JPH0678861B2 - Cold storage - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] The present invention relates to a low-temperature cabinet for forcibly circulating air cooled by a cooler to cool the inside of an exhibition box. The present invention relates to a low temperature warehouse in which a connecting portion of a blower duct that allows a cooling chamber in a box and a machine room in a machine box to communicate with each other in air can be simplified.

Conventional technology In order to convey fluid from one chamber to another chamber, it is common practice to connect both chambers with a pipe, but to increase the flow rate of the fluid or to use a heat insulating material for the pipe. It is often the case that the fluid is not affected by the thermal influence from the outside, such as by covering with. On the other hand, Japanese Utility Model Publication No. 62-44304 proposes a structure that facilitates connection of a water pipe to a drain when the drain is formed at the bottom of the heat insulating box. Not limited to this publication, many heat insulating boxes are filled with a heat insulating material between the inner and outer boxes, and the drain section is configured so that the lower end of the drain section does not project downward from the bottom surface of the outer box. A space is formed around the end to facilitate connection with another tubular body. In this publication, a liquid is used as a fluid, and since it is not necessary to convey this liquid adiabatically, the periphery is not covered with a heat insulator.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the above publication, the drainage pipe and the drainage part are not covered with a heat insulating material because they are not necessary, but those which need to be transported adiabatically as a fluid, for example, cold air When the above is mentioned, it becomes necessary to cover the drain pipe, the drain portion, and the periphery of the connecting portion with the heat insulating material. In this case, as a procedure, it is necessary to connect the drainage pipe to the drainage part and then perform the work of disposing the heat insulating material around the connection part and the drainage pipe. Further, there is a problem that the heat insulating material disposing work cannot be performed unless there is a space around this portion that can sufficiently perform the work.

Therefore, the present invention provides a low-temperature warehouse provided with a duct connecting member that is configured as a heat insulating connecting member for connecting the display box and the air duct, and that can be easily attached to and detached from the display box. That is the subject.

[Structure of Invention]

Means for Solving the Problems The cold storage of the present invention has been proposed to solve the above-mentioned problems, and a cold air inlet to a cold air supply unit for introducing cold air into a product storage room surrounded by a see-through member. And an exhibition box in which cold air return ports of the cold air return section for collecting the cool air in the product storage room are arranged side by side, a supply pipe for transporting the cool air cooled in the machine room and a return pipe for transporting the return cool air to the machine room, respectively. A ventilation duct covered with a heat insulating material, an inlet pipe part that communicates one end with the cold air inlet and the other end with the supply pipe, and an outlet pipe part that communicates with one end with the cool air return port and the other end with the return pipe And a duct connecting member which is formed by coating a heat insulating material and is detachably fitted to the display box.

Action It is a very simple work of fitting the duct connecting member to the exhibition box (specifically, the cold air inlet and the cold air return port) in which the outlet pipe part and the inlet pipe part are covered with the heat insulating material in advance, The air duct is connected to the display box. Further, since the cool air inlet and the cool air return port are provided side by side, it is possible to arrange the inlet pipe and the outlet pipe portion of the duct connecting member side by side and the supply pipe / return pipe of the blower duct side by side.

Embodiments Embodiments of the present invention will be described below with reference to FIGS. 1 to 7.

(G) is a display stand arranged in a store such as a pharmacy or a discount shop, and a leg member (T) having an unused space (S) is arranged below a room for displaying products.

(1) is a closed-type display box (2), which is formed separately from the display box, stores mechanical parts, and draws cooling air, that is, cool air, for example, the display box such as the unused space (S) A machine box (3) having a machine room arranged at a position distant from (2) and both boxes (2) and (3) communicate with each other so that air can flow, and a heat insulating material for suppressing a temperature rise of cold air. A low-temperature storage comprising a blower duct (4) having both reciprocating cylinders (6) and (7) covered with (5), and changing the temperature range to be controlled according to the type of products to be stored. Frozen / refrigerated /
It can be used separately for ice temperature and heating, but in this example, a refrigerated showcase will be described as an example among the low temperature showcases.

The display box (2) is mounted on the display base (13) and the base (11) having the display base (13) on which the sale product is placed and which is rotatably and detachably held. A display (G), etc. is constructed on a display stand (G), etc., which is composed of a lid (hereinafter referred to as a hood) (14) that surrounds a product and defines a product storage chamber (12) above the base (11). It is to be placed on.

The base (11) has a substantially circular shape in plan view and has a product storage chamber (1
The ventilation room (1
5), an illumination chamber (16) is formed in the lower stage, and both chambers (15) and (16) have a partition plate (17) and a heat insulating material (18) and a translucent member having a heat insulating property, for example, three. Separated by a layer of transparent glass (19).

The partition plate (17) is a circular annular horizontal portion (17A) that receives the lower end (more specifically, the packing (30)) of the lid body (14) described later.
And an inclined part (17B) having an inclination from the horizontal part (17A) to the cool air return port (22) and a mounting part (17C) on which the three-layer transparent glass (19) is mounted and the opening (17F) is formed. ) And. Further, the partition plate (17) is provided with a rising rib (17D) for preventing dew drops moving downward along the inclined portion (17B) from reaching the mounting portion (17C). ) Is formed (continuously) on the outer peripheral side and around the cold air inlet (21).

An example of the ventilation chamber (15) will be described below.
5) is the display stand (13) located at the bottom of the product storage room (12)
The partition plate (17) and a partitioning member (20) partitioning the high and low pressure space. The partitioning member (20) is provided with a ventilation duct (4) laterally from the machine box (3). It has a cold air inlet (21) for taking in the carried cold air, and a cold air supply part (24) as a high-pressure space having a cylindrical shape in a top view in which openings (23) as cold air outlets are formed on the upper surface, respectively. (twenty four)
The periphery of the side wall serves as a cold air return section (25) as a low pressure space. Here, the cold air introduced from the cold air inlet (21) is guided toward the opening (23), but if the opening is formed so as to match directly below the central portion of the exhibition stand (13), the exhibition stand (13) will be formed. A larger amount of air is blown out from the air outlet formed in the central portion of the hood (14) than other air outlets, and the hood (14) is likely to hit the zenith portion, and fogging tends to occur in this portion. In addition, the blown out cold air is drawn into the cold air return port (22) that is installed in parallel with the cold air inlet (21), so it will be difficult for the cold air to reach the other side from the center of the display stand (13), and the product will be stored. A part that cools well and a part that does not cool very much are formed in the chamber (12), which causes a problem that the temperature distribution in the chamber becomes uneven. Therefore, the cold air inlets (21) are biased toward one side from the position directly below the center position of the display stand (13) to form the openings (23) respectively. That is, in this example, the circular opening (23) is formed by locating the center of the upper surface of the cool air supply unit (24) on the other side of the position directly below the center of the display stand (13). The opening (23) is not limited to the circular shape and may be a rectangular shape or an elliptical shape.

On the other hand, in the lighting room (14), a lighting device including a fluorescent lamp (26) as an annular lighting lamp is arranged directly below the transparent glass (19),
A ventilation part (27) having a diameter smaller than that of the fluorescent lamp (26) is provided at the bottom of the main body (11A) that forms the outer shape of the base (11), and a hinge part (at the rear of the main body (11A) ( The exhaust part (28) is formed in the vicinity of (H). The ventilation part (27) is provided with a grid (27B) formed in a grid pattern and a mesh filter (not shown) for preventing invasion of dust and harmful insects. The light emitted from the light lamp (26) is passed downward. In addition, the upper end of the main body (11A) is restricted from moving outward by a restriction flange (17E) that is vertically provided above the outer end of the horizontal portion (17A) of the partition plate (17), and (17A) The inward movement is restricted by the protrusion provided on the lower surface. The restriction flange (17E) extends outward from the horizontal portion (17A) when water droplets attached to the packing (30) arranged on the lower surface of the hood (14) collect on the horizontal portion (17A). It prevents dripping and also hides the packing (30) from the outside. In addition, in this example, the outer surface of the main body (11A) is coated with a paint such as a metal paint in order to eliminate the translucency. Here, as the transparent glass (19), a double-layered transparent glass in which a plurality of glass pieces (three in this example) are arranged in parallel with a space between each other is used to perform heat insulation by an air layer. It is translucent.
The power switch (29) of the fluorescent lamp (26) is arranged at an appropriate place on the base, for example, beside the cover (51) of the hinge (H), and the heater is automatically energized at least when the fluorescent lamp is off. It is preferable that

The hood (14) fits the inner and outer plates (31) (32), each of which is made of a transparent resin having a substantially hemispherical shape, with the lower peripheral edges of the plates, and has a predetermined space between the plates. And a circular annular spacer / combined frame (33) forming (P). Frame (3
A packing (30) is provided on the lower surface of (3) to keep the hood (14) and the horizontal portion (17A) airtight. A handle (34) protruding forward is formed at the lower front portion of the outer plate (32), and a mounting piece (35) protruding rearward at the lower rear portion and a pair of left and right first standing pieces (36) (36). ) And a pair of central second standing pieces (37, 37) are formed. Since the first and second upright pieces (36), (36), (37) and (37) extend from the back surface of the hood (14) to the upper surface of the attachment piece (35), they are mechanical members of the attachment piece (35). Strength is improved. Further, the first upright pieces (36) (36) are formed larger than the second upright pieces (37) to support a duct cover described later, and notches (38) are formed on the upper surfaces thereof. There is. Further, a hole (39) facing the boss of the fixing portion cover of the mounting piece (35) described later is formed.

The hinge device (41) has a U-shaped movable part (42), a fixed part (43) attached to the rear surface of the base (11), and the movable part (42) is vertically moved with respect to the fixed part (43). And a shaft (44) pivotally supported so as to be rotatable in any direction. A groove (45) for receiving the mounting piece (35) is formed in the movable part (42). After the mounting piece (35) is fitted into this groove, a screw is screwed from the lower side portion to the mounting side. By pressing (35), the movable part (4
The mounting piece (35) is fixedly attached to 2). Although not shown, a spring member such as a coil spring is housed in the fixed portion (43), and the spring member keeps the hood (14) at a predetermined opening angle. The hinge device (41) holds the hood (14) rotatably in the vertical direction within a certain angle range, and may be stopped at any angle within this angle range. . In addition, in this example, the hinge device (41) mounting piece (35) and the peripheral portion thereof are collectively referred to as a hinge portion (H).

In this example, the attachment piece (35) is supported by two hinge devices. When the dew attached to the outer surface of the hood is transmitted to this hinge device by the opening / closing operation of the hood, this dew drop is transmitted to the spring part of the hinge device and induces rust in the spring part, or other parts especially Since it may drip outside the showcase and wet the surrounding area,
The dew treatment piece (50) is attached so as to incline downward from the upper outer peripheral side of the fixed portion (43) of the hinge device (41) toward the horizontal portion (17A) of the partition plate (17).

(51) is the first cover (52) attached to the hood side
And a second cover (53) attached to the base side, which is a fixing portion cover for concealing the hinge device (41) and its peripheral components. The first cover (52) and the hood (14) may be arranged with a slight gap or may be brought into contact with each other to form a notch in the contact portion, and the hood (14) may be formed.
It is desirable to prevent dew that has moved along the outer surface from being transmitted to the outer surface of the first cover (52) and falling from the end thereof to the floor surface. On the other hand, a handle (34) for opening and closing the hood is formed on the lower front portion of the hood (14) so as to project laterally. The handle (34) and the hood (14) form a groove portion at their joint. It is preferable that the dew drop dripped directly from the handle (34) onto the floor surface be eliminated by forming a notch.

(55) is an inlet pipe part (56) that communicates one end side with the cold air inlet (21) and the other end side with the outward pipe (6), and one end side with the cold air return port (22) and the other end side with the return pipe. An outlet pipe part (57) communicating with (7) and an elastic heat insulating material (58) such as expanded polystyrene covered around both pipe parts (56) and (57).
(In this example, two heat insulating materials (58A) and (58B) were prepared)
And a connecting portion (59) for connecting a pipe body, which is formed on the other end side of both pipe parts (56) (57) and into which one end side of the air duct (4) is inserted.
Is a duct connecting member that integrates and, and from one end side of the connecting space (Q) formed around and below the cool air inlet (21) and the cool air return port (22) in the base (11). It is detachably fitted. However, the base (1
When fitted in the connecting space (Q) of 1), the connecting part (59) and both pipe parts (56) (5) are more than the extension of the bottom surface of the base (11).
It is desirable to prevent the other end of 7) from protruding.
Since the cold air inlet (21) and the cold air return port (22) formed in the partition plate (17) each have a cylindrical portion (21A) (22A) inclined downward toward the outside, Pipe section (56)
The outlet pipe part (57) forms inclined parts (56A) (57A) matching the above-mentioned inclination and hanging parts (56B) (57B) connecting the blower pipe (4) in the vertical direction. . Further, (60) is a fixing piece formed on the duct connecting member (55) for fixing the duct connecting member (55) to the mounting boss (67) of the base (11). It is fixed by a fixing member (68) such as a screw.

Reference numeral (61) is a connector portion (64) for connecting an electric wire (62) wired and connected in the lighting room (16) and an electric wire (63) extending from the machine box (3) side through the blower pipe (4). ), Etc., is a dew member for forming a connection space (R) below to prevent dew drops from falling into this connection space, and the duct connection member (55) is positioned at one end of this decoupling member. And a guide piece (65) for directing to a fixed state. The guide piece (65) is formed with an inclination larger than the inclination angle of the inclined portions (56A) (57A) to facilitate the introduction of the duct connecting member (55) on one end side and to expose it to the connection space (R). Prevents the penetration of drops.

Next, referring to FIG. 6 and FIG. 7, the duct connecting member (55)
The procedure for fitting the base into the base connection space (Q) will be described. The cold air inlet (21) and the cold air return port (22) are cylindrical (21A) (22).
A) An elastic sealing material (66) is provided on the outer surface of the surrounding heat insulating material (18).

First, a part of the inlet pipe portion (56) and the outlet pipe portion (57) of the duct connecting member (55) is made to face the inside of the connecting space (Q) first, that is, on the inclined portion side (FIG. 6). reference). Then, while partially contacting the guide piece (65) of the dew member (61), the connecting member (55) is pushed toward the inside of the space (Q) to inject the inlet pipe section (56) and the outlet pipe section. One end side of (57) is connected to the cold air inlet (21) and the cold air return port (22), respectively. At this time, the sealing material (66) is crushed by the heat insulating material (58) of the duct connecting member (55), and the heat insulating material (18) on the base side is crushed.
And the heat insulating material (58) on the connecting member side are closely contacted and connected (see FIG. 7). Also, the dew member (61) and the fixing piece (60)
The connector part (64) of the electric wire is stored in a space surrounded by and (this is the connection space (R)).

According to the above configuration, the inlet pipe section (56) and the outlet pipe section (5
The duct connecting member (55) in a state in which a heat insulating material (58) is preliminarily coated around the periphery of 7) is arranged one end side first with respect to the connecting space (Q) formed in the display box (2). By fitting, the cold air inlet (21) and the inlet pipe part (56), the cold air return port (22) and the outlet pipe part (57), the heat insulating material (18) on the display box side, and the heat insulation on the duct connecting member side. The material (58) is connected and connected to each other, and the connecting portion with the blower pipe (4) can be formed on the display box (2) side. At this time, it is not necessary to newly cover the heat insulating material at the connecting portion between the tubular bodies and the contact portion between the heat insulating materials, and there is no need to provide a working space for inserting fingers, so that the size and weight of the display box itself can be reduced. Can be achieved. Further, since the connecting portion with the blower pipe can be formed by performing the fitting operation of the duct connecting member, the attaching operation of the connecting member becomes very easy. Furthermore, if a connecting space is formed below the portion where the hinge part that holds the lid rotatably is arranged, the parts where accessories are attached to the exhibition box can be concentrated in one place. The miniaturization can be promoted.

〔The invention's effect〕

As described above in detail, according to the present invention, by fitting the duct connecting member alone to the display box, the cold air inlet and the inlet pipe portion and the cold air return port and the outlet pipe portion can be connected to each other. Since the heat insulating material is already disposed around the part, the work of covering the heat insulating material after connection is unnecessary. Further, since the cool air inlet and the cool air return port are provided side by side, the duct connecting member can be easily integrated, and the blower duct can be unified, so that the duct connecting member and the blower duct can be connected together. It will be easy.

[Brief description of drawings]

Each drawing shows one embodiment of the present invention, FIG. 1 is a perspective view of both before fitting the duct connecting member to the base, and FIG. 2 is an exploded perspective view before mounting the showcase on the display stand. Fig. 3 is a vertical sectional view of the display box, Fig. 4 is a perspective view of a partition plate, Fig. 5 is a perspective view showing a hinge portion of the display box, and Figs. 6 and 7 are display boxes of duct connecting members. It is a longitudinal cross-sectional view showing the fitting to the. (1) ... Low temperature warehouse, (2) ... Exhibition box, (3) ... Machine box,
(4) ... Blower duct, (12) ... Product storage room, (14) ... Hood, (17) ... Partition plate, (18) (58) ... Heat insulation, (21)
... Cold air inlet, (22) ... Cold air return port, (24) ... Cool air supply unit, (25) ... Cool air return unit, (Q) ... Connected space, (55) ...
Duct connecting member, (56) ... inlet pipe portion, (57) ... outlet pipe portion, (59) ... connecting portion, (61) ... exclusion member.

Claims (1)

[Claims] 1. An exhibition in which a cold air inlet of a cold air supply unit for introducing cold air into a product storage chamber surrounded by a see-through member and a cold air return port of a cold air return unit for collecting cold air in the product storage chamber are arranged side by side. A box, a supply pipe that conveys cool air cooled in the machine room, and a blower duct in which a return pipe that conveys return cool air to the machine room is covered with heat insulating material, respectively, and one end is the cold air inlet and the other end is the supply pipe. An inlet pipe part communicating with each of the above and one end of the outlet pipe part communicating with the cold air return port and the other end communicating with the return pipe are formed by coating a heat insulating material around the outlet pipe part and are detachably fitted to the display box. A low-temperature storage, comprising a duct connecting member.