JP3649966B2 - refrigerator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a refrigerator in which a machine room is formed in a lower part of a heat insulating box and a transport handle is attached to the front part thereof.
[0002]
[Prior art]
Conventionally, this kind of household refrigerator has been provided with a foam insulation material such as polyurethane foam between a steel plate outer box and a hard resin inner box as disclosed in, for example, JP-A-10-253232 (F25D23 / 00). It is comprised from the heat insulation box with which it filled with the foaming system, and the freezer compartment, the refrigerator compartment, the vegetable compartment, etc. are comprised by dividing this heat insulation box body (inside of a store | warehouse | chamber) into plurality. A cooler is installed behind the freezer compartment, and the cool air cooled by the cooler is circulated to each chamber to cool each to a predetermined temperature.
[0003]
A machine room is formed in the lower part of the heat insulation box, and a compressor, a condenser, and the like that constitute a refrigeration cycle together with the cooler are installed in the machine room. Furthermore, a carrying handle (grip member) is attached to the back of the horizontal plate located in the front of the machine room, and consideration has been given so that the carrying can be carried with the handle when the refrigerator is carried in.
[0004]
[Problems to be solved by the invention]
However, since the conventional carrying handle has a structure in which the top wall of the machine room is screwed to the top wall and the horizontal plate, there is a problem of strength in order to carry the heavy refrigerator. Arise.
[0005]
The present invention has been made to solve the conventional technical problems, and provides a refrigerator with improved carrying handle attachment strength.
[0006]
[Means for Solving the Problems]
The refrigerator of the present invention comprises a machine room at the lower part of the heat insulation box, and is provided with a frame horizontal plate attached to the front surface of the machine room. The refrigerator is formed on the frame horizontal plate and opened rearward. A carrying handle having an insertion portion, a mounting arm portion fixed to the bottom plate of the heat insulating box constituting the top surface of the machine room, and a grip portion inserted and fitted into the insertion portion and fixed to the frame horizontal plate. It is characterized by having.
[0007]
According to the present invention, in the refrigerator comprising the machine room in the lower part of the heat insulation box and having the frame horizontal plate attached to the front surface of the machine room, the insertion portion formed on the frame horizontal plate and opened rearward And a carrying handle having a mounting arm portion fixed to the bottom plate of the heat insulating box constituting the top surface of the machine room and a grip portion inserted and fitted into the insertion portion and fixed to the frame horizontal plate. Therefore, especially the mounting strength of the frame horizontal plate and the carrying handle is remarkably improved. In particular, since the attachment strength of the grip portion gripped during transportation is improved, it is possible to effectively reduce the occurrence of inconvenience such as breakage that occurs during transportation.
[0008]
Further, since the carrying handle is fixed between the bottom plate of the heat insulating box and the horizontal plate of the heat insulating box, it plays a role of so-called bracing and contributes to the improvement of the strength of the entire refrigerator.
[0009]
The refrigerator of the invention of claim 2 is characterized in that in the above, an opening is formed in the frame horizontal plate, an insertion portion is formed at the lower edge of the opening, and the rear surface of the grip portion is curved. .
[0010]
According to the second aspect of the present invention, in addition to the above, the insertion portion is formed at the lower edge of the opening formed in the frame horizontal plate so that the grip portion can be securely grasped by inserting a finger from this opening. Become. In particular, since the rear surface of the grip portion has a curved shape, the grip state is also good, and the workability during transportation is significantly improved.
[0011]
In the refrigerator according to the third aspect of the present invention, the evaporating dish is provided in the machine chamber, and the evaporating dish can be freely inserted into and removed from the opening of the horizontal plate of the frame. It is located on both sides.
[0012]
According to the invention of claim 3, in addition to the above, the evaporating dish provided in the machine room can be inserted into and removed from the machine room through the opening of the horizontal plate of the frame, and the attachment arm portions of the carrying handle are on both sides of the opening. Since it is located, the attachment arm portion of the carrying handle does not interfere with the insertion and removal of the evaporating dish.
[0013]
The refrigerator of the invention of claim 4 is provided with a handle portion protruding forward in the center of the front portion of the evaporating dish. The handle portion faces forward from the opening of the frame horizontal plate, and the evaporating dish other than the handle portion is provided. Is located behind the grip.
[0014]
According to the invention of claim 4, in addition to the above, a handle portion protruding forward is provided in the center of the front portion of the evaporating dish. The handle portion faces forward from the opening of the frame horizontal plate, and other than the handle portion. Since the evaporating dish is positioned behind the grip part, the evaporating dish can be inserted and pulled out by holding the handle part, and at the time of transportation, fingers are inserted into the opening from both sides of the handle part and transported. The grip part of the handle can be gripped.
[0015]
Particularly, since the grip portion is gripped in the vicinity of the mounting arm portion, the grip portion is transported with a position having the highest strength, which is extremely effective in terms of strength.
[0016]
In the refrigerator according to the fifth aspect of the present invention, an evaporating dish condenser for placing the evaporating dish is provided behind the carrying handle, and a predetermined gap is provided between the evaporating dish capacitor and the grip part of the carrying handle. The interval is configured, and the front edge of the evaporating dish condenser is folded.
[0017]
According to the invention of claim 5, in addition to the above, a predetermined interval is provided between the evaporating dish condenser on which the evaporating dish is placed and the grip part of the conveying handle. Sometimes it is possible to insert a finger from this interval and hold the grip part without hindrance. In particular, since the front edge of the evaporating dish capacitor has a folded shape, the risk of injury will be reduced even if the front edge of the evaporating dish capacitor is hit when inserting a finger.
[0018]
The refrigerator of the invention of claim 6 is characterized in that, in the above, the front edge of the evaporating dish condenser has a curved shape.
[0019]
According to the invention of claim 6, in addition to the above, since the leading edge of the evaporating dish capacitor has a curved shape, the evaporating dish capacitor is inserted when inserting a finger between the grip portion for carrying and the evaporating dish capacitor. Even if it hits the leading edge, it is possible to surely prevent inconvenience of injuries and to further improve safety during transportation.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a front view of a refrigerator 1 to which the present invention is applied, FIG. 2 is a longitudinal side view of the refrigerator 1, FIG. 3 is an exploded perspective view of a back plate 49 and a back heat insulating material 50 of the refrigerator compartment 11 of the refrigerator 1, and FIG. FIG. 5 is a plan sectional view of the partition wall 7 portion of the refrigerator 1, and FIG. 6 is a refrigerant circuit diagram of the refrigeration cycle of the refrigerator 1.
[0021]
The refrigerator 1 is composed of an outer box 2 made of a steel plate and a heat insulating box 6 having a front opening formed by filling a heat insulating material 4 such as foamed polyurethane in an in-situ foaming method between inner boxes 3 made of hard resin such as ABS. ing. The inside of the heat insulating box 6 is partitioned vertically by a partition wall 7 formed of a heat insulating wall integrally formed with the heat insulating box 6, and the inside of the heat insulating box 6 above the partition wall 7 is an upper partition. The member 8 is divided vertically.
[0022]
The upper partition member 8 is provided with a refrigerator compartment 11 and the upper partition member 8 and the partition wall 7 are provided with a vegetable compartment 12. Further, the opening edge of the heat insulating box 6 below the partition wall 7 is divided vertically by a lower partition member 9, and the lower side of the lower partition member 9 is a freezer compartment 13. Further, the partition wall 7 and the lower partition member 9 are further divided into left and right sides by a heat insulating wall 30 (FIG. 5), and the left side is an ice making chamber 10 and the right side is a select chamber 15 (FIG. 5). In FIG. 5, the hatching of the partition wall 7 is omitted for explanation.
[0023]
The front opening of the refrigerator compartment 11 is closed openably and closably by a rotatable heat insulating door 14, and the freezer compartment 13 and the vegetable compartment 12 are provided with drawer-type heat insulating doors 16 provided with containers 16 A and 17 A having top openings. 17 are each opened and closed freely. Further, the ice making chamber 10 is also opened and closed by a drawer-type heat insulating door 18 provided with a container 18A having an upper opening, and the select chamber 15 is also opened and closed by a similar drawer-type heat insulating door 19 (FIG. 1). Has been. Reference numeral 20 denotes a control panel provided at the lower front portion of the door 14.
[0024]
An automatic ice making machine 21 is installed in the upper part of the ice making chamber 10. Further, the interior of the vegetable compartment 12 is divided forward and backward by a partition plate 22 and a cooler front plate 23, and a cooling chamber 24 is formed on the rear side of the cooler front plate 23, and the refrigerator compartment 24 is refrigerated. A room cooler 26 is provided vertically. A refrigerating room blower 27 is provided above the refrigerating room cooler 26, and a defrost heater 28 is provided below the refrigerating room cooler 26. A drain receiver 29 is formed below the defrost heater 28.
[0025]
Further, from the back of the ice making chamber 10 and the select chamber 15 to the upper back of the freezing chamber 13 is partitioned forward and backward by a partition plate 32 and a cooler front plate 33, and a cooling chamber 34 is formed behind the cooler front plate 33. In this cooling chamber 34, a freezer cooler 36 is provided vertically. A freezer blower 37 is provided above the freezer cooler 36, and a defrost heater 38 is provided below the freezer cooler 36. A drain receiver 39 is formed below the defrost heater 38.
[0026]
An ice making chamber discharge port, a select chamber discharge port, and the like are formed in the upper portion of the partition plate 32, a freezer chamber discharge port 13A is formed in the center portion, and a freezer compartment suction port 13B is formed in the lower portion of the partition plate 32. Is formed. Note that a motor damper (not shown) that opens and closes the flow path based on the temperature of the select chamber 15 is attached to the select chamber discharge port (not shown).
[0027]
On the other hand, a vegetable room suction port 12A is formed in the lower part of the partition plate 22 at the back of the vegetable room 12, and the upper end of the space between the partition plate 22 and the cooler front plate 23 communicates with a refrigeration room rear duct 47 described later. . Furthermore, the vegetable compartment discharge port 12B for blowing cold air to the lower side of the upper partition member 8 is formed in the upper part of the partition plate 22.
[0028]
On the other hand, a back plate 49 and a back heat insulating material 50 are attached to the back side of the back of the inner box 3 at a distance from the back of the inner box 3 at the back of the refrigerator compartment 11. The refrigerator compartment rear duct 47 extending is formed. A refrigerator discharge port 11 </ b> A is formed on the left and right sides of the back plate 49 and penetrates the back heat insulator 50 and communicates with the refrigerator back duct 47. Further, a plurality of shelves 51 are built in the refrigerator compartment 11.
[0029]
In addition, on the left and right sides of the back plate 49, recessed portions 31 and 31 are formed on both sides of the back heat insulating material 50 and extend in the vertical direction, and an illumination lamp 59 is attached in each of the recessed portions 31 and 31. The front surfaces of the recesses 31 are closed by a light-transmitting shade (not shown) (note that the left side illumination lamp 59 is seen through in FIG. 2).
[0030]
Furthermore, a partition plate 42 is attached to the lower part of the refrigerator compartment 11 at a predetermined interval above the upper partition member 8, and an openable / closable lid 43 is rotatable on the front side of the partition plate 42. A built-in chamber 44 is formed in a space that is suspended and surrounded by these. A retractable container 48 is accommodated in the built-in chamber 44. Reference numeral 44A denotes a built-in chamber discharge port formed in the back plate 49, which communicates with the lower part of the refrigerator compartment back duct 47.
[0031]
The upper partition member 8 is formed with a refrigerator compartment suction port 51, and the refrigerator compartment inlet port 51 communicates with the vegetable compartment 12. Furthermore, a water supply tank (not shown) for supplying water to the automatic ice making machine 21 is stored in the built-in chamber 44.
[0032]
The upper surface of the container 17A stored in the vegetable compartment 12 is closed with a lid 53, and the cold air returning from the refrigerator compartment 11 is circulated around the container 17A through the refrigerator compartment suction port 51, It is returned to the cooling chamber 24 from the vegetable chamber inlet 12A. The return cold air from the ice making chamber 10 and the freezing chamber 13 is returned to the cooling chamber 34 from the freezer inlet 13B. The select chamber 15 is returned to the cooling chamber 34 from a select chamber suction port (not shown).
[0033]
Here, a recessed portion 54 that is recessed in the vertical direction is formed in the front central portion of the rear heat insulating material 50, and a suction port 56 is attached to the rear plate 49 at a position corresponding to the lower portion of the recessed portion 54. ing. An air curtain rear duct 57 is formed in the recessed portion 54 closed by the rear plate 49, and a temperature compensating electric heater H is attached therein. Reference numeral 55 denotes a cover attached to the suction port 56.
[0034]
An air curtain blower 68 provided with a turbo fan 67 that sucks cold air from the axial direction (front) and blows it out in the radial direction is disposed in the air curtain rear duct 57 located behind the suction port 56. A top plate 63 is attached to the top surface of the refrigerator compartment 11, and an air curtain top surface duct 64 is formed in the top surface plate 63 in the front-rear direction. The rear end of the air curtain top face duct 64 communicates with the upper end of the air curtain rear face duct 57, and the front end of the air curtain top face duct 64 is located near the front opening of the refrigerator compartment 11. A plurality of air outlets 66 are arranged side by side (note that the blower 68 is seen through in FIG. 2).
[0035]
On the other hand, a machine room 41 is formed in the lower part of the heat insulation box 6, and the refrigerant circuit of the refrigeration cycle of FIG. The compressor 69 etc. which comprise are installed. In the refrigerant circuit diagram of FIG. 6, 71 is a condensing device, 72 is a motor-driven three-way valve, and 73 and 74 are capillary tubes. The capillary tubes 73 and 74 are soldered so as to exchange heat with a refrigerant suction pipe 69S described later.
[0036]
The refrigerant discharge pipe 69D of the compressor 69 is connected to the condensing device 71, and the outlet portion 71A of the condensing device 71 is connected to the three-way valve 72 via the dryer 70. One outlet of the three-way valve 72 is connected to the inlet of the refrigerating room cooler 26 via the capillary tube 73, and the outlet of the refrigerating room cooler 26 is connected to the inlet of the freezing room cooler 36.
[0037]
The other outlet of the three-way valve 72 is connected to the inlet of the freezer cooler 36 via the capillary tube 74, and the outlet of the freezer cooler 36 is connected to the refrigerant suction pipe 69S of the compressor 69. Yes. The three-way valve 72 has a function of opening and closing the outlet so that the liquid refrigerant from the condensing device 71 flows selectively to the capillary tube 73 or the capillary tube 74, and closes both outlets to completely close the flow path. It also has a function and a function of opening both outlets. Reference numeral 40 denotes a header serving as a refrigerant liquid reservoir connected between the freezer cooler 36 and the compressor 69.
[0038]
When the compressor 69 is operated by a control device (not shown), the high-temperature and high-pressure gas refrigerant discharged from the refrigerant discharge pipe 69D of the compressor 69 flows into the condensing device 71, dissipates heat, and is condensed and liquefied. Then, the refrigerant exiting the condenser 71 enters the three-way valve 72 through the dryer 70.
[0039]
When there is a cooling request from both a temperature sensor (not shown) that detects the temperature of the freezer compartment 13 and the refrigerator compartment 11, the control device opens the three-way valve 72 to the capillary tube 73 side. As a result, the refrigerant condensed and liquefied by the condensing device 71 is decompressed by the capillary tube 73, and then sequentially flows into the refrigerating room cooler 26 and the freezing room cooler 36, evaporates, and is cooled by both coolers. Demonstrate ability. When there is a cooling request from the temperature sensor in the freezer compartment 13, the control device opens the three-way valve 72 toward the capillary tube 74.
[0040]
As a result, the refrigerant condensed and liquefied by the condensing device 71 is decompressed by the capillary tube 74, then flows into the freezer cooler 36 and evaporates, and the freezer cooler 36 exhibits a cooling capacity. When there is no cooling request from the temperature sensors of both the freezer compartment 13 and the refrigerator compartment 11, the control device stops the compressor 69 (also stops the blowers 27 and 37) and closes both outlets of the three-way valve 72. , Completely close the flow path.
[0041]
When the freezer blower 37 is operated, the cool air in the cooling chamber 34 cooled by the freezer cooler 36 is discharged from the ice making chamber discharge port and the select chamber discharge port to the ice making chamber 10 and the select chamber 15. At the same time, it is discharged into the freezer compartment 13 from the freezer outlet 13A. And after circulating and cooling each room | chamber interior, cold air returns in the cooling chamber 34 from the said freezer compartment inlet 13B (solid line arrow in FIG. 2). Thereby, the freezer compartment 13 is maintained at a predetermined freezing temperature (about −20 ° C.).
[0042]
The temperature in the ice making chamber 10 is also set to the freezing temperature, and ice making is performed by the automatic ice making machine 21. In the select chamber 15, a control temperature can be selected in the range from the freezer compartment to the vegetable compartment, and the amount of cold air supplied from the select chamber outlet is controlled by the motor damper so as to be the selected temperature. The The motor damper is controlled by the controller based on a temperature sensor (not shown) that detects the temperature of the select chamber 15.
[0043]
On the other hand, when the refrigeration room blower 27 is operated, the cold air in the cooling chamber 24 cooled by the refrigeration room cooler 26 flows into the refrigeration room rear duct 47, and the refrigeration room discharge port 11A. The air is discharged from the chamber discharge port 44 </ b> A into the refrigerator compartment 11 and the built-in chamber 44, circulates inside and cools, and then flows into the refrigerator compartment suction port 51.
[0044]
The cold air flowing into the refrigerator compartment suction port 51 passes through the upper partition member 8, mixes with the cold air blown out from the vegetable compartment discharge port 12B, enters the vegetable compartment 12, circulates around the container 17A, and passes through the container 17A. After indirectly cooling, it is sucked in from the vegetable room suction port 12 </ b> A and returns to the cooling room 24. Thereby, the inside of the refrigerator compartment 11 is maintained at a refrigerator temperature (about + 3 ° C. to + 5 ° C.), and the vegetables in the container 17A are kept cold in a state where drying is prevented (solid arrow in FIG. 2).
[0045]
The control device performs ON / OFF control of the freezer compartment blower 37 based on the temperature of the freezer compartment 13 detected by the temperature sensor, and performs ON / OFF control of the refrigerator compartment fan 27 based on the temperature of the refrigerator compartment 11. However, when any one of the doors 14 and 17 is opened, the refrigerator room blower 27 is stopped, and when any one of the doors 16, 18 and 19 is opened, the freezer room blower 37. To stop. This suppresses cold air leakage from each chamber.
[0046]
Further, the control device stops the air curtain blower 68 when the door 14 of the refrigerator compartment 11 is closed and the temperature in the refrigerator compartment 11 is lower than a predetermined high temperature such as + 6 ° C. Yes. When the door 14 is opened, the control device operates the air curtain fan 68 and lights the illumination lamp 59.
[0047]
When the air curtain blower 68 is operated, cold air is sucked from the axial direction and blown in the radial direction, so that the cold air in the refrigerator compartment 11 is sucked from the suction port 56 through the cover 55 and is used for the air curtain. It is sucked into the blower 68. Then, it is blown out to the air curtain rear duct 57, rises there, enters the air curtain top duct 64, flows forward there, and is blown out from the blower outlet 66 to the opening of the lower refrigerator compartment 11. .
[0048]
As a result, a cold air curtain is formed over the entire area of the opening of the refrigerating chamber 11 as indicated by the dashed arrows in FIG. 2, so that the outside air trying to enter the refrigerating chamber 11 when the door 14 is opened. And the cold air which is going to leak from the inside of the refrigerator compartment 11 can be prevented as much as possible by the air curtain.
[0049]
Here, the control device accumulates the time during which the door 14 is opened, and when the door 14 is closed, the air curtain fan 68 is continuously operated for the same time as the accumulated time. Then stop. Thereby, after the door 14 is closed, the temperature rise and the temperature unevenness in the refrigerator compartment 11 generated while the door 14 is opened can be quickly reduced and made uniform. Furthermore, for example, when the temperature in the refrigerator compartment 11 rises to a high temperature such as + 6 ° C. or more due to, for example, a large amount of heat load, the control device closes the door 14 and further increases the accumulated time. Even after the elapse of time, the air curtain blower 68 is operated.
[0050]
Thereby, since the cold air in the refrigerator compartment 11 is stirred, the temperature recovery (decrease) in the refrigerator compartment 11 is speeded up. In addition, the air in the refrigerator compartment 11 is agitated by the operation of the air curtain blower 68 as described above, so that the temperature in the refrigerator compartment 11 becomes uniform. Moreover, since the cold air curtain is formed when the door 14 is opened, it can contribute to energy saving. Further, even when the door 14 is closed, when the temperature in the refrigerator compartment 11 rises to a predetermined value or more, the air curtain blower 68 is operated. It is possible to speed up the temperature recovery (decrease, especially the pocket inside the door 14) in the refrigerator compartment 11 by stirring the fan 68 for operation.
[0051]
Further, the control device integrates the operation time of the compressor 69, and when the total operation time reaches a predetermined time, the defrosting heaters 28 and 38 are heated. Thereby, the refrigerator 26 for refrigerator compartments and the refrigerator 36 for freezer compartments are heated, and the frost adhering to them is melt | dissolved. Drain water generated by melting frost is received by drain receivers 29 and 39 arranged on the lower side of each cooler.
[0052]
Next, the structure in the machine room 41 of the refrigerator 1 of this invention is demonstrated in detail with reference to FIGS. 7 is a vertical side view of the lower part of the refrigerator 1, FIG. 8 is a rear view of the lower part of the refrigerator 1, FIG. 9 is a plan view of the machine room 41 of the refrigerator 1, and FIG. 10 is an exploded perspective view of the refrigerator 1 in the machine room 41 part. 11 and 12 are enlarged longitudinal sectional side views of the refrigerator 1 in the front part of the machine room 41, and FIG. 13 is an enlarged front view of the lower part of the refrigerator 1. FIG.
[0053]
The bottom plate 6A of the heat insulating box 6 serving as the top surface of the machine room 41 has a staircase shape with a low front part and a high rear part, and the front surface, the bottom plate, and the rear surface of the machine room 41 are open. A compressor base 79 is attached to the rear portion of the bottom plate of the machine room 41 between the angle members 80, 80 of the left and right bottom plates, and the compressor 69 is installed on the right side when viewed from the front of the compressor base 79. ing.
[0054]
A kick plate 82 is mounted on the front side of the heat insulating box 6 across the left and right sides of the door 16 in front of the machine room 41. Between the kick plate 82 and the compressor base 79, a refrigeration cycle is provided. A plate-type evaporating dish condenser 83 constituting a part of the condensing device 71 is attached to the angle members 80 and 80 at the bottom of the machine chamber 41, and there is a gap between the bottom plate 6A and the installation floor surface. Are arranged. The evaporating dish 90 is placed on the evaporating dish capacitor 83 and is positioned between the evaporating dish capacitor 83 and the bottom plate 6A. In the figure, 95 and 95 are evaporating dish rails provided on both sides of the evaporating dish condenser 83 so as to be slidable forward and backward.
[0055]
The inside of the machine room 41 is partitioned into a condenser plate side 83 and a compressor base 79 side by a partition plate 84 located on the front side of the compressor 69, and a communication portion 86 is formed on the left side of the partition plate 84. Yes. Further, a fan partition plate 87 made of, for example, a synthetic resin is attached to the left side of the compressor 69, and an opening 87A is formed in the fan partition plate 87. The fan partition plate 87 is integrally formed with a storage portion 103 that is slanted to the front. The rear portion of the storage portion 103 opens to the left and right through the opening 87A, and the rear surface is rearward through the opening 103A. Open towards.
[0056]
Then, a machine room blower 88 is inserted into the storage portion 103 from the rear opening 103A and attached. The machine room blower 88 is a rectangular axial fan whose overall shape is substantially square, and has a configuration in which the motor part 88M is in the center and the fan part 88F is arranged around the fan part 88F. Further, the machine room blower 88 is inserted into the inner portion of the storage portion 103 and is positioned at the opening 87A, and as a whole, as shown in FIG. ing. Thereby, the upper surface 88A of the machine room blower 88 is inclined low toward the evaporating dish condenser 83 as viewed in the axial direction. Moreover, since the space | interval with the compressor stand 79 is comprised in the rear lower corner part of the fan partition plate 87 by such inclination arrangement | positioning, the refrigerant | coolant piping 75 of a refrigerating cycle can be penetrated using this.
[0057]
Also, a hook-like claw portion 87B is integrally formed at the rear portion of the fan partition plate 87, and the claw portion 87B is a rear surface of the machine room blower 88 in a state where the machine room blower 88 is housed in a predetermined position. Protrusively. Thereby, the blower 88 for machine rooms does not come out backward. When the machine room blower 88 is pulled backward from the storage portion 103, a unit cover 91 (to be described later) is first removed, and the claw portion 87B is deformed outward and then pulled backward.
[0058]
The machine room blower 88 is operated and sucks air from the communication part 86 side and blows it out to the compressor 69 side. The machine room blower 88 has a part of the condenser 71 on the air suction side. Is installed on the compressor stand 79. The main condenser 104 is, for example, a forced air-cooling type heat exchanger provided with a large number of small disk-shaped fins around the refrigerant pipe.
[0059]
The refrigerant discharge pipe 69D of the compressor 69 is located on the air blowing side of the machine room blower 88, and is bent in a direction substantially orthogonal to the flow of air blown from the condenser blower 88, and is reciprocated once. Has been. The refrigerant discharge pipe 69D may be bent more times.
[0060]
Further, the three-way valve 72 is located on the windward side of the main condenser 104 and is attached to the bottom plate 6A (inclined portion) of the heat insulating box 6, and further, the final outlet of the condenser 71 and the dryer located there. 70 is also arranged behind the three-way valve 72 on the windward side of the main condenser 104.
[0061]
The evaporating dish 90 has a handle portion 90A protruding forward at the center of the front edge, and a receiving portion 90B protruding toward the main condenser 104 is integrally formed on the left side of the rear edge. In addition, 90C and 90C are backlash prevention protrusions formed on the upper surfaces of both sides of the handle portion 90A, and 90D is a stopper formed to protrude from the lower edge of the handle portion 90A. Then, water sealing devices 107 and 108 are attached to the bottom plate 6A so as to correspond to the upper portion of the receiving portion 90B. The water sealing devices 107 and 108 are connected to the drain pipes 109 and 108 connected to the drain receivers 29 and 39, respectively. 111 is inserted.
[0062]
These water sealing devices 107 and 108 have a so-called trap structure for storing a part of drain water flowing down through the drain pipes 109 and 111 and sealing it, and as shown in FIG. Located on the front side. The drain pipes 109 and 111 are drawn out from the rear portion of the heat insulating box 6 and then drawn forward along the inclined surface 103A of the upper storage portion 103 of the machine room blower 88 as shown in FIG. The drain pipes 109 and 111 are inserted into the water sealing devices 107 and 108, and therefore, the drain pipes 109 and 111 are inclined downward.
[0063]
As a result, the drain water dropped from the respective coolers 26 and 36 and received by the drain receivers 29 and 39 flows into the drain pipes 109 and 111, respectively, and further flows into the upper inclined surface 103A of the machine room blower 88. After flowing down along the inclination, the water smoothly flows into the receiving portion 90B of the evaporating dish 90 through the water sealing devices 107 and 108.
[0064]
Further, the rear opening of the machine room 41 is closed by a detachable unit cover 91 (FIG. 8 shows a state in which the unit cover 91 is removed). An exhaust port 93 is formed on the right side of the unit cover 91 (on the compressor 69 side).
[0065]
In the figure, reference numeral 112 denotes a frame horizontal plate that borders the lower edge of the front opening of the heat insulating box 6, and is assembled to the heat insulating box 6 so as to constitute a part of the outer box 2, and located Yes. The frame horizontal plate 112 is formed with a horizontally-long rectangular opening 112A, and the evaporating dish 90 is taken in and out of the machine chamber 41 through the opening 112A.
[0066]
And the handle 113 for the refrigerator 1 is attached to the rear surface of this frame horizontal board 112 over the left and right in the form located outside the opening 112A. The carrying handle 113 is made of a hard synthetic resin and includes left and right attachment arm portions 113A and a grip portion 113B extending between the lower ends of the attachment arm portions 113A and 113A. The rear surface of the grip portion 113B has a smooth curved shape.
[0067]
On the other hand, the lower edge of the opening 112A of the frame horizontal plate 112 is formed with an insertion portion 112B having a substantially U-shaped cross section opened to the rear, and the grip portion 113B of the carrying handle 113 is inserted from the rear side. The rear surface of the evaporating dish condenser 83 is exposed with a predetermined distance for inserting fingers from the front edge 83A of the evaporating dish condenser 83. The grip portion 113B is inserted into the insertion portion 112B and is fixed from below by a screw 114 passing therethrough. Further, the mounting arm portions 113A and 113A are disposed on both sides of the opening 112A (the left and right outer sides of the opening 112A). 13), the upper surface thereof is fixed to the bottom plate 6A with screws 116, and the carrying handle 113 is attached to the heat insulating box 6. Note that the mounting arm portion 113A may also be fitted to the bottom plate 6A.
[0068]
In this case, the tip of the screw 114 is located in the insertion portion 112B. Further, as shown in FIG. 11, the front edge 83A of the evaporating dish capacitor 83 is bent downward at a right angle and then bent back, and further has a curved shape as a whole. On the other hand, with the evaporating dish 90 inserted in a predetermined position on the evaporating dish capacitor 83, the handle portion 90A faces forward from the opening 112A (FIG. 11). Further, in this state, the front edge of the evaporating dish 90 other than the central handle portion 90A is located behind the grip portion 113B of the transport handle 113 with a predetermined interval (FIG. 9).
[0069]
When carrying the refrigerator 1, fingers are inserted into the opening 112 </ b> A from both sides of the handle portion 90 </ b> A of the evaporating dish 90. Then, fingers are inserted using the gap between the evaporating dish condenser 83 and the evaporating dish 90, and both sides of the grip part 113B (near the mounting arm part 113A) are gripped and lifted. At this time, the tip of the screw 114 is in the grip portion 113B, and the front edge 83A of the evaporating dish capacitor 83 is folded as described above to have a curved shape. 114 and the leading edge 83A of the evaporating dish condenser 83 are not injured.
[0070]
Here, the kick plate 82 is detachably attached to the frame horizontal plate 112 and has a cross-sectional shape having an upper surface 82A and a front surface 82B and opened downward and rearward. In addition, a total of five rectangular intake ports 101... Are provided at the center of the upper surface 82A in the left-right direction.
[0071]
In addition, each inlet 101 ... is located in the downward projection surface of the door 16, and, thereby, each inlet 101 ... is concealed by the door 16 in the state which the door 16 closed. Furthermore, the outer edges of the air supply ports 101, 101 located at the left and right ends are positioned on the inner side of the left and right outer edges of the container 16 </ b> A.
[0072]
Next, the flow of air in the machine room 41 with the above configuration will be described. When the compressor 69 is operated as described above, the high-temperature and high-pressure refrigerant discharged from the compressor 69 first enters the evaporating dish condenser 83 through the refrigerant discharging pipe 69D, where it dissipates heat and drains in the evaporating dish 90. Heat water from below. The refrigerant that has left the evaporating dish condenser 83 then enters the main condenser 104, where it is condensed, and then passes through a condensing pipe (not shown) provided inside the outer box 2 of the heat insulating box 6 to reach the final state of the condenser 71. The dryer 70 is entered from the exit.
[0073]
The motor unit 88M of the machine room blower 88 is operated in synchronization with the compressor 69 to rotate the fan unit 88F. When the fan unit 88F rotates, outside air is sucked from the intake ports 101... On the upper surface 82A of the kick plate 82 located in front of the machine chamber 41 and the lower side of the kick plate 82 as shown by broken line arrows in FIG. After passing the upper side of the plate 90, the communication unit 86 is reached.
[0074]
The outside air that has entered the compressor base 79 side from the communication portion 86 flows into the main condenser 104 and cools it, and then is sucked into the machine room blower 88 and accelerated. The outside air accelerated by the machine room blower 88 reaches the compressor 69 through the periphery of the refrigerant discharge pipe 69D, blows around the air, cools the air, and then discharges to the outside from the exhaust port 93 of the unit cover 91. Will be.
[0075]
By adopting such a configuration, it is possible to ensure the required condensing capacity by ventilating the main condenser 104 while keeping the height dimension of the machine room 41 in front of the compressor 69 low. Thereby, it becomes possible to maintain the required cooling capacity while keeping the height dimension of the entire refrigerator 1 low or securing the internal volume of the heat insulating box 6 and contribute to energy saving.
[0076]
In particular, as in the embodiment, the heat insulating box 6 is divided into a plurality of upper and lower chambers to constitute the freezer compartment 13 and the refrigerator compartment 11, etc., and a freezer compartment cooler 36 for refrigeration by circulating cold air in these compartments and the refrigerator compartment. In the refrigerator 1 provided with the room coolers 26, the height dimension inevitably increases and the machine room 41 can be made extremely compact.
[0077]
Further, the evaporating dish 90 is heated from below by the evaporating dish condenser 83 and is ventilated by the machine room blower 88, and the evaporation capacity of the drain water introduced from each of the coolers 26 and 36 is dramatically increased. To improve. In particular, since the main condenser 104 is arranged on the air suction side of the machine room blower 88, the main condenser 104 is uniformly ventilated, and the refrigerant condensing efficiency and capacity are further improved. In addition, since the compressor 69 is also air-cooled by forced ventilation, it is possible to prevent or suppress seizure of the compressor 69 and a decrease in operating efficiency.
[0078]
Further, the machine room blower 88 is configured by a square axial fan, and the drain pipes 109 and 111 from the respective coolers 26 and 36 are disposed above the machine room blower 88. The drain pipes 109 and 111 drawn from the upper rear part of the chamber 41 can be led to the front evaporating dish 90 without interfering with the main condenser 104 and the like. Thereby, it is possible to ensure a sufficient size of the main condenser 104.
[0079]
Further, the refrigerant discharge pipe 69D of the compressor 69 is disposed on the windward side of the compressor 69, and at least one reciprocal bending is performed in a direction substantially orthogonal to the wind flow from the machine room blower 88. The high-temperature refrigerant immediately after being discharged from 69 can be effectively cooled by ventilation from the blower 88 for the machine room, and can contribute to improvement of the condensation capacity. Inconvenience that the evaporating dish 90 is excessively heated and damaged can be avoided.
[0080]
In particular, since the refrigerant discharge pipe 69D is bent at least once in a direction substantially perpendicular to the flow of air from the machine room blower 88, sufficient heat exchange can be ensured in an extremely narrow space. .
[0081]
Furthermore, since the three-way valve 72 and the final outlet of the condenser 71 are disposed at least in the machine chamber 41 on the windward side of the main condenser 104 and the compressor 69, the refrigerant condensed in the condenser 71 is regenerated by ventilation. The inconvenience of being heated can be avoided in advance, and it is possible to further improve the operation efficiency and the cooling capacity.
[0082]
【The invention's effect】
As described above in detail, according to the present invention, in the refrigerator comprising the machine room at the lower part of the heat insulation box and having the frame horizontal plate attached to the front surface of the machine room, And a mounting arm portion fixed to the bottom plate of the heat insulating box constituting the top surface of the machine room and a grip portion inserted and fitted into the insertion portion and fixed to the frame horizontal plate. Since the handle is provided, particularly the mounting strength of the frame horizontal plate and the carrying handle is remarkably improved. In particular, since the attachment strength of the grip portion gripped during transportation is improved, it is possible to effectively reduce the occurrence of inconvenience such as breakage that occurs during transportation.
[0083]
Further, since the carrying handle is fixed between the bottom plate of the heat insulating box and the horizontal plate of the heat insulating box, it plays a role of so-called bracing and contributes to the improvement of the strength of the entire refrigerator.
[0084]
According to the second aspect of the present invention, in addition to the above, the insertion portion is formed at the lower edge of the opening formed in the frame horizontal plate so that the grip portion can be securely grasped by inserting a finger from this opening. Become. In particular, since the rear surface of the grip portion has a curved shape, the grip state is also good, and the workability during transportation is significantly improved.
[0085]
According to the invention of claim 3, in addition to the above, the evaporating dish provided in the machine room can be inserted into and removed from the machine room through the opening of the horizontal plate of the frame, and the attachment arm portions of the carrying handle are on both sides of the opening. Since it is located, the attachment arm portion of the carrying handle does not interfere with the insertion and removal of the evaporating dish.
[0086]
According to the invention of claim 4, in addition to the above, a handle portion protruding forward is provided in the center of the front portion of the evaporating dish. The handle portion faces forward from the opening of the frame horizontal plate, and other than the handle portion. Since the evaporating dish is positioned behind the grip part, the evaporating dish can be inserted and pulled out by holding the handle part, and at the time of transportation, fingers are inserted into the opening from both sides of the handle part and transported. The grip part of the handle can be gripped.
[0087]
Particularly, since the grip portion is gripped in the vicinity of the mounting arm portion, the grip portion is transported with a position having the highest strength, which is extremely effective in terms of strength.
[0088]
According to the invention of claim 5, in addition to the above, a predetermined interval is provided between the evaporating dish condenser on which the evaporating dish is placed and the grip part of the conveying handle. Sometimes it is possible to insert a finger from this interval and hold the grip part without hindrance. In particular, since the front edge of the evaporating dish capacitor has a folded shape, the risk of injury will be reduced even if the front edge of the evaporating dish capacitor is hit when inserting a finger.
[0089]
According to the invention of claim 6, in addition to the above, since the leading edge of the evaporating dish capacitor has a curved shape, the evaporating dish capacitor is inserted when inserting a finger between the grip portion for carrying and the evaporating dish capacitor. Even if it hits the leading edge, it is possible to surely prevent inconvenience of injuries and to further improve safety during transportation.
[Brief description of the drawings]
FIG. 1 is a front view of a refrigerator according to the present invention.
FIG. 2 is a vertical side view of the refrigerator of the present invention.
FIG. 3 is an exploded perspective view of a back plate and a back heat insulating material of the refrigerator compartment of the refrigerator of the present invention.
FIG. 4 is a plan sectional view of a refrigerator compartment portion of the refrigerator of the present invention.
FIG. 5 is a plan sectional view of a partition wall portion of the refrigerator of the present invention.
FIG. 6 is a refrigerant circuit diagram of the refrigeration cycle of the refrigerator of the present invention.
FIG. 7 is a vertical side view of the lower part of the refrigerator of the present invention.
FIG. 8 is a rear view of the lower part of the refrigerator according to the present invention.
FIG. 9 is a plan view of the inside of the machine room of the refrigerator of the present invention.
FIG. 10 is an exploded perspective view of a machine room portion of the refrigerator according to the present invention.
FIG. 11 is an enlarged vertical side view of the front part of the machine room of the refrigerator according to the present invention.
FIG. 12 is an enlarged vertical side view of the front of the machine room of the refrigerator of the present invention with the evaporating dish removed.
FIG. 13 is a half-cut front view of the lower part of the refrigerator according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Outer box 3 Inner box 4 Polyurethane heat insulating material 6 Heat insulation box 6A Bottom plate 11 Refrigeration room 13 Freezer room 14, 16, 17, 18, 19 Door 16A Container 26 Refrigerating room cooler 36 Freezer compartment cooler 41 Machine Chamber 69 Compressor 71 Condenser 72 Three-way valve 79 Compressor stand 82 Kick plate 83 Evaporating dish condenser 83A Front edge 88 Machine room fan 90 Evaporating dish 90A Handle 101 Air inlet 104 Main condenser 109, 111 Drain pipe 112 Frame Horizontal plate 112A Opening 112B Insertion portion 113 Carrying handle 113A Mounting arm portion 113B Grip portion

Claims (6)

In the refrigerator comprising a machine room in the lower part of the heat insulation box and having a frame horizontal plate attached to the front of the machine room,
An insertion portion formed on the frame horizontal plate and opened rearward, a mounting arm portion fixed to a bottom plate of a heat insulating box constituting the top surface of the machine room, and a frame horizontal plate inserted and fitted into the insertion portion A refrigerator having a grip having a grip portion fixed to the refrigerator. 2. The refrigerator according to claim 1, wherein an opening is formed in the frame horizontal plate, an insertion portion is formed at a lower edge of the opening, and a rear surface of the grip portion is curved. An evaporating dish is provided in the machine chamber, and the evaporating dish can be inserted into and removed from the opening of the horizontal plate of the frame, and attachment arm portions of the carrying handle are located on both sides of the opening. The refrigerator according to claim 2. A handle portion protruding forward is provided at the center of the front portion of the evaporating dish, and this handle portion faces forward from the opening of the frame horizontal plate, and the evaporating dish other than the handle portion is positioned behind the grip portion. The refrigerator of Claim 3 characterized by the above-mentioned. A condenser for the evaporating dish on which the evaporating dish is placed is provided at the rear of the carrying handle, and a predetermined interval is formed between the evaporating dish capacitor and the grip part of the conveying handle. The refrigerator according to claim 3 or 4, wherein the front edge of the condenser for use has a folded shape. 6. The refrigerator according to claim 5, wherein the front edge of the evaporating dish condenser has a curved shape.

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