JP2014037931A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator in which an operation part is provided at a portion other than a front plate of a door and thereby makes a full part of a vacuum heat insulation material usable and improves thermal insulation performance while reducing a thickness of the door.SOLUTION: A vacuum heat insulation material 27 is disposed so as to contact with the rear side of a front plate 25 forming a door 5, and an operation part 9 which operates and displays the operation state of a refrigerator is provided at a handle 7 that is a constitution part different from the front plate 25 of the door 5.

Description

  The present invention relates to a refrigerator.

  In order to improve the heat insulation performance, the refrigerator is provided with a vacuum heat insulating material inside the outer wall portion and the door, etc., and the foamed heat insulating material is filled with urethane foam in the gap provided with the vacuum heat insulating material. For example, in refrigerator doors, the proportion of the surface area of the vacuum insulation material is small compared to the surface area of the door. We are trying to improve. However, by providing thick urethane foam, the door becomes thick by the thickness of the urethane foam, the depth inside the refrigerator is reduced, and the internal volume of the refrigerator is reduced.

  On the other hand, on the surface of the refrigerator door, there is provided an operation unit composed of, for example, an operation button or a display for controlling or displaying the operation state of the refrigerator. A part of this is recessed or a hole is made. Therefore, since the vacuum heat insulating material cannot be provided on the back side of the recessed or perforated door, the foamed urethane is filled thickly. For this reason, the door is further thickened, and the depth inside the refrigerator is reduced by the thickness of the urethane foam as described above, and the internal volume of the refrigerator is reduced.

  Therefore, there is a demand for a refrigerator in which the door can be made thin and the heat insulation performance does not deteriorate even if the operation portion is provided on the door.

JP 2004-347216 A

  The present invention has been made in view of the above, and an object of the present invention is to provide an operation portion on a portion other than the front plate of the door so that the vacuum heat insulating material can be used entirely and the door is thinned. However, it is providing the refrigerator which can improve heat insulation performance.

  In the refrigerator of the embodiment, a vacuum heat insulating material is disposed in contact with the back side of the front plate constituting the door, and at least one of operation or display of the operation state of the refrigerator is provided on a component different from the front plate of the door. Provide functional means to perform.

It is a perspective view showing the whole refrigerator composition concerning a 1st embodiment of the present invention. It is a front view which shows only the door of the refrigerator compartment of the refrigerator shown in FIG. FIG. 3 is an exploded perspective view of the door shown in FIG. 2. FIG. 3 is an enlarged cross-sectional view showing only a portion near the left end of the door cut along line aa in the door shown in FIG. 2. It is sectional drawing which shows the state of the countersunk screw which cut | disconnects along line bb of FIG. 2, and attaches a handle | steering-material to a face material. It is sectional drawing which shows the cross section of the left end of the door applied to the refrigerator concerning the 2nd Embodiment of this invention. It is a perspective view which shows the whole refrigerator concerning the 3rd Embodiment of this invention. It is a front view which shows only the door of the refrigerator compartment of the refrigerator shown in FIG. FIG. 9 is a perspective view showing the door shown in FIG. 8 slightly showing the back surface of the door from the left free end opposite to the hinge portion. FIG. 10 is a cross-sectional view in which a substantially central portion having an operation portion at a lower portion of the door shown in FIGS. 7 to 9 is cut vertically.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as embodiments) will be described with reference to the drawings.

  FIG. 1 is a perspective view showing the overall configuration of the refrigerator according to the first embodiment of the present invention. The refrigerator 1 shown in the figure is provided with a refrigerator compartment 3 at the top, and the refrigerator compartment 3 is provided with a hinge (not shown) at the right end and a single-open door 5 that opens and closes around the right end. Yes. A handle 7 as a handle is attached to the surface of the free end portion on the left side opposite to the hinge side of the door 5 of the refrigerator compartment 3, and the operating state of each part of the refrigerator 1 is controlled on the handle 7. In addition, an operation unit 9 is also provided which is also a functional means including, for example, operation buttons and a display for displaying. The functional means includes a display unit for displaying an operation state, a control unit for controlling the display, an operation button unit for controlling the operation state, and a control for processing and controlling an operation on the operation button unit. Although these are composed of parts, they may be integrated, or may be separately provided as described later, or only a part of the functions may be provided integrally.

  The refrigerator 1 is provided with a vegetable compartment 11 below the refrigerator compartment 3, and an ice making chamber 13 directly below the vegetable compartment 11 and an upper freezer called a switching chamber that can be changed to any cooling state from refrigeration to freezing. Chambers 15 are provided side by side, and a freezing chamber 17 is provided at the lowermost portion immediately below the ice making chamber 13 and the upper freezing chamber 15.

  FIG. 2 is a front view showing only the door 5 of the refrigerator compartment 3 of the refrigerator 1 shown in FIG. As shown in FIG. 2, a handle 7 is attached to the left end of the door 5 near the free end, and an operation unit 9 is provided on the handle 7. A cap 21 and a door lower cap 23 are attached.

  FIG. 3 is an exploded perspective view of the door 5 shown in FIG. As shown in FIG. 3, the door 5 has a face member 25 that is a front plate that covers the entire front side of the door 5. It is bent backwards so that it is surrounded and fixed, and then bent slightly further inside. The upper door cap 21 and the lower door cap 23 are fitted to upper and lower ends of the face member 25.

  The upper and lower ends of the handle 7 provided with the operation unit 9 are fixed to the face material 25 with four countersunk screws 19. The fixing of the handle 7 to the face material 25 with the countersunk screws 19 is detailed. 5, a conical hole is formed in the face material 25 so that the head of the countersunk screw 19 does not protrude from the face material 25, and the countersunk screw 19 is formed in the conical hole. The head is inserted so that it does not protrude beyond the face material 25. This is to prevent the vacuum heat insulating material from being damaged at the head of the flat head screw 19 when the vacuum heat insulating material is attached to the back side of the face material 25 with an adhesive, as will be described later. 5 is a cross section taken along line bb in FIG.

  Returning to FIG. 3, a rectangular vacuum heat insulating material 27 is provided behind the face material 25, and the vacuum heat insulating material 27 is attached to the back surface of the face material 25 with an adhesive. In addition, around this vacuum heat insulating material 27, another heat insulating material different from the vacuum heat insulating material, which has a heat insulating performance lower than that of the vacuum heat insulating material, but is easy to form according to the shape of the place to be disposed, for example, polystyrene foam ( Foam heat insulating materials 29a, 29b, 29c, and 29d, which are molded articles made of EPS, etc., are provided close to each other so as to surround the vacuum heat insulating material 27 from four directions.

  Further, behind the vacuum heat insulating material 27 and the foam heat insulating materials 29a, 29b, 29c, and 29d, a door inner portion 31 that is a back plate that covers the entire back side of the door 5 is provided. The entire peripheral edge portion near the periphery of the four sides of 31 protrudes in a trapezoidal shape with a narrow cross section toward the inside of the refrigerator compartment 3, and the throat portion 33 is formed elongated. Further, the outside of the throat portion 33 extends slightly outward, and a rectangular frame-shaped gasket 35 shown on the rear side is attached to the extended portion. Specifically, a concave portion (not shown) is formed in the extended portion, and an arrow-like insertion portion of the gasket 35 is inserted into the concave portion, whereby the gasket 35 is attached to the door inner portion 31.

  FIG. 4 is an enlarged cross-sectional view showing only a portion near the left end portion of the door 5 cut along the line aa in the door 5 shown in FIG. As shown in FIG. 4, a vacuum heat insulating material 27 is adhered to the back side of the face material 25 by adhesion, and the door inner side portion 31 constituting the back plate is formed on the back surface opposite to the vacuum heat insulating material 27. Is attached by bonding. Further, the handle 7 having the operation portion 9 is attached to the surface near the left end of the face member 25 by the countersunk screw 19 as described with reference to FIG. Inside the face member 25 to which the handle 7 is attached, the foam heat insulating material 29b made of EPS is disposed, and similarly between the foam heat insulating material 29b and the vacuum heat insulating material 27, it is made of sponge, EPS, or the like. A foam heat insulating material 37 is provided. Moreover, the door inner side part 31 which comprises a backplate bulges largely toward the inside of the refrigerator compartment 3 in the part near an edge part, forms the said throat part 33, and EPS etc. similarly in this throat part 33 The foam heat insulating material 41 which consists of is arrange | positioned.

  A recess 39 into which the insertion portion 35a of the gasket 35 is inserted is formed on the back side of the foam heat insulating material 29b and beside the foam heat insulating material 37. The air cushion portion 35b of the gasket 35 following the insertion portion 35a inserted into the recess 39 protrudes from the recess 39, abuts against the end of the side wall of the refrigerator 1 (not shown), and closes the refrigerator 1 in a sealed state. However, a magnet 35c is attached to the back surface of the air cushion portion 35b, and the magnet 35c is magnetically attracted to a metal portion or the like at the end of the side wall of the refrigerator 1 to completely close the door 5. It is like that.

  Further, on the back side of the foam heat insulating material 29 b and inside the left end portion of the door 5, a substrate 43 on which electric parts constituting the control unit of the operation unit 9 are mounted is disposed.

  In the refrigerator 1 of the present embodiment configured as described above, the operation unit 9 is provided on the handle 7 protruding from the door 5 and provided on the surface of the door 5 on which the vacuum heat insulating material 27 is provided. Therefore, the face material 25 constituting the surface of the door 5 does not have a recess or a hole for the operation portion, so that the vacuum heat insulating material 27 can be widely provided over almost the entire surface of the door 5. The heat insulation performance can be improved, and the door 5 itself can be made thin by using the vacuum heat insulating material 27 having a good heat insulation performance even if it is thin, so that the internal capacity of the refrigerator compartment 3 can be increased.

  Moreover, since the operation part 9 is provided in the handle | steering-wheel 7, while being good also in external appearance, when using the refrigerator 1, the operation part 9 can be seen while operating the handle | steering-wheel 7, The operability can be improved and the movement of the hand and the line of sight can be reduced. The handle 7 is attached from the inside of the face material 25 by the countersunk screw 19, and the countersunk screw 19 does not protrude on the back side of the face material 25, so that the vacuum heat insulating material 27 is not damaged by the countersunk screw 19.

  Furthermore, since it is not necessary to form a recess or a hole in the surface of the door 5 of the refrigerator compartment 3 for mounting the operation unit 9, the door 5 can be standardized as a general-purpose door without the operation unit 9. It can be applied to various refrigerators only by changing the display and operation buttons of the unit 9.

  Further, since the foam heat insulating material 29b is provided at the end of the door 5 with the foam heat insulating material 37 sandwiched between the end of the vacuum heat insulating material 27, the end of the vacuum heat insulating material 27 varies in length. However, the variation of the vacuum heat insulating material 27 can be absorbed by the foam heat insulating material 37 and the foam heat insulating material 29b.

  In the present embodiment, the case where the operation unit 9 is provided on the handle 7 has been described. However, the present invention is not limited to this, and a recess or a hole is formed in the face material 25 to which the vacuum heat insulating material 27 is attached. It is only necessary that the vacuum heat insulating material 27 can be provided widely over almost the entire surface of the door 5.

  FIG. 6: is sectional drawing which shows the cross section of the left end part of the door applied to the refrigerator concerning the 2nd Embodiment of this invention. The door 50 shown in FIG. 6 is provided with the position of the board on which the electrical components constituting the control unit of the operation unit 9 are mounted in the first embodiment shown in FIGS. 1 to 5 and the foam insulation adjacent to the board. Only the shapes of the materials are different, and the other components and functions are the same as those of the refrigerator 1 and the door 5 shown in FIGS. 1 to 5, and the same components are denoted by the same reference numerals and description thereof is omitted.

  That is, in the door 50 shown in FIG. 6, as in the first embodiment, the vacuum heat insulating material 27 is adhered to the back surface of the face material 25 by adhesion, and the inside of the door is disposed on the back side of the vacuum heat insulating material 27. 31 is affixed, and a throat portion 33 is formed in a portion near the end of the door inner portion 31, a foam heat insulating material 41 is disposed inside the throat portion 33, and the left end portion of the face material 25 A handle 7 is attached to the near surface, and an operation portion 9 is provided on the handle 7.

  Similarly, a foam heat insulating material 37 is provided adjacent to the end of the vacuum heat insulating material 27, and a recess 39 is formed adjacent to the foam heat insulating material 37. 35a is inserted, and a magnet 35c is provided inside the air cushion part 35b of the gasket 35, and this magnet 35c is magnetically attracted to a metal part or the like constituting the end face of the side wall 51 constituting the refrigerator compartment 3. The door 50 is completely closed.

  In such a configuration, in the door 50 of the second embodiment, the board on which the electrical components constituting the control unit of the operation unit 9 are mounted is provided at the left end of the door 50 as indicated by reference numeral 430. However, as shown by reference numeral 290, the foam heat insulating material provided between the substrate 430 and the foam heat insulating material 37 extends to the left in FIG. 6, and the substrate is formed by the extended portion 290a. It is formed so as to surround the upper part of 430. In addition, the surface of the substrate 430 on which electrical components and the like are mounted is disposed in parallel to the surface of the foam heat insulating material 290 that extends upward in FIG. 6, and is covered with the foam heat insulating material 290. That is, the foam heat insulating material 290 is configured to cover and insulate the upper part and the right side surface of the substrate 430.

  As shown in FIG. 6, the door 50 is closed, the air cushion portion 35b of the gasket 35 is in contact with the end surface of the side wall 51, and the door 50 closes the refrigerator compartment 3 in a sealed state by the magnetic force of the magnet 35c. As shown by the dotted arrow 601, the cold air in the refrigerator compartment 3 is transmitted to the gasket 35 through the gap between the side wall 51 and the throat portion 33, and the gasket 35 is cooled. A foam heat insulating material 290 is provided between the gasket 35 and the substrate 430 so as not to be transmitted to the substrate 430.

  That is, when the cooling state of the gasket 35 is directly transmitted to the substrate 430, dew may be generated on the substrate 430 due to the cold air, which may cause deterioration of electrical parts on the substrate 430. 35 is provided with a foam heat insulating material 290, and the foam heat insulating material 290 covers and heat-insulates the upper portion and the right side surface of the substrate 430, so that the cool air of the gasket 35 is not directly transmitted to the substrate 430, and dew is generated on the substrate 430. It prevents it from occurring.

  FIG. 7 is a perspective view showing the entire refrigerator according to the third embodiment of the present invention. The refrigerator 10 shown in FIG. 7 is provided with a refrigeration room 3 at the uppermost part, and the refrigeration room 3 has a hinge (not shown) attached to the right end, and a single-open door 55 that opens and closes around the right end. Yes. The upper door cap 21 is attached to the upper end portion of the door 55 of the refrigerator compartment 3, and the lower door cap 230 is attached to the lower end portion.

  In addition, a recess is formed inside the lower side of the door cap 230 near the free end on the left side opposite to the hinge side of the door 55, and the handle 57 is formed by the recess, and a hand is placed on the handle 57. By inserting from the lower side and pulling the door 55 forward, the door 55 rotates about the hinge at the right end and opens. Further, an operation unit 59 composed of, for example, operation buttons and a display for controlling or displaying the operation state of each part of the refrigerator 1 is provided in a substantially central part on the right side of the handle part 57 of the door cap 230. It has been.

  In addition, the refrigerator 10 shown in FIG. 7 is provided with a vegetable room 11 below the refrigeration room 3 as in the refrigerator 1 shown in FIG. An upper freezing chamber 15, which is also referred to as a switching chamber that can be changed to any cooling state, is provided side by side, and a freezing chamber 17 is provided at the bottom immediately below the ice making chamber 13 and the upper freezing chamber 15.

  FIG. 8 is a front view showing only the door 55 of the refrigerator compartment 3 of the refrigerator 10 shown in FIG. As shown in FIG. 8, a hinge portion 61 is provided at the right end of the door 55, and the door 55 rotates and opens around the hinge portion 61. The door 55 is configured by adhering a vacuum heat insulating material 65 to the back side of the face material 63 constituting the front plate by bonding, and attaching a back plate corresponding to the door inner side to the back side of the vacuum heat insulating material 65. Has been.

  FIG. 9 is a perspective view showing the door 55 shown in FIG. 8 with the back surface of the door 55 slightly shown from the left free end portion 55a opposite to the hinge portion 61. As shown in FIG. Below the free end portion 55a of the door 55, a substrate 67 for the operation portion 59 is disposed vertically. Further, the lower door cap 230 is attached to the lower end portion of the door 55. Since the operation portion 59 is attached to the front side of the lower door cap 230, in FIG. It is shown in the figure. As shown in FIG. 4 or FIG. 6, the substrate 67 is adjacent to the free end portion 55a of the door 55 and between the end face plate constituting the free end portion 55a and the foam heat insulating material 29b or 290. However, the present invention is not limited to this.

  FIG. 10 is a cross-sectional view showing a cross-section obtained by cutting a substantially central portion of the operation portion 59 below the door 55 shown in FIGS. 7 to 9 vertically. As shown in FIG. 10, a face material 63 is provided on the front surface of the door 55, and a vacuum heat insulating material 65 is attached to the back side of the face material 63 by adhesion. A cap 230 is attached. The operation portion 59 is attached to the front side of the door lower cap 230, and a substrate 67 for the operation portion 59 is disposed below the inside of the door 55. In addition, this board | substrate 67 is provided in the inside of the free end part 55a of the door 55, as demonstrated in FIG.

  In the refrigerator of the third embodiment configured as described above, the operation unit 59 is provided on the door lower cap 230 and is not provided on the surface of the door 55 on which the vacuum heat insulating material 65 is provided. Therefore, the face material 63 constituting the surface of the door 55 does not have a recess or a hole for the operation portion 59, and therefore, the vacuum heat insulating material 65 can be provided widely over almost the entire surface of the door 55. In addition, the use of the vacuum heat insulating material 65 having a good heat insulating performance even if it is thin allows the door 55 itself to be thinned, and as a result, the internal capacity of the refrigerator compartment can be increased.

  Further, since the operation unit 59 is provided in the lower door cap 230 with the handle 57, the appearance is good, and the door is opened by using the handle 57 when using the refrigerator. The operation unit 59 can be seen while opening and closing 55, so that the operability can be improved and the movement of the hand and the line of sight can be reduced.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1, 10 Refrigerator 3 Cold room 5, 55 Door 7 Handle 9, 59 Operation part 19 Countersunk head 21 Upper cap 23, 230 Lower door cap 25, 63 Face material 27, 65 Vacuum heat insulating material 29a, 29b, 29c, 29d, 290 Foam heat insulating material 31 Door inner side portion 33 Throat portion 35 Gasket 37 Foam heat insulating material 39 Recess 41 Foam heat insulating materials 43, 67, 430 Substrate 51 Side wall 55a Free end portion 57 Hanger portion 61 Hinge portion

Claims (6)

A vacuum heat insulating material disposed in contact with the back side of the front plate constituting the door;
A refrigerator having a functional unit that is provided in a component different from the front plate of the door and performs at least one of operation or display of an operation state of the refrigerator.   2. The refrigerator according to claim 1, wherein the substrate constituting the functional means is disposed at a position overlapping the vacuum heat insulating material in the depth direction.   The refrigerator according to claim 2, wherein a heat insulating material of a molded product is disposed between the substrate and the vacuum heat insulating material.   The refrigerator according to any one of claims 1 to 3, wherein the component different from the front plate of the door is a handle of the door.   The refrigerator according to any one of claims 1 to 3, wherein the component different from the front plate of the door is a door cap.   6. The refrigerator according to claim 5, wherein the functional means is disposed in the vicinity of a handle provided on the cap.

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