CN109073313B - Refrigerator with a door - Google Patents
Refrigerator with a door Download PDFInfo
- Publication number
- CN109073313B CN109073313B CN201780028483.8A CN201780028483A CN109073313B CN 109073313 B CN109073313 B CN 109073313B CN 201780028483 A CN201780028483 A CN 201780028483A CN 109073313 B CN109073313 B CN 109073313B
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- Prior art keywords
- refrigerator
- air
- machine room
- cover
- louver
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Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
Abstract
The upper surface of a machine chamber cover (42) of the refrigerator covering an upper machine chamber (36) provided on the upper portion of the rear surface of a heat insulation box body (31) is higher than the upper surface of the heat insulation box body (31), and top surface openings provided on the left and right sides of the upper surface of the upper machine chamber (36) are arranged at a position lower than the upper surface of the machine chamber cover (42).
Description
Technical Field
The present invention relates to a refrigerator structure having a machine room in an upper part of a main body.
Background
In the related art, a refrigerator of this type is provided with a vent hole in a side surface of a machine room to radiate heat from a cooling unit in the machine room (see, for example, patent document 1).
Fig. 8 is a perspective view of a conventional refrigerator viewed from above the rear surface of the machine room. As shown in fig. 8, the conventional refrigerator 100 includes a machine chamber 11 formed by recessing the rear end portion of the upper surface of a refrigerator main body 10, machine chamber side wall portions 11a located on both side surfaces of the machine chamber 11, and a cover 12 covering the machine chamber 11. A compressor 13 and a fan motor 14 are provided in the machine chamber 11. The machine chamber side wall portion 11a has a first side wall 15 and a second side wall 16 opposite to the first side wall 15, and the first side wall 15 and the second side wall 16 have a plurality of holes. With such a configuration, even if the refrigerator main body 10 is provided in close contact with the wall on the rear side, the outside air can be taken in and discharged through the holes provided in the refrigerator side surfaces (the first side wall 15 and the second side wall 16), and efficient heat dissipation of the cooling unit in the machine room 11 can be performed.
However, in the above-described conventional structure, when the refrigerator 100 is disposed close to or in contact with a side wall, heat radiation from the side is hindered, and it is difficult to obtain a reliable heat radiation effect. In particular, when the refrigerator 100 is installed in a limited space such as a kitchen, the refrigerator may be installed close to all of the walls on the left and right side surfaces and the back surface, and it is difficult to obtain a reliable heat radiation effect.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2007-17044
Disclosure of Invention
The present invention has been made in view of the above-described conventional problems, and provides a refrigerator that can suppress an increase in the temperature of air sucked into a machine room with a simple structure and efficiently dissipate heat, even when a wall is attached to the side surface and the back surface of the refrigerator.
Specifically, a refrigerator according to an embodiment of the present invention includes: a machine chamber provided at a step portion formed at an upper portion of a rear surface of the heat insulating box; a compressor and an air supply unit disposed in the machine room; a machine room cover covering an upper surface of the machine room; and opening parts respectively arranged at the left and right sides of the upper surface of the mechanical chamber. The upper surface of the machine room cover is higher than the upper surface of the heat insulation box body, and the opening is arranged at a position lower than the upper surface of the machine room cover.
According to this configuration, since the upper surface of the machine room cover is close to the ceiling of the installation space of the refrigerator and the space between the upper surface of the heat insulation box and the ceiling is large, the air passage resistance above the machine room cover is increased, and the exhaust air of the warm machine room which is desired to be raised can be guided from above the heat insulation box to the front of the refrigerator. In addition, the air in front of the refrigerator can be introduced into the machine room in preference to the air above the machine room cover. Thus, the space above the heat insulating box can be used to introduce the low-temperature outside air in front of the refrigerator into the machine room, and the heat of the compressor can be efficiently dissipated. Further, the rear surface and the side surface of the refrigerator can be disposed in contact with a wall of a house or the like, and the installation space of the refrigerator can be reduced in a limited space such as a house.
In addition, according to this configuration, even when an article is placed on the refrigerator, the article is supported by the machine room cover, and therefore the opening is less likely to be closed. Therefore, the volume of air flowing through the machine room can be ensured, and the reliability of the refrigerator can be ensured. In addition, according to this configuration, even if the height of the refrigerator is substantially the same as the height of the ceiling, the space above the heat insulating box can be used to efficiently dissipate heat from the compressor, and therefore, the reliability of the refrigerator can be ensured.
In the refrigerator according to the embodiment of the present invention, the protruding portion may be provided in front of the machine room. With this configuration, the exhaust air guided to the front of the refrigerator can be prevented from passing through the front of the machine chamber and being directly introduced into the machine chamber. This allows air at a low temperature farther from the machine chamber to be introduced into the machine chamber, thereby improving the heat dissipation efficiency of the compressor.
In the refrigerator according to the embodiment of the present invention, the control board storage portion may be disposed on the convex portion. According to this configuration, the space above the heat-insulating box can be effectively utilized, and the control board housing portion does not need to be housed in the heat-insulating box. This can improve the heat insulation efficiency of the refrigerator, and can improve the storage volume efficiency of the refrigerator. Further, since the air taken into the machine chamber and the exhaust gas from the machine chamber flow in front of the machine chamber, the heat dissipation efficiency from the periphery of the control board housing portion can be improved, and the reliability of the control board can be improved.
In addition, the protruding portion of the refrigerator according to the embodiment of the present invention may be disposed adjacent to the machine chamber. With this configuration, the area formed at a position higher than the upper surface of the heat insulation box can be minimized. This reduces the visibility of the projection from the front when the refrigerator is in use, and improves the appearance quality of the refrigerator.
In the refrigerator according to the embodiment of the present invention, the height of the upper surface of the projection and the height of the upper surface of the machine room cover may be substantially the same. With this configuration, components and the like can be disposed in the space above the heat-insulating box to the maximum extent without increasing the height of the entire refrigerator. This maximizes the volumetric efficiency of the refrigerator for the same refrigerator size. Further, since the air passage resistance above the machine room cover and the air passage resistance above the convex portion can be substantially equal to each other, air passing over the machine room cover and the convex portion can be minimized, and an increase in the temperature of the machine room can be minimized.
In the refrigerator according to the embodiment of the present invention, a louver may be provided in the opening. In addition, the louver of the refrigerator according to the embodiment of the present invention may have a plurality of guide plates inclined to send the air in the machine room to the front of the machine room. With this configuration, a forward dynamic pressure can be applied to the air discharged from the machine chamber. In addition, the air in front can be preferentially introduced into the machine room. Thus, the space above the refrigerator can be used to take in the low-temperature outside air in front into the machine room, and the heat of the compressor can be efficiently dissipated.
In addition, the upper surface of the louver of the refrigerator according to the embodiment of the present invention (the upper surface formed by the plurality of guide plates) may be inclined downward as going forward. According to this configuration, since the forward opening area is increased, the pressure loss at the time of passing through the opening portion can be minimized, the air volume can be increased, and the heat radiation of the compressor can be performed more efficiently.
In the refrigerator according to the embodiment of the present invention, the protruding wall may be provided at a part of the outer peripheral portion of the opening. According to this structure, even if the fan is installed in a direction in which air flows in the left-right direction, the air discharged from the opening portion is changed in direction to the front by colliding with the convex wall. This enables the discharge air to be more smoothly sent to the front of the refrigerator. In addition, according to this configuration, even when the upper portion of the refrigerator is viewed from the side of the refrigerator, the guide plate is less likely to be seen, and therefore, the appearance quality of the refrigerator can be improved.
Drawings
Fig. 1 is a vertical sectional view of the upper part of a refrigerator according to embodiment 1 of the present invention.
Fig. 2 is an exploded perspective view of an upper machine room of a refrigerator according to embodiment 1 of the present invention.
Fig. 3 is an exploded perspective view of the machine room cover of the refrigerator according to embodiment 1 of the present invention.
Fig. 4 is a cross-sectional view of the refrigerator according to embodiment 1 of the present invention, taken along line 4-4 in fig. 3.
Fig. 5 is a sectional view of the refrigerator according to embodiment 1 of the present invention, taken along line 5-5 in fig. 1.
Fig. 6 is a vertical sectional view of the upper part of the refrigerator according to embodiment 2 of the present invention.
Fig. 7 is a perspective view of the upper part of the refrigerator according to embodiment 2 of the present invention.
Fig. 8 is a perspective view of a conventional refrigerator viewed from above the rear surface thereof.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the following embodiments.
(embodiment mode 1)
Fig. 1 is a vertical sectional view of the upper part of a refrigerator according to embodiment 1 of the present invention. Fig. 2 is an exploded perspective view of an upper machine room of a refrigerator according to embodiment 1 of the present invention. In fig. 1, the right side is the front side of the refrigerator 30, and the left side is the back side of the refrigerator 30.
As shown in fig. 1, refrigerator 30 according to embodiment 1 of the present invention includes heat-insulated box 31. The heat insulating box 31 includes an outer box 32 mainly made of steel plate and an inner box 33 molded of resin such as ABS resin. Between the outer casing 32 and the inner casing 33 of the heat insulating box 31, a foamed heat insulating material 34 such as hard foamed polyurethane is filled as a heat insulating material, and the interior and exterior of the box are heat-insulated by the heat insulating material. The vacuum heat insulator 35 having higher heat insulating performance than the foamed heat insulator 34 is attached to the inside of the outer box 32 of the heat insulating box 31 so as to be embedded in the foamed heat insulator 34. With this structure, the heat insulating performance of the heat insulating box 31 can be further improved. The heat insulation box 31 has an upper machine chamber (machine chamber) 36 at an upper rear portion. The upper machine room 36 is disposed on a step portion formed by recessing the top rear end portion and the back upper end portion of the refrigerator 30 toward the inside of the refrigerator 30.
As shown in fig. 2, an air-cooled condenser 37, a fan 38, and a compressor 39 are provided in the upper machine room 36 in this order from the windward (near side in fig. 2). The air-cooling condenser 37 and the compressor 39 are air-cooled by driving of the fan 38.
The fan 38 is mounted to a fan fixing member 40. The fan fixing member 40 divides the air passage in the upper machine room 36 into an upstream side and a downstream side of the fan 38. Further, a bypass air passage 41 through which outside air directly sucked into the fan 38 without passing through the air-cooled condenser 37 passes is formed in an upper portion of the air-cooled condenser 37. When the air-cooled condenser 37 is clogged due to adhesion of dust, etc., the bypass air passage 41 directly supplies outside air to the fan 38. The bypass air passage 41 preferably has a space of 5 to 15mm corresponding to a height of about 10 to 15% of the air-cooled condenser 37. When the height of the bypass air duct 41 is less than 5mm (10%), the air volume is significantly reduced when the air-cooled condenser 37 is completely clogged. When the height of the bypass air duct 41 is greater than 15mm (15%), the amount of air passing through the air-cooled condenser 37 decreases, and sufficient heat dissipation capacity cannot be obtained.
In this way, refrigerator 30 has a structure in which clogging of air-cooled condenser 37 due to dust adhesion or the like is assumed. With such a configuration, reliability of refrigerator 30 can be ensured for a long period of time even in a situation where maintenance is not performed in a general household or the like.
< 1-1. Structure of mechanical chamber cover
Fig. 3 is an exploded perspective view of the machine room cover of the refrigerator according to embodiment 1 of the present invention.
As shown in fig. 2 and 3, the machine room cover 42 covering the upper machine room 36 includes: a steel plate cover 43 made of steel plate covering the central portion of the upper machine room 36, an upper wind cover 44 provided on the upstream side of the fan 38, and a lower wind cover 45 provided on the downstream side.
The windward cover 44 includes a windward resin cover 46 and windward louver (louver) 47. As shown in fig. 3, the windward resin cover 46 includes a carrying grip 48, a top surface 49, and a back surface 50. The windward louver 47 is attached to the windward resin cover 46 at a position covering the top surface portion 49. The windward resin cover 46 and the windward louver 47 are formed by, for example, injection molding. The windward louver 47 is fixed to the windward resin cover 46 by fitting, for example, claws or the like. Furthermore, the windward louver 47 may be formed of another material such as metal, and fixed to the windward resin cover 46 by screw fastening or the like as necessary.
As shown in fig. 3, upper resin cover 46 has a top opening (opening) 49a at top portion 49, and upper resin cover 46 has a rear opening 50a at rear portion 50. The outside air can be taken into the upper machine chamber 36 through the top opening 49a and the rear opening 50 a. The rear opening 50a has a plurality of slit shapes having a width of about 5mm, for example. The top surface opening portions 49a leave an area of a portion of the top surface portion 49 at a minimum to ensure the twisting and tensile strength of the top surface portion 49, each opening having a shape as large as possible. For example, as shown in fig. 3, the top opening 49a may be formed by providing four holes in a quadrangular shape in the top surface portion 49 so that the opposite sides of the outer periphery of the top surface portion 49 are joined to each other at a band-shaped portion having a width of about 15mm, or may be formed by providing four holes in a triangular shape in the top surface portion 49 so that the opposite corners of the top surface portion 49 are joined to each other. By setting the size of one side of the opening of the top opening 49a to 5mm or more, clogging of the opening by dust can be suppressed. With this configuration, performance can be ensured even if the opening is not cleaned frequently. Accordingly, although dust is caused to adhere to the inside of the upper machine chamber 36, there is no problem because reliability can be ensured by ensuring an appropriate dimension between the members as described above.
The depth side (rear side) of the top surface portion 49 and the upper side of the back surface portion 50 are recessed inward of the refrigerator 30, and a space into which a palm holding the carrying grip portion 48 enters is formed.
The lower wind cowl 45 has a substantially bilaterally symmetrical structure with the upper wind cowl 44. The leeward cover 45 includes a leeward resin cover 51 and a leeward louver (louver) 52. As shown in fig. 3, the leeward resin cover 51 includes a carrying grip 48, a top surface portion 49, and a back surface portion 50. A top opening (opening) 49a is also provided in the top portion 49 of the leeward resin cover 51, and a rear opening 50a is also provided in the rear portion 50 of the leeward resin cover 51. In refrigerator 30 of the present embodiment, ceiling opening 49a is provided on the left and right of the upper surface of upper machine room 36, which is ceiling portion 49 of upwind resin cover 46 and ceiling portion 49 of downwind resin cover 51. The leeward louver 52 is attached to the leeward resin cover 51 at a position covering the top surface portion 49.
< 1-2. shutter shape >
Fig. 4 is a cross-sectional view of the refrigerator according to embodiment 1 of the present invention, taken along line 4-4 in fig. 3. In the refrigerator 30 of the present embodiment, the windward louver 47 has a substantially bilaterally symmetric structure with the leeward louver 52, and therefore, the shape of the louver of the refrigerator 30 will be described below by taking the leeward louver 52 as an example.
As shown in fig. 4, the leeward louver 52 has a plurality of guide plates 53 aligned in parallel with each other. Each of the guide plates 53 has a shape inclined toward the front of the refrigerator 30 (that is, each of the guide plates 53 is disposed in the leeward louver 52 in a state of being inclined toward the front of the refrigerator 30 from a state of standing vertically on a horizontal plane), and are aligned with a certain interval d therebetween. Further, the interval d between the guide plates 53 is preferably about 5 mm. The distance d between the guide plates 53 is preferably large in order to minimize the pressure loss in the air passage of the leeward louver 52, but if the distance d is 5mm or more, fingers of children can enter, and therefore, the fingers may contact the blades of the high-temperature air-cooled condenser 37 or the rotating fan 38. As described above, the interval d (opening) is preferably 5mm or more from the viewpoint of suppressing clogging due to adhesion of dust. Therefore, by setting the interval d between the guide plates 53 to about 5mm, it is possible to ensure safety while ensuring performance.
Further, the guide plates 53 are disposed to be inclined forward, so that the planar projection distance d' between the guide plates 53 is set to 0 to 1mm or less. If the planar projection distance d' between the guide plates 53 is greater than 1mm, there is a possibility that the fire may spread from the inside of the upper machine room 36 to the heat insulation box 31 due to sparks flying from the outside of the refrigerator 30 during a house fire. The heat insulating box 31 made of the foamed heat insulating material 34 or the like is easily burned, and therefore, there is a possibility that damage by a house fire may increase. On the other hand, when the planar projection distance d' between the guide plates 53 is smaller than 0mm (that is, the planar projection between the guide plates 53 has a portion overlapping in the vertical direction), the forming die cannot be simply pulled out up and down, and therefore the forming cost increases.
Further, the inclination θ (see fig. 4) of the guide plate 53 in the forward direction is preferably 45 ° or less with respect to the horizontal plane. This is because, when the exhaust air of the upper machine room 36 discharged from the gap of the guide plate 53 collides with the ceiling provided in the refrigerator 30, the direction can be more smoothly changed to the front of the refrigerator 30 by reducing the angle with the horizontal direction.
As shown in fig. 4, the adjacent guide plates 53 are arranged such that the guide plate 53 on the back side of the refrigerator 30 is higher than the guide plate 53 on the front side. With this configuration of the guide plate 53, the entire upper surface of the leeward louver 52 is inclined downward as it goes forward.
As shown in fig. 3, upwind louver 47 and downwind louver 52 have a convex wall 54 on a part of the outer peripheral portion of ceiling opening 49a, and on the side surface side of refrigerator 30 in the present embodiment. The convex wall 54 has a depth length from the foremost part to the rearmost part of the guide plate 53. The upper surface of the convex wall 54 is substantially at the same height as the uppermost portion of the guide plate 53, and is substantially horizontal. The right and left outer side surfaces of the protruding wall 54 are inclined from the inner side to the outer side of the refrigerator 30, and a gentle R (rounded corner) is provided at a corner connecting the side surfaces and the upper surface. The width of the convex wall 54 is not limited as long as it has an inner dimension that is not problematic in injection molding, and is preferably as narrow as possible so that the width of the guide plate 53 can be ensured to be large.
< 1-3. height relationship of each part >
As shown by the broken line in fig. 2, the machine room cover 42 is formed by integrating the steel plate cover 43, the upwind resin cover 46, the upwind louver 47, the downwind resin cover 51, and the downwind louver 52, and is fixed to the heat insulation box 31 by screws or the like so as to cover the upper machine room 36.
In a state where the machine chamber cover 42 is attached to the heat insulation box 31, the upper surface of the steel plate cover 43 is the highest surface of the machine chamber cover 42 and is higher than the upper surface of the heat insulation box 31. The upper surface of the steel sheet cover 43, the upper surface of the conveyance holder 48, the uppermost portion of the guide plate 53, and the upper surface of the convex wall 54 are substantially the same height. The lowermost portion of the guide plate 53, the ceiling opening 49a, and the upper surface of the heat insulation box 31 are substantially the same height. The upper surface of the steel sheet cover 43 is formed to be substantially horizontal. Thereby, the guide plate 53 is configured to be depressed from the back side to the front side of the refrigerator 30 between the steel plate cover 43 and the convex wall. The width dimension of the guide plate 53 (the width dimension in the left-right direction of the refrigerator 30) is substantially the same as the width dimension of the carrying grip 48.
The ceiling opening 49a may be provided below the upper surface of the heat insulation box 31 so long as it has an appropriate size that does not collide with the components disposed in the upper machine chamber 36, or may be provided so long as it does not form a small space between itself and the guide plate 53, which increases the pressure loss, and so long as it is lifted to the position of the guide plate 53.
< 1-4. Heat insulation Box Structure
Fig. 5 is a sectional view of the refrigerator according to embodiment 1 of the present invention, taken along line 5-5 in fig. 1.
The vacuum heat insulating material 35 provided between the outer box 32 and the inner box 33 includes a back surface vacuum heat insulating material 35a attached to the back surface side of the outer box 32 and a side surface vacuum heat insulating material 35b attached to the side surface side of the outer box 32. A recess 55 provided with a step is formed at each of the right and left corners of the back surface of the outer box 32. The concave portion 55 is formed on the rear surface of the outer box 32 outside the rear vacuum heat insulating material 35a, and both left and right ends of the rear vacuum heat insulating material 35a are located outside the side surfaces of the inner box 33. The concave portion 55 is formed on the side surface side of the outer box 32 on the rear side of the side vacuum heat insulating material 35b, and the rear end of the side vacuum heat insulating material 35b is located on the rear side of the rear surface of the inner box 33.
< 1-5. Effect >
The operation and action of refrigerator 30 configured as described above will be described below.
First, the operation of the refrigerator 30 and the heat generation and exhaust of the upper machine room 36 will be described.
When the compressor 39 starts to be driven to cool the refrigerator 30, the refrigerant of the refrigeration cycle is compressed, and the refrigerant is introduced into the air-cooled condenser 37 through a discharge refrigerant pipe (not shown) connected to a discharge port of the compressor 39. Thereby, the compressor 39 and the air-cooled condenser 37 generate heat. The fan 38 is driven, the windward side of the upper machine chamber 36 becomes negative pressure, and outside air is taken into the upper machine chamber 36 through the windward louver 47 and the ceiling opening 49a or the rear opening 50a provided in the windward resin cover 46. The air-cooled condenser 37 and the compressor 39 are cooled by the taken-in air, and the air that has been heated to the contrary passes through the back opening 50a or the ceiling opening 49a provided in the leeward resin cover 51 and the leeward louver 52, and is discharged out of the upper machine room 36 again. In this way, excessive temperature increases of the air-cooled condenser 37 and the compressor 39 are suppressed, and the reliability of the refrigerator 30 is ensured.
In general, warm air has a property of flowing upward, and therefore, the air discharged to the outside of the upper machine room 36 easily flows upward. In particular, when the refrigerator 30 is installed in a limited space such as a kitchen, the left and right side surfaces and the rear surface of the refrigerator 30 may be disposed close to the wall, and warm air discharged from the upper machine room 36 is likely to be accumulated above the upper machine room 36. At this time, since the upstream side of the upper machine room 36 is negative pressure due to the driving of the fan 38, warm air staying above the upper machine room 36 is introduced into the upper machine room 36 from the upper hood 44. When the temperature of the introduced air is high, the amount of heat radiation from the air-cooled condenser 37 and the compressor 39 is reduced, and the temperature of the components is increased, which may cause a problem that reliability cannot be secured.
Next, the exhaust heat in the upper machine chamber 36 will be described.
In the present invention, a down wind louver 52 having a plurality of guide plates 53 is attached to a ceiling opening 49a provided in a down wind resin cover 51. As shown in fig. 4, the plurality of guide plates 53 are provided in the leeward louver 52 so as to be inclined forward (in a state of being inclined forward from a state of standing in the vertical direction). With this structure, a forward dynamic pressure can be applied to the air discharged from the upper machine chamber 36. This can suppress warm air from being accumulated above the upper machine room 36, and send the warm air to the front of the refrigerator 30. In addition, this can suppress introduction of warm air discharged from the upper machine room 36 into the upper machine room 36 from the upper hood, and can improve reliability of the refrigerator 30.
Similarly, a windward louver 47 having a plurality of guide plates 53 is attached above the ceiling surface opening 49a provided in the windward resin cover 46. With this configuration, the air in front of the upper hood 44 can be preferentially introduced into the upper machine chamber 36. This can suppress the introduction of air above the upper machine chamber 36 into the upper machine chamber 36. That is, it is possible to suppress the introduction of warm air discharged from the upper machine room 36 and accumulated and warm air above the upper machine room 36 heated by the steel sheet cover 43 into the upper machine room 36, and to reduce the temperature of the air-cooled condenser 37 and the compressor 39.
Further, both of the windward louver 47 and the leeward louver 52 have a shape that is inclined downward as going forward (in other words, the windward louver 47 and the leeward louver 52 have an inclination that gradually decreases from the rear side to the front side). With this configuration, the opening areas of the windward louver 47 and the leeward louver 52 can be enlarged when viewed from the front of the refrigerator 30. Therefore, according to this configuration, the pressure loss of the air flowing through the upper machine chamber 36 can be reduced, and the air volume flowing through the upper machine chamber 36 can be increased. By increasing the amount of air flowing in the upper machine chamber 36, heat dissipation from the air-cooled condenser 37 and the compressor 39 can be further promoted, the temperature of the components can be reduced, and the reliability can be further improved.
Further, by increasing the amount of air flowing in the upper machine chamber 36, the forward flow of air is dominant in front of the lower shroud 45 above the heat-insulating box 31. Accordingly, the ambient air also flows, and the warm air discharged from the rear opening 50a provided in the leeward resin cover 51 is lifted by gravity above the upper machine room 36, and then easily flows forward of the refrigerator 30 together with the air discharged from the leeward louver 52.
Further, since the lowermost portion of leeward louver 52 is at substantially the same height as the upper surface of heat-insulating box 31, air discharged from leeward louver 52 easily flows along the upper surface of heat-insulating box 31 due to the coanda effect. This can suppress the warm air from flowing upward and staying, and thus, the warm air can be returned from the upper hood 44 into the upper machine chamber 36.
Next, the operational effects of the convex wall 54 provided in each of the windward louver 47 and the leeward louver 52 will be described.
As shown in fig. 2, the fan fixing member 40 partitions the upper machine chamber 36 from left to right, and the fan 38 is installed in the upper machine chamber 36 to flow wind in the left-right direction of the refrigerator 30. Therefore, the air on the leeward side keeps the flow velocity in the left-right direction, and when discharged from the leeward louver 52, the air collides with the convex wall 54, and the lateral flow smoothly changes to the forward direction. Without the convex wall 54, the lateral flow is thus discharged in the lateral direction of the refrigerator 30. The airflow discharged in the lateral direction of refrigerator 30 collides with a wall on the side surface of the installation space of refrigerator 30, flows toward the ceiling of the installation space, stays above refrigerator 30, and is introduced again from upper hood 44 into upper machine room 36.
Further, since the plurality of guide plates 53 are provided at positions higher than the upper surface of the heat insulating box 31 in the windward louver 47 and the leeward louver 52, the guide plates 53 are visible from the side of the refrigerator 30 without the protruding wall 54, and the appearance of the refrigerator 30 is impaired. By providing the convex wall 54, the wall surface of the convex wall 54 is not visible from the side of the refrigerator 30, and the guide plate 53 is not visible, so that a clean design can be achieved.
In particular, in the case where the right and left outer side surfaces of the convex wall 54 are inclined toward the inside of the refrigerator and the gentle R (rounded corner) is provided at the corner connecting the side surface and the upper surface, the area in which the convex wall 54 can be seen when viewed from the side direction of the refrigerator 30 can be minimized, so that a more compact design can be realized.
Further, since the windward louver 47 and the leeward louver 52 have substantially bilaterally symmetrical shapes, a common member can be used as long as it can be matched with peripheral members. When the windward louver 47 and the leeward louver 52 use common members, the number of members to be managed in the assembly process can be reduced, so that the fixing cost can be reduced, and accordingly, an inexpensive commercial product can be provided.
Next, the operational effect of the height relationship of the ceiling surface arrangement components of refrigerator 30 will be described.
The upper surface of the steel plate cover 43 is substantially horizontal and is the highest surface of the machine room cover 42. The guide plate 53 is configured to sink from the back side to the front side of the refrigerator 30 between the steel plate cover 43 and the convex wall (the plurality of guide plates 53 are configured such that the guide plate 53 positioned at the front is provided below the guide plate 53 positioned at the rear, and the plurality of guide plates 53 as a whole have an inclination gradually decreasing from the rear side to the front side). As described above, warm air has a property of flowing upward, and the upper surface of the guide plate 53 is at a position lower than the upper surface of the steel plate cover 43, so that an upward force acts on the exhaust gas discharged from the leeward louver 52, and the exhaust gas also flows above the steel plate cover 43. However, the upper surface of steel sheet cover 43 (i.e., the upper surface of machine room cover 42) is close to the ceiling of the installation space of refrigerator 30, and the space between the upper surface of heat insulation box 31 and the ceiling is larger than the space between the upper surface of steel sheet cover 43 and the ceiling (see fig. 1). With this configuration, the air passage resistance above the steel sheet cover 43 is increased, and warm exhaust air that is going to rise can be guided to the upper side of the heat insulation box 31, that is, to the front side of the refrigerator 30. Even if the upper machine room 36 is windward, the same operation can introduce the air in front of the upper machine room 36 into the upper machine room 36 preferentially to the air above the steel sheet cover 43. Therefore, the heat of the compressor 39 can be efficiently dissipated by the low-temperature outside air in front of the refrigerator 30.
The guide plate 53 is provided between the steel plate cover 43 and the convex wall 54, and the guide plate 53 is provided below the steel plate cover 43 and the convex wall 54. According to this configuration, even when an article is placed on the refrigerator 30, the article is supported by the steel plate cover 43 and the convex wall 54, and the upper surface of the guide plate 53 is less likely to be clogged with the article. Therefore, according to this configuration, the volume of air flowing through the upper machine chamber 36 can be ensured, and the reliability of the refrigerator 30 can be ensured. In addition, according to this configuration, even if the height of refrigerator 30 is substantially the same as the height of the ceiling, the reliability of refrigerator 30 can be ensured by the space above heat-insulating box 31.
Next, the effect of disposing the vacuum heat insulating material 35 will be described.
As shown in fig. 5, both left and right ends of the back surface vacuum heat insulator 35a are positioned outside the side surface of the inner box 33, and the rear end of the side surface heat insulator 34b is positioned behind the back surface of the inner box 33. Therefore, substantially the entire side and back surfaces of the inner box 33 are covered with the vacuum heat insulating material 35.
In general, the vacuum heat insulating material has higher heat insulating performance than the foamed heat insulating material, and therefore, compared to a case where the foamed heat insulating material is disposed outside the vacuum heat insulating material, the effect of suppressing the heat of the outside air from entering the interior of the refrigerator 30 is greater.
In the refrigerator 30 of the present embodiment, the concave portion 55 is formed on the outer side of the rear surface vacuum heat insulator 35a of the outer box 32 and on the rear side of the side surface heat insulator 34b of the outer box 32. With this structure, the vacuum insulation material 35 can be attached to the outer box 32 without being bent or dented. This can prevent the vacuum heat insulating material 35 from being damaged or peeled off, thereby suppressing degradation in quality. Further, according to this structure, the work of attaching the vacuum heat insulating material 35 to the outer case 32 can be simplified, the number of assembling steps can be reduced, and productivity can be improved.
On the other hand, in the refrigerator 30 having heat generating components such as the compressor 39 and the air-cooled condenser 37 in the upper machine room 36, the concave portion 55 functions to convey air having a low temperature below the refrigerator 30 to the upper machine room 36. The air having a low temperature reaching the upper side of the refrigerator 30 through the recess 55 is sent into the upper machine room 36 through the rear opening 50a, and can be used for heat radiation of the compressor 39 and the air-cooled condenser 37.
In recent years, with the evolution of the distribution industry and the increase of double workers, there is a tendency to buy many foods together, and the demand for the internal volume of the refrigerator has been increasing year by year. Further, there is an increasing market demand for increasing the internal volume of the refrigerator without increasing the installation space of the refrigerator. This need can be met by enlarging the inner box 33 without enlarging the outer box 32. However, if the inner case 33 is enlarged, the sectional area of the recess 55 is further reduced.
In this regard, in refrigerator 30 of the present embodiment, as described above, the cold air for cooling upper machine room 36 can be taken into upper machine room 36 from the front side of refrigerator 30 and discharged to the front side by using the space above heat-insulating box 31. Therefore, in refrigerator 30 of the present embodiment, since air suction and air discharge are not required on the rear surface or the side surfaces of refrigerator 30, recess 55 can be reduced even if refrigerator 30 is assumed to be installed with the side surfaces and the rear surface of refrigerator 30 close to the wall of a house room or the like. Therefore, the refrigerator 30 of the present invention can increase the internal volume of the refrigerator 30 without increasing the installation space.
< summary of embodiment 1 >
As described above, refrigerator 30 according to embodiment 1 of the present invention includes: an upper machine chamber (machine chamber) 36 provided at a step portion formed at an upper portion of a rear surface of the heat insulation box 31; a compressor 39 and a fan 38 disposed in the upper machine room 36; a machine room cover 42 covering the upper machine room 36; and ceiling openings (openings) 49a provided on both left and right sides of the upper surface of the upper machine chamber 36. A windward louver (louver) 47 and a leeward louver (louver) 52 are provided in ceiling openings 49a provided on both left and right sides of the upper surface of the upper machine room 36, respectively. The upwind louver 47 and the downwind louver 52 have a plurality of guide plates 53 inclined, respectively, to send air to the front of the upper machine room 36. Specifically, the plurality of guide plates 53 are provided in the windward louver 47 and the leeward louver 52 in a state of being inclined forward in a state of rising from the vertical direction.
With this configuration, dynamic pressure toward the front of refrigerator 30 can be applied to the air discharged from upper machine chamber 36, and the air in front of refrigerator 30 can be introduced into upper machine chamber 36 preferentially to the air above upper machine chamber 36. Therefore, the space above heat insulation box 31 can be used to efficiently dissipate heat from compressor 39 by using low-temperature outside air in front of refrigerator 30. Further, according to this configuration, since refrigerator 30 can be installed with the back surface and the side surfaces of refrigerator 30 in contact with the wall, the installation space of refrigerator 30 can be reduced in a limited space such as a house.
In the refrigerator 30 of the present embodiment, the upper surfaces of the upwind louver 47 and the downwind louver 52, which are formed by the plurality of guide plates 53, are inclined downward as they go forward. With this configuration, the opening areas of upwind louver 47 and downwind louver 52 can be increased when refrigerator 30 is viewed from the front. This reduces the pressure loss of the air flowing through the upper machine chamber 36, increases the amount of air flowing through the upper machine chamber 36, and enables the compressor 39 to radiate heat more efficiently.
In addition, in refrigerator 30 of the present embodiment, protruding wall 54 is provided on the side surface of refrigerator 30 of windward louver 47 and leeward louver 52. According to this structure, even if the fan 38 is installed in such a direction that the air flows in the left-right direction of the refrigerator 30, the air collides with the convex wall 54 when being discharged from the leeward louver 52, and the lateral air flow is smoothly changed to the forward direction. This enables the discharged air to be more smoothly sent to the front of the refrigerator 30. Further, since the guide plate 53 is less likely to be seen even when the upper portion of the refrigerator 30 is viewed from the side of the refrigerator 30, the appearance quality of the refrigerator 30 can be improved.
In the refrigerator 30 of the present embodiment, the upper surface of the leeward louver 52 is located at a position lower than the upper surface of the steel sheet cover 43. With this configuration, the upper surface of the steel sheet cover 43 is close to the ceiling of the installation space of the refrigerator 30, and a large space from the heat insulation box 31 to the ceiling is provided in front of the leeward louver 52. With this configuration, the air passage resistance above the steel sheet cover 43 is relatively increased (compared to the upper side of the heat insulation box 31), and the warm exhaust air that has risen can be guided to the front of the refrigerator 30. This can suppress introduction of warm air discharged from the upper machine room 36 into the upper machine room 36 from the upper hood 44, and can improve reliability of the refrigerator 30.
In refrigerator 30 of the present embodiment, the upper surface of machine room cover 42 is higher than the upper surface of heat insulation box 31, and ceiling opening 49a is disposed at a position lower than the upper surface of machine room cover 42. With this configuration, the upper surface of machine room cover 42 is close to the ceiling of the space in which refrigerator 30 is installed, and the space between the upper surface of heat insulation box 31 and the ceiling is increased. Therefore, according to this configuration, the air passage resistance above the machine room cover 42 is increased, and the exhaust air of the warm upper machine room 36 that has risen can be guided to the front of the refrigerator 30, which is above the heat-insulating box 31. In addition, according to this configuration, the air in front of the refrigerator 30 can be introduced into the upper machine room 36 preferentially to the air above the machine room cover 42. Therefore, the space above the heat insulation box 31 allows the outside air having a low temperature in the front to be taken into the upper machine chamber 36, and the heat of the compressor 39 can be efficiently radiated. This allows the rear surface and the side surfaces of refrigerator 30 to be set so as to be in contact with the wall, and thus the installation space of refrigerator 30 can be reduced in a limited space such as a house.
In addition, according to this configuration, even when an article is placed on the refrigerator 30, the article is supported by the machine room cover 42 and the ceiling opening 49a is less likely to be closed, so that the amount of air flowing through the upper machine room 36 can be ensured, and the reliability of the refrigerator 30 can be ensured. Therefore, according to this configuration, the height of refrigerator 30, that is, the height of the ceiling is substantially the same, and the reliability of refrigerator 30 can be ensured by the space above heat-insulating box 31.
Further, an upwind louver 47 and a downwind louver 52 are provided above the ceiling opening 49 a. Each of the windward louver 47 and the leeward louver 52 has a plurality of guide plates 53 that send air to the front of the upper machine chamber 36. With this configuration, a forward dynamic pressure (toward the front of the refrigerator 30) can be applied to the air discharged from the upper machine chamber 36. In addition, according to this configuration, the air in front of the refrigerator 30 can be introduced into the upper machine chamber 36 preferentially to the air above the upper machine chamber 36. Therefore, the heat of the compressor 39 can be efficiently dissipated by the low-temperature outside air in front of the refrigerator 30.
(embodiment mode 2)
Fig. 6 is a vertical sectional view of the upper part of the refrigerator according to embodiment 2 of the present invention. Fig. 7 is a perspective view of the upper part of the refrigerator according to embodiment 2 of the present invention.
In embodiment 2 of the present invention, the same reference numerals and the same names are used for the same components and portions to which the same technical ideas as those in embodiment 1 can be applied, and detailed descriptions thereof are omitted. Further, each configuration or each function of embodiment 2 can be applied in combination with each configuration or each function of embodiment 1 as long as there is no inconvenience.
< 2-1. control substrate receiving part structure
As shown in fig. 6 and 7, refrigerator 60 according to embodiment 2 of the present invention includes control board storage section (convex section) 61 on the upper surface of heat-insulating box 31 and in front of machine room cover 42. The control board housing 61 is covered with a case member 62 mainly using a steel plate and a board cover 63. The control board housing portion 61 incorporates a board 65 fixed to a board fixing member 64 molded of resin such as pp (polypropylene).
The substrate fixing member 64 is fixed to the housing member 62 by, for example, claw fitting. The housing member 62 and the substrate fixing member 64 are attached to the outer case 32 by inserting a projection of the substrate fixing member 64 into a notch formed in the outer case 32, and are fixed to the members constituting the upper machine chamber 36 by screws. The case member 62 and the substrate cover 63 are provided to prevent the substrate 65 from spreading to the heat insulation box 31 or the house when the substrate is once ignited, and similar effects can be obtained if aluminum tape, flame retardant resin, or the like is used, even if the substrate is not a steel plate.
The housing member 62 may be integrally formed with the substrate fixing member 64 when molded with a flame-retardant resin. In this case, the number of components can be reduced.
Further, since the bottom surface of the housing member 62 is in contact with the top surface of the outer box 32, the bottom surface can be reduced as long as the gap with the outer box 32 can be adjusted to prevent the burn-in.
Conversely, the outer case 32 in which the housing member 62 is disposed may be hollowed out, and the housing member 62 may be formed as a part of the outer case 32. In this case, the control board housing 61 may be fixed so as to be partially embedded in the heat insulating box 31.
With this configuration, even when the height of the board 65 is high, the control board storage 61 can be mounted above the heat-insulating box 31 without increasing the product size.
In a state where the control board housing 61 is attached to the heat-insulating box 31, the upper surface of the board cover 63 is higher than the upper surface of the heat-insulating box 31, and the upper surface of the steel plate cover 43 of the machine chamber cover 42, the upper surface of the carrying grip 48, the uppermost portion of the guide plate 53, and the upper surface of the convex wall 54 are at substantially the same height. As in embodiment 1, the lowermost portion of the guide plate 53 and the upper surface of the heat insulation box 31 have substantially the same height. The windward louver 47 and the leeward louver 52 each formed of a plurality of guide plates 53 are formed such that the upper surface thereof is located at a height from the upper surface of the heat insulation box 31 to the upper surface of the machine chamber cover 42.
A top vacuum heat insulating material 66 is attached to the lower surface of the outer box 32 below the control board storage 61. When the control substrate storage 61 is fixed so as to be partially embedded in the heat insulating box 31, it is necessary to smooth the surface of the member directly in contact with the top surface vacuum heat insulating material 66 or to add a spacer for preventing direct contact with the top surface vacuum heat insulating material 66 so that the top surface vacuum heat insulating material 66 is not damaged by the outer box 32, the housing member 62, the substrate fixing member 64, or the like.
The rearmost portion of the control board housing 61 is adjacent to the machine chamber cover 42, and the foremost portion is provided further inward than the front surface of the heat insulating box 31. The control board housing 61 is configured such that its width (width in the left-right direction of the refrigerator 60) is substantially the same as the width of the steel sheet cover 43. The control board storage 61 is formed on the upper surface of the heat insulation box 31 at least inside the portion where the guide plate 53 is disposed.
The operation and action of refrigerator 60 configured as described above will be described below.
As in embodiment 1, the upper surface of the steel plate cover 43 is substantially horizontal and is the highest surface of the machine chamber cover 42. The guide plate 53 is configured to be depressed from the back surface side to the front surface side of the refrigerator 60 between the steel plate cover 43 and the convex wall (the plurality of guide plates 53 are configured such that the guide plate 53 positioned at the front is provided below the guide plate 53 positioned at the rear, and the plurality of guide plates 53 as a whole have an inclination gradually decreasing from the rear side to the front side). With this structure, the upper surface of steel sheet cover 43 is close to the ceiling of the installation space of refrigerator 60, and the space between the upper surface of heat insulation box 31 and the ceiling is increased. This increases the air passage resistance above the steel sheet cover 43, and allows the rising warm exhaust air to be guided to the upper side of the heat insulation box 31, i.e., to the front of the refrigerator 60. Further, the air in front of the refrigerator 60 can be introduced into the upper machine room 36 preferentially to the air above the steel plate cover 43 of the machine room cover 42. Therefore, according to such a configuration, the heat of the compressor 39 can be efficiently dissipated by the low-temperature outside air in front of the refrigerator 60.
Further, refrigerator 60 of the present embodiment has control board storage section 61 protruding upward from the upper surface of heat insulation box 31 in front of machine room cover 42. With this configuration, the exhaust gas guided to the upper surface of heat insulation box 31 in front of guide plate 53 can be prevented from passing through the front of machine chamber cover 42 and being directly introduced from windward louver 47 into upper machine chamber 36. This allows the exhaust air to be sent forward from the refrigerator 60, and the air in the front of the refrigerator 60 to be introduced into the upper machine room 36, thereby further improving the heat dissipation efficiency of the compressor 39.
The refrigerator 60 of the present embodiment is configured such that the upper surface of the substrate cover 63 and the upper surface of the steel plate cover 43 are at substantially the same height. With this configuration, the volume of the control board storage portion 61 protruding above the heat insulating box 31 can be kept maximum without increasing the height of the refrigerator 60. Therefore, the refrigerator 60 of the present embodiment can be said to have a shape that makes the most effective use of the space above the heat insulation box 31, and that is the most volume efficient. Meanwhile, in the refrigerator 60 of the present embodiment, since the gap size from the upper surface of the substrate cover 63 to the ceiling and the gap size from the upper surface of the steel sheet cover 43 to the ceiling are equal to each other, the air passage resistance above the substrate cover 63 and the air passage resistance above the steel sheet cover 43 are substantially equal to each other. This can minimize the distance between the refrigerator 60 and the ceiling, minimize the air flowing above the substrate cover 63 and the steel plate cover 43, and minimize the temperature rise in the upper machine room 36.
In this case, in the refrigerator 60 of the present embodiment, since a part or the whole of the control board housing portion 61 is formed outside the heat insulating box 31, it is not necessary to house the control board housing portion 61 in the heat insulating box 31, and the heat insulating efficiency of the refrigerator 60 can be improved. This can improve the internal volume efficiency of the refrigerator 60. Further, by removing the step of the outer box 32 below the control board housing 61, as shown in fig. 6, the top vacuum heat insulator 66 can be attached to the top surface of the outer box 32. When the refrigerator 60 is operated, the substrate 65 is energized, and the substrate 65 generates heat to increase the heat load in the refrigerator 60. Therefore, generally, the vacuum heat insulating material having higher heat insulating performance than the foamed heat insulating material is provided between the substrate 65 and the inside of the refrigerator 60, and the heat insulating efficiency can be greatly improved. Further, by disposing the control board housing portion 61 outside the heat insulating box 31, the thickness of the lower portion of the control board housing portion 61 can be increased. Even if the top vacuum heat insulator 66 is disposed on the inner surface of the outer box 32, a space through which the foamed heat insulator 34 flows can be ensured between the top vacuum heat insulator 66 and the inner box 33. With this structure, the heat insulating performance of the refrigerator 60 can be further improved, and the inner box 33 can be supported by the foamed heat insulating material 34, so that the deformation of the inner box 33 and the change in color can be suppressed, and the strength can be improved. Therefore, the quality in the interior can be improved, and the components such as the air passages and the shelves in the interior can be easily attached, and the deformation of the heat insulating box 31 can be suppressed.
Further, since the air taken into the upper machine chamber 36 by the action of the fan 38 and the exhaust gas from the upper machine chamber 36 flow in front of the upper machine chamber 36, heat transfer on the surface of the control substrate housing portion 61 is promoted, heat dissipation efficiency can be improved, and reliability of the substrate 65 can be improved.
Further, the control board housing 61 is provided so that the rearmost portion thereof is adjacent to the machine room cover 42, and thus the control board housing 61 can be disposed so that the position of the foremost portion of the control board housing 61 is located at the most deep side of the refrigerator 60. In the refrigerator 60 of the present embodiment, the foremost portion of the control board storage portion 61 is provided further inward than the front surface of the heat insulating box 31, and it is possible to reduce the possibility that the user of the refrigerator 60 will see the control board storage portion 61 when standing on the front surface of the refrigerator 60 to open the door. This can improve the appearance quality of the refrigerator 60.
In the refrigerator 60 of the present embodiment, the control board housing portion 61 is configured to have a width substantially equal to the width of the steel sheet cover 43. The control board storage 61 is formed at least on the inner side of the portion where the guide plate 53 is disposed on the upper surface of the heat insulating box 31. With this configuration, the visibility of the control board storage section 61 from the side of the refrigerator 60 can be reduced.
The guide plate 53 is a space in which cooling air flows in the upper machine chamber 36. Therefore, when the control board storage 61 is provided in front of the guide plate 53, the air passage is blocked, the air volume flowing in the upper machine chamber 36 is reduced, and the heat dissipation performance is lowered. Therefore, by disposing the control board housing 61 on the top surface of the outer box 32 of the heat insulating box 31 at a portion inside the portion where the guide plate 53 is disposed, a reduction in air volume can be suppressed, and heat dissipation performance can be ensured.
Industrial applicability of the invention
As described above, the present invention provides a refrigerator capable of effectively taking in outside air into a machine room using an upper space of the refrigerator and discharging exhaust air from the machine room to a front side of the refrigerator. Therefore, the present invention can be widely applied to industrial facilities and the like in which a heating element is cooled by forced air cooling, as typified by a refrigerator for home use and business use.
Description of the reference numerals
30. 60 refrigerator
31 Heat insulation box
32 outer box
33 inner box
34 foamed thermal insulation material
35 vacuum heat insulating material
35a vacuum heat insulating material on the back surface
35b side vacuum insulation Material
36 Upper mechanical chamber (mechanical chamber)
37 air-cooled condenser
38 blower
39 compressor
40 blower fixing part
41 bypass air passage
42 mechanical chamber cover
43 Steel plate cover
44 upper wind cover
45 lower wind cover
46 upwind resin cover
47 windward shutter
48 grip for conveyance
49 top surface part
49a Top opening part (opening part)
50 back side part
51 downwind resin cover
52 downwind shutter
53 guide plate
54 convex wall
55 concave part
61 control substrate storage part (convex part)
62 outer housing part
63 substrate cover
64 substrate fixing member
65 base plate
66 top surface vacuum insulation material.
Claims (6)
1. A refrigerator, comprising:
a machine chamber provided at a step portion formed at an upper portion of a rear surface of the heat insulating box;
a compressor and an air supply unit disposed in the machine room;
a machine room cover covering an upper surface of the machine room; and
opening parts respectively arranged at the left and right sides of the upper surface of the mechanical chamber,
the upper surface of the machine room cover is higher than the upper surface of the heat insulation box body,
the opening is disposed at a position lower than the upper surface of the machine chamber cover,
a louver is arranged at the opening part,
the louver has a plurality of guide plates inclined to send air in the machine room to the front of the machine room,
the upper surface of the louver is inclined downward as going forward.
2. A refrigerator as claimed in claim 1, wherein:
a projection is provided in front of the machine chamber.
3. A refrigerator as claimed in claim 2, wherein:
a control board housing section is disposed in the projection section.
4. A refrigerator as claimed in claim 2, wherein:
the projection is disposed adjacent to the machine chamber.
5. A refrigerator as claimed in claim 2, wherein:
the height of the upper surface of the projection and the height of the upper surface of the machine room cover are substantially the same.
6. The refrigerator according to any one of claims 1 to 5, wherein:
a protruding wall is provided at a part of the outer periphery of the opening.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016096656A JP6675058B2 (en) | 2016-05-13 | 2016-05-13 | refrigerator |
| JP2016096655A JP2017203602A (en) | 2016-05-13 | 2016-05-13 | refrigerator |
| JP2016-096656 | 2016-05-13 | ||
| JP2016-096655 | 2016-05-13 | ||
| PCT/JP2017/017442 WO2017195747A1 (en) | 2016-05-13 | 2017-05-09 | Refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109073313A CN109073313A (en) | 2018-12-21 |
| CN109073313B true CN109073313B (en) | 2020-10-27 |
Family
ID=60267942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780028483.8A Active CN109073313B (en) | 2016-05-13 | 2017-05-09 | Refrigerator with a door |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109073313B (en) |
| WO (1) | WO2017195747A1 (en) |
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|---|---|---|---|---|
| CN101586900A (en) * | 2004-03-17 | 2009-11-25 | 松下电器产业株式会社 | Refrigerator |
| JP2011202859A (en) * | 2010-03-25 | 2011-10-13 | Panasonic Corp | Refrigerator |
| CN102947658A (en) * | 2010-06-23 | 2013-02-27 | 松下电器产业株式会社 | Refrigerator |
| JP2013195030A (en) * | 2012-03-22 | 2013-09-30 | Toshiba Corp | Refrigerator |
| CN103703331A (en) * | 2011-07-22 | 2014-04-02 | 松下电器产业株式会社 | Refrigerator |
| CN103827609A (en) * | 2011-09-26 | 2014-05-28 | 松下电器产业株式会社 | Refrigerator |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4552800B2 (en) * | 2005-08-02 | 2010-09-29 | パナソニック株式会社 | refrigerator |
| JP2007040599A (en) * | 2005-08-03 | 2007-02-15 | Matsushita Electric Ind Co Ltd | Refrigerator |
| JP2007064593A (en) * | 2005-09-02 | 2007-03-15 | Matsushita Electric Ind Co Ltd | Refrigerator |
| JP2007187328A (en) * | 2006-01-11 | 2007-07-26 | Hitachi Appliances Inc | Refrigerator |
| JP2008106967A (en) * | 2006-10-24 | 2008-05-08 | Matsushita Electric Ind Co Ltd | Refrigerator |
| JP4911141B2 (en) * | 2007-12-27 | 2012-04-04 | パナソニック株式会社 | refrigerator |
| JP2015031498A (en) * | 2013-08-07 | 2015-02-16 | パナソニック株式会社 | Refrigerator |
-
2017
- 2017-05-09 WO PCT/JP2017/017442 patent/WO2017195747A1/en active Application Filing
- 2017-05-09 CN CN201780028483.8A patent/CN109073313B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101586900A (en) * | 2004-03-17 | 2009-11-25 | 松下电器产业株式会社 | Refrigerator |
| JP2011202859A (en) * | 2010-03-25 | 2011-10-13 | Panasonic Corp | Refrigerator |
| CN102947658A (en) * | 2010-06-23 | 2013-02-27 | 松下电器产业株式会社 | Refrigerator |
| CN103703331A (en) * | 2011-07-22 | 2014-04-02 | 松下电器产业株式会社 | Refrigerator |
| CN103827609A (en) * | 2011-09-26 | 2014-05-28 | 松下电器产业株式会社 | Refrigerator |
| JP2013195030A (en) * | 2012-03-22 | 2013-09-30 | Toshiba Corp | Refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017195747A1 (en) | 2017-11-16 |
| CN109073313A (en) | 2018-12-21 |
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