JP2013019623A - Refrigerator - Google Patents

Abstract

In a refrigerator in which a condenser is air-cooled by a fan, it is possible to achieve both improvement of heat dissipation capability of the condenser and the compressor and promotion of evaporation of stored water.
A size in a width direction of a second section in which a compressor and an evaporating dish are arranged is made smaller than a size in a width direction of a first section in which a condenser is disposed. As a result, the air that has passed through the condenser 18 can be efficiently used for cooling the compressor 17 via the fan 19, so that the heat dissipation capability is improved and the air that has passed through the condenser 18 is converted into the evaporating dish 20. Therefore, evaporation of the stored water can be promoted.
[Selection] Figure 2

Description

  The present invention relates to a structure in which a condenser and an air compressor are cooled with a fan, and both the improvement of the heat dissipation ability of the condenser and the compressor and the promotion of the evaporation ability of stored water are achieved.

  From the standpoint of energy saving, a household refrigerator is used in combination with a condenser that is affixed to the inside of the outer casing and is naturally air-cooled from the outer casing.

  However, in the refrigerator for home use, the size of the condenser main body and the air passage is restricted from the viewpoint of space saving, and there is a concern that the air passage is blocked due to dust adhering to the room.

  Therefore, a condenser design that takes into account space saving and dust adhesion has been proposed. In particular, the lower machine room is provided in the refrigerator body, the condenser is installed in the lower machine room, the outside air is sucked from the air intake of the bottom plate and the condenser is air-cooled, so that the area of the air intake can be increased, and the dust Even when the air path is blocked due to adhesion, it is possible to suppress a significant decrease in the performance of the condenser due to a decrease in the air volume.

  Also, since the refrigerator cools the internal storage room, the defrost water generated when the internal air is cooled is always guided to the lower machine room through the drainage path and collected in the evaporating dish, making the maintenance-free for consumers. Therefore, a mechanism for evaporating the collected stored water is required. Conventionally, this kind of stored water evaporation method for refrigerators employs a method in which the heat obtained along with cooling or heat dissipation of the heat generating components is used to evaporate the stored water stored in the evaporating dish.

  That is, in designing the lower machine room, it is important to improve both the heat dissipation capability of the condenser and to secure the evaporation capability of the stored water (see, for example, Patent Document 1).

  Hereinafter, a conventional refrigerator will be described with reference to the drawings.

  FIG. 7 is a longitudinal sectional view of a lower machine room of a conventional refrigerator, and FIG. 8 is a transverse sectional view of a lower machine room of a conventional refrigerator.

  7 to 8, reference numeral 40 denotes a lower machine room of the refrigerator, 41 denotes a heat insulating wall of a storage room (not shown) that forms the upper surface of the lower machine room 40, 42 denotes a bottom plate of the lower machine room 40, and 43 denotes a lower machine. A condenser installed in the chamber 40, 44 is a fan for air-cooling the condenser 43, and 45 is a leg that supports the casing of the refrigerator.

  In FIG. 8, 50 is an evaporating dish for storing defrosted water in a storage chamber (not shown), 51 is an immersion pipe for heating the water stored in the evaporating dish, 52 is a compressor, and 53 is an outlet. , 54 are partition walls that divide the lower machine chamber 40.

  Here, air that has passed while cooling the condenser 43 is collected above the evaporating dish 50 by the partition wall 54, then passes through the fan 44, cools the compressor 52, and is discharged to the outside through the discharge port 53. . At this time, the periphery of the evaporating dish 50 is dried by air heated by exchanging heat with the condenser 43, thereby promoting the evaporation of water stored in the evaporating dish 50. By installing the condenser 43 and the compressor 52 in the same air path, the compressor 52 can be simultaneously cooled using the air that has passed while cooling the condenser 43.

Japanese Patent Laid-Open No. 9-292188

  However, in the conventional refrigerator configuration, regarding the heat radiation of the condenser 43, the shape of the air passage in the lower machine chamber 40 is distorted to increase the air passage resistance, and air cannot flow through the entire condenser 43. There has been a problem that the heat dissipation efficiency of the condenser 43 is reduced.

  Regarding the evaporation of stored water, in the case of this type of evaporation method, there are the following three items as factors for evaporating water. The first is the surface wind speed, the second is the water temperature, and the third is the area of the opening where water and outside air contact.

  However, in the conventional configuration described above, the air that has passed through the condenser 43 cannot be reliably guided to the vicinity of the water surface in the evaporating dish 50, and the wind speed on the water surface is low. In order to secure the capacity, it was necessary to increase the area of the opening of the evaporating dish 50.

  That is, a large space is required to install the evaporating dish 50, and therefore, the installation space of the condenser 43 and the fan 44 is limited, and the heat radiation capacity of the condenser 43 is increased by increasing the size of the condenser 43 and the fan 44. It has a problem that it cannot be improved.

  The present invention solves the above-mentioned conventional problems, and is a refrigerator capable of achieving both improvement of the heat dissipation capability of a condenser and a compressor by suppressing airflow resistance and promotion of the evaporation capability of stored water with a simple configuration. The purpose is to provide.

  In order to solve the above-described conventional problems, the refrigerator of the present invention is installed in the lower machine room on the leeward side of the condenser and the condenser, and serves as a main driving source of the blower circuit, and on the leeward side of the fan. In the refrigerator having a partition that divides the compressor and the evaporating dish installed, and that partitions the first section in which the condenser is disposed, and the second section in which the compressor and the evaporating dish are disposed. The size in the width direction of the second section is smaller than the size in the width direction of the section.

  As a result, the air that has passed through the condenser can be efficiently used for cooling the compressor via the fan, so that the heat dissipation capability is improved and the evaporating dish is disposed near the compressor to Since the heat radiation can be used for the evaporation of the stored water and the air that has passed through the condenser can be guided to the vicinity of the water surface in the evaporating dish, the evaporation of the stored water can be promoted.

  The refrigerator of the present invention can efficiently use the air that has passed through the condenser for cooling the compressor via a fan, so that the heat dissipation capability is improved, the evaporation of the stored water is promoted, and the evaporating dish is saved. By arranging it in the space, it is possible to increase the size of the condenser and the fan, and it is possible to save energy by further improving the heat dissipation capability.

The longitudinal cross-sectional view of the refrigerator in Embodiment 1 of this invention Cross section of the lower machine room of the refrigerator in Embodiment 1 of the present invention The rear view of the lower machine room of the refrigerator in Embodiment 1 of this invention The longitudinal cross-sectional view of the lower machine room of the refrigerator in Embodiment 2 of this invention Cross-sectional view of the lower machine room of the refrigerator in Embodiment 2 of the present invention The rear view of the lower machine room of the refrigerator in Embodiment 2 of the present invention Vertical section of the lower machine room of a conventional refrigerator Cross-sectional view of the lower machine room of a conventional refrigerator

  In the first aspect of the present invention, a condenser and a fan installed on the leeward side of the condenser and serving as a main driving source of the blower circuit, and a compressor and an evaporating dish installed on the leeward side of the fan are accommodated in the lower machine chamber. In addition, in the refrigerator having a partition that partitions the first section in which the condenser is disposed and the second section in which the compressor and the evaporating dish are disposed, the first section is larger than the size in the width direction of the first section. By making the refrigerator with a small size in the width direction of the two compartments, the air that has passed through the condenser can be efficiently used for cooling the compressor via the fan, so that the heat dissipation capability is improved and the compression is performed. By disposing the evaporating dish near the machine, the heat of the compressor can be used for evaporating the stored water, and the air that has passed through the condenser can be guided to the vicinity of the water surface in the evaporating dish. Can promote .

  According to a second aspect of the present invention, in particular, in the first aspect of the present invention, the air path resistance suppression means is provided on the windward side and the leeward side of the fan, thereby reducing the air path resistance around the fan and cooling the condenser. Air volume reduction can be suppressed, the heat radiation amount of the condenser and the compressor can be increased, and the evaporation speed of the stored water can be promoted because the surface wind speed of the evaporating dish is increased.

  In a third aspect of the invention, in particular, in the second aspect of the invention, the air path resistance suppression means is provided at a distance equal to or larger than the radius of the fan from the fan central portion, thereby further reducing the air path resistance around the fan, In order to suppress the reduction of the air volume of the outside air that cools the condenser, the heat radiation amount of the condenser and the compressor can be further increased, and the evaporation speed of the stored water is further promoted because the surface wind speed of the evaporating dish is increased. Can do.

  In a fourth aspect of the present invention, in particular, in the first to third aspects of the present invention, the present invention has a bottom plate that constitutes a bottom surface of the lower machine chamber, and an intake port that is formed in the bottom plate and sucks outside air from below the condenser. By arranging the intake port on the front side of the bottom plate, the outside air sucked from the intake port can flow through the entire condenser, and the outside air heat-exchanged with the condenser can be passed through the exhaust port through the rear surface of the housing. When it is discharged to the side, it is possible to suppress the intake from the intake port (short circuit) again through the gap between the bottom plate and the floor surface, and the cold air continues to recirculate in the lower machine room and becomes high temperature. This can be prevented and the heat radiation of the condenser can be increased.

  According to a fifth aspect of the present invention, in particular, in the first to fourth aspects of the present invention, the distance between the back side of the bottom plate and the floor surface is reduced with respect to the distance between the lower side of the condenser and the floor surface. When the heat exchanged outside air is discharged to the rear side of the housing through the discharge port, it is possible to further suppress the intake from the intake port through the gap between the bottom plate and the floor surface. It is possible to increase the heat radiation amount of the condenser by preventing the cold air from continuing to recirculate and reaching a high temperature.

  A sixth invention is the first to fifth inventions, in particular, having a back plate constituting the back of the lower machine room and a discharge port formed in the back plate, and an upward air flow promoting means at the discharge port When the outside air exchanged heat with the condenser is discharged to the rear side of the housing through the discharge port, the air is further sucked from the intake port through the gap between the bottom plate and the floor surface. It is possible to suppress the cooling air from continuing to recirculate in the lower machine room and to increase the heat dissipation amount of the condenser by preventing high temperature.

  In a seventh aspect of the invention, in particular, in the first to sixth aspects of the invention, even when a portion of the air intake port is blocked by dust adhesion by increasing the area of the air intake port relative to the area of the exhaust port. It is possible to suppress a significant decrease in the performance of the condenser due to a decrease in the air volume.

  According to an eighth invention, in particular, in the first to seventh inventions, the fan mounted on the partition wall is provided, and a gap prevention member is provided between the partition wall and the upper surface of the lower machine chamber. When the air that has passed through the condenser is discharged to the leeward side of the fan by sealing the gap between the upper surface of the lower machine room and the lower machine room, it flows again to the condenser side through the gap between the partition wall and the upper surface of the lower machine room. This prevents the cold air from recirculating through the lower machine room and prevents it from continuously becoming hot, increasing the heat dissipation of the condenser and propagating the fan drive sound to the upper surface of the lower machine room via the partition wall. Can be prevented.

  In the ninth aspect of the invention, in particular, in the first to eighth aspects of the invention, by arranging a wind direction plate above the evaporating dish, the air that has passed through the condenser can be reliably guided near the water surface in the evaporating dish. , Evaporation of stored water can be promoted.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the same reference numerals are given to the same components as those of the conventional example, and detailed description thereof will be omitted. The present invention is not limited to the embodiments.

(Embodiment 1)
1 is a longitudinal sectional view of a refrigerator according to Embodiment 1 of the present invention, FIG. 2 is a transverse sectional view of a lower machine room of the refrigerator according to Embodiment 1 of the present invention, and FIG. 3 is an embodiment of the present invention. 2 is a rear view of a lower machine room of the refrigerator in FIG.

  1 to 3, the refrigerator 11 includes a housing 12, a door 13, legs 14 that support the housing 12, an evaporator 15 that cools the inside of the housing 12, and a lower machine chamber 16 that is provided in a lower portion of the housing 12. , A compressor 17, a condenser 18, a fan 19, and an evaporating dish 20 housed in the lower machine room 16.

  The lower machine room 16 is divided into two sections by a partition wall 21, a condenser 18 in the first section 22 on the leeward side of the fan 19, and a compressor 17 in the second section 23 on the leeward side of the fan 19, The evaporating dish 20 disposed in the upper part of the compressor 17 is accommodated, and the fan 19 is attached to the partition wall 21.

  The lower machine room 16 has a bottom plate 24 that forms the bottom surface of the lower machine room 16 and a back plate 25 that forms the back surface.

  Here, the condenser 18 is formed of a spiral fin tube in which a strip-shaped fin is wound around the refrigerant pipe, and the refrigerant pipe is spirally wound in an oval shape. And the distance (fin pitch) between refrigerant | coolant piping at the time of spirally winding refrigerant | coolant piping to an oval type is changed so that it may become small toward the leeward side.

  The refrigerator 11 also has a plurality of air inlets 26 provided on the bottom plate 24, an outlet 27 provided on the back plate 25, and a spacer 28 on the back side of the housing 12, and the back surface of the refrigerator 11 is pressed against the wall. In such a case, the communication air passage 29 is secured from the outlet 27 of the lower machine chamber 16 by grounding the spacer 28 to the rear wall.

  Here, reference numeral 101 denotes a refrigerating room arranged at the upper part of the housing 12, and 102 denotes a freezing room arranged at the lower part of the housing 12.

  The refrigerated room 101 is a storage room that is kept at a low temperature that does not freeze for refrigerated storage, and the specific lower limit of the temperature is usually set to 1 to 5 ° C. In particular, the temperature may be set to 0 to 1 ° C. in order to improve the freshness of fresh products.

  The freezer compartment 102 is a storage compartment set in a freezing temperature zone. Specifically, it is usually set to −22 to −18 ° C. for frozen storage, but may be set to a low temperature such as −30 ° C. and −25 ° C. for improving the frozen storage state. .

  About the refrigerator in Embodiment 1 of this invention comprised as mentioned above, the operation | movement * effect | action is demonstrated below.

  The fan 19 is driven in conjunction with the operation of the compressor 17. By driving the fan 19, the first section 22 of the lower machine chamber 16 partitioned by the partition wall 21 becomes negative pressure, the outside air is sucked from the air inlet 26 provided in the bottom plate 24, and the second section 23 is positive pressure. Thus, the air in the lower machine room 16 is discharged to the outside from a discharge port 27 provided on the back side of the lower machine room 16.

  At this time, the air path shape in the lower machine room 16 can be simplified linearly and the air path resistance of the lower machine room 16 can be suppressed as compared with the conventional one in which the air path shape meanders in the lower machine room. At the same time, since air can flow through the entire condenser 18, the heat dissipation efficiency of the condenser 18 can be improved.

  Moreover, evaporation of the water stored in the evaporating dish 20 is promoted by drying with air heated by heat exchange with the condenser 18.

  At this time, it is preferable to make the size of the second section 23 in the width direction smaller than the size of the first section 22 in the width direction.

  Here, the width of the first section 22 and the width of the second section 23 refer to the size in the left-right direction when the refrigerator body is viewed from the front (that is, the door 13 is viewed from the front).

  As a result, the air that has passed through the condenser 18 can be efficiently used for cooling the compressor 17 via the fan 19, so that the heat dissipation capability is improved and the evaporating dish 20 is disposed above the compressor 17. Thus, since the heat radiation of the compressor 17 can be used for evaporation of the stored water and the air that has passed through the condenser 18 can be guided to the vicinity of the water surface in the evaporating dish 20, evaporation of the stored water can be promoted. it can.

  Further, a part of the refrigerant pipe may be disposed in the evaporating dish 20 to directly exchange heat with the stored water. Accordingly, the water temperature rises by directly exchanging heat with the high-temperature and high-pressure refrigerant immediately after leaving the compressor, so that evaporation of the stored water can be promoted.

  Further, as a wind path resistance suppressing means around the fan 19, it is preferable to provide an R shape in the front bent portion 30, the rear bent portion 31 and the bent portion 32 of the bottom plate 24 in the upper part of the lower machine room 16.

  Moreover, it is preferable to provide the R-shaped part 34 in the evaporating dish 20 around the fan central part 33. This is because it is possible to suppress a reduction in the air volume of the outside air that cools the condenser 18 and to increase the heat radiation amount of the condenser 18.

  Further, the R size of the front side bent portion 30 is preferably about 150 mm, and the R size of the rear side bent portion 31 and the bent portion 32 of the bottom plate 24 is preferably about 50 mm.

  Note that the R-shaped portion of the bent portion 32 of the front side bent portion 30, the rear-side bent portion 31, and the bottom plate 24 at the upper portion of the lower machine chamber 16 and the R-shaped portion 34 of the evaporating dish 20 are radiuses of the fan 19 from the fan central portion 33. It is desirable to provide the distance above.

  When the distance is within the radius of the fan 19, the air flow resistance around the fan 19 is increased, so that the air volume is reduced and the heat radiation amount of the condenser 18 is reduced.

  Further, the air inlet 26 is formed at least 1/2 of the front side of the bottom plate 24, preferably 1/3, and the distance between the back side of the bottom plate 24 not provided with the air inlet 26 and the floor surface is the condenser 18. It is better to make it smaller than the distance between the lower side and the floor. This is to prevent high-temperature exhaust gas from the discharge port 27 from being sucked again from the intake port 26 through the space between the bottom plate 24 and the floor surface.

  The clearance between the air inlet 26 and the floor surface should be at least 10 mm or more, preferably 20 mm or more. This is to prevent dust and dust from accumulating between the air inlet 26 and the floor and closing the air inlet 26.

  The bottom plate 24 may be molded by dividing the front side provided with the intake port 26 and the back side provided with no intake port 26.

  Further, the position of the discharge port 27 provided in the back plate 25 is preferably provided above the fan central portion 33. This is because when the outside air heat-exchanged with the condenser 18 is discharged to the back side of the housing 12 through the discharge port 27, the air is again sucked from the intake port 26 through the gap between the bottom plate 24 and the floor surface. This is to suppress this.

  Similarly, it is preferable to provide a wind direction plate 35 that directs exhaust air upward at the exhaust port 27 as the upward air flow promoting means.

  Further, the area of the air inlet 26 provided in the bottom plate 24 may be larger than the area of the outlet 27 provided in the back plate 25. This is for suppressing a significant performance degradation of the condenser 18 due to a decrease in the air volume even when a part of the air inlet 26 is blocked due to dust adhesion.

  The area of the intake port 26 is preferably about twice the area of the discharge port 27.

  Further, it is preferable to provide a gap preventing member between the partition wall 21 that divides the lower machine chamber 16 and the upper surface 36 on the back side of the lower machine chamber 16. This seals the gap between the partition wall 21 and the upper surface 36 on the back side of the lower machine chamber 16, so that when the air that has passed through the condenser is discharged to the leeward side of the fan, the gap between the partition wall and the upper surface of the lower machine chamber 16 It is possible to prevent the air from flowing again to the condenser via the refrigeration and to recirculate the cold air in the lower machine room and prevent the heat from continuing to increase, thereby increasing the heat radiation amount of the condenser.

  Moreover, it is good to use a buffer material as a clearance prevention member. This is to prevent the driving sound of the fan 19 from propagating to the upper surface 36 on the back side of the lower machine room 16 through the partition wall 21.

  In addition, it is preferable to arrange a wind direction plate 37 for giving directivity to the air above the evaporating dish 20. This is because the air passing through the condenser 18 is meandered downward and the air is surely guided to the vicinity of the water surface in the evaporating dish 20 to improve the wind speed of the water surface and promote the evaporation of the stored water.

  The size in the width direction of the wind direction plate 37 is equal to or larger than the size in the width direction of the evaporating dish 20 so that the air that has passed through the condenser 18 can be reliably guided to the vicinity of the water surface in the evaporating dish 20. desirable.

Further, it is desirable that the height direction of the wind direction plate 37 is set such that the distance between the lower side of the wind direction plate 37 and the upper side of the evaporating dish 20 is about 15 to 20 mm. Lower side of wind direction plate 37 and evaporating dish 20
When the distance from the upper side is 20 mm or more, the air that has passed through the condenser 18 cannot be reliably guided to the vicinity of the water surface in the evaporating dish 20, and the distance between the lower side of the wind direction plate 37 and the upper side of the evaporating dish 20 is In the case of 15 mm or less, the wind direction plate 37 becomes a large air path resistance, and the air volume decreases, which causes a decrease in the heat radiation amount of the condenser 18.

  Further, the position of the wind direction plate 37 in the depth direction is more forward than the center of the evaporation dish 20 in the depth direction so that the air that has passed through the condenser 18 can be reliably guided to the vicinity of the water surface in the evaporation dish 20. It is desirable to arrange.

(Embodiment 2)
4 is a longitudinal sectional view of the lower machine room of the refrigerator according to the second embodiment of the present invention, FIG. 5 is a transverse sectional view of the lower machine room of the refrigerator according to the second embodiment of the present invention, and FIG. It is a rear view of the lower machine room of the refrigerator in Embodiment 2.

  4 to 6, the lower machine chamber 16 houses a compressor 17, a condenser 18, a fan 19, and an evaporating dish 38. The lower machine chamber 16 is divided into two sections by a partition wall 21, a condenser 18 in the first section 22 on the leeward side of the fan 19, a compressor 17 in the second section 23 on the leeward side of the fan 19, and the compressor 17. The evaporating dish 38 arranged beside the housing is accommodated, and the fan 19 is attached to the partition wall 21.

  Moreover, it has the baseplate 24 which comprises the bottom face of the lower machine room 16, and the backplate 25 which comprises the back surface.

  Here, the condenser 18 is formed of a spiral fin tube in which a strip-shaped fin is wound around the refrigerant pipe, and the refrigerant pipe is spirally wound in an oval shape. And the distance (fin pitch) between refrigerant | coolant piping at the time of spirally winding refrigerant | coolant piping to an oval type is changed so that it may become small toward the leeward side.

  The refrigerator 11 has a plurality of air inlets 26 provided on the bottom plate 24, an outlet 27 provided on the back plate 25, and a spacer 28 (not shown) on the back side of the housing 12. When the back surface is pressed against the wall, the communication air passage 29 is secured from the outlet 27 of the lower machine chamber 16 by grounding the spacer 28 to the back wall.

  About the refrigerator in Embodiment 2 of this invention comprised as mentioned above, the operation | movement * effect | action is demonstrated below.

  The fan 19 is driven in conjunction with the operation of the compressor 17. By driving the fan 19, the first section 22 of the lower machine chamber 16 partitioned by the partition wall 21 becomes negative pressure, the outside air is sucked from the air inlet 26 provided in the bottom plate 24, and the second section 23 is positive pressure. Thus, the air in the lower machine room 16 is discharged to the outside from a discharge port 27 provided on the back side of the lower machine room 16.

  At this time, the air path shape in the lower machine room 16 can be simplified linearly and the air path resistance in the lower machine room 16 can be suppressed as compared with the conventional one in which the air path shape meanders in the lower machine room. In addition, since air can flow through the entire condenser 18, the heat dissipation efficiency of the condenser 18 can be improved. Moreover, evaporation of water stored in the evaporating dish 38 is promoted by drying with air heated by heat exchange with the condenser 18.

  At this time, it is preferable to make the size of the second section 23 in the width direction smaller than the size of the first section 22 in the width direction.

  Here, the width of the first section 22 and the width of the second section 23 refer to the size in the left-right direction when the refrigerator body is viewed from the front (that is, the door 13 is viewed from the front).

  As a result, the air that has passed through the condenser 18 can be efficiently used for cooling the compressor 17 via the fan 19, so that the heat dissipation capability is improved and the evaporating dish 38 is disposed beside the compressor 17. Thus, since the heat radiation of the compressor 17 can be used for the evaporation of the stored water, and the air that has passed through the condenser 18 can be guided to the vicinity of the water surface in the evaporating dish 38, the evaporation of the stored water can be promoted. it can.

  Further, a part of the refrigerant pipe may be arranged in the evaporating dish 38 to exchange heat directly with the stored water. As a result, the water temperature rises by directly exchanging heat with the high-temperature and high-pressure refrigerant immediately after leaving the compressor 17, so that evaporation of the stored water can be further promoted.

  Further, as a wind path resistance suppressing means around the fan 19, it is preferable to provide an R shape in the front bent portion 30, the rear bent portion 31 and the bent portion 32 of the bottom plate 24 in the upper part of the lower machine room 16.

  Further, it is preferable to provide the R-shaped portion 34 in the evaporating dish 38 with the fan central portion 33 as the center. This is because it is possible to suppress a reduction in the air volume of the outside air that cools the condenser 18 and to increase the heat radiation amount of the condenser 18. Further, the R size of the front side bent portion 30 is preferably about 150 mm, and the R size of the rear side bent portion 31 and the bent portion 32 of the bottom plate 24 is preferably about 50 mm. Note that the R-shaped portion of the bent portion 32 of the front side bent portion 30, the rear-side bent portion 31, and the bottom plate 24 at the upper portion of the lower machine chamber 16 and the R-shaped portion 34 of the evaporating dish 38 have a radius of the fan 19 from the fan central portion 33. It is desirable to provide the distance above. When the distance is within the radius of the fan 19, the air flow resistance around the fan 19 is increased, so that the air volume is reduced and the heat radiation amount of the condenser 18 is reduced.

  Further, the air inlet 26 is formed at least 1/2 of the front side of the bottom plate 24, preferably 1/3, and the distance between the back side of the bottom plate 24 not provided with the air inlet 26 and the floor surface is the condenser 18. It is better to make it smaller than the distance between the lower side and the floor. This is to prevent high-temperature exhaust gas from the discharge port 27 from being sucked again from the intake port 26 through the space between the bottom plate 24 and the floor surface.

  The clearance between the air inlet 26 and the floor surface should be at least 10 mm or more, preferably 20 mm or more. This is to prevent dust and dust from accumulating between the air inlet 26 and the floor and closing the air inlet 26.

  The bottom plate 24 may be molded by dividing the front side provided with the intake port 26 and the back side provided with no intake port 26.

  Further, the position of the discharge port 27 provided in the back plate 25 is preferably provided above the fan central portion 33. This is because when the outside air heat-exchanged with the condenser 18 is discharged to the back side of the housing 12 through the discharge port 27, the air is again sucked from the intake port 26 through the gap between the bottom plate 24 and the floor surface. This is to suppress this.

  Similarly, a wind direction plate 35 that directs exhaust air upward may be provided at the exhaust port 27.

  Further, the area of the air inlet 26 provided in the bottom plate 24 may be larger than the area of the outlet 27 provided in the back plate 25. This is for suppressing a significant performance degradation of the condenser 18 due to a decrease in the air volume even when a part of the air inlet 26 is blocked due to dust adhesion. The area of the intake port 26 is preferably about twice the area of the discharge port 27.

  Further, it is preferable to provide a gap preventing member between the partition wall 21 that divides the lower machine chamber 16 and the upper surface 36 on the back side of the lower machine chamber 16. This is to prevent the air on the windward side and the leeward side of the fan 19 from being short-circuited by sealing the gap between the partition wall 21 and the rear side upper surface 36 of the lower machine room 16. Moreover, it is good to use a buffer material as a clearance prevention member. This is to prevent the driving sound of the fan 19 from propagating to the upper surface 36 on the back side of the lower machine room 16 through the partition wall 21.

  Further, it is preferable to arrange a wind direction plate 39 above the evaporating dish 38. This is because the air passing through the condenser 18 is meandered downward and the air is reliably guided to the vicinity of the water surface in the evaporating dish 38, thereby improving the wind speed on the water surface and promoting the evaporation of the stored water.

  The size in the width direction of the wind direction plate 39 is equal to or greater than the size in the width direction of the evaporating dish 38 so that the air that has passed through the condenser 18 can be reliably guided to the vicinity of the water surface in the evaporating dish 38. desirable.

  Further, it is desirable that the height direction of the wind direction plate 39 is provided so that the distance between the lower side of the wind direction plate 39 and the upper side of the evaporating dish 38 is about 15 to 20 mm. When the distance between the lower side of the wind direction plate 39 and the upper side of the evaporating dish 38 is 20 mm or more, the air that has passed through the condenser 18 cannot be reliably guided to the vicinity of the water surface in the evaporating dish 38, and When the distance from the upper side of the evaporating dish 38 is 15 mm or less, the wind direction plate 39 becomes a large air path resistance, and the air volume decreases, which causes a decrease in the heat radiation amount of the condenser 18.

  Further, the position of the wind direction plate 39 in the depth direction is arranged in front of the center of the evaporating dish 38 in the depth direction so that the air passing through the condenser 18 can be surely guided to the vicinity of the water surface in the evaporating dish 38. It is desirable to do.

  As described above, the refrigerator of the present invention is installed in the lower machine room on the lee side of the condenser and the condenser, and serves as a main drive source of the blower circuit, and the compressor installed on the lee side of the fan. In the refrigerator having a partition partitioning the first compartment in which the condenser is placed and the second compartment in which the compressor and the evaporation dish are placed, the size in the width direction of the first compartment is stored. The size in the width direction of the second section is smaller than the height.

  As a result, the air that has passed through the condenser can be efficiently used for cooling the compressor via the fan, so that the heat dissipation capability is improved and the air that has passed through the condenser is guided to the vicinity of the water surface in the evaporating dish. Can evaporate the stored water.

  As described above, the refrigerator according to the present invention can efficiently use the air that has passed through the condenser for cooling the compressor, thereby improving the heat dissipation capability and promoting the evaporation of the stored water. By arranging the space-saving, it is possible to increase the size of the condenser and fan, and further improve the heat dissipation capability, so that energy can be saved. Therefore, it can be applied to other freezing and refrigeration products such as vending machines.

DESCRIPTION OF SYMBOLS 11 Refrigerator 16 Lower machine room 17 Compressor 18 Condenser 19 Fan 20, 38 Evaporating dish 21 Bulkhead 22 First division 23 Second division 24 Bottom plate 25 Back plate 26 Inlet 27 Outlet 35 Wind direction plate (Upward airflow promotion means)
37, 39 Wind direction board

Claims (9)

A condenser and a fan which is installed on the leeward side of the condenser in the lower machine room and serves as a main driving source of the blower circuit, a compressor and an evaporating dish installed on the leeward side of the condenser, and the condenser In the refrigerator having a partition partitioning the first partition in which the compressor and the evaporating dish are disposed, the width of the second partition is larger than the width of the first partition. A refrigerator with a smaller direction. The refrigerator according to claim 1, wherein air path resistance suppression means is provided on the windward side and leeward side of the fan. The refrigerator according to claim 2, wherein the air path resistance suppressing unit is provided at a distance greater than or equal to the radius of the fan from the fan central portion. 2. A bottom plate that constitutes a bottom surface of the lower machine room, and an intake port that is formed in the bottom plate and sucks outside air from below the condenser, and the intake port is disposed on the front side of the bottom plate. The refrigerator as described in any one of 1-3. The refrigerator according to any one of claims 1 to 4, wherein a distance between the back side of the bottom plate and the floor surface is made smaller than a distance between the lower side of the condenser and the floor surface. It has a back plate which constitutes the back of the lower machine room, and a discharge port formed in the back plate, and ascending air current promotion means is provided in the discharge port according to any one of claims 1 to 5. refrigerator. The refrigerator according to any one of claims 1 to 6, wherein an area of the intake port is larger than an area of the discharge port. The refrigerator according to any one of claims 1 to 7, further comprising a fan attached to the partition wall, wherein a gap prevention member is provided between the partition wall and the upper surface of the lower machine room. The refrigerator as described in any one of Claim 1 to 8 which arrange | positioned the wind direction board in the upper part of the said evaporating dish.