JP3172824B2 - Cooling room - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator for cooling foodstuffs and the like.

[0002]

2. Description of the Related Art A refrigerator for cooling foods and the like (for example, see Japanese Patent Application Laid-Open No. 6-307756) prevents the propagation of various bacteria and keeps the inside of the refrigerator clean after use or after use. The interior of the warehouse has been cleaned before.

[0003] As a conventional cleaning method, a method in which an operator discharges water from a hose connected to a water pipe into a refrigerator and performs manual cleaning is common, but requires labor and insufficient cleaning. Or a problem associated with human work such as inability to wash uniformly.

[0004] For this reason, a cleaning method using a sprinkler is also known in other technical fields. In this method, water is supplied to the water sprinkler and water is sprinkled by the water sprinkler, and washing is performed by changing the water sprinkling direction while rotating the water sprinkler by the water flow. As a result, the washing is performed automatically without manual intervention.

[0005]

However, in the case of a cooling box, since an electrically operated blower is provided in the cooling chamber, there is a problem from the viewpoint of waterproofness when installing a water sprinkler in the box. Even if a water sprinkler is attached, since it usually depends on water sprinkling from the water sprinkler arranged on the ceiling of the cooling room, even if the walls and the like in the refrigerator can be washed, a blower or a cooler ( Cleaning of the evaporator and the like becomes insufficient. In particular, since the sirocco fan is arranged so that a plurality of blades are overlapped, and the cooler is provided with a large number of heat exchange fins, there is a problem that the details cannot be sufficiently cleaned even by an operator's manual operation. Was.

The present invention has been made to solve the problems existing in the prior art, and makes it possible to spray water in a refrigerator by improving the waterproofness of the blower, and to improve the structure of the blower and the like. It is an object of the present invention to provide a cooler that can easily and satisfactorily wash details in a cooler.

[0007]

According to the present invention, a part of the cooling chamber 6 is formed when the cooling chamber 1 having the blower 2 and the coolers 3f and 3r arranged in the chamber. A heat insulating shield 7 is provided, and a fan of the blower 2, for example, sirocco fans 8 u and 8 d is arranged on a front side 7 x on the cooling chamber 6 side of the heat insulating shield 7, and the sirocco fan is provided on a back side 7 y of the heat insulating shield 7. Motor 9 for rotating 8u, 8d
u, 9d, and a washing function unit 4 for spraying water from the sprinkling unit 5 arranged in the refrigerator to the rotating sirocco fans 8u, 8d for washing.

In this case, according to the preferred embodiment, the sirocco fans 8u and 8d are arranged at the center of the heat insulating shielding portion 7, and a pair of coolers 3f and 3r are arranged on both sides of the sirocco fans 8u and 8d. The water sprinkling section 5 has a function of spraying water inside the rotating sirocco fans 8u and 8d, and is formed separately from the water sprinkling pipe 10 that sprays water inside the sirocco fans 8u and 8d. And
The water supply pipe 12 is provided on the ceiling 11 of the cooling chamber 6 and supplies water W to the water sprinkling pipe 10. The sprinkler tube 10 is fixed to a hood 13 that covers the sirocco fans 8u and 8d.

As a result, the motors 9u and 9d for rotating the sirocco fans 8u and 8d are isolated from the cooling chamber 6 via the heat insulating and shielding part 7, so that the waterproofness of the cleaning function part 4 is enhanced and the motor 9u is rotated. , 9d is prevented from being transmitted to the cooling chamber 6. In addition, watering pipe 10
As a result, the blades in the sirocco fans 8u and 8d are washed, and the rotating sirocco fans 8 are rotated.
The water W scatters to the coolers 3f and 3r by u and 8d, and the coolers 3f and 3r are washed. The cooler 3
The wastewater remaining in f, 3r is discharged from the coolers 3f, 3r by blowing air from the sirocco fans 8u, 8d.
On the other hand, since the water supply pipe 10 fixed to the hood 13 covering the sirocco fans 8u and 8d and the water supply pipe 12 provided on the ceiling 11 are formed separately, the water supply pipe 12 and the water supply pipe 10 are not changed, and The hood 13 can be attached and detached for maintenance.

[0010]

Next, preferred embodiments according to the present invention will be described in detail with reference to the drawings.

First, the configuration of the cooling cabinet 1 according to the present embodiment will be described with reference to FIGS.

The refrigerator 1 has a device housing portion 20 in which a main part of the refrigerator is disposed, and a cooling portion 21 above the device housing portion 20. The cooling unit 21 has a cooling chamber 6 provided in the left half and a cooling unit Cu provided in the right half. The cooling unit Cu has a frame 17 shown in FIG.
Attach to In addition, the blower 2 is disposed at the center of the frame 17, and a pair of coolers (evaporators) 3 f and 3 r that are separated from each other on both sides of the blower 2. In this case, the blower 2 includes a pair of upper and lower blower units Fu and Fd, and the blower units Fu and Fd
Motors 9u, 9d attached to the back side 7y of the motor 9u, and the heat insulating shield 7
Sirocco fans 8u and 8d arranged in a frame 17 serving as a front side (cooling chamber 6 side) 7x. By arranging the motors 9u and 9d on the back side of the heat-insulating shield part 7, the waterproofness of the washing function part 4 described later is enhanced, and the heat generated by the motors 9u and 9d is transmitted to the cooling chamber 6. Is avoided. The sirocco fans 8u and 8d
The ventilation path in the refrigerator due to the rotation of
become that way. On the other hand, 13 is a sirocco fan 8u, 8d
Which are attached to and detached from the frame 17 by latches 18 provided at four places. Reference numeral 19 denotes a mesh fan cover attached to the hood 13 with screws 19n... Reference numeral 22 denotes an openable / closable door provided on the left front half of the cooling unit 21.

On the other hand, the cooling box 1 is provided with a washing function section 4. First, a water sprinkler (sprinkler) 23 for washing having a sprinkling port (nozzle) for sprinkling water in all directions and rotating by a water flow is disposed on the ceiling 11 inside the cooling cabinet 1. The sprinkler 23 is connected to an outlet port of a three-way valve 25 disposed above the outside of the ceiling 11 via a water pipe 24. In addition, three-way valve 2
A water pipe 26 is connected to one inlet port 5 and an inlet 27 is connected to the other inlet port of the three-way valve 25. The intake port 27 includes a filter 27f for preventing dust and the like from entering.

Further, the water guide pipe 24 is provided with a water sprinkling section 5. The water sprinkling section 5 includes a water supply pipe 12 branched from a water pipe 24,
The water supply pipe 12 is formed separately from the water supply pipe 12. The water supply pipe 12 extends vertically below the ceiling 11, and the water supply pipe 10 is fixed to the hood 13. The water sprinkling pipe 10 is branched from a main pipe part 10m arranged in the vertical direction, a lower water sprinkling pipe part 10d bent from a lower end of the main pipe part 10m to reach the inside of the sirocco fan 8d, and a middle part of the main pipe part 10m. And an upper sprinkling pipe portion 10u extending to the inside of the sirocco fan 8u. Each of the watering pipes 10u and 10d has a closed end, and a plurality of watering ports (nozzles) 10n on the lower surface.
And inclined downward so that the tap water does not remain. On the other hand, a large-diameter hopper 10s is provided at the upper end of the main pipe 10m. The hopper 10 s is disposed below the lower end of the water supply pipe 12 and receives tap water supplied from the water supply pipe 12. In this case, a slight gap is provided between the lower end of the water supply pipe 12 and the upper end of the main pipe 10m. Thus, the hood 13 can be attached and detached without changing the water supply pipe 12 and the water sprinkling pipe 10.

On the other hand, a drain 31 is provided at the bottom of the cooling chamber 6. The drain unit 31 includes an odor trap unit 32 as shown in FIG. The odor trap portion 32 includes a water storage cup 34 for storing a fixed amount of water, a drainage cylinder 35 provided at the center of the water storage cup 34, and a drainage tube cover 36 that covers the upper side and the upper side of the drainage tube 35. The odor trap section 32 is detachable from the floor surface 33. As a result, a certain amount of wastewater always accumulates in the water storage cup 34, the inside and the outside of the cooling chamber 6 are shut off, and the wastewater overflowing from the water storage cup 34 is discharged through the drainage cylinder 35 and the drainage pipe 37. .
A check valve 38 is provided at the lower end of the drainage cylinder 35, and the floor surface 33 of the cooling chamber 6 is inclined toward the odor trap 32.

Next, a method of cleaning the inside of the refrigerator 1 according to the present embodiment will be described with reference to the drawings.

Now, while stopping the operation of the cooling cabinet 1,
It is assumed that the empty chamber is to be cleaned.

First, the three-way valve 25 is switched to connect the sprinkler 23 and the water supply pipe 12 to the water pipe 26. As a result, water is sprinkled from the sprinkler 23, and the inside of the refrigerator is automatically cleaned. In this case, water is sprinkled in four directions from the water spout of the water sprinkler 23, and the water sprinkler 23 is rotated by the water flow, and the water sprinkling direction changes sequentially. During water spraying, the blower 2 is operated.

On the other hand, tap water is also supplied to the water supply pipe 12,
Hopper 10s, main pipe 10m, watering pipe 10
u, 10d sirocco fan 8
Water is sprayed inside u, 8d. Thereby, as shown in FIG. 5, the blades 8 in the sirocco fans 8u and 8d are
are washed, and water (tap water) W is cooled by the rotating sirocco fans 8u, 8d.
, And the coolers 3f and 3r are washed.
The wastewater remaining in the coolers 3f, 3r is discharged from the coolers 3f, 3r by blowing air from the sirocco fans 8u, 8d. 5 and 6, an arrow W indicates a path of sprinkled water (tap water).

When the preset cleaning time has elapsed, the cleaning is terminated. That is, the three-way valve 25 is switched to stop water supply, and the sprinkler 23 and the water supply pipe 12 are connected to the intake port 2.
Connect to 7. At this time, the operation of the blower 2 stops.

Next, while the blower 2 is stopped, a refrigerator (not shown) is operated to cool the coolers 3f and 3r. Further, if a preset cooling time has elapsed from the start of the operation of the refrigerator, the blower 2 is operated. Thereby, the air in the refrigerator is rapidly cooled, the volume of the air shrinks, and the interior of the refrigerator is reduced in pressure. As a result, the outside air is forcibly sucked from the intake port 27, and the remaining tap water in the water sprinkler 23 and the water sprinkling pipe 10 is reliably discharged to the outside, and freezing during use of the cooler 1 is prevented. At this time, since the check valve 38 closes the drainage cylinder 35 in the drainage part 31, the suction of outside air from the drainage part 31 is prevented.

On the other hand, if a preset decompression time has elapsed after the operation of the blower 2, the operation of the refrigerator is stopped.
In addition, ozone is supplied from an ozone generator (not shown) into the storage, and sterilization and deodorization in the storage are performed. Then, when the preset sterilization time has elapsed, the supply of ozone is stopped and the operation of the blower 2 is stopped. Thus, a series of cleaning steps is completed.

The embodiment has been described in detail above.
The present invention is not limited to such an embodiment.
For example, the fan does not necessarily have to be a sirocco fan. In addition, the case where the sirocco fan and the cooler are each used in a pair has been exemplified, but the respective quantities are not limited. In addition, the configuration, shape, quantity, method, and the like of the details can be arbitrarily changed without departing from the gist of the present invention.

[0024]

As described above, the cooling box according to the present invention is provided with the heat insulating shield part which constitutes a part of the cooling chamber, and the fan of the blower is arranged on the front side of the heat insulating shielding part on the cooling chamber side. In addition, a motor that rotates the fan is provided behind the heat insulating shield, and a blower that is electrically operated is provided with a cleaning function unit that sprays water from the water spray unit disposed in the refrigerator to the rotating fan to perform cleaning. Can be more waterproof
The heat generated by the motor can be prevented from being transmitted to the cooling chamber.

In addition, the cleaning function unit sprays water from the water spraying unit to the rotating fan. In particular, according to a preferred embodiment, water is sprayed to the inside of the rotating sirocco fan for cleaning, so that the structure is complicated. The cleaning of the details in the blower and the cooler can be performed easily and well.

[Brief description of the drawings]

FIG. 1 is a front view in which a part of a cooling box according to the present invention is cut off,

FIG. 2 is a side view in which a part of the refrigerator is opened,

FIG. 3 is a perspective view of a cooling unit in the cooling box.

FIG. 4 is a vertical cross-sectional view showing a water sprinkling section in the cooling box;

FIG. 5 is a layout diagram of a cooling unit in the cooling box,

FIG. 6 is a plan view showing the principle of the refrigerator,

FIG. 7 is a cross-sectional view showing a drainage part of the refrigerator,

FIG. 8 is an external perspective view of the cooling box,

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cooler 2 Blower 3 Cooler 5 Sprinkler part 4 Cleaning function part 6 Cooling room 7 Heat insulation shield part 7x Front side of heat insulation shield part 7y Back side of heat insulation shield part 8u ... Sirocco fan 9u ... Motor 3f ... Cooler 10 Water sprinkling pipe 11 Ceiling 12 Water supply pipe 13 Hood W Water

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) F25D 11/00 101 F25D 17/06 304 F25D 23/00

Claims (6)

(57) [Claims] In a cooling box having a blower and a cooler disposed therein, a heat insulating shield constituting a part of a cooling chamber is provided, and the heat insulating shield is provided on a front side of the heat insulating shield which is closer to a cooling chamber. A fan is arranged, and a motor for rotating the fan is arranged on the back side of the heat insulation shielding unit, and a washing function unit is provided for spraying water from the sprinkling unit arranged in the refrigerator to the rotating fan to perform washing. A refrigerator that is characterized by the fact that: 2. The cooling box according to claim 1, wherein the fan is a sirocco fan. 3. The refrigerator according to claim 1, wherein the sirocco fan is disposed at a center of the heat insulating shielding part, and a pair of coolers are disposed on both sides of the sirocco fan. 4. The water sprinkling section has a function of spraying water inside a rotating sirocco fan.
The described refrigerator. 5. The water sprinkling part is formed separately from a water sprinkling pipe for spraying water inside the sirocco fan, and is separately provided from the water sprinkling pipe, and is disposed on a ceiling of the cooling chamber to supply water to the water sprinkling pipe. The cooling cabinet according to claim 1, comprising a water supply pipe. 6. The refrigerator according to claim 5, wherein the water sprinkling pipe is fixed to a hood covering the sirocco fan.