refrigerator
The refrigerator's air duct cover and insulating member within the storage container ensure uniform cooling without direct cold air exposure, maintaining food freshness and preventing freezing or fogging, addressing the challenges of conventional designs.
Patent Information
- Application Number
- JP2021211165
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-12-24
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2041-12-24
AI Technical Summary
Conventional refrigerators struggle to maintain the freshness of food stored in chilled containers by preventing direct exposure to cold air that can cause freezing, especially when the container is made of transparent materials like glass, which complicates air passage design.
The refrigerator incorporates an air duct cover inside the storage container with side and downward openings to distribute cold air evenly, using an insulating member and a metal plate to prevent direct air contact with food and reduce fogging on transparent surfaces.
This design maintains food freshness by uniformly cooling the storage container to -3°C ± 1°C, preventing freezing and fogging, while ensuring the appearance of the transparent shelf remains clean and hygienic.
Smart Images

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Abstract
Description
[Technical Field]
[0001] The present invention relates to a refrigerator, and more particularly to a refrigerator that blows cool air to a container stored in a storage compartment. [Background technology]
[0002] Conventionally, refrigerators in which storage containers are arranged inside a refrigerator compartment, such as that described in Patent Document 1, are known. In this refrigerator, a chilled container is stored at the bottom of the refrigerator compartment. Cold air blown by a fan is supplied to the refrigerator compartment through an air duct formed at the rear side of the refrigerator compartment. A portion of the cold air blown into the air duct is blown directly to the chilled container without passing through the refrigerator compartment. In this way, the temperature inside the chilled container is made lower than the temperature inside the refrigerator compartment, for example, to about 0°C. In this way, food such as meat stored in the chilled container can be preserved while maintaining its freshness. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-44687 Summary of the Invention [Problem to be solved by the invention]
[0004] However, the refrigerator described in Patent Document 1 above has room for improvement in terms of maintaining the freshness of food stored in chilled containers.
[0005] Specifically, in order to maintain the freshness of food stored in a chilled container for a long period of time, it is preferable to maintain the indoor temperature of the chilled container at a low temperature of around -3°C, which does not cause the food inside the container to freeze completely. However, if cold air of around -15°C is introduced into the chilled container to lower the indoor temperature of the chilled container, the introduced cold air is blown directly onto the food, causing it to freeze and making it difficult to maintain its freshness.
[0006] One solution to this problem is to cool the chilled container from the top side. However, if the top of the chilled container is made of a transparent material such as glass to ensure visibility, it becomes difficult to form an air passage on the top side.
[0007] The present invention has been made in view of the above circumstances, and its object is to provide a refrigerator capable of maintaining the freshness of food stored in a storage container for a long period of time. [Means for solving the problem]
[0008] The refrigerator of the present invention comprises a cooling chamber in which a cooler that cools cold air is housed, an air duct for blowing the cold air from the cooling chamber to a storage chamber, a storage container arranged inside the storage chamber, and an inlet for introducing the cold air into the storage container, and is characterized in that an air duct cover is arranged inside the storage container at a position opposite the inlet, and the air duct cover has a side opening for blowing the cold air out to the side and a downward opening for blowing the cold air downward. [Effects of the Invention]
[0013] According to the present invention, it is possible to provide a refrigerator capable of maintaining the freshness of food stored in a storage container for a long period of time. [Brief explanation of the drawings]
[0023] [Figure 1] 1 is a perspective view showing the appearance of a refrigerator according to an embodiment of the present invention; [Figure 2] 1 is a front view showing the exterior of a refrigerator according to an embodiment of the present invention with an insulating door open. [Figure 3] 1 is a side cross-sectional view showing the internal configuration of a refrigerator according to an embodiment of the present invention. [Figure 4A] FIG. 1 is a front view showing an air passage configuration of a refrigerator according to an embodiment of the present invention. [Figure 4B]1 is a front view showing an internal configuration and an air passage configuration of a refrigerator according to an embodiment of the present invention. FIG. [Figure 5] 1 is a side cross-sectional view showing the internal configuration of a refrigerating compartment of a refrigerator according to an embodiment of the present invention. [Figure 6] 1 is a perspective view of an air duct cover and the like of a refrigerator according to an embodiment of the present invention, as viewed from the front. FIG. [Figure 7] FIG. 2 is a perspective view of an air duct cover and the like of the refrigerator according to the embodiment of the present invention, as viewed from the rear. [Figure 8A] 3 is a side cross-sectional view showing the flow of cool air blown out from an air outlet into a storage container in a refrigerator according to an embodiment of the present invention. FIG. [Figure 8B] FIG. 2 is a top cross-sectional view showing the flow of cool air along a heat insulating member in a refrigerator according to an embodiment of the present invention. [Figure 9A] 1 is a perspective view showing a flow of cool air blown out from an air passage cover in a refrigerator according to an embodiment of the present invention. FIG. [Figure 9B] 1 is a perspective view showing the flow of cool air inside a storage container in a refrigerator according to an embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE INVENTION
[0024] A refrigerator 10 according to an embodiment of the present invention will be described in detail below with reference to the drawings. In the description of this embodiment, the same components will generally be designated by the same reference numerals, and repeated description will be omitted. In the following description, the top, bottom, front, back, left, and right directions will be used, but the left and right refer to the left and right when the refrigerator 10 is viewed from the front.
[0025] FIG. 1 is a perspective view of refrigerator 10 as seen from the front left side. Refrigerator 10 has an insulated box body 11 and a storage compartment formed inside insulated box body 11. The storage compartments include, from above, refrigerator compartment 12 and freezer compartment 13. The front opening of refrigerator compartment 12 is closed by rotating insulated doors 18 and 19. The front opening of freezer compartment 13 is closed by insulated doors 20 and 21. Insulated doors 18, 19, 20, and 21 are rotating doors that can rotate around their outer left and right ends.
[0026] FIG. 2 is a front view showing refrigerator 10 with insulating door 18, insulating door 19, insulating door 20, and insulating door 21 in an open state.
[0027] Storage containers 25 and 26 are arranged below refrigerator compartment 12. Storage containers 25 and 26 are roughly box-shaped containers made of synthetic resin and are installed so that they can be freely pulled out in the front-to-rear direction. Storage container 25 is a chilled container whose interior is cooled to a temperature range of approximately -3°C. Storage container 26 is a container whose interior is cooled to approximately 2°C and is used to store vegetables and the like at low temperatures. The temperature inside refrigerator compartment 12 other than storage containers 25 and 26 is in the refrigeration temperature range of, for example, 3°C to 5°C. A water supply tank 24 is arranged on the left side of storage container 26 to store water to be supplied to the ice maker. Storage pockets 17 are arranged on the interior sides of insulated doors 18 and 19 to store beverages, seasonings, and the like.
[0028] A plurality of storage containers 32 are stored in freezer compartment 13. Here, six storage containers 32 are arranged in a matrix. Each storage container 32 can be freely pulled out in the front-to-rear direction. The temperature inside freezer compartment 13 is, for example, in the freezing temperature range of -20°C to -18°C. An automatic ice maker (not shown) is disposed inside freezer compartment 13. The automatic ice maker produces ice by freezing water supplied from water supply tank 24 described above.
[0029] The cross-sectional configuration of the refrigerator 10 will be described with reference to the side cross-sectional view of Fig. 3. In Fig. 3, the flow of cool air inside the refrigerator 10 is indicated by dotted arrows.
[0030] The insulating box body 11 is composed of an outer box 111 made of a steel plate bent into a predetermined shape, an inner box 112 made of a synthetic resin plate placed inside and spaced apart from the outer box 111, and an insulating material 113 filled between the outer box 111 and the inner box 112.
[0031] As described above, the storage compartment inside the insulating box 11 is divided from above into the refrigerating compartment 12 and the freezing compartment 13. The refrigerating compartment 12 and the freezing compartment 13 are divided by an insulating wall 27.
[0032] The interior of refrigerator compartment 12 is vertically divided by a plurality of storage shelves 15. Storage shelf 152 is arranged above storage container 26, which is located at the bottom of refrigerator compartment 12. Storage container 25 is arranged above storage shelf 152, and the upper opening of storage container 25 is covered by storage shelf 151. As described above, the interior of storage container 26 functions as a vegetable compartment, and the interior of storage container 25 functions as a chilled compartment.
[0033] Storage shelf 151 covering the interior upper surface of storage container 25 is made of a transparent plate material, such as a glass plate. Because storage shelf 151 is made of a transparent plate material, a user can see the food stored in storage container 25 through storage shelf 151 without having to pull storage container 25 forward.
[0034] A cooling compartment 115 is formed at the rear of the freezing compartment 13, and the freezing compartment 13 and the cooling compartment 115 are separated by a partition wall 28. An evaporator 116, which is a cooler, is disposed inside the cooling compartment 115. A machine compartment 14 is defined at the rear of the lower end of the refrigerator 10, and a compressor 22 is disposed in the machine compartment 14. The evaporator 116 and the compressor 22, together with a condenser and expansion means (not shown), form a vapor compression refrigeration cycle. By operating the vapor compression refrigeration cycle, the evaporator 116 cools the cold air inside the cooling compartment 115, and this cold air is sent to each storage compartment, thereby maintaining the temperature inside each storage compartment within a predetermined cooling temperature range.
[0035] Inside the cooling chamber 115, a blower 29 is arranged above the evaporator 116. The blower 29 is an axial flow blower or a centrifugal blower, and blows the cold air inside the evaporator 116, which has been cooled by the evaporator 116, towards the refrigerator chamber 12 and the freezer chamber 13.
[0036] A defrost heater 117 is disposed inside the evaporator 116 and below the evaporator 116. As the vapor compression refrigeration cycle operates, thick frost forms on the surface of the evaporator 116. When this occurs, a control means (not shown) stops the compressor 22 and energizes the defrost heater 117 to heat it, thereby performing a defrosting operation to melt and remove the frost.
[0037] An air passage 118 is formed extending upward from the cooling compartment 115. An air outlet 23, which is an opening for blowing cool air into the refrigerator compartment 12, is formed in the air passage 118. The cool air is blown forward from the air outlet 23. An air passage damper 31 is installed in the air passage 118, and this configuration will be described later with reference to FIG. 4A.
[0038] As will be described later, cool air is sent directly to storage container 25 from an air passage formed separately from air passage 118. This causes the interior of storage container 25 to be cooled to a chilled temperature range. This configuration will be described later with reference to Fig. 8A etc.
[0039] A portion of the cool air blown out from air outlet 33 is not introduced into storage container 25 through inlet 34, but travels forward between storage container 25 and storage shelf 152, and then flows downward. In addition, the cool air blown out from inlet 34 into storage container 25 cools the inside of storage container 25, is blown out forward from an opening formed at the front end of storage container 25, and then flows downward.
[0040] Storage container 26 is a semi-sealed storage container. That is, storage container 26 does not have any openings for actively introducing or discharging cold air. As described above, some of the cold air blown out from air outlet 33 flows downward inside refrigeration compartment 12 and envelops storage container 26 from the outside. As a result, the temperature inside storage container 26 is maintained in a refrigeration temperature range that is lower than the typical temperature inside refrigeration compartment 12.
[0041] A portion of the cold air blown by blower 29 is blown into freezing compartment 13 through air outlet 41, which is an opening formed in partition wall 28. The cold air that has cooled the inside of each container arranged in freezing compartment 13 returns to cooling compartment 115 through return outlet 42. This allows freezing compartment 13 to be cooled to a predetermined freezing temperature range.
[0042] FIG. 4A is a front view showing the configuration of air duct 118 and the like, and FIG. 4B is a front view showing refrigerating compartment 12 of refrigerator 10 together with air duct 118 and the like.
[0043] 4A and 4B, air outlet 16 is formed by opening the side and upper end of air passage 118. Cool air passing through insulating door 18 is blown out from air outlet 16 into refrigerator compartment 12.
[0044] An air duct damper 31 is attached to the lower part of the air duct 118. The temperature inside the refrigerator compartment 12 is detected by a temperature sensor (not shown) in the refrigerator compartment 12, and the temperature in the refrigerator compartment 12 is cooled to a predetermined refrigeration temperature range by opening and closing the air duct damper 31.
[0045] Air passage 119 is an air passage that branches off from the middle of air passage 118 toward the upper right side. An air passage damper 30 is attached to the lower part of air passage 119. A temperature sensor that detects the indoor temperature of storage container 25 is attached to air passage 119. By opening and closing air passage damper 30 based on the temperature detected by the temperature sensor, the indoor temperature of storage container 25 is set to a predetermined chilled temperature range.
[0046] 4B, an air outlet 33 and an inlet 34 are formed at the upper end of air passage 119. Cool air blown upward through air passage 119 is blown directly to storage container 25 through air outlet 33 and inlet 34. The configurations of air outlet 33 and inlet 34 will be described later with reference to FIG. 5 and the like.
[0047] An air outlet 40 is formed in the middle of air passage 118. Air outlet 40 is an opening above storage shelf 151 through which cool air that has risen up air passage 118 is blown out into refrigeration compartment 12. When refrigeration compartment 12 is in the open state, condensation may form on the surface of storage shelf 151. Even in such a case, the cool air blown out from air outlet 40 flows over the top surface of storage shelf 151, thereby eliminating the condensation that has formed on the surface of storage shelf 151.
[0048] FIG. 5 is a side cross-sectional view showing the portion inside the refrigerator compartment 12 where the air outlet 33 and the inlet 34 are arranged.
[0049] The air outlet 33 is an opening formed in the insulated box body 11 for blowing the cool air circulating through the air passage 119 into the storage container 25. The air outlet 33 has a generally rectangular shape when viewed from the front, and is provided with a rib 39 at its front end. The ribs 39 are plate-like members that extend generally horizontally, and a plurality of the ribs 39 are provided at generally equal intervals along the vertical direction.
[0050] The inlet 34 is formed by opening a substantially rectangular shape on the rear side surface of the storage container 25. The inlet 34 is formed to be larger than the outlet 33. Specifically, the inlet 34 is formed to be longer than the outlet 33 in the up-down and left-right directions. That is, when the storage container 25 is stored inside the refrigerator compartment 12, the upper end of the inlet 34 is located above the upper end of the outlet 33, the lower end of the inlet 34 is located below the lower end of the outlet 33, the left end of the inlet 34 is located to the left of the left end of the outlet 33, and the right end of the inlet 34 is located to the right of the right end of the outlet 33.
[0051] As a result, most of the cool air blown out from the air outlet 33 is introduced into the room of the storage container 25 via the inlet 34, and the room of the storage container 25 can be cooled effectively.
[0052] An air passage cover 35 is attached to the inlet 34 from the front side, and a rear member 38 is attached to the inlet 34 from the rear side.
[0053] Air passage cover 35 is disposed inside storage container 25 at a position facing inlet 34. Air passage cover 35 is made of a synthetic resin plate formed into a generally lid shape. The specific configuration of air passage cover 35 will be described later with reference to Figs. 6 and 7.
[0054] The rear member 38 is made of synthetic resin and is fitted into the inlet 34 of the storage container 25 from the rear side, and has an opening for allowing cool air to circulate. The specific configuration of the rear member 38 will be described later with reference to Figures 6 and 7.
[0055] The heat insulating member 36 is disposed between the air passage cover 35 and the inlet 34. The heat insulating member 36 is made of a material having better heat insulating properties than the air passage cover 35, for example, a foamed resin such as polystyrene foam. The specific configuration of the heat insulating member 36 will be described later with reference to Figs. 6 and 7.
[0056] A metal plate 37 made of, for example, aluminum or stainless steel is placed on the bottom surface of storage container 25. Food to be stored in storage container 25 is placed on the top surface of metal plate 37.
[0057] The air passage cover 35 and rear surface member 38 described above are fitted together via the inlet 34. The air passage cover 35 is fitted together with the rear surface member 38 with the heat insulating member 36 built in.
[0058] Fig. 6 is an exploded perspective view of the air passage cover 35 and the like as seen from the front. Fig. 7 is an exploded perspective view of the air passage cover 35 and the like as seen from the rear. Although not shown here, a filter is disposed between the heat insulating member 36 and the rear member 38. For example, a bag-shaped nonwoven fabric containing deodorizing beads or honeycomb-shaped filter paper can be used as the filter. By disposing the filter, it is possible to deodorize the cool air and further prevent dust and the like from entering the storage container 25.
[0059] 6, rear member 38 is a generally lid-shaped member having an opening facing forward. An outer wall portion 383 is formed around the front surface of rear member 38. Outer wall portion 383 is a portion where the outer periphery of rear member 38 protrudes forward in a wall-like shape. Outer wall portion 383 is a portion that fits with air passage cover 35.
[0060] The upper opening 381 and the lower opening 382 are openings formed in approximately the center in the left-right direction of the rear member 38. Cool air is introduced into the storage container 25 through the upper opening 381 and the lower opening 382.
[0061] As shown in FIG. 7 , upper opening 381 is formed as a plurality of slits. This configuration prevents a user's hand from reaching the back of upper opening 381 and touching the filter. Furthermore, as shown in FIG. 6 , upper opening 381 is surrounded by a wall-like portion. Specifically, upper opening 381 is surrounded by opening wall portion 384, opening wall portion 385, and opening wall portion 386. Opening wall portion 384, opening wall portion 385, and opening wall portion 386 are portions that extend forward from the front surface of rear member 38. This configuration allows a filter (not shown here) to be placed in the area surrounded by opening wall portion 384, opening wall portion 385, and opening wall portion 386.
[0062] 7, the lower opening 382 is formed as a single, substantially rectangular opening. The lower opening 382 is formed below the upper opening 381.
[0063] 6, the heat insulating member 36 is housed in a space formed by the rear member 38 and the air passage cover 35. Referring to FIG. 7, the rear surface of the heat insulating member 36, which is the surface facing the inlet 34 described above, has a flat surface 364, side inclined surfaces 361, side inclined surfaces 362, and a downward inclined surface 363.
[0064] The flat surface 364 is a flat surface formed in the upper central portion in the left-right direction of the rear surface of the heat insulating member 36. The flat surface 364 is approximately perpendicular to the flow of cool air introduced through the upper opening 381.
[0065] The side inclined surface 361 is a surface that inclines forward as it extends to the right. The side inclined surface 361 is formed between the right side of the heat insulating member 36 and the flat surface 364. The side inclined surface 361 is a portion that causes the cool air introduced from the upper opening 381 to flow toward the right.
[0066] The side inclined surface 362 is a surface that inclines forward as it extends to the left. The side inclined surface 362 is formed between the left side edge of the heat insulating member 36 and the flat surface 364. The side inclined surface 362 is a portion that causes the cool air introduced from the upper opening 381 to flow leftward.
[0067] The downward inclined surface 363 is a portion of the surface of the heat insulating member 36 facing the inlet 34 that is inclined forward as it goes downward. The downward inclined surface 363 is formed between the lower side surface of the heat insulating member 36 and the flat surface 364. The downward inclined surface 363 is a portion that causes the cool air introduced from the lower opening 382 to flow downward.
[0068] 7, the air passage cover 35 is a generally lid-shaped member that opens rearward. The air passage cover 35 has a side opening 351, a side opening 352, and a lower opening 353.
[0069] The side opening 351 is formed by opening the right side surface of the air passage cover 35. From the side opening 351, cool air flowing along the side inclined surface 361 of the heat insulating member 36 is blown out into the inside of the storage container 25 described above.
[0070] The side opening 352 is formed by opening the left side surface of the air passage cover 35. From the side opening 352, cool air flowing along the side inclined surface 362 of the heat insulating member 36 is blown out into the storage container 25 described above.
[0071] The lower opening 353 is formed by opening the lower side surface of the air passage cover 35. From the lower opening 353, cool air flowing along the lower inclined surface 363 of the heat insulating member 36 is blown out into the inside of the storage container 25 described above.
[0072] Here, no opening is formed on the top surface of air passage cover 35. That is, cool air is not blown upward from air passage cover 35. This prevents fogging on storage shelf 151, which is a glass plate that covers storage container 25 from above, as shown in FIG.
[0073] FIG. 8A is a side cross-sectional view showing the flow of cool air blown out from the inlet 34 into the storage container 25.
[0074] First, the cool air cooled by the evaporator 116 in the cooling chamber 115 shown in Fig. 3 is blown upward through the air passage 119 by the blowing force of the blower 29. The cool air flowing through the air passage 119 is blown forward from the outlet 33. At this time, the cool air flows along the ribs 39 and is blown out substantially horizontally.
[0075] The cool air is then blown out from the air outlet 33 into the storage container 25. As mentioned above, the inlet 34 of the storage container 25 is formed larger than the air outlet 33. Therefore, most of the cool air blown out from the air outlet 33 is introduced into the room of the storage container 25 via the inlet 34. As a result, the room temperature of the storage container 25 is cooled to a temperature range of -3°C±1°C.
[0076] The aforementioned opening wall 385 is disposed at the inlet 34. The opening wall 385 is inclined downward toward the front. Therefore, a portion of the cool air blown out from the air outlet 33 flows downward, and as will be described later, the metal plate 37 can be effectively cooled.
[0077] As described above, the heat insulating member 36 is incorporated behind the air passage cover 35. Therefore, the cool air introduced into the storage container 25 from the inlet 34 abuts against the rear surface of the heat insulating member 36 and is not blown onto the air passage cover 35. This prevents the air passage cover 35 from being directly cooled by the cool air, and prevents fogging and condensation from forming on the front surface of the air passage cover 35. If fogging or condensation were to occur on the front surface of the air passage cover 35, it could visually create an impression of uncleanliness. In this embodiment, the impression of cleanliness can be improved by preventing this fogging and condensation.
[0078] A portion of the cool air blown out from the air outlet 33 hits the downward inclined surface 363 formed on the lower front portion of the heat insulating member 36 and is guided downward. The cool air then passes through the lower opening 353 of the air passage cover 35, travels downward and forward, and hits the upper surface of the metal plate 37. The cool air then travels forward along the upper surface of the metal plate 37. In this manner, the internal space of the storage container 25 and the stored items can be cooled via the metal plate 37.
[0079] 8B is a cross section corresponding to the AA section line in FIG. 8A, and is a top cross section showing the flow of cool air along the heat insulating member 36. A portion of the cool air introduced from the air outlet 33 to the inlet 34 contacts the flat surface 364, then travels rightward and leftward along the side inclined surfaces 361 and 362, and is blown out from the side surface of the storage container 25 into the room inside the storage container 25.
[0080] Fig. 9A is a perspective view showing the flow of cool air blown out from air passage cover 35. Fig. 9B is a perspective view showing the flow of cool air inside storage container 25. In Fig. 9A, the flow of cool air is indicated by dashed arrows, and in Fig. 9B, the flow of cool air is indicated by white arrows.
[0081] 9A, the cool air guided to the right by the side inclined surface 361 shown in FIG. 8B passes through the side opening 351 of the air passage cover 35 and is blown into the room of the storage container 25. The cool air guided to the left by the side inclined surface 362 shown in FIG. 8B passes through the side opening 352 of the air passage cover 35 and is blown into the room of the storage container 25. The cool air guided downward by the downward inclined surface 363 shown in FIG. 8A passes through the lower opening 353 and is blown into the room of the storage container 25.
[0082] 9B, cool air is blown out from air passage cover 35 to the left and right, allowing the interior of storage container 25 to be uniformly cooled from the periphery. Cool air is also blown downward from air passage cover 35, thereby directly cooling metal plate 37 and effectively cooling food placed on metal plate 37. Furthermore, storage container 25 can be uniformly cooled all the way to the lower end.
[0083] On the other hand, cold air is not blown forward from air duct cover 35. Therefore, cold air of about -15°C is not blown directly onto food stored in storage container 25, preventing the surface of the food from drying out or freezing, and preventing the food from losing its freshness. Furthermore, cold air is not blown upward from air duct cover 35. Therefore, cold air is not blown onto storage shelf 151 shown in FIG. 3, and fogging and condensation can be prevented without the need to attach a heater or the like to storage shelf 151.
[0084] The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.
[0085] Specifically, the volume of cold air blown into the chilled compartment formed inside storage container 25 can be controlled to keep the temperature of the chilled container at -3±1°C by providing a dedicated air duct and air duct damper separate from refrigerator compartment 12. This reduces temperature changes in food stored in storage container 25, reduces the amount of water evaporation, and enables food to stay fresh for longer. The invention that can be understood from the above-described embodiment will be described below together with its effects. The refrigerator of the present invention comprises a cooling chamber in which a cooler that cools cold air is housed, an air duct through which the cold air blown from the cooling chamber to a storage chamber flows, a storage container placed inside the storage chamber, and an inlet through which the cold air is introduced into the storage container, and is characterized in that an air duct cover is placed inside the storage container at a position opposite the inlet. According to the refrigerator of the present invention, the freshness of food stored in a storage container forming a chilled compartment or the like can be maintained for a long period of time. Specifically, the air duct cover is disposed inside the storage container at a position facing the inlet, thereby preventing cold air from being blown directly into the interior of the storage container from the inlet. Therefore, cold air is not blown directly onto food such as meat stored in the storage container, and the food can be prevented from drying out. The refrigerator of the present invention is further characterized in that it includes an insulating member, which is disposed between the air duct cover and the inlet and is made of a material having better insulating properties than the air duct cover. According to the refrigerator of the present invention, the insulating member is arranged between the air duct cover and the inlet, thereby preventing cold air from directly hitting the air duct cover and preventing fogging on the front surface of the air duct cover. In addition, in the refrigerator of the present invention, the insulating member has a side inclined surface, and the side inclined surface is a portion of the surface of the insulating member facing the inlet that is inclined in a direction away from the inlet as it moves toward the side. According to the refrigerator of the present invention, the side end of the heat insulating member is an inclined surface, so that the cool air introduced from the inlet can flow sideways, thereby enabling uniform cooling up to the side end of the storage container and preventing the cool air from being blown directly onto the stored items. In addition, in the refrigerator of the present invention, the heat insulating member has a downwardly inclined surface, and the downwardly inclined surface is a portion of the surface of the heat insulating member facing the inlet that is inclined in a direction away from the inlet as it goes downward. According to the refrigerator of the present invention, the lower end of the heat insulating member is an inclined surface, which allows the cool air introduced from the inlet to flow downward, thereby enabling uniform cooling up to the lower end of the storage container and preventing the cool air from being blown directly onto the stored items. In addition, in the refrigerator of the present invention, a metal plate is placed on the bottom surface of the storage container, and a portion of the cold air introduced into the storage container is blown onto the metal plate. According to the refrigerator of the present invention, cold air can be blown onto a metal plate placed on the bottom of the storage container, and by cooling the stored items through the metal plate, the stored items can be cooled even more effectively. [Explanation of symbols]
[0086] 10. Refrigerator 11 Insulated box 111 outer box 112 Inner box 113 Insulation 115 Cooling room 116 Evaporator 117 Defrost heater 118 Air duct 119 Air duct 12 Refrigerator 13 Freezer 14 Machine room 15 Storage Shelves 151 Storage Shelf 152 Storage Shelf 16 Air outlet 17 Storage Pockets 18 Insulated Door 19 Insulated Door 20 Insulated Door 21 Insulated Door 22 Compressor 23 Air outlet 24 Water tank 25 Storage Container 26 Storage container 27 Insulated Walls 28 Partition Wall 29 Blower 30 Air duct damper 31 Air duct damper 32 Storage container 33 Air outlet 34 Introduction 35 Air duct cover 351 Side opening 352 Side opening 353 Lower opening 36 Heat insulating materials 361 Lateral slope 362 Lateral slope 363 Downward slope 364 flat surface 37 Metal plate 38 Rear part 381 Upper opening 382 Lower opening 383 Outer wall 384 Opening wall 385 Opening wall 386 Opening wall 39 Ribs 40 Air outlet 41 Ventilation vent 42 Return Exit
Claims
1. a cooling chamber in which a cooler that cools the cold air is housed; an air passage for blowing the cool air from the cooling chamber to the storage chamber; a storage container disposed inside the storage chamber; an inlet for introducing the cool air into the storage container; a heat insulating member, an air passage cover is disposed inside the storage container at a position facing the inlet; The heat insulating member is disposed between the air passage cover and the inlet, and is made of a material having better heat insulating properties than the air passage cover.
2. The heat insulating member has a side inclined surface, The refrigerator according to claim 1, wherein the side inclined surface is a portion of the surface of the heat insulating member facing the inlet that is inclined in a direction away from the inlet as it goes laterally.
3. The heat insulating member has a downwardly inclined surface, The refrigerator according to claim 1 or 2, wherein the downwardly inclined surface is a portion of the surface of the heat insulating member facing the inlet that is inclined in a direction away from the inlet as it extends downward.
4. A metal plate is placed on the bottom surface of the container, 4. The refrigerator according to claim 1, wherein a part of the cold air introduced into the storage container is blown onto the metal plate.
Citation Information
Patent Citations
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