JP5514037B2 - refrigerator - Google Patents

Description

  Embodiments of the present invention relate to a refrigerator.

  Conventionally, in a refrigerator, a machine room is provided at the lower back of the refrigerator body in which a heat insulating material is filled in a heat insulation space formed between an outer box and an inner box, and in this machine room, a refrigeration cycle for circulating a refrigerant is provided. A compressor, a condenser, a flow path switching valve, various pipes that connect the compressor and the condenser, and the inside of the cabinet, as well as a number of device parts such as an evaporating dish, an air cooling fan, and electrical parts are housed and arranged.

  A refrigerant pipe for flowing a high-temperature refrigerant discharged from the compressor is connected to the compressor. The refrigerant pipe is disposed so as to be immersed in the defrosted water stored in the evaporating dish, and then connected to the inlet pipe of the condenser. The refrigerant pipe connected to the outlet pipe of the condenser enters the heat insulating space of the refrigerator main body from the outer box bottom plate constituting the refrigerator main body, and is disposed along the heat insulating space side of the outer box rear plate.

  In the refrigerator having such a configuration, the refrigerant pipe vibrates due to vibration generated by driving the compressor or pulsation of the pressure of the refrigerant discharged from the compressor. Therefore, the refrigerant pipe is fixed to the refrigerator main body with a fixture. (See, for example, Patent Documents 1 and 2 below).

JP 2002-81851 A JP 2000-346530 A

  However, in order to efficiently evaporate the defrost water stored in the evaporating dish by the heat of the refrigerant flowing through the refrigerant pipe, the refrigerant pipe is preferably disposed as long as possible in the machine room. If an attempt is made to dispose the refrigerant pipe in the machine room while securing a gap so as not to interfere with each other, it becomes difficult to efficiently dispose the refrigerant pipe in the machine room.

  Then, an object of this invention is to provide the refrigerator which can arrange | position a refrigerant | coolant pipe efficiently in a machine room, ensuring a space | interval so that a refrigerant | coolant pipe and surrounding components may not interfere.

  A refrigerator according to an embodiment of the present invention includes a refrigerator body in which a heat insulating material formed between an outer box and an inner box is filled with a heat insulating material, a machine room formed in the refrigerator body, and a machine room. A compressor and a condenser provided; and a refrigerant pipe through which the refrigerant discharged from the compressor flows. The refrigerant pipe includes a first pipe disposed on an outer side of the outer case rear plate and the outer case rear plate. And a second pipe disposed on the heat insulating space side, wherein the first pipe and the second pipe are fixed to the outer box rear plate by one fixing tool.

It is sectional drawing of the refrigerator which concerns on one Embodiment of this invention. It is a figure which shows the refrigerating cycle of the refrigerator of FIG. It is a perspective view of the machine room part of the refrigerator shown in FIG. It is a perspective view which expands and shows the principal part of FIG. It is AA sectional drawing of FIG. It is a perspective view of a fixing tool. It is BB sectional drawing of FIG. It is CC sectional drawing of FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the refrigerator 10 according to an embodiment of the present invention uses a foam heat insulating material in a heat insulating space 12 c formed between an outer box 12 a forming an outer shell and an inner box 12 b forming a storage space. The refrigerator main body 12 which consists of the filled heat insulation box is provided, and the storage space is divided into the upper refrigerating space 20 and the lower freezing space 40 by the heat insulation partition wall 14.

  The refrigerated space 20 is further partitioned vertically by a partition 21, a refrigerated chamber 22 provided with a plurality of stages of mounting shelves is provided in the upper space, and a vegetable 26 in which the containers 26 provided in the upper and lower stages are arranged in the lower space. A chamber 24 is provided.

  The opening of the refrigerating room 22 is closed by a refrigerating room door 23 pivotally supported by hinges provided above and below one side of the refrigerator body 12. The opening of the vegetable compartment 24 is closed by a drawer-type vegetable compartment door 25. A pair of left and right support frames for holding the container 26 are fixed to the back side of the vegetable compartment door 25, and the container 26 is pulled out of the cabinet as the door is opened.

  An ice making room (not shown) equipped with an automatic ice making device and a first freezing room 44 are provided on the left and right sides of the freezing space 40 disposed below the vegetable room 24 via the heat insulating partition wall 14. Is provided with a second freezer compartment 46.

  The ice making chamber, the first freezing chamber 44, and the second freezing chamber 46 are also closed by the drawer-type doors 45 and 47, and the left and right pairs fixed to the back side of the doors 45 and 47, like the vegetable chamber 24. The storage container is held by the support frame, and the storage container is pulled out of the storage as the door is opened.

  And in the rear part of the refrigeration space 20, the refrigeration cooler 52 which cools the air in the refrigeration space 20, and the refrigeration fan which ventilates the cold air cooled with the refrigeration cooler 52 to the refrigerator compartment 22 and the vegetable compartment 24 53 is provided. In addition, at the rear of the freezing space 40, a freezing cooler 54 that cools the air in the freezing space 40, and the cold air cooled by the freezing cooler 54 is supplied to the ice making room, the first freezing room 44, and the second freezing room. A freezing fan 55 for blowing air is provided. The refrigeration cooler 52 and the refrigeration cooler 54 are cooled by the refrigerant supplied from the compressor 51 housed in the machine room 30 provided at the lower back of the refrigerator main body 12.

  As shown in FIG. 2, the refrigeration cycle 50 of the refrigerator 10 includes a compressor 51 that discharges a high-temperature and high-pressure gaseous refrigerant, and a condenser 56 that receives the gaseous refrigerant discharged from the compressor 51 and liquefies heat. And a switching valve 57 provided on the outlet side of the condenser 56 for switching the refrigerant flow path, a refrigeration cooler 52 and a refrigeration cooler 54, and refrigeration as a constricting means for the coolers 52 and 54 A decompression device 58, a decompression decompression device 59, and a check valve 60 are provided. These are connected by a refrigerant pipe such as a connection pipe 61, a heat radiating pipe 62, and a suction pipe 65, and the refrigerant discharged from the compressor 51 is circulated. .

  Specifically, the outlet pipe 51a of the compressor 51 and the inlet pipe 56b of the condenser 56 are connected by a connection pipe 61, and the outlet pipe 56a of the condenser 56 and the inlet of the switching valve 57 are connected by a heat radiating pipe 62. The compressor 51, the condenser 56, and the switching valve 57 are connected in series. A refrigeration decompression device 58 and a refrigeration cooler 52 are connected in series to one outlet of the switching valve 57, and a refrigeration decompression device 59 and a refrigeration cooler 54 are connected to the other outlet of the switching valve 57. A check valve 60 is connected in series. A suction pipe 65 that joins the pipe connected to the outlet side of the check valve 60 and the pipe connected to the outlet side of the refrigeration evaporator 5 is connected to the inlet pipe 51 b of the compressor 51.

  As shown in FIGS. 1 and 3 to 5, on the rear part of the bottom plate (outer box bottom plate) 12 a 1 of the outer box 12 a of the refrigerator main body 12, there is an inclined surface 31 a that increases upward as it goes rearward, and this inclined surface 31 a. A horizontal surface 31b extending horizontally from the rear end of the refrigerator main body 12 is provided, and thereby a stepped portion 31 projecting from the second freezer compartment 46 is provided over substantially the entire width of the refrigerator.

  A machine room 30 is formed below the step part 31, and a comp table 32 is provided at the bottom of the machine room 30 over the machine room width direction. A compressor 51 is disposed on one side in the machine room width direction on the compressor base 32 via a cushion body, and the cooling fan 33, the condenser 56, and defrost water are evaporated on the other side. An evaporating dish 34 and the like are provided. The rear surface of the machine room 30 is covered with a rear grill 39 attached to a rear plate (outer box rear plate) 12a2 of the outer box 12a (see FIG. 1).

  As shown in FIG. 5, the cooling fan 33 is mounted on a fan case 35 disposed at a predetermined distance from an inclined surface 31 a provided on the outer box bottom plate 12 a 1 that partitions the front surface of the machine room 30 in the step portion 31. The cooling fan 33 is attached so that the axial flow of the cooling fan 33 is directed from the front to the rear of the machine room 30.

  Between the fan case 35 to which the cooling fan 33 is attached and the inclined surface 31a of the outer box bottom plate 12a1, a duct forming plate 36 is provided substantially in parallel along the inclined surface 31a. The duct forming plate 36 has a lower end fixed to the comp base 32, an upper end terminating in front of the cooling fan 33, and an intake duct 37 formed between the inclined surface 31a.

  The lower end portion of the intake duct 37 communicates with an intake port 38 formed in the compressor base 32, and the outside air sucked from the intake port 38 with the operation of the cooling fan 33 is cooled from the front through the intake duct 37. It is sucked into the fan 33 and blows out toward the rear of the machine room 30.

  A condenser 56 is disposed in the intake duct 37 with its upper end opposed to the cooling fan 33, and the condenser 56 is cooled by heat exchange with the outside air flowing through the intake duct 37 sucked from the intake port 38. The

  An evaporating dish 34 for storing defrosted water from the refrigeration cooler 52 and the refrigeration cooler 54 is disposed on the comp table 32 from the position below the cooling fan 33 to the rear of the machine room 30. Inside the evaporating dish 34, a part of the connection pipe 61 connected to the outlet pipe 51 a of the compressor 51 is bent and disposed so as to be immersed in defrosted water stored in the evaporating dish 34. The defrost water is evaporated by the heat of the refrigerant flowing in the connection pipe 61.

  Further, the connection pipe 61 coming out from the inside of the evaporating dish 34 has a folded portion 61a that extends upward at the rear of the cooling fan 33, is folded downward from above and protrudes upward. A first connection portion 63 to which the inlet pipe 56b of the condenser 56 is connected by brazing or the like is provided on the downstream side of the folded portion 61a.

  The inlet pipe 56 b of the condenser 56 is a pipe connected to the inlet portion of the condenser 56, extends in the front-rear direction along the lower surface of the outer box bottom plate 12 a 1, and the rear end portion is bent upward to be connected to the connection pipe 61. It connects to the 1st connection part 63 provided in the folding | returning part 61a.

  The outlet pipe 56a connected to the outlet portion of the condenser 56 extends along the lower surface of the outer box bottom plate 12a1 toward the rear of the machine room 30 to the rear of the cooling fan 33, and the rear end portion is bent downward. The second connection portion 64 of the heat radiating pipe 62 is connected by brazing or the like.

  The second connection portion 64 to which the outlet pipe 56a of the condenser 56 is connected is provided in a folded portion 62a that is folded upward from below and protrudes downward in the heat radiating pipe 62.

  The heat radiating pipe 62 extending upward from the folded portion 62a penetrates the outer box bottom plate 12a1 and enters a heat insulating space 12c formed between the outer box 12a and the inner box 12b. The heat radiating pipe 62 that has entered the heat insulating space 12c is arranged upward along the inner side of the outer box rear plate 12a2 (that is, the heat insulating space side), and then the outer box rear plate 12a2, the outer box side plate, and the like. It is arranged meandering up and down along the heat insulating space side of the box 12a.

  The heat radiating pipe 62 is disposed along the heat insulating space side of the outer box 12a, passes through the outer box bottom plate 12a1, returns to the machine room 30, and is connected to the inlet side of the switching valve 57. As described above, the heat radiating pipe 62 disposed on the heat insulating space side of the outer box 12a radiates and condenses (cools) the refrigerant flowing through the heat radiating pipe 62, and prevents condensation on the outer surface of the outer box 12a.

  In the refrigerator 10 having the above-described configuration, the inlet pipe 56b extending from the condenser 56 to connect the condenser 56 disposed in front of the fan case 35 to the connection pipe 61 and the heat radiating pipe 62 disposed in the rear of the fan case 35. The outlet pipe 56 a extends to the rear of the fan case 35 through a through hole (not shown) provided in the fan case 35. At that time, since the inlet pipe 56b and the outlet pipe 56a of the condenser 56 are routed from the front to the rear of the fan case 35 through one through hole, the folded portion 61a of the connection pipe 61 and the folded portion 62a of the heat radiating pipe 62 are connected to the refrigerator. The 1st connection part 63 and the 2nd connection part 64 which were arrange | positioned adjacent to the width direction and were provided in the folding | returning part 61a and the folding | returning part 62a are arrange | positioned adjacent to the refrigerator width direction.

  Then, the folded portion 61a of the connection pipe 61 disposed outside the outer box rear plate 12a2 and the folded portion 62a of the heat radiating pipe 62 extend upward from the outer box bottom plate 12a1 to enter the heat insulating space 12c to enter the outer box rear plate. The heat radiating pipe 62 disposed on the heat insulating space side of 12a2 is fixed to the outer box rear plate 12a2 by one fixing tool 80.

  Specifically, as shown in FIGS. 6 to 8, the fixture 80 includes an outer plate portion 82 to which the folded portion 61 a of the connection pipe 61 is fixed, an inner plate portion 84 to which the heat radiating pipe 62 is fixed, The hinge part 86 which connects the board part 82 and the inner board part 84 so that rotation is possible, and the latching | locking part 88 which protrudes toward the front from the outer board part 82 are provided.

  In the fixing device 80, the locking portion 88 is inserted into the mounting hole 13 provided in the outer box rear plate 12a2, and the plate surface of the outer plate portion 82 provided with the locking portion 88 adheres to the outside of the outer box rear plate 12a2. Then, the hinged portion 86 is attached to the outer case rear plate 12a2 so that the inner plate portion 84 is bent at the lower end portion of the outer case rear plate 12a2 and adheres to the heat insulating space side of the outer case rear plate 12a2.

  The outer plate part 82 is fixed to the reinforcing angle 15 provided on the heat insulating space side of the outer box 12a together with the outer box rear plate 12a2 by screws 89. A clip 90 is fastened together with the outer plate portion 82 to the screw 89, and the folded portion 61 a is held by the clip 90, thereby being fixed to the outside of the outer box rear plate 12 a 2 via the outer plate portion 82. .

  The inner plate portion 84 is locked to the locking portion 88 that protrudes from the outside of the outer box rear plate 12a2 to the heat insulating space 12c through the mounting hole 13, so that the outer plate portion 82 and the inner plate portion 84 are outside. In a state where the box rear plate 12a2 is sandwiched, the fixture 80 is fixed to the outer box rear plate 12a2. A holding groove 92 extending in the vertical direction is formed in the inner plate portion 84 so as to be recessed toward the outer box rear plate 12a2. By inserting the heat radiating pipe 62 into the holding groove 92, it is fixed to the heat insulating space side of the outer box rear plate 12 a 2 via the inner plate portion 84.

  As described above, in the refrigerator 10 of the present embodiment, the connection pipe 61 and the heat radiating pipe 62 can be arranged and fixed on the outside of the outer box rear plate 12a2 and the heat insulating space side by one fixing tool 80. The refrigerant pipe can be efficiently disposed in the machine room 30 while ensuring a gap so that the pipe and surrounding parts do not interfere with each other.

  Moreover, the fixture 80 has a hinge portion so that the outer plate portion 82 disposed on the outer side of the outer box rear plate 12a2 and the inner plate portion 84 disposed on the heat insulating space side of the outer box rear plate 12a2 are rotatable. The outer box rear plate 12a2 is bent at the end of the outer box rear plate 12a2, and is sandwiched between the outer box rear plates 12a2. Therefore, the fixture 80 can be attached to the outer box rear plate 12a2 without deforming the outer box rear plate 12a2 into a special shape, and the assembly workability can be improved.

  Moreover, in the refrigerator 10 of this embodiment, the 1st connection part 63 which connects the connection pipe 61 and the inlet pipe 56b of the condenser 56, and the 2nd connection which connects the thermal radiation pipe 62 and the outlet pipe 56a of the condenser 56 The part 64 is arranged close to the refrigerator width direction, and pipe connection work is easy.

Further, in the refrigerator 10 of the present embodiment, the outer plate 82 is screwed to the reinforcing angle 15 provided on the heat insulating space side of the outer box 12a together with the outer box rear plate 12a2 by screws 89.
The fixture 80 can be reliably fixed to the outer box 12a while suppressing an increase in the number of parts.

DESCRIPTION OF SYMBOLS 10 ... Refrigerator 12 ... Refrigerator main body 12a ... Outer box 12a ... Outer box bottom plate 12a ... Outer box rear plate 12b ... Inner box 12c ... Heat insulation space 13 ... Mounting hole 15 ... Reinforcement angle 20 ... Refrigerated space 22 ... Refrigerated room 24 ... Vegetable room DESCRIPTION OF SYMBOLS 31 ... Step part 31a ... Inclined surface 31b ... Horizontal surface 32 ... Comp stand 33 ... Cooling fan 34 ... Evaporating dish 35 ... Fan case 40 ... Freezing space 44 ... 1st freezing room 46 ... 2nd freezing room 50 ... Refrigerating cycle 51 ... Compression Machine 51a ... exit pipe 51b ... inlet pipe 52 ... refrigeration cooler 53 ... refrigeration fan 54 ... refrigeration cooler 55 ... refrigeration fan 56 ... condenser 56a ... exit pipe 56b ... inlet pipe 57 ... switch valve 61 ... connection Pipe 61a ... Turn-up portion 62 ... Radiation pipe 62a ... Turn-up portion 63 ... First connection portion 64 ... Second connection portion 80 ... Fixing device 82 ... Outer plate portion 84 ... Inner plate portion 86 The hinge portion 88 ... locking portion 89 ... Screw 90 ... clip 92 ... holding groove

Claims (5)

A refrigerator body filled with a heat insulating material in a heat insulating space formed between the outer box and the inner box, a machine room formed in the refrigerator body, a compressor and a condenser disposed in the machine room, A refrigerant pipe through which the refrigerant discharged from the compressor flows,
The refrigerant pipe has a first pipe arranged on the outer side of the outer box rear plate and a second pipe arranged on the heat insulating space side of the outer box rear plate,
The refrigerator, wherein the first pipe and the second pipe are fixed to the outer box rear plate by one fixing tool.   The refrigerator according to claim 1, wherein the fixture is bent at an end portion of the outer box rear plate and sandwiches the outer box rear plate.   The refrigerator according to claim 1 or 2, wherein a connecting portion that connects the first pipe and a different pipe is provided above the machine room. The first pipe is connected to an outlet pipe of the compressor and an inlet pipe of the condenser, and has a first folded portion that protrudes upward on the outer side of the outer casing rear plate, and the first folded portion includes A first connection for connecting the first pipe and the inlet pipe of the condenser is provided;
The second pipe is connected to an outlet pipe of the condenser, enters the heat insulating space from the outer box bottom plate, is disposed on the heat insulating space side of the outer box rear plate, and protrudes downward in the machine room. A second connection part that has a folded part and connects the second pipe and the outlet pipe of the condenser to the second folded part;
The refrigerator according to claim 3, wherein the first connection part and the second connection part are arranged close to each other in the refrigerator width direction.   The refrigerator according to any one of claims 1 to 4, wherein the fixing tool is fixed to a reinforcing angle provided in the outer box via the rear plate of the outer box.

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