JPH0367982A - Low temperature container with illumination device - Google Patents

Abstract

PURPOSE:To prolong the life of an illumination device and uniformly cool the interior of a container by cooling the surroundings of the illumination device by cold air. CONSTITUTION:Illumination devices 61 are formed at right and left two positions of an upper fan duct 41 formed spreading at the center before and after a ceiling wall of the same located in the course to the same. The illumination device 61 comprises a bottomed cylindrical frame 62 opened at it lower surface, an outlet 63 mounted on the inside wall of the cylindrical frame 62, and a lamp 64 joined with and supported on the outlet 63. Cold air flowing out in the upper fan duct 41 is blown out from a blow-off outlet 43 into the upper container box 2 and blown from a vent hole 65 in the cylindrical frame 62 of the illumination device 61 into the cylindrical frame 62, and further blown out from the lower surface opening in the cylindrical frame 62 into the upper container box 2. The illumination device 61 is cooled by the cold air flowing around the cylindrical frame 62 and flowing through the cylindrical frame 62, to prolong the life of the lamp 64. Further, the inside of the upper container box 2 can be prevented from rising in temperature owing to heat produced by the lamp 64.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a low-temperature storage cabinet that cools the interior of the cabinet by blowing cold air into it and is equipped with a lighting device.

(B) Prior Art The present invention has a problem in that when a lighting device is disposed in a low-temperature storage, heat dissipation from the lighting device itself is not sufficiently performed, resulting in a shortened lifespan of the lighting device.

As a structure to improve this point, there is a structure in which a push-through hole is formed in one side wall of the low-temperature storage chamber, a transparent plate is attached to the inside of the insertion hole, and a lighting device is attached to the push-through hole from outside the chamber. Although this structure is acceptable for commercial equipment, it is not an appropriate structure for household appliances because it requires that the lamp body of the lighting device can be attached and detached without using a jig.

(c) Problems to be Solved by the Invention The present invention aims to provide a low-temperature storage with a lighting device that suppresses the reduction in the lifespan of the lighting device and allows easy replacement of replacement parts (lamp body). This is a major issue.

(d) Means for Solving the Problems The present invention includes a storage box body formed of a heat-insulating box body, a ventilation duct formed in the storage box body that sends cold air into the storage box body, and a refrigeration device that generates cold air. The problem is solved by a first means in which a lighting device is formed on the inner surface of a storage box body, and cool air from a ventilation duct is caused to flow through the lighting device.

The present invention includes a storage box formed of a heat insulating box, a lighting device attached to the inner surface of the storage box, a refrigeration device and a blower device that generate cold air, and a lighting device that sends cold air to the storage box. The problem is solved by the second means of forming a low-temperature storage with a ventilation duct that sends cold air to the surrounding area.

The present invention includes a storage box formed of a heat insulating box, a lighting device attached to the inner surface of the storage box, a refrigeration device and a blower device that generate cold air, and a lighting device that sends cold air to the storage box. The ++tq light device includes a cylindrical frame that opens inside the storage box body and a lamp body that is disposed inside the frame, and the ++tq lighting device is equipped with a cylindrical frame that opens inside the storage box body and a lamp body that is disposed inside the frame. The problem is solved by a third means of attaching the container to the storage box body so as to be positioned in the same position.

The present invention includes a storage box formed of a heat insulating box, a lighting device attached to the inner surface of the storage box, a refrigeration device and a blower device that generate cold air, and a lighting device that sends cold air to the storage box. The lighting device is equipped with a ventilation duct that sends cool air to the surrounding area, and the lighting device is formed of a cylindrical frame that opens inside the storage box body and has a ventilation hole formed therein, and a lamp body disposed inside the frame. The problem is solved by the fourth means of installing the shaped frame inside the air duct.

The present invention provides a storage box formed of a heat-insulating box, a lighting device attached to the inner surface of the storage box, a refrigeration device and a blower device that generate cold air, and a lighting device that sends the cold air to the storage box. The lighting system is equipped with a ventilation duct that sends cool air around the
The problem is solved by the fifth means, which is formed by a cylindrical frame having a ventilation hole formed therein and a lamp body disposed within the frame, and the cylindrical frame is mounted in a ventilation duct.

Each means has the first means as a basic structure, and embodies the structure of the lighting device and the structure of supplying cold air from the ventilation duct to the lighting device.

The lamp body of the lighting device may be an incandescent light bulb, a ball light bulb, a ball-shaped fluorescent light, etc. if it is installed in a cylindrical frame. If the lamp body is a straight tube fluorescent lamp, the frame body will be an elongated groove-shaped frame body.

(E) Function According to the present invention, the lighting device is cooled by the cold air by flowing cold air through the lighting device from the ventilation duct. The flow of cold air is slightly different depending on the method; in the second and third methods, it flows around the lighting device, and in the fourth and fifth methods,
Cold air flows into the lighting device through the vents. Depending on the structure of the fourth and fifth means, cold air flows around the lighting device and also flows into the interior.

(f) Embodiment The structure of the present invention will be explained based on the illustrated embodiment structure embodying the structure.

The figures illustrate the present invention, and FIG. 2 is a front view of the storage 1.

The storage 1 is formed by an upper storage box body 2 and a lower storage box body 3. A pair of door bodies 4 and 5 which rotate to open and close in opposite directions are attached to the front opening of the upper and lower storage box bodies 2.3.

FIG. 3 is a front view of the storage 1 with the door body 4 open and the right door body 5 open. In FIG. 3, the internal structure is schematically indicated by broken lines. The upper and lower storage box bodies 2.3 include a front-opening upper and lower insulating box body 6.7 made of an outer box, an inner box, and an insulating material filled with foam between the inner and outer boxes, and upper, lower, left and right walls of the upper and lower insulating box bodies 6.7. and upper and lower decorative frames 8.9 that cover the front edge.

The outer box and inner box of the upper and lower insulation boxes 6.7 are formed of synthetic resin plates, metal plates, or the like. The upper and lower decorative frames 8.9 are made of wooden veneer or plywood. Insert the upper insulating box 6 through the rear opening of the upper decorative frame board 8, and fit the front edge of the upper insulating box 6 to the front flange 10 of the decorative frame board 8 in a sealed state to prevent it from being pulled out to the rear. This is done using an L-shaped fitting 11 as shown in FIGS. 11 and 12. The lower insulation box 7 is pushed in through the rear opening of the lower decorative frame board 9, and the front edge is sealed and fixed at a predetermined position. The fixing structure is a well-known structure.

As shown in the exploded sectional view of FIG. 6, the storage 1 can be separated into an upper storage box 2 and a lower storage box 3, which are stacked together using a connecting body (not shown) and then joined and integrated. - After cyclization, do not separate it carelessly unless you use a jig to remove the connected body. By forming the upper and lower storage boxes 2.3 separately, the volume during transportation can be reduced, and the weight of each unit during installation can be reduced, so that installation work can be carried out smoothly.

A cooler 21 is disposed on the back surface of the lower insulation box 7 of the lower storage box 3, and a suction space 22 serving as a suction port is provided below the cooler 21.
is formed. A blower device 23 is disposed above the cooler 21. The blower device 23 includes an air outlet 24 that blows out cold air into the lower insulation box body 7, and an air outlet 24 that blows out cold air into the lower insulation box body 7, and -1- an air outlet 2 that blows out cold air into the storage box body 2.
5 is formed. A dew tray 111126 is disposed below the cooler 21 and below the suction space 22. Lower insulation box 7
A lower air duct 27 that connects to the air outlet 25 and a lower return duct 28 that communicates with the suction space 22 are formed.
The lower air duct 27 is formed behind the air blower ``If, 23.The cooler 21 is arranged on the right side of the lower insulation box 7, and the return duct 28 is formed on the back surface of the lower insulation box 7. It is formed in the center.

A refrigerant compressor 29, a condenser 30, and a cooling blower 31 are installed in the space below the lower insulation box 7 of the lower storage box 3 and the lower decorative frame 9.
and an evaporating dish 32.

The dew pan 26 and the evaporation pan 32 are communicated through a drain pipe 33. A condenser 30 is arranged in the front lower part of the lower storage box body 3,
A ventilation hole 34 is formed.

Two ventilation ducts 41 are formed on the back surface of the insulation box body 6 of the storage box body 2. An upper return duct 42 is formed on the inner surface of the upper insulation box 6 of the second storage box 2. The upper air duct 41 and the upper return duct 42 are connected to the lower air duct 27 and the lower return duct 28 of the lower storage box body 3 to form an air duct and a cold air return duct. The upper air duct 41 is bent in the middle as shown by the broken line in FIG. By forming the upper air duct 41 in a bent manner,
2) The blower duct 41 is located at the center of the upper insulating box 6.

FIG. 1 is a right side view of the storage 1 taken longitudinally at the center, and the position of the cooler 21 is indicated by a broken line. Figure 4 shows the cooler 2 and the air outlet 24 on the right side of the storage compartment l.
Right side view taken vertically in part, Figure 5 shows the upper ventilation duct 41
FIG. 6 is an exploded right side view of the upper storage box body 2 and the lower storage box body 3 separated from each other in the cross-sectional state of FIG. 5. FIG. 7 is a plan view of the lower part of the upper storage box 2 of the storage 1, and FIG. 8 is a plan view of the upper storage box 2 of the storage 1.
FIG. 9 is a plan view taken across the top wall of the upper insulation box body 6 constituting the second storage box body 2 of the storage shed 1. FIG. Figure 10 is a plan view taken across the center of the upper storage box body 2 with the door body 4 removed from the storage cabinet 1.A virtual person M and line of sight I (-dotted chain line) are shown in the drawing to explain the display state. It shows. FIG. 11 is an enlarged cross-sectional view of the right side of the upper storage box body 2 with the door body 4 closed, and FIG. 12 is an enlarged cross-sectional view of the right side of the upper storage box body 2 with the door body 4 open. be. FIG. 16 is an enlarged right side view taken longitudinally of the rear upper part of the upper storage box body 2. FIG. 17 is an enlarged right side view of the connecting portion of the upper storage box body 2 and the lower storage box body 3 in the storage shed, taken longitudinally at the center.

The upper air duct 41 is shaped so as to extend over the inner surface of the ceiling wall of the upper heat insulating box 6, and the air outlet 43 is disposed at the front of the inner surface of the ceiling wall. A blower device 44 is formed at a corner between the inner surface of the ceiling wall and the inner surface of the back of the upper blower duct 41. ”2 storage box body 2
The cold air from the cooler 21 is blown inward by pushing (blowing) the cold air into the lower air duct 27 and the upper air duct 41 by the air blower 23, and by sucking up the cold air from the back side of the second air duct 41 by the air blower 44. It will be held at When the distance between the lower ventilation duct 27 and the upper ventilation duct 41 is long and the ventilation resistance is large, a small ventilation device 23.4
4, it is possible to efficiently blow cold air to high places. Since the upper air duct 41 is bent in the middle, the air blowing resistance increases, but the air blowing resistance due to the gravity of the cold air with increased specific gravity can be reduced, and when the air blowing devices 23 and 44 are stopped, the backflow of cold air can be prevented. can be prevented. Air blower 2
3.44 is stopped when the temperature sensor detects that the temperature inside the upper storage box body 2 and the lower storage box body 3 has reached a predetermined value, and when frost has formed on the cooler 21. This is when the defrosting operation starts.

The main return duct 42 opens at the lower central corner of the upper insulating box 6 on the rear surface. At the rear of the inner bottom of the upper insulation box 6,
A cold air guide passage 45 is formed which communicates with the second return duct)/+2. The cold air guide passage 45 extends to both sides of the rear part of the inner bottom surface, and also extends to the front of the center part.

In this embodiment, the cold air guide passage 45 is formed by a recess. The air is blown out from the air outlet 43 and flows down into the storage box body 2.
The cold air collected at the bottom of the duct is efficiently guided to the second return duct 42.

Dew that condenses on the inner surface of the upper storage box body 2 and flows down, or water liquid spilled from the items stored in the upper storage box body 2, accumulates on the bottom of the storage box body 2 and flows through the cold air guide passage 45 into the second return duct. 4
2, and flows down from the lower return duct 28 to the dew receiving book 2G. The water accumulated in the dew catcher 26 is drained to the evaporation dish 32 through a drain pipe 33. The cold air flowing through the second return duct 42 and the lower return duct 28 is the cold air that has flowed through the second storage box body 2 and has a relatively high temperature, so the water does not freeze and the water is the same as cold air. Because it flows in the same direction, it flows smoothly and drains. '1 lower return duct 42.2
8 as a drainage passage, no special structure for drainage is required.

A plurality of shelves 51 and 52 are arranged in the upper storage box body 2. In this embodiment, the shelves 51 and 52 are arranged in four stages. The lowermost shelf 52 is formed of a metal plate and is disposed to form a corner between the bottom surfaces of the two-insulating box 6 for cold air to flow therethrough. The shelf 52 corresponds to the inner lower plate of the storage box body 2, and if the mounting structure is designed to be removable, inspection, repair, and cleaning can be easily performed. The attachment/detachment structure may be a locking structure that does not use a jig, or may be a structure in which attachment/detachment is performed using a jig such as a simple screwdriver.

The other three shelves 51 are made of impact-resistant glass and are arranged so as to divide the space above the shelf 52 into four. 1g1
The mounting position of the wI 51 is such that the interval between the wIs 51 can be changed depending on the usability of the user. 2. Supports 53 are formed on both sides of the dorsal inner surface of the upper insulation box body 6 of the storage box body 2. The support column 53 is formed of a hollow body made of metal. The shape of the hollow body may be a cylinder, a frame with a U-shaped cross section, or the like, as long as the inside thereof forms a cold air circulation duct. The pillar 53 has a locking hole 54 that also serves as a ventilation hole.
Multiple pieces are formed in 1. The locking hole 54 is formed, for example, in a vertically elongated rectangular shape, and is formed in the front wall of the support column 53. Although an engaging body that is directly engaged with the locking hole 54 of the support column 53 may be formed at the rear end of the shelf 51, in the present structure, the separate shelf support allows the body 55 to be directly engaged with the locking hole of the support column 53. 54 and indirectly 1
llII 51 is supported by a support 53. Both side portions of the shelf 51 are mounted and supported by shelf supports 55, and both side edges of the shelf 51 are opposed to positioning pieces 56 to prevent sideways rubbing of the shelf 51. The positional relationship between the shelf 51, the shelf support body 55, and the positioning piece 56 is clearly shown in FIGS. 11 and 12.

The lower end of the support column 53 is open and communicates with the cold air guide passage 45 with which the main return duct 42 communicates. By communicating the pillar 53 with the cold air guide passage, the cold air flows through the pillar 53.
The cold air is sucked in through the locking hole 54 and flows downward inside the support column 53 and into the cold air guide passage 45. Since the cold air is sucked in through the locking hole 54 of the support column 53, the pressure in the space between the shelves 51, 52 is reduced, and the cold air blown out from the outlet 43 is sucked into the space between the shelves 51, 52. Therefore, shelf 51.
52 has no ventilation, the cold air blown out from the air outlet 43 flows down along the door body 4 and exits the cold air guide passage 45 directly through the return duct 4.
The cold air can be efficiently circulated within the upper storage box body 2 by preventing it from flowing into the upper storage box body 2. By using the support column 53 as a cold air suction duct, there is no need to form a separate duct, and the structure is simplified.

An upper ventilation duct 41 is formed on the inner surface of the ceiling wall of the upper insulation box 6 of the upper storage box 2 so as to expand from the back toward the front air outlet 43. Expanded upper air duct 4
In the middle of 1, there are 2 places on the left and right in the center of the front and back of the ceiling wall.
A brightness device 61 is formed. The lighting device 61 includes a bottomed cylindrical frame 62 with an opening at the bottom, a socket body 63 attached to the back wall of the cylindrical frame 62, and a lamp body 6 supported by the socket body 63.
4 and more. As shown in FIG. 16, the cylindrical frame 62 penetrates through the inside of the two ventilation ducts 4 and is attached to a recess formed in the ceiling wall of the upper insulation box 6. The lamp body 64 can be easily replaced since the lower surface of the cylindrical frame body 62 is open. A ventilation hole 65 is formed in a portion of the cylindrical frame body 62 on the side of the blower 44 located inside the upper blower duct 41.

A changing plate 66 is formed in the ventilation hole 65 to guide cold air blown into the cylindrical frame 62 to the back wall of the cylindrical frame 62.

- The cold air flowing through the ventilation duct 41 is blown out from the outlet 43 into the storage box body 2, and is also blown into the cylindrical frame 62 through the ventilation hole 65 of the cylindrical frame 62 of the lighting device 6. , from the bottom opening of the cylindrical frame 62 into the dish storage box 2. The lighting device 61 is cooled by cold air flowing around the cylindrical frame 62 and flowing inside the cylindrical frame 62 .

In particular, when an incandescent light bulb is used for the lamp body 64, the life of the lamp body 64 can be extended by cooling it, and at the same time, it is possible to suppress the increase in temperature inside the pan storage box body 2 caused by the heat of the lamp body 64. I can do it.

Reflective plates 71 and 72 are disposed on both side walls and the inner surface of the back wall of the upper insulation box 6 of the upper storage box 2. The reflecting plate 71 is arranged between the columns 53 on the inner surface of the back wall. The reflecting plates 72 disposed on the inner surfaces of both side walls are formed so that the angle can be changed by moving the rear side.

By surrounding the shelves 51.52 with reflective plates 7] and 72, articles placed on the shelves 51.52 are reflected on the reflective plates 71.72,
It can improve the exhibition effect. The appearance is due to the effect that multiple items appear, and the reflection plate 71 as the person M moves.
．． The state reflected in 72 changes. When viewed from the direction shown in FIG. 10, the article B appears to be countless because it is repeatedly reflected by the reflecting plate 72. Also, J!
Since the light beams r (interval device 6) are also reflected on the reflectors 7] and 72, the number of lighting devices becomes plural, and the decorative lighting effect is improved.

The door body 5 of the lower storage box body 3 is formed of a heat insulating board. The front surface of the door body 5 is made of a material, shape and color that match the decorative frame body 9.

The door body 4 of the upper storage box body 2 has two transparent glass plates 8 on a door frame 81.
2 are fitted to form a heat insulating space to form a translucent door body. An electric heater 83 for preventing dew condensation is disposed within the door frame 81 of the door body 4. The door frame 81 and the transparent glass plate 82 are hermetically connected. In this embodiment structure, in order to improve the heat insulation effect of the door body 4, a translucent heat ray reflective film 84 is stretched between the transparent glass plates 82.

Both lower end portions of the pivot side 1 of the door body 4 are held and rotatably supported at two locations, a first guide portion 85 and a second guide portion 86.

At the first guide portion 85, the pivot side 5 end of the door body 4 is guided and slidably supported in the front-rear direction along the side inner surface of the second storage box body 2. In the second guide portion 86, a portion slightly inside the pivot side end of the door body 4 is guided and slidably supported in the left-right direction along the opening of the second storage box body 2. First and second guide portion 85.8 of door body 4
Support shafts 87 and 88 are provided protruding from the portion supported at 6. A reinforcing member 89 is attached to the door frame 81 at the protruding portion of the support shafts 87 and 88. The support shafts 87, 88 are rotatably attached to the reinforcing member 89. The support shafts 87 and 88 are made of a conductive member and are connected to one end of the electric heater 83 with a screw. The reinforcing member 89 is made of an insulator. The connection portion structure between the electric heater 83 and the support shaft 88 is the thirteenth one.
This is shown in the cross-sectional view of FIG.

In this structure, the first and second guide portions 85 and 86 are formed by grooves formed in the upper heat insulating box 6. First and second guide section 85.
86 are formed in a substantially orthogonal positional relationship as shown in FIG. The inside of the first and second guide parts 85 and 86 is formed of an insulating plate, and a support collar part 90 is formed in the opening. The first and second guide portions 85 and 86 accommodate sliding bodies 92 and 93 having a pair of front and rear rolling bodies 9 that roll and move on the collar portion 90 . A support shaft 87 for the door body 4 is attached to the front part of the sliding body 92 of the first guide part 85. A support shaft 88 is attached to the pivot side of the sliding body 93 of the second guide portion 86 .

When the door body 4 is in the closed state, its pivot side portion is in the position shown in FIG. 11. In this state, when the movable side of the door body 4 is pulled forward to open, a force that tries to rotate around the support shaft 88 is first applied, and the support shaft 87 is moved along the first guide portion 85. This results in a force acting to move it inward. When a force trying to move the support shaft 87 along the first guide section 85 acts, a force that tries to move the support shaft 88 along the second guide section 86 acts in turn. , the force acting on the support shafts 87 and 88 to cause the door body 4 to open is
7 inward along the first guide part 85, and the support shaft 8
8 to the outside along the second guide portion 86, and guides the door body 4 to open it. By this operation, the pivot side of the door body 4 is pushed into position along the side inner surface of the upper storage box body 2 in the open state as shown in FIG. Since the pivot side of the door body 4 is pushed into the storage box body 2, the amount of protrusion of the door body 4 in the open state is reduced. Since the door body 4 is opened while being pushed into the dish storage box body 2 even during opening, the space of the door body 4 for opening can be reduced. Door body 4
The opening/closing operation can be performed in the same way as the opening/closing operation of a door body pivoted at one point, and the pivot side portion can be pushed in without requiring a pushing operation of the door body 4.

In this embodiment structure, since the electric heater 83 is attached to the door body 4, it is necessary to supply power. A sliding contact 94.95 connected to the support shaft 87.88 is formed at a portion of the sliding body 92.93 to which the support shaft 8788 is attached. Sliding contact 94.95
is biased by a spring body and protrudes from the two sides of the sliding bodies 92 and 93. A sliding contact 94 is located on the back surface of the first and second guide parts.
．． It has fixed contacts 96 and 97 that contact 95.

A power supply circuit to the electric heater is formed by the sliding contacts 94.95 coming into contact with the fixed contacts 96.97. The fixed contacts 96 and 97 are connected to the sliding contacts 94 and 9 when the door body 4 is closed.
5 is formed only at the position where it contacts. Followed, door body 4
When is open, power is not supplied to the electric heater 83,
Power is supplied only when the door body 4 is closed. Since the sliding contact 94.95 and the fixed contact 96.97 serve as the switch for power supply/non-supply, the number of parts is reduced and the structure is simplified.

When the door body 4 is closed, the sealing structure in the upper storage box body 2 is performed by the seal bodies 98 and 99. The pivot side of the door body 4 is sealed by attaching the seal body 98 to the front flange 10 of the second decorative frame body 8 and bringing the pivot side iij surface of the door body 4 into contact with the seal body 98. A seal body 99 is attached to the lower end and the open end of the body 4, and the open ends of the door bodies 4 are brought into contact with each other and are brought into contact with the inner surface of the upper storage box body 2.

The present invention is not limited to the above-described implementation structure, but can be implemented with modifications within the scope of well-known techniques.

For example, although the lighting device is one in which light from a lamp body is directly irradiated into the storage, an easily attachable and detachable light-transmitting plate may be attached to the lower opening of the cylindrical frame.

In addition, the wall on the inside side of the ceiling wall in the binary air duct is made of an easily removable light-transmitting plate, and -1- a lamp body is installed inside the air duct to form a lighting device. good. In this case, the illumination effect is improved by lighting the ceiling of the storage 747.

(g) Effect of the invention The present invention cools the surroundings of the lighting device with cold air.
In addition to suppressing the temperature rise of the lighting device to extend the life of the lighting device, it also suppresses uneven temperature rise inside the refrigerator to achieve uniform cooling.

[Brief explanation of drawings]

The figures show one implementation structure of the present invention, in which Fig. 1 is a right side view of the center vertical section, Fig. 2 is a front view of the storage, Fig. 3 is a front view of the storage with the door open, and Fig. 4. Figure 5 is a right side view taken longitudinally of the different parts from Figure 1, Figure 6 is an exploded sectional view of Figure 5, Figure 7 is a cross-sectional plan view, Figure 8 is a cross-sectional bottom view, and Figure 9 is a cross-sectional view.
The figure is a cross-sectional plan view of the ceiling wall of the double-insulated box, Fig. 10 is a cross-sectional plan view with the door removed, Fig. 11 is an enlarged cross-sectional plan view of the main part with the door closed, and Fig. 12 is the door open. 13 and 14 are longitudinal sectional views taken in different directions of the door body support part; FIG. 15 is a cross sectional plane view of the pivot side part in the door body closed state; The figure is a vertical right side view of the rear upper portion of the upper storage box body, and FIG. 17 is a vertical right side view of the connecting portion of the upper storage box body and the lower storage box body. 1... Storage cabinet, 2... Upper storage box body, 3 Lower storage box body, 4... Door body, 2] Cooler, 22
... Suction space, 23... Air blower, 24... Outlet, 26... Dew pan, 27... Lower air duct, 28... Lower return duct, 41... Main headwind. Duct, 42...Upper return duct, 43...Blower outlet, 44...Blower device, 45...Cold air guide passage, 51.52...Shelf, 53・Strut, 54・
... Locking hole, 55 ... Shelf support is body, 61.
Lighting device, 62... Tubular frame, 64... Lamp body, 65... Ventilation hole, 71.72... Reflector, 81... Door frame , 82...Transparent glass plate, 83...Electric heater, 85...First guide part, 86...Second guide part, 87.88...Support shaft , 92.93...Sliding body, 94.95...Sliding contact, 96.97...Fixed contact

Claims (1)

[Scope of Claims] 1. A storage box body formed of a heat-insulating box body, a ventilation duct formed in the storage box body that sends cold air into the storage box body, and a refrigeration device and a blower device that generate the cold air, A low-temperature storage cabinet with a lighting device in which a lighting device is formed on the inner surface of a storage box body, and cold air from a ventilation duct is passed through the lighting device. 2. A storage box formed of a heat-insulating box, a lighting device attached to the inner surface of the storage box, a refrigeration device and a blower device that generate cold air, and a cooling device that sends the cold air to the storage box and around the lighting device. A low-temperature storage cabinet equipped with a ventilation duct that sends cold air. 3. A storage box formed of an insulating box, a lighting device attached to the inner surface of the storage box, a refrigeration device and a blower device that generate cold air, and a cooling device that sends the cold air to the storage box and around the lighting device. The lighting device includes a cylindrical frame opening into the storage box body and a lamp body disposed within the frame, and the cylindrical frame is positioned within the ventilation duct. A low-temperature storage cabinet that is attached to the storage box body. 4. A storage box formed of an insulating box, a lighting device attached to the inner surface of the storage box, a refrigeration device and a blower device that generate cold air, and a cooling device that sends the cold air to the storage box and around the lighting device. The lighting device is equipped with a ventilation duct that sends cold air, and the lighting device is formed of a cylindrical frame that opens inside the storage box and has a ventilation hole formed therein, and a lamp body that is disposed inside the frame. A low-temperature storage cabinet installed inside the ventilation duct. 5. A storage box formed of a heat-insulating box, a lighting device attached to the inner surface of the storage box, a refrigeration device and a blower device that generate cold air, and a system that sends cold air to the storage box and around the lighting device. The lighting device includes a cylindrical frame with a ventilation hole formed therein, a lamp body disposed within the frame, and the cylindrical frame is mounted within the duct. Cold storage.