Cooling storage

Abstract

The present invention provides a cooling storage facility equipped with a hinged door on the top surface, which can reduce fogging of the hinged door. [Solution] The cooling storage facility comprises a cooling storage facility body, a display room located inside the cooling storage facility body and opening upward, and a hinged door with a heater that opens and closes the opening of the display room, wherein a machine room containing a compressor and a condenser is located outside the display room wall surrounding the display room, the hinged door is arranged to open and close vertically starting from the rear of the cooling storage facility body, and is equipped with an exhaust duct located adjacent to the front wall of the display room wall for carrying exhaust from the machine room, and when the hinged door is opened, the exhaust duct and the display room side of the hinged door are in communication.

Description

[Technical Field]

[0001] The present disclosure relates to a cold storage. [Background Art]

[0002] Patent Document 1 discloses a technology of a cold air circulation type flat showcase having an open top surface, in which cold air circulates between an outer box and an inner container. [Prior Art Document] [Patent Document]

[0003] [Patent Document 1] Japanese Unexamined Patent Application Publication No. 2014-134296 [Summary of the Invention] [Problem to be Solved by the Invention]

[0004] The present disclosure provides a cold storage provided with a flip-up door on a top surface, the cold storage being capable of reducing fogging on the flip-up door. [Means for Solving the Problem]

[0005] The cold storage according to the present disclosure is a cold storage comprising: a cold storage main body; a display chamber provided inside the cold storage main body and opening upward; and a flip-up door that opens and closes an opening of the display chamber and includes a heater, wherein a machine room in which a compressor and a condenser are arranged is provided outside a display chamber wall surrounding the display chamber, the flip-up door is arranged to be openable and closable up and down with a rear portion of the cold storage main body as a starting point, an exhaust duct provided at a position adjacent to a front wall of the display chamber wall and allowing exhaust air from the machine room to flow therethrough is provided, and when the flip-up door is opened, the exhaust duct communicates with a display chamber side of the flip-up door. [Effect of the Invention]

[0006] In the cooling storage facility described herein, when the hinged door is opened, exhaust from the exhaust duct can be directed towards the display room side of the hinged door, thereby reducing fogging of the hinged door. [Brief explanation of the drawing]

[0007] [Figure 1] Perspective view of the cooling storage unit in Embodiment 1 [Figure 2] Side cross-sectional view of the cooling storage unit in Embodiment 1 [Figure 3] Perspective view showing a flip-up door in Embodiment 1 [Figure 4] Plan view showing the machine room in Embodiment 1 [Figure 5] Enlarged view of area A in Figure 2 when the flip-up door in Embodiment 1 is closed. [Figure 6] Enlarged view of area A in Figure 2 when the hinged door in Embodiment 1 is open. [Modes for carrying out the invention]

[0008] (Knowledge and other information that formed the basis of this disclosure) At the time the inventors conceived of this disclosure, there was a technology that suppressed fogging of the glass surface when the door was open by applying an anti-fog film to the glass surface of a refrigerated storage unit with a hinged door and a transparent glass surface on top. There was also a technology that suppressed fogging of the glass surface when the door was open by installing a heater on the door. However, the inventors discovered that with the conventional technology, if the film was scratched, the transmittance decreased and visibility deteriorated, and if a heater was installed, the power consumption of the refrigerated storage unit increased. To solve these problems, the subject matter of this disclosure was established. Therefore, this disclosure provides a cooling storage unit that can reduce fogging of the hinged door.

[0009] The embodiments will be described in detail below with reference to the drawings. However, some unnecessarily detailed explanations may be omitted. For example, detailed explanations of already well-known matters or redundant explanations of substantially identical configurations may be omitted. The attached drawings and the following description are provided to enable those skilled in the art to fully understand this disclosure and are not intended to limit the subject matter described in the claims.

[0010] In each diagram, the forward, left, and upward directions refer to the side where the user's customers stand, with the rear being the side where the user of the refrigerated storage unit stands.

[0011] (Embodiment 1) [1-1. Structure] [1-1-1. Configuration of the Cooling Storage Facility] Figure 1 is a perspective view of the cooling storage unit 1 in Embodiment 1. Figure 2 is a side cross-sectional view of the cooling storage unit 1. In Figure 2, arrow S1 indicates the airflow in the cooling duct 21 generated by the operation of the cooling fan 23. Arrow S2 indicates the airflow in the machine room 40 generated by the operation of the blower fan 43.

[0012] The refrigerated storage unit 1 in this embodiment is a flat-type refrigerated storage unit that displays products while freezing them. The cooling storage unit 1 comprises a cooling storage unit body 5 and a hinged door 12. The cooling storage unit 1 is rectangular in plan view, and the cooling storage unit body 5 comprises a box-shaped enclosure 10 with an internal space. As shown in Figure 2, inside the enclosure 10 surrounding the cooling storage unit body 5, there is an exhaust duct 47 (described later) and an insulated chamber 20 surrounded by an insulated wall (display room wall) 19. An opening 11 that opens upward is formed on the top surface of the cooling storage unit body 5. The insulated wall 19 supports the hinged door 12 at its top. Users of the cooling storage unit 1 can freely open and close the opening 11 using the hinged door 12. The housing 10 has an intake port 44 at the lower front, through which air flows into the machine room 40, which will be described later. Also, as shown in Figure 2, an exhaust port 45 is formed at the lower rear of the housing 10, through which air from the machine room 40 is exhausted.

[0013] A cooling storage main body 5 includes a heat insulation chamber 20. The heat insulation chamber 20 is a box-shaped body configured to be surrounded by a heat insulation wall 19, and is provided inside a housing 10.

[0014] A machine chamber 40 is provided below the heat insulation chamber 20. An exhaust duct 47 is provided between the housing 10 and the heat insulation chamber 20 and in front of the heat insulation chamber 20. A compressor 41 (see FIG. 4), a condenser 42, and a blower fan 43 are arranged in the machine chamber 40.

[0015] The heat insulation chamber 20 includes a display chamber 30, and a cooling duct 21 provided between the heat insulation wall 19 and the display chamber 30. The cooling duct 21 is provided along the heat insulation wall 19 across the side surface and the bottom surface of the display chamber 30. An evaporator 22 and a cooling fan 23 are arranged in the cooling duct 21. The evaporator 22 is connected to the compressor 41 and the condenser 42 in the machine chamber 40 via a refrigerant pipe (not shown) to form a cooling circuit. Cooled air circulates through the cooling duct 21.

[0016] The display chamber 30 according to the present embodiment is substantially L-shaped in a side view. The display chamber 30 has a deep rear display portion 31 provided at a rear portion of the display chamber 30, and a shallow front display portion 32 provided at a front portion of the display chamber 30. An interior of the cooling duct 21 below the front display portion 32 forms a space where the cooling fan 23 is arranged. Further, as shown in FIG. 1, the display chamber 30 is partitioned into four spaces in the left-right direction by partition plates 33.

[0017] A cool air outlet 24 for blowing out cooled air is formed at an upper front end of the cooling duct 21. A cool air inlet 25 for sucking in air blown out from the cool air outlet 24 is formed at an upper rear end of the cooling duct 21. An inlet cover 26 is provided at the cool air inlet 25. The inlet cover 26 is a flat metal plate formed such that a plurality of vertically long rectangular holes are arranged in the left-right direction.

[0018] Figure 3 is a perspective view showing the hinged door 12. In this embodiment, the flip-up door 12 includes a door section 13, and a hinge mechanism 50 is provided attached to the door section 13. The hinge mechanism 50 connects the upper front of the insulated wall 19 to the front end of the door section 13, and supports the flip-up door 12 so that it can be opened and closed vertically with the left-right direction as the axis of rotation. The hinge mechanism 50 is equipped with a spring or damper (not shown) and plays the role of holding the flip-up door 12 in a specific position when the user opens it. As shown in Figures 1 and 2, the hinge mechanism 50 is covered at the front and upper by the guide portion 51. The guide portion 51 is provided across the entire left-right direction (width direction) of the housing 10.

[0019] Each door section 13 has a transparent plate 15 such as glass, a rectangular frame 14 provided on the outer end of the transparent plate 15, and a gripping section 16 provided on the rear end (one end) of the frame 14. In other words, the user can grasp the gripping section 16 and open and close the hinged door 12 in the vertical direction.

[0020] A heater 17 is positioned inside the frame 14. Another heater 17 is also positioned in the transparent plate 15 (not shown). Power supply wiring 18 is connected to the heater 17. The power supply wiring 18 extends out of the frame 14 through a round hole 14a formed at the front end of the frame 14. The power supply wiring 18 is connected to an electrical box (not shown). Power is supplied to the heater 17 from the electrical box connected to the power supply via the power supply wiring 18. As a result, the heater 17 is energized and the door section 13 is heated. By heating the door section 13, the temperature difference with the outside air can be reduced. This prevents condensation from forming on the transparent plate 15 and prevents the transparent plate 15 from fogging up when the flip-up door 12 is closed.

[0021] The hinged doors 12 are formed to be openable and closable for each partitioned space in the display room 30. That is, the refrigerated storage unit 1 according to this embodiment has four hinged doors 12, as shown in Figure 1. Users of the refrigerated storage unit 1 can access the corresponding display room 30 by opening and closing each hinged door 12.

[0022] [1-1-2. Ventilation configuration for the lift-up door] Figure 4 is a plan view showing the machine room 40. As shown in Figures 2 and 4, the display room 30 is surrounded by an insulating wall 19, except for an opening 11 provided at the top. The insulating wall 19 in this embodiment is an example of a "display room wall" (Claim 1). Below the insulating wall 19 surrounding the display room 30 is a machine room 40 where a compressor 41 and a condenser 42 are located. An exhaust duct 47 is formed between the front wall 19a of the insulated wall 19 and the front surface 10a of the housing 10, through which exhaust from the machine room 40 flows.

[0023] As shown in Figure 4, in the machine room 40, the compressor 41 is located on the left side at the front when viewed from the front of the cooling storage room 1, and the condenser 42 is located on the right side at the front when viewed from the front of the cooling storage room 1. Behind the condenser 42, adjacent to the condenser 42, three blower fans 43 are arranged at equal intervals in the left-right direction.

[0024] The left space L1, where the compressor 41 is located, and the right space R1, where the condenser 42 is located, are separated by a partition plate 46 that extends vertically. The rear of the partition plate 46 is located adjacent to the insulating wall 19 in the height direction, separating the left space L1 from the right space R1. Here, the left space L1 refers to the space below the lower end of the front wall 19a of the insulated wall 19. Similarly, the right space R1 refers to the space below the lower end of the front wall 19a of the insulated wall 19.

[0025] The left space L1 is connected to the exhaust duct 47 located above the left space L1.

[0026] The suction port 44 is formed at the lower part of the front surface 10a of the housing 10, in a location that communicates with the right space R1. The suction port 44 is not formed at the lower part of the front surface 10a of the housing 10, in a location that communicates with the left space L1. The suction port 44 is formed in a position opposite the condenser 42.

[0027] Behind the condenser 42, an exhaust-side air passage 49 is provided through which the air that has undergone heat exchange by the condenser 42 flows. The exhaust port 45 is formed at the lower part of the rear surface 10b of the housing 10, where it communicates with the exhaust-side air passage 49.

[0028] The surrounding air heated by the condenser 42 flows partly through the left space L1 to the exhaust duct 47, and partly blows out from the exhaust port 45 through the exhaust side air passage 49.

[0029] The partition plate 46 may have a height sufficient to separate the left space L1 and the right space R1 from left to right. In this case, the partition plate 46 does not necessarily have to separate the exhaust duct 47 from left to right all the way up.

[0030] Figure 5 is an enlarged view of area A in Figure 2 when the flip-up door 12 is closed. Figure 6 is an enlarged view of area A in Figure 2 when the flip-up door 12 is open. The exhaust duct 47 has an inclined section 47b at its front upper end that slopes toward the rear. From the rear end of the inclined section 47b, there is an exhaust duct rear wall 47c that extends downward along the insulating wall 19, substantially perpendicular to the horizontal plane.

[0031] As described above, the hinge mechanism 50 connects the upper front of the insulated wall 19 to the front end of the door section 13, allowing the lift-up door 12 to open and close vertically. The hinge mechanism 50 is housed within the exhaust duct 47.

[0032] As shown in Figure 5, when the hinged door 12 is closed, the guide section 51, together with the front of the exhaust duct 47 and the top of the hinged door 12, forms a wall surface extending from the front to the top of the cooling storage unit 5. The opening 47a of the exhaust duct 47 is covered by the guide section 51. The guide section 51 is provided for each hinged door 12, extending across the entire left and right front end of the door section 13. In this embodiment, four guide sections 51 are provided.

[0033] Furthermore, as shown in Figure 6, the guide section 51 is positioned to form the front side of the cooling storage unit body 5 together with the front of the exhaust duct 47 and the top surface of the lift-up door 12, even when the lift-up door 12 is opened.

[0034] The guide section 51 includes a top plate 51a that covers the top surface of the hinge mechanism 50 when the flip-up door 12 is closed, and a front plate 51b that bends from the front end of the top plate 51a and extends into the exhaust duct 47 along the front surface of the insulated wall 19.

[0035] The opening 47a of the exhaust duct 47 is not completely covered by the guide portion 51, and a gap is formed between the guide portion 51 and the front end of the exhaust duct 47. In this embodiment, there is a closed door gap S3 between the front plate 51b of the guide portion 51 and the rear wall 47c of the exhaust duct 47. The closed door gap S3 in this embodiment is an example of a "gap" (claim 5). Furthermore, as shown in Figure 6, when the hinged door 12 is open, there is an opening gap S4 between the front end of the top panel 51a and the rear wall 47c of the exhaust duct. The opening gap S4 in this embodiment is an example of a "gap" (claim 6). In this embodiment, when the hinged door 12 is opened and closed, the closed door gap S3 and the open door gap S4 prevent interference between the guide portion 51 and the exhaust duct 47 during the opening and closing of the hinged door 12.

[0036] The closed door gap S3 and the open door gap S4 are provided to allow the lift-up door 12 to open and close smoothly without interference between the guide section 51 and the exhaust duct 47, while also preventing air from leaking through the exhaust duct 47 from the closed door gap S3 and the open door gap S4. The closed door gap S3 and the open door gap S4 may be formed to be the smallest gap that prevents interference between the guide section 51 and the exhaust duct 47. In this case, it is possible to suppress the air blown out of the opening of the exhaust duct 47 to the outside of the cooling storage unit body 5.

[0037] As shown in Figures 5 and 6, a packing 35 is provided at the base 12a of the hinged door 12. More specifically, the packing 35 is provided on the lower surface of the front end of the door section 13. The packing 35 is provided at the four corners of each door section 13. When the hinged door 12 is closed, the packing 35 is in close contact with the upper part of the cooling storage unit body 5. This efficiently narrows the space between the cooling storage unit body 5 and the door section 13, suppressing the airflow from the exhaust duct 47 toward the display room 30.

[0038] When the hinged door 12 is open, an air intake S5 is provided between the inside of the door section 13 and the housing 10. In other words, the exhaust duct 47 and the display room 30 side of the hinged door 12 are in communication.

[0039] [1-2. Operation, effect] When the cooling storage unit 1 is activated, refrigerant is discharged from the compressor 41, condensed in the condenser 42, and then supplied to the evaporator 22. The refrigerant evaporated in the evaporator 22 is returned to the compressor 41. At this time, heat exchange occurs between the refrigerant and the surrounding air in the evaporator 22 and the condenser 42, with the air around the evaporator 22 being cooled and the air around the condenser 42 being heated.

[0040] The cooled air around the evaporator 22 is blown out by the cooling fan 23 in the cooling duct 21. As shown by arrow S1 in Figure 2, the cooled air circulates around the display room 30, cooling the inside of the display room 30.

[0041] In the machine room 40, outside air is drawn in through the intake port 44 at the front lower part of the chassis 10 by the operation of a blower fan 43 located in the machine room 40. The drawn-in air is guided from the right space R1 to the condenser 42, where it undergoes heat exchange with the refrigerant and is heated. The surrounding air heated by the condenser 42 flows partly through the left space L1 to the exhaust duct 47, and partly blows out through the exhaust side air passage 49 from the exhaust port 45 at the rear lower part of the chassis 10.

[0042] Although the exhaust duct 47 is open at the top, when the hinged door 12 is closed, the gap between the housing 10 and the door section 13 is sealed by the packings 35 provided at the four corners of the lower surface of the frame 14. Therefore, no air flows against the inner surface 13a of the door section 13 (the side facing the display room 30).

[0043] As shown by arrow S6 in Figure 6, the air passing through the exhaust duct 47 is guided to the air intake S5 by the inclined portion 47b and guide portion 51 of the exhaust duct 47, and air flows from the air intake S5 to the inner surface of the door portion 13. This air warms the door portion 13, reducing the temperature difference with the outside air. Therefore, when the hinged door 12 is opened, condensation is less likely to occur on the transparent plate 15, and fogging of the transparent plate 15 can be suppressed.

[0044] [1-3. Effects, etc.] As described above, according to this embodiment, the cooling storage unit 1 comprises a cooling storage unit body 5, a display room 30 located inside the cooling storage unit body 5 and opening upwards, and a hinged door 12 that opens and closes the opening of the display room 30 and has a heater 17. Outside the insulating wall 19 surrounding the display room 30, there is a machine room 40 where a compressor 41 and a condenser 42 are located. The hinged door 12 is arranged to open and close vertically starting from the rear of the cooling storage unit body 5 and is provided with an exhaust duct 47 located adjacent to the front wall 19a of the insulating wall 19 for carrying exhaust from the machine room 40. When the hinged door 12 is opened, the exhaust duct 47 and the display room 30 side of the hinged door 12 are in communication. According to this design, when the hinged door 12 is opened, the exhaust from the exhaust duct 47 can be directed towards the display compartment 30 side of the hinged door 12, thereby reducing fogging of the hinged door 12. In addition, since the air heated by heat exchange with the condenser 42 hits the display compartment 30 side of the hinged door 12, the capacity of the heater 17 can be reduced. Therefore, the power consumption of the heater 17 can be reduced, and fogging generated on the hinged door 12 can be suppressed efficiently.

[0045] The hinged door 12 is provided with a guide section 51 that extends outward from the base 12a of the hinged door 12 and guides the exhaust from the exhaust duct 47 towards the display room 30 when the hinged door 12 is opened. According to this, when the hinged door 12 is opened, the exhaust from the exhaust duct 47 can be easily guided towards the display room 30 side of the hinged door 12.

[0046] The hinged door 12 is provided with a packing 35 that extends outward from the base 12a of the hinged door 12 and is in close contact with the upper part of the cooling storage unit body 5 when the hinged door 12 is closed. According to this, when the hinged door 12 is opened, the exhaust from the exhaust duct 47 can be directed towards the display room 30 side of the hinged door 12, while when the hinged door 12 is closed, it is possible to prevent the exhaust from the exhaust duct 47 from entering the display room 30 side of the hinged door 12.

[0047] The guide section 51 is positioned to form a wall surface from the front to the top of the cooling storage unit body 5, together with the front of the exhaust duct 47 and the top of the lift-up door 12, when the lift-up door 12 is closed, and to form the rear of the cooling storage unit body 5, together with the rear of the exhaust duct 47 and the top of the lift-up door 12, when the lift-up door 12 is open. According to this, when the flip-up door 12 is opened, the exhaust from the exhaust duct 47 can be directed towards the display room 30 side of the flip-up door 12, and when the flip-up door 12 is closed, the guide section 51 can be effectively utilized as part of the main body of the cooling storage unit 5.

[0048] Between the tip of the exhaust duct 47 and the guide section 51, there is a closing gap S3 that allows the flip-up door 12 to be opened and closed vertically when the flip-up door 12 is closed. According to this, since only a gap sufficient to allow the hinged door 12 to be opened and closed vertically is provided, the hinged door 12 can be easily opened and closed without the need for additional components.

[0049] Between the tip of the exhaust duct 47 and the guide section 51, there is an opening gap S4 that allows the flip-up door 12 to be opened and closed vertically when the flip-up door 12 is opened. According to this, when the hinged door 12 is opened, only a gap S4 is provided that allows the hinged door 12 to be opened and closed vertically. Therefore, when the hinged door 12 is opened, exhaust from the exhaust duct 47 is prevented from being discharged between the tip of the exhaust duct 47 and the guide portion 51, and the exhaust from the exhaust duct 47 can be efficiently directed towards the display room 30 side of the hinged door 12.

[0050] The machine room 40 is located below the insulated wall 19 surrounding the display room 30 and includes an intake port 44 that is open when viewed from the front and an exhaust duct 47 that is closed when viewed from the front. The intake port 44 and the exhaust duct 47 are separated by a partition plate 46 that extends vertically, and the exhaust duct 47 communicates with the display room 30 side of the hinged door 12 when the hinged door 12 is opened from the machine room 40, along the vertical direction of the front wall 19a of the insulated wall 19. According to this, by efficiently performing intake and exhaust, when the flip-up door 12 is opened, the exhaust from the exhaust duct 47 can be directed towards the display room 30 side of the flip-up door 12.

[0051] The machine room 40 is equipped with an exhaust port 45 on the rear side of the cooling storage unit 5. According to this, even when the hinged door 12 is closed, exhaust is carried out from the exhaust port 45, thus preventing exhaust from accumulating in the cooling storage unit body 5 when the hinged door 12 is closed.

[0052] (Other embodiments) As described above, Embodiment 1 has been presented as an example disclosed in this application. However, the technology in this disclosure is not limited to this and can be applied to embodiments that have been modified, replaced, added, or omitted. Furthermore, it is possible to create new embodiments by combining the components described in Embodiment 1. Therefore, other embodiments are illustrated below.

[0053] For example, a second blower fan may be installed in the machine room 40 or the exhaust duct 47 so that when the flip-up door 12 is opened, the second blower fan is activated and the air from the machine room 40 is sent to the exhaust duct 47. This configuration allows for more efficient airflow towards the display room 30 side of the door section 13, further reducing fogging of the flip-up door 12.

[0054] Since the embodiments described above are for illustrative purposes of the technology described herein, various modifications, substitutions, additions, omissions, etc., can be made within the claims or their equivalents.

[0055] (Note) Based on the above description of embodiments, the following technologies are disclosed.

[0056] (Technical 1) A cooling storage facility comprising a cooling storage facility body, a display room provided inside the cooling storage facility body and opening upward, and a hinged door having a heater that opens and closes the opening of the display room, wherein a machine room containing a compressor and a condenser is provided outside the display room wall surrounding the display room, the hinged door is arranged to open and close vertically starting from the rear of the cooling storage facility body, and is provided with an exhaust duct located adjacent to the front wall of the display room wall for carrying exhaust from the machine room, and when the hinged door is opened, the exhaust duct and the display room side of the hinged door are in communication. According to this, when the hinged door is opened, the exhaust from the exhaust duct can be directed towards the display room side of the hinged door, thereby reducing fogging of the hinged door.

[0057] (Technology 2) The cooling storage facility according to Technology 1, further comprising a guide section that guides the exhaust from the exhaust duct to the display room side of the lift-up door when the lift-up door is opened. According to this, when the hinged door is opened, it becomes easier to direct the exhaust from the exhaust duct towards the display room side of the hinged door.

[0058] (Technology 3) The cooling storage unit according to Technology 1 or 2, further comprising a packing that adheres tightly to the upper part of the cooling storage unit body when the hinged door is closed. According to this design, when the hinged door is opened, the exhaust from the exhaust duct can be directed towards the display room side of the hinged door, while when the hinged door is closed, the exhaust from the exhaust duct can be prevented from entering the display room side of the hinged door.

[0059] (Technical 4) The cooling storage according to any one of Technical 1 to 3, wherein the guide portion is positioned to form a wall surface from the front to the upper side of the cooling storage body together with the front of the exhaust duct and the upper surface of the lift-up door when the lift-up door is closed, and also forms the front of the cooling storage body together with the front of the exhaust duct and the upper surface of the lift-up door when the lift-up door is opened. According to this design, when the hinged door is opened, the exhaust from the exhaust duct can be directed towards the display room side of the hinged door, and when the hinged door is closed, the guide section can be effectively utilized as part of the main body of the cooling storage unit.

[0060] (Technical 5) A cooling storage facility according to any one of Technical 1 to 4, wherein a gap is provided between the tip of the exhaust duct and the guide portion, such that the flip-up door can be opened and closed vertically when the flip-up door is closed. According to this, since only a gap large enough for the hinged door to be opened and closed vertically is provided, the hinged door can be easily opened and closed without the need for additional components.

[0061] (Technical 6) A cooling storage facility according to any one of Technical 1 to 5, wherein a gap is provided between the tip of the exhaust duct and the guide portion, such that the flip-up door can be opened and closed vertically when the flip-up door is opened. According to this, when the hinged door is opened, only a gap is provided that allows the hinged door to be opened and closed vertically. Therefore, when the hinged door is opened, exhaust from the exhaust duct is prevented from being discharged between the tip of the exhaust duct and the guide section, and the exhaust from the exhaust duct can be efficiently directed towards the display room side of the hinged door.

[0062] (Technical 7) The machine room is located below the wall of the display room surrounding the display room and comprises an intake port that is open in a front view and an exhaust duct that is closed in a front view, the intake port and the exhaust duct are separated by a partition plate that extends vertically, and the exhaust duct communicates from the machine room to the display room side of the flip-up door along the vertical direction of the front of the wall of the display room when the flip-up door is opened, the cool storage facility according to any one of Technical 1 to Technical 6. According to this, by efficiently managing intake and exhaust, when the hinged door is opened, the exhaust from the exhaust duct can be directed towards the display room side of the hinged door.

[0063] (Technical 8) The cooling storage facility according to any one of Technical 1 to 7, wherein the machine room is provided with an exhaust port on the rear side of the cooling storage facility body. According to this, even when the hinged door is closed, exhaust is carried out through the exhaust vent, thus preventing exhaust from accumulating inside the cooling storage unit when the hinged door is closed. [Industrial applicability]

[0064] As described above, the cooling storage unit according to the present invention can be used for preventing fogging of doors. [Explanation of Symbols]

[0065] 1 Cooling storage 5. Cooling storage unit 10 cabinets 10a front 10b Rear 11 Aperture 12. Folding door 12a base 13 Door section 13a side 18 Wiring 19. Insulated wall (showroom wall) 19a Front wall (front) 20 Insulated Room 30 Exhibition room 35 Packing 40 Machine room 41 Compressor 42 Condenser 43. Blower fan 44 Inlet 45 Exhaust vent 46 Partition Plates 47 Exhaust duct 47a aperture 47b Slope 47c Exhaust duct rear wall 49 Exhaust side airflow duct L1 Left Space R1 Right Space S3 Door closing gap (gap) S4 Door opening gap (gap) S5 Air intake

Claims

1. A cooling storage unit comprising a main body of the cooling storage unit, a display room located inside the main body of the cooling storage unit and opening upwards, and a hinged door having a heater that opens and closes the opening of the display room, Outside the wall surrounding the aforementioned display room, there is a machine room where a compressor and a condenser are located. The aforementioned hinged door is positioned to open and close vertically, starting from the rear of the cooling storage unit body. The exhibition room wall is provided with an exhaust duct located adjacent to the front wall for carrying exhaust from the machine room, A cooling storage facility in which, when the aforementioned hinged door is opened, the exhaust duct and the display room side of the hinged door are in communication.

2. The cooling storage unit according to claim 1, further comprising a guide section for guiding exhaust from the exhaust duct towards the display room side of the lift-up door when the lift-up door is opened.

3. The cooling storage cabinet according to claim 2, further comprising a packing that adheres tightly to the upper part of the cooling storage cabinet body when the flip-up door is closed.

4. The aforementioned guide portion is When the aforementioned hinged door is closed, the front surface of the exhaust duct and the top surface of the hinged door together form a wall surface extending from the front to the top of the cooling storage unit body. The cooling storage unit according to claim 3, wherein when the lift-up door is opened, it is positioned to form the front of the cooling storage unit body together with the front of the exhaust duct and the top of the lift-up door.

5. A gap is provided between the tip of the exhaust duct and the guide portion, such that the flip-up door can be opened and closed vertically when the flip-up door is closed, as described in claim 4.

6. The cooling storage cabinet according to claim 5, wherein a gap is provided between the tip of the exhaust duct and the guide portion, such that the flip-up door can be opened and closed vertically when the flip-up door is opened.

7. The machine room is located below the wall surrounding the display room and includes an intake port that is open when viewed from the front and an exhaust duct that is closed when viewed from the front. The intake port and the exhaust duct are separated by a partition plate that extends vertically. The cooling storage facility according to any one of claims 1 to 6, wherein the exhaust duct communicates from the machine room to the display room side of the flip-up door, along the vertical direction of the front of the display room wall when the flip-up door is opened.

8. The cooling storage unit according to claim 7, wherein the machine room is provided with an exhaust port on the rear side of the cooling storage unit body.

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