JP5884006B2 - refrigerator - Google Patents

Description

  The present invention relates to a refrigerator that prevents condensation at the opening of the refrigerator body and reduces heat penetration into the cabinet due to heat dissipation.

  Conventionally, from the viewpoint of preventing dew condensation at the opening and reducing heat intrusion into the cabinet due to heat dissipation, a part of the capacitor disposed at the front opening is disposed on the side surface side to keep it away from the opening. There is a need for a refrigerator that reduces the heat intrusion into the cabinet by the condenser disposed in the section, improves the cooling efficiency, and increases the energy saving.

  Therefore, a specific capacitor arrangement technique is disclosed (for example, refer to Patent Document 1).

  FIG. 3 is a cooling system piping diagram of a conventional refrigerator.

  The cooling system of the conventional refrigerator 1 shown in FIG. 3 includes a compressor 19, a side condenser 20, a dryer 22, and a capillary tube 23, and includes a front condenser 25 and a welded portion 24 of the side condenser 20. A front capacitor 25 bent in an L shape in the vicinity of the lower vegetable compartment is connected to the side capacitor 20.

  In the above configuration, a part of the front condenser 25 disposed in the vicinity of the refrigerator compartment and the vegetable compartment is shifted to the side wall of the outer box, so that the heat penetration into the refrigerator compartment and the vegetable compartment is reduced by moving away from the front opening. In addition, since the temperature of the refrigerator compartment and the vegetable compartment is also in the plus temperature range, it is located on the side wall near the front opening and can prevent condensation.

Japanese Patent Laid-Open No. 9-310961

  However, in recent years, there is a tendency to further improve the efficiency of the cooling system and save energy.

  In the conventional cooling system piping specification, the cooling efficiency of the refrigerator is lowered due to heat intrusion from the front condenser 25 disposed in the opening of each chamber.

  Further, even if the front capacitor disposed in the opening of the refrigerator compartment is shifted to the side wall surface, there is heat penetration from the shifted front capacitor, and further suppression of heat penetration is required.

  This invention solves the said conventional subject, and it aims at provision of the refrigerator which reduced the heat penetration | invasion into the refrigerator from a front heat radiating pipe, and prevented dew condensation.

  In order to solve the above-described conventional problems, the refrigerator of the present invention is partitioned and formed by a heat insulating partition wall, and a refrigerator compartment and a vegetable compartment are arranged in the upper part, and the refrigerator compartment and the vegetable compartment are arranged in the lower part. In the refrigerator provided with the front heat radiating pipe, the front heat radiating pipe is disposed on either one of the left and right sides of the front opening of the refrigerator compartment and is not disposed on the other.

  Thereby, the heat intrusion into the refrigerator from the front heat radiating pipe is further reduced, and the refrigerator prevents condensation.

  The refrigerator of the present invention can reduce the amount of heat entering from the front heat radiating pipe into the cabinet, and can further save energy.

Front view of the refrigerator in Embodiment 1 of the present invention Cooling system piping diagram showing the refrigerator of the present invention Cooling system piping diagram showing a conventional refrigerator

The invention according to claim 1 includes a front heat radiating pipe which is partitioned by a heat insulating partition wall, has a refrigerated room above, a freezer room and a vegetable room below, and is arranged at the front opening of each room. In the refrigerator, the front heat radiating pipe is formed on the inner surface of the outer side wall of the outer box, which is a position shifted rearward from the flange position of the front opening in the vicinity of one of the left and right sides of the front opening of the refrigerator compartment. The side heat radiating pipe is disposed on the other side of the front heat radiating pipe and connected to the upstream side of the front heat radiating pipe, and disposed on the side wall of the refrigerator. Disposed on the side wall of the other side different from the one side, and disposed in front of the center portion in the depth direction of the side wall, and disposed from the front opening of the front heat radiating pipe. Away, the so-side smaller than the arrangement distance from the front opening of the radiating pipe, aims to reduce the heat penetration amount into the refrigerator from the front radiating pipe, it is possible to further improve the energy saving.

Further, the heat of the side heat radiating pipe is transferred through the side wall to the other side of the front opening where the front heat radiating pipe is not disposed, thereby preventing condensation on the other side and suppressing heat intrusion into the chamber.

The invention according to claim 2 is the invention according to claim 1 , wherein the front heat radiating pipe provided in the front opening of the freezer compartment or the vegetable compartment is disposed in the front opening of the refrigerator compartment. Since the front heat radiating pipe is installed on the same side as the front opening of the refrigerator compartment, it is easy to install the front heat radiating pipe when assembling the refrigerator, reducing pipe breakage and assembling. Can be improved.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. The same reference numerals are given to the same configurations as those of the conventional example or the embodiments described above, and detailed descriptions thereof will be omitted. The present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a front view of the refrigerator according to Embodiment 1 of the present invention.

  As shown in FIG. 1, a refrigerator 100 according to the present embodiment is a refrigerator 100 having a double-spread door at the top, and in a heat insulating box 101 that separates the inside and the outside of the refrigerator 100 in a heat insulating state. A storage compartment divided into a plurality of compartments is provided.

The storage compartment divided into a plurality of refrigerators 100 includes a refrigeration compartment 102, an ice making compartment 105, a changeover compartment 106, a vegetable compartment 103, a freezer compartment 104, and the like that can change the temperature inside the refrigerator. Sometimes referred to as distinct.

  The front opening of the refrigerator compartment 102 located at the top of the refrigerator 100 is provided with a rotary hinge type insulation door (refrigeration compartment door) 107 filled with foam insulation such as urethane, for example, in a shelf-like manner. It is a space.

  In addition, the ice making room 105, the switching room 106, the vegetable room 103, and the freezing room 104 disposed below the refrigerator room 102 are drawer-type storage spaces.

  The heat insulating box 101 is a rectangular parallelepiped box that is formed by filling a heat insulating material 111 such as hard foamed urethane between a metal outer box 112 and a resin inner box 110. . The heat insulating box 101 has a function of blocking heat that tends to flow into the heat insulating box 101 from the outside atmosphere (atmosphere).

  The refrigerated room 102 is a storage room that is maintained at a low temperature so that the contents are not frozen for refrigeration. The lower limit of the specific temperature is usually set at 1 to 5 ° C.

  The vegetable room 103 is a storage room that is arranged at the lowermost part of the heat insulating box 101 and is mainly intended for refrigeration of vegetables. In addition, the vegetable room 103 is set to a temperature that is the same as or slightly higher than that of the refrigerator compartment 102. The lower limit of the specific temperature is 2 ° C to 7 ° C. In addition, it is possible to maintain the freshness of leafy vegetables for a long time, so that it becomes low temperature.

  The freezer compartment 104 is a storage compartment set in a freezing temperature zone. Specifically, although it is usually set at −22 to −18 ° C. for frozen storage, it may be set at a low temperature of −30 to −25 ° C., for example, in order to improve the frozen storage state.

  The ice making chamber 105 is a storage chamber in which an ice making machine (not shown) is provided inward to make ice with the ice making machine and store the ice. The set temperature is almost the same as that of the freezer compartment 104.

  The switching chamber 106 can be switched from a refrigeration temperature zone to a freezing temperature zone according to the use by an operation panel attached to the refrigerator 100.

  A drawer type door 201 that closes the front opening of the drawer type storage room, that is, the vegetable room 103, the freezing room 104, the ice making room 105, and the switching room 106 among the storage rooms provided in the refrigerator 100 is provided.

  A gasket 108 that substantially seals the inside of the refrigerator compartment 102 is formed between the refrigerator compartment door 107 and the front opening.

  Next, FIG. 2 will be described.

  FIG. 2 is a cooling system piping diagram of the present invention. In the figure, a compressor 121 is disposed in a machine room 120 provided on the top surface of the refrigerator 100 at the back of the refrigerator compartment 102, and a discharge pipe 121 a of the compressor 121 is disposed in the back wall of the refrigerator 100. The back heat radiating pipe 122 is connected.

  The back heat radiating pipe 122 extends to the lower back of the refrigerator 100 and is disposed at the lower back of the refrigerator 100. The defrosted water in an evaporating dish (not shown) for collecting defrosted water generated by an evaporator (not shown) connected to the cooling system. Is connected to an evaporation promoting pipe 123 for promoting evaporation.

  A back heat dissipating pipe 122 that is divided and connected is connected to the evaporation promoting pipe 123, and then a bottom heat dissipating pipe 140 that is disposed in the bottom wall of the refrigerator 100 is connected to the evaporation promoting pipe 123. The arranged side heat radiating pipe 124 is connected.

  The side heat radiating pipe 124 is bridged to the side wall on the opposite side by connecting a top heat radiating pipe 125 disposed in the top wall of the refrigerator 100. Thereafter, a front heat radiating pipe 126 is connected.

  The front heat radiating pipe 126 extends through the corner portion of the other side wall and the bottom wall to the front front opening, passes through the left and right side flanges of the bottom vegetable compartment 103, A partition wall 127 between the freezer compartment 104 and the ice making chamber 105 and the switching chamber 106 located above the freezer compartment 104 through the left side of the freezer compartment 104 is arranged by turning in a partition wall 127 between the freezer compartment 104 located at the upper part. The inside of the partition wall 127 that is divided into the upper refrigerator compartment 102 and the upper refrigerator compartment 102 through the left side of the ice making chamber 105 is turned to be arranged inside the front opening. It extends upward and passes through the top wall and is guided into the machine room 120 where the compressor 121 is disposed.

  The front heat radiating pipe 126 is connected to a dryer 128 in the machine room 120 and constitutes a cooling system connected to the compressor 121 via a capillary tube (not shown) and an evaporator.

  Further, the front heat radiating pipe 126 passes through the partition wall 127 that divides each storage room up and down, and is disposed on the left side flange of the refrigerator compartment 102, the ice making compartment 105, the freezer compartment 104, and the vegetable compartment 103 as shown in FIG. The right side flange is not disposed.

  The front heat radiating pipe 126 is fixed to the outer box 112 so as to keep the distance between the pipe and the interior as far as possible.

  Further, the portion of the front heat radiating pipe 126 disposed in the left opening of the refrigerator compartment 102 is disposed on the left side wall surface portion of the outer box 112 at a position shifted rearward from the flange position of the front opening.

  The side heat radiating pipe 124 is disposed on the right side wall 130 of the outer box 112, and the upstream side portion of the side heat radiating pipe 124 is disposed on the front opening side of the right side wall 130 in the depth direction. A downstream pipe is formed toward the rear while flowing the refrigerant in the height direction of the refrigerator 100.

  The upstream side portion of the side heat radiating pipe 124 faces the position of the left side wall surface portion of the outer box 112 shifted rearward from the flange position of the front opening portion so as to be disposed in the left side opening portion of the refrigerator chamber 102 of the front heat radiating pipe 126. The disposition distance from the front opening portion of the front heat dissipating pipe 126 that is disposed at the position is disposed closer to the disposition distance from the front opening portion of the upstream pipe pipe of the side heat dissipating pipe 124. .

  Next, the operation will be described.

  Since the front heat radiating pipe 126 is disposed so as to be biased toward one side of the left and right sides of the front opening of each room, it is possible to reduce the amount of heat intrusion from the front heat radiating pipe 126 into each room.

Further, a side heat radiating pipe 124 is disposed on the other side (right side in the example) different from one side (left side in the example) on which the front heat radiating pipe 126 is disposed. The upstream pipe piping is arranged in front of the central portion in the depth direction of the arranged side wall, so that the heat radiated from the upstream pipe piping is transferred to the side wall of the outer box 112. Condensation at the front opening can be prevented, and no dry pipe is provided at the front opening, and the heat radiating action of the upstream pipe piping of the side heat radiating pipe 124 serves as a dry pipe, thus reducing the amount of heat penetration. Can do.

  In addition, the piping position of the refrigerator compartment 102 having the longest distance among the height dimensions of the front opening of each chamber is shifted from the front opening and arranged on the side wall side of the outer box, so that the heat radiation of the front heat radiating pipe 126 is achieved. Can be prevented from entering the refrigerator compartment 10.

  Further, since the shifted position of the front heat radiating pipe 126 is smaller from the front opening end face than the position of the upstream pipe piping of the side heat radiating pipe 124, the distance from the compressor 121 is smaller than that of the front heat radiating pipe 126. While reducing the heat intrusion into the room due to the heat radiation of the side heat radiating pipe 124 located on the upstream side of the refrigerant flow, it is possible to provide a refrigerator that can prevent condensation and further save energy.

  Further, since the front heat radiating pipe 126 is arranged on the same left side of the left and right sides of the front opening of each chamber, it is easy to perform the mounting work in the process of assembling the front heat radiating pipe to the outer box 112. The bending and breakage of the front heat radiating pipe 126 in the bending process can be reduced.

  Further, although the front heat radiating pipe 126 is disposed on the left side of the front opening and the side heat radiating pipe is disposed on the right side wall, it may be disposed on the opposite side, and the same effect can be obtained.

  As described above, since the refrigerator according to the present invention can prevent condensation while reducing the intrusion heat from the front opening, it can be developed in refrigerators and storages.

102 refrigerator compartment 104 freezer compartment 103 vegetable compartment 126 front heat radiating pipe 124 side heat radiating pipe

Claims (2)

In a refrigerator that is partitioned by a heat insulating partition wall, has a refrigerated compartment above, a freezer compartment and a vegetable compartment below, and includes a front radiant pipe disposed at the front opening of each chamber, the front radiant pipe is , Disposed on the inner surface of the outer side wall of the outer box that is shifted rearward from the flange position of the front opening near the front opening of either one of the left and right sides of the front opening of the refrigerator compartment, The side heat dissipating pipe is connected to the upstream side of the front heat dissipating pipe and disposed on the side wall of the refrigerator, and the side heat dissipating pipe is different from one side where the front heat dissipating pipe is disposed. Disposed on the side wall of the side wall and in front of the center in the depth direction of the side wall, and the distance from the front opening of the front heat radiating pipe is the side heat radiating path. Refrigerators and smaller than arrangement the distance from the front opening of the flop. The front heat radiating pipe provided in the front opening of the freezing room or the vegetable room is disposed on the same front opening side as the front heat radiating pipe disposed in the front opening of the refrigerator compartment. Refrigerator.