portions 13b over the entire circumference. In other words, the periphery of the display portion light guide portion 13b located on the front side of the substrate 15 is surrounded by the plurality of frame portions forming the hole portions 35a, so that the plurality of display portion light guide portions 13b are respectively Becomes an independent light guide. Furthermore, by surrounding the entire circumference of the side surface of the display light guide part 13b with the light shielding means 35, it is difficult for light to leak to the outside of the display light guide part 13b, and light is transmitted inside the display light guide part 13b. Reflecting and diffusing can be performed to suppress uneven illumination of characters displayed by light emission, and display uniformly. In addition, light leakage to the other light guide part 13b for display part and other adjacent display characters can be suppressed, and appearance design at the time of display and display errors can be prevented.

  Further, since the light shielding means 35 has a dark color tone (black as an example), the light from the display unit LED 13a can be reflected and diffused inside the display unit light guide unit 13b, and displayed characters, figures, etc. The illuminance unevenness can be suppressed and clearly displayed.

  As described above, by arranging the display unit light emitting means 13, the detection unit 14, the operation unit light emitting means 34, and the light shielding means 35 on the same surface of the substrate 15, the thickness of the substrate can be reduced.

  In the board assembly 12, the protruding height positions of the light shielding unit 35 and the light guide unit 13 b for the display unit to the front are the same or positioned so that the light shielding unit 35 is higher. Thereby, the light from the light guide part 13b for display parts can be interrupted | blocked by the light-shielding means 35, and it can suppress that light leaks to the other light guide part 13b for adjacent displays. Further, since the film 16 is provided in close proximity to or close to the light guide part 13b for the display unit, and the film 16 is configured to block the hole 35b of the light shielding means 35, the light guide part 13b for the display unit is used. The leakage of light can be suppressed.

  As a result, only one of the adjacent characters can be clearly displayed, the appearance design at the time of display of the display unit and the operation unit is improved, and the user can clearly see the setting state of the refrigerator This prevents misoperation.

  In the present embodiment, the display unit LED 13a has a light emission color such as blue, green, or orange, whereas the operation unit LED 34a has a white light emission color. The display portion light guide portion 13 b and the operation portion light guide portion 34 b are provided side by side on the front surface of the substrate 15. In this case, if the display unit LED 13a and the operation unit LED 34a emit light at the same time, the lights may interfere with each other, affecting the light projection or appearance of the characters or graphics.

  Therefore, the light shielding means 35 and the light guide part 34b for the operation unit are arranged so that the height positions of the front surfaces thereof are the same or the light shielding means 35 is higher. Thereby, it is possible to block each other's light and to clearly display the characters of the display unit 10 and the operation unit 9 having different light colors.

  Further, the position on the front side of the light shielding means 35 and the position of the front outer peripheral edge 21a of the substrate case 17 are the same or arranged so that the light shielding means 35 is higher on the front side. Thereby, when the film 16 is affixed to the outer edge part (flange part) 17a of the board | substrate case 17, the back surface of the film 16 and the front surface of the light-shielding means 35 can be adjoined or closely_contact | adhered. That is, as described above, the height of the light shielding means 35 and the display light guide portion 13b is the same or higher than the light shielding means 35. Therefore, when the film 16 is attached to the substrate case 17, The hole 35 a of the light shielding means 35 can be closed with the film 16.

  Thereby, light can be efficiently diffused in the individual light guide portions 13b for display, and the illuminance unevenness of characters to be displayed can be suppressed and clearly displayed. In addition, by suppressing leakage of light from one display light guide 13b to the other display light guide 13b, unintentional character projection display can be prevented, and the display unit 10 can perform light emission display. The appearance design is improved, and the display unit 10 can be clearly visually recognized to prevent erroneous operation of the operation unit 9.

  Further, as shown in FIG. 11, a recess 35 b for accommodating the resistor component 13 c provided on the front surface of the substrate 15 is formed on the back side of the light shielding means 35 and around the hole portion 35 a. That is, the resistance component 13 c of the display unit LED 13 a provided on the back surface of the substrate 15 is provided on the front surface of the substrate 15. The resistance component 13 c is located in the vicinity of the side portion of the display portion light guide portion 13 b on the front surface of the substrate 15, and is covered with a concave portion 35 b provided in the light shielding means 35. By providing the concave portion 35b, the front surface of the light shielding means 35 becomes flat without forming a convex portion in front of the light shielding means 35 for housing the resistance component 13c. it can.

  As shown in FIG. 12, the light shielding means 35 is formed with an outer edge end portion 35c on the film 16 side and an outer edge end portion 35d on the substrate 15 side having different angles and shapes. Specifically, the outer edge end portion 35c positioned on the film 16 side is formed at a substantially right angle, and the outer edge end portion 35d positioned on the substrate 15 side is formed in a rounded shape or an obtuse angle. Thus, the leakage of light from the light guide part 13b for display part can be suppressed by forming the outer edge part by the side of the film 16 at a substantially right angle.

  As shown in FIGS. 9 and 10, a detection unit 14 that detects a change in capacitance is located on the back surface of the operation unit 9. A plurality of detection units 14 are provided on the surface of the substrate 15, and an operation unit LED 34a is provided in the vicinity thereof. A region of the substrate 15 where the detection unit 14 and the operation unit LED 34a are provided is painted with a highly reflective color tone (white as an example). Thereby, the light of the operation unit LED 34a can be reflected, and the light can be diffused uniformly. The white area is not particularly limited, such as resist printing or silk printing.

  A transparent or semi-transparent light guide 34b for the operation unit is disposed so as to cover the front side of the detection unit 14, that is, the region painted in white as described above. The light irradiated from the operation unit LED 34a passes through the operation unit light guide 34b, so that translucent characters, figures, and the like included in the film 16 are transmitted and displayed on the glass plate 6a.

  As shown in FIG. 10, a plurality of operation unit LEDs 34 a are provided on the front surface of the substrate 15 and around the detection unit 14. A plurality of LED placement portions 34c are formed in the light guide portion 34b for operation portion arranged on the front side of the detection portion 14 corresponding to the positions where the LEDs 34a for operation portions are provided. The LED arrangement portion 34c is formed by an end concave shape portion or a hole shape portion of the operation portion light guide portion 34b.

  The operation unit LED 34a and the operation unit light guide 34b are arranged on the same surface of the substrate 15, and the light from the operation unit LED 34a is not irradiated toward the front side (the glass plate 6a side). As indicated by an arrow R, the light is incident from the LED arrangement portion 34c and irradiated sideways, and is uniformly diffused from the side portion of the operation portion light guide portion 34b onto the operation portion light guide portion 34b.

  Further, since the operation unit LED 34a and the operation unit light guide unit 34b are provided side by side in the width direction of the substrate 15 instead of in the front-rear direction of the substrate 15, the substrate assembly 12 can be thinned, and the back side of the substrate assembly 12 The thickness of the foam heat insulating material 7 filled in can be increased, and the heat insulating performance can be secured.

  As shown in FIG. 13, the operation unit light guide 34b is provided with a plurality of condensing recesses (first condensing units) 34d formed of elliptical grooves for collecting the light from the operation unit LEDs 34a. It has been. The light condensing recess 34d emits light so as to surround the display character or display graphic of the operation unit 9 (for example, a character-shaped graphic such as “power saving, freezing, refrigeration, ice making”, etc.) and is operated by the user. The part to be displayed is easy to understand and looks like a button. Since the light from the LED generally tends to concentrate on the end portion of the light guide member, a light condensing concave portion 34d formed of an end portion, that is, a concave groove, is provided at a position where light is to be collected and emphasized, and the display of the operation unit 9 The annular part surrounding the character or display figure is clearly displayed. In the present embodiment, the annular portion is elliptical, but it is not limited to this shape. Further, since the light of the operation unit LED 34a is also guided into the region surrounded by the light condensing recess 34d, the display characters or display figures of the operation unit 9 located in front of the region surrounded by the light condensing recess 34d are also projected. Is displayed.

  A plurality of condensing end concavities (second condensing portions) 34e each having a substantially triangular concavity are provided on the side adjacent to the light shielding means 35 of the light guide portion 34b for the operation unit. The substantially triangular tip portions of the condensing end recessed portions 34e are provided so as to be close to each other between a plurality of condensing recessed portions 34d provided adjacently or arranged at a predetermined interval. Generally, the light from the LED is concentrated on the end of the light guide member. Therefore, in the present embodiment, a plurality of first light collecting portions (light collecting portions for condensing light from the operation portion LED 34a at positions corresponding to the positions of the plurality of operation portions 9 and on the surface facing the substrate 15). (Condensing concavity) 34d and a second condensing part (condensing end concavity) in the arrangement direction of the plurality of first condensing parts 34d and located between the plurality of first condensing parts 34d. ) 34e. That is, by providing the condensing end concavity 34e close to the condensing concavity 34d, more light can be collected in the condensing concavity 34d.

  In addition, an inclined portion (not shown) that tapers toward the light shielding means 35 is provided on the back side of the side adjacent to or close to the light shielding means 35 of the light guide section 34 b for the operation section. This inclined portion can also collect the light of the operation LED 34a in the condensing concavity 34d, similar to the condensing end concavity 34e.

  In addition, among the plurality of operation unit LEDs 34a, the operation unit LEDs 34a arranged side by side in the longitudinal direction of the substrate 15 are arranged between the adjacent detection units 14 and in a direction orthogonal to the arrangement direction of the detection units 14. It arrange | positions so that it may become a position away from the edge part of the detection part 14 outside. That is, the light from the operation unit LED 34a is irradiated in the direction of the arrow R shown in FIG. 13, and the light having the highest directivity is irradiated between the detection units 14. This is because when the light is directly irradiated toward the center of the detection unit 14, light is concentrated on the center of the character, and illuminance spots such as the center of the displayed character being too bright or the end of the character becoming dark are generated. There is a fear. Therefore, by irradiating between the adjacent detection units 14 and irradiating the surroundings of the two adjacent detection units 14 with one operation unit LED 34a, the light is evenly diffused, and the display characters of the operation unit 9 are displayed. Or while suppressing the illuminance unevenness of a display figure (including the above-mentioned annular part) and displaying clearly, the number of LEDs used can be reduced.

  In addition, on at least one of the front surface and the back surface of the operation unit light guide unit 34b, in order to uniformly diffuse the light of the operation unit LED 34a to the operation unit light guide unit 34b, Processing to form a pattern).

  In addition, the LED placement portion 34c provided in the operation portion light guide portion 34b has a plurality of substantially triangular concave and convex portions or wave-shaped portions (not shown) on the end surface facing the irradiation direction of the operation portion LED 34a. It is formed. Thereby, the light of the operation unit LED 34a is uniformly diffused on the operation unit light guide 34b.

  As shown in FIG. 14, the back side of the film 16 has a white color, which diffuses light from the light emission means 34 for the operation section and the light emission means 13 for the display section, and suppresses the illuminance unevenness of the displayed characters. Thus, partial darkening or brightening can be suppressed and uniform display can be performed.

  Further, a white diffusive coating 36 is applied around the translucent characters of the operation unit 9 and the display unit 10 on the back surface of the film 16. Thereby, the light from the light emission means 34 for operation part and the light emission means 13 for display parts is diffused, the illuminance unevenness of the character displayed is suppressed, and it displays uniformly, suppressing that it becomes partially dark or bright. can do.

  The substrate 15 includes a detection unit 14, a determination unit (not shown), an automatic control unit (not shown) including a microcomputer, and the like.

  One side of the substrate 15 is covered with a film 16 and the other side is covered with a substrate case 17. The film 16 is in close contact with the detection unit 14. Moreover, the light of the LED light emission part 13 is permeate | transmitted.

  The detection unit 14 is paired with the operation unit 9 on the glass plate 6a side when being incorporated into the left refrigerator door 2a. That is, the operation unit 9 is provided on the front side of the glass plate 6a and the film 16 which are insulators, and the detection unit 14 is provided so as to overlap as shown in FIG. 4 so as to be on the back side (substrate 15 side through the film 16). Yes.

  Next, 20 is a slide member. As shown in FIG. 9A, the slide members 20 are provided at the four corners of the substrate case 17, respectively.

  Reference numeral 21 denotes a recess for accommodating the substrate 15. The recess 21 is provided in the substrate case 17 and has a depth in which a microcomputer or the like included in the substrate 15 is accommodated.

  The substrate case 17 is formed in a gray color tone (color by resin molding, painting, film transfer, or the like) that is a low reflection color tone. In the case where the color of the substrate case 17 is a color that easily reflects light, such as white, when the display portion LED 13a is caused to emit light, the light is reflected and diffused by the substrate case 17 on the back side of the display portion LED 13a, and light leakage May occur. Therefore, when the color of the substrate case 17 is a gray color that is difficult to reflect light, when only a specific character is displayed among the plurality of display characters written on the display unit 10, the adjacent character side is displayed. This prevents light from leaking and displaying characters that do not need to be displayed.

  The color of the substrate case 17 is not limited to gray, and may be any color that does not easily reflect light or a surface treatment. Moreover, you may paint in the location which opposes the light guide part 13b for display parts of the substrate case 17. FIG.

  22 is a connector for connecting between the board | substrate 15 and another board | substrate (not shown) provided in the refrigerator main body 1 side. The connector 22 is provided at the end of the substrate case 17 as shown in FIG.

  Reference numeral 23 denotes a locking portion provided on the bottom surface of the substrate case 17. The locking portion 23 is provided integrally with the resin substrate case 17. It has elasticity and is formed to be variable in the direction of arrow Q.

  Reference numeral 24 denotes an insertion portion (see FIG. 8). The insertion portion 24 is provided on the side surface of the door frame 2c of the left refrigerator compartment door 2a as shown in the figure. The insertion portion 24 is provided integrally with the case cover 18. In other words, the entrance portion of the space formed by the case cover 18 is configured by the insertion portion 24.

  11 is a lid for detachably closing the insertion portion 24. As shown in FIGS. 7 and 8, the lid 11 is provided so as to form a plane with the door frame 2c. Thereby, even if a user opens the left refrigerator compartment door 2a, the boundary of the lid | cover 11 and the door frame 2c is not conspicuous, and designability is not impaired. Moreover, it contributes not to impair design property by making the lid | cover 11 and the door frame 2c into the same color.

  Reference numeral 25 denotes substrate guide means (guide grooves) provided in the case cover 18. The guide groove 25 guides the substrate assembly 12 inserted from the insertion portion 24 by sliding it into the case cover 18. That is, the slide member 20 provided in the substrate case 17 is slid in the guide groove 25 to incorporate the substrate assembly 12 in the case cover 18.

  At this time, the dimension between the surface side of the substrate 15 and the glass plate 6a is varied in the vicinity of the terminal end portion 25a of the guide groove 25. That is, the guide groove 25 has a structure in which the end portion 25a guides the slide member 20 so that the detection portion 14 on the substrate 15 is in close contact with or close to the glass plate 6a. In other words, when the board assembly 12 is inserted into the insertion portion 24, the inlet 25b of the guide groove 25 slides the detection unit 14 at a position away from the glass plate 6a in consideration of the ease of incorporation of the board assembly 12. Thus, the end portion 25a is configured to rise so that the detection portion 14 is in close contact with or close to the glass plate 6a at the position where the assembly is completed.

  The substrate case 17 has a horizontally long rectangular shape. Then, only the slide member 20 as described above may cause the vicinity of the center of the substrate case 17 to bend, and the detection unit 14 on the substrate 15 may be separated from the glass plate 6a.

  Therefore, in the present embodiment, convex portions 17 b are provided on the upper and lower ends from the center of the back surface of the substrate case 17. Thereby, when the substrate case 17 is incorporated in the case cover 18, the convex portion 17b acts to correct the curvature of the substrate case. Therefore, the detection part 14 on the board | substrate 15 can be provided so that it may contact | adhere or adjoin to the glass plate 6a.

  Further, as shown in FIG. 8, a plurality of ribs 18 a are provided on the back surface of the case cover 18. That is, a plurality of ribs 18 a are provided on the side in contact with the foam heat insulating material 7.

  When the foam heat insulating material 7 is filled and foamed, the foaming pressure acts on the case cover 18. In this case, deformation of the case cover 18 due to foaming pressure can be suppressed by the plurality of ribs 18a. Further, the rib 18a guides the foam heat insulating material 7 to flow along the rib 18a, and thus acts so as not to inhibit the filling foam. Furthermore, since the foam heat insulating material 7 is uniformly filled so as to surround the rib 18a and hardened, the case cover 18 can be securely fixed.

  As described above, since the case cover 18 can be prevented from being deformed or displaced by filling and foaming of the foam heat insulating material 7, when the substrate assembly 12 is assembled in the case cover 18, the guide groove 25 and the slide member The positional deviation with respect to 20 can be suppressed. That is, the detection unit 14 on the substrate 15 can be provided so as to be in close contact with or close to the glass plate 6a.

  Next, the case where the board assembly 12 is assembled in the space 26 formed by the glass plate 6a and the case cover 18 will be described with reference to FIG.

  The slide member 20 on the inlet portion 25b side is lightly pushed along the guide groove 25 while being positioned at the inlet portion 25b of the guide groove 25. Then, the slide member 20 on the end portion 25a side reaches the end portion 25a of the guide groove 25, and the detection portion 14 (see FIG. 4) of the substrate assembly 12 is in close contact with or close to the glass plate 6a via the film 16. .

  As shown in FIG. 7, the sliding member 20 on the inlet portion 25b side rides on the guide portion 25c from the inlet portion 25b, and the locking portion 23 provided on the board case 17 gets over the stopper 27 against the elastic force. Then, it is locked to the stopper 27. Thereby, the board | substrate assembly 12 is fixed in the state which the detection part 14 contact | adhered or adjoined to the glass plate 6a which is the door front plate 6 via the film 16. FIG.

  Next, the board-side connector 22 is located on the insertion portion 24 side. As shown in FIG. 8, the cable line 28 such as a power cord is drawn into the case cover 18 in advance. Then, the cable line side connector 29 which is the tip of the cable line 28 is inserted into the connector 22 on the board side. Thereby, the cable wires 28 can be collected in the space 26. In this state, the lid 11 is attached and the assembling work is completed. In addition, when removing the board | substrate assembly 12 at the time of inspection and repair, what is necessary is just to perform operation reverse to the above.

  The cable wire 28 is drawn into the space 26 from the side of the foamed heat insulating material 7 of the door 2. As shown in FIG. 7, the inlet 30 to the space 26 is provided near the lid 11. Thereby, the work of grouping the cable wires 28 becomes efficient.

  In addition, the inlet 30 is positioned above the space 26 when the left refrigerator compartment door 2a is incorporated in the refrigerator main body 1. Thereby, the dew condensation water attached to the space 26 can be prevented from entering the foam heat insulating material 7 from the inlet 30.

  In addition, when it is set as the structure which forms the display part 10 by printing etc. directly on the back surface of the glass plate 6a, and removes the film 16, the following subject arises. In the step of filling the foam heat insulating material 7, the display unit 10 and the case cover 18 provided on the glass plate 6a are displaced by about 1 to 2 mm due to the foaming pressure. That is, since the board assembly 12 is positioned by the guide groove 25 provided in the case cover 18, between the display unit LED 13 a and the display unit 10 provided on the substrate 15, and the operation unit LED 34 a and the operation unit. There is a positional shift between each of them. Therefore, illumination spots are generated in the display unit 10 and the call operation unit 9, which is not preferable in appearance. In addition, it is not preferable in view of appearance to enlarge the character display portion in consideration of the positional deviation.

  That is, the substrate assembly 12 is composed of the substrate case 17, the substrate 15, the film 16, and the like, so that even when the case cover 18 is displaced in the process of filling the foam heat insulating material 7, the display unit 10 and the operation are performed. This is a configuration in which the illumination spots of the part 9 are hard to occur.

  In the present embodiment, the structure in which the substrate assembly 12 is brought into close contact with or close to the glass plate 6a by the relationship between the four pieces of slide members 20 provided in the substrate case 17 and the guide grooves 25 provided in the case cover 18 has been described. However, this is an example for bringing the detection unit 14 into close contact with or close to the glass plate 6a, and is not limited to this configuration. Further, the position where the insertion portion 24 is provided is not limited to the door side surface described above, and may be the door bottom surface, top surface, or back surface (foaming heat insulating material side).

  Further, a chamfered portion 16a (inclined portion) is provided at the end portion of the film 16 positioned on the insertion portion 24 side in the assembled state (the upper and lower ends on the right side in front view in FIG. 9 and the upper left and lower end portions in the rear view in FIG. 14). Is formed. That is, the end portion of the storage chamber door 2a is provided with an insertion portion 24 that integrally incorporates and arranges the film 16, the substrate 15, and the substrate case 17 at a predetermined position, and the film 16 is positioned on the insertion portion 24 side at the predetermined position. An inclined portion (chamfered portion) 16a is provided at the upper and lower end portions. Thereby, when pulling out the board assembly 12 from the insertion part 24 at the time of inspection / repair, it can suppress that the edge part of the film 16 is caught in the edge part of the insertion part 24, and peeling from the board | substrate case 17. FIG.

  Further, the chamfered portion 17a1 (inclined portion) is also formed at the end portion of the substrate case 17 positioned on the insertion portion 24 side in the assembled state (upper right and lower end portions in front view in FIGS. 9 and 10). When the product 12 is pulled out from the insertion portion 24, the end of the board assembly 12 is prevented from being caught by the edge of the insertion portion 24, and the removal work of the substrate assembly 12 becomes easy. In other words, the end portion of the substrate assembly 12 is located at the edge of the insertion portion 24 without forming a large space for the insertion portion 24 by the chamfered portion 16a at the end portion of the film 16 and the chamfered portion 17a1 at the end portion of the substrate case 17. The removal of the board assembly 12 is facilitated by suppressing the catching.

  Next, in FIG. 9, the substrate assembly 12 includes a substrate case 17, an LED light emitting unit 13, a substrate 15, a film 16, and the like. Then, the substrate 15 is accommodated in the recess 21 of the substrate case 17. The front surface of the substrate 15 is stored so as to be flush with the flange portion 17 a provided on the substrate case (substrate storage member) 17. In this state, the adhesive-attached film 16 is tightly fixed to the surface 15 a of the substrate 15 and the flange portion 17 a of the substrate case 17.

  Accordingly, there is no space portion between the detection portion 14 on the substrate 15 and the film 16 or the proximity thereof.

  Next, the configuration of the display unit light emitting means 13 will be described with reference to FIG. On the opposite surface of the substrate 15 to the detection unit 14, a display unit LED 13 a is arranged. A hole 15b is provided in the vicinity of the display LED 13a. An LED translucent portion 13a is installed in the hole portion 15b. The film 16 is disposed on the opposing surface of the hole 15b.

  Thereby, when the display unit LED 13a is turned on, the light is incident on the root 13b1 of the display unit light guide unit 13b disposed on the opposite surface of the display unit LED 13a. The display light guide 13b is injection-molded with a polystyrene transparent resin or an acrylic transparent resin material. Therefore, as shown by the arrow in FIG. 11, the light guide section 13b for display section is refracted and transmitted to light the surface 13b2 of the light guide section 13b for display section. Thereby, the display character of the film 16 is illuminated.

  In addition, as shown also in FIG. 9, it is necessary to illuminate all the display characters corresponding to display characters such as rapid refrigeration and quick freezing printed on the film 16. Therefore, in this embodiment, as shown in FIG. 9, the substrate 15 is provided with a plurality of holes 15b and display unit LEDs 13a, and a plurality of display unit light guides 13b are provided so as to correspond to the plurality of holes. Is provided.

  According to this configuration, the thickness dimension of the substrate case 17 incorporating the substrate 15 can be suppressed, and the thickness of the foam heat insulating material 7 can be sufficiently ensured.

  Although not shown, when a lighting instruction is given from the automatic control unit, the display unit 10 is illuminated from the back side of the film 16 and is lit up through the glass plate 6a to make the characters easier to see.

  In other words, the LED light emitting unit 13 in this embodiment is lit only when the detecting unit 14 detects the capacitance. Then, in an actual use state, it is difficult for a small child to recognize that the glass plate 6 a itself is the operation unit 9. Therefore, mischief and the like can be prevented.

  In addition, the character represented by printing etc. on the film 16 can be visually recognized by the user through the glass plate 6a.

  The LED light emitting unit 13 is turned on as follows. That is, when the user touches the operation portion 9 of the character portion that is visible on the front surface through the glass plate 6a, the detection unit 14 detects this. Then, a determination part and an automatic control part operate | move, for example, when quick refrigeration is instruct | indicated, it will light to illuminate the character part of "rapid refrigeration" of the display part 10. FIG.

2a Left refrigerator compartment door (storage compartment door),
2c door frame,
6 Door front plate (door front member),
6a glass plate,
7 Foam insulation,
8 Door inner plate,
9 Operation part,
9a Display touch part,
10 display section,
11 Lid,
12 Board assembly,
13 Display unit light emitting means (light emitting means),
13a LED for display,
13b Light guide part for display part (second light guide means),
13b1 The root of the light guide for the display unit,
13b2 the surface of the light guide for the display unit,
13c resistance component,
14 detector,
15 substrate,
15b hole,
16 film (substrate front member),
16a chamfered portion (inclined portion),
17 substrate case (substrate housing member),
17a flange (front outer peripheral edge),
17a1 chamfered portion (inclined portion),
18 Case cover,
19 Colored paint layer,
19a protective film,
19b Opaque paint layer,
19c clear layer,
20 slide members,
21 recess,
22 connectors,
23 locking part,
24 insertion part,
25 guide grooves (substrate guide means),
25a termination,
25b entrance,
25c guide part,
26 space,
27 stopper,
28 Cable wire,
29 Cable line side connector,
30 service entrance,
34 Light emitting means for operation section (light emitting means),
34a LED for operation unit,
34b Light guide part for operation part (first light guide means),
34c LED arrangement part,
34d Condensing concave part (first condensing part),
34e Condensing end concave portion (second condensing portion),
35 light shielding means,
35a hole,
35b recess,
35c outer edge (film side),
35d outer edge (board side),
36 Diffuse coating

Claims (7)

A storage room door for opening and closing the front opening of the storage room;
Thermal insulation in the storage room door;
A translucent door front member on the front surface of the storage room door;
A substrate storage member for storing the substrate;
A substrate front member covering the front surface of the substrate stored in the substrate storage member;
A plurality of operation parts represented on the substrate front member;
A display unit displayed on the substrate front member for displaying an operation result of the operation unit;
Light emitting means for irradiating the display unit and the operation unit;
A plurality of detection units provided behind the operation unit and between the substrate front surface member and the substrate storage member to detect a change in capacitance;
A control unit for controlling the light emitting means based on a detection result of the detection unit;
A first light guide unit provided between the detection unit and the substrate front surface member to guide light from the light emitting unit to the operation unit;
A second light guiding means for guiding light from the light emitting means to the display section;
A refrigerator comprising: a light shielding unit that blocks light from the second light guiding unit between the substrate and the substrate front surface member.   A plurality of the display portions, a plurality of the second light guide means corresponding to the plurality of display portions, and the light shielding means provided around the second light guide means The refrigerator according to claim 1.   The first light guiding means and the light shielding means have the same height position from the front of the substrate to the front, or the light shielding means is made higher from the front of the substrate to the front than the first light guiding means. The refrigerator according to claim 1 or 2, wherein the refrigerator is characterized.   The refrigerator according to any one of claims 1 to 3, wherein the light shielding means is located at the same position as the front outer peripheral edge of the substrate storage member or ahead of the front outer peripheral edge. The light emitting means includes an operation unit LED that emits light from the operation unit and a display unit LED that emits light from the display unit.
The operation unit LED and the detection unit are disposed on a front surface of the substrate,
The display unit LED is disposed on the back surface of the substrate,
The substrate is characterized in that a hole is formed around the display unit LED and at a position of an opposing surface of the display unit, and the display unit light guide means is disposed in the hole. The refrigerator according to any one of claims 1 to 4. A plurality of the detection units are arranged and provided,
The operation unit LEDs are arranged between the plurality of arranged detection units and arranged outside the edge of the detection unit in a direction orthogonal to the arrangement direction of the detection units. The refrigerator according to claim 5. The first light guide means includes
A plurality of first light condensing units that condense light from the operation unit LEDs on a surface corresponding to the position of each of the plurality of operation units and facing the substrate;
A second light condensing part located in the arrangement direction of the plurality of first light condensing parts and between the plurality of first light condensing parts;
The refrigerator according to claim 5 or 6, further comprising: