JP2010190491A - Cooling chamber - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent dew condensation in a front face frame of a cooling chamber body. <P>SOLUTION: In the cooling chamber, a heat insulation door 14 is attached to a front face opening 13 of the body 10 opened in a front face and housing and cooling a cooling reception object via a magnet packing 17 adhered to the front face frame 13A of the body 10, a machine chamber 11 is installed in a position adjacent to the body 10, and a cooling unit 20 cooling an interior of the body 10 is installed in a machine chamber 11 side in an interior of the body 10. In a front panel 70 composing a front face of the machine chamber 11, an air inlet 71 is formed, taking in air from an exterior of the machine chamber 11 to an interior, and an oblong hole 76 is formed in a position adjacent to the front face frame 13A of the body 10 in the machine chamber 11. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a refrigerator having an air inlet in a front panel of a machine room.

As this type of refrigerator, for example, the one described in Patent Document 1 below is known. This cooler includes a cooler body having a front opening, and inside the cooler body, a storage chamber for storing an object to be cooled and a cooling unit for cooling the storage chamber are provided. A door is attached to the front opening of the cooling body through a packing that is in close contact with the front frame of the cooling body.
On the other hand, a machine room is installed at a position adjacent to the refrigerator main body, and an intake port for taking air in from the outside to the inside of the machine room is formed on the front panel constituting the front surface of the machine room. The condenser is cooled by the outside air sucked from the intake port, and the warm exhaust after being used for cooling is discharged from the rear surface of the machine room.

Japanese Patent Laid-Open No. 7-159017

Here, since the cooling unit is installed on the machine room side inside the cooler body, the machine room side of the front frame of the cooler body is particularly easily cooled, and the packing closely contacting the front frame is also easily cooled. It has become. For this reason, dew condensation occurs on the front frame or packing, and the dew condensation adhering thereto freezes and the packing adheres to the front frame. Then, the door cannot be opened, and the packing may be damaged if the door is forcibly opened.
This invention is completed based on the above situations, Comprising: It aims at preventing the dew condensation in the front frame of a refrigerator main body.

The cooler of the present invention has a front opening and a door attached to the front opening of the cooler main body that houses and cools the object to be cooled through a packing that is in close contact with the front frame of the cooler main body. The machine room is installed at a position adjacent to the cooling body, and a cooling unit for cooling the inside of the cooling body is installed on the machine room side in the cooling body. The front panel that constitutes the front surface of the machine room has an air inlet that takes air into the machine room from the outside, and in the machine room at a position adjacent to the front frame of the cooler body, It is characterized in that the auxiliary air inlet is formed.
According to such a configuration, it is possible to take in air from the outside of the machine room through both the air inlet and the auxiliary air inlet. Here, the front frame or packing of the refrigerator main body is easily cooled from the inside of the refrigerator main body by the cold air from the cooling unit, and is likely to be condensed. However, when outside air is sucked in from the auxiliary air intake, the outside air flows through the front frame surface of the refrigerator main body, so the temperature of the front frame can be raised, and condensation occurs on the front frame or packing of the refrigerator main body. Can be prevented.

The following configuration may also be used.
(1) The auxiliary intake port is formed on a side surface of the front panel adjacent to the cooling body. In this case, since the auxiliary intake port can be formed on the side surface of the front panel, the intake port and the auxiliary intake port can be formed integrally, and the manufacturing cost can be reduced.
(2) A plurality of the auxiliary intake ports are formed along the front frame of the cooling body. If it does in this way, since it can suck in from the exterior of a machine room to the inside by a plurality of sub intake ports, it will become easy to flow outside air on the surface of a front frame, and it can prevent dew condensation efficiently.

  ADVANTAGE OF THE INVENTION According to this invention, the temperature of a front frame can be raised and dew condensation can be prevented because external air flows into the surface of the front frame of a refrigerator main body.

Front view of the refrigerator of this embodiment The perspective view of the refrigerator which looked at the state which opened the heat insulation door of the refrigerator main body from diagonally upward. Plan view of the refrigerator with the top plate removed The perspective view of the refrigerator which looked at the state which opened the heat insulation door of the refrigerator main body at the time of attaching the top plate with a standing part from diagonally upward Front view of the refrigerator when a top plate with a standing part is attached Top view of the refrigerator when a top plate with a standing part is attached Side view of the refrigerator when a top plate with a standing part is attached AA line sectional view of FIG. Side view showing the air guide attached Cross section showing the flow of exhaust in the machine room Enlarged view with insulation removed for panel exhaust The top view which shows the state which installed the refrigerator in the state where the rear end of the top panel was stuck to the wall when the top plate was removed Plan view showing the framework of the machine room Front view showing the framework of the machine room Side view showing the framework of the machine room The perspective view which expanded and showed the side part in the front end part of a top panel Perspective view of top plate with standing part Front panel perspective view Front panel front view Front panel side view Front panel bottom view Operation panel side view Operation panel top view Rear view showing the condenser fan attached to the bracket Rear view of bracket BB sectional view of FIG. Perspective view of the refrigeration apparatus with the condenser removed Front view showing the state before the end of the joiner is inserted into the notch Front view showing the state after inserting the end of the joiner into the notch CC sectional view of FIG. Rear view of the refrigerator with the top plate removed Sectional drawing which shows the state which looked at the flow of the cool air in the inside of a refrigerator main body from the top

<Embodiment>
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. The cooler of the present embodiment is a so-called horizontal cooler, and as shown in FIG. 1, a cooler main body (hereinafter simply referred to as a main body 10) is installed on the right side of the machine room 11. The machine room 11 and the main body 10 are assembled side by side in the horizontal direction, and are supported by a plurality of legs 12 arranged on the bottom surface of the machine room 11 and the main body 10. As shown in FIG. 2, the main body 10 is formed of a heat-insulating box having an open front surface, and the front opening 13 of the main body 10 can be opened and closed with a heat insulating door 14 swinging around a right edge viewed from the front. It is attached to. A top plate 15 having a single plate shape is attached to the upper surfaces of the main body 10 and the machine room 11 so that cooking or the like can be performed on the top plate 15.
In the inside of the main body 10, that is, in the warehouse, as shown in FIG. 32, the area on the right of about 60% viewed from the front is the food storage room R 1, and the remaining left area is the cooling unit 20. It is an installation room R2. The cooling unit 20 is a unit obtained by assembling a cooler 21 and a cooling fan 22. The inside air C3 in the storage chamber R1 is sucked into the cooling unit 20 from the suction port 28 which is an opening on the front side of the cooling fan 22, and cool air is generated while passing through the cooler 21. The cool air C1 and C2 blown out from the air outlet 29, which is the opening of the gas, hits the left side surface 10L inside the warehouse, divides into the front side and the back side, and then partially circulates to the right side 10R side inside the warehouse. While being sent to the storage room R1. As described above, the cool air C1, C2 and the internal air C3 are circulated to rapidly cool the food contained in the tray (not shown).

As shown in FIG. 2, a synthetic resin joiner 16 is attached to the front surface of the front opening 13 of the main body 10 (hereinafter referred to as a front frame 13A). Specifically, the main body 10 is formed by foaming and filling a heat insulating material such as urethane foam resin between an outer box 10A and an inner box 10B, both of which are made of stainless steel plates. A magnet (not shown) is embedded in the joiner 16. On the other hand, a magnet packing 17 is attached to the peripheral edge of the inner surface of the heat insulating door 14. When the heat insulating door 14 is closed, the magnet packing 17 hits the joiner 16 and is attracted and sealed by the attractive force between the magnets.
As shown in FIG. 28, the end portions of the joiner 16 are inserted into a pair of cutouts 10C provided at the corners of the outer box 10A in the front frame 13A. Between both notches 10 </ b> C is a flange portion 10 </ b> D that projects to the near side. As shown in FIG. 29, when the joiner 16 is inserted into the both notches 10C, as shown in FIG. 30, a pair of mounting pieces 16A that protrude in opposite directions along the back surface of the joiner 16 are connected to the notches 10C. While being arranged so as to cover, the flange portion 10D is arranged between the two attachment pieces 16A. If it does in this way, when foaming urethane foam etc. is foam-filled, it can avoid that foaming urethane resin etc. leak to the exterior of the main body 10 by flange part 10D. Moreover, since no post-processing is required on the joiner 16 side, the manufacturing cost can be reduced.

  As shown in FIG. 4, the refrigerator of the present embodiment has a standing top plate (hereinafter simply referred to as a top plate 18) having a standing portion 18 </ b> A whose rear end portion rises upward instead of the top plate 15 having a flat upper surface. Can be attached). As shown in FIGS. 7 and 17, the top plate 18 has mounting holes 18 </ b> B formed on both left and right side surfaces, and is fixed by screwing to the main body 10 and the machine room 11 through the mounting holes 18 </ b> B. It has become. The standing portion 18A has a horizontally long rectangular parallelepiped shape and is open rearward and downward, and a plurality of top plate exhaust ports 18C for exhaust are formed through each of the upper surface portion, the front surface portion, and the left and right side surface portions. ing. In the following description, the refrigerator to which the top plate 18 is attached will be described.

Next, the structure of the machine room 11 will be described.
As shown in FIGS. 13 to 16, the machine room 11 is formed in a box shape by stretching a plurality of panels on the chassis. The chassis has a configuration in which a pair of C channels 100 are opposed to each other in the front-rear direction and assembled to each other by spot welding. As shown in FIG. 14, the C channel 100 is substantially C-shaped, and includes a left frame 101, an upper frame 102 extending rightward from the upper end of the left frame 101, and a lower frame extending rightward from the lower end of the left frame 101. 103, a short upper facing frame 104 extending downward from the right end of the upper frame 102 facing the left frame 101, a short lower facing frame 105 extending upward from the right end of the lower frame 103 facing the left frame 101, etc. Are spot welded together. By screwing the upper facing frame 104 and the lower facing frame 105 to the left side surface of the main body 10, both the C channels 100 are fixed to the main body 10 in a parallel posture.
A top panel 60 is screwed to the upper end of the C channel 100 in a horizontal posture. As shown in FIG. 15, the top panel 60 has a front end portion 60F protruding forward from the front C channel 100, and a rear end portion 60R protruding rearward from the rear C channel 100. Yes. As shown in FIG. 13, a plurality of insulations 62 are arranged on the lower surface of the top panel 60. The upper surface of the insulation 62 is an adhesive surface, and is adhered to the lower surface of the top panel 60 by this adhesive surface.

  As shown in FIG. 16, the left side surface 60L of the front end portion 60F of the top panel 60 is formed by bending downward at the left end of the front end portion 60F. The bending position of the left side surface 60 </ b> L is on the right side of the left side surface of the left frame 101 of the C channel 100. For this reason, when the front end portion 60F of the top panel 60 receives a load from above, the rear end of the left side surface 60L abuts against the front surface of the left side frame 101 and the downward deformation of the front end portion 60F is restricted. Thus, the front end portion 60F of the top panel 60 has high rigidity against the load from above. Since the same applies to the rear end portion 60R of the top panel 60, the description thereof is omitted.

  On the other hand, at the lower end of the C channel 100, a bottom panel 90 disposed opposite to the top panel 60 is screwed in a horizontal posture. The rear end of the bottom panel 90 has a U shape and is folded forward. A rear end of a base 50A, which will be described later, is inserted into the folded portion 91, and is engaged with the upper and lower surfaces of the base 50A in the vertical direction. Thereby, it can control that base 50A shakes in the up-and-down direction, and can control that refrigeration equipment 50 whole vibrates.

As shown in FIG. 1, a front panel 70 having an intake port 71 is detachably mounted on the front surface of the machine room 11. The front panel 70 has a shallow dish shape and has a configuration in which the rear end side is open. Inside the machine room 11, as shown in FIG. 8, a refrigeration apparatus 50 connected to the cooler 21 disposed in the cabinet of the main body 10 is installed. An air-cooled condenser 51 is installed on the front end side of the refrigeration apparatus 50, and a condenser fan 52 and a compressor 53 are sequentially installed behind the condenser 51. As shown in FIG. 27, the refrigeration apparatus 50 is installed in the machine room 11 in a state of being placed on the base 50A. By placing this base 50 </ b> A on the bottom panel 90, the refrigeration apparatus 50 can be taken in and out of the machine room 11.
Below the condenser 51, as shown in FIG. 27, a cleaning pan 54 for receiving the washing water after washing the condenser 51 is provided. FIG. 27 is a view of the refrigeration apparatus 50 with the condenser 51 removed as viewed obliquely from above. The cleaning pan 54 is formed in a square shallow dish shape having a width substantially the same as that of the condenser 51 and a depth dimension larger than that of the condenser 51. A pair of drain holes 54A are opened in the bottom plate of the cleaning pan 54, and a pair of openings (not shown) are formed in the base 50A of the refrigeration apparatus 50 in alignment with these drain holes 54A. .

As shown in FIG. 9, a pair of upper and lower air filters 55 are detachably mounted on the front surface of the condenser 51. The air filter 55 has a configuration in which a filter mesh is stretched in a synthetic resin frame, and as a whole, the air filter 55 is formed in a rectangular shape that substantially covers the front surface of the condenser 51. A handle protrudes from the center of the frame in the width direction (center height) on the front surface of the lower frame.
The lower air filter 55 extends forward from the upper front edge of the cleaning pan 54, and is supported by a lower support recess 55A that is bent upward at the front end portion thereof. Therefore, the lower end portion of the lower air filter 55 does not have to be dropped into the cleaning pan 54 and supported, and there is no possibility that the cleaning liquid or the like adheres to the lower end portion of the lower air filter 55.
At the center in the vertical direction of the condenser 51, it extends forward, extends downward at its front end, extends forward again at its lower end, and is bent upward at its front end. An intermediate support portion 55B is formed, and the upper air filter 55 is supported by the front concave portion of the intermediate support portion 55B. Further, the upper end of the lower air filter 55 is inserted into the rear concave portion of the intermediate support portion 55B. As described above, the intermediate support portion 55B is a support component shared by the upper and lower air filters 55, so that the number of components can be reduced.
The upper end of the condenser 51 is formed with an upper support recess 55C that extends forward and is bent downward at the front end thereof. The upper end of the upper air filter 55 is formed in the upper support recess 55C. Is configured to be inserted. The reason why a pair of air filters 55 is used instead of a single air filter is that this air filter 55 is an air filter shared with other products. By adopting the intermediate support portion 55B, further parts can be shared.

As shown in FIG. 31, a stopper 80 is attached to the rear surface of the machine room 11, and a rear exhaust surface 81 is formed below the stopper 80. The stopper 80 is provided between the rear surface of the upper facing frame 104 and the rear surface of the left frame 101, and plays a role of reinforcing the C channel 100. The rear exhaust surface 81 is an opening for exhausting air from the inside of the machine room 11 to the outside. When the refrigeration apparatus 50 is operated, the condenser fan 52 is driven and sucked from the air inlet 71 of the front panel 70. The condenser 51 is cooled by the outside air, and warm exhaust (hereinafter simply referred to as warm air) after being used for cooling is exhausted rearward from the rear exhaust surface 81.
A kick panel 72 is attached to the lower portion of the front panel 70 as shown in FIG. As shown in FIG. 10, the kick panel 72 is provided in a height range from the lower end of the front panel 70 to substantially the floor surface. For this reason, the warm air discharged from the rear exhaust surface 81 is blocked by the kick panel 72 in the course of flowing forward through the space between the bottom surface and the floor surface of the machine room 11 and is not sucked into the condenser 51 again. It has become.
As shown in FIG. 19, the kick panel 72 is connected to the lower portion of the front panel 70 by a pair of hinge members 73 arranged at a predetermined interval on the left and right. For this reason, as shown in FIG. 20, the lower end side of the kick panel 72 is in a state of being lifted approximately 90 degrees forward about the hinge member 73 as a rotation center (two-dot chain line in FIG. 20). In addition, since the hinge member 73 is attached to the level | step difference 70A which faced the front side in the lower surface of the front panel 70, the lower end side of the kick panel 72 is not lifted back.
Furthermore, as shown in FIG. 21, a magnet catch 74 is attached to the lower surface of the front panel 70 in front of the step 70A, so that the kick panel 72 is attracted to the magnet catch 74 in a state where it is lifted approximately 90 ° forward. To be held. For this reason, when cleaning the floor surface, the kick panel 72 does not get in the way, and the lower part of the machine room 11 can be easily cleaned.

As shown in FIG. 20, a long hole 76 extending in the front-rear direction is formed through the right side surface (side surface adjacent to the main body 10) of the front panel 70. As shown in FIG. 4, the right side surface of the front panel 70 is disposed adjacent to the front frame 13 </ b> A of the front opening 13 of the main body 10. A plurality of the long holes 76 are arranged in the vertical direction along the front frame 13 </ b> A of the front opening 13 of the main body 10.
By the way, the surface of the front frame 13 </ b> A tends to be at a lower temperature than the outside air. The reason for this is that, as shown in FIG. 32, the cold air C1 blown to the rear side of the cooler 21 and circulated toward the front side is blown to the front opening 13 of the main body 10 or the left end portion of the heat insulating door 14, This is because the part becomes extremely cold. Furthermore, when the heat insulating door 14 is closed, a gap is formed between the left side surface of the heat insulating door 14 and the right side surface of the front panel 70, and the front frame 13A is not easily circulated through the gap. Condensation is likely to occur. As a result, the front frame 13A or the magnet packing 17 freezes and the heat insulating door 14 cannot be opened.
Therefore, in this embodiment, by intentionally forming a flow of outside air that is sucked into the long hole 76 through the surface of the front frame 13A, it is possible to prevent low temperature outside air from staying on the surface of the front frame 13A, and The surface temperature of the frame 13A can be raised to prevent condensation. Therefore, the opening / closing operation of the heat insulating door 14 is not hindered.

As shown in FIG. 9, an operation panel 75 and an electrical equipment box 110 are arranged at the top and bottom of the machine room 11 in this order. Further, as shown in FIG. 22, a mounting plate 75 </ b> A protruding forward is formed at the upper end of the operation panel 75, and this mounting plate 75 </ b> A is mounted on the lower surface side of the front end portion 60 </ b> F of the top panel 60. As shown in FIG. 23, a plurality of long holes 75B that are long in the left-right direction are formed in the mounting plate 75A side by side in the front-rear and left-right directions.
By the way, a mesh member (not shown) for waste heat is attached to the upper surface of the electrical box 110, and there is an electrical component between the upper surface of the operation panel 75 and the upper surface of the electrical box 110 and the lower surface of the top plate 18. An exhaust space S1 for exhausting waste heat from the box 110 is formed. Due to the exhaust space S1 above the electrical box 110, the waste heat from the upper surface of the electrical box 110 is directed forward through the exhaust space S1 above the electrical box 110, as indicated by a dashed line F1 in FIG. An exhaust path F <b> 1 forward of the top panel 60 that is discharged to the outside through the long hole 75 </ b> B of the panel 75 is formed.

Waste heat in the refrigeration apparatus 50 is generated not only from the electrical box 110 but also from the condenser 51 and the compressor 53 disposed below the electrical box 110. Therefore, an exhaust space S2 is also formed below the electrical box 110, and a rear exhaust surface 81 for exhausting waste heat in the machine room 11 rearward is formed in the stopper 80. Here, the bracket 56 for attaching the condenser fan 52 is formed with an air guide 56A for sending the warm air from the condenser fan 52 to the exhaust space S2 below the electrical equipment box 110, and thereby the electrical equipment box 110. The waste heat in the lower exhaust space S2 can be smoothly sent to the rear exhaust surface 81.
As shown in FIGS. 24 to 26, the bracket 56 is made of a rectangular metal plate that is long in the vertical direction as a whole, and a mounting portion 56 </ b> B for mounting a fan motor 52 </ b> A for rotating the condenser fan 52. A substantially square opening 56C opened in the front-rear direction on both sides is provided. The hot air from the condenser fan 52 is blown to the compressor 53 through the lower opening 56 </ b> C to cool the compressor 53.
On the other hand, as shown in FIG. 26, the air guide 56A is formed so as to extend obliquely upward and rearward by bending a portion corresponding to the upper opening 56C with the lower end of the opening edge as a bending center and bending the upper end backward. . For this reason, the warm air from the condenser fan 52 is guided to the exhaust space S2 below the electrical box 110 by the air guide 56A. For this reason, waste heat in the exhaust space S <b> 2 below the electrical box 110 is sent to the rear exhaust surface 81. As shown in FIG. 27, a mounting piece that is screwed to the upper surface of the base 50A is formed on the lower end portion of the bracket 56 so as to project laterally.

  As shown in FIG. 27, a part of the left side surface of the bracket 56 extends obliquely left rearward, and this extended portion is a second air guide 56D. The warm air from the condenser fan 52 is guided to the side panel 95 constituting the left surface of the machine room 11 by the second air guide 56D. On the other hand, as shown in FIG. 7, the side panel 95 has a plurality of long holes 96 penetratingly formed at the center thereof. The hot air guided by the second air guide 56 </ b> D is discharged to the outside of the machine room 11 through the long hole 96. At this time, the exhaust gas flowing from the rear surface of the machine room 11 toward the side panel 95 is guided upward by colliding with the hot air that has come out of the plurality of long holes 96. Thereby, it can control that the warm air from the rear surface of the machine room 11 is sucked into the condenser 51 as it is and short-cycled.

Now, as shown in FIG. 3, a panel exhaust port 61 composed of a plurality of square holes is formed through the rear portion of the top panel 60. The panel exhaust port 61 is a hole for discharging the exhaust from the rear exhaust surface 81 to the external space S5 above the cooler when the cooler is installed on the wall W. Further, although the panel exhaust port 61 is normally closed by the insulation 62, when the exhaust needs to be performed, the panel exhaust port 61 is shown as indicated by a two-dot chain line in FIG. The insulation 62 corresponding to is removed.
On the other hand, as shown in FIG. 6, the standing portion 18 </ b> A of the top plate 18 is formed in a positional relationship overlapping with the panel exhaust port 61 in the vertical direction. For this reason, the exhaust space S4 behind the machine room 11 communicates with the external space S5 above the cooler via the panel exhaust port 61 and the top plate exhaust port 18C of the standing portion 18A. Thereby, the exhaust path F2 to the upper part of the machine room 11 is formed.
In some cases, the top panel 60 is covered with a top plate, and then a steam convection oven (not shown) or the like is placed on the top plate. In this case, by forming a through hole at a position corresponding to the top plate exhaust port 18 </ b> C in the flat top plate 15, wiring and piping can be passed through the through hole and the panel exhaust port 61.

  As shown in FIG. 3, the main body 10 is installed such that the rear surface of the main body 10 is in front of the rear end of the top panel 60. As a result, the upper surface rear end of the top panel 60 is connected to the upper surface rear end of the main body 10 via the step 63. Then, when the refrigerator is installed so as to fit the wall W, an exhaust space S3 is formed between the rear surface of the main body 10 and the wall W due to the step 63 as shown in FIG. The exhaust space S3 communicates with the exhaust space S4 behind the machine room 11. Further, as shown in FIG. 6, the standing portion 18 </ b> A of the top plate 18 is formed over the entire width at the rear end of the top surface of the top plate 18, and has a positional relationship overlapping with the exhaust space S <b> 3 behind the main body 10 in the vertical direction. It has become. Therefore, the exhaust space S4 behind the machine room 11 communicates with the external space S5 above the cooler via the exhaust space S3 behind the main body 10 and the top plate exhaust port 18C of the standing portion 18A. Thereby, the exhaust path F3 to the upper part of the main body 10 is formed.

  The present embodiment is configured as described above, and its operation will be described subsequently. First, the installation location of the refrigerator and the cooking utensil installed on the top surface of the top plate 15 are checked. When it is necessary to install the refrigerator tightly on the wall W, the top plate 15 is removed, the insulation 62 corresponding to the panel exhaust port 61 is removed, and the top plate 18 with the standing portion 18A is placed on the top. The top surface of the panel 60 and the top surface of the main body 10 are covered, and screws are attached to the mounting holes 18B on the left and right sides of the top plate 18. On the other hand, when a steam convection oven or the like is installed on the top surface of the top plate 15, a through hole is formed at a position corresponding to the panel exhaust port 61 in the top plate 15, and piping and wiring are connected to the through hole and the panel exhaust port 61. Through. Further, if it is desired to install the rear end of the top plate 15 so as to fit the wall W, it is only necessary to provide a through hole and a panel exhaust port 61 that are larger than the piping and wiring. In the following, since the description is duplicated, the case where the top plate 18 is attached will be described.

When the refrigeration device 50 and the cooling fan 22 of the cooling unit 20 are driven during the cooling operation, the internal air is sucked into the suction port 28 of the cooling unit 20 from the storage chamber R1, and heat is exchanged by the cooler 21 to cool the air. After the generation of C1 and C2, the storage chamber R1 is rapidly cooled by circulating and supplying the cold air C1 and C2 to the storage chamber R1 again. During this cooling operation, along with the driving of the condenser fan 52, outside air is taken into the machine room 11 from the intake port 71 of the front panel 70, and the condenser 51, the compressor 53, and the like are cooled. The warm air after cooling is mainly discharged from the rear exhaust surface 81 to the exhaust space S4 behind the machine room 11.
Here, the surface temperature of the front frame 13A of the front opening 13 of the main body 10 gradually decreases as the interior cools, and an environment in which condensation easily occurs. However, when air is sucked through the long hole 76 formed in the right side surface of the front panel 70, outside air passes through the surface of the front frame 13A, and the surface temperature of the front frame 13A rises due to this outside air. Therefore, it is possible to prevent condensation on the front frame 13A.
Next, a part of the warm air from the condenser fan 52 is guided upward by the air guide 56A, and the waste heat accumulated in the exhaust space S2 below the electrical box 110 can be efficiently sent to the rear exhaust surface 81. .
Further, a part of the warm air from the condenser fan 52 is guided to the left by the second air guide 56D and is sent to the outside of the machine room 11 from the long hole 96 of the side panel 95. At this time, even if a part of the exhaust from the rear exhaust surface 81 wraps around the side panel 95 side, the exhaust from the rear exhaust surface 81 is caused by the collision with the warm air exhausted from the long hole 96. It is guided upward and is not sucked from the intake port 71 again.
Further, a part of the exhaust from the rear exhaust surface 81 is directed to the external space S5 above the refrigerator through two routes as indicated by two-dot chain lines F2 and F3 in FIG. The exhaust path F2 toward the panel exhaust port 61 is exhausted to the external space S5 above the refrigerator through the panel exhaust port 61 and the top plate exhaust port 18C of the standing portion 18A. On the other hand, the exhaust path F3 toward the exhaust space S3 behind the main body 10 is exhausted to the external space S5 above the refrigerator through the exhaust space S3 behind the main body 10 and the top plate exhaust port 18C of the standing portion 18A.

As described above, according to the present embodiment, even when the refrigerator is installed in a state where the rear end of the top panel 60 is closely attached to the wall W, the top panel 60 is discharged rearward from the rear exhaust surface 81 of the machine room 11. Exhaust gas is discharged to the external space S5 above the refrigerator through the panel exhaust port 61 of the top panel 60 and the top plate exhaust port 18C of the standing portion 18A. In addition, when it is desired to install other cooking utensils or the like on the upper surface of the top panel 60, the panel exhaust port 61 can be used to pass piping and wiring. Therefore, the refrigerator can be installed in a state where the rear end of the top panel 60 is tightly attached to the wall W while ensuring the exhaust path F <b> 2 above the machine room 11.
Further, when the refrigerator is installed in a state where the rear end of the top panel 60 is tightly attached to the wall W, the upper rear end of the top panel 60 and the upper rear end of the main body 10 are connected via a step 63. Due to the step 63, an exhaust space S3 communicating with the exhaust space S4 behind the machine room 11 is formed between the rear surface of the main body 10 and the wall W. Accordingly, the refrigerator can be installed in a state where the rear end of the top panel 60 is closely attached to the wall W while ensuring the exhaust path F3 upward of the main body 10.
Further, even when the top plate 18 is attached to the upper surface of the top panel 60 and the upper surface of the main body 10, since the exhaust can be exhausted to the external space S5 above the refrigerator through the top plate exhaust port 18C, The route F2 and the exhaust route F3 upward of the main body 10 can be secured.

Further, since the standing portion 18A is provided at the rear end portion of the top plate 18 and the plurality of top plate exhaust ports 18C are provided at the standing portion 18A, a plurality of top plate exhaust ports are formed at the rear end portion of the top surface of the top plate 15. Compared to the case, the area of the entire top plate exhaust port can be increased, and the exhaust efficiency can be increased.
Furthermore, according to the present embodiment, air can be sucked into the machine chamber 11 from the outside through both the air inlet 71 and the long hole 76. When outside air is sucked through the long hole 76, the outside air flows on the surface of the front frame 13A of the main body 10, whereby the surface temperature of the front frame 13A can be raised, and condensation can be prevented.
Moreover, since the long hole 76 is formed in the right side surface of the front panel 70, the air inlet 71 and the long hole 76 can be formed integrally, and a manufacturing cost can be reduced. In addition, since a plurality of the long holes 76 are formed in the vertical direction along the front frame 13A of the main body 10, the outside air easily flows on the surface of the front frame 13A, and condensation can be efficiently prevented.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) The arrangement position of the machine room 11 may be installed on the right side of the main body 10 when viewed from the front, contrary to the above embodiment. In this case, the cooling unit 20 may be installed on the right side when viewed from the front of the interior, and the cooler and the machine room 11 may be connected by a refrigerant pipe.
(2) Although the long hole 76 is provided in the right side surface of the front panel 70 having a shallow dish shape in the above embodiment, according to the present invention, the front panel 70 is formed in a flat plate shape, and is separated from the front frame 13A of the main body 10. A side wall projecting forward may be provided, and a long hole may be provided in the side wall.

(3) Although the long hole 76 is provided on the right side surface of the front panel 70 in the above embodiment, according to the present invention, the flange portion that is flush with the front frame 13A is formed from the rear end of the right side surface of the front panel 70. And you may provide a long hole in this flange part.
(4) Although a plurality of the long holes 76 are provided in the vertical direction along the front frame 13A in the above embodiment, according to the present invention, only one long hole 76 may be provided. In the case of a so-called vertical refrigerator in which the main body 10 is installed on the upper surface of the machine room 11, a plurality of long holes 76 may be provided in the left-right direction along the front frame 13A.

  DESCRIPTION OF SYMBOLS 10 ... Cooling room main body 11 ... Machine room 13 ... Front opening part 13A ... Front frame 14 ... Thermal insulation door 17 ... Magnet packing 20 ... Cooling unit 70 ... Front panel 71 ... Intake port 76 ... Long hole (sub-intake port)

Claims (3)

A door is attached to the front opening of the refrigerator main body that cools the object to be cooled by storing the object to be cooled through a packing that is in close contact with the front frame of the refrigerator main body. A machine room is installed at a position to be installed, and a cooling unit for cooling the inside of the cooling body is installed on the machine room side inside the cooling body,
The front panel that constitutes the front surface of the machine room is formed with an intake port that sucks air from the outside to the inside of the machine room.
In the machine room, a sub-intake port is formed at a position adjacent to the front frame of the refrigerator main body.   The refrigerator according to claim 1, wherein the front panel has a shallow dish shape, and the auxiliary intake port is formed on a side surface of the front panel adjacent to the refrigerator main body.   The cooler according to claim 1 or 2, wherein a plurality of the sub-intake ports are formed along a front frame of the cooler main body.

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