JPH0367981A - Low temperature container - Google Patents

Abstract

PURPOSE:To improve cooling efficiency by making uniform the flow of cold air by sucking in the cold air through a stopper hole or a vent hole and utilizing the pillar as a vent duct. CONSTITUTION:A pillar 53 is opened at its lower end and it communicated with a cold air guide passage 45 communicated with an upper feedback duct 42. With the pillar 53 so communicated with the cold air guide passage, the cold air is sucked in through a stopper hole 54 in the pillar 53, and allowed to flow downward in the pillar 53 into the cold air guide passage 45. Since the cold air is sucked in through the stopper hole 54 in the pillar 53 as such, pressure in a space among the shelves 51, 52 is lowered, and the cold air blown out from a blow-off outlet 43 is sucked into air among the shelves 51, 52. Accordingly, there can be prevented cold air blown out from the flow-off outlet 43 from flowing downalong the door 4 in a non-ventilation structure in the shelves and flowing the upper feedback duct 42 from the cold air guide passage 45 as it is, and hence the cold air can effectively circulated in the upper container box 2.

Description

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

t) Prior art Prior to the present invention! ? Utility Model Publication No. 57-48151 as a technology to
The oven showcase described in the publication (there is a low-temperature storage compartment) has an opening in the front for taking out products, and multiple through holes in the front on both sides of the back wall facing the refrigerator compartment and for shelf support. Hollow columns with rack holes are erected to connect the cooling chamber in the refrigerator compartment and the cold air flow passageway in the upper part.
The cold air flow passing through the cooling room, left and right ducts, hollow struts and cold air flow passages closes both iJ side openings, and a portion of the cold air flow passing through both ducts and hollow struts is passed through holes and racked to the front opening. This means that the air is diverted into the cold R room.

Because the oven showcase closes opening 1-1 with an air curtain, when the internal pressure of the cold I & room is low, the air curtain curves into the cold R room and comes into contact with the tip of the shelf, causing turbulent flow. This causes the high temperature outside air to flow into the refrigerator compartment, increasing the internal pressure of the storage compartment.

However, if a structure that blows cold air into the storage room from the hollow support is implemented in a storage warehouse that has a door body that is the object of the present invention, the cold air that blows out from the cold air outlet will blow down along the door body. When the product is placed on the shelf, cold air is not sufficiently distributed, and the temperature distribution within the storage box is not uniform, resulting in poor cooling efficiency.

C) Problem 4 to be solved by the invention Invention (Well, it is a technical problem to provide a low temperature storage RL that allows uniform cooling inside the storage box in a low temperature storage cabinet having a door body. It is something to do.

2) Means for solving the problem 4:5 is to provide a storage box body with an opening formed on the front surface, a door body for opening and closing the front opening of the storage box body, and a storage box body,
A cold air outlet is formed on the upper surface of the storage box body, +111
The support column 1 is made of a hollow body with a plurality of locking holes and ventilation holes formed in the front wall, and the support column is arranged at the rear of the inner surface of the storage box body, and the locking holes in the support tube are used to draw out the cold air inside the storage box body. This problem is solved by making the inside rear part of the storage box body.

In addition, the present invention provides a storage box having an opening formed on the 011 side, a door body for opening and closing the front opening of the storage box, and a cold air outlet in the upper surface of the storage box in the storage. The pillars supporting the shelves are made of a hollow body with a plurality of locking holes formed in the cut wall, and the pillars are placed at the rear of the inner surface of the storage box body, and the locking holes of the pillars are inserted into the inside of the storage box body. This problem is solved by means of distributing the cold 1 ton at the inner rear part of the storage box body.

Furthermore, the present invention provides a storage box body having an opening formed on the front surface;
A door body for opening and closing the front opening of the storage box body, a shelf supported by the pillars inside the storage box body, and a storage box opening],
A cold air inlet is formed on the downward surface of the storage box, the shelf is made of a non-ventilated plate, and the pillars supporting the shelf are made of a hollow body with a plurality of locking holes formed in the front wall. This problem is solved by arranging the support at the rear of the inner surface of the storage box body and lowering the supporting hole of the branch to the rear of the inner surface of the storage box.

□) The locking hole and the ventilation hole formed in l may be individually formed into optimal shapes, or the locking hole may also be used as the ventilation hole. The shelves may be air-permeable mesh shelves, or may be non-air-permeable plates such as resin plates, metal plates, glass plates, etc.

Alternatively, the shelf may be directly imaged into the locking hole of the support.
The shelf support supported in the locking hole of the support post may be placed on the body, and the shelf may be supported by the support support in a casual manner.

(e) Effect 4＼512 Akira draws in cold air from the pillars and directs the cold air blown out from the inside of the storage box to 11 along each column.
Cool air is made to flow to the rear of the storage box in each space partitioned by two shelves to create a uniform flow of cold air within the storage box.

R) Embodiment The structure of the present invention will be explained based on the illustrated implementation structure which embodies the structure.

Figure: Two shows the present invention, and Figure 2 is a front view of the storage 1. The storage 1 is formed by a storage box body 2 and a storage box body 3. ``Near storage box body 2.3 front opening [j has a pair of ``jG H-I'' that rotate to open and close in opposite directions to phase q
I am wearing 5. Figure 3 is a top view of the storage compartment with the door body 4 open and the right door body 5 open. In Figure 3, the internal structure is schematically indicated with broken lines. The box body 2.3 consists of an outer box, a 4-bottom insulating box body 6.7 with 11 openings, and a top and bottom insulating box body 6. 7 Upper F consists of left and right walls and upper and lower decorative frames 8.9 that cover the front edge. Upper 1τ insulation box G
The outer box and inner box 711 of , 7 are formed of a synthetic resin plate, a metal plate, etc. 1. The decorative frame 8.9 is made of wood, board, plywood, or the like. Push in the upper insulation box G between the rear of the upper decorative frame board 8 [1] and insert the front edge of the upper insulation box 6 into the decorative frame board 8.
The Ijii flange 10 is fitted in a sealed state, and the L-shaped fitting 11 is fitted with the rearward opening 11'' as shown in Fig. 11.12.
i2 is done. Is the rear opening of the lower decorative frame board 9 lower 1υ1 ripe? Inflate i'i 1+7 and seal the leading edge in place. The fixing structure is a well-known structure, and the row storage J is as shown in the exploded sectional view in Figure 6 < ,, IZ+11
The 4'+>ili body 2 and the 1·゛ storage box body 3 can be separated into a connecting body (not shown), where they are stacked and then joined and integrated. - After cyclization, do not separate the conjugate carelessly unless you use a jig to tighten the conjugate. Upper and lower storage box body 2
．． By forming the parts 3 separately, the volume during transportation can be reduced, and the weight of each part during installation can be reduced, so that the installation work can be carried out smoothly.

- Cooler 21 in the lower insulating box 7 of the storage box 3 and the inner Koshirae
A suction space 2 serving as a suction port is provided below the cooler 21.
2 is formed. A blower device 23 is disposed above the cooler 21. The blower device 23 has an air outlet 24 that blows out cold air into the lower insulation box 7 and an air outlet 25 that blows out cold air into the upper storage box 2.
is formed. A dew pan 111j 26 is provided below the cooler 21 and the suction space 22. Lower insulation box 7
A lower air duct 27 connected to the air outlet 25 and a lower return duct 28 communicating with the input space 22 are formed in the lower air duct 27 . - The air blower duct 27 is formed behind the air blower 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 1-te inner surface of the lower insulation box 7. It is formed in the center.

1.1 between the lower insulation box body 7 and the lower decorative frame body 9 of the storage box body 3
- A refrigerant compressor 29, a condenser 30, a cooling blower 31, and an evaporation plate 32 are arranged in the part space.

The dew/1 dish 26 and the evaporating dish 32 are communicated through a drain pipe 33. A pseudo-constrictor 30 is disposed in the front lower part of the lower storage box body 3, and a ventilation hole 34 is formed.

"'', a royal style duct 41 is formed on the back surface of the upper insulation box 6 of the storage box 2. The upper insulation box 6 of the upper storage box 2
An upper return duct 42 is formed on the inner surface of the joint. −
The L ventilation duct 41 and the upper return duct 42 are connected to the lower ventilation duct 27 and the return duct 28 of the lower storage box body 3 to form a ventilation duct and a cold air return duct. The third reason is that the royal wind duct 41 is bent in the middle as shown by the broken line. By forming the upper wind stop duct 41 in a bent manner, the royal wind duct 4] is positioned at the center of the upper insulation box 6.

FIG. 1 is a right side view of the storage 1 taken longitudinally through the center, and the position of the cooler 21 is indicated by a broken line. FIG. 24
Right side view taken vertically, Figure 5 shows the upper wind stop duct 41
FIG. 6 is an exploded right side view in which the two storage box bodies 2 and the lower storage box body 3 are separated in the cross-sectional state shown in FIG. 5. Figure 7 is a plan view of the lower part of the upper storage box body 2 of the storage compartment, Figure 8 is a bottom view of the upper storage box body 2 of the storage compartment 1, and Figure 9 is a bottom view of the upper storage box body 2 of the storage compartment. FIG. 3 is a plan view taken across the top wall of the upper heat insulation box 6 that constitutes the L storage box 2. FIG. Figure 1O is a 1TL view of the storage box 1 with the door body and the center of the storage box body 2 with 1 tilted horizontally. (dashed line) is illustrated. 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. It is a diagram. FIG. 16 is a vertical right side view of the rear upper part of the upper storage box body 2. Fig. 17 is a view of D (1) side 1fii, which is a longitudinal section of the continuous feeding portion of the storage box 2 and lower storage box 3 in the storage 1.

1. The air duct 41 is formed to extend on 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 provided in a shape of 1 at the corner between the ceiling wall surface and the dorsal surface of the royal air duct 41. The cold air from the cooler 21 is blown into the upper storage box body 2 by a blower device 23.
This is done by forcing and blowing cold air into the lower air duct 27 and the air duct 41), and by sucking the back part of the royal air duct 11 by the air blower 14. When the distance between the lower ventilation duct 27 and the E ventilation duct 41 is long and the ventilation resistance is large, a small ventilation device 23.
44, it is possible to efficiently blow cold air to high places.

Since the royal air duct 41 is bent in the middle, the air blowing resistance increases, but the cold air with increased specific gravity can reduce the air blowing resistance due to gravity, and the blowers 23 and 44 can be stopped to prevent the cold air from flowing back. can be prevented. The blowers 23 and 44 are stopped when the temperature sensor detects that the internal temperature of the -L storage box body 2 and the lower storage box body 3 has reached a predetermined value, and when the cooling? , ry 21 was frosted, so defrosting operation was required.

1 = The return duct 12 opens at the lower central corner of the rear surface of the upper insulation box 6 (-1). 2. The return duct 12 opens at the rear of the inner bottom surface of the upper insulation box 6 and communicates with the return duct 12. Cold air guide passage 4
5 is formed. The cold air guide passage 15 extends to both sides of the rear part of the inner bottom surface, and also extends to the front of the central part. In this embodiment, the cold air guide passage 15 is formed by a recess. The cold air that is blown out from the air outlet J43, flows down, and accumulates at the bottom of the upper storage box body 2 is efficiently guided to the upper return duct 42. , -] The water spilled from the items stored in the storage box 2 accumulates on the bottom of the -L storage box 2, and flows through the cold air guide passage 45!
It flows into the return duct 42 and flows down from the lower return duct 28 to the dew pan 26. The water collected in the dew pan 26 is drained into the evaporation tray 32 by a drainage vibrator 33. The cold air flowing through the upper return duct 42 and the lower return duct 28 is the cold air flowing inside the upper storage box body 2. Since the temperature is relatively high, the water will not freeze and the water will not freeze. Because the water flows in the same direction as the water, it flows and drains smoothly. By using the upper return duct I2.28 as a drainage passage, no special structure is required for the drainage passage.

A plurality of shelves 51 and 52 are arranged in the storage box body 2. In this embodiment, the shelves 51 and 52 are formed into four stages. The bottom shelf 52 is made of metal plate in the shape 1 & 2. 1- A cold air circulation interval is formed from the bottom surface of the heat insulating box 6. The shelf 52 corresponds to the inner lower plate of the -L storage box body 2, and if the mounting structure is designed to be removable, inspection, repair, and cleaning can be carried out smoothly. 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. Shelf 51
The mounting position is such that the distance between the push buttons 151 can be changed depending on the user's convenience. Two branches 53 are formed on both sides of the dorsal inner surface of the upper insulation box 6 of the upper storage box 2. The support column 53 is formed of a hollow body made of metal. The shape of the hollow body includes a cylinder body, a frame body with a U-shaped cross section, etc., and the shape that the inside becomes a cold air distribution duct is sufficient. The pillar 53 has a locking hole 5.1 that also serves as a ventilation hole. Multiple pieces are formed in the left direction of F. 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. Post 53 at the rear end of 1llll151
Although an engaging body may be formed that is directly locked in the locking hole 54 of
The shelf 51 is indirectly connected to the support post 53 by being locked in the locking hole 51 of the
It is supported by 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 opened and communicated with the cold air guide passage 45 of the upper return duct 12. By communicating the pillar 53 with the cold air guide passage, the cold air flows through the pillar 53.
The air is sucked in through the locking hole 54, flows down inside the support column 53, and flows into the cold air guide passage 45. Since the cold air is sucked in through the locking hole 5 of the support column 53, the pressure in the space between the shelves 31 and 52 is lowered, and the cold air blown out from the air outlet I'43 is sucked into the space between the shelves 51 and 32. . Therefore,
In this implementation structure where the shelves 51 and 52 do not have ventilation,
+141 II i 3) The blown out cold air is prevented from flowing down along the door body 4 and directly into the main return duct 42 through the cold air guide passage 45, and the cold air is kept inside the upper storage box body 2. can be circulated efficiently. Support 1
By using 'lE 53 as a cold air suction duct,
There is no need to form a separate duct, and the structure is simplified.

1 on the inner surface of the ceiling wall of the upper insulation box 6 of the upper storage box 2.
- The blower duct 41 is formed so as to widen aJI from the back to the front air outlet 43. Lighting devices 61 are formed at two locations on the left and right in the central part of the front and back of the ceiling wall, in the middle of the expanded royal road 41. The lighting device 61 consists of a bottomed cylindrical frame 62 with an opening at the bottom, a socket body 6 mounted on the back wall of the cylindrical frame 62, and a lamp body 61 joined and supported by a socket body 63. As shown in FIG. 16, the cylindrical frame 62 penetrates the inside of the royal wind duct 11 and is attached to a recess formed in the ceiling wall of the upper insulation box (i). Since the lower surface of 62 is open, it can be easily replaced.L air duct 4 of cylindrical frame 62
A vent hole 45 is formed in a portion on the side of a transmitter 44 placed inside the transmitter 1 . 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 binary wind duct 41 is blown out from the outlet 13 into the storage box body 2, and is also blown into the cylindrical frame 62 from the ventilation hole 65 of the cylindrical frame 62 of the lighting device 6. , is blown out into the upper storage box body 2 from the lower opening of the cylindrical frame body 62. The illuminating device 6] has cool air flowing around the cylindrical frame 62 and inside the cylindrical frame 62,
cooled down.

In particular, when an incandescent light bulb is used for the lamp body 64, the lamp body G1 can be cooled to extend its life (this is because the heat of the lamp body 64 causes the upper storage box body to rise by 4 degrees).
It is possible to hold down the 1st rise.

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 pivoting the rear side.

Since the shelf 51.52 is surrounded by the reflective plates 7] and 72, the articles placed on the shelf 51.52 are reflected on the reflective plate 71.72,
It can do two things to 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. Furthermore, since the lighting device G is reflected on the reflecting plates 71 and 72, a plurality of lighting devices can be installed, and the decorative lighting effect is improved.

The door body 5 of the storage box body 3 is made of a heat insulating plate. 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 storage box body 2 is formed by fitting two transparent glass plates 82 into a door frame 81 to form a heat insulating space to form a translucent elastic body. An electric heater 83 for preventing zero dew is arranged inside the door frame 81. The door frame 81 and the transparent glass plate 82
It is hermetically connected. In the actual HL structure, the door body 4
In order to improve the heat insulation effect, a translucent heat ray reflecting film 81 is stretched between the transparent glass plates 82.

Both the upper and lower end portions of the door body 4 on the pivot side 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 end of the door body 4 is guided and slidably supported in the front-rear direction along the side inner surface of the storage box body 2. -h slightly inside the pivot side end of the door body 4 at the second guide part 86
When the storage box body 2 is opened 11), it is guided and slidably supported in the left and right direction. A support shaft 87.88 is provided protruding from the portion of the door body 1 supported by the first and second guide portions 85.8G. 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 material and are connected to one end of the electric heater 83 with a screw. The reinforcing member 89 is made of an insulator. The structure of the connection part between the electric heater 83 and the support shaft 88 is shown in FIGS. 13 and 1.
This is shown in the cross-sectional view of Figure 4.

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 trust 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 85.8G include 1 that rolls and moves on the collar portion 901.
Sliding body 92.93 having a pair of rolling bodies 91 after 1X1
is stored. A support shaft 87 of the door body 1 is attached to the front part of the sliding body 92 of the first guide part 85. Second guide part 86
A support shaft 88 is attached to the pivot side of the sliding body 93.

When the door body 1 is in the closed state, its pivot side portion is the first point]
in the position shown in the figure. In this state, when you try to open the door by pulling the movable side of the door body forward, a force that tries to rotate around the support shaft 88 acts on the support shaft 87, and the support shaft 87 moves along the first guide part 85. This results in a force acting to move it inward. The support shaft 87 is connected to the first guide part 85
When a force is applied to move the support shaft 88 along the second guide portion 86, a force that tries to move the support shaft 88 along the second guide portion 86 acts on the support shaft 87, 88. The force that tries to open the door body 4 moves the support shaft 87 along the first guide part 85 toward the Vj side,
This is a force that moves the support shaft 88 toward the second guide portion 86 in the vertical direction, and guides the door body 4 to open it. As a result of this operation, the pivot side of the door body 4nlp is pushed in along the side inner surface of the upper storage box body 2 in the open state as shown in FIG. By inserting the pivot side of the door body 1 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 inserted into the upper storage box body 2 even during opening, the space of the door body 4 for opening can be reduced. The opening/closing operation of the door body 4 can be performed in the same way as the opening/closing operation of a door body which is pivoted by 1+;;':, and the pivot side portion can be inserted without requiring a pushing operation of the door body 4. .

In this embodiment of the illumination construction, since the electric heater 83 is attached to the door body 4, it is necessary to supply electricity. 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 mounted. Sliding contact 94.
95 is biased by a spring body! However, they protrude from the upper surfaces of the sliding bodies 92 and 93. Fixed contacts 96.97 that contact sliding contacts 94.95 are formed on the inner surface of the first and second guide parts.

When the sliding contacts 9 and 1.95 come into contact with the fixed contacts 96 and 97, a power supply circuit to the electric heater is formed. The fixed contacts 96 and 97 are connected to the sliding contact 94 when the door body 1 is closed.
．． 95 is formed only at the position where it contacts. Therefore, power is not supplied to the electric heater 83 when the door body 4 is opened, and power is supplied only when the door body 4 is closed.

Connect the power/non-power switch to sliding contact 94.95 and fixed contact 96.9.
7 is also used, which reduces the number of parts and simplifies the structure.

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 a seal body 98 to the front flange 10 of the upper decorative frame body 8 and bringing the front side of the door body 4 on the pivot side into contact with the seal body 98. A seal body 9 is provided at the upper and lower ends and the open end of the
9, and the open side ends of the door bodies 4 are brought into contact with each other and the -L storage box body 2 is later brought into contact with the inner surface.).

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, by locating the pillars at the rear corners on both sides of the storage box, the members forming the pillars can have a cross-sectional shape, which requires less material compared to cylindrical or U-shaped. There are things that can be saved. Regarding the mounting structure of the pillar to the storage box body, there are various methods: screwing, screwing after hooking a part, fixing using fixing metal fittings, :! 'It's good.

2. Effects of the Invention The present invention allows a person to draw in cold air from the locking hole or ventilation hole of the support, and to use the support as a ventilation duct, thereby simplifying the structure.
B can make the flow of cold air uniform, improving cooling efficiency.

[Brief explanation of drawings]

1 shows one implementation structure of the present invention, FIG. 1 is a central longitudinal section and a side view, FIG. 2 is a front view of the storage, and FIG. 3 is a front view of the storage compartment.
Front view of storage with open body, Figures 4 and 5 (see Figure 1)
Right side view taken vertically through parts that are different from the figure, 6th room is an exploded cross-sectional view in 5th figure, 7th figure is the cross section and 47 planes, 8th figure is the cross-sectional bottom view, 9th figure is the upper insulation box ceiling cross-sectional plan of the wall,
Figure 10 is a cross-sectional view with the door removed (two-sided view), Figure 11 is an enlarged cross-sectional view of the main part with the door closed, Figure 12 is an enlarged cross-sectional plan view of the main part with the door open, Figures 13 and 14 are longitudinal sectional views taken in different directions of the door support part, Figure 15 is a cross-sectional plan view of the pivot side part in the closed state of the door body, and Figure 16 is the upper rear of the upper storage box. Fig. 17 is a longitudinal right side view of the 1'' and 11! joint parts of the storage box body and the F storage box body. Body, 4 ・Door body, 21 Cooler, 22
・Hagome Sasuma, 2:I) Nokaze Seika, 24 blows, '1
j1'', 26 ・Dew pan, 27 ・1st air blower: ・, 28 ・F return duct, 41 ・L air duct, 42 ・・−1-1 return duct・, 13
Air outlet [], 44... Air blower, 45... Cooling A guide passage, ko1.52... Shelf, 53... Support, 54
・Interlocking 1F hole, 55・Shelf support body, 61...Lighting device θ, 62・Cylindrical frame body, 61・・Lump body, G5
Ventilation hole, 71.72...Reflector, 81 I frame,
82 ・Transparent glass plate, 83 Electric heater, 85
・First guide section, 86 ・Second guide section, 87.88
・ ・Support shaft, 92.93 Sliding body, 91.95 ・Sliding contact, Ko (, 96, 97 Fixed contact

Claims (1)

[Scope of Claims] 1. A storage box with an opening formed in the front, a door for opening and closing the front opening of the storage box, a shelf supported by a support inside the storage box, and a storage box that provides cold air to the storage box. In a low-temperature storage cabinet that has an air blower and a cooling device, a cold air outlet is formed on the upper inner surface of the storage box body, and a plurality of locking holes and ventilation holes are formed on the front wall of the column supporting the shelf. A low-temperature storage cabinet formed of a hollow body, with struts arranged at the inner rear part of the storage box body, and cold air inside the storage box sucked through a locking hole in the strut. 2. A storage box with an opening formed in the front, a door that rotates the front opening of the storage box, a shelf supported by a support inside the storage box, and a blower that sends cool air to the storage box. In the low-temperature storage cabinet having a cooling device, a cold air outlet is formed on the upper inner surface of the storage box body, and a column supporting the shelf is formed of a hollow body with a plurality of locking holes formed in the front wall, A low-temperature storage cabinet in which a support is disposed at the rear of the inside of the storage box, and cold air inside the storage box is sucked through a locking hole in the support. 3. A storage box with an opening on the front, a door that opens and closes the front opening of the storage box, a shelf supported by pillars inside the storage box, a blower that sends cool air to the storage box, and a cooling device. In a low-temperature storage cabinet having a storage box, a cold air outlet is formed on the upper inner surface of the storage box, a cold air suction port is formed on the lower inner surface of the storage box, and the shelf is formed of a non-ventilated plate. The pillars supporting the shelves are made of a hollow body with multiple locking holes formed in the front wall, and the pillars are placed on the rear inside of the storage box body, and the cold air inside the storage box is sucked through the locking holes in the pillars. A low-temperature storage warehouse.