JP2016166693A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator with high quality while simplifying a structure.SOLUTION: A plurality of individual inner boxes 115, 116 are arranged and storage chambers 102, 103 having different temperature zones in a vertical direction are formed. A partition plate 117 for partitioning each storage chamber in the vertical direction is formed on mutually opposing wall surfaces 115a, 116a of the upper and lower inner boxes 115, 116 respectively, and also, front ends of the inner boxes 115, 116 are connected and fixed by a metal front plate 120, and a front end surface of the partition plate 117 is formed by the front plate. Thereby, as a refrigerator body forms the partition plate by utilizing the mutually opposing wall surfaces of upper and lower inner boxes for forming the storage chamber, so that simplification of the structure can be achieved. Also, as the metal front plate for connecting the front ends of upper and lower inner boxes becomes the front end surface of the partition plate, irregularity such as a resin front plate can be eliminated, and a flat surface of the partition plate front end surface can be raised.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a refrigerator, and more particularly to its main body configuration.

  Generally, the main body of a refrigerator is composed of an inner box made of resin that forms a refrigerator compartment, a freezer compartment, etc., an outer box made of a thin metal plate that covers the outer periphery of the inner box, and urethane foam filled between them. It is.

  In such a refrigerator main body, a partition plate part that partitions the inside of the inner box into a plurality of storage rooms such as a refrigerator compartment and a freezer compartment is integrally formed in a part of the inner box, thereby simplifying the configuration. (For example, refer to Patent Document 1).

  FIG. 10 shows the refrigerator main body described in Patent Document 1, wherein 11 is a metal outer box, and 12 is a resin inner box. In the inner box 12, an upper inner box 12a and a lower inner box 12b are integrally formed, the front part thereof is connected by a front plate 13, and the rear part is connected via a duct 14 for a cold air passage. A foaming heat insulating material 15 is filled and foamed between the inner box 12 and the outer box 11.

  Thereby, in this refrigerator main body, the bottom wall a of the upper inner box 12a and the ceiling wall b of the lower inner box 12b serve as a partition wall that partitions the interior of the inner box up and down, and a partition plate that partitions the interior of the inner box 12 up and down is separately formed. Therefore, the configuration can be simplified without the need for installation.

JP-A-3-255865

  However, according to the conventional configuration, the front surface of the partition plate portion between the upper inner box 12a and the lower inner box 12b is the front plate 13 that connects the upper inner box 12a and the lower inner box 12b. Since the front plate 13 is an integral part of the upper inner box 12a and the lower inner box 12b and is made of resin, there are many cases where fine irregularities are formed on the surface. Therefore, when the door is opened, the unevenness of the front plate 13 is noticeable, and the quality of the refrigerator is lowered, and there is a problem that the sealing performance between the door and the magnet packing is poor.

  This invention is made | formed in view of such a point, and it aims at providing the high quality refrigerator, maintaining the simplification effect of a structure.

  In order to achieve the above object, the present invention has a refrigerator main body in which a plurality of individual inner boxes are arranged to form a plurality of storage chambers having different temperature zones in the vertical direction, and each of the vertical storage chambers is partitioned. The partition plate is formed by opposing wall surfaces of the upper and lower inner boxes, and the front end of each of the upper and lower inner boxes is connected and fixed with a metal front plate so that the front end surface of the partition plate is the front The structure is formed of a plate.

As a result, the refrigerator body uses the opposing wall surfaces of the upper and lower inner boxes forming the storage chamber to form a partition plate, so that the configuration can be simplified and between the upper and lower inner boxes. Since the metal front plate that connects the front ends of the front plate becomes the front end surface of the partition plate, unevenness like a resin front plate can be eliminated, the flatness of the front end surface of the partition plate can be increased, and the door It is possible to improve the sealing performance with the magnet packing.

  The present invention can increase the flatness of the front end surface portion of the partition plate between the upper inner box and the lower inner box by the above configuration, thereby making a high-quality refrigerator.

Front view of the refrigerator in Embodiment 1 of the present invention Cross section of the refrigerator The perspective view which looked at the inner box of the refrigerator from the front side The perspective view which looked at the inner box of the refrigerator from the back side An exploded perspective view of the inner box of the refrigerator The perspective view which shows the front board connection part of the upper and lower inner box which comprises the inner box of the refrigerator The perspective view which expands and shows the front board connection part of the upper and lower inner boxes which comprise the inner box of the refrigerator The perspective view which cut | disconnects and shows the front plate connection part of the upper and lower inner boxes which comprise the inner box of the refrigerator Enlarged sectional view of the front plate connection part of the upper and lower inner boxes constituting the inner box of the refrigerator Sectional view showing a conventional refrigerator

  1st invention is equipped with the refrigerator main body comprised by filling a foam heat insulating material between an outer box and an inner box, and the inner box of the said refrigerator main body arrange | positions several individual inner boxes, and is a temperature zone in an up-down direction. A plurality of different storage chambers are formed, a partition plate for partitioning the storage chambers in the vertical direction is formed by opposing wall surfaces of the upper and lower inner boxes, and the front ends of the upper and lower inner boxes are formed The front end face of the partition plate is formed by the front plate by being connected and fixed by a metal front plate.

  As a result, the refrigerator body uses the opposing wall surfaces of the upper and lower inner boxes forming the storage chamber to form a partition plate, so that the configuration can be simplified and between the upper and lower inner boxes. Since the metal front plate that connects the front ends of the front and rear surfaces becomes the front end surface of the partition plate, unevenness like the resin front plate can be eliminated, and the flatness of the front end surface of the partition plate can be increased. Moreover, the sealing performance between the door and the magnet-attached packing can be improved.

  According to a second invention, in the first invention, the inner box is configured by connecting and fixing the rear portions of the upper and lower inner boxes, which are the rear of the partition plate, with a duct for a cold air passage.

  As a result, the upper and lower inner boxes are connected not only by the front plate but also by ducts, increasing their rigidity, and the inner box can be moved smoothly during the production process without causing twisting between the upper and lower inner boxes. Yield and productivity can be improved, and cost can be reduced.

  According to a third invention, in the first or second invention, each of the inner boxes is formed by separating upper and lower inner boxes that are integrally molded in advance.

  Thereby, the productivity is improved as compared with the case where the upper and lower inner boxes are separately produced, and the cost can be further reduced.

  According to a fourth invention, in the first to third inventions, a heat-dissipating pipe for preventing condensation is disposed on the back portion of the front plate.

As a result, even if the front end surface of the partition plate is made of a metal front plate, it is possible to prevent condensation from forming on the front plate surface. It can be.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 is a front view of a refrigerator according to Embodiment 1 of the present invention, FIG. 2 is a sectional view of the refrigerator, FIG. 3 is a perspective view of the inner box of the refrigerator as viewed from the front side, and FIG. 4 is an inner box of the refrigerator. FIG. 5 is an exploded perspective view showing the inner box of the refrigerator. FIG. 6 is a perspective view showing a front plate connecting portion of the upper and lower inner boxes constituting the inner box of the refrigerator. 7 is an enlarged perspective view showing a front plate connecting portion of the upper and lower inner boxes constituting the inner box of the refrigerator, and FIG. 8 is a cutaway view showing a front plate connecting portion of the upper and lower inner boxes constituting the inner box of the refrigerator. FIG. 9 is an enlarged cross-sectional view of a front plate connecting portion of the upper and lower inner boxes constituting the inner box of the refrigerator.

  1-9, this refrigerator is equipped with the storage chamber divided into plurality in the refrigerator main body 101 which isolate | separates the inner side and the outer side in the heat insulation state. In the case of this embodiment, as shown in FIG. 2 and the like, it is divided into two storage chambers having different temperature zones. For example, the lower storage chamber 102 is distinguished from the freezer compartment and the upper storage chamber 103 is distinguished from the refrigerator compartment. ing.

  The refrigeration room of the upper storage room 103 is set to a temperature at which food is not frozen, usually about 1 ° C. to 5 ° C., and the storage room 102 serving as the lower freezing room is set to about −20 ° C. Some temperature differences between the storage chambers 102 and 103 are large.

  In addition, a cooling chamber that houses a cool air circulation fan 104 that circulates cool air in each of the storage chambers 102 and 103, a cooler 105 that generates the cool air, and the like, at the back of the lower storage chamber 102 that becomes the freezing chamber 106 is provided.

  Here, the refrigerator body 101 is configured by filling and foaming a foam heat insulating material 112 such as hard foam urethane between an outer box 110 made of a thin metal plate and an inner box 111 made of resin such as polystyrene. The heat which is going to flow into the inside of the refrigerator main body 101 from the other atmosphere is cut off.

  The refrigerator also includes a first door 113 that opens and closes the storage chamber 102 that serves as the freezer compartment, and a second door 114 that opens and closes the storage chamber 103 that serves as the refrigerator compartment. Is rotatably attached to the refrigerator main body 101 and is configured by filling and foaming hard foamed urethane.

  As shown in FIGS. 3 to 9, particularly FIGS. 3 to 5, the inner box 111 of the refrigerator main body 101 includes a plurality of individual inner boxes 115 and 116 arranged in the vertical direction, ie, storage rooms having different temperature zones, A storage chamber 103 serving as a refrigerator compartment and a storage chamber 102 serving as a freezer compartment are formed. The opposing wall surfaces 115a, 116a of the individual inner boxes 115, 116 serve as partition plates 117 that partition the upper and lower storage chambers 102, 103.

  The individual inner boxes 115 and 116 are integrated by connecting the front end flanges 118 and 119 of the opposing wall surfaces 115a and 116a with a metal front plate 120, and at the rear of the partition plate 117. The rear parts of the lower inner boxes 115 and 116 are connected and fixed by the forward duct 121 and the return duct 122 for the cold air passage.

As shown in FIGS. 8 and 9, the front plate 120 has a superposed piece 123 formed by folding the entire upper and lower ends into a substantially U shape, an engaging piece 124, and an engaging space 125 positioned therebetween. Have. The engagement space 125 is fitted and attached to the front end flanges 118 and 119 of the inner boxes 115 and 116, and the front ends of the inner boxes 115 and 116 are connected and integrated.

  The front end flanges 118 and 119 of the inner boxes 115 and 116 into which the engagement space 125 of the front plate 120 is fitted have a recess 126 that is slightly wider than the width of the engagement space 125 of the front plate 120. The engagement space 125 is press-fitted into the concave portion 126.

  In addition, a dew condensation prevention heat radiation pipe 127 through which the refrigerant circulating in the cooler 105 flows is fitted into a concave strip portion 126 provided on the front end flange 118, 119 of each inner box 115, 116, and this dew condensation prevention The heat radiating pipe 127 has a shape in which it is pressure-bonded to the overlapping piece portion 123 of the front plate 120.

  In this embodiment, the cool air circulation fan 104 is incorporated in the cool air passage forward duct 121 among the ducts connecting the rear portions of the upper and lower inner boxes 115 and 116.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, in this refrigerator, a plurality of individual upper and lower inner boxes 115 and 116 are arranged to form a plurality of storage chambers 102 and 103 having different temperature zones in the vertical direction, and the upper and lower inner boxes 115 and 116 are relative to each other. Since the partition plate 117 is formed by the facing wall surfaces 115a and 116a, the configuration can be simplified. That is, when partitioning a refrigeration room, a freezing room, etc., it is not necessary to incorporate a partition plate that is separate from the inner box 111 as in the prior art to form a partition, such as a refrigeration room or a freezing room. Since the partition plate is not required, the configuration can be simplified and the cost can be reduced.

  The front end surface of the partition plate 117 formed by the wall surfaces 115a and 116a of the inner boxes 115 and 116 is constituted by a metal front plate 120 that connects the front ends between the upper and lower inner boxes 115 and 116. As a result, unevenness unlike the resin front plate does not occur, and the flatness of the front end surface of the partition plate 117 can be increased. Therefore, when the user opens the first door 113 or the second door 114, the front end surface of the partition plate 117 is a flat surface having no unevenness and contributes greatly to improving the quality. Become. Moreover, the sealing performance between the door and the magnet-attached packing can be improved.

  Furthermore, in the present embodiment, each of the inner boxes 115 and 116 is formed by integrally forming the upper and lower inner boxes and separating them, and the upper and lower inner boxes 115 and 116 are produced separately. As a result, the productivity is improved and the cost can be further reduced.

  The upper and lower inner boxes 115 and 116 may be formed separately from the beginning without being integrally molded and separated.

  In this embodiment, the inner box 111 has the rear portions of the upper and lower inner boxes 115 and 116 behind the partition plate 117 connected and fixed by the forward duct 121 and the return duct 122 for the cold air passage. Even if the upper and lower inner boxes 115 and 116 are simply connected together by the front plate 120, the rigidity is high. Therefore, when the inner box 111 is moved to be incorporated into the outer box 110 during the production process, the upper and lower inner boxes 115 and 116 can be smoothly produced without causing torsional breakage and the like, and the yield and productivity can be improved. Cost can be reduced.

In addition, in this embodiment, the front plate 120 has an engaging space 125 between the overlapping piece portion 123 and the engaging piece portion 124 provided in the entire lateral direction of the upper and lower box bodies 115 and 116. Since these box bodies 115 and 116 are connected and integrated by press-fitting to the front end flanges 118 and 119, foaming is performed between the wall surfaces 115 a and 116 a of the upper and lower inner boxes 115 and 116 that become the partition plate 117. For example, it is possible to prevent a part of the heat insulating material 112 from leaking out from, for example, a part of the substantially central portion in the lateral direction. Therefore, even when the front end flanges 118 and 119 of the upper and lower inner boxes 115 and 116 are connected and integrated by the front plate 120, a high yield can be secured, and stable quality and cost reduction can be achieved.

  In addition, a condensate prevention heat dissipating pipe 127 is provided in the concave portion 126 provided in the front end flange 118, 119 of each of the upper and lower inner boxes 115, 116. Since it is press-contacted to 123, it can also prevent that dew condensation arises on the front-plate surface, and can improve reliability. In particular, even if the front plate 120 is made of metal and easily affected by low-temperature conduction from the storage room, this can be warmed by heat from the heat-dissipating pipe 127 for preventing condensation, and the occurrence of condensation can be reliably prevented. The quality improved by increasing the flatness with the front plate can be further increased without dropping by condensation, which is effective.

  Further, since the front plate 120 is provided with a superposed piece portion 123 in the portion to be press-fitted to the front end flanges 118 and 119 of the upper and lower inner boxes 115 and 116, the rigidity is high. Even if a deflection peculiar to resin molding occurs on the front end flanges 118 and 119 side, the flatness can be improved by correcting this, and in combination with the fact that the front end surface of the partition plate is made of the metal front plate 120, its quality is improved. Can be even higher.

  In this refrigerator, the entire area between the wall surfaces 115a, 116a of the upper inner box 115 and the lower inner box 116 is filled with the foam heat insulating material 112. Therefore, the heat insulation is much higher than a separate partition plate made of foamed polystyrene, etc., and the inner box on the higher set temperature side, in this embodiment, the upper inner box that becomes the refrigerator The heat insulation between 115 and the lower inner box 116 serving as a freezer compartment having a low set temperature is good. As a result, it is possible to strongly suppress the heat transfer from the upper inner box 115 to the lower inner box 116, and accordingly, the frequency of cooling the lower inner box 115 is reduced and the power consumption is reduced. Can do.

  Further, since the cool air circulation fan 104 is incorporated in the forward duct 121 of the ducts connecting the rear portions of the upper and lower inner boxes 115, 116, if this is modularized, it can be applied to various types of refrigerators. In addition, the cost can be reduced by using the cooling air circulation fan 104 in common.

  As mentioned above, although the refrigerator which concerns on this invention has been demonstrated using the said embodiment, this invention is not limited to this, A various change is possible within the range which achieves the objective of this invention. Needless to say. Therefore, it should be thought that embodiment disclosed this time is an illustration and restrictive at no points. That is, the scope of the present invention is shown not by the above description but by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

  As described above, the present invention can provide a high-quality refrigerator by increasing the flatness of the front end surface portion of the partition plate between the upper inner box and the lower inner box. Is also widely applicable.

101 Refrigerator body 102 Storage room (freezer room)
103 Storage room (refrigerated room)
104 Cooling air circulation fan 105 Cooler 106 Cooling chamber 110 Outer box 111 Inner box 112 Foam insulation 113 First door 114 Second door 115 Upper inner box 116 Lower inner box 115a, 116a Wall surface 117 Partition plate 118, 119 Front end flange DESCRIPTION OF SYMBOLS 120 Front plate 121 Outward duct 122 Return duct 123 Superposition | polymerization piece part 124 Engagement piece part 125 Engagement space 126 Recessed part 127 Radiation pipe for preventing dew condensation

Claims (4)

A refrigerator main body is formed by filling a foam heat insulating material between an outer box and an inner box, and the inner box of the refrigerator main body forms a plurality of individual inner boxes to form storage rooms having different temperature zones in the vertical direction. In addition, a partition plate for partitioning the storage chambers in the vertical direction is formed by opposing wall surfaces of the upper and lower inner boxes, and the front ends of the upper and lower inner boxes are connected and fixed by a metal front plate. And the refrigerator which formed the front-end surface of the said partition plate with the said front plate. The refrigerator according to claim 1, wherein the inner box has a rear part of the upper and lower inner boxes, which is the rear of the partition plate, connected and fixed by a duct for a cold air passage. The refrigerator according to claim 1 or 2, wherein each of the upper and lower inner boxes is constituted by separating upper and lower inner boxes that are integrally molded in advance. The refrigerator according to any one of claims 1 to 3, wherein a heat-dissipating pipe for preventing condensation is disposed on the back of the front plate.