Refrigerator

Abstract

The utility model relates to a refrigerated storage. The refrigerated storage (1) in the embodiment (1) includes: cold air outlet (lower side cold air outlet (25b)) for blowing out cold air to freezing chamber (9), the first freezing chamber container (lower freezing chamber container (16)) of the upper surface opening of freezing chamber (9) is arranged, and the cold air guide part (50) formed in the first freezing chamber container. The refrigerated storage (1) is configured with the cold air guide part (50) in the position corresponding to the back surface part and the bottom surface part of the first freezing chamber container and the back surface part and the bottom surface part with the gap, forms the cold air guide channel (60) of the cold air flowing from the back surface part to the bottom surface part through the gap.

Description

Technical Field

[0001] This utility model relates to a cold storage. Background Technology

[0002] Patent document 1 describes a cold storage room in which cold air supplied by a blower passes through a guide channel and blows cold air inward from multiple holes provided inside the storage container.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2004-232879 Utility Model Content

[0006] This invention provides a cold storage that can suppress freeze-burn (freezing spoilage) caused by food drying by reducing the temperature difference between the air temperature inside the freezer container and the surface temperature of the food.

[0007] One embodiment of the cold storage of this utility model includes: a cold air outlet for blowing cold air into a freezer compartment; a first freezer compartment container with an opening on the upper surface of the freezer compartment; and a cold air guiding component formed in the first freezer compartment container. The cold air guiding component is disposed with a gap between itself and the back and bottom surfaces of the first freezer compartment container at a position corresponding to the back and bottom surfaces, forming a cold air guiding channel through which cold air flows from the back to the bottom surfaces.

[0008] In one embodiment of the present invention, the cold storage can also be configured such that the cold air guiding channel is not formed in the portion corresponding to the left and right sides and the front surface of the first freezing chamber container.

[0009] In one embodiment of the present invention, the cold storage can also be configured such that the cold air guiding component is formed inside the first freezer container, and the upper end of the cold air guiding component protrudes upward beyond the rear periphery of the portion forming part of the opening periphery of the upper surface of the first freezer container.

[0010] In one embodiment of the present invention, the cold storage can also be configured such that the upper end is formed by bending inward toward the inside of the first freezing chamber container.

[0011] In one embodiment of the present invention, the cold storage can also be configured such that a second cold storage container is located above the first cold storage container, and the upper end is located below the second cold storage container.

[0012] In one embodiment of the present invention, the cold storage can also be configured such that the cold air guiding component is detachable from the first freezer compartment container.

[0013] In one embodiment of the present invention, the cold storage can also be configured such that a plurality of protrusions and recesses are formed on the bottom surface in the front-rear direction of the first freezing chamber container, and the recesses constituting the protrusions and recesses constitute the cold air guiding channel.

[0014] One aspect of this invention relates to a cold storage facility that, by reducing the temperature difference between the air temperature inside the freezer container and the surface temperature of the food, can suppress freezing burn caused by food drying. Attached Figure Description

[0015] Figure 1 This is a longitudinal cross-sectional view of the cold storage in Implementation Method 1.

[0016] Figure 2 This is a diagram showing the perimeter of the freezer and cooling chambers in Embodiment 1.

[0017] Figure 3 This is an enlarged view of the lower freezer compartment container and the area around the lower cold air outlet in Embodiment 1.

[0018] Figure 4 This is a front longitudinal section view of the upper freezer container and the lower freezer container in Embodiment 1.

[0019] Figure 5 This is a perspective view showing the state in which the lower freezer compartment container in Embodiment 1 is equipped with a cold air guiding component.

[0020] Figure 6 This is a schematic diagram of the cold air flow around the freezer and cooler in Embodiment 1.

[0021] Figure 7 This is a graph showing the results of fluid analysis of the cold air in the comparative example.

[0022] Figure 8 This is a graph showing the results of fluid analysis of the cold air surrounding the upper and lower freezer containers in Embodiment 1.

[0023] Figure 9 This is a cross-sectional view of the main parts of the upper and lower freezer containers in Embodiment 1.

[0024] Figure 10 This is a perspective view of the air conditioning guide component in Embodiment 2.

[0025] Figure 11 This is an enlarged view of the main part of the air conditioning guide component in Embodiment 2.

[0026] Figure 12 This is a graph showing the results of fluid analysis of the cold air around the lower freezer compartment container in Embodiment 2.

[0027] Figure 13 This is a top view of the main part of the lower freezer compartment container in Embodiment 2.

[0028] Figure 14 This is a top view of the other main parts of the lower freezer compartment container in Embodiment 2.

[0029] Figure 15 This is a schematic diagram of the cold air flow around the freezer and cooler in Embodiment 2.

[0030] Explanation of reference numerals in the attached figures

[0031] 1. Cold storage; 2. Insulated enclosure; 3. Outer casing

[0032] 4. Inner box; 5. Foamed insulation material; 6. Refrigerated compartment

[0033] 7. Switching compartment; 9. Freezer compartment; 10. Vegetable compartment

[0034] 11. Refrigerated compartment door; 12. Switching compartment door; 13. Switching compartment container section

[0035] 14. Freezer door; 15. Upper freezer container (second freezer container)

[0036] 15c Bottom surface; 16 Lower freezer compartment container (first freezer compartment container)

[0037] 16a Upper surface opening perimeter

[0038] 16b Rear side; 16c Bottom side; 16d Rear periphery

[0039] 16e Front surface; 16f Left and right side surfaces; 16g Concave and convex parts

[0040] 17. Vegetable storage room door; 18. Vegetable storage room containers; 19. Cooling room

[0041] 20 Cooler; 21 Fan; 23 Compressor

[0042] 25a upper side air outlet

[0043] 25b lower side air outlet

[0044] 25c Cold air return vent; 30 Front surface opening; 31 Side opening.

[0045] 50 Air conditioning guide component; 50a Upper end; 50b Protrusion

[0046] 50c rib; 50d opening; 50e lower end

[0047] 50F air conditioning guide component rear section

[0048] 50g air conditioning guide component bottom surface

[0049] 50h air inlet; 50j lower edge; 50k bottom air outlet.

[0050] 50m upper surface; 60 cold air guiding channel; 70 partition wall

[0051] A1 blows out a cool airflow; A2 blows out a cool airflow above; A3 blows out a cool airflow below.

[0052] A4 returns cold air; B1 returns cold air; B2 returns cold air to the upper surface. Detailed Implementation

[0053] The following describes a specific embodiment of the present invention with reference to the accompanying drawings. However, sometimes unnecessary details may be omitted. For example, detailed descriptions of known matters or repeated descriptions of substantially the same structure may be omitted.

[0054] Furthermore, the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present invention, and are not intended to limit the scope of the present invention.

[0055] (Implementation Method 1)

[0056] Next, use Figures 1 to 8 Description of Implementation Method 1.

[0057] (1-1. Structure)

[0058] (1-1-1. Structure of a cold storage room)

[0059] Figure 1 This is a longitudinal cross-sectional view of the cold storage 1 in Implementation Method 1.

[0060] In this instruction manual, for cold storage 1, the terms "front and back" and "left and right" are used interchangeably. Figure 1 It is used based on cold storage room 1. That is, based on Figure 1 The left and right sides correspond to the front and back of cold storage 1 for explanation. Additionally, using... Figure 1 The front side corresponds to the right side of cold storage 1. Figure 1 The inside side corresponds to the left side of the cold storage 1. Additionally, when referring to the front surface of the cold storage 1, it is sometimes called the front side. Furthermore, when referring to the rear surface of the cold storage 1, it is sometimes called the back side.

[0061] exist Figure 1In this cold storage 1, there is an insulated enclosure 2. The insulated enclosure 2 mainly includes: an outer box 3 made of steel plate; an inner box 4 made of resin such as ABS (Acrylonitrile Butadiene Styrene); and a foamed insulation material 5 such as rigid polyurethane foam that is foamed and filled in the space between the outer box 3 and the inner box 4.

[0062] The insulated box 2 is insulated from the surroundings and divided into multiple storage rooms.

[0063] A refrigerator compartment 6 is located at the top of the insulated enclosure 2. Below the refrigerator compartment 6, a switching compartment 7 and an ice-making compartment (not shown) are separated by an insulated wall and arranged side by side in the left-right direction. Below the switching compartment 7 and the ice-making compartment is a freezer compartment 9. Below the freezer compartment 9, at the bottom of the insulated enclosure 2, is a vegetable compartment 10.

[0064] The indoor temperature of the cold storage compartment 6 is usually set to 1℃~5℃.

[0065] The indoor temperature of the switching chamber 7 is set to -18℃ to 5℃, which can switch from the freezing temperature range to the refrigeration temperature range.

[0066] The temperature of the freezer compartment 9 is usually set to -22℃ to -15℃, but in order to improve the freezing and preservation conditions, it is sometimes set to a low temperature of -30℃ or -25℃.

[0067] The vegetable compartment 10 is set to a temperature of 2°C to 7°C, which is the same as or slightly higher than that of the refrigerator compartment 6.

[0068] A hinged refrigerator door 11 is provided at the opening on the front surface of the refrigerator compartment 6, and a gasket (not shown) is used to seal the refrigerator door 11 and the opening on the front surface.

[0069] Additionally, a drawer-type switching chamber door 12 and a drawer-type ice-making chamber door (not shown) are provided at the front surface openings of the switching chamber 7 and the ice-making chamber, and are sealed with gaskets (not shown). When the switching chamber door 12 is pulled forward, the switching chamber container section 13 with the upper surface opening is simultaneously pulled out.

[0070] In addition, a drawer-type freezer door 14 is provided at the front opening of the freezer compartment 9, and the freezer door 14 is sealed to the front opening with a gasket (not shown).

[0071] Inside the freezer compartment 9, there are two layers, an upper freezer compartment container 15 (second freezer compartment container) and a lower freezer compartment container 16 (first freezer compartment container), each with an opening on its upper surface. The upper freezer compartment container 15 is configured such that, while placed on the periphery 16a of the opening on the upper surface of the lower freezer compartment container 16, both the upper freezer compartment container 15 and the lower freezer compartment container 16 are pulled out in conjunction with a pull-out action toward the front of the freezer compartment door 14.

[0072] In addition, a drawer-type vegetable compartment door 17 is provided at the opening on the front surface of the lowest vegetable compartment 10, and the vegetable compartment door 17 is sealed to the front surface opening with a gasket (not shown).

[0073] A vegetable compartment container 18 with an opening on its upper surface is provided inside the vegetable compartment 10, and is configured to be pulled out in conjunction with the pull-out action of the vegetable compartment door 17.

[0074] Figure 2 This is a diagram showing the periphery of the freezer compartment 9 and the cooling compartment 19 in Embodiment 1.

[0075] A cooling chamber 19 for generating cold air is located behind the freezer compartment 9. A cooler (evaporator) 20 for forming a refrigeration cycle is installed inside the cooling chamber 19. A compressor 23 for forming a refrigeration cycle is located at the upper rear of the refrigerator compartment 6 (see reference). Figure 1 The compressor 23, condenser (not shown), expansion mechanism, and cooler 20 are connected by refrigerant piping to form a refrigeration cycle.

[0076] The cold storage 1 is configured to cool the refrigerant to a specified temperature by discharging the refrigerant from the compressor 23 and circulating it in the refrigeration cycle, and to exchange heat with the internal air of the cooler 20 and the cooling chamber 19, thereby generating cold air inside the cooling chamber 19.

[0077] The cold storage 1 has an air supply fan 21 installed in the space above the cooler 20 (see reference). Figure 1 The cold storage 1 uses the operation of the blower fan 21 to send the air that has undergone heat exchange in the cooler 20 to the cold storage compartment 6, the switching compartment 7, the ice making compartment, the freezing compartment 9, and the vegetable compartment 10. The amount of cold air supplied is regulated and controlled to cool each compartment to the specified temperature.

[0078] (1-1-2. Structure of the freezer compartment and its surrounding area)

[0079] like Figure 2As shown, a partition wall separating the freezer compartment 9 from the cooling compartment 19 is provided on the rear side of the freezer compartment 9. An upper cold air outlet 25a and a lower cold air outlet 25b are formed on the partition wall, connecting the cooling compartment 19 and the freezer compartment 9. That is, the upper cold air outlet 25a and the lower cold air outlet 25b blow cold air into the freezer compartment 9. In this embodiment, the upper cold air outlet 25a and the lower cold air outlet 25b are arranged as a pair, one above the other.

[0080] The upper freezer container 15 is supported in a manner that allows it to be pulled forward, with the upper surface opening periphery 16a of the lower freezer container 16 resting on it.

[0081] The upper cold air outlet 25a is located above the upper freezer compartment container 15. The upper cold air outlet 25a is configured to blow cold air B1 forward in a generally horizontal direction. The upper cold air outlet 25a is also configured to blow cold air slightly downward. The upper surface opening of the upper freezer compartment container 15 is covered by the upper surface cover, and the cold air B1 blown from the upper cold air outlet 25a flows as the upper surface cold air flow B2 along the upper surface of the upper surface cover.

[0082] Figure 3 It is Figure 2 A magnified view of the lower freezer compartment container 16 and the area around the lower cold air outlet 25b.

[0083] The lower freezer compartment container 16 has a back side portion 16b forming the back side and a bottom side portion 16c forming the bottom side. Inside the lower freezer compartment container 16, a cold air guiding member 50 is arranged substantially parallel to the back side portion 16b and the bottom side portion 16c, and a gap (space) is provided between the back side portion 16b and the bottom side portion 16c and the cold air guiding member 50. The gap may be provided relative to the entire surface of the cold air guiding member 50 or relative to a portion of the cold air guiding member 50.

[0084] The air conditioning guide components 50 are arranged with gaps of approximately 5 to 15 mm. Figure 3 When viewed in cross-section, it is bent into a roughly L-shape.

[0085] The air conditioning guide component 50 consists of a back part 50f and a bottom part 50g formed by bending (see reference). Figure 6 It can be composed of one component, but it can also be that the rear part 50f of the air-cooling component and the bottom part 50g of the air-cooling component are composed of different components and connected together.

[0086] According to the above structure, a cold air guiding channel 60, consisting of a cold air guiding component 50, a back surface portion 16b, and a bottom surface portion 16c, is formed inside the lower freezer compartment container 16, connecting the back surface and the bottom surface. A portion of the cold air blown out from the lower cold air outlet 25b flows from the upstream back surface to the downstream bottom surface through the cold air guiding channel 60. That is, the cold air flows from the back surface portion 16b to the bottom surface portion 16c through the aforementioned gap. An opening 50d is formed at the lower end portion 50e of the cold air guiding component 50, which opens into the lower freezer compartment container 16 (see reference). Figure 6 ), which is located on the front surface 16e of the lower freezer compartment container 16 (refer to Figure 5 Near the cold air guide channel 60, the cold air guide component 50 is formed between the back part 16b and the bottom part 16c of the lower freezer container 16, and is not formed in the part corresponding to the left and right side parts 16f and the front surface part 16e.

[0087] A rear peripheral portion 16d is formed on the upper edge of the back portion 16b of the lower freezer compartment container 16, which constitutes part of the peripheral portion 16a of the upper surface opening.

[0088] The upper end portion 50a of the cold air guiding component 50 is formed to protrude upward from the rear peripheral portion 16d and is located below the bottom portion 15c of the upper freezer container 15.

[0089] Additionally, the upper region of the air conditioning guide component 50, including the upper end portion 50a, forms a protrusion 50b as a bent portion. Figure 3 In the middle, the protrusion 50b is located above the rear peripheral portion 16d, but it is also possible that a portion of it is located below the rear peripheral portion 16d.

[0090] The protrusion 50b is formed as a bent portion that bends from the upstream end of the rear end 50f of the cold air guiding member 50, which is opposite to the rear end 16b, toward the inside (front) of the lower freezer compartment container 16, that is, toward the front of the freezer compartment door 14. In other words, the upper end 50a is formed by bending toward the inside of the lower freezer compartment container 16.

[0091] In addition, the lower air outlet 25b is located behind the lower freezer compartment container 16, above the rear periphery 16d, and is positioned approximately opposite to the rear of the protrusion 50b.

[0092] Below the lower cold air outlet 25b, a cold air return port 25c communicating with the cooling chamber 19 is formed. The cold air return port 25c is provided corresponding to the lower back of the lower freezer container 16.

[0093] Figure 4This is a front longitudinal section view of freezer compartment 9 (upper freezer container 15 and lower freezer container 16).

[0094] like Figure 4 As shown, a rib 50c is formed on the air guiding component 50 opposite to the bottom surface 16c. Figure 4 The air-guiding component 50 opposite the rear part 16b (not shown in the figure) also has ribs 50c, which can ensure a gap of a specified size and form an air-guiding channel 60.

[0095] The height of rib 50c can also be changed so that the gap between the air guiding component 50 and the back part 16b is larger than the gap between the air guiding component 50 and the bottom part 16c. The air branches of the lower air outlet 25b are upper airflow A2 and lower airflow A3 (see reference). Figure 3 At this time, by increasing the gap between the back part 16b of the lower cold airflow A3 flowing to the upstream side of the cold air guide channel 60 and the cold air guide component 50, the turbulence of the cold airflow near the branch can be suppressed, so that it flows smoothly to the cold air guide channel 60.

[0096] In addition, by reducing the gap between the cold air guiding component 50 and the bottom part 16c, the internal volume of the lower freezer container 16 can be increased, thereby increasing the storage capacity.

[0097] Figure 5 This is a perspective view showing that a cold air guiding component 50 is provided in the lower freezer compartment container 16. Multiple front surface openings 30 are provided on the front surface portion 16e of the lower freezer compartment container 16, and multiple side openings 31 are provided on the left and right side portions 16f. Furthermore, the cold air guiding component 50 can be detached from the lower freezer compartment container 16.

[0098] Figure 6 This is a schematic diagram of the cold airflow around the freezer compartment 9 and the cooler 20. Figure 6 Indicates will Figure 5 The lower freezer compartment container 16 is located in the freezer compartment 9, which controls the flow of cold air from each freezer compartment container 15, 16 when the drawer-type freezer compartment door 14 is closed.

[0099] The lower cold airflow A3 and the upper cold airflow A2 flowing in the cold air guiding channel 60 are discharged to the outside from the inside of the lower freezer compartment 16 and from the front surface opening 30 communicating with the outside of the lower freezer compartment 16. In addition, the cold air inside the lower freezer compartment 16 is discharged to the outside from the side opening 31. The cold air discharged to the outside of the lower freezer compartment 16 flows to the cold air return port 25c as return cold air A4.

[0100] (1-2. Actions, etc.)

[0101] Next, the operation of the cold storage 1 in Embodiment 1 will be explained.

[0102] In this embodiment, the cold storage 1 drives the compressor 23 to circulate the refrigerant in the refrigeration cycle, and uses the cooler 20 to exchange heat with the internal air of the cooling chamber 19, thereby generating cold air. The cold storage 1 drives the blower fan 21, and through the operation of the blower fan 21, the air that has undergone heat exchange in the cooler 20 is delivered to the cold storage chamber 6, the switching chamber 7, the ice-making chamber, the freezing chamber 9, and the vegetable chamber 10. The amount of cold air delivered is regulated and controlled to cool each chamber to a specified temperature.

[0103] At this time, as Figure 2 As shown, in the freezer compartment 9, cold air is blown out from the upper cold air outlet 25a along the upper surface of the upper surface cover of the upper freezer compartment container 15, as indicated by the arrow.

[0104] In addition, the cold airflow A1 is blown out from the lower cold air outlet 25b toward the lower freezer container 16.

[0105] Figure 7 This is a comparative example, showing the analysis results of cold air flow in the prior art without the cold air guiding component 50. Because there is no cold air guiding component 50, the cold air flow is not a stable flow like the upper cold airflow A2 and the lower cold airflow A3, but rather a turbulent flow with many irregular and fluctuating airflows. Furthermore, there is a greater amount of cold air flowing downwards into the freezer compartment 16.

[0106] and Figure 8 This is the analysis result of the cold air flow in Embodiment 1, which forms the cold air guiding component 50. (Compared to...) Figure 7 In contrast, the cold airflow A1 that hits the protrusion 50b of the cold air guiding component 50 is split into an upper cold airflow A2 and a lower cold airflow A3, which are stable airflows that do not contain irregular and fluctuating airflows.

[0107] like Figure 8 As shown, the upper cold airflow A2 leaves the cold air guiding component 50 from the upper end 50a, hits the bottom part 15c of the upper freezer compartment container 15, and flows along the bottom part 15c towards the front of the refrigerator 1 (towards the freezer door 14). The upper cold airflow A2 flows from the periphery 16a of the upper surface opening on the side of the freezer door 14 of the lower freezer compartment container 16 to the outside of the lower freezer compartment container 16, or from the front surface opening 30 to the outside of the lower freezer compartment container 16. In addition, a portion of the cold air entering the lower freezer compartment container 16, such as... Figure 8 As shown, the cold air, which becomes a vortex when it encounters the front surface 16e, circulates inside the lower freezer compartment 16.

[0108] The cold airflow A2 from above flows out of the container through the opening 30 on the front surface, or as... Figure 6 As shown, the airflow merges with the cold airflow B2 on the upper surface, and through the cold air return port 25c, it undergoes heat exchange in the cooler 20 in the cooling chamber 19, and then flows to each storage chamber again through the operation of the blower fan 21.

[0109] Additionally, the downward flow of cold air A3, which is diverted downward upon encountering the protrusion 50b, flows through the cold air guiding channel 60 via the cold air guiding component 50, along the back portion 16b, and then along the bottom portion 16c to the vicinity of the front surface portion 16e of the lower freezer compartment container 16. The downward flow of cold air A3 opens into the lower freezer compartment container 16 at the lower end 50e of the cold air guiding component 50, and flows out to the outside of the lower freezer compartment container 16 from the front surface opening 30. The downward flow of cold air A3 to the outside, as returning cold air A4, undergoes heat exchange in the cooler 20 within the cooling chamber 19 via the cold air return port 25c, and then flows again to each storage compartment by the operation of the blower fan 21.

[0110] Thus, the upward cold airflow A2, flowing along the bottom surface 15c of the upper freezer compartment 15, flows near the periphery 16a of the opening on the upper surface of the lower freezer compartment 16 as cold air flowing horizontally from the rear to the front of the lower freezer compartment 16. Meanwhile, the downward cold airflow A3 flows from the back surface 16b of the lower freezer compartment 16 in the cold air guide channel 60 formed on the bottom surface 16c. The cold storage 1 is able to divert most of the cold air from the blown-out cold airflow A1 into the upward cold airflow A2 and the downward cold airflow A3, thus controlling their flow.

[0111] The upper cold airflow A2 flows along the bottom surface 15c of the upper freezer container 15 with almost no penetration into the depths of the lower freezer container 16. Meanwhile, the lower cold airflow A3 flows within the cold air guiding channel 60. Therefore, temperature fluctuations within the lower freezer container 16 can be suppressed, and food drying caused by cold air can be prevented. Furthermore, although some cold air enters the lower freezer container 16, as... Figure 8 As shown, the stable airflow of the upper cold airflow A2 is larger than the irregular cold airflow flowing into the lower freezer compartment container 16. Therefore, even if the cold air enters the interior, it rarely penetrates deep into the bottom of the lower freezer compartment container 16, becoming a vortex-like airflow that merges with the upper cold airflow A2, or flows outward from the side opening 31, etc.

[0112] Furthermore, even if moisture enters the lower freezer container 16 when food is stored in it or when the freezer door 14 is opened, the moisture and cold air flow together with the cold air from above (A2) to the outside of the lower freezer container 16, thus achieving dehumidification.

[0113] In addition, the cold airflow A3 flows through the back part 16b and bottom part 16c of the lower freezer container 16, indirectly cooling the food.

[0114] Thus, the technical concept of the cold storage 1 differs from that of actively introducing cold airflow A3 from below into the lower freezer container 16, allowing the cold air to directly contact the stored food and cool it. Generally, due to the temperature of the vegetable compartment 10 in the refrigeration temperature zone below the freezer 9, the external heat load from the heaters (not shown) embedded in the partition wall 70, and the external space, the temperature difference between the lower side and the upper side of the lower freezer container 16 may become large. In response, the cold storage 1 can suppress this temperature difference, thus reducing frost formation on the food caused by the temperature difference. Furthermore, since the cold air does not directly contact the food, it can reduce drying caused by sublimation.

[0115] Furthermore, by further generating an upward cold airflow A2, the cold storage 1 can suppress the cold air entering the lower freezer container 16 from above, thereby reducing the temperature difference within the lower freezer container 16. Additionally, by suppressing the cold air directly expelled into the lower freezer container 16, the cold storage 1 can reduce frost formation on food and container surfaces, as well as food drying caused by sublimation, thus maintaining the quality and flavor of the food.

[0116] Furthermore, the cold storage 1 employs the following structure: the protrusion 50b of the cold air guiding component 50, which forms the cold air guiding channel 60, is formed into a bent shape, with the upper end 50a located below the bottom surface 15c of the upper freezer container 15. This allows most of the blown cold airflow A1 to be diverted into upper cold airflow A2 and lower cold airflow A3, reducing the amount of cold airflow directly expelled into the lower freezer container 16, thus suppressing food drying. Additionally, the cold storage 1 utilizes the upper cold airflow A2 and lower cold airflow A3 to suppress heat intrusion from the upper surface, bottom surface, and back surface of the lower freezer container 16, thereby reducing the temperature difference between the air inside the lower freezer container 16 and the food surface.

[0117] Furthermore, the cold air guiding component 50 can be detached from the rear part 16b and the bottom part 16c of the lower freezer compartment container 16. As a result, the cold storage 1 can improve the cleaning performance of the lower freezer compartment container 16.

[0118] Furthermore, since the rib 50c is formed on the air-cooling guide member 50, a gap that forms an air-cooling guide channel 60 can be formed between the air-cooling guide member 50 and the back part 16b and the bottom part 16c.

[0119] As described above, the cold storage 1 includes: a lower cold air outlet 25b for blowing cold air into the freezer compartment 9; a lower freezer compartment container 16 located in the freezer compartment 9; and a cold air guiding member 50 disposed within the lower freezer compartment container 16. The cold air guiding member 50 is configured to split the cold air flow A1 blown from the lower cold air outlet 25b into an upper cold air flow A2 flowing above the lower freezer compartment container 16, and a lower cold air flow A3 flowing from the back portion 16b of the lower freezer compartment container 16 to the bottom portion 16c.

[0120] According to this structure, by forming an upper cold airflow A2 and a lower cold airflow A3 relative to the lower freezer container 16, the amount of cold air expelled into the lower freezer container 16 can be reduced, thus freezing and preserving the food inside. Therefore, the temperature difference between the cold air inside the lower freezer container 16 and the surface temperature of the food can be reduced, which can suppress food drying and frosting caused by sublimation and maintain the deliciousness of the food.

[0121] As shown in this embodiment, the cold storage 1 forms a cold air guiding channel 60 in the gap (space) between the cold air guiding component 50 and the rear part 16b and the bottom part 16c, for the flow of the cold air flow A3 below.

[0122] According to this structure, the flow of cold air A3 below can be controlled, the temperature difference of food in the lower freezer container 16 caused by external heat from the lower part of the lower freezer container 16 can be reduced, and drying and frosting can be reduced.

[0123] In addition, such as Figure 9 As shown, particularly on the bottom surface 16c of the lower freezer compartment container 16, a plurality of protrusions and recesses 16g are formed as a reinforcing structure to suppress the deflection of the container itself. By forming a plurality of protrusions and recesses 16g in the front-rear direction of the lower freezer compartment container 16, the protrusions constituting the protrusions and recesses constituting the protrusions and recesses of the cold air guiding component 50 can be used to support the bottom surface 50g of the cold air guiding component 50, and the recesses constituting the protrusions and recesses of the protrusions and recesses 16g can be used as the channel space of the cold air guiding channel 60.

[0124] Therefore, by placing the rib 50c at a position corresponding to the protrusion, a cold air guiding channel 60 can be formed. Alternatively, the cold air guiding channel 60 can be formed solely by the height of the recess without the rib 50c or even without the rib 50c. In this case, the effective internal volume within the lower freezer compartment container 16 can be ensured.

[0125] Additionally, at the lower end 50e of the cold air guiding member 50 located downstream of the lower cold airflow A3, an opening 50d is formed that is open relative to the front surface 16e of the lower freezer compartment container 16.

[0126] This promotes the flow of cold air A3 below within the cold air guiding channel 60.

[0127] (1-3. Effects, etc.)

[0128] As described above, the cold storage 1 of this embodiment includes: a lower cold air outlet 25b for blowing cold air into the freezer compartment 9; a lower freezer compartment container 16 with an open upper surface disposed in the freezer compartment 9; and a cold air guiding member 50 formed in the lower freezer compartment container 16. In this embodiment, the cold storage 1 has the cold air guiding member 50 disposed with a gap at a position corresponding to the back side portion 16b and the bottom portion 16c of the lower freezer compartment container 16, forming a cold air guiding channel 60 through which cold air flows from the back side portion 16b to the bottom portion 16c.

[0129] According to this structure, the cold storage 1 reduces the amount of cold air expelled into the lower freezing compartment container 16, and utilizes the cold air circulating around the outer periphery of the lower freezing compartment container 16 to reduce the heat impact from the outside and reduce the temperature difference between the cold air temperature inside the container and the food surface temperature, thereby achieving frozen preservation of food. Specifically, the cold storage 1 causes the lower cold air flow A3, after being split from the cold air outlet 25b, to circulate in the cold air guide channel 60, cooling the lower freezing compartment container 16. As a result, the cold storage 1 can reduce the temperature difference between the air temperature and the food surface temperature. Consequently, the cold storage 1 can suppress the drying caused by sublimation of food when cold air enters the cold storage to cool the food, and the frost formation that easily occurs when there is a large temperature difference, thus maintaining the deliciousness of the food. In other words, the cold storage 1 in this embodiment can suppress the freezing and burning of food caused by dryness by minimizing the temperature difference between the air temperature inside the lower freezing compartment container 16 and the food surface temperature.

[0130] In addition, the cold air guiding channel 60 is not formed in the part (area) corresponding to the left and right side faces 16f and the front surface face 16e of the lower freezer compartment container 16.

[0131] This structure ensures the storage capacity of the lower freezer compartment container 16 and prevents the reduction of the internal volume.

[0132] As shown in this embodiment, the cold air guiding member 50 is formed inside the lower freezer compartment container 16, and the upper end portion 50a of the cold air guiding member 50 protrudes to a position above the rear periphery 16d that constitutes part of the upper surface opening periphery 16a of the lower freezer compartment container 16.

[0133] This structure can guide the blown-out cold air into the cold air guiding channel.

[0134] As shown in this embodiment, the upper end portion 50a of the cold air guiding component 50 is bent in the forward direction (inward direction of the lower freezer container 16).

[0135] According to this structure, the cold air can be split into a lower cold air flow A3 flowing in the cold air guide channel 60 and an upper cold air flow A2 flowing above the lower freezer container 16.

[0136] As shown in this embodiment, the cold storage 1 includes an upper freezer container 15 above the lower freezer container 16, and the upper end part 50a is located below the upper freezer container 15.

[0137] According to this structure, the upper cold airflow A2 can also be controlled to flow along the lower surface of the upper freezer container 15.

[0138] Therefore, the upper cold airflow A2 reduces the amount of cold air entering the lower freezer compartment container 16, such as Figure 8 As shown, the airflow becomes horizontal, which reduces food drying and frosting caused by sublimation of the cold air entering the container. Furthermore, since the upper cold airflow A2 flows outside the lower surface of the upper freezer container 15, the temperature difference between the cold air inside the upper freezer container 15 and the food surface temperature is reduced. Therefore, it can suppress food drying inside the upper freezer container 15 and prevent frosting that easily occurs when there is a large temperature difference.

[0139] As shown in this embodiment, the cold air guiding component 50 can be detached from the lower freezer compartment container 16.

[0140] Based on this structure, the air conditioning guide component 50 can be removed and cleaned.

[0141] As shown in this embodiment, a plurality of protrusions and recesses 16g are formed on the bottom surface 16c in the front-rear direction of the lower freezer container 16, and the recesses constituting the protrusions and recesses 16g constitute the cold air guiding channel 60.

[0142] According to this structure, the gap that forms the cold air guiding channel 60 can be formed by using the uneven portion 16g formed to strengthen (reinforce) the lower freezer compartment container 16, which can suppress the reduction of the effective internal volume in the lower freezer compartment container 16.

[0143] In addition, in the above embodiment, the cold storage 1 has a cold air guiding component 50 formed inside the lower freezer compartment container 16, but the cold air guiding component 50 can also be detachably formed on the lower freezer compartment container 16 outside the lower freezer compartment container 16, thereby forming a downward cold airflow A3.

[0144] That is, the cold storage 1 can also be configured such that the portions corresponding to the back part 16b and the bottom part 16c of the lower freezer container 16 have a double structure (double-layer structure) by using the cold air guiding component 50, while the left and right side parts 16f and the front surface part 16e of the lower freezer container 16 do not adopt a double structure. As a result, it is possible to prevent the amount of food that can be stored in the container from decreasing.

[0145] In addition, this structure can reduce the temperature difference between the cold air inside the lower freezer compartment 16 and the food surface temperature, thereby suppressing frost formation on the food and container and inhibiting food drying caused by sublimation.

[0146] Alternatively, a slit hole (not shown) can be formed in a portion of the back side 50f of the cold air guiding component 50 in the cold air guiding component 1 to guide a portion of the cold air into the lower freezer compartment container 16. Since a slit hole is formed in a portion of the back side 50f of the cold air guiding component, the inner side of the lower freezer compartment container 16 can be cooled, thereby increasing the cooling speed inside the container.

[0147] (Implementation Method 2)

[0148] The above description of Embodiment 1 serves as an example of the technology of this utility model. However, the technology of this utility model is not limited thereto, and can also be applied to embodiments that have been modified, substituted, added, omitted, etc.

[0149] The structure of the air conditioning guide component 50 is not limited to the structure described in Embodiment 1. Figure 10 This is a perspective view of the air conditioning guiding component 50 according to Embodiment 2. Figure 10 As shown, multiple cold air inlet holes 50h can also be formed in the protrusion 50b of the cold air guiding component 50.

[0150] Figure 11 This is an enlarged view of the main part of the air conditioning guide component 50 in Embodiment 2, schematically showing... Figure 10 The main part around the protrusion 50b. The cold air inlet 50h is located relative to the lower cold air outlet 25b at the position where the blown cold air flow A1 meets the lower edge 50j of the cold air inlet 50h.

[0151] Figure 12 This is a diagram showing the results of fluid analysis of the cold air surrounding the lower freezer compartment container 16 in Embodiment 2, indicating that the cold air flows in the direction of the arrows. Figure 12 As shown, the blown cold airflow A1 is split by the protrusion 50b into the following cold airflows: the lower cold airflow A3, which is guided downward by the cold air guide channel 60; and the upper cold airflow A2, which is formed by the cold air that hits the lower edge 50j of the cold air inlet hole 50h and enters the cold air inlet hole 50h.

[0152] In addition, a portion of the cold air flows into the lower freezer compartment 16 from the cold air inlet 50h. However, the amount of cold air flowing into the lower freezer compartment 16 in the blowing direction is small, such as... Figure 12 As shown, the cold air, circulating slowly upwards in a vortex-like pattern, merges with the upper cold airflow A2. By creating the cold air inlet hole for 50 hours, the deviation of each cold airflow is reduced, ensuring that only a small amount of cold air, creating a vortex at the top, enters the lower freezer container 16, while the larger cold airflow does not enter. This allows for rapid cooling while inhibiting food drying. Furthermore, by utilizing the upper cold airflow A2 and the lower cold airflow A3, the temperature difference between the cold air inside the lower freezer container 16 and the food surface temperature is reduced, inhibiting frost formation on the food and container, thus maintaining quality and the food's flavor.

[0153] in addition, Figure 13 This is a top view of the main part of the lower freezer compartment container 16 in Embodiment 2, viewed from above. (See attached image.) Figure 13 As shown, by forming a stepped portion protruding towards the front side on the front surface portion 16e of the lower freezer compartment container 16, a space can be formed between the stepped portion and the lower end portion 50e of the cold air guiding member 50. Thus, the bottom portion 50g of the cold air guiding member can be formed throughout the entire bottom portion 16c, and the downward cold airflow A3 flowing through the cold air guiding channel 60 opens in the space, forming a circulation path flowing from the front surface portion 16e to the outside.

[0154] in addition, Figure 14 This is a top view of the main portion of another example of the lower freezer compartment container 16 in Embodiment 2. (e.g.) Figure 14 As shown, a plurality of bottom surface blow-out holes 50k communicating with the interior of the lower freezer compartment container 16 may also be formed uniformly (in the same way) on the bottom surface 50g of the cold air guiding component, in the portion from the upstream to the downstream of the lower cold air flow A3 and from approximately halfway in the front-back direction of the lower freezer compartment container 16 to the lower end 50e.

[0155] The term "uniform" refers to the repeated formation of the same shape of the bottom surface blowhole 50k in the front-back and left-right directions.

[0156] This reduces the airflow resistance within the cold air guiding channel 60 and promotes the flow of the cold airflow A3 below.

[0157] This reduces the flow resistance within the cold air guiding channel 60 and increases the flow velocity of the cold air flow A3 below. As a result, it reduces and maintains the temperature difference between the cold air temperature inside the lower freezer container 16 and the food surface temperature.

[0158] in addition, Figure 15 This is a schematic diagram of the cold airflow around the freezer 9 and cooler 20 in Embodiment 2. Figure 15 As shown, a protrusion 50b is formed that bends from the back side 50f of the cold air guiding member 50 toward the freezer door 14, and an upper surface 50m extends horizontally toward the freezer door 14. The upper surface 50m extends to approximately halfway in the front-rear direction of the lower freezer container 16, and can guide the horizontal flow of the upper cold airflow A2, thereby reducing the amount of cold air entering the lower freezer container 16.

[0159] In addition, by forming the upper surface portion 50m to approximately halfway along the front-rear direction of the lower freezer compartment container 16, it is possible to maintain the ease with which the user can take food out of the upper surface opening of the lower freezer compartment container 16.

[0160] Furthermore, in the above embodiment, a cold air guiding component 50 is formed inside the lower freezer compartment container 16. However, in embodiment 2, the cold air guiding component 50 can also be detachably formed on the outside of the lower freezer compartment container 16 to form a downward cold airflow A3. According to this structure, the temperature difference between the cold air inside the lower freezer compartment container 16 and the food surface temperature can be reduced, thus suppressing frost formation on the food and container and inhibiting food drying caused by sublimation.

[0161] Industrial availability

[0162] As described above, the cold storage of this invention can be appropriately applied to cold storage facilities with freezer compartments.

Claims

1. A cold storage warehouse, characterized in that, include: Cold air outlet used to blow cold air into the freezer compartment; A first freezer container is disposed in the freezer compartment, the upper surface of which is open; and The cold air guiding component formed in the first freezer compartment container, The cold air guiding component is positioned at a location corresponding to the back and bottom surfaces of the first freezer compartment container, with a gap between them. It is configured with a cold air guiding channel that allows the cold air to flow from the rear part to the bottom part through the gap.

2. The cold storage warehouse as described in claim 1, characterized in that: The cold air guiding channel is not formed in the portion corresponding to the left and right sides and the front surface of the first freezer container.

3. The cold storage warehouse as described in claim 1, characterized in that: The cold air guiding component is located inside the first freezer compartment container. The upper end of the cold air guiding component protrudes upward beyond the rear periphery of the portion that forms part of the upper surface opening periphery of the first freezer compartment container.

4. The cold storage warehouse as described in claim 3, characterized in that: The upper end is formed by bending towards the inside of the first freezer container.

5. The cold storage warehouse as described in claim 3, characterized in that: A second freezer container is located above the first freezer container, with the upper end positioned below the second freezer container.

6. The cold storage warehouse as described in claim 1, characterized in that: The cold air guiding component is detachable from the first freezer compartment container.

7. The cold storage warehouse as described in claim 1, characterized in that: Multiple protrusions and recesses are formed on the bottom surface of the first freezer container in the front-back direction, and the recesses constituting the protrusions and recesses constitute the cold air guiding channel.

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