WO2014038190A1 - Refrigerator - Google Patents

Abstract

A refrigerator is provided with heat-insulating doors (10, 11, 12) which can open and close the storage chambers, respectively, of the refrigerator body. The front surface of each of the heat-insulating doors (10, 11, 12) is constructed from a transparent front plate (25) equipped with a colored layer and having an exposed outer periphery. The grip (10a) of the heat-insulating door (10) is formed in a recessed manner in either the upper end surface or the lower end surface of the edge frame of the heat-insulating door (10). Although the refrigerator is provided with the multiple heat-insulating doors (10, 11, 12), the transparent front plate (25) is directly exposed at the outer periphery of each of the heat-insulating doors (10, 11, 12), there is no protrusion at the outer periphery, and the grip (10a) does not protrude from the front face of the transparent front plate (25).

Description

refrigerator

The present invention relates to a refrigerator, and more particularly to a refrigerator door configuration.

Generally, this type of refrigerator is provided with a refrigerator compartment, a freezer compartment, a freezer compartment, etc. in a refrigerator body having heat insulation properties, and these refrigerator compartments, freezer compartments, freezer compartments and the like can be opened and closed by doors.

This door is between a front plate that is the front surface of the refrigerator body, an inner frame that is an inner surface of a refrigerator compartment, a freezer compartment, a freezer compartment, and the like, and a frame that integrally connects the front plate and the inner frame. Urethane is filled and foamed so as to have a heat insulating property similar to the refrigerator main body.

In such a refrigerator, the front plate of the door greatly affects the appearance of the refrigerator, that is, the design, and the finish greatly affects the quality of the entire refrigerator.

Therefore, there is a structure in which the front plate of the door is made of a glass plate in order to improve the design of the door (for example, see Patent Document 1).

FIG. 21 shows a conventional refrigerator. The front plate 101 is composed of a colored glass plate 103 in which a colored layer 102 such as a pattern is formed by silk printing, and this colored glass plate 103, an inner frame 104, a frame 105, Between these, urethane 106 is filled and foamed.

According to this configuration, since the transparent layer of the colored glass plate 103 is positioned in front of the colored layer 102, the depth is added to the colored color and the texture is increased. Compared with the pre-painted plate made of metal or resin, its design There is an advantage of improving the performance.

However, this conventional door is provided with the colored glass plate insertion portion 107 in the frame body 105, and the outer peripheral portion of the colored glass plate 103 is fitted into the colored glass plate insertion portion 107. For this reason, the colored glass plate insertion portion 107 is exposed around the front surface of the colored glass plate 103, and there is a problem that the design property improved by using the colored glass plate 103 is impaired. Further, like the colored glass plate insertion portion 107, a part of the handle frame of a handle (not shown) provided on each door is exposed on the front surface of the glass plate, which is also a factor that impairs the design.

In particular, when there are a plurality of doors, the colored glass plate insertion portion 107 and the handle frame (not shown) on the outer peripheral portion of each door have many exposed portions, so that the entire door surface is the colored glass plate insertion portion 107 and the handle frame. Due to the protrusion, the designability was greatly impaired.

This invention is made in view of such a point, and provides the refrigerator which made the design property of the door front surface high even if it was a refrigerator provided with the some door.

In general, refrigerators have a high proportion of electric power used at home, and there is a strong demand to suppress the electric power used as much as possible. Therefore, the thing which enables a power-saving driving | operation using an optical sensor is proposed. For example, when the optical sensor detects a predetermined illuminance or higher, normal operation is performed. And when it detects less than a predetermined illuminance, the customer goes to bed and opens and closes the refrigerator door and puts food in and out. . At that time, the optical sensor is provided on the front surface of the door to detect the illuminance in the room (for example, see Patent Document 2 and Patent Document 3). In addition, there is an optical sensor provided on the upper surface of the refrigerator body to detect the illuminance in the room (for example, see Patent Document 4).

FIG. 22 shows a conventional refrigerator, and this refrigerator is provided with an operation part 112 at the lower part of the front surface of the door 111, and the operation part 112 is provided with a light receiving part 113 of an optical sensor. FIG. 23 shows another conventional refrigerator, in which an operation unit 122 is provided in the vertical direction at the side end of one door of the double door folding type door 121, and a light receiving unit 123 of an optical sensor is provided in the operation unit 122. It is provided. Further, FIG. 24 shows another conventional refrigerator, and the optical sensor 134 is provided not on the door 131 but on the upper surface of the refrigerator main body 135.

In the conventional refrigerator shown in FIGS. 22 and 23, the light receiving units 113 and 123 for detecting the illuminance in the room are provided in the operation units 112 and 122, respectively. Therefore, it is possible to prevent the light receiving units 113 and 123 from being obscured by a memo or flyer that is routinely performed by the user, and an effect that power saving operation can be expected by reliably detecting room illuminance. That is, in order to operate the operation units 112 and 122, a memo, a flyer, etc. are stretched avoiding the operation units 112 and 122. Therefore, if the operation units 112 and 122 are provided with the light receiving units 113 and 123, the light receiving units 113 and 123 are not covered with a memo or a leaflet, and the room illuminance can be reliably detected.

However, when the light receiving portions 113 and 123 are provided on the front surface of the door, there is a problem that the light receiving portions 113 and 123 are conspicuously lowered in appearance of the door, in other words, the design of the refrigerator.

Also, after the user purchases the refrigerator, after operating the operation units 112 and 122 to set the refrigeration conditions, the user hardly operates the operation units 112 and 122. For this reason, memos, flyers and the like are often pasted in such a manner as to cover the operation units 112 and 122. As a result, there is a problem that the effect obtained by providing the light receiving units 113 and 123 in the operation units 112 and 122 cannot be obtained as expected, and the room illuminance cannot be detected accurately.

Such a problem can be solved by providing an optical sensor 134 on the upper surface of the refrigerator main body 135 as in the conventional refrigerator shown in FIG. However, the user sometimes places an object on the upper surface of the refrigerator main body 135, and the optical sensor 134 is covered by the object, and in this case as well, there remains a problem that the room illuminance cannot be detected.

The present invention has been made in view of such problems, and provides a refrigerator capable of reliably detecting room illuminance without impairing the appearance design.

Japanese Patent No. 3140110 JP 2001-91142 A JP 2012-145303 A JP-A-4-240370

The present invention includes a refrigerator main body having heat insulation performance, a plurality of storage rooms provided in the refrigerator main body, and a plurality of heat insulating doors each capable of opening and closing the opening of the storage room. In addition, each heat insulating door is formed with a transparent front plate with a colored layer whose outer peripheral portion is exposed, and a handle portion of each heat insulating door is provided on either the upper end surface or the lower end surface of the edge frame of the heat insulating door. It is formed to be recessed.

As a result, it is possible to achieve a high texture due to the use of the transparent front plate, and even if there are multiple insulated doors, the transparent front plate is exposed as it is on the outer periphery of each insulated door, and there is no protrusion There is no part. In addition, the handle part does not protrude from the front of the transparent front plate, and the entire door can be flat when viewed as a whole door, providing a high design with a sense of texture and refreshment. Can be realized.

Further, the present invention includes a refrigerator body, a storage room provided in the refrigerator body, and a door that opens and closes an opening of the storage room, and the door is provided with an illuminance sensor on an end surface of any one of its outer sides.

Thereby, the illuminance sensor is not seen from the front of the door, and can be kept well without deteriorating the front of the door, that is, the appearance design of the refrigerator. Furthermore, even if a memo or flyer is attached to the front face of the door and the front of the door outer peripheral portion is covered, external light reaches the door outer peripheral portion from the lateral direction, so that this can be detected reliably.

FIG. 1 is an external perspective view of the refrigerator according to the first embodiment of the present invention. FIG. 2 is a front view of the refrigerator in the first embodiment of the present invention. FIG. 3 is a schematic cross-sectional view of the refrigerator in the first embodiment of the present invention. 4 is a cross-sectional view taken along line 4-4 of FIG. FIG. 5 is an enlarged cross-sectional view showing the handle portion of the kannon door and the drawer door of the refrigerator in the first embodiment of the present invention. FIG. 6 is a perspective view showing one of the doors of the refrigerator according to the first embodiment of the present invention. FIG. 7 is an exploded perspective view showing one of the refrigerator doors according to the first embodiment of the present invention. 8 is a cross-sectional view taken along the line 8-8 in FIG. 6 including an enlarged view of the main part. 9 is a cross-sectional view taken along line 9-9 of FIG. FIG. 10 is an explanatory diagram for explaining a state where the tape is attached to the edge frame of the refrigerator according to the first embodiment of the present invention. FIG. 11 is an external perspective view of the refrigerator in the second embodiment of the present invention. FIG. 12 is a front view of the refrigerator in the second embodiment of the present invention. FIG. 13 is a schematic cross-sectional view of a refrigerator in the second embodiment of the present invention. 14 is a cross-sectional view taken along line 14-14 of FIG. FIG. 15 is an enlarged cross-sectional view showing the handle portion of the kannon door and the drawer door of the refrigerator according to the second embodiment of the present invention. FIG. 16: is a perspective view which shows one of the kannon doors of the refrigerator in the 2nd Embodiment of this invention. 17 is a cross-sectional view taken along line 17-17 in FIG. FIG. 18 shows an illuminance sensor installation configuration of the refrigerator in the second embodiment of the present invention, and is a cross-sectional view taken along line 18-18 in FIG. FIG. 19 is a control block diagram of the refrigerator in the second embodiment of the present invention. FIG. 20 is an enlarged cross-sectional view showing a kannon door and a drawer door showing the illuminance sensor installation configuration of the refrigerator in the third embodiment of the present invention. FIG. 21 is a sectional view of a door in a conventional refrigerator. FIG. 22 is a perspective view of a conventional refrigerator. FIG. 23 is a front view of another conventional refrigerator. FIG. 24 is a front view of still another conventional refrigerator.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In this embodiment, the structure for ensuring the adhesion and holding of the transparent front plate, which is concerned by the elimination of the transparent front plate insertion portion for holding the outer peripheral portion of the transparent front plate such as a glass plate, particularly provided to the transparent front plate Although an example corresponding to peeling of the transparent front plate caused by the colored layer to be described will be described as an example, the present invention is not limited thereto.

(First embodiment)
1 is an external perspective view of a refrigerator according to the first embodiment of the present invention, FIG. 2 is a front view of the refrigerator according to the first embodiment of the present invention, and FIG. 3 is according to the first embodiment of the present invention. It is a schematic cross section of a refrigerator. 4 is a cross-sectional view taken along the line 4-4 of FIG. 2, and FIG. 5 is an enlarged cross-sectional view showing the handle portion of the door of the refrigerator and the pull-out door according to the first embodiment of the present invention. FIG. 6 is a perspective view showing one of the refrigerator doors according to the first embodiment of the present invention, and FIG. 7 is an exploded perspective view of the refrigerator door according to the first embodiment of the present invention. 8 is a sectional view taken along the line 8-8 in FIG. 6 including an enlarged view of the main part, FIG. 9 is a sectional view taken along the line 9-9 in FIG. 6, and FIG. It is explanatory drawing explaining a tape sticking state.

1 to 3, a refrigerator main body 1 includes a metal (for example, iron plate) outer box 2 that opens forward, an inner box 3 made of hard resin (for example, ABS), an outer box 2 and an inner box 3. It consists of the hard foaming urethane 4 foam-filled between.

The refrigerator body 1 has a plurality of storage chambers formed therein. The storage room is provided in a refrigerator room 5 disposed above the refrigerator body 1, a switching room 6 located below the refrigerator room 5, an ice making room 7 provided in parallel with the switching room 6, and a lower part of the switching room 6 and the ice making room 7. It consists of a freezer compartment 8 located and a vegetable compartment 9 located below the freezer compartment 8.

Moreover, the front of the refrigerator compartment 5 is closed freely by a heat insulating door 10 composed of a double door type door. In addition, the switching chamber 6, the ice making chamber 7, the freezing chamber 8, and the vegetable chamber 9 have front portions that are freely openable and closable by heat insulating doors 11, 12, 13, and 14 that are pull-out drawer doors.

There is a cooling chamber 16 on the back of the refrigerator main body 1, and a cooler 17 that generates cold air and a blower fan 18 that supplies the cold air to each chamber are provided. Further, a compressor 19 is provided at the back of the top surface of the main body of the refrigerator main body 1, and a condenser (not shown), a heat radiating pipe 20, a capillary tube 21, and a cooler 17 are sequentially annularly formed. Connected to form a refrigeration cycle. The refrigerant is sealed in the refrigeration cycle and the cooling operation is performed.

Here, each of the heat insulating doors 10 to 14 is foamed and filled with hard urethane like the refrigerator main body 1 so as to have a heat insulating property, and the front surface thereof is made of a transparent front plate 25 made of, for example, a glass plate in order to further improve the design. It consists of

Hereinafter, the structure of the heat insulating door 10 composed of a kannon door will be described as an example with reference to FIGS. 4 to 10. FIG. The heat insulating doors 11, 12, 13, and 14 including drawer doors other than the heat insulating door 10 have the same configuration.

As shown in the figure, the inner frame 23 to be positioned inside the refrigerator main body 1 is made of, for example, ABS resin. The edge frame 24 bonded and fixed to the peripheral end surface of the inner frame 23 is also formed of ABS resin. Further, a transparent front plate 25 is laminated on the edge frame 24 covering the inner frame 23. In the present embodiment, the transparent front plate 25 is formed of a glossy tempered glass plate.

The transparent front plate 25 made of this glass plate has a resin film 27 attached to its inner surface via an adhesive 26 as shown in FIGS. 8 and 9 to cope with peeling caused by the colored layer. 27 is formed with a colored layer 28 made of a metallic pattern such as a picture pattern, for example, a hairline. As a result, the transparent front plate 25 becomes a glass plate with a colored layer.

In the present embodiment, the resin film 27 is made of polyethylene terephthalate having high transparency and high mechanical strength, and the colored layer 28 is formed on the side opposite to the transparent front plate 25 in the white type, and the transparent front plate 25 side in the gray type. Is formed. In the drawing, the case where it is formed on the side opposite to the transparent front plate 25 is shown.

When emphasizing the hairline in three dimensions, a concave and convex groove is provided on the surface of the resin film opposite to the colored layer 28 formed on the transparent front plate 25 side to form a three-dimensional hairline. A chromium vapor deposition layer is formed on the surface. As a result, the design properties can be improved, and by using chromium as the material of the vapor deposition layer, the rust generation of the vapor deposition layer starting from the end surfaces of the resin film 27 and the vapor deposition layer can be prevented, and the durability of the pattern can be improved. There is.

Hard urethane 29 filled and foamed is disposed in the space between the resin film 27 side surface of the transparent front plate 25 and the inner frame 23 and the edge frame 24. The urethane 29 is adhered to the resin film 27 on the inner surface of the transparent front plate 25 together with the inner frame 23 and the edge frame 24 by foaming, and the transparent front plate 25 is bonded and held via the resin film 27.

Here, the edge frame 24 of the inner frame 23 does not have the colored glass plate insertion portion as described in the conventional example, and the transparent front plate 25 made of a glass plate has a configuration in which the outer peripheral portion is exposed as it is. . Further, the transparent front plate 25 is configured such that the outer peripheral edge thereof is positioned slightly inside the end face 24c of the edge frame 24 as shown in FIG.

Further, as shown in FIG. 4, the handle portion 10 a of the heat insulating door 10 formed of a kannon door is formed by forming an upward concave portion on the lower end surface of the edge frame 24. Further, the grip portions 11 a and 12 a of the heat insulating doors 11 and 12, which are drawer-type doors directly below the heat insulating door 10, are configured by forming an upward concave portion on the lower end surface of the edge frame 24 of the heat insulating doors 11 and 12. Further, the grip portions 13a and 14a of the freezer compartment 8 and the vegetable compartment 9 below are formed by forming a downward concave portion on the upper end surface of the edge frame 24 of the heat insulating doors 13 and 14 formed of the respective pull-out doors. . And the edge frame 24 which formed each handle part 10a, 11a, 12a, 13a, 14a does not have the transparent front board 25 insertion part which consists of a colored glass plate as already stated, It does not protrude from the front surface.

Further, in the present embodiment, the upper end portions of the heat insulating doors 11 and 12 made of drawer-type doors located directly below the heat insulating door 10 made of a kannon door are inclined surfaces 11b and 12b that descend from the rear to the front. It is set as the structure which can perform the manual insertion to the handle part 10a of the heat insulation door 10 easily.

Further, as apparent from FIG. 5, the lower end A of the inclined surfaces 11b and 12b is positioned higher than the upper end B of the glass plate 25 of the heat insulating doors 11 and 12 provided with the inclined surfaces 11b and 12b. The upper end C of the inclined surfaces 11b and 12b is configured to be located on the back side of ½ of the depth of the heat insulating door 10 located above the inclined surfaces 11b and 12b.

On the other hand, in the present embodiment, the transparent front plate 25 that is anxious about the abandonment of the transparent front plate insertion portion that holds the outer peripheral portion of the transparent front plate 25 made of a glass plate is provided with a configuration that ensures the adhesive holding of the transparent front plate 25. The configuration will be described below.

First, the urethane foam 29 filled and foamed in the space between the surface of the transparent front plate 25 on the resin film 27 side and the inner frame 23 and the edge frame 24 has a foaming density at the outer peripheral portion from the central portion of the transparent front plate 25. Is set higher.

Further, the edge frame 24 of the inner frame 23 and the outer peripheral portion of the transparent front plate 25 are bonded via a double-sided tape 30.

Thus, the transparent front plate 25 is bonded and held to the foamed urethane 29 and is also bonded and held to the edge frame 24 by the double-sided tape 30.

As shown in FIG. 10, the double-sided tape 30 includes a horizontal tape portion 30 a located along the upper and lower horizontal edges of the transparent front plate 25 and a vertical tape portion 30 b located along the left and right edges of the transparent front plate 25. . The horizontal tape part 30a is located on the full width of the transparent front plate 25, and is affixed to the edge frame 24 in such a manner that the long side face of the horizontal tape part 30a abuts the short side face of the vertical tape part 30b. The tape bonding surface of the edge frame 24 includes a flat portion 24a located on the outer edge side of the edge frame 24, and a plurality of grooves 24b that are located on the inner edge side of the edge frame 24 and open to the inner edge side of the edge frame 24. It has a configuration. And the double-sided tape 30 is affixed on the edge frame 24 so that it may straddle both the flat part 24a and the groove | channel 24b.

Further, in the present embodiment, as shown in FIG. 8, a portion of the edge frame 24 of the inner frame 23 positioned at the lower end surface of the transparent front plate 25 does not jump forward from the front surface of the transparent front plate 25. A transparent front plate support piece 24d that is superposed on the lower end surface of the transparent front plate 25 with a size of about a size is provided to support the weight of the transparent front plate 25 made of a glass plate.

With this configuration, the front surfaces of the heat insulating doors 10 to 14 are constituted by the transparent front plate 25 which is a glass plate with a colored layer. Therefore, the color of the colored layer 28 is added to the depth, the texture is increased, and the design is high. It will be a thing. Moreover, the surface portion of the transparent front plate 25 constituting the front surface of each of the heat insulating doors 10 to 14 has no protrusion due to the transparent front plate insertion portion or the handle portions 10a to 14a, and becomes a flat surface only of the transparent front plate 25. The whole front surface of the refrigerator in the present embodiment is clean and good with a flat feeling.

Moreover, the heat insulation doors 12 and 13 which consist of the drawer | drawing-out type doors directly under the heat insulation door 10 which consists of the kannon type door of the refrigerator compartment 5 located in the uppermost part in the refrigerator main body 1 have inclined surface 11b, 12b in the upper end part. Since it is formed, it is possible to easily insert a hand into the handle portion 10a of the heat insulating door 10. In particular, in the present embodiment, the upper end portions of the inclined surfaces 11b and 12b are positioned on the back side of the depth of the heat insulating door 10 composed of the kannon-type door located above the inclined surfaces 11b and 12b. Hand insertion into the handle portion 10a recessed in the lower end surface of the door 10 can be easily performed without any obstacles.

As a result, in the refrigerator according to the present embodiment, the gap between the heat insulating door 10 made of a kannon door and the heat insulating doors 11 and 12 made of a pull-out door directly below can be narrowed. Since the gap between the heat insulating door 10 and the heat insulating doors 11 and 12 immediately below the heat insulating door 10 is located at a relatively high place, it is easily visible to the user. However, since the gap is narrow, it is possible to maintain a good sense of unity and flatness between the heat insulating door 10 and the heat insulating doors 11 and 12.

In addition, the gap between the left and right doors of the heat insulating door 10 made of a kannon door is also narrowed by providing the handle portion 10a in the lower end surface of the heat insulating door 10 so that no handle portion needs to be provided between the left and right doors. Therefore, it is possible to maintain the sense of unity and flatness of the left and right doors of the heat insulating door 10 made of a kannon door.

In this way, by maintaining a sense of unity and flatness between the left and right doors of the heat insulating doors 10 and 12 and the heat insulating doors 10 and 12 and the heat insulating door 10 made of a kannon door, the design is It will be even better.

Moreover, the lower end part of the inclined surfaces 11b and 12b of the heat insulating doors 11 and 12 formed of the drawer-type doors is located above the upper edge of the transparent front plate 25 of the heat insulating doors 11 and 12 provided with the inclined surfaces 11b and 12b. I'm allowed. Thus, even when the user opens and closes the heat insulating door 10 composed of a kannon door, the upper end edge of the 25 is below the inclined surfaces 11b and 12b located above the upper edge. It is guarded by the edge and can be prevented from being damaged. That is, even if the transparent front plate insertion portion for holding the transparent front plate 25 made of a glass plate is eliminated, damage to the outer peripheral portion of the transparent front plate 25 can be prevented. Therefore, the user can use the refrigerator in this Embodiment in comfort.

Furthermore, in the present embodiment, the outer peripheral edge of the transparent front plate 25 made of a glass plate is positioned slightly inside the end surface 24c of the edge frame 24. With this configuration, the end face 24c of the edge frame 24 protects not only the upper end portion of the transparent front plate 25 but also the entire outer peripheral edge thereof. Therefore, for example, it is possible to prevent the outer peripheral edge of the transparent front plate 25 from being cracked by hitting something when the heat insulating doors 10 to 14 are transported on the production line or when the heat insulating doors 10 to 14 are exchanged at the user's house. it can.

On the other hand, in the heat insulating doors 10 to 14 of the refrigerator, the foaming density of the urethane foam 29 is higher in the outer peripheral portion than in the central portion of the transparent front plate 25. The outer peripheral portion of 25 is stronger. With this configuration, the adhesive force between the resin film 27 of the transparent front plate 25 and the urethane foam 29 can be reliably maintained over a long period of time.

That is, the outer peripheral portion of the foamed urethane 29 has a high foaming density, in other words, a very finely foamed skin layer, and therefore has a large adhesion area. As a result, the adhesive density between the urethane foam 29 and the resin film 27 of the transparent front plate 25 is high and strong. Therefore, even if the transparent front plate insertion portion is eliminated, the transparent front plate 25 can be securely bonded to the foamed urethane 29 over a long period of time.

Further, in the heat insulating doors 10 to 14, the transparent front plate 25 is bonded and held with foamed urethane 29, and at the same time, the outer peripheral portion of the transparent front plate 25 is bonded to the edge frame 24 of the inner frame 23 by the double-sided tape 30. Therefore, the transparent front plate 25 is bonded to the edge frame 24 through the double-sided tape 30 in addition to the bonding with the urethane foam 29. Therefore, the transparent front plate 25 made of a glass plate with a colored layer on which the resin film 27 is attached is strongly bonded and held to both the foamed urethane 29 and the edge frame 24, and the transparent front plate over a long period of time. An adhesive strength of 25 can be maintained and guaranteed.

In addition, the double-sided tape 30 has the outer peripheral portion of the transparent front plate 25 bonded to the edge frame 24 of the inner frame 23. With this configuration, water applied to the heat insulating doors 10 to 14 is reliably prevented from entering the inside of the door from the end portions of the heat insulating doors 10 to 14, and the urethane foam 29 and the transparent front plate 25 are bonded to each other by the water intrusion. Peeling can be reliably prevented. As a result, the adhesive holding of the transparent front plate 25 can be ensured over a long period of time.

In general, the temperature difference between the inside and outside of a refrigerator is large, and the end of the transparent front plate 25 of the heat insulating doors 10 to 14 is affected by condensation or a severe temperature change due to the cold air from the inside when the heat insulating doors 10 to 14 are opened and closed. . Further, depending on the usage of the user, there is a usage situation where a severe impact is given to the door at the time of opening and closing, and water and juice are overflowing in the heat insulating doors 10 to 14 including the transparent front plate 25 when taking in and out the stored items. If the transparent front plate 25 does not have a transparent front plate insertion portion that covers the end portion of the transparent front plate 25 due to the use environment and actual conditions peculiar to the refrigerator, the end portions of the heat insulating doors 10 to 14 are hung. Water easily enters the door. Therefore, the transparent front plate 25 is in an environment that is easily peeled off from the urethane foam 29.

Under such circumstances, in the present embodiment, the transparent front plate 25 which is the end of the heat insulating doors 10 to 14 and the edge frame 24 of the inner frame 23 are bonded by the double-sided tape 30. With this configuration, the double-sided tape 30 can reliably prevent water and the like from entering between the transparent front plate 25 and the edge frame 24 and entering the door. Therefore, water or the like is prevented from entering the door inward from the end portions of the heat insulating doors 10-14. Therefore, it is possible to prevent adhesion peeling between the transparent front plate 25 and the urethane foam 29, and to maintain and ensure the adhesive strength between the transparent front plate 25 and the urethane foam 29 over a long period of time.

In particular, the double-sided tape 30 has a configuration in which the short side surface of the vertical tape portion 30b is abutted against the long side surface of the horizontal tape portion 30a disposed along the upper and lower horizontal edges of the transparent front plate 25. With this configuration, even when water is splashed on the end portions of the heat insulating doors 10 to 14, the horizontal tape portion 30a of the double-sided tape 30 is located above the heat insulating doors 10 to 14 that easily enter inward due to gravity. Is located uninterrupted over its entire length. With this configuration, it is possible to reliably prevent water from entering the inside of the heat insulating doors 10 to 14, and to further improve the reliability of the adhesive holding of the transparent front plate 25.

Further, the tape bonding surface of the edge frame 24 of the inner frame 23 includes a flat portion 24 a located on the outer edge side of the edge frame 24, and a plurality of openings that are located on the inner edge side of the edge frame 24 and open to the inner edge side of the edge frame 24. Groove 24b. With this configuration, when the double-sided tape 30 is affixed to the edge frame 24 of the inner frame 23, bubbles that are likely to be generated between the double-sided tape 30 and the edge frame 24 are smoothly removed from the plurality of grooves 24b. It is possible to bond the double-sided tape 30 without any problem, and the adhesive strength of the transparent front plate 25 can be further improved.

The life acceleration test of the adhesive force between the transparent front plate 25 and the urethane foam 29 was performed. As a result, by setting the adhesive force to 1.0 g / cm 2 or more, preferably 2.6 g / cm 2 or more, the resin film 27 is surely provided even if the adhesive force is deteriorated due to secular change such as thermal shrinkage of the urethane foam 29. And the adhesive strength between the urethane foam 29 can be ensured. As a result, the adhesive strength of the transparent front plate 25 can be maintained and ensured over a long period of time, and can be made highly reliable.

The method for measuring the adhesive force is described in “JIS K 6850 (Adhesive—Tensile Shear Adhesive Tensile Shear Adhesive Strength Test Method)”, which is a standard method for measuring the overlapping shear adhesive strength of adhesives. Based.

On the other hand, in the refrigerator in the present embodiment, since the colored layer 28 is formed on the resin film 27, it can be formed by a roller or the like. For this reason, it is possible to form fine patterns such as hairline lines that cannot be obtained by silk printing of the colored layer directly on the transparent front plate 25, and the design is markedly improved. Can be improved.

Further, since the transparent front plate insertion portion is abolished, dust, dust or the like does not adhere to and accumulate on the boundary portion between the transparent front plate insertion portion and the transparent front plate 25. Therefore, dust and dust do not become conspicuous in a linear shape as time passes, and the initial high designability can be maintained as it is over a long period of time.

In addition, since the colored layer 28 can be formed by a roller or the like, the adhesive strength to the resin film 27 can be managed and ensured even if the adhesive state deteriorates due to thermal shrinkage or aging of urethane foam. 27 can be reliably prevented from being peeled off.

Thus, when the resin film 27 is positioned between the transparent front plate 25 and the urethane foam 29 and both are adhered by the adhesive force of the urethane foam 29 and the adhesive 26, the following effects are obtained. That is, the colored layer 28 is peeled off from the resin film 27, and the transparent front plate 25 can be prevented from being peeled off from the foamed urethane 29 due to the peeling. Therefore, the adhesive strength of the transparent front plate 25 made of a glass plate with a film can be maintained and secured for a longer period of time.

In addition, even if some external force is applied to the transparent front plate 25 and it should be broken, the plate of the transparent front plate 25 is adhered to the resin film 27 and is prevented from scattering. Safety is also improved.

Further, in the present embodiment, a portion of the edge frame 24 of the inner frame 23 positioned on the lower end surface of the transparent front plate 25 is not projected forward from the front surface of the transparent front plate 25 to the lower end surface of the transparent front plate 25. A transparent front plate support piece 24d to be polymerized is located. With this configuration, the weight of the transparent front plate 25 is supported by the transparent front plate support piece 24 d of the edge frame 24 of the inner frame 23. Therefore, even if the peeling of the transparent front plate 25 partially occurs due to the deterioration of the adhesive force of the transparent front plate 25 by the urethane foam 29, the abnormal situation in which the transparent front plate 25 falls can be surely prevented and a sense of security can be provided. Greatly improved. Further, since the transparent front plate support piece 24d of the edge frame 24 does not jump out from the front surface of the transparent front plate 25, it is not visible from the front surface of the heat insulating doors 10 to 14 like the transparent front plate insertion portion, and the design characteristics and The overall flat feeling can be maintained.

As mentioned above, although the refrigerator in the 1st Embodiment of this invention was demonstrated, this Embodiment was shown as an example when implementing this invention, and various within the range which achieves the objective of this invention. Needless to say, it can be changed.

For example, the transparent front plate 25 may be replaced with a transparent resin plate from a glass plate, which makes it possible to further secure the adhesive strength by reducing the weight and to reduce the cost. Moreover, although the resin film with a colored layer was affixed on the transparent front board 25 and it was set as the transparent front board 25 with a colored layer, this abolishes a resin film and forms a colored layer directly on the transparent front board 25. It is good also as the transparent front board 25 with a colored layer.

Furthermore, the colored layer 28 of the resin film 27 may be on the transparent front plate 25 side as already described. In addition, in order to improve the adhesive strength between the resin film 27 and the urethane foam 29, the surface of the resin film 27 is subjected to corona treatment or plasma treatment, or urethane, polyester or acrylic adhesive is applied. An easy-adhesion layer may be formed. Moreover, you may use a urethane binder or a vapor deposition layer as an easily bonding layer. Further, a vapor deposition layer and / or a urethane binder may be further interposed between the easy-adhesion layer and the urethane foam 29, and the adhesive strength and the design of the colored layer can be improved by using as necessary. it can.

(Second Embodiment)
Hereinafter, the refrigerator in the 2nd Embodiment of this invention is demonstrated, referring drawings. In this embodiment, the front side of the door is made of a transparent front plate such as a glass plate, and the design is improved and the illuminance sensor is not conspicuous while improving the total design of the refrigerator. However, this does not limit the present invention.

11 is an external perspective view of the refrigerator in the second embodiment of the present invention, FIG. 12 is a front view of the refrigerator in the second embodiment of the present invention, and FIG. 13 is in the second embodiment of the present invention. FIG. 14 is a schematic sectional view of the refrigerator, and FIG. 14 is a sectional view taken along line 14-14 of FIG. FIG. 15 is an enlarged cross-sectional view showing the handle of the refrigerator door and the drawer door of the refrigerator according to the second embodiment of the present invention, and FIG. 16 is the refrigerator of the refrigerator according to the second embodiment of the present invention. It is a perspective view which shows one of the doors. 17 is a cross-sectional view taken along line 17-17 in FIG. 16, FIG. 18 is a cross-sectional view taken along line 18-18 in FIG. 16 including an enlarged view of main parts, and FIG. 19 is a control block diagram of a refrigerator according to the second embodiment of the present invention. It is.

11 to 13, a refrigerator main body 51 includes a metal (for example, iron plate) outer box 52 that opens forward, a hard resin (for example, ABS) inner box 53, the outer box 52, and the inner box 53. It is made of hard foamed urethane 54 filled and foamed between.

The refrigerator main body 51 has a plurality of storage compartments formed therein. This storage room is provided in the lower part of the refrigerating room 55 arranged in the upper part of the refrigerator main body 51, the switching room 56 located under the refrigerating room 55, the ice making room 57 arranged in parallel with the switching room 56, the switching room 56 and the ice making room 57. It consists of a freezer compartment 58 located and a vegetable compartment 59 located under the freezer compartment 58.

In addition, the front surface of the refrigerator compartment 55 is closed so as to be freely opened and closed by a heat insulating door 60 formed of a double door type door. Further, the front surfaces of the switching chamber 56, the ice making chamber 57, the freezing chamber 58, and the vegetable chamber 59 are opened and closed by heat insulating doors 61, 62, 63, and 64, each of which is a drawer-type drawer door.

There is a cooling chamber 66 on the back of the refrigerator main body 51, and a cooler 67 that generates cold air and a blower fan 68 that supplies the cold air to each chamber are provided. In addition, a compressor 69 is provided at the back of the top of the main body of the refrigerator main body 51, and a condenser (not shown), a heat radiating pipe 70, a capillary tube 71, and a cooler 67 are sequentially annularly formed. Connected to form a refrigeration cycle. The refrigerant is sealed in the refrigeration cycle and the cooling operation is performed.

Here, each of the doors 60 to 64 is foamed and filled with hard urethane like the refrigerator main body 51 so as to have heat insulation properties, and the front surface thereof is a transparent front plate 75 made of, for example, a glass plate in order to further improve the design. It is configured.

Hereinafter, the structure of the heat insulating door 60 composed of a kannon door will be described as an example with reference to FIGS. The heat insulating doors 61, 62, 63, and 64 that are drawer doors other than the heat insulating door 60 have the same configuration.

As shown in the figure, in particular, in FIG. 16, the inner frame 73 to be positioned inside the refrigerator main body 51 is made of, for example, ABS resin. The edge frame 74 bonded and fixed to the peripheral end surface of the inner frame 73 is also formed of ABS resin. Further, a transparent front plate 75 is laminated on the edge frame 74 that covers the inner frame 73. In the present embodiment, the transparent front plate 75 is formed of a glossy tempered glass plate.

As shown in FIG. 17, the transparent front plate 75 made of this glass plate has a resin film 77 attached to the inner surface thereof with an adhesive 76, and the resin film 77 is made of a picture pattern, for example, a metallic pattern such as a hairline. A colored layer 78 is formed. As a result, the transparent front plate 75 becomes a glass plate with a colored layer.

In this embodiment, the resin film 77 is made of polyethylene terephthalate having high transparency and high mechanical strength, and the colored layer 78 is formed on the side opposite to the transparent front plate 75 in the white system, and the transparent front plate 75 side in the gray system. Is formed. In the drawing, the case where it is formed on the side opposite to the transparent front plate 75 is shown.

Hard urethane 79 filled and foamed is disposed in the space between the resin film 77 side of the transparent front plate 75 and the inner frame 73 and the edge frame 74. The urethane 79 is adhered to the resin film 77 on the inner surface of the transparent front plate 75 together with the inner frame 73 and the edge frame 74 by foaming, and the transparent front plate 75 is bonded and held via the resin film 77.

The outer peripheral edge of the transparent front plate 75 is exposed as it is, and is positioned slightly inside the end edge 74c of the edge frame 74 as shown in FIG. 18, and about 2 mm inside in this embodiment. That is, the glass plate insertion portion is provided in the edge frame 74 as in the conventional glass plate type door, and the glass plate has a configuration different from the configuration in which the outer peripheral edge portion of the glass plate is inserted into the glass plate insertion portion to hold the glass plate. A transparent front plate 75 made of a plate is held.

Therefore, in this configuration, it is necessary to reinforce the adhesive holding force of the transparent front plate 75 by the urethane foam 79. Therefore, in the present embodiment, the urethane foam 79 is configured such that the foam density at the outer peripheral portion is higher than the foam density at the central portion, and the adhesive holding force at the outer peripheral portion is larger than the adhesive holding force at the central portion. The foam density is made higher at the outer peripheral part, for example, by providing an air vent hole at a position corresponding to the foam outer peripheral part of the inner frame 73 so that the urethane foams into the core at the air vent hole part. This is possible. Further, in the present embodiment, as shown in FIGS. 17 and 18, the edge frame 74 and the transparent front plate 75 are bonded with a double-sided tape 80.

On the other hand, as shown in FIGS. 14 and 15, the heat insulating door 60 made of a kannon door is formed with an upward concave portion over the entire length of the lower end surface of the edge frame 74 and provided with a handle portion 60 a. Further, the grip portions 61a and 62a of the heat insulating doors 61 and 62, which are the drawer type doors directly below the heat insulating door 60 which is a kannon door, form an upward concave portion on the lower end surface of the edge frame 74 of the heat insulating doors 61 and 62. It is composed. Further, the grip portions 63a and 64a of the freezer compartment 58 and the vegetable compartment 59 below are formed by forming a downward concave portion on the upper end surface of the edge frame 74 of the heat insulating doors 63 and 64 formed of respective pull-out doors. . And the edge frame 74 which formed each handle part 60a, 60a, 61a, 62a, 63a, 64a does not have the transparent front board insertion part of the transparent front board which consists of a colored glass plate as already stated, Since the handle portions 60a to 64a are recessed in the door end surface and the transparent front plate insertion portion is not provided, the surface of the door group is a flat surface with a flat feeling.

Further, in the present embodiment, the upper end portions of the heat insulating doors 61 and 62 made of a pull-out type door, which are located directly below the heat insulating door 60 made of a kannon door, are inclined surfaces 61b and 62b that descend from the rear to the front. It is set as the structure which can perform the manual insertion to the handle parts 60a and 60a of the heat insulation door 60 easily.

Here, as shown in FIGS. 11, 16, and 18, one of the heat insulating doors 60 to 64, in this embodiment, one of the side end surfaces of the heat insulating door 60, which is a kannon type door, is on the side of the shaft support side. An illuminance sensor 81 is provided on the end face. The power saving operation is performed based on the output from the illuminance sensor 81. That is, as shown in FIG. 19, when the output from the illuminance sensor 81 is less than a predetermined value (in the middle of the night when the user goes to bed and opens and closes the refrigerator door so that food is hardly taken in and out), the main body controller 82 sets the set temperature. Is switched from a normal operation value to a slightly higher power saving operation value to control the compressor 69 and the blower fan 68 to perform a power saving operation.

Since the illuminance sensor 81 is provided on the side end surface of the heat insulating door 60 formed of a kannon type door, the illuminance sensor 81 is hardly noticeable from the front side of the refrigerator, and the refrigerator in the present embodiment configured as described above is the front surface of the door. The design property is not deteriorated unlike those provided in the above.

Moreover, even if a memo or flyer is pasted on the front surface of the heat insulating door 60 including the illuminating sensor 81 incorporating the illuminance sensor 81, the memo or flyer is in close contact with the surface of the illuminance sensor 81 and covers it. There is nothing. Therefore, the illuminance sensor 81 can reliably detect the illuminance in the room. There is no problem even if a memo, a leaflet, or the like is pasted near the side end face of the heat insulating door 60 formed of a kannon door incorporating the illuminance sensor 81 and the front side of the side end face is blocked. That is, the illuminance sensor 81 can detect light from the side surface direction of the refrigerator main body 51 and can reliably detect the room illuminance.

Further, in the present embodiment, the illuminance sensor 81 is provided on the end surface on the side of the shaft support side among the side end surfaces of the heat insulating door 60 made of a kannon door, so that the illuminance sensor 81 receives an impact force generated when the door is opened and closed. Less. Therefore, it is possible to prevent the illuminance sensor 81 from being damaged by an impact force when the door is opened and closed. That is, if the illuminance sensor 81 is provided on the open end side opposite to the end surface on the shaft support side, the impact force received when the door is closed becomes large, and there is a risk of failure. However, if it is provided on the end surface of the heat insulating door 60 on the side of the shaft support side as in the refrigerator in the present embodiment, the impact force is suppressed or hardly applied, and accordingly, the risk of failure is reduced and the life is improved. , Reliability can be improved.

In this embodiment, the illuminance sensor 81 is provided on the end surface on the side of the shaft support side of the door in consideration of reducing the failure opportunity of the illuminance sensor 81, but this is the case of any one side of the outer periphery of the door. As long as it is an end face, it may be up, down, left, or right.

(Third embodiment)
The refrigerator according to the third embodiment of the present invention improves the detection performance of the room illuminance by providing the illuminance sensor by using the structure of the handle portion of the heat insulating door made of the kannon door. Will be described. Other configurations are the same as those of the refrigerator according to the second embodiment of the present invention except for the installation position of the illuminance sensor, and the same reference numerals are given and description thereof is omitted.

As shown in FIG. 20, a unit frame 83 is incorporated in a part of the handle 60a. In the unit frame 83, the sensor substrate 84 is fixed with screws 85, and the illuminance sensor 81 provided on the sensor substrate 84 is installed downward. The lower end surface of the unit frame 83 has a window hole 86 at a position facing the inclined surface 62b at the upper end of the heat insulating door 62 formed of a drawer door, and the window hole 86 is provided with a light receiving body 87 formed of a transparent resin molded product. .

Further, the inclined surface 62b of the heat insulating door 62, which is a pull-out door facing the light receiving body 87, has an angle that reflects light from the front to the illuminance sensor 81 through the light receiving body 87 as indicated by an arrow X in FIG. It is set.

In the present embodiment, the sensor board 84 also serves as an operation board. The sensor board 84 is formed in a strip shape that is long in the lateral direction at the lower end of the heat insulating door 60 that is not shown, and is an operation part such as a touch switch, an LED, or the like. The display unit is incorporated.

In this refrigerator configured as described above, since the illuminance sensor 81 is provided on the handle 60a on the lower end surface of the heat insulating door 60 formed of a kannon type door, the eye is viewed from the front side of the refrigerator as in the second embodiment. It is hard to touch and does not deteriorate the designability like that provided on the front face of the door.

Moreover, even if a memo or a leaflet is attached to the front surface of the heat insulation door 60 incorporating the illuminance sensor 81, the illuminance sensor 81 is not in close contact with the surface of the illuminance sensor 81 and does not cover it. Since the light reaches through the gap between the two, the illuminance in the room can be reliably detected.

Especially in this embodiment, the effect of pasting leaflets and memos can be greatly reduced. That is, if a memo or a leaflet is attached to the lower end of the heat insulation door 60 made of a kannon door, the user can make a memo or a flyer because it interferes with the opening and closing of the heat insulation door 62 made of a pull-out door below the heat insulation door 60. This is because there is almost no possibility of pasting. Therefore, the room illuminance can be detected more reliably than in the case where the illuminance sensor is provided on the side end face of the heat insulating door 60 formed of a kannon door.

In addition, an inclined surface 62b is provided at the upper end portion of the heat insulating door 62 formed of a drawer type door below the heat insulating door 60 provided with the illuminance sensor 81, and light from the room is transmitted by the inclined surface 62b. Since the light is reflected toward the illuminance sensor 81, the detection of the room illuminance is efficiently performed. In order to improve the reflection effect by the inclined surface 62b, the inclined surface 62b is preferably subjected to a reflection process such as aluminum vapor deposition.

In addition, by providing the inclined surfaces 61b and 62b, the handle 60a of the heat insulating door 60 including the upper end surface of the heat insulating doors 61 and 62 including the pull-out type door provided with the inclined surfaces 61b and 62b and the upper door of the kannon type door is provided. Even if the gap between them is narrow, the hand can be easily inserted into the handle portion 60a, and the operability is also good.

Furthermore, even if the user's hand is wet with water when the door is opened and closed, and the water or the like is splashed on the surface or side end surface of the heat insulating door 60 made of a kannon door, It is possible to prevent the handle portion 60a at the lower end of the door from reaching the illuminance sensor installation portion, and it is possible to achieve high reliability without worrying about failure.

Further, since the illuminance sensor 81 is unitized by being attached to the unit frame 83, the illuminance sensor 81 can be easily attached simply by incorporating the unit frame 83 into a part of the handle portion 60a, thereby improving productivity. be able to.

It should be noted that the refrigerator shown in each embodiment has a transparent front plate on the surface portion of the transparent front plate 75 constituting the front surface of each of the heat insulating doors 60 to 64 even if the heat insulating doors 60 to 64 are plural. Since there is no protrusion due to the insertion portion or the grip portions 60a to 64a and only the transparent front plate 75 is a flat surface, the entire front surface of the refrigerator in the present embodiment is clean and good with a flat feeling.

Also, the heat insulating doors 62 and 63, which are drawer doors directly below the heat insulating door 60 of the refrigerator main body 51, are formed with inclined surfaces 61b and 62b at their upper ends. Therefore, as already described, the gap between the heat insulating door 60 and the heat insulating doors 61 and 62 directly below the heat insulating door 60 can be narrowed. The gap between the heat insulating door 60 and the heat insulating doors 61 and 62 located immediately below the heat insulating door 60 is located at a relatively high place, so that it is easily noticeable to the user. However, since the gap is narrow, the sense of unity and flatness between the heat insulation door 60 and the heat insulation doors 61 and 62 can be maintained well.

In addition, the gap between the left and right doors of the heat insulating door 60 made of a kannon door is also narrowed by eliminating the need to provide a handle portion between the left and right doors by providing the handle portion 60a in the lower end surface of the heat insulating door 60. Therefore, it is possible to maintain the sense of unity and flatness of the left and right doors of the heat insulating door 60 made of a kannon door.

Thus, by maintaining a sense of unity and a flat feeling between the left and right doors of the heat insulating doors 60 and 62 and the heat insulating doors 60 and 62 that are made of a kannon type door and the heat insulating door 60 that is a kannon type door, the design is It will be even better.

Furthermore, in the refrigerator of this embodiment, the transparent layer of the transparent front plate 75 is positioned in front of the colored layer 78 by applying the colored layer 78 to the inner surface side of the transparent front plate 75. For this reason, depth is added to the color and the texture is increased. Since the colored layer 78 is formed on the resin film 77, it can be formed by a roller or the like, and the colored layer is directly printed on the transparent front plate 75 by silk printing. In such a case, it is possible to form a fine pattern such as a hairline that is not obtained substantially due to a high defect rate, and the design can be further improved.

And, there is such a flat feeling, and by incorporating the illuminance sensor 81 in the form described in this embodiment in a refrigerator with high designability, a flat feeling and a high design without making the illuminance sensor 81 conscious And an energy-saving refrigerator capable of power-saving operation by the illuminance sensor 81.

On the other hand, the heat insulating doors 60 to 64 of the refrigerator are configured such that the foam density of the urethane foam 79 is higher in the outer peripheral portion than in the central portion of the transparent front plate 75, and the configuration and effect thereof are the same as in the first embodiment. Since it is the same as the structure and effect demonstrated in 1., description is abbreviate | omitted. Other configurations and effects of the double-sided tape 80, the transparent front plate support piece 74d, and the like are the same as the configurations and effects described in the first embodiment, and thus the description thereof is omitted.

As mentioned above, although the refrigerator in the 2nd and 3rd embodiment of this invention was demonstrated, this embodiment is shown as an example when implementing this invention, and the range which achieves the objective of this invention It goes without saying that various changes can be made.

For example, the transparent front plate 75 may be replaced with a transparent resin plate from a glass plate, which makes it possible to further ensure the adhesive strength by reducing the weight and to reduce the cost. Moreover, although the resin film with a colored layer was affixed on the transparent front board 75, it was set as the transparent front board 75 with a colored layer, but this eliminates the resin film and forms a colored layer directly on the transparent front board 75. A transparent front plate 75 with a colored layer may be used.

As described above, the present invention includes a refrigerator main body having heat insulation performance, a plurality of storage rooms provided in the refrigerator main body, and a plurality of heat insulating doors each capable of opening and closing the opening of the storage room. In addition, each heat insulating door is formed with a transparent front plate with a colored layer whose outer peripheral portion is exposed, and the handle portion of each heat insulating door is either the upper end surface or the lower end surface of the edge frame of the heat insulating door. It is formed to be recessed.

As a result, it is possible to exhibit a high texture due to the use of the transparent front plate, and even if there are a plurality of heat insulating doors, the outer peripheral portion of each heat insulating door is not covered by the transparent front plate insertion portion etc. It is exposed and has no protrusions. In addition, the handle part does not protrude from the front surface of the transparent front plate, and the impression of the entire door can be made flat with no protrusions, resulting in a high design with a sense of texture and refreshment. Can be realized.

Further, in the present invention, the heat insulating door of the uppermost storage chamber in the refrigerator main body is used as a kannon type door, and a handle portion is provided in the lower end surface thereof. And the heat insulation door of the storage chamber immediately under it was made into the drawer-type door, and the upper end part of the drawer-type door was made into the inclined surface which falls toward the front from back.

This allows a hand to be easily inserted into the handle provided on the lower end surface of the kannon door, and the kannon door can be opened and closed without any trouble. In addition, even if the gap between the lower end surface of the kannon door and the upper end surface of the pull-out door just below it is narrowed, no trouble occurs. Furthermore, it is possible to further improve the design by narrowing the gap that is relatively conspicuous. In addition, the gap between the left and right doors of the kannon door can be narrowed by recessing the handle on the lower end surface of the door, and the design can be further improved.

Further, according to the present invention, the lower end portion of the inclined surface is positioned above the upper end portion of the transparent front plate of the pull-out door provided with the inclined surface.

As a result, even if the user may open and close the door while opening and closing the kannon door, the transparent front plate will be guarded and damaged by the lower end of the inclined surface located above it. Can be prevented.

Further, the present invention provides an inner frame in which the heat insulating door is located on the storage chamber side, an edge frame of the inner frame, a transparent front plate disposed on the front surface of the frame, a transparent front plate, an inner frame, and an edge frame. And urethane foam filled and foamed in the space between the two. Furthermore, the foaming density of the transparent front plate outer peripheral part of urethane foam was made higher than the foaming density of the central part.

As a result, the outer peripheral portion of the transparent front plate adheres to the skin layer having a high foam density of urethane foam, and the adhesive density is high and strong, so the transparent front plate that holds the outer peripheral portion of the transparent front plate Even if the insertion portion is eliminated, the transparent front plate can be reliably held for a long period of time, and the reliability can be improved.

Also, in the present invention, the outer peripheral portion of the transparent front plate is bonded to the edge frame of the inner frame with double-sided tape.

As a result, the transparent front plate is held in a form that adheres to the edge frame of the inner frame via double-sided tape in addition to bonding with urethane foam, and is held in a form where the adhesive force is applied. become. And even if water splashes on the door edge, this water is blocked from entering inward by the double-sided tape that bonds the transparent front plate and the edge of the inner frame. Adhesive peeling from the transparent front plate can also be reliably prevented. Therefore, the adhesive strength of the transparent front plate can be maintained and ensured over a long period of time, and the reliability can be further improved.

Further, the present invention has an adhesive strength between the transparent front plate and urethane foam of at least 1.0 g / cm 2 or more.

This ensures the adhesive strength between the transparent front plate and the urethane foam even if the urethane foam undergoes heat shrinkage, and can make it highly reliable.

Also, in the present invention, the outer peripheral edge of the transparent front plate is positioned inside the outer peripheral edge of the inner frame.

Thus, even if the outer peripheral portion of the heat insulating door is exposed as it is, the outer peripheral edge of the door is located inside the outer peripheral edge of the edge frame and is protected by the outer peripheral edge of the edge frame. Therefore, it is possible to prevent the transparent front plate from being damaged even if the outer peripheral edge of the transparent plate is inadvertently touched, and it can be used with confidence and high designability can be maintained over a long period of time.

The present invention also includes a refrigerator main body, a storage chamber provided in the refrigerator main body, and a door that opens and closes the opening of the storage chamber, and the door is provided with an illuminance sensor on an end surface of any one of its outer sides. .

Thereby, the illuminance sensor is not seen from the front of the door, and can be kept well without deteriorating the front of the door, that is, the appearance design of the refrigerator. Furthermore, even if a memo or a leaflet is attached to the front face of the door and the front of the door outer peripheral portion is covered, external light reaches the door outer peripheral portion from the lateral direction, so that this can be reliably detected.

In addition, the present invention has a plurality of storage chambers, one of the doors that opens and closes the storage chamber is a kannon door, and the illuminance sensor is a shaft support side of the side end surface of one door of the kannon door. Provided on the side end face.

As a result, the illuminance sensor is positioned on the door's approximate opening / closing axis, and is less susceptible to impact force generated when the door is opened / closed, resulting in failure compared to the case where it is provided on the side opposite the door shaft support side. The risk of this can be greatly reduced.

Also, the present invention has a plurality of storage rooms, and one of the doors that opens and closes the storage room is provided with an illuminance sensor on the lower end surface thereof as a kannon type door. Furthermore, an inclined surface for reflecting light from the outside toward the illuminance sensor is formed on the upper end surface of the door facing the lower end surface of the kannon door provided with the illuminance sensor.

Thereby, the illuminance sensor can detect the light in the room efficiently, and the sensitivity can be improved, and the illuminance detection can be performed more reliably and efficiently. In addition, even if water or the like is splashed on the surface or side of the door from the user's wet hands, it is possible to reliably prevent this water from reaching the illuminance sensor installation part, and there is no need to worry about malfunctions. Can be high.

Further, according to the present invention, an upward concave portion is formed on the lower end surface of the door provided with the illuminance sensor to form a handle portion, and the illuminance sensor is incorporated in a part of the handle portion.

This allows the illuminance sensor to be rationally incorporated using the handle. Furthermore, since the upper end of the door located below the handle portion is an inclined surface, even if the space between the upper end surface of the door and the handle portion of the upper door is narrow, a hand can be easily inserted into the handle portion. And operability can be improved.

In the present invention, the illuminance sensor is incorporated in the unit frame, and a window portion is provided on the lower surface of the unit frame corresponding to the illuminance sensor.

This allows the illuminance sensor to be easily assembled simply by attaching the unit frame to a part of the handle, thereby improving productivity.

As described above, the present invention can be a refrigerator having a high-design door with a flat overall surface without protruding even if the refrigerator door has a texture and is constituted by a plurality of heat insulating doors. Of course, it can be widely applied to commercial refrigerators and wine coolers.

1,51 Refrigerator body 2,52 Outer box 3,53 Inner box 4,54 Urethane foam 5,55 Refrigerated room 6,56 Switching room 7,57 Ice making room 8,58 Freezer room 9,59 Vegetable room 10,11,12 , 13, 14, 60, 61, 62, 63, 64 Thermal insulation doors 10a, 11a, 12a, 13a, 14a, 60a, 61a, 62a, 63a, 64a Handle portions 11b, 12b, 61b, 62b Inclined surface 16, 66 Cooling Chamber 17, 67 Cooler 18, 68 Blower fan 19, 69 Compressor 20, 70 Radiation pipe 21, 71 Capillary tube 23, 73 Inner frame 24, 74 Edge frame 24a Flat part 24b Groove 24c, 74c End face 24d, 74d Before transparent Plate support piece 25,75 Transparent front plate 26,76 Adhesive 27,77 Resin film 28,78 Colored layer 29,79 Urethane foam 30, 80 Double-sided tape 81 Illuminance sensor 82 Main body control unit 83 Unit frame 84 Sensor substrate 85 Screw 86 Window hole 87 Photoreceptor

Claims (12)

1. A refrigerator main body having heat insulation performance, a plurality of storage chambers provided in the refrigerator main body, and a plurality of heat insulating doors capable of opening and closing each opening of the storage chamber, each of the heat insulating doors has a front surface thereof, A refrigerator which is formed by forming a transparent front plate with a colored layer with an outer peripheral portion exposed, and by recessing a handle portion of each heat insulating door on either the upper end surface or the lower end surface of the edge frame of the heat insulating door.
2. The first heat-insulating door of the uppermost first storage chamber in the refrigerator body is a kannon-type door, a first handle portion is recessed in the lower end surface of the first heat-insulating door, and the first The refrigerator according to claim 1, wherein the second heat insulating door of the second storage chamber immediately below the storage chamber is a drawer-type door, and the upper end portion of the second heat insulating door is an inclined surface that descends from the rear toward the front. .
3. The refrigerator according to claim 2, wherein a front end portion of the inclined surface is positioned above an upper end portion of the transparent front plate of the second heat insulating door provided with the inclined surface.
4. The heat insulating door includes an inner frame located on the storage chamber side, an edge frame of the inner frame, the transparent front plate disposed on a front surface of the edge frame, the transparent front plate, the inner frame, and the edge frame. 2. The refrigerator according to claim 1, wherein the foamed urethane is filled and foamed in a space between and a foaming density of the outer peripheral portion of the transparent front plate is higher than a foaming density of the central portion.
5. The refrigerator according to claim 4, wherein the transparent front plate has an outer peripheral portion bonded to the edge frame with a double-sided tape.
6. The refrigerator according to claim 4, wherein an adhesive strength between the transparent front plate and the urethane foam is at least 1.0 g / cm 2 or more.
7. The refrigerator according to claim 4, wherein the transparent front plate has an outer peripheral edge located inside an outer peripheral edge of the edge frame.
8. The refrigerator of Claim 1 which provided the illumination intensity sensor in the end surface of any one edge | side of the outer periphery of the said heat insulation door.
9. 9. The refrigerator according to claim 8, wherein one of the heat insulating doors is a kannon door, and the illuminance sensor is provided on an end surface of one door of the kannon door on the shaft support side.
10. One of the heat insulating doors is a kannon door, and the illuminance sensor is provided on the lower end surface of the kannon door, and the upper end surface of the heat insulating door facing the lower end surface of the kannon door provided with the illuminance sensor. The refrigerator of Claim 8 which formed the inclined surface which reflects the light from the outside toward the said illumination intensity sensor.
11. The refrigerator according to claim 10, wherein an upward concave portion is formed on a lower end surface of the heat insulating door provided with the illuminance sensor to form a handle portion, and the illuminance sensor is incorporated in a part of the handle portion.
12. The refrigerator according to claim 10, wherein the illuminance sensor is incorporated in a unit frame, and a window portion is provided on the lower surface of the unit frame corresponding to the illuminance sensor.

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