JP5718659B2 - refrigerator - Google Patents

Description

  Embodiments of the present invention relate to a refrigerator.

  Conventionally, for example, in a refrigeration cycle incorporated in a refrigerator main body, a capillary tube constituting a part of a condenser and a suction pipe connecting a cooler to a compressor are arranged close to each other. The efficiency of the refrigeration cycle is improved by exchanging heat between the capillary tube and the suction pipe.

  In this case, the capillary tube and the suction pipe are arranged so as to be folded back inside the heat insulating wall on the back of the storage chamber, thereby ensuring a sufficient length for the heat exchange (for example, , See Patent Document 1).

JP 2002-71262 A

  However, providing pipes constituting a part of the refrigeration cycle such as capillary tubes and suction pipes inside the heat insulating wall has a problem that workability when assembling the refrigerator main body is not good. For this reason, it is conceivable to provide the above-mentioned pipes and the like in the storage chamber so as to be positioned inside the heat insulating wall. However, in this case, there is a problem that the capacity of the storage chamber is pressed by these pipes.

  Then, the refrigerator which can arrange | position the suction pipe which comprises a part of refrigerating cycle in the temperature suitable position in a refrigerator main body is provided, suppressing the fall of the capacity | capacitance of a storage room.

The refrigerator of the embodiment includes a refrigerator main body having a storage chamber, a refrigeration cycle that is incorporated in the refrigerator main body and includes a cooler and a suction pipe that returns the refrigerant from the cooler to the compressor, and the storage chamber A cold air supply duct that is provided on a back surface portion and supplies cold air from the cooler to the storage chamber. The suction pipe is provided at a side of the cold air supply duct. The storage room is a storage room in a refrigeration temperature zone and a storage room in a freezing temperature zone. A heat insulating member is interposed between the suction pipe and each storage chamber.

A longitudinal side view showing a schematic configuration of the entire refrigerator according to the first embodiment. Configuration diagram of refrigeration cycle Rear view of the refrigerator body excluding the back wall of the heat insulation box Perspective view showing attachment of suction pipe to heat insulation box In FIG. 3, a cross-sectional plan view along the line AA FIG. 3 equivalent view according to the second embodiment Perspective view showing the structure of the suction pipe FIG. 3 equivalent view according to the third embodiment

  Hereinafter, refrigerators according to a plurality of embodiments will be described with reference to the drawings. In each embodiment, substantially the same constituent parts are denoted by the same reference numerals and description thereof is omitted. Moreover, in each embodiment, the left-right direction is defined on the basis of the refrigerator main body 10 seen from the front.

(First embodiment)
As shown in FIG. 1, the refrigerator main body 10 includes a plurality of storage chambers 14 to 17 described later in a vertically long rectangular box-shaped heat insulating box body 11 whose front surface is open. The heat insulating box 11 is filled with a foam heat insulating material 12 such as urethane foam between an outer box 111 made of steel plate and an inner box 112 made of synthetic resin, and further, the entire back surface of the heat insulating box 11 is inside the back wall. It has the vacuum heat insulating material 13 which covers. The vacuum heat insulating material 13 stores, for example, a core material obtained by compressing and curing a laminated material of inorganic fibers such as glass wool in a bag body including a metal layer in order to obtain a gas barrier performance, and the inside is evacuated by vacuum evacuation. It is configured to be sealed under reduced pressure. Such a vacuum heat insulating material 13 exhibits high heat insulation performance by making the inside a vacuum state and suppressing heat conduction of air.

  In the heat insulation box 11, a refrigerator compartment 14 and a vegetable compartment 15 are provided in order from the top as a storage compartment, and an ice making compartment 16 and a small freezer compartment (not shown) are provided side by side below, and below these are a freezer compartment. 17 is provided. An automatic ice making device 18 is provided in the ice making chamber 16. The refrigerator compartment 14 and the vegetable compartment 15 are both storage compartments in a refrigerated temperature zone, for example, a positive temperature zone of 1 to 4 ° C., and are partitioned vertically by a plastic partition wall 19. A hinged heat insulating door 20 is provided on the front surface of the refrigerator compartment 14, and a drawer heat insulating door 21 is provided on the front surface of the vegetable compartment 15. An upper case 22 and a lower case 23 constituting a storage container are connected to the back surface portion of the heat insulating door 21.

  The ice making room 16, the freezing room 17, and the small freezing room (not shown) are all storage rooms in a freezing temperature zone, for example, a minus temperature zone of −10 to −20 ° C., the vegetable room 15, the ice making room 16, and the small freezing room. The room is partitioned up and down by a heat insulating partition wall 24. A drawer-type heat insulating door 25 is provided on the front surface of the ice making chamber 16, and an ice storage container 26 is connected to the rear surface of the heat insulating door 25. A drawer-type heat insulating door 28 to which a storage container 27 is connected is also provided on the front surface of the freezer compartment 17. Although not shown in detail, a drawer-type heat insulating door connected to a storage container is also provided on the front surface of the small freezer compartment.

A refrigeration cycle 29 (see FIG. 2), which will be described in detail later, is incorporated in the refrigerator body 10 in order to cool each storage room. The refrigeration cycle 29 includes a refrigeration cooler 30 for cooling a refrigeration temperature zone storage room (the refrigeration room 14 and the vegetable room 15), and a refrigeration temperature zone storage room (the ice making room 16, the freezing room 17, and the illustration). A cooling refrigerator 31 for cooling the small freezer chamber), a compressor 33, and a condenser 34 (see FIG. 2). The refrigeration cycle 29 is controlled by a control device (not shown) on which a microcomputer or the like is mounted.
As shown in FIG. 1, a machine room 32 is formed on the back side of the lower end of the refrigerator body 10. In the machine room 32, the compressor 33, the condenser 34 (see FIG. 2), a cooling fan (not shown) for cooling them, and the like are disposed.

  In addition, the refrigeration cooler 30 is provided on the back side of the vegetable compartment 15, which is a refrigeration temperature zone storage compartment of the refrigerator body 10. A refrigeration blower fan 35 for circulating the cold air generated by the refrigeration cooler 30 is provided above the refrigeration cooler 30 on the back side of the refrigeration chamber 14 which is a storage room in the refrigeration temperature zone. Yes. Further, a refrigeration cool air supply duct 36 is disposed so as to cover the refrigeration cooler 30 and the refrigeration blower fan 35. As shown in FIG. 3, the refrigerated cold air supply duct 36 is disposed so as to extend upward with a certain width in the rear portion of the storage room (the refrigeration room 14 and the vegetable room 15) in the refrigeration temperature zone, and the upper part thereof. A plurality of refrigerating cold supply ports 361 that open in the refrigerating chamber 14 are provided.

  In this case, the lower end portion of the refrigeration cool air supply duct 36 is a refrigeration cooler chamber 37 that houses the refrigeration cooler 30 below the refrigeration blower fan 35. The refrigeration cooler chamber 37 is formed with a lower suction port 371 that is partially open on the lower side to communicate the vegetable chamber 15 with the inside of the refrigeration cooler chamber 37, and a part on the upper side. An upper suction port 372 that opens and communicates between the refrigerator compartment 14 and the refrigerator compartment 37 is formed. Further, the refrigeration cooler 30 and the refrigeration cool air supply duct 36 are provided with the vacuum heat insulating material 13 behind them and the entire back surface is covered with the vacuum heat insulating material 13.

  When the refrigeration blower fan 35 is driven in this configuration, the air in the refrigeration chamber 14 and the vegetable compartment 15 is cooled by the suction of the refrigeration blower fan 35 mainly as indicated by white arrows in FIG. It is sucked into the chamber 37. The air cooled by the refrigeration cooler 30 through the refrigeration cooler chamber 37 is supplied from the plurality of refrigeration cool air supply ports 361 of the refrigeration cool air supply duct 36 by the air blowing action of the refrigeration blower fan 35. 14 is blown out. A part of the cold air blown into the refrigerator compartment 14 is also supplied into the vegetable compartment 15, and the air that has cooled the refrigerator compartment 14 and the vegetable compartment 15 again enters the refrigerator compartment 37 for refrigeration from the suction ports 371 and 372. Inhaled. Thus, the circulation of cold air is performed, and the refrigerator compartment 14 and the vegetable compartment 15 are cooled to a temperature in the refrigerator temperature zone.

  On the other hand, the refrigeration cooler 31 is provided on the back surface of the freezer compartment 17 which is a storage room for the freezing temperature zone of the refrigerator body 10. In addition, the refrigeration blower fan for circulating the cold air generated by the refrigeration cooler 31 is provided above the refrigeration cooler 31 at the back of the ice making chamber 16 and the small freezer compartment, which are storage chambers for the freezing temperature zone. 38 is provided. Further, a refrigeration cool air supply duct 39 is disposed so as to cover the refrigeration cooler 31 and the refrigeration blower fan 38. As shown in FIG. 3, the refrigeration cold air supply duct 39 is provided with a certain width at the back surface of the storage room (the ice making room 16, the freezing room 17, and the small freezing room) in the freezing temperature zone. The refrigeration cold air supply duct 39 is provided with an upper air outlet 391 for supplying cold air to the ice making chamber 16 and the small freezer compartment, and a lower air outlet 392 for supplying cold air to the freezer compartment 17.

  In this case, the lower end portion of the refrigeration cool air supply duct 39 is a refrigeration cooler chamber 40 that houses the refrigeration cooler 31 below the refrigeration blower fan 38. The freezer cooler chamber 40 is formed with a return port 401 that is open at the bottom and communicates the freezer chamber 17 and the freezer cooler chamber 40. Further, the refrigeration cooler 31 and the refrigeration cool air supply duct 39 are also provided with the vacuum heat insulating material 13 behind them, and the entire back surface is covered with the vacuum heat insulating material 13.

  When the refrigeration blower fan 38 is driven in this configuration, the air in the freezer compartment 17 is sucked into the refrigeration cooler compartment 40 from the return port 401 by the suction action of the refrigeration blower fan 38. The air cooled by the refrigeration cooler 31 through the refrigeration cooler chamber 40 is supplied from the outlets 391 and 392 by the blasting action of the refrigeration blower fan 38 to the freezing temperature zone storage chamber (the ice making chamber 16 and the refrigeration chamber 16). Chamber 17, small freezer room) and again sucked into the freezer cooler chamber 40 from the return port 401. In this way, the circulation of the cold air is performed, and the ice making chamber 16, the freezing chamber 17, and the small freezing chamber are cooled to a temperature in the freezing temperature zone.

  Next, the configuration of the refrigeration cycle 29 will be described in detail. As shown in FIG. 2, the refrigeration cycle 29 includes a compressor 33, a condenser 34, a dryer 41, a three-way valve 42, a refrigeration side capillary tube 43, a refrigeration side capillary tube 44, and a refrigeration in the order of refrigerant flow. The cooler 30 for cooling and the cooler 31 for freezing are connected annularly. A condenser 34 and a dryer 41 are sequentially connected to the high-pressure discharge port of the compressor 33 via a connection pipe 45. A three-way valve 42 is connected to the discharge side of the dryer 41. The three-way valve 42 has one inlet to which the dryer 41 is connected and two outlets. The refrigeration side capillary tube 43 and the refrigeration cooler 30 are sequentially connected to one of the two outlets of the three-way valve 42. The refrigeration cooler 30 is connected to the compressor 33 via a refrigeration-side suction pipe 46 that is a connecting pipe.

  The free side capillary tube 44 and the freezing cooler 31 are sequentially connected to the other of the two outlets of the three-way valve 42. The refrigeration cooler 31 is connected to the compressor 33 via a refrigeration-side suction pipe 47 that is a connection pipe. A check valve 48 is provided between the refrigeration cooler 31 and the compressor 33 to prevent the refrigerant from the refrigeration cooler 30 from flowing back to the refrigeration cooler 31 side.

  Now, the arrangement of the refrigeration side suction pipe 46 and the refrigeration side suction pipe 47 will be described. As shown in FIGS. 3 and 4, the refrigeration side suction pipe 46 and the refrigeration side suction pipe 47 are routed around the inner back surface of the heat insulating box 11, so that the refrigeration cold air supply duct 36 and the refrigeration cold air supply duct are provided. It is arranged on the side of 39. Specifically, the refrigeration-side suction pipe 46 exits from the refrigeration cooler 30, extends to the left of the refrigeration cooler 30 (right in FIG. 3), and then bends upward. And after extending upwards, it makes a U-turn at the upper end of the back surface part and extends downward straight. Then, it turns to the right (left in FIG. 3) at a height that has reached the upper surface of the heat insulating partition wall 24 located between the refrigeration cooler 30 and the refrigeration cooler 31. Then, it extends to the right side (left side in FIG. 3) of the refrigeration cooler 30 in parallel with the upper surface of the heat insulating partition wall 24, then turns downward and extends into the machine chamber 32 and is connected to the compressor 33. Yes.

  As shown in FIGS. 3 and 4, the refrigeration-side suction pipe 47 is also arranged around the refrigerated cold air supply duct 36 and the refrigerated cold air supply duct 39 by being routed around the inner back surface of the heat insulating box 11. ing. Specifically, the refrigeration-side suction pipe 47 exits from the refrigeration cooler 31, extends to the left of the refrigeration cooler 31 (right in FIG. 3), and then bends upward. Then, after extending upward in parallel with the left side (right side in FIG. 3) of the refrigeration side suction pipe 46, it makes a U-turn at a position below the upper end of the refrigeration side suction pipe 46 and extends downward. Then, it turns to the right (left in FIG. 3) at a height that has reached the upper surface of the heat insulating partition wall 24. Then, it extends to the right side (left side in FIG. 3) of the refrigeration cooler 31 in parallel with the refrigeration-side suction pipe 46, and then bends downward into the machine chamber 32 to connect to the compressor 33. Has been.

  Although not shown in detail, the refrigeration side capillary tube 43 is brazed to the refrigeration side suction pipe 46 so that the refrigerant flows in opposite directions. Similarly, the refrigeration side capillary tube 44 is brazed to the refrigeration side suction pipe 47 so that the refrigerant flows in opposite directions. With this configuration, heat exchange is performed between the refrigeration side capillary tube 43 and the refrigeration side suction pipe 46, and between the refrigeration side capillary tube 44 and the refrigeration side suction pipe 47.

  Here, the storage room (the refrigeration room 14 and the vegetable room 15) in the refrigeration temperature zone has a higher temperature than the storage room in the freezing temperature zone (the ice making room 16, the freezing room 17, and the small freezing room). For this reason, compared with the back part of the storage room (the ice making room 16, the freezing room 17, and the small freezing room) of the freezing temperature zone, the back part of the storage room (the freezing room 14 and the vegetable room 15) of the refrigerating temperature zone has a capillary. The vicinity of the outlets of the suction pipes 46 and 47 that have exchanged heat with the tubes 43 and 44 is difficult to be cooled, and is suitable for placing the suction pipes 46 and 47 in terms of temperature. And the suction pipes 46 and 47 are arranged in a U-turn in the rear part of the storage room (refrigeration room 14 and vegetable room 15) in a refrigeration temperature zone suitable for temperature, so that the capillary tubes 43 and 44 are connected to each other. A sufficient length for heat exchange is ensured and heat exchange is performed efficiently.

  As shown in FIG. 4, a heat insulating member 49 is interposed on the storage chamber side in a portion passing through the vicinity of each storage chamber in the refrigeration side suction pipe 46 and the freezing side suction pipe 47. This heat insulation member 49 is comprised from molded articles, such as a polystyrene foam and urethane foam which have heat insulation and electrical insulation, for example. The heat insulating member 49 has a crank shape as a whole, and has an upper end portion 491 extending in the vertical direction on the left side of the rear portion of the refrigeration temperature storage room (the refrigeration room 14 and the vegetable room 15), and the upper surface of the heat insulation partition wall 24. An intermediate portion 492 extending left and right along the portion and a lower end portion 493 extending in the vertical direction on the right side of the back surface of the storage room (the ice making room 16, the freezing room 17, and the small freezing room) in the freezing temperature zone are integrally formed. Have.

  The thickness of the heat insulating member 49 is higher than that of the upper end portion 491 located in the vicinity of the storage room (the refrigeration room 14, the vegetable room 15) in the refrigeration temperature zone (the ice making room 16, the freezing room 17, The middle part 492 and the lower end part 493 located in the vicinity of the small freezer compartment are set thicker. The heat insulating member 49 is covered with a cover 50 as shown in FIG. The cover 50 is made of, for example, plastic, and is formed in a crank shape as a whole along the outer shape of the heat insulating member 49. Further, in this case, as shown in FIGS. 1 and 5, the suction pipes 46 and 47 are disposed thinner than the cooler 30, and the refrigeration cold air supply duct 36 and the front surface of the cover 50, that is, the surface on the storage chamber side, It is set to be almost the same position.

  According to the configuration of the first embodiment described above, the following operational effects can be obtained. That is, the suction pipes 46 and 47 constituting a part of the refrigeration cycle 29 are provided in each storage room, that is, a storage room in the refrigeration temperature zone (the refrigeration room 14 and the vegetable room 15) and a storage room in the freezing temperature zone (the ice making room 16, freezing). In the back portion of the chamber 17 and the small freezer compartment), the cool air supply ducts 36 and 39 are located on the side. According to this, even in the configuration in which the suction pipes 46 and 47 are provided in the heat insulating box 11, the thickness direction can be reduced. Therefore, a large volume of each storage chamber can be secured, and a decrease in the capacity of each storage chamber due to the arrangement of the suction pipes 46 and 47 can be suppressed.

  Further, the suction pipes 46 and 47 are arranged on the back side of a storage room (refrigeration room 14 and vegetable room 15) in a refrigeration temperature zone suitable for temperature, and have a length sufficient for heat exchange with the capillary tubes 43 and 44. Is secured. According to this, it is possible to prevent a temperature drop in the vicinity of the outlets of the suction pipes 46 and 47 that have exchanged heat with the capillary tubes 43 and 44 as much as possible, and heat exchange can be performed efficiently.

  Of the suction pipes 46 and 47, the vicinity of each storage room, that is, a storage room in the refrigeration temperature zone (the refrigeration room 14, the vegetable room 15) and a storage room in the freezing temperature zone (the ice making room 16, the freezing room 17, and the small freezing room). A heat insulating member 49 is interposed between each of the storage chambers and the suction pipes 46, 47 in the portion passing through. According to this, the suction pipes 46 and 47 are prevented from being cooled by the cold air of each storage chamber as much as possible, and as a result, the heat exchange efficiency with the capillary tubes 43 and 44 is improved.

  In addition, the heat insulating member 49 has a freezing temperature zone storage room (ice making room 16, freezing room 17, small freezing room) as compared to the upper end portion 491 passing through the vicinity of the freezing temperature zone storage room (refrigeration room 14, vegetable room 15). ) And the lower end 493 are formed thicker. According to this, the heat insulating member 49 can more effectively prevent the suction pipes 46 and 47 from being cooled by the cold air in the freezing temperature zone storage room (the ice making room 16, the freezing room 17, and the small freezing room). . Therefore, the suction pipes 46 and 47 can exchange heat with the capillary tubes 43 and 44 more effectively.

  Further, the suction pipes 46 and 47 are arranged on the inner back surface of the heat insulating box 11, that is, the back surface of each storage chamber, and the vacuum heat insulating material 13 is arranged inside the back wall so as to cover the entire back surface of the heat insulating box 11. did. Therefore, the vacuum heat insulating material 13 covers the entire back side of the coolers 30 and 31, the cold air supply ducts 36 and 39, and the suction pipes 46 and 47. According to this, the entire back side of the coolers 30 and 31 and the cold air supply ducts 36 and 39 can be effectively insulated by the vacuum heat insulating material 13 which has better heat insulating performance than the foam heat insulating material 12, and as a result, The heat insulation box 11 can be made more excellent in heat insulation performance.

(Second embodiment)
A second embodiment will be described with reference to FIGS. 6 and 7. This second embodiment is different from the first embodiment in the arrangement of the refrigeration side suction pipe 51 connected to the refrigeration cooler 30 and the refrigeration side suction pipe 52 connected to the refrigeration cooler 31.
Specifically, the refrigeration-side suction pipe 51 extends from the refrigeration cooler 30 to the left (right in FIG. 6) of the refrigeration cooler 30, and then bends upward. In this case, the coil-like winding is wound a plurality of times so as to be folded up and down on the upper left side (right side in FIG. 6) of the refrigeration cold air supply duct 36 in this case. A portion 511 is formed. Thereafter, it extends straight down into the machine chamber 32 and is connected to the compressor 33.

Similarly, the refrigeration side suction pipe 52 exits from the refrigeration cooler 31, extends to the left of the refrigeration cooler 31 (rightward in FIG. 6), and then bends upward. Then, after extending upward in parallel with the left side (right side in FIG. 3) of the refrigeration side suction pipe 46, the refrigeration side suction pipe 51 is wound several times in this case so as to be folded up and down at substantially the same height as the refrigeration side suction pipe 51. Thus, a coiled winding portion 521 that overlaps in the left-right direction is formed. Thereafter, it extends straight down into the machine chamber 32 and is connected to the compressor 33.
In the suction pipes 51 and 52 arranged in this way, as shown in FIG. 7, a heat insulating member 53 is interposed on each storage chamber side. In the heat insulating member 53, the upper end 531 that covers the winding portions 511 and 521 of the suction pipes 51 and 52 is thicker than the lower end portion 532. A cover 54 is provided so as to cover the heat insulating member 53.

  According to this configuration, the suction pipes 51 and 52 are formed with the winding portions 511 and 521, thereby ensuring a sufficient length for heat exchange with the capillary tubes 43 and 44. 36 can be arranged in a small space on the side. Therefore, the suction pipes 51 and 52 do not press the volume of each storage chamber, and therefore, it is possible to suppress a decrease in the capacity of each storage chamber. Moreover, since the suction pipes 51 and 52 are collectively arranged on the sides of the coolers 30 and 31 and the cold air supply ducts 36 and 39, the suction pipes 51 and 52 are configured to be easily assembled.

(Third embodiment)
As shown in FIG. 8, the third embodiment is different from the above-described embodiments in that the cooler for refrigeration and the freezer is configured by one cooler 55. In this case, like the other embodiments, the upper part of the heat insulating partition wall 24 is a storage room in a refrigeration temperature zone, and the lower part is a storage room in a refrigeration temperature zone. A cooler 55 is disposed on the back surface of the storage room in the freezing temperature zone, and a blower fan 56 is disposed above the cooler 55. A refrigeration cold air supply duct 57 is provided so as to cover the storage chamber side of the cooler 55 and the blower fan 56. In addition, a refrigeration cold air supply duct 58 that communicates with the refrigeration cold air supply duct 57 is provided at the back of the storage room in the refrigeration temperature zone. The air cooled by the cooler 55 is supplied to each storage room through the refrigeration cold air supply duct 57 and the refrigeration cold air supply duct 58 by the air blowing action of the blower fan 56.

  The suction pipe 59 connected to the cooler 55 exits from the cooler 55, then extends to the left of the cooler 55 (rightward in FIG. 8), and then bends upward. The coil is wound a plurality of times so as to be folded up and down on the upper left side (right side in FIG. 8) of the refrigeration cool air supply duct 57 to form a coil-shaped winding part 591 that overlaps in the front-rear direction. To do. Thereafter, it extends straight down into the machine chamber 32 and is connected to the compressor 33.

  In such a third embodiment, in the configuration in which the cooler for refrigeration and the refrigerator for freezing are shared by one cooler 55, the suction pipe 59 is wound around the side of the cold air supply duct 58 for refrigeration. Yes. According to this, the suction pipe 59 is arranged at a temperature suitable for heat exchange with a capillary tube (not shown) while suppressing a decrease in capacity without pressing a storage room in a refrigerated temperature zone. Can do.

(Other embodiments)
In addition, in each said embodiment, although it was set as the structure provided in the back wall inside the heat insulation box 11, not only this but you may provide in a right-and-left side wall, a ceiling part, a bottom part, etc.
Moreover, in each said embodiment, the heat insulation member which covers a suction pipe is good also as a structure provided only in the storage chamber vicinity of a freezing temperature zone.
Furthermore, the positional relationship between the cooler, the cool air supply duct, and the suction pipe may be a configuration in which the arrangement of the above embodiments is reversed left and right.

  As mentioned above, according to the refrigerator of each said embodiment, the suction pipe is located in the side of the cold air supply duct, and is provided. According to this, even in the configuration in which the suction pipe is provided in the storage chamber, the thickness direction of the arrangement of the cooler and the suction pipe can be reduced. Thereby, the capacity | capacitance fall of the storage chamber by arrangement | positioning of a suction pipe can be suppressed, and also the suction pipe can be arrange | positioned in the temperature suitable position in a refrigerator main body.

  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.

  In the drawings, 10 is a refrigerator main body, 13 is a vacuum heat insulating material, 14 is a refrigeration room (storage room in a refrigeration temperature zone), 15 is a vegetable room (storage room in a refrigeration temperature zone), and 16 is an ice making room (storage in a refrigeration temperature zone). Chamber), 17 is a freezer room (storage room in a freezing temperature zone), 29 is a refrigeration cycle, 30 is a refrigeration cooler (cooler), 31 is a refrigeration cooler (cooler), 33 is a compressor, 36, Reference numerals 51 and 58 denote refrigerated cold air supply ducts (cold air supply ducts), 39 denotes refrigeration cold air supply ducts (cold air supply ducts), 46, 52, and 57 denote refrigeration side suction pipes (suction pipes), and 47 denotes a refrigeration side suction pipe. (Suction pipe), 49 and 53 are heat insulation members, 55 is a cooler, and 59 is a suction pipe.

Claims (6)

A refrigerator body having a storage room;
A refrigeration cycle that is built into the refrigerator body and includes a cooler and a suction pipe that returns the refrigerant from the cooler to the compressor;
A cold air supply duct that is provided on the back surface of the storage chamber and supplies cold air from the cooler to the storage chamber; and
The suction pipe is provided at a side of the cold air supply duct ,
The storage room is a storage room in a refrigeration temperature zone and a storage room in a freezing temperature zone,
The refrigerator characterized by the heat insulating member being interposed between the said suction pipe and each said storage chamber .   The refrigerator according to claim 1, wherein the cooler is disposed in the cold air supply duct, and the suction pipe is disposed on a side of the cooler.   The refrigerator according to claim 1 or 2, wherein the suction pipe has a winding portion that is positioned on a side of the cold air supply duct and is wound so as to be folded up and down. The thickness of the heat insulating member is thicker in a portion located in the vicinity of the storage chamber in the refrigeration temperature zone than in a portion located in the vicinity of the storage chamber in the refrigeration temperature zone. The refrigerator as described in any one of 1-3. The refrigerator according to any one of claims 1 to 4, wherein a vacuum heat insulating material is disposed behind the cold air supply duct and the suction pipe . The refrigerator according to claim 5, wherein the vacuum heat insulating material is disposed so as to cover the entire back side of the cooler and the cold air supply duct .

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