JP5948184B2 - refrigerator - Google Patents

Description

  The present invention relates to a refrigerator.

  As background art in this technical field, there are Japanese Patent No. 4948578 (Patent Document 1), Japanese Patent No. 4421217 (Patent Document 2), and Korean Published Patent No. 10-2008-41036 (Patent Document 3).

  In Patent Document 1, a door front plate having light transmissivity provided on the front surface of the storage chamber door, an operation portion of the door front plate, and provided in front of the substrate for displaying an operation result of the operation portion. A film, illumination means provided on the substrate for irradiating the film toward the door front plate, a detection unit provided behind the door front plate of the operation unit to detect a change in capacitance, And a control unit that controls the illumination unit based on a detection result of the detection unit.

  Patent Document 2 describes a configuration of a capacitive mirror type touch switch with a half mirror, in which a half mirror is deposited on an acrylic plate by vacuum deposition of 100 megaohms or more to form a non-conductive type half mirror panel. Yes.

  Patent Document 3 describes that a metal vapor-deposited film is provided on plastic or glass that is the exterior of a refrigerator.

Japanese Patent No. 4948578 Japanese Patent No. 4412217 Korean Published Patent No. 10-2008-41036

  However, in patent document 1, it does not consider about providing a half mirror and a metal vapor deposition film in the door of a refrigerator.

  Also, in the case of adopting an electrostatic operation means for detecting a magnetic field formed by the user's finger and having a conductive deposited film between the user's finger and the detection unit (electrode) A plurality of electrodes arranged close to each other simultaneously detect a change in capacitance, and a phenomenon occurs in which it is not possible to distinguish which one of the plurality of electrodes has operated the operation unit.

  Therefore, in patent document 2, the kind and ratio of a metal are adjusted so that the resistance of a metal vapor deposition film may be 100 megaohms or more.

  However, in patent document 2, it does not consider about providing a half mirror in the door of a refrigerator, and cannot maintain the physical stability and chemical stability of a vapor deposition film. The physical stability of the deposited film is to prevent the deposited film from being damaged when the refrigerator is assembled. The chemical stability of the deposited film is to prevent the metal film from being eroded and deteriorated when the user operates the operation part with wet fingers or when the door surface is cleaned with water or detergent. That is.

  The door surface employing the half mirror may be more easily noticeable of dirt, fingerprints, etc. than a general door surface, and it is assumed that the frequency of the user cleaning the door surface is higher. Therefore, when the user cleans the door surface, water, detergent, etc., wrap around from the gap between the edge of the door front plate and the door frame to the back side of the door front plate, and the metal deposition film changes chemically, In the long term, the hue of the door surface may change partially and appear. In addition, it is difficult to maintain the adhesion between the door front plate and the door frame, and it is difficult to completely prevent intrusion of water, detergent, or the like.

  Further, Patent Document 3 describes lightening and curved surfaces of the door, but does not consider the case where a capacitive operation unit is provided.

  Then, an object of this invention is to provide the refrigerator which improved the external appearance design property and reliability by providing a metal vapor deposition layer in a door front board, without impairing operativity and cleaning property.

In order to solve the above problems, for example, the configuration described in the claims is adopted. The present application includes a plurality of means for solving the above-described problems. For example, a storage room provided in a refrigerator main body, a storage room door that opens and closes the opening of the storage room, and a storage room door A front light-transmitting door front plate, a frame connected to an end of the door front plate, a metal vapor deposition layer provided on the back surface of the door front plate, and the metal vapor deposition layer at a position facing the frame A colored paint layer partially coated to the outside of the end of the metal deposition layer, and the lower frame of the frame includes a front flange, a rear flange, and the A connecting portion that connects the front flange and the rear flange, the end of the metal vapor deposition layer is lower than the upper end of the front flange on the connecting portion side, and the end of the colored paint layer is Under the door front plate from the outside of the edge of the metal deposition layer Characterized in that the range of parts.

  ADVANTAGE OF THE INVENTION According to this invention, the refrigerator with improved external appearance design property and reliability can be provided by providing a metal vapor deposition layer in a door front board, without impairing operativity and cleaning property.

It is a front view of the refrigerator which concerns on Embodiment 1 of this invention. It is AA sectional drawing of FIG. 1 explaining the structure of the door front board which concerns on Embodiment 1 of this invention. It is the P section enlarged view of FIG. It is a figure of the side opposite to the hinge of the door shown in FIG. It is AA sectional drawing of the door shown in FIG. It is a front view of the refrigerator which concerns on Embodiment 2 of this invention. It is BB sectional drawing of FIG. 6 explaining the structure of the door front plate which concerns on Embodiment 2 of this invention. It is BB sectional drawing of the door shown in FIG. It is sectional drawing of the lower end part of the left refrigerator compartment door which concerns on Embodiment 3 of this invention. It is a principal part expanded sectional view of FIG. 9 in Embodiment 3 of this invention. It is a principal part expanded sectional view of FIG. 9 in Embodiment 4 of this invention. It is a principal part expanded sectional view of FIG. 9 in Embodiment 5 of this invention.

(Embodiment 1)
First, Embodiment 1 will be described with reference to FIGS. FIG. 1 is a front view of a refrigerator according to Embodiment 1 of the present invention. 2 is a cross-sectional view taken along the line AA of FIG. 1 for explaining the configuration of the door front plate according to the first embodiment. FIG. 3 is an enlarged view of a portion P in FIG. 4 is a view of the side opposite to the hinge of the door shown in FIG. FIG. 5 is a cross-sectional view taken along the line AA of the door shown in FIG.

  In FIG. 1, 1 is a refrigerator main body. The refrigerator main body 1 has a refrigerator compartment 2, a lower refrigerator compartment 5, and a vegetable compartment 5d in order from the top. An upper freezer room 3 is provided between the refrigerator compartment 2 and the lower freezer room 5, and an ice making room 4 is provided next to the upper freezer room 3.

  Moreover, the door which opens and closes this front opening is provided in the front opening of each store room. That is, the front opening of the refrigerator compartment 2 is provided with a left refrigerator compartment door 2a and a right refrigerator compartment door 2b, and the front opening of each of the lower freezer compartment 5, the upper freezer compartment 3, the ice making compartment 4, and the vegetable compartment 6 is provided. A lower freezer compartment door 5a, an upper freezer compartment door 3a, an ice making compartment door 4a, and a vegetable compartment door 6a are provided.

  The left refrigerator compartment door 2a and the right refrigerator compartment door 2b are rotatably supported by a left hinge 2a1 and a right hinge 2b1 provided on the upper part of the refrigerator body 1, respectively, and are so-called double doors. It constitutes a French door.

  Further, the lower freezer compartment door 5a, the upper freezer compartment door 3a, the ice making compartment door 4a, and the vegetable compartment door 6a are each a drawer-type door and can be pulled out together with the storage containers in the respective storage compartments.

  And the left refrigerator compartment door 2a and the right refrigerator compartment door 2b, the lower freezer compartment door 5a, the upper freezer compartment door 3a, the ice making compartment door 4a, and the vegetable compartment door 6a have the light-transmitting door front plate 7 on the outer surface. Is provided. The door front plate 7 can be formed of glass or resin having a property of transmitting light. In the present embodiment, the case of the glass plate 7a will be described.

  A frame is connected to the end of the door. On the left and right sides, a left frame 50a and a right frame 50b that form the outer appearance are coupled to the left and right sides of the glass plate 7a, respectively, and an upper frame 50c and a lower frame 50d that form the upper and lower surfaces are formed on the glass plate 7a. Are connected to each other.

  Further, as shown in FIGS. 1 and 5, the space formed by the door front plate 7, the door liner 20, the left side frame 50a, the right side frame 50b, the upper frame 50c, and the lower frame 50d is filled with the foam heat insulating material 8. It is foaming. In addition, the structure which provides the vacuum heat insulating material 32 (details are mentioned later) with the foam heat insulating material 8 may be sufficient.

The plate thickness of the glass plate 7a 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 7a 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 strengthening the strength or reducing the plate thickness, the glass plate 7a may be subjected to a heat strengthening process, a chemical strengthening process, or the like. The glass plate 7a is an insulator.

  Next, in FIGS. 1 and 3, 9 is an operation unit. The operation unit 9 is operated by the user from the outside to set the room temperature of each storage room such as the refrigerating room 2 and the lower freezing room 5 or rapidly cools the refrigerating room 2 or the upper freezing room 3. The presence or absence of ice making in the ice making chamber 4 and the size of ice are set. In addition, the temperature of a storage room (not shown) that is provided in the refrigeration room 2 and maintains the freshness of stored foods and suppresses oxidative degradation by reducing the storage space to a reduced pressure or low oxygen state, 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 7a. That is, the glass plate 7a provided in the left refrigerator compartment door 2a is provided so that it may become a plane over the whole outer surface of the left refrigerator compartment door 2a including the operation part 9 and the display part 10. FIG.

  In other words, the display unit including the operation unit 9 and the display unit 10 is directly provided on the door front plate 6 which is the glass plate 7a. For this reason, the conventional operation panel is omitted.

  In the present embodiment, the operation unit 9 and the display unit 10 are vertically divided and arranged horizontally. However, the present invention is not limited to this. For example, a configuration in which the operation unit is arranged on either the left, right, top, or bottom of the display unit, or a configuration in which the display unit is arranged vertically and the operation unit is arranged on any of the left, right, top, or bottom of the display unit. Further, a touch screen display panel or a liquid crystal display unit may be employed.

  Next, the configuration of the glass plate 7a will be further described. In FIG. 2, the metal vapor deposition layer 7b which can reflect light is provided in the back surface of the glass plate 7a. The metal vapor deposition layer 7b is provided including the back surface of the display part 10, and the colored coating layer 7c is provided in the rear surface of the metal vapor deposition layer 7b so that the back projection position of the display part 10 may be avoided. The colored paint layer 7c can be visually recognized from the front surface of the glass plate 7a, and becomes a door with excellent appearance that gives a deep color tone and a high-quality texture by transmitting through the glass plate 7a.

  As described above, in order to maintain the physical stability and chemical stability of the metal vapor-deposited layer 7b, the translucent paint layer 7d is provided so as to cover the metal vapor-deposited layer 7b on the back surface of the display unit 10, and the colored paint layer 7c and translucent paint layer 7d are printed so as to overlap. That is, the metal deposition layer 7b on the back surface of the door front plate 7, the colored coating layer 7c provided on the back surface of the metal deposition layer 7b so as to avoid the rear projection position of the display unit 10, and the metal on the back surface of the display unit 10 A transparent paint layer 7d provided so as to cover the vapor deposition layer 7b, and the edge of the colored paint layer 7c around the display unit 10 is covered with the transparent paint layer 7d. In this way, by printing the paints so as to overlap each other, it is possible to completely cover and protect the periphery of the display portion 10 of the metal vapor deposition layer 7b. Thereby, physical stability and chemical stability can be maintained. The reason why the colored paint layer 7c is not provided at the rear projection position of the display unit 10 is to prevent the irradiation light from being blocked when the character display or the like of the display unit 10 is clearly displayed by irradiation from behind. .

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

  In FIG. 3, the display of the character part (characters of freezing, refrigeration, ice making, rapid cooling, and vacuum chilling) surrounded by a broken line is represented by direct printing or the like on the back surface of the glass plate 7a. On the other hand, the operation unit 9 refers to the front surface (front surface of the glass plate 7a which is the door front plate 6) at a position facing the back surface on which the character portion is printed. In addition, as a means for providing an operation display (the character portion) on the back surface of the glass plate 7a, there are etching, inlaying, and the like in addition to printing.

  Further, in FIG. 3, 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. And this character display ("strong (low temperature), medium, weak", "strong (chilled), medium, weak", "large, standard, stop", "quick refrigeration, quick freezing", "vacuum ice temperature, vacuum "Chilled, cut (ice temperature)") is expressed by printing or the like on the film surface described later.

  The said film is attached to the back surface of the glass plate 7a which is a door front plate so that contact | adherence or a clearance gap may become very slight. Therefore, the character display can be clearly confirmed from the front of the left refrigerator compartment door 2a through the glass plate 7a. This is because the rear surface of one glass plate 7a of the display unit 10 is composed of the metal vapor-deposited layer 7b and the light-transmitting paint layer 7d, and is not provided with the colored paint layer 7c. This is because the transmittance increases. It should be noted that the transmittance of the display unit 10 is adjusted to be 50% or more through experiments by the inventors. The present embodiment is a specification in which the outer surface is configured with a glass plate 7a of a half mirror specification in which visibility is ensured.

  Character display on the display unit 10 is illuminated by an LED 13a (light emitting diode) or the like, which is an illuminating means connected to a substrate, which will be described later, and is projected to the front surface of the glass plate 7a. It is configured so that the part of can be seen floating.

  Next, in FIG. 4, 11 is a cover member provided on the side surface of the left refrigerator compartment door 2a. The cover member 11 is provided on the side opposite to the hinge 2a1 of the left refrigerator compartment door 2a, has a function of covering the opening into which the substrate 15 is inserted, and is provided between the adjacent right refrigerator compartment door 2b. Yes. In this configuration, when the left refrigerator compartment door 2a and the right refrigerator compartment door 2b are closed, the cover member 11 is not visible from the user. Thus, the cover member 11 is removed, and the substrate holding means 17 is inserted and assembled. Note that the right side frame 50b may also function as the cover member 11. In this case, it is conceivable to provide a component having a shape covering the right side frame 50b as a single body or separately. Further, the opening and the cover member 11 do not necessarily have to be provided on the side opposite to the hinge 2a1, but an opening is formed in any of the upper, lower, left and right frames, and the substrate 15 is inserted from the opening to cover the opening. What is necessary is just the structure covered with a member. Moreover, if it is the structure which incorporates the board | substrate 15 in a door and then incorporates the glass plate 7a in a door, an opening and a cover member are unnecessary.

  Next, in FIG. 5, 2a is a left refrigerator compartment door, 7 is a door front plate, 8 is a foam heat insulating material, 20 is a door liner, 12 is a board | substrate assembly member. The board assembly member 12 includes an LED light emitting unit 13 that illuminates the display unit 10, a detection unit 14 that detects a change in capacitance, a determination unit (not shown), an automatic control unit (not shown) including a microcomputer, and the like. A substrate 15, a film 16 on which display characters and symbols are printed, a substrate holding means 17, and the like are housed in a substrate housing member 18.

Regarding the configuration of the door front plate 7, as described above, the metal vapor deposition layer 7b capable of reflecting light is provided on the back surface of the glass plate 7a, and the display unit 10 is arranged so as to avoid the rear projection position of the display unit 10. A colored paint layer 7c is provided on the rear surface of the metal vapor-deposited layer 7b so as to be bordered.
Reflectivity is maintained by this colored paint.

  Here, if the back surface of the door front plate 7 is covered with the foam heat insulating material 7, when the user cleans the door surface with water or detergent, the water or the detergent is the end of the door front plate 7. The phenomenon of going around from the gap between the frames to the back side can be prevented to some extent.

  However, a space isolated from the foam insulation 7 is formed by the substrate storage member 18, and after the foam insulation of the foam insulation 7, the substrate assembly member 12 is placed in the space between the substrate storage member 18 and the door front plate 7. Since it is set as the structure inserted, naturally the display part 10 is not the structure covered with the foam heat insulating material 7. FIG.

  Therefore, a light-transmitting paint layer 7d is provided so as to cover the metal vapor-deposited layer 7b on the back surface of the display unit 10, and the colored paint layer 7c and the light-transmitting paint layer 7d are printed so as to overlap each other. The metal coating layer 7b is protected on the entire surface by covering the back surface of the display portion 10 with the colored paint layer 7c and covering the rear projection position of the display unit 10 with the translucent paint layer 7d. With these configurations, the user can clean the door surface with water, detergent, or the like, so that the metal deposition layer is not eroded and has a reliable structure. Moreover, it can prevent that the metal vapor deposition layer 7b is eroded even if oil or a liquid food penetrate | invades into a clearance gap.

  The substrate 15 (including the detection unit 14) is covered with a film 16 on one surface of the substrate 15. Further, the other surface may be configured to be covered with the substrate holding means 17 or may be configured to expose the substrate 15. The film 16 is in close contact with the detection unit 14. Moreover, the film 16 is the structure which permeate | transmits the light of the LED light emission part 13 from the back surface to the surface, and permeate | transmits it to the glass plate 7a side.

  As described above, the translucent paint layer 7d is provided so as to cover the metal vapor-deposited layer 7b on the back surface of the display unit 10, and the colored paint layer 7c and the translucent paint layer 7d are printed so as to overlap with each other, and the metal vapor-deposited layer 7b. Is completely covered and protected by the colored paint layer 7c and / or the translucent paint layer 7d, so that even if the film 16 comes into contact with the back surface of the door front plate 7 during the refrigerator assembly, the metal deposition layer 7b is damaged. There is nothing.

  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. 5, the kind and ratio of the metal of the vapor deposition film are adjusted so that the resistance of the glass plate 7a which is an insulator and the metal vapor deposition layer 7b is 100 mega ohms or more. Thus, the operation unit 9 is provided on the front side and the detection unit 14 is provided on the back side.

  With these configurations, a determination unit (not shown) can detect 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.

  That is, the glass plate 7a constituting the door front plate 7 of the refrigerator is an insulator, and for the display unit 10, the back surface of the glass plate 7a is composed of the metal vapor-deposited layer 7b and the light projecting paint layer 7d. The rate is high. The operation content of the operation unit 9 is displayed on the back surface of the operation unit 9 of the glass plate 7a with characters and symbols expressed by printing or the like so that the front surface of the glass plate 7a is the operation unit 9.

  On the back surface of the glass plate 7 a facing the operation unit 9, a detection unit 14 provided on the substrate 15 and connected to the determination unit is provided so as to be close to each other through the film 16. Character display on the display unit 10 or the like provided along with the operation unit 9 is represented by printing or the like on the surface of the film 16 covering the surface of the substrate 15.

  The character / symbol display on the display unit 10 is clearly illuminated from the back surface by the LED light emitting unit 13 provided on the substrate 15. Further, when the user's hand or finger touches the operation unit 9, the detection unit 14 on the substrate 15 senses a change in capacitance with the glass plate 7 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 operation of a damper that controls a cold air supply amount. Such as “open” control. By controlling these loads, the refrigerator compartment 2 is rapidly refrigerated or the upper freezer compartment 3 is rapidly frozen.

  A detection unit 14 that detects a change in capacitance is provided on the substrate 15, and when the determination unit determines the change in capacitance, a buzzer provided on the substrate 15 issues an announcement sound or a voice announcement. Along with the change of the control content, the notification sound is given a scale, or the voice pattern is changed to be distinguished. Thereby, even when sunlight or room lighting hits the half mirror strongly and it is reflected and it becomes difficult to visually recognize the display, the user can be surely recognized by voice.

  Next, in FIG. 5, the substrate storage member 18 holds the substrate assembly member 12 in the substrate storage member 18 so that the film 16 on the surface of the substrate 15 is in close contact with or close to the glass plate 7 a that is the door front plate 7. To play a role.

  Reference numeral 19 denotes a protective film. The protective film 19 protects the glass plate 7a from being scattered even when a large impact is applied to the glass plate 7a and the glass is broken or cracked.

  Moreover, the short direction of the board | substrate assembly member 12 and the short direction of the glass plate 7a 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 7a, the distortion of the glass plate 7a tends to appear in the longitudinal direction. That is, in view of this property, the configuration is configured to suppress the influence of the distortion of the glass plate 7a when the base assembly member 12 is installed.

  Here, when it is incorporated so that the longitudinal direction of the substrate assembly 12 is along the longitudinal direction of the glass plate 7 a, it is affected by the distortion of the glass plate 7 a, and between the glass plate 7 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. In particular, in the case of a half mirror, this distortion increases the possibility of erroneously detecting a change in capacitance to other detection units in the vicinity of the operation target detection unit 14.

  Therefore, in the present embodiment, the longitudinal direction of the substrate assembly 12 is arranged in a direction intersecting the longitudinal direction of the glass plate 7a.

  Moreover, manufacturing cost can be reduced by making the door surface of a refrigerator into the glass plate 7a of 1 sheet. The gap between the glass plate 7a and the detection unit 14 needs to be 0.2 mm or less including the distortion of the glass plate 7a. It has been clarified by tests and the like of the present inventors that when the gap of 0.2 mm or more occurs, the problem that the input content from the operation unit 9 is not transmitted well to the detection unit 14 occurs.

  Moreover, the board | substrate assembly member 12 is provided in the door of the refrigerator compartment 2 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 7 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.

  As described above, in the present embodiment, the storage chamber door 2a that opens and closes the opening of the storage chamber 2, the door front plate 7 having translucency on the front surface of the storage chamber door 2a, and the substrate installed behind the door front plate 7 are provided. 15, an operation unit 9 on the front surface of the door front plate 7, and a detection unit connected to a substrate 15 provided behind or behind the operation unit 9 and in contact with or close to the rear surface of the door front plate 7 to detect a change in capacitance. 14, a display unit 10 that displays the operation result of the operation unit 9, an illumination unit 13a that irradiates the display unit 10 from behind, a control unit that controls the illumination unit 13a based on the detection result of the detection unit 14, and a door front A metal vapor deposition layer 7b on the back surface of the face plate 7, a colored paint layer 7c provided on the back surface of the metal vapor deposition layer 7b so as to avoid the rear projection position of the display unit 10, and a metal vapor deposition layer 7b on the back surface of the display unit 10 A transparent paint layer 7d provided so as to cover the colored paint layer 7c. Radical 113 10 covers the end portion of the periphery of a transparent coating layer 7d.

  Thereby, the corrosion of the metal vapor deposition layer 7b can be prevented, and the half mirror door excellent in the design property with high reliability also to a refrigerator door is realizable.

(Embodiment 2)
Next, Embodiment 2 will be described with reference to FIGS. FIG. 6 is a front view of the refrigerator according to the second embodiment of the present invention. 7 is a cross-sectional view taken along the line BB in FIG. 6 for explaining the configuration of the door front plate according to the second embodiment of the present invention. FIG. 8 is a BB cross-sectional view of the door shown in FIG. In addition, about the structure similar to Embodiment 1, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  In the second embodiment, the coating of the door front plate 7 in the operation unit 9 and the display unit 10 is different from that in the first embodiment. 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. In the first embodiment, the metal deposition layer 7b is applied to the doors 2, 3, 4 and 5 of the respective refrigerators. However, in the second embodiment, only the operation unit 9 and the display unit 10 are applied. ing. This is because the vapor deposition process of the metal layer has high accuracy with respect to a normal paint printing process, and the manufacturing cost becomes high. Therefore, in order to provide a structure that is inexpensive but highly reliable, a half mirror in which a metal vapor deposition layer is provided on a partially light-projecting plate and a capacitance type operation unit are provided.

  Here, in FIG. 7, the structure of the glass plate 7a is demonstrated. A colored paint 7c is provided on the back side of the glass plate 7a other than the operation unit 9 and the display unit 10, and a metal vapor deposition layer 7b capable of reflecting light is provided on the back side of the operation unit 9 and the display unit 10 of the glass plate 7a. The translucent paint layer 7d is provided so as to cover the vapor deposition layer surface on the back surface of the operation unit 9 and the display unit 10, and the end of the metal vapor deposition layer 7b is placed in the range where the colored paint layer 7c and the translucent paint layer 7d overlap. Provided.

  By providing the metal vapor-deposited layer 6b that can reflect light, the specification is provided with a display portion having reflectivity, and the door has excellent appearance.

As described above in Embodiment 1, in order to maintain the physical stability and chemical stability of the metal vapor-deposited layer 7b, the translucent paint layer is provided so as to cover the vapor-deposited layer 7b on the back surface of the operation unit 9 and the display unit 10. 7d is provided, and the colored paint layer 7c and the translucent paint layer 7d are printed so as to overlap each other. By printing the paints so as to overlap each other, the metal vapor deposition layer 7b can be completely covered and protected.
Thereby, physical stability and chemical stability can be maintained.

  In the second embodiment, the operation unit and the display unit are arranged on the metal vapor deposition layer. However, only the display unit may be arranged on the metal vapor deposition layer. That is, including the colored paint layer 7c provided on the back surface of the door front plate 7 so as to avoid the rear projection position of the display unit 10, and the back surface of the display unit 10 including the peripheral edge portion of the display unit 10 of the colored paint layer. The metal vapor-deposited layer 7b and the translucent paint layer 7d provided so as to cover the metal vapor-deposited layer 7b are provided, and the end portions of the colored paint layer 7c and the metal vapor-deposited layer 7b around the display unit 10 are translucent. Cover with paint layer 7d.

  With these configurations, the metal vapor-deposited layer is protected by the colored paint layer 7c and the translucent paint layer 7d, so that it can be prevented from being damaged when the door is assembled, and water, detergent, food oil, liquid food, etc. Deterioration due to erosion can be prevented.

  In addition, applying a half mirror with a metal deposited film on a light-emitting plate material to the refrigerator door surface reflects the user or usage environment on the entire door surface, further improving the appearance design. A refrigerator can be provided.

  In addition, although the present Example demonstrated the example which provides an operation part and a display part in the left refrigerator compartment door 2a, it is not limited to this. For example, an operation unit and a display unit may be provided in any of the right refrigerator door 2b, the ice making door 4a, the upper freezer door 3a, the lower freezer door 5a, and the vegetable door 6a. Moreover, you may provide an operation part and a display part in a some door. In addition to the configuration in which the operation unit and the display unit are provided on the same door, the door provided with the operation unit and the door provided with the display unit may be separated. In any case, the same effect can be obtained if the relationship between the metal vapor-deposited layer, the translucent paint layer and the colored paint layer is configured as in the present embodiment.

(Embodiment 3)
Next, Embodiment 3 of the present invention will be described with reference to FIGS. Note that the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. Moreover, although it demonstrates using the left refrigerator compartment door 2a below, even if it is a case where it applies to another door, it becomes the same structure.

  The door of the refrigerator in this Embodiment is provided with the glass plate 7a which is the door front plate 7 which has translucency in an outer surface. The end of the glass plate 7 a is connected to the frame 50. As in the first embodiment, the left side portion, the right side portion, the lower portion, and the upper portion are connected to the left side frame 50a, the right side frame 50b, the upper frame 50c, and the lower frame 50d, respectively. In addition, since the liquid flows downward due to gravity, the liquid easily flows around the back surface of the glass plate 7a particularly from the gap at the lower part of the door. Therefore, it is necessary to consider at least the relationship between the glass plate 7a and the lower frame 50d. Moreover, since the display part 10 is a part which a user sees frequently, when the structure which does not provide the colored paint layer 7c in the display part 10, it shall be set as the structure which a liquid does not wrap around to the back surface of the display part 10. preferable.

  From the above, it is preferable that each frame has the same configuration. However, in the following, the configuration of the lower frame 50d will be described as a representative.

  The lower frame 50d includes a front flange 50d1, a rear flange 50d2, and a connecting portion 50d3 that connects the front flange 50d1 and the rear flange 50d2. As shown in FIGS. 9 and 10, the lower end of the glass plate 7a is sandwiched and supported by a recess formed by the rear flange 50d2, the front flange 50d1, and the connecting portion 50d3.

  A metal vapor deposition layer 7b is provided on the back surface of the glass plate 7a, and a colored paint layer 7c is provided on the back surface of the metal vapor deposition layer 7b. The colored paint layer 7c not only expresses the color to the outside through the glass plate 7a as a suppression of the half mirror, but also functions as a protective film for the metal deposition layer 7b. A protective film 19 as a protective member is attached to the back surface of the colored paint layer 7c.

  Moreover, the vacuum heat insulating material 32 is affixed on the back surface of the protective film 19 with hot melt, an adhesive agent, or the like. In the case of a door made of a steel plate, when the vacuum heat insulating material 32 is attached to the back surface of the steel plate, the uneven shape of the vacuum heat insulating material 32 tends to appear on the appearance of the steel plate due to the pressure during filling and foaming of the foam heat insulating material. In the case of a door made of a steel plate, the metal layer that is included in the outer packaging material of the vacuum heat insulating material 32 and adds a gas barrier property easily conducts heat from the steel plate, which causes a decrease in heat insulation performance.

On the other hand, in the case of the glass plate 7a, the appearance is not deformed even by the foaming pressure of the foam heat insulating material, and the vacuum heat insulating material 32 can be directly attached to the back surface of the glass plate 7a. Further, since glass has a lower thermal conductivity than a steel plate, the thermal conductivity through the metal layer of the vacuum heat insulating material 32 can be kept low (thermal conductivity in the vicinity of room temperature of general various materials [unit: W · m ⁻¹ · K ⁻¹ ] is iron: 84, stainless steel: 16.7 to 20.9, glass: 1).

  The metal vapor deposition layer 7b is provided for the purpose of adding a mirror surface function to the glass plate 7a by utilizing the gloss of the metal.

  Here, the metal generally loses its metallic luster and changes color due to oxidation by oxygen in the air or corrosion due to chemical reaction with other chemical substances. Further, the film thickness of the metal vapor-deposited layer 7b is on the order of nanometers in order to give a characteristic as a half mirror, and the adhesion with the glass plate 7a is not high, and peeling easily occurs due to a chemical change. For this reason, when the metal vapor-deposited layer 7b is oxidized or corroded, the hue changes only in that portion, and the function as the half mirror and the desired appearance are lost.

  However, as a specification of the refrigerator, when the user operates with wet hands and fingers, the case where the door surface is cleaned with water or detergent must be assumed. Furthermore, since the half mirror is more conspicuous in dirt, fingerprints, and the like on the door surface than on a general door surface, the user performs cleaning more frequently.

  When the user cleans with a chemical substance such as water or detergent, the water or detergent enters from between the glass plate 7a and the front flange 50d1, and the back surface of the glass plate 7a via the connecting portion 50d3 of the lower frame 50d. There is a risk of contact. When the colored paint layer 7c is applied only to the inner side of the end face of the metal vapor deposition layer 7b on the back surface of the glass plate 7a, the metal vapor deposition layer 7b is exposed, so that water, detergent or the like comes into contact therewith. Oxidation and corrosion occur. Then, when oxidation or corrosion progresses to the upper part of the front flange 50d1, the discoloration of the half mirror can be recognized as an appearance.

  Therefore, in order to manufacture a refrigerator having a highly reliable half-mirror door, it is necessary to protect the end of the metal vapor-deposited layer 7b from water or detergent.

  In this embodiment, as shown in FIG. 10, the end of the colored paint layer 7c is provided outside the end of the metal vapor deposition layer 7b, thereby preventing the metal vapor deposition layer 7b from being exposed. The colored paint layer 7c functions as a protective film that prevents water, detergent, or the like from coming into direct contact with the metal vapor-deposited layer 7b, and therefore desirably has waterproofness and chemical resistance.

  The end portion of the metal vapor deposition layer 7b is lower on the connecting portion 50d3 side of the lower frame 50d than the upper end of the front flange 50d1 (in this embodiment, for example, the height dimension of the front flange 50d1 is 8 mm) and obliquely forward of the door When viewed from above, the end of the metal vapor-deposited layer 7b is not visible, and is applied in a range of height positions that do not contact the connecting portion 50d3 of the lower frame 50d. When the thickness dimension of the glass plate 7a is 3.0 mm and the height dimension of the front flange 50d1 is 8 mm, the end of the metal vapor deposition layer 7b is not visible when viewed from obliquely above near the door front surface. It is within about 2 mm from the lower end 7a1 of the plate 7a.

  Accordingly, the end portion of the metal vapor deposition layer 7b is set at a position of about 2 mm from the lower end portion 7a1 of the glass plate 7a, and the end portion of the colored paint layer 7c is within the range from the outer side to the lower end portion 7a1 from the end portion of the metal vapor deposition layer 7b. By setting, the end portion of the metal vapor deposition layer 7b is not visible even when viewed from obliquely above near the front surface of the door, and a uniform half mirror appearance can be formed as a whole up to the end portion of the door.

  In the present embodiment, a storage room 2 provided in the refrigerator body 1, a storage room door 2a for opening and closing an opening of the storage room 2, a door front plate 7 having translucency on the front surface of the storage room door 2a, and a door A frame (at least one of a left side frame 50a, a right side frame 50b, an upper frame 50c, and a lower frame 50d) connected to an end of the front plate 7, a metal vapor deposition layer 7b provided on the back surface of the door front plate 7, A colored paint layer 7c, which is a back surface of the metal vapor deposition layer 7b at a position facing the frame and is partially coated to the outside of the end of the metal vapor deposition layer 7b. Thereby, it becomes possible to prevent water, a detergent, food oil, a liquid substance, etc. from contacting the metal vapor deposition layer 7b.

  In addition, in the case where the rear surface of the display unit 10 of the glass plate 7a is provided with the metal vapor deposition layer 7b and not the colored paint layer 7c, the liquid wraps around the rear surface of the glass plate 7a from the end of the display unit 10 to form the metal vapor deposition layer 7b. May oxidize or corrode. Therefore, the colored paint layer 7c is provided so as to cover the metal vapor deposition layer 7b at the end position of the display unit 10. For example, as shown in FIG. 1, the colored paint layer 7 c is disposed at least at the height position of the display unit 10 among the metal vapor deposition layers 7 b at positions facing the left side frame 50 b and the right side frame 50 b. Thereby, it becomes possible to prevent water, a detergent, food oil, a liquid substance, etc. from contacting the metal vapor deposition layer 7b of the display part 10. FIG.

(Embodiment 4)
Next, Embodiment 4 of the present invention will be described with reference to FIG. Note that the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the present embodiment, a belt-like member 42, which is a protective member, is attached at the end of the glass plate 7a so as to cover the end. The belt-like member 42 as a protective member is attached from the surface of the colored paint layer 7c to the front surface of the glass plate 7a via the lower end portion 7a1 of the glass plate 7a. The front surface of the glass plate 7a is affixed in a range that is higher than the height of the front flange 50d1, and the belt-like member 42 cannot be seen when viewed from the front of the door.

  The belt-like member 42 is made of a resin thin film, and in the form of this embodiment, for example, a tape made of synthetic resin such as polyester, polyethylene, polypropylene, polyvinyl chloride, or fluororesin is used. The thickness of the resin thin film of the belt-like member 42 is approximately between 0.03 mm and 0.3 mm, and varies depending on the type of resin. The band-shaped member 42 made of these resin thin films has waterproofness, and can prevent water that has entered from between the glass plate 7a and the front flange 50d1 from coming into direct contact with the metal deposition layer 7b.

  Moreover, the strip | belt-shaped member 42 also has a function of reinforcement of the lower end part 7a1 of the glass plate 7a. In particular, when tempered glass is employed as the glass plate 7a, the tempered glass has a property that cracks are likely to occur from the ends. Therefore, by covering the end portion of the glass plate 7a with the strip-shaped member 42, the occurrence of cracks can be suppressed.

  In the present embodiment, as in the third embodiment, the end of the metal vapor deposition layer 7b is set at a position of about 2 mm from the lower end 7a1 of the glass plate 7a, and the end of the metal vapor deposition layer 7b cannot be seen from the front of the door. However, the end portion of the colored paint layer 7c does not necessarily have to be provided to the outside of the end portion of the metal deposition layer 7b. Since the band-shaped member 42 covers the end surfaces of the colored paint layer 7c and the metal vapor-deposited layer 7b, the end of the metal vapor-deposited layer 7b is covered with the band-shaped member 42 and is not exposed. It can prevent a thing from contacting.

  The surface of the belt-like member 42 that contacts the colored paint layer 7c is colored in the same or similar color as the colored paint layer 7c, so that even if the belt-like member 42 is visible from the lower frame 50d, the appearance design It can prevent that property is impaired.

  In the present embodiment, a storage room 2 provided in the refrigerator body 1, a storage room door 2a for opening and closing an opening of the storage room 2, a door front plate 7 having translucency on the front surface of the storage room door 2a, and a door A frame (at least one of a left side frame 50a, a right side frame 50b, an upper frame 50c, and a lower frame 50d) connected to an end of the front plate 7, a metal vapor deposition layer 7b provided on the back surface of the door front plate 7, A colored paint layer 7c provided on the back surface of the metal vapor-deposited layer 7b, and a protective member 42 covering the end of the door front plate 7 facing the frame from the back surface of the colored paint layer 7c. Thereby, it can prevent that the water which penetrate | invaded from between the door front board 7 and the flame | frame directly contacts the metal vapor deposition layer 7b.

  In addition, in the case where the rear surface of the display unit 10 of the glass plate 7a is provided with the metal vapor deposition layer 7b and not the colored paint layer 7c, the liquid wraps around the rear surface of the glass plate 7a from the end of the display unit 10 to form the metal vapor deposition layer 7b. May oxidize or corrode. Therefore, the protection member 42 is provided so as to cover the metal vapor deposition layer 7b at the end position of the display unit 10. For example, as illustrated in FIG. 1, the protective member 42 is disposed at least at the height position of the display unit 10 in the metal vapor deposition layer 7 b at a position facing the left side frame 50 b and the right side frame 50 b. Thereby, it becomes possible to prevent water, a detergent, food oil, a liquid substance, etc. from contacting the metal vapor deposition layer 7b of the display part 10. FIG.

(Embodiment 5)
Next, a fifth embodiment of the present invention will be described with reference to FIG. Note that the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the present embodiment, the metal vapor deposition layer 7b and the colored paint layer 7c are configured in the same manner as in the fourth embodiment. The difference from the fourth embodiment is that a seal member 43 is provided at the lower end 7a1 of the glass plate 7a. By sealing the space 33 between the lower frame 50d and the connecting portion 50d3 with the seal member 43, water that has entered from between the glass plate 7a and the front flange 50d1 is located behind the door from the seal member 43 (on the rear flange 50d2 side). ) Can be prevented from flowing into the space. From this, it can prevent that liquid materials, such as water, a detergent, and oil, contact the metal vapor deposition layer 7b directly.

  The seal member 43 is made of an elastic resin. In the present embodiment, the seal member 43 is made of a rubber such as silicone rubber or EPDM, or a foamed resin such as polyurethane foam, polyethylene foam, or polystyrene foam. The thickness in the vertical direction of the seal member 43 before assembling the glass plate 7a and the lower frame 50d is a dimension t1 between the lower end portion 7a1 of the glass plate 7a after assembly and the connecting portion 50d3 of the lower frame 50d (this embodiment). In this case, the seal member 43 is compressed, and the inflow of water can be prevented more reliably.

  In the present embodiment, a storage room 2 provided in the refrigerator body 1, a storage room door 2a for opening and closing an opening of the storage room 2, a door front plate 7 having translucency on the front surface of the storage room door 2a, and a door A frame (at least one of a left side frame 50a, a right side frame 50b, an upper frame 50c, and a lower frame 50d) connected to an end of the front plate 7, a metal vapor deposition layer 7b provided on the back surface of the door front plate 7, A colored paint layer 7c provided on the back surface of the metal vapor-deposited layer 7b, and an elastic resin seal member 43 provided between the frame and the end portion of the door front plate 7 are provided. Thereby, it is possible to prevent water that has entered from between the door front plate 7 and the frame from flowing into the space on the rear side of the door from the seal member 43.

1 Refrigerator body 2 Refrigerated room (storage room)
2a Left refrigerator compartment door (storage compartment door)
2b Right refrigerator compartment door 7 Door front plate 7a Glass plate 7b Metal deposition layer 7c Colored paint layer 7d Translucent paint layer 8 Foam insulation 20 Door inner plate 9 Operation part 10 Display part 11 Cover member 12 Substrate assembly member 13 LED light emission Part 13a LED (lighting means)
14 Detection unit 15 Substrate 16 Film 17 Substrate holding means 18 Substrate storage member 19 Protective film 42 Strip member (protective member)
43 Seal member 50a Left side frame (frame)
50b Right side frame (frame)
50c Upper frame (frame)
50d Lower frame (frame)
50d1 Front flange (front protrusion)
50d2 Rear flange (rear protrusion)
50d3 connecting part

Claims (2)

A storage room provided in the refrigerator body;
A storage room door for opening and closing the opening of the storage room;
A door front plate having translucency in front of the storage room door;
A frame connected to an end of the door front plate;
A metal deposition layer provided on the back surface of the door front plate;
A colored paint layer that is a back surface of the metal vapor deposition layer at a position facing the frame and is partially coated up to a range outside the edge of the metal vapor deposition layer ;
The lower frame of the frame has a front flange, a rear flange, and a connecting portion that connects the front flange and the rear flange,
The end of the metal vapor deposition layer is lower on the connecting part side than the upper end of the front flange,
The refrigerator is characterized in that an end portion of the colored paint layer is in a range from an outer side than an end portion of the metal vapor deposition layer to a lower end portion of the door front plate . An operation unit on the front surface of the door front plate;
A detection unit that detects a change in capacitance provided behind or behind the operation unit and in contact with the rear surface of the door front plate;
A display unit for displaying an operation result of the operation unit;
Illuminating means for irradiating the display unit from behind;
A control unit for controlling the illumination means based on the detection result of the detection unit,
2. The refrigerator according to claim 1, wherein the colored paint layer is provided at least at a height position of the display portion of the metal vapor deposition layer at a position facing the frame.