JPS6042580A - Refrigerated counter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (() Industrial application field The present invention relates to a refrigerated showcase equipped with a humidifier.

(b) Conventional technology The mist generated by an ultrasonic vibrator is supplied into the cold air passage of a refrigerated showcase to prevent fresh foods displayed and stored in the case from drying out and to maintain their freshness. Japanese Patent Application Publication No. 5
This method is proposed in Japanese Patent No. 5-46383. by the way,
In this conventional structure, a humidifying device equipped with an ultrasonic vibrator is installed at the front end of the upper part of a partition plate that forms a compressed air passage inside an insulating wall, and the mist generated by this humidifying device is transmitted through a diffuser. The cold air is supplied to the cold air passage upstream of the cold air discharge port. Therefore, the humidifying device of this conventional structure has the following drawbacks.

(2) Since the humidifier is disposed inside the food storage room of the refrigerated showcase, the humidifying water in the atomizing water tank and the water supply pipes that supply water to the atomizing water tank is cooled by cold air, reducing the humidifying capacity. (The higher the temperature of the humidifying water, the greater the total amount generated by the ultrasonic vibrator.) ■ The humidifying water in the atomizing water tank and water supply pipes may freeze when the operation is stopped, so do not use the atomizing water tank. It is necessary to provide a humidifying heater on the inner and outer circumferential surfaces of the water supply piping, which complicates the device.

■ Since the atomization water tank and water supply pipes are located inside the food storage room, they can be seen from the front, reducing the appearance.

(c) Purpose of the Invention The present invention has been made in view of the above-mentioned drawbacks of the prior art, and provides a humidifying device that is hardly affected by cold air, can perform a good humidifying effect, and can be used in a cold air passage. The purpose of this is to enable the mist from the humidifier to be efficiently blown out from the air outlet.

B) Structure of the Invention In order to achieve the above-mentioned objects, the present invention provides a cold air passage in which a cooler and a blower are disposed between the inner wall surface of the heat insulating wall having an open side surface and the partition plate forming the storage chamber. A blowout port and a suction port are formed to face each other at both upper and lower ends of the opening, and a rectifying plate made of a perforated plate or the like is installed in the cold air passage near the blowout outlet on the side of the cold air passage. The cooling air passage is arranged along the rectifying plate, and is configured so that the discharge port of the outlet pipe for transporting the mist generated by the humidifier installed on the upper surface of the heat insulating wall faces the cold air passage in the vicinity of the rectifier plate. It is something.

(e) Examples Examples of the present invention will be described below. In the figure, (1) is a refrigerated case whose main body is made up of a heat insulating wall (3) with an opening (2) for entry and exit on one side, such as the front, and (4) is a refrigerated case with multiple shelves (51 ( 5) A storage room equipped with...
6), and (7) is a cold air passage formed between the inner wall surface of the heat insulating wall (3) and the partition plate (4), and the lower space (7a) of this cold air passage (7) is A blower (9) equipped with a propeller fan (8) and a cooler Ql are installed. (11), a bottle has an air outlet and a suction port provided oppositely at both upper and lower ends of the opening (2), and the cooler Q
(IK'''C Cooled air is forcibly circulated by the blower (9) as shown by the arrow in Figure 1, forming an air curtain at the opening (2) while cooling the inside of the storage chamber (6). Yes. Q3) & The cold air passage near the air outlet <11) is an oblong rectifying plate made of a perforated plate etc. arranged in the upper space (7b) of the air outlet. Cold air passage (7
) are provided along the lateral direction so as to block the area, and there are a large number of oblong through holes in two rows, upper and lower, at approximately equal intervals.
... are perforated to uniformize the air blown by the blower (9) and pressurize the cool air so that it can be evenly blown out from the air outlet 01). 04) is the suction port a
A humidity sensor installed near the humidifier controls the humidifier Q-equipment, which will be described later.

θQ is a humidifying device placed and fixed on the upper surface (3a) of the heat insulating wall (3), and the humidifying device a will be described in detail below. (L6) is an exterior body formed in a horizontally elongated and hollow housing shape by the circumferential side plate αη, the top plate Q81, the bottom plate, etc., and the left and right side walls (17a) (17b) of the circumferential side plate (IT) The outer casing (IT) is attached to the lower end of the refrigerated cylinder (IT).
A fixing piece CM) is bent to be placed and fixed on the upper surface of ), and the fixing piece has screw holes (21) (2])...
...is drilled. (A) is an atomization water tank made of stainless steel plate arranged on one side inside the exterior body ae by joining the upper end flange parts (C) and (C) to the lower surface of the top plate frame by spot welding, The atomizing water tank c! The top wall (22a) is open and is formed into a horizontally long rectangular shape when viewed from above, and the bottom wall (22a) has an ultrasonic transducer CI! 4C1!4)-
...... into the aquarium (221) 4 through holes @ (
C)... are bored in the longitudinal direction at predetermined intervals. c24 (Foundation) Knee... is the above-mentioned ultrasonic transducer that is liquid-tightly installed on the lower surface of the bottom wall (22a) corresponding to each of the through holes (2ω (c)...). The vibrator (241) is driven by a vibrator oscillator (a) (c) attached to the front wall of the water tank Q in a thermal manner,
A water column Qη(b) is generated on the water surface to generate fine dew particles.

(c) is a water supply pipe that supplies water from the water supply pipe into the water tank, and an electromagnetic on-off valve (to) is interposed at a suitable place in the middle of the pipe inside the exterior body. on one side of the tank and facing the upper part. c31) is an aquarium (
2.The first float switch installed on one side of the
This is to detect water shortage in the water tank by lowering the float and stop energizing the vibrator Q4) to prevent damage to the vibrator Q4 due to no-load vibration pressure. 021
is a second float switch disposed on the other side of the water tank c121, which opens the electromagnetic opening/closing valve (to) when the water level in the water tank (two) falls below a predetermined position, and opens the water inlet (ha). ) to supply humidifying water into the water tank.

03) is an overflow pipe with the upper end opening located approximately in the center of the water tank (2), and the electromagnetic on-off valve (
This can prevent the water level from rising above a predetermined level due to continued water supply in the event of a failure in the overflow pipe (g).

(Incorporated) is a lid plate that closes the upper opening of the water tank (Incorporated),
A partition plate C is provided on the bottom surface of the float switch Cl1)03 to prevent the influence of waves caused by the drive of the vibrator
351 (3fi) is fixed downward and the partition plate (to) (
There are four circular holes 07)0η... located inside the oscillator I2 and corresponding to each of the transducers I2, and this cover plate 04) has screws ( ) (to) the inward piece G formed on the short side of the upper end of the water tank (2'4)
1C5 is easy to attach and detach.

(41 (41... is the circular hole 07 of the cover plate 0)
By inserting the lower end into each of the vibrators HO4)...
・・K is a hollow cylindrical outlet pipe vertically installed inside the water tank (24) facing K, and there are many annular protrusions (4
1) (4υ...) are formed to form a so-called bellows shape, and the outlet pipe can be bent freely at the part where the annular protrusions (41) (41)... are formed. By doing so, the connection port (4) at the upper end is bent in a substantially inverted shape so as to open toward the side. It is a seal packing having elasticity of 43, which is sandwiched between the upper surface of the cover plate 04 at the periphery of the circular hole G? This prevents the mist in the water tank (C) from leaking directly from 0η.(44) A stop plate is attached, and the stop plate (44) has an annular protrusion (between 40 and Four engaging notches (4η(
4η... is formed to prevent each of the lead-out pipe bends that are passed through the lid body 04) from coming out. Each of the outlet tubes (41) is rotatable as shown by the arrow in FIG.

(The fan case (48a
) Toxic flow fan (48b) and the fan (48b)
) and a motor (48c) that drives the fan case (48
a) Suction into the fan case (48a) from the bottom side,
The air is forced into the water tank through the air outlet (48d). 6υ is a power transformer placed between the suction port (41) and the blower (4 camphors), and the nuclear transformer 6υ is cooled by the air flow sucked into the fan case (48a).

Reference numeral 1521 denotes an air flow outlet provided in the upper part of the tank wall of the water tank (C) so as to correspond to the air outlet (48d) of the air blower (481) and to be located above the lower end opening of the outlet pipe (41). As shown in FIG. 8, the air flow population 62 is formed in a horizontally elongated shape, and its left and right end portions are opened wider in the upper and lower portions than the center portion.63)
The water tank is located a little lower than the above-mentioned ventilation flow population 6 hot water (
2 and the blower (horizontal guide plate provided between the 4gl air outlet (48d), 54) I54) is connected to the horizontal guide plate 6□
□□ Vertical guide plates 54) 54) are vertically fixed on the top, and the vertical guide plates 54) are provided so as to be spaced apart from each other from the air outlet (48d) toward the air flow population, as shown in FIG. The vertical guide plate 64) and the horizontal guide plate 62 form an air passage (3) between the blower and the water tank c2. Also, (G) is a power plug, and 7 is a power switch.

The humidifying device Q5) configured as described above has a fixing piece (A) on the upper surface (3a) of the heat insulating wall (3) of the refrigerated case (1) as shown in FIG. Place and fix it with screws, etc., and then attach the outlet pipe (4 (1 (41...)
Rotate each of them to direct the connection port in any direction, and connect one end of the connection port (communication pipe a? made of 4B flexible pipe)... , the other end of each of these communicating pipes η is connected to the rectifier plate (1
3) and connected to four vibros I with discharge ports (a) facing into the cold air passage (7) located on the upstream side of the cold air flow than the current plate Q3. do. In addition,
From the viewpoint of humidifying effect, it is desirable that the vibro-cold air passage be faced at approximately equal intervals in the lateral direction of the force.Furthermore,
Water pipe 6I to water supply pipe @, and overflow pipe 0□□
The installation work can be completed by connecting the drainage pipes to the □, respectively, and inserting the power plug a'i into an outlet (not shown) provided at an appropriate position in the refrigerated case (1).

Next, the operation of the refrigerated white case of the present invention will be explained. First, when the refrigerated white case (1) is operated with the power switch (A) of the humidifier (151) turned on, the humidifier alone, the blower (C), and the ultrasonic oscillator (C) start, and the air outlet (48D) starts operating. ) The outside air is pumped in from the air flow population (
The water enters the atomizing water tank (2 hot water) from 53, and a water column (5) is generated on the water surface by driving the ultrasonic vibrator t24. The fog generated around the water column (5) is caused by the air blown from the blower decoy flowing into the outlet pipe (5).
40) and communication pipe 57), and is conveyed from the discharge port side of the vibro υ into the cold air passage (7) near the current plate (13).

On the other hand, in the cold air passage (7), the air sucked in from the suction port (12+) by the drive of the blower (9) is accelerated and heat exchanged with the cooler section, where it becomes a cold air flow in the upper space (7b).
) will be sent to. The cold air flow sent to the upper space (7b) merges with the mist supplied from the humidifying bag fa51, and then passes through the through holes (1) of the rectifier plate (13). The air is evenly blown out from the air outlet (11) and the storage chamber (6
) has a cooling and humidifying effect.

Therefore, by arranging the rectifying plate 03) horizontally in the cold air passage (7) near the outlet (Ill), the flow of cold air blown into the storage chamber (6) from the outlet (Ql) is uniform. The mist generated in one humidifier can be removed by a rectifier plate.
Since the pressure was applied to supply the cold air into the cold air passage (7) in the area close to 3), the mist flowing into the cold air passage (7) does not remain in the cold air passage (7) and is immediately removed from the air outlet (01) This can reduce condensation in the cold air passage (7).

(f) Effects of the invention Since the refrigerated showcase of the present invention is constructed as described above,
This produces the effects listed below.

■ - A cold air passage in which a cooler and a blower are installed is provided between the inner wall surface of the heat insulating wall with an open side and the partition plate forming the storage room, and a cold air passageway is provided in which a cooler and a blower are installed, and air outlets and A rectifying plate made of a perforated plate or the like is arranged along the lateral direction of the cold air passage in the cold air passage near the air outlet W1, and a part of the cold air passage near the rectifying plate is disposed in the cold air passage near the air inlet. By facing the outlet of the outlet pipe that conveys the mist generated by the humidifier, the flow of cold air blown out from the outlet can be made uniform, and condensation in the cold air passage can be reduced, resulting in a good performance. It is possible to perform a cooling effect and a humidifying effect.

■ The humidifier is installed on the upper surface of the heat insulating wall, and the mist generated by the humidifier is conveyed into the cold air passage through the outlet pipe, so the humidifier is hardly affected by the cold air. Therefore, it is possible to prevent the deterioration of the humidifying ability and freezing of the humidifying water, which are the drawbacks of conventional devices.

[Brief explanation of drawings]

FIG. 1 is a top perspective view of a refrigerated showcase according to an embodiment of the present invention, FIG. 2 is a vertical sectional view of FIG. 1, FIG. 3 is a cutaway perspective view of the main part of FIG. , FIG. 5 is a perspective view of the humidifying device alone, FIG. 6 is a vertical sectional view of FIG. 5, FIG. 7 is a plan sectional view of FIG. 5, and FIG. 8 explains the atomization water tank part. Main part cutaway sectional view 0 (1)... Refrigerated showcase, (2)... Opening, (
3)...Insulating wall, (4)...Dividing board, (6)...
・Storage room, (7)... Cold air passage, (9)... Blower, 001... Cooler, αl)... Air outlet,
αri... Suction port, H... Rectifier plate, Q51...
・Humidifying device, (41... Outlet pipe. Figure 6 42 0

Claims (1)

[Scope of Claims] +1) - A cold air passage in which a cooler and a blower are disposed is provided between the inner wall surface of the heat insulating wall having an open side and a partition plate forming a storage room, and a cold air passageway in which a cooler and a blower are disposed is provided at both upper and lower ends of the opening. A blowout port and a suction port face each other to form a chamber, and a rectifying plate made of a perforated plate or the like is disposed in the cold air passage near the blowout port in the lateral direction of the cold air passage. A refrigerated showcase in which a discharge port of an outlet pipe for transporting mist generated by a humidifier installed on the upper surface of the heat insulating wall faces a cold air passageway in a region close to the board. (2) The refrigerated showcase as set forth in claim 1, wherein the mist generating means of the humidifier is an ultrasonic vibrator.