Tray and cooling device

Abstract

The invention provides a tray and a cooling device capable of realizing a more excellent cooling function. The tray can be positioned in front of an outlet for blowing out cold air in a cooling chamber of the cooling device. The tray includes a tray body and a cover. The tray body has a space that opens upward. The cover covers at least a portion of the opening of the tray body.

Description

Technical Field

[0001] The invention relates to a tray and a cooling device. Background Art

[0002] Conventionally, the following refrigerators are known.

[0003] Japanese Patent No. 3490379 describes a refrigerator capable of performing a quick freezing function. Summary of the invention

[0004] There is a need for new cooling devices that are able to freeze more quickly.

[0005] An object of the present disclosure is to provide a tray and a cooling device that can achieve a better cooling function.

[0006] According to one aspect of the present disclosure, a tray can be located in front of a blow-out port for blowing out cold air in a cooling chamber of a cooling device. The tray includes a tray body and a cover. The tray body has a space open upward. The cover covers at least a portion of the opening of the tray body.

[0007] According to another aspect of the present disclosure, a cooling device includes the above-mentioned tray and a device body. The device body is formed with a cooling chamber and a blow-out port opened in the cooling chamber. The tray can be arranged in front of the blow-out port.

[0008] According to the tray of the present disclosure, a more excellent cooling function can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a front view showing a cooling device according to one embodiment of the present disclosure. Figure 2 It is a perspective view of a cooling device according to one embodiment of the present disclosure. Figure 3 It is a perspective view showing a part of the cooling device according to one embodiment of the present disclosure. Figure 4 This is a perspective view showing a part of the cooling device according to one embodiment of the present disclosure. Figure 5 is a top view of a cooling container and a tray in one embodiment of the present disclosure. Figure 6 This is a perspective view of a tray according to an embodiment of the present disclosure as viewed diagonally from below. Figure 7 1 is a block diagram showing a control unit of a cooling device according to an embodiment of the present disclosure. Figure 8 It is a cross-sectional view of a part of the cooling device according to one embodiment of the present disclosure. Fig. 9This is an enlarged perspective view of a first blowing portion of a cooling device according to an embodiment of the present disclosure. Fig.10 Graphs showing temperature changes in a tray according to an embodiment of the present disclosure and temperature changes in a tray according to a comparative example. Fig.11 This is a perspective view showing a tray according to Modification 1 of one embodiment of the present disclosure. Fig.12 It is a graph showing the temperature change in the tray of Modification Example 1 and the temperature change in the tray of the comparative example. Fig.13 It is a perspective view showing a tray according to Modification 2 of one embodiment of the present disclosure. Fig.14 It is schematically indicated Fig.11 A cross-sectional view of a cross section of the tray shown. Fig.15 This is a cross-sectional view schematically showing a cross section of a tray according to Modification 3 of one embodiment of the present disclosure. Fig.16 This is a cross-sectional view schematically showing a cross section of a tray according to Modification 4 of one embodiment of the present disclosure. Fig.17 It is a perspective view showing a tray according to Modification 5 of one embodiment of the present disclosure. Fig.18 It is a perspective view showing a tray according to Modification 6 of one embodiment of the present disclosure. Fig.19 It is a perspective view showing a tray according to Modification 7 of one embodiment of the present disclosure. Fig. 20 It is schematically indicated Fig.19 A cross-sectional view of a cross section of the tray shown. Fig.21 It is a perspective view showing a tray according to Modification 8 of one embodiment of the present disclosure. Fig. 22 This is another perspective view showing a tray according to Modification 8 of one embodiment of the present disclosure. DETAILED DESCRIPTION

[0010] Hereinafter, the embodiments of the present disclosure will be described with reference to the accompanying drawings. In addition, the same reference numerals are given to the same or corresponding parts in the drawings, and the description thereof will not be repeated.

[0011] [Implementation Method 1] Reference Figure 1 to Figure 3etc. to illustrate the cooling device 1 involved in the present embodiment. In addition, in the present disclosure, the cooling device 1 is a general term for a device that cools objects such as food. In the cooling device 1, for example, in addition to a freezer box and a freezer room having only a freezing chamber, there is also a refrigerator box having a refrigerating chamber, etc. A freezing chamber is a general term for a room that cools the indoor temperature to below 0°C. The freezing chamber is preferably a room that supplies cold air at a temperature below -18°C. In the present embodiment, an example is described in which the cooling device 1 has a refrigerating chamber in addition to the freezing chamber. However, the present invention is not limited to this structure. For example, the cooling device 1 may also be a freezer box having only a freezing chamber.

[0012] (Overview of Cooling Device 1) Figure 1 A cooling device 1 according to this embodiment of the present disclosure is shown. Figure 2 It is a perspective view of the cooling device 1 . Figure 3 1 is a perspective view showing a part of the cooling device 1. In the following description, Figure 1 The lateral direction of is set as the width direction of the refrigerator. Figure 1 The direction perpendicular to the paper is set as the depth direction of the refrigerator. Figure 1 The longitudinal direction is set as the height direction of the refrigerator. In the height direction, sometimes Figure 1 The lower side of the paper is set as "down", and the upper side of the paper is set as "up". In the depth direction, sometimes Figure 1 The inner side of the paper is set as the "back side" or "rear side", and the front side of the paper is set as the "front side".

[0013] like Figure 1 As shown, the cooling device 1 includes a housing 5. The housing 5 has heat insulation properties. A first refrigerating chamber 50, a second refrigerating chamber 40, a first freezing chamber 10, a second freezing chamber 20, and a third freezing chamber 30 are formed in the housing 5. The first freezing chamber 10 is equivalent to an example of a "cooling chamber". The first refrigerating chamber 50, the second refrigerating chamber 40, the first freezing chamber 10, the second freezing chamber 20, and the third freezing chamber 30 are isolated from each other by the housing 5.

[0014] The first refrigerating chamber 50 and the second refrigerating chamber 40 are spaces for refrigerating food, etc. "Refrigerating" means cooling below room temperature within a temperature range higher than 0°C. At least one of the first refrigerating chamber 50 and the second refrigerating chamber 40 may be a so-called vegetable chamber suitable for storing vegetables.

[0015] The first freezing chamber 10, the second freezing chamber 20, and the third freezing chamber 30 are respectively spaces for freezing food. In the present embodiment, the first freezing chamber 10 disposed at the bottom has the maximum capacity. The second freezing chamber 20 and the third freezing chamber 30 disposed on the upper side of the first freezing chamber 10 have a smaller capacity than the first freezing chamber 10. At least one of the second freezing chamber 20 and the third freezing chamber 30 can be an ice-making chamber. In the present embodiment, specifically, the third freezing chamber 30 is an ice-making chamber, and the second freezing chamber 20 and the first freezing chamber 10 are spaces for freezing and storing food and the like.

[0016] (Cooler 2, cold air passage 25, blow-out ports 23a, 23b, 24) like Figure 2 As shown, a cooler 2 is disposed in the housing 5. The cooler 2 generates cold air. The cold air generated by the cooler 2 is supplied to each of the rooms 10, 20, 30, 40, 50, so that the interior of each of the rooms 10, 20, 30, 40, 50 is cooled.

[0017] The cooler 2 is not particularly limited as long as it can supply cold air, and can be, for example, composed of a compressor, a condenser, an expander, an evaporator, and a refrigeration cycle including a refrigerant flowing through them, via a refrigerant pipe for circulating the refrigerant. The cooler 2 may also be provided with a fan for conveying the cold air generated by the cooler 2, a defrost heater for melting frost attached to the evaporator, and a damper for opening and closing the cold air passage 25.

[0018] like Figure 3 As shown, a cold air passage 25 serving as an air guide path for guiding the cold air from the cooler 2 is provided on the box body 5. The cold air passage 25 is provided on the back side of the freezer compartments 10, 20, 30. In addition, a first blow outlet 23a, a second blow outlet 23b, and a third blow outlet 24 opening to the cooling chamber are formed on the shell body 5. The first blow outlet 23a is equivalent to an example of a "blow outlet". The first blow outlet 23a, the second blow outlet 23b, and the third blow outlet 24 are respectively connected to the cold air passage 25. The cold air from the cooler 2 is supplied to the first blow outlet 23a, the second blow outlet 23b, and the third blow outlet 24 via the cold air passage 25, respectively.

[0019] The first outlet 23a and the second outlet 23b are respectively located at the back side of the first freezer compartment 10. The first outlet 23a and the second outlet 23b are respectively opened at the first freezer compartment 10. The first outlet 23a and the second outlet 23b respectively blow out the cold air supplied from the cooler 2 via the cold air passage 25 to the first freezer compartment 10. The second outlet 23b is provided at a position higher than the first outlet 23a.

[0020] The third outlet 24 is located at Figure 1 and Figure 2The third blow outlet 24 opens in the second freezer compartment 20. The third blow outlet 24 blows out the cold air supplied from the cooler 2 via the cold air passage 25 toward the second freezer compartment 20. Therefore, the first blow outlet 23a, the second blow outlet 23b, and the third blow outlet 24 are all supplied with cold air from the cooler 2 via the common cold air passage 25.

[0021] The opening area of ​​the third outlet 24 is smaller than that of the first outlet 23a. The opening area of ​​the third outlet 24 is preferably 30% to 90% of the opening area of ​​the first outlet 23a, and more preferably 40% to 80%.

[0022] Generally, the flow rate of cold air blown out from the outlet depends on the opening area of ​​the outlet. Therefore, in the cooling device 1 in which the opening area of ​​the first outlet 23a is larger than the opening area of ​​the third outlet 24, the flow rate of cold air blown out from the first outlet 23a to the first freezer 10 is greater than the flow rate of cold air blown out from the third outlet 24 to the third freezer 30.

[0023] Similarly, the second outlet 23b is also smaller than the first outlet 23a. The opening area of ​​the second outlet 23b is preferably 30% to 90% of the opening area of ​​the first outlet 23a, and more preferably 40% to 80%. The flow rate of cold air blown out from the first outlet 23a to the first freezer 10 is greater than the flow rate of cold air blown out from the second outlet 23b to the third freezer 30.

[0024] When the damper is in an open state, the cold air duct 25 is open. Therefore, when the damper is in an open state, the air blown by the fan is supplied to each cooling chamber through the cold air duct 25, specifically, to the first freezing chamber 10, the second freezing chamber 20, the third freezing chamber 30, the first refrigerating chamber 50, and the second refrigerating chamber 40. On the other hand, when the damper is in a closed state, the cold air duct 25 is closed. Therefore, when the damper is in a closed state, the cold air duct 25 becomes a non-open state, and cold air is not substantially supplied to each cooling chamber.

[0025] (First freezing chamber 10) like Figure 2 As shown, the opening of the first freezer compartment 10 is opened and closed by a door 11 located at the front side of the first freezer compartment 10. The door 11 can be displaced in the depth direction relative to the first freezer compartment 10. The door 11 is displaced to the front side from the state in which the opening of the first freezer compartment 10 is closed, thereby the opening of the first freezer compartment 10 is opened.

[0026] Specifically, a pair of left and right guides 112 are attached to the door 11. The guides 112 are guided in the depth direction by guide rails (not shown) provided on the housing 5 side, so that the door 11 is displaced in the depth direction.

[0027] (Cooling containers 102, 103) like Figure 2 and Figure 3 As shown, a cooling container 102 is disposed in the first freezing chamber 10. The cooling container 102 is disposed on the guide member 112, and when the door 11 is pulled out to the front side, the cooling container 102 is also displaced to the front side together with the guide member 112 and pulled out.

[0028] like Figure 2 As shown, in the first freezer compartment 10, in addition to the cooling container 102, a cooling container 103 is also arranged. The cooling container 103 is arranged above the cooling container 102. The cooling container 103 has a smaller height dimension than the cooling container 102. The cooling container 103 can be guided and pulled out in the front-to-back direction by a guide formed on the housing 5. The cooling container 103 is provided independently of the door 11 and the guide 112. Therefore, when the door 11 is pulled out, the cooling container 103 may also remain in the first freezer compartment 10.

[0029] The cooling container 103 is a container with an upper opening. The cooling container 103 is arranged at Figure 3 The first outlet 23a is located below the second outlet 23b shown in the figure, and the first outlet 23a is located below the opening of the cooling container 103. Therefore, cold air is mainly supplied to the cooling container 103 from the second outlet 23b.

[0030] The cooling container 102 is arranged below the cooling container 103. The cooling container 102 is a container which is open at the top. The cooling container 102 is arranged at a position lower than the first blowing outlet 23a. At least a portion of the first blowing outlet 23a is preferably substantially entirely arranged at a position lower than the lower surface of the cooling container 103 and higher than the opening of the cooling container 102. Therefore, cold air mainly from the first blowing outlet 23a flows into the cooling container 102. In this way, cold air from the second freezer 20, the cooling container 102, and the first blowing outlet 23a having the largest opening area in the cooling container 103 flows into the cooling container 103. As a result, the flow rate of cold air to the cooling container 103 becomes maximum.

[0031] The cooling container 102 has Figure 2 The bottom wall 102a and Figure 3The side walls 102b, 102c, front wall 102d and rear wall 102e shown. When the cooling container 102 is stored in the first freezer compartment 10, the bottom wall 102a is opposite to the bottom surface of the first freezer compartment 10 in the height direction. The side wall 102b extends upward from the end of one side in the width direction of the bottom wall 102a, and the side wall 102c extends upward from the end of the other side in the width direction of the bottom wall 102a. The side wall 102b is opposite to the side wall 102c in the width direction. The front wall 102d extends upward from the front end of the bottom wall 102a. The front wall 102d connects the front side end edge of the side wall 102b and the front side end edge of the side wall 102c. The rear wall 102e extends upward from the rear end of the bottom wall 102a. The rear wall 102e connects the rear side end edge of the side wall 102b and the rear side end edge of the side wall 102c. The rear wall 102e and the front wall 102d are opposite to each other in the depth direction. The opening of the cooling container 102 is formed by the rear wall 102e, the front wall 102d, the side wall 102b, and the side wall 102c.

[0032] like Figure 3 As shown, the opening of the first outlet 23a is located in front of the rear wall 102e. Therefore, the cold air from the first outlet 23a does not blow directly to the rear wall 102e. The cold air from the first outlet 23a is mainly blown to the front wall 102d.

[0033] (Tray 101) Figure 4 It is a perspective view showing a part of first freezing chamber 10 of cooling device 1. Figure 5 It is a top view of the cooling container 102 and the tray 101 . Figure 6 This is a perspective view of the tray 101 as viewed diagonally from below.

[0034] like Figure 2 to Figure 4 As shown, a tray 101 is provided in the first freezer compartment 10. The tray 101 is displaceable in the width direction within the first freezer compartment 10. In detail, the tray 101 is accommodated in a cooling container 102 provided in the first freezer compartment 10. Therefore, the front wall 102d is located at a position closer to the front side than the tray 101, and the rear wall 102e is located at a position closer to the rear side than the tray 101. The length of the tray 101 in the depth direction is substantially equal to the inner dimension of the cooling container 102 along the depth direction. In a state where the front end portion of the tray 101 is supported by the front wall 102d of the cooling container 102 and the rear end portion is supported by the rear wall 102e of the cooling container 102, the tray 101 is displaceable in the width direction within the cooling container 102. As Figure 3 As shown, the tray 101 may be located in front of the first blowing outlet 23a.

[0035] The tray 101 includes a tray body 111 and a cover 113. The tray body 111 has a space that is open upward. The cover 113 covers at least a portion of the opening 111H of the tray body 111. Therefore, it is possible to suppress the outflow of cold air from the tray body 111. Therefore, it is possible to make the cold air that flows into the tray body 111 stay in the tray body 111 for a long time. Therefore, the frozen object can be quickly obtained in the tray body 111.

[0036] Mainly as Figure 5 and Figure 6 As shown, the tray body 111 includes a bottom wall 101a, a pair of side walls 101f, a front wall 101d, and a rear wall 101e. The bottom wall 101a is opposite to the bottom wall 102a in the height direction. Food is placed on the bottom wall 101a.

[0037] The first side wall 101b extends upward from an end portion of one side in the width direction of the bottom wall 101a. The second side wall 101c extends upward from an end portion of the other side in the width direction of the bottom wall 101a. The first side wall 101b and the second side wall 101c are opposite to each other in the width direction. The front wall 101d extends upward from an end portion of the front side of the bottom wall 101a. The rear wall 101e is located closer to the first outlet 23a than the front wall 101d. The rear wall 101e extends upward from an end portion of the rear side of the bottom wall 101a. The opening 111H of the tray 101 is formed by the rear wall 101e, the front wall 101d, the first side wall 101b, and the second side wall 101c.

[0038] like Figures 4 to 6 As shown, the dimension L5 of the cover 113 in the front-to-back direction is shorter than the dimension L10 of the opening 111H in the front-to-back direction. Therefore, in this state, a portion of the opening 111H is covered by the cover 113, and the other portion is exposed from the cover 113. In addition, the front-to-back direction is a direction along the depth direction of the refrigerator. Specifically, the front-to-back direction indicates a direction along the direction from the front wall 101d toward the rear wall 101e when the tray 101 is arranged in the first freezer compartment 10 of the refrigerator. The dimension L5 is the distance from the first end 105 on one side of the cover 113 in the front-to-back direction to the second end 106 on the other side of the cover 113 in the front-to-back direction. The dimension L10 is the distance from the front wall 101d to the rear wall 101e.

[0039] like Figure 5As shown, the cover 113 exposes at least a portion of the opening 101H. For example, the cover 113 can be separated from the front wall 101d. In this case, the front end of the opening 101H is exposed from the cover 113. Therefore, the front end of the opening 101H can become an outlet for cold air. In addition, the cover 113 can also be away from the rear wall 101e. In this case, the rear end of the opening 101H is exposed from the cover 113. The rear end of the opening 101H can become an inlet for cold air. For example, when the cover 113 is configured so that the front end and the rear end of the opening 101H are exposed, cold air flows in from the portion of the opening 101H located on the rear side than the cover 113, and the cold air flows out from the portion of the opening 101H located on the front side than the cover 113 through the bottom of the cover 113. As a result, substantially the entire internal space of the tray 101 becomes an area where cold air circulates. Therefore, the cooling speed in the tray 101 can be further improved.

[0040] Furthermore, in this embodiment, the cover 113 covers the entire width direction of the opening 101H. Thus, the cold air is not easily leaked from the side of the cover 113. Therefore, the circulation of the cold air in the tray 101 can be further promoted. Therefore, the cooling speed in the tray 101 can be further increased.

[0041] In detail, Figure 5 As shown, one side of the cover 113 in the width direction is supported by the first side wall 101 b , and the other side is supported by the second side wall 101 c .

[0042] (Control Unit 3) Figure 7 It is a block diagram showing the control unit 3. The control unit 3 is a part that controls each mechanism of the cooling device 1. The control unit 3 may also include a processor such as a CPU (Central Processing Unit) or an ASIC (Application Specific Integrated Circuit) and a storage device. The storage device stores data and computer programs, for example. For example, the storage device temporarily stores data required for each process of the control unit 3, or stores setting data for the cooler 2. The storage device may also include a main storage device and an auxiliary storage device. The storage device may include, for example, a non-volatile memory, a hard disk drive, etc.

[0043] like Figure 7 As shown, the control unit 3 is connected to the cooler 2, for example. The control unit 3 causes the cooler 2 to execute a plurality of cooling modes including a first cooling mode and a second cooling mode. The second cooling mode is a mode in which cold air with a lower temperature and a higher flow rate than the first cooling mode is supplied to the blow-out ports 23a, 23b, and 24. The first cooling mode may be, for example, a normal freezing mode, and the second cooling mode may be, for example, a rapid freezing mode.

[0044] In the cooling device 1, an operating unit 4 is connected to the control unit 3. By operating the operating unit 4 by the user of the cooling device 1, the control unit 3 can select one of the execution of the first cooling mode and the execution of the second cooling mode. The operating unit 4 can be composed of, for example, a touch panel provided on the surface of the cooling device 1, or can be composed of one or more mechanical buttons. When the user selects the second cooling mode by operating the operating unit 4, the control unit 3 causes the cooler 2 to execute the second cooling mode. It can be set to automatically change to the first cooling mode after a specified time (for example, a time of more than 10 minutes and less than 1 hour) after the start of the second cooling mode, or it can be set to continue the second cooling mode before the user selects the first cooling mode by operating the operating unit 4, and change to the first cooling mode after the selection.

[0045] (Configuration of Tray 101) In this embodiment, for example, referring to Figure 5 , the width along the width direction of the portion located on the left side of the first blowing outlet 23a in the width direction of the first freezer 10 is substantially equal to the distance L3 between the left end of the first blowing outlet 23a and the side wall 102b of the cooling container 102. In addition, the width along the width direction of the portion located on the right side of the first blowing outlet 23a in the width direction of the first freezer 10 is substantially equal to the distance L4 between the right end of the first blowing outlet 23a and the side wall 102c of the cooling container 102. The width L1 along the width direction of the tray 101 is less than at least one of the distances L3 and L4. Specifically, in the present embodiment, the width L1 is less than L3, and more specifically, less than L3.

[0046] Therefore, by moving the tray 101 to the left end, the cold air from the first outlet 23a can be prevented from directly flowing into the tray 101. Thus, the cold air from the first outlet 23a can be effectively prevented from directly flowing into the tray 101 which is shallower than the cooling container 102 and causing the food arranged on the tray 101 to deteriorate due to the cold air.

[0047] In addition, if Figure 3 to Figure 5 As shown, by positioning the tray 101 in front of the first outlet 23a, the cold air from the first outlet 23a can flow directly into the tray 101. Figure 5As shown, the dimension L2 of the first blowing outlet 23a along the width direction is larger than the width L1 of the tray 101 along the width direction. Therefore, for example, by arranging the tray 101 so that the center of the tray 101 in the width direction is aligned with the center of the first blowing outlet 23a in the width direction, the cold air from the first blowing outlet 23a can flow directly into the entire tray 101. In this state, for example, by executing the rapid freezing mode, that is, the second cooling mode, the food in the tray 101 can be frozen at a high cooling rate. Moreover, in the blowing outlets 23a, 23b, and 24 for cold air relative to the freezing chambers 10, 20, and 30, the cold air can flow into the tray 101 from the first blowing outlet 23a having the largest opening area, so that a large amount of cold air can be guided to the tray 101. Therefore, further high-speed freezing can be achieved.

[0048] Furthermore, since the width L1 of the tray 101 is smaller than the opening width L2 of the first blowing outlet 23a, both sides of one of the two side walls 101b and 101c of the tray 101 are exposed to cold air. For example, when the tray 101 is arranged so that the center of the width direction coincides with the center of the width direction of the first blowing outlet 23a, both sides of the side walls 101b and 101c of the tray 101 are exposed to cold air. Thus, the cooling of the side walls 101b and 101c of the tray 101 is promoted. As a result, the cooling speed of the food in the tray 101 can be further increased.

[0049] In addition, since the width L1 is smaller than the dimension L2, the cold air from the first outlet 23a does not directly flow into the tray 101. Therefore, the cold air from the first outlet 23a directly flows into the cooling container 102 without passing through the tray 101. Therefore, the cooling speed of the food in the tray 101 can be increased, and the food in the cooling container 102 can also be cooled more ideally.

[0050] From the viewpoint of ensuring a sufficient amount of cold air flowing into the tray 101 and accelerating the cooling speed of the food in the tray 101, the width L1 of the tray 101 is preferably equal to or larger than the half of the width L2 of the first outlet 23a.

[0051] Figure 8 1 is a cross-sectional view of a portion of the cooling device 1. From the viewpoint of making it easier for cold air to flow into the tray 101, it is preferred that the inflow resistance from the first outlet 23a to the tray 101 be low. Figure 8In the cooling device 1 shown, in the setting state of the cooling device 1, the inclination angle of the rear wall 101e of the tray 101 relative to the vertical direction is greater than the inclination angle of the front wall 101d relative to the vertical direction. In other words, the angle formed by the rear wall 101e and the vertical direction is greater than the angle formed by the front wall 101d and the vertical direction. Therefore, the refrigerant flows smoothly into the tray 101 via the rear wall 101e. Therefore, the cooling speed of the food in the tray 101 can be further improved.

[0052] For example, Figure 8 As shown, the cold air from the first blowing outlet 23a flows into the interior of the tray 101 along the rear wall 101e of the tray 101. The cold air moving along the rear wall 101e of the tray 101 is depicted as cold air f1. Then, the cold air moves on the portion where the cover 113 and the bottom wall 101a are opposite. The cold air moving on the portion where the cover 113 and the bottom wall 101a are opposite is depicted as cold air f2.

[0053] like Figure 8 As shown, the front wall 102d is located in front of the tray 101 and reaches a position above the upper end of the tray 101. Therefore, the cold air moves along the front wall 101d. The cold air moving along the front wall 101d is depicted as cold air f3.

[0054] Furthermore, if Figure 5 As shown, in the cooling device 1, a through hole 102d1 is formed on the front wall 102d. When the tray 101 is arranged in front of the first blow-out port 23a, the through hole 102d1 is located in front of the tray 101 and above the tray 101. Therefore, the cold air flowing into the tray 101 can easily flow out of the tray 101 through the through hole 102d1 to the outside of the cooling container 102. That is, the cold air f3 flows from the tray 101 to the outside of the cooling container 102. Figure 5 The through hole 102d1 shown flows out of the cooling container 102. Therefore, the cold air is easily guided to the return flow path of the cold air provided outside the cooling container 102 of the first freezing chamber 10. Therefore, the cold air easily passes through the tray 101. As a result, the cooling efficiency of the food in the tray 101 can be further improved.

[0055] In the cooling device 1, when the second cooling mode is executed, the low-temperature and high-flow cold air blown out from the first blowing outlet 23a easily reaches the front wall 102d via the tray 101. Therefore, the temperature of the front wall 102d is easy to drop. For example, the temperature of the front wall 102d is easily lower than the temperature of the rear wall 102e. Therefore, the front wall 102d is more curved in the width direction than the rear wall 102e. For example, the curvature of the imaginary approximate arc of the front wall 102d when viewed from above is higher than the curvature of the imaginary approximate arc of the rear wall 102e. Therefore, even if the front wall 102d is cooled to a low temperature and shrinks, it is difficult for the front wall 102d to deform toward the rear wall 102e side unexpectedly. In detail, in the cooling device 1, the curvature of the front wall 102d is set so that when the front wall 102d is cooled to the temperature of the front wall 102d when the second cooling mode is executed, the front wall 102d is roughly parallel to the rear wall 102e. Therefore, even when the second cooling mode is executed, the tray 101 can be easily displaced in the width direction.

[0056] In addition, in the present embodiment, the width L1 is greater than the distance L4. Therefore, by positioning the tray 101 at the right end, the cold air from the first outlet 23a can be partially directly flowed into the tray 101. Therefore, three cooling methods can be implemented: positioning the tray 101 at the left end so that the cold air from the first outlet 23a does not flow directly into the tray 101; positioning the tray 101 at the right end so that the cold air from the first outlet 23a flows into a part of the tray 101; positioning the entire tray 101 in front of the first outlet 23a so that the cold air flows into the entire tray 101.

[0057] In addition, both the distances L3 and L4 may be larger than the width L1. In this case, by moving the tray 101 closer to the right and left sides, it is possible to reliably suppress the direct inflow of cold air from the first outlet 23a to the tray 101.

[0058] (Supporting method of tray 101) Below, refer to Figure 5 and Figure 6 , the supporting method of the tray 101 is described in more detail.

[0059] like Figure 6 As shown, the tray 101 further includes a portion 117 located on the front side of the front wall 101d and a portion 118 located on the rear side of the rear wall 101e.

[0060] The upper end of the portion 117 is connected to the front wall 101d. The lower end of the portion 117 is provided with a contact portion 117A. Specifically, a plurality of contact portions 117A are provided along the width direction at the lower end of the portion 117. The contact portion 117A is located above the bottom wall 101a.

[0061] The upper end of the portion 118 is connected to the rear wall 101e. The lower end of the portion 118 is provided with a contact portion 118A. Specifically, a plurality of contact portions 118A are provided along the width direction at the lower end of the portion 118. The contact portion 118A is located above the bottom wall 101a.

[0062] like Figure 5 As shown, a guide portion 128 is provided on the front wall 102d of the cooling container 102. The guide portion 128 has a surface extending in a substantially horizontal direction. The guide portion 128 is provided from one end portion in the width direction of the front wall 102d to the other end portion.

[0063] The guide portion 127 is provided on the rear wall 102e of the cooling container 102. The guide portion 127 has a surface extending in a substantially horizontal direction. The guide portion 127 is provided so as to extend from one end portion in the width direction of the rear wall 102e to the other end portion.

[0064] The tray 101 is formed into a shape that can be set in a state where the contact portion 117A of the portion 117 contacts the guide portion 128, and the contact portion 118A of the portion 118 contacts the guide portion 127. The contact portion 117A of the tray 101 slides on the guide portion 128, and the contact portion 118A slides on the guide portion 127, so that the tray 101 can slide in the width direction in the cooling container 102.

[0065] (Mark S) like Figure 4 and Figure 5 As shown, a mark S is provided on the cooling device 1. The mark S indicates a position corresponding to at least one end of the first blowing outlet 23a in the width direction. The mark S can be provided at a position substantially equal to the width direction position of at least one end of the first blowing outlet 23a in the width direction, for example, or at a position located outside or inside the width direction at a predetermined distance relative to one end.

[0066] In the cooling device 1, since the mark S is provided, the tray 101 can be easily and reliably arranged in front of the first air outlet 23a using the mark S as a mark.

[0067] From the viewpoint of making it easier and more reliable to realize the arrangement of the tray 101 in front of the first outlet 23a, the mark S preferably indicates a position corresponding to both one end and the other end of the width direction of the first outlet 23a. In this case, for example, even if a part of the mark S is blocked by the cooling object arranged in the cooling container 102 or is difficult to see, the tray 101 can be easily arranged. The mark S may also be set from one end to the other end in the width direction of the first outlet 23a, or from the inside of a specified distance of one end to the inside of a specified distance of the other end in the width direction of the first outlet 23a.

[0068] Specifically, in the present embodiment, the mark S includes a first mark S1 and a second mark S2. One of the first mark S1 and the second mark S2 is set at a position corresponding to one end of the first outlet 23a in the width direction, and the other is set at a position corresponding to the other end of the first outlet 23a in the width direction. The user of the cooling device 1 can reliably arrange the tray 101 in front of the first outlet 23a by arranging the tray 101 between the first mark S1 and the second mark S2.

[0069] In addition, the shape and size of each mark S1, S2 are not particularly limited. Each mark S1, S2 may be, for example, a polygonal shape such as a triangle, a dot shape, a circle, an ellipse, an oblong shape, etc. From the perspective of visibility, each mark S1, S2 is preferably an elongated shape with a height dimension larger than a width dimension.

[0070] The mark S may be formed of, for example, a seal material attached or bonded to the inner surface of the cooling container 102 , or may be formed in a concave or convex shape on the wall surface of the cooling container 102 .

[0071] In this embodiment, an example in which the mark S includes a plurality of marks is described. However, the present invention is not limited to this structure. The mark S may also be composed of, for example, one mark. For example, one mark S may also be formed from one end in the width direction of the first blowing port 23a to the other end.

[0072] Fig. 9 This is an enlarged stereoscopic view of the first blow-out port 23a. Fig. 9 As shown, a wall portion 230 for dividing and forming the first blowing outlet 23a is provided on the housing 5. The wall portion 230 includes an upper wall 231 located above the first blowing outlet 23a, a lower wall 232 located below the first blowing outlet 23a, and a pair of side walls 233 and 234 located outside the first blowing outlet 23a in the width direction.

[0073] A notch 232a is formed on the lower wall 232. The notch 232a is provided so as to span the inner side and the outer side of the tray 101 in the width direction when the tray 101 is arranged at the center of the first air outlet 23a in the width direction. Specifically, the notch 232a is provided so as to span the side wall 101c of the tray 101 in the width direction. The notch 232a allows cold air with a high specific gravity to flow downward easily, so in this embodiment, the cooling of the side wall 101c is further promoted. As a result, the cooling speed of the food and the like arranged in the tray 101 can be further increased.

[0074] Fig.10 Graph G1 is a graph showing the temperature change in the tray 101 of the present embodiment and the temperature change in the tray of Comparative Example 1. The tray of Comparative Example 1 does not have the top wall of the present embodiment. The horizontal axis of graph G1 represents time. The farther the horizontal axis of graph G1 is from the vertical axis, the more time has passed. The vertical axis of graph G1 represents temperature. The farther the vertical axis of graph G1 is from the horizontal axis, the higher the temperature. Graph G1 includes a solid line C1 and a dotted line C2. The solid line C1 represents the temperature change in the tray 101 having the cover 113. The dotted line C2 represents the temperature change in the tray of Comparative Example 1. In addition, graph G1 includes time point t1 and time point t2. Time point t1 represents the time when the second cooling mode is started. Time point t2 represents the time when the second cooling mode ends.

[0075] like Fig.10 As shown, the temperature of the tray 101 of the present embodiment before the time point t1 and the temperature of the tray of Comparative Example 1 are substantially the same temperature. Then, the temperature of the tray 101 of the present embodiment after the time point t1 is lower than the temperature of the tray of Comparative Example 1. In addition, the temperature of the tray 101 of the present embodiment becomes lower earlier than the temperature of the tray of Comparative Example 1. Moreover, the temperature of the tray 101 of the present embodiment after the time point t2 is lower than the temperature of the tray of Comparative Example 1. In addition, the temperature of the tray 101 of the present embodiment rises more slowly than the temperature of Comparative Example 1.

[0076] The following describes a modified example of the embodiment of the present disclosure. In the following description, components having substantially the same functions as the components described in the present embodiment are referenced by common reference numerals, and the description in the present embodiment is cited. In the modified example, only the parts that are different from the present embodiment are described, and the other parts are cited from the description in the present embodiment.

[0077] [Modification 1] Fig.111 is a perspective view of a tray 101 according to a first variation of the present embodiment. In the present embodiment, the cover 113 is fixed to the first side wall 101b and the second side wall 101c, but the present embodiment is not limited thereto. The tray 101 according to the first variation is mainly different from the tray 101 according to the present embodiment in that the cover 113 can move in the front-rear direction.

[0078] The cover 113 of the tray 101 according to Modification 1 is movable in the front-rear direction between the front and rear ends of the tray 101. The area of ​​the cold air inlet and the area of ​​the cold air outlet can be changed by the position of the cover 113.

[0079] Specifically, the further the cover 113 moves toward the front wall 102d, the larger the area of ​​the rear end portion of the opening 101H, and the smaller the area of ​​the front end portion of the opening 101H. In addition, the further the cover 113 moves toward the rear wall 102e, the larger the area of ​​the front end portion of the opening 101H, and the smaller the area of ​​the rear end portion of the opening 101H.

[0080] For example, the larger the area of ​​the rear end portion of the opening 101H exposed from the cover 113, the greater the amount of cold air that flows into the tray 101. The amount of cold air that flows out from the front end portion of the opening 101H is less than the amount of cold air that flows in from the rear end portion of the opening 101H. Therefore, the time that the cold air can be kept in the tray 101 becomes longer. Therefore, the food in the tray 101 can be cooled more quickly. In addition, in the case where the cover 113 is located on the rear side of the opening 101H, the area of ​​the front side portion of the opening 101H exposed from the cover 113 can be reduced. Therefore, for example, even if the door 11 of the first freezing chamber 10 is opened and warm air flows in, it is difficult for the warm air to flow into the tray 101. Therefore, the temperature rise in the tray 101 can be suppressed. As a result, for example, the temperature change of the coolant arranged in the tray 101 can be suppressed. For example, in the case where frozen food is arranged in the tray 101, since the temperature of the frozen food is not easy to change, the quality of the food is not easy to decrease.

[0081] On the other hand, the cover 113 is arranged on the rear side so that the area of ​​the rear end portion of the opening 101H exposed from the cover 113 is smaller, and it is more difficult for cold air to enter the tray 101. For example, when frozen food is arranged in the tray 101, if cold air continues to flow into the tray 101, the quality of the frozen food may be reduced due to the contact between the cold air and the frozen food. For example, the water content of the frozen food may become too low. Sometimes so-called freezer burns occur on the frozen food. From the viewpoint of suppressing this freezer burn, it is preferred to arrange the cover 113 on the rear side so that the area of ​​the portion of the opening 101H that is closer to the rear side than the cover 113 becomes smaller. This is because, in this way, the inflow of cold air can be suppressed.

[0082] In this embodiment, since the cover 113 is arranged to be displaceable in the front-to-back direction, the cover 113 can be displaced from a state where the cover 113 is arranged at the front side so that the cold air can flow easily into the tray 101 to a state where the cover 113 is arranged at the rear side so that the cold air cannot flow easily into the tray 101. In this way, since the cover 113 can be displaced in the front-to-back direction, the degree of the cold air flowing into the tray 101 can be adjusted.

[0083] Alternatively, the cover 113 and the tray 101 may be configured such that a portion of the cover 113 engages with a portion of the tray 101 so that the cover 113 can be fixed relative to the tray 101 at a predetermined position in the front-rear direction.

[0084] Fig.12 Graph G2 shows the temperature change in the tray 101 of Modification 1 of the present embodiment and the temperature change in the tray of Comparative Example 2. The length of the cold air inlet of the cover 113 of the tray 101 of Modification 1 in the front-to-back direction is longer than the length of the cold air outlet in the front-to-back direction. Specifically, the first end 105 of the cover 113 is in contact with the front wall 101d. The tray of Comparative Example 2 does not have the cover of the present embodiment.

[0085] The horizontal axis of the graph G2 represents time. The farther the horizontal axis of the graph G2 is from the vertical axis, the more time has passed. The vertical axis of the graph G2 represents temperature. The farther the vertical axis of the graph G2 is from the horizontal axis, the higher the temperature. The graph G2 includes a solid line C3 and a dotted line C4. The solid line C3 represents the temperature change in the tray 101 of the variant example 1. The dotted line C4 represents the temperature change in the tray of the comparative example 2. In addition, the graph G2 includes a time point t3 and a time point t4. The time point t3 represents the time when the defrosting is started. The time point t4 represents the time when the defrosting is finished.

[0086] like Fig.12 As shown, the temperature of the tray 101 of the modified example 1 before the time point t3 and the temperature of the tray of the comparative example 2 are substantially the same. Then, the temperature of the tray 101 of the modified example 1 after the time point t3 is lower than the temperature of the tray of the comparative example 2. Furthermore, the temperature of the tray 101 of the modified example 1 rises more slowly than the temperature of the tray of the comparative example 2. Moreover, the temperature of the tray 101 of the modified example 1 after the time point t4 is substantially the same as the temperature of the tray of the comparative example 2.

[0087] During defrosting, the air heated by the defrosting heater may flow into the freezing chamber. According to Modification 1, the inlet can be closed by the cover 113, so that the relatively high-temperature air flowing into the tray 101 can be reduced. As a result, the temperature change of the cooled food due to the air with a temperature higher than the room temperature of the first freezing chamber 10 can be reduced. In addition, when the area of ​​the inlet is reduced, the air heated by the dehumidification heater can also be reduced from flowing into the tray 101.

[0088] [Variations 2 to 4] Fig.13 It is a perspective view showing a tray 101 according to Modification 2 of the present embodiment. Fig.14 It is schematically shown Fig.13 A cross-sectional view of a cross section of the tray 101 is shown. Fig.15 This is a cross-sectional view schematically showing a cross section of a tray 101 according to Modification 3 of the present embodiment. Fig.16 It is a cross-sectional view schematically showing a cross section of a tray 101 according to Modification 4 of the present embodiment.

[0089] The trays 101 of Modifications 2 to 4 are mainly different from the tray 101 of the present embodiment in that the cover 113 is inclined.

[0090] like Fig.13 and Fig.14 As shown, the cover 113 of variant example 2 has a portion that is inclined in the front-to-back direction. In this embodiment, the cover 113 has a portion that is inclined downward as it moves from the rear side to the front side. More specifically, the entire cover 113 in the front-to-back direction is actually composed of an inclined surface that is inclined from the rear side to the front side toward the lower side. As a result, cold air can easily flow into the tray 101 from the rear side of the cover 113, and cold air is not easy to flow out of the tray 101. Therefore, the residence time of the cold air in the tray 101 can be extended. As a result, the cooling speed in the tray 101 can be increased.

[0091] In addition, the upper surface of the cover 113 may be, for example, in the shape of a flat plate.

[0092] In addition, as in the cover 113 of the modification example 3, the upper surface of the cover 113 may also be in the shape of a curved plate. Fig.15 As shown, the upper surface of the cover 113 is a curved surface. That is, the cover 113 has a curvature in the front-to-back direction. In addition, as in the cover 113 of the modification 4, the upper surface of the cover 113 may be a curved plate-like shape that is convex or concave downward. In addition, a part of the cover 113 may also be an inclined portion that is inclined relative to the front-to-back direction, and the remaining part may also be a horizontal portion that extends in the front-to-back direction.

[0093] [Variation 5] Fig.17 1 is a perspective view showing a tray 101 according to a fifth modification of the present embodiment. In the tray 101 according to the fifth modification, each of the first side wall 101b and the second side wall 101c has a through hole.

[0094] like Fig.17As shown, through holes 115 and 116 are formed on the first side wall 101b and the second side wall 101c. The through holes 115 and 116 are formed on the side walls 101b and 101c in a manner that they are located at a position closer to the front side than the front end of the cover 113 disposed at the rear side of the tray 101. Preferably, in a manner that the rear end of the tray 101 is exposed from the cover 113 and the front end of the tray 101 is also exposed from the cover 113, the through holes 115 and 116 are arranged so as to be located closer to the front side than the front end of the tray 101. In this case, the cold air that flows into the tray 101 and flows under the cover 113 flows out not only from the portion of the opening 101H located at the front side of the cover 113, but also flows out to the outside of the tray 101 from the through holes 115 and 116. As a result, the efficiency of exhausting the cold air from the tray 101 can be improved. Therefore, the ventilation efficiency of the cold air in the internal space of the tray 101 can be improved. As a result, the cooling rate of the object to be cooled in the tray 101 can be further increased.

[0095] In addition, the cold air flowing into the tray 101 can also easily flow into the area of ​​the cooling chamber outside the tray 101. Therefore, the cooling speed of the area of ​​the cooling chamber outside the tray 101 can also be increased.

[0096] In addition, the through holes 115 and 116 formed in the side walls 101b and 101c are not particularly limited as long as they penetrate the side walls 101b and 101c in the thickness direction. Fig.17 As shown in FIG. 1 , the through holes 115 and 116 may, for example, reach the upper edges of the side walls 101b and 101c. That is, the through holes may also be, for example, slits. Fig.18 As shown in the following modified examples, the through hole may also be surrounded by side walls. When the through hole is a slit, the through hole is preferably a shape in which the dimension in the front-to-back direction decreases downward. The through hole may also be roughly V-shaped or roughly U-shaped when viewed from above.

[0097] The through hole may be formed in only one of the pair of side walls.

[0098] [Variation 6] Fig.18 FIG. 1 is a perspective view showing a tray 101 according to a sixth modification of the present embodiment. Fig.18 In the modification 6 shown, the through holes 132 respectively provided on the pair of side walls 101b and 101c include a plurality of through holes 132a and 132b. In other words, in this modification, a plurality of through holes 132a and 132b are respectively formed on the pair of side walls 101b and 101c. The number of through holes formed on each side wall 101b and 101c is preferably 5 or less, and more preferably 3 or less, for example.

[0099] In this modification, the cover 113 is provided so as not to be displaceable relative to the tray 101. The rear end of the opening 101H is exposed from the cover 113, and the other part is covered by the cover 113. The front end of the opening 101H is covered by the cover 113.

[0100] Through holes 133, 134 are formed in at least one of the front wall 101d and the cover 113. Thus, even in the present modification in which the front end of the opening 101H is covered by the cover 113, since through holes 132, 133, 134 are formed in at least one of the side walls 101b, 101c, the front wall 101d and the cover 113, the cold air flowing into the tray 101 from the rear side of the cover 113 can also flow out of the tray 101 through the through holes 132, 133, 134. Thus, the cold air can pass through the internal space of the tray 101.

[0101] In the case where the cover 113 covers the front end of the opening 101H, from the viewpoint that cold air can pass through the internal space of the tray 101, a through hole may be formed in at least one of the side walls 101c, 101b, the front wall 101d, and the cover 113. From the viewpoint of promoting the supply of cold air to the entire internal space of the tray 101, it is preferred that a through hole is formed in the front wall 101d, or a through hole reaching the front end is formed in at least one of the side walls 101b, 101c, and the cover 113.

[0102] Hereinafter, in this modification, the specific form of the through-hole formed in the tray 101 and the cover 113 will be described in more detail.

[0103] A plurality of through holes 132a and 132b are formed on the side walls 101b and 101c, respectively. The through holes 132a and 132b are each elongated in the up-down direction. Specifically, the through holes 132a and 132b are each rectangular in the up-down direction. The plurality of through holes 132a and 132b are arranged at intervals from each other in the front-back direction (depth direction).

[0104] A plurality of through holes 133a to 133d are formed on the front wall 101d. The through holes 133a to 133d are each elongated in the vertical direction. Specifically, the through holes 133a to 133d are each rectangular in shape extending in the vertical direction. The through holes 133a to 133d reach the upper edge of the front wall 101d. The through holes 133a to 133d are arranged at intervals from each other in the width direction (left-right direction).

[0105] A plurality of through holes 134a to 134d are formed on the cover 113. The through holes 134a to 134d reach the front end edge of the cover 113, respectively. The through holes 134a to 134d are respectively provided corresponding to the positions where the through holes 133a to 133d are provided. The through holes 134a to 134d are respectively connected to the through holes 133a to 133d and provided as a whole. It is preferred that the through holes 134a to 134d include a portion located on the front side of the rear end of the through hole 132 provided on the side walls 101b and 101c. In this modified example, the entirety of the through holes 134a to 134d is located on the front side of the rear end of the through hole 132 provided on the side walls 101b and 101c.

[0106] Furthermore, the through hole provided in the cover 113 does not necessarily reach the front end side of the cover 113. The through hole that does not reach the front end side of the cover 113 may be formed in the cover 113.

[0107] The number of through holes 133 provided in the front wall 101d and the number of through holes 134 provided in the cover 113 are preferably greater than the number of through holes 132 provided in the side walls 101b and 101c. The total area of ​​the through holes 133 provided in the front wall 101d and the through holes 134 provided in the cover 113 is preferably greater than the total area of ​​the through holes 132 provided in the side walls 101b and 101c.

[0108] As a further modification of this modification, there may be a modification in which the front wall is not provided.

[0109] [Variation 7] Fig.19 It is a perspective view showing a tray 101 according to Modification 7 of the present embodiment. Fig. 20 It is schematically shown Fig.19 A cross-sectional view of a cross section of the tray 101 is shown.

[0110] In the above-mentioned embodiment and modification, an example in which the cover 113 is provided from one end to the other end in the width direction of the opening 101H is described. In other words, an example in which the cover 113 covers the entire width direction of the opening 101H is described. However, the present invention is not limited to this structure. In the present invention, the cover only needs to cover at least a portion of the opening of the tray body, and does not necessarily need to cover the entire opening.

[0111] like Fig.19 as well as Fig. 20As shown, in this modification, the cover 113 covers at least one of the two ends of the opening 101H in the width direction. In detail, the cover 113 covers the two ends of the opening 101H in the width direction. In this modification, the cold air flowing into the tray 101 from the opening 101H is also suppressed from flowing out of the tray 101 in the area where the cover 113 is provided in the front-to-back direction. Therefore, the cold air easily flows through the entire internal space of the tray 101. Therefore, the cooling speed of the object to be cooled arranged on the tray 101 can be effectively improved.

[0112] In this modified example, the cover 113 includes a cover piece 121 extending from the side wall 101b toward the center side in the width direction, and a cover piece 122 extending from the side wall 101c toward the center side in the width direction. The cover pieces 121 and 122 are each in the shape of a curved plate. Specifically, the cover pieces 121 and 122 are each in the shape of a curved plate whose center of curvature is located closer to the center side in the width direction than the cover pieces 121 and 122 when viewed from the front-back direction. The front end portions of the cover pieces 121 and 122 are located closer to the center side in the width direction than the side walls 101b and 101c.

[0113] The shape of the cover pieces 121 and 122 is not necessarily limited to the curved plate shape, and the cover pieces 121 and 122 may be, for example, flat plates extending obliquely upward toward the center in the width direction.

[0114] [Variation 8] Fig.21 It is a perspective view showing a tray 101 according to Modification 8 of the present embodiment. Fig. 22 This is another perspective view showing the tray 101 according to the eighth modification of the present embodiment.

[0115] In the above-mentioned embodiments and variations, the cover 113 is described as an example in which the cover 113 cannot be deformed. In contrast, in this variation 8, the cover 113 can be deformed. Specifically, Fig.21 , Fig. 22As shown, the cover 113 can be deformed between a first mode in which the dimension in the front-to-back direction is short and a second mode in which the dimension in the front-to-back direction is long. In detail, the cover 13 has a plurality of cover pieces 113a and 113b. The plurality of cover pieces 113a and 1113b are respectively arranged in a manner to cover the entire opening 101H in the width direction. At least one of the plurality of cover pieces 113a and 113b can slide along the front-to-back direction. For example, in a state in which at least two of the plurality of cover pieces 113a and 113b overlap in a portion in the front-to-back direction, the dimension in the front-to-back direction of the cover 113 becomes smaller. According to this mode, the smaller the dimension in the front-to-back direction of the overlapping portion of at least two of the plurality of cover pieces 113a and 113b is, the longer the dimension in the front-to-back direction of the opening 101H covered by the cover 113 is. In other words, the length in the front-to-back direction of the portion of the opening 101H exposed from the cover 113 becomes longer, and becomes a large area.

[0116] In the manner in which all the multiple cover pieces 113a and 113b overlap in the front-to-back direction, the overall front-to-back dimension of the cover 113 is smaller than the front-to-back dimension of the opening 101H. The cover 113 may also be configured by reducing the overlapping portion of the multiple cover pieces so that the cover 113 can cover the entire opening 101H. In this case, the cover 113 may also be configured in a form in which multiple cover pieces overlap to increase the cooling speed of the object to be cooled in the tray 101, and the cover 113 may be configured in an expanded form to suppress the inflow of cold air into the tray 101 and suppress the flow of cold air from the object to be cooled.

[0117] The lengths of the plurality of cover sheets 113a and 113b in the front-rear direction may be the same, or cover sheets having different lengths in the front-rear direction may be included. In addition, the thicknesses of the plurality of cover sheets 113a and 113b may be the same, or cover sheets having different thicknesses may be included.

[0118] The embodiments of the present disclosure are described above with reference to the accompanying drawings. However, the present disclosure is not limited to the above-mentioned embodiments, and can be implemented in various ways without departing from the scope of the main purpose thereof. In addition, by appropriately combining the multiple components disclosed in the above-mentioned various modified examples, various disclosed formations can be performed. For example, several components can also be deleted from all the components shown in the embodiment. Furthermore, components across different modified examples can also be appropriately combined. For ease of understanding, the accompanying drawings are schematically shown with each component as the main component, and the thickness, length, number, spacing, etc. of each component shown in the drawings are different from the actual ones due to the convenience of making the drawings. In addition, the speed, material, shape, size, etc. of each component shown in the above-mentioned embodiment are just examples, and are not particularly limited. Various changes can be made within the scope of the configuration that does not substantially depart from the present disclosure.

Claims

1. A tray capable of being located in front of a blow-out port for blowing out cold air in a cooling chamber of a cooling device, characterized in that: have: a tray body having a space open upward; and A cover covers at least a portion of the opening of the tray body.

2. The pallet according to claim 1, characterized in that: A dimension of the cover in the front-rear direction is shorter than a dimension of the opening in the front-rear direction.

3. The pallet according to claim 2, characterized in that: The cover can be fixed in a state where at least one of the front end portion and the rear end portion of the opening is exposed.

4. The pallet according to claim 1, characterized in that: The cover is deformable in a manner that a dimension in the front-rear direction changes, and in a manner in which the dimension in the front-rear direction is minimum, the dimension in the front-rear direction of the cover is shorter than the dimension in the front-rear direction of the opening.

5. The pallet according to claim 4, characterized in that: The cover can cover the entirety of the opening.

6. The pallet according to claim 1, characterized in that: The cover can cover the entire width direction of the opening.

7. The pallet according to claim 1, characterized in that: The tray body includes a pair of side walls provided on both sides of the opening in a width direction. The cover has: a first cover sheet extending from one side of the pair of side walls toward the other side; and The second cover piece extends from the other of the pair of side walls toward one side and is separated from the first cover piece.

8. The pallet according to claim 1, characterized in that: The cover has a portion inclined in the front-rear direction.

9. The pallet according to claim 1, characterized in that: The tray body includes a pair of side walls provided on both sides of the opening in a width direction. A through hole is formed in a front portion of at least one of the pair of side walls.

10. A cooling device, characterized in that: have: The pallet according to any one of claims 1 to 9; and a device body, which is formed with the cooling chamber and the blowing outlet opening in the cooling chamber, The tray can be arranged in front of the air outlet.

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