JP3568309B2 - Thawing room - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a thawing cabinet for thawing frozen foods by humid air.
[0002]
[Prior art]
As a prior art prior to the present invention, Japanese Utility Model Publication No. 3-47183 (F25D17 / 08) discloses that a storage room for frozen food is formed in a refrigerator defined by a heat insulating box, and a storage room above the storage room is provided. In the upper part of the refrigerator, a refrigeration evaporator, an eliminator facing the air inlet surface of the evaporator at an interval, a blower for circulating cold air facing the air outlet surface of the evaporator, and an evaporator and the eliminator. Water was sprayed on the air inlet surface of the evaporator in between, and a low-inclined water sprinkler was disposed on the water inflow side, and a water collector was disposed under the evaporator, the eliminator, the blower, and the water sprinkler. A defroster is disclosed.
[0003]
As shown in FIG. 10, a draining member 101 for collecting sprinkling water on the side of the water collector is provided on the side of the water collector. The draining member 101 is composed of a stainless steel mounting plate 102 provided on the side of the sprinkler and a rubber draining plate 104 screwed to the mounting plate 102 with screws 103.
[0004]
[Problems to be solved by the invention]
Since a hole for fixing the screw 103 is formed in the draining member 101, there is a possibility that water sprinkles leak from this hole and drop out of the water collector. In order to prevent this, a sealing material must be provided at the hole of the screw 103, which leads to an increase in cost.
[0005]
The present invention has been made in view of such a problem, and provides a thaw storage provided with a draining plate for the purpose of preventing water leakage at a low cost as much as possible.
[0006]
[Means for Solving the Problems]
As means for achieving the above object, in the invention of claim 1, a storage chamber is formed in a refrigerator defined by a heat insulating box, and a refrigeration evaporator provided in the refrigerator above the storage chamber. And an eliminator facing the air inlet surface of the evaporator at an interval, a blower for cooling air facing the air outlet surface of the evaporator, and water spraying on the air inlet surface of the evaporator between the evaporator and the eliminator. a sprinkler for the evaporator, eliminator, a blower and a water collecting device disposed below the sprinkler, provided on the upper side direction of the catchment vessel, the water spray from the sprinkler in the water collecting-side A defroster provided with a draining plate for guiding and a mounting plate for detachably attaching the draining plate by a hooking structure, wherein the mounting plate is sandwiched by the draining plate and a drain hole is formed in a part of the draining plate .
[0007]
For this reason, the draining plate can be mounted without forming holes or the like in the mounting plate, and it is possible to prevent water leakage as much as possible , and to drain water that accumulates in a groove formed in the draining plate through a drain hole. Can be .
[0008]
Further, in the invention of claim 2, forms a protrusion on the mounting plate, providing a decompression chamber according to claim 1, wherein hooking that the water drainage hole for this projection. Therefore, Ru can be a pull hook structure with projections and drainage holes.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a vertical sectional view from the front of a thawing cabinet equipped with the present invention, FIG. 2 is a vertical sectional view from the side of a thawing cabinet equipped with the present invention, FIG. 3 is a sectional view of a drainer, and FIG. FIG. 5 is an AA sectional view of FIG. 4, FIG. 6 is a BB sectional view of FIG. 4, FIG. 7 is an assembled perspective view of another embodiment of the drain board, FIG. 7 is a sectional view taken along line AA of FIG. 7, and FIG. 9 is a sectional view taken along line BB of FIG.
[0011]
Reference numeral 1 denotes a thawing box having a main body constituted by a heat insulating box 2 having an open front surface, and a storage room 3 is formed in a chamber defined by the heat insulating box 2. In this storage room 3, trays 6 on which frozen foods are placed while being supported by slide rails 5 attached to shelf supports 4 are vertically arranged in a plurality of stages, and the front opening of the storage room 3 is opened and closed by a heat-insulating door 7. It is closed.
[0012]
Further, a humid and cool air generating chamber 8 is formed in the upper part of the storage above the storage chamber 3. The cool air generation chamber 8 includes a plate fin evaporator 11 having a heating heater 9 and a defrost heater 10, an eliminator 12 facing the air inlet surface 11A of the evaporator 11 at an interval, and an evaporator 12. And a water sprayer 13 having an injection nozzle 13A for spraying water toward an air inlet surface 11A of the evaporator 11, and two blowers 14 facing the air outlet surface 11B of the evaporator 11. The front surface of the generation chamber 8 is closed by a service door 15 that can be opened and closed.
[0013]
Thus, the water collector 16 is disposed opposite to the evaporator 11, the eliminator 12, the sprinkler 13, and the blower 14 provided in the humid and cool air generating chamber 8. In addition, a water storage tank 17 is provided in a lower part of the storage space below the storage room 3. The other end of the water supply pipe 18 having one end connected to the external water supply system and the other end of the return pipe 19 having one end connected to the water collector 16 face the opening of the water storage tank 17. The water supplied from the water supply pipe 18 and the water recovered from the water collector 16 through the return pipe 19 are stored by opening a water supply electromagnetic valve 21 controlled by a water level detection device 20 disposed therein. I do.
[0014]
Further, the bottom of the water storage tank 17 and the sprinkler 13 are connected by a feed pipe 23 provided with a pump device 22. The pump device 22 is disposed in a machine room 24 defined below the heat insulating box 2, and branches a drain pipe 25 from a feed pipe 23 on the outlet side of the pump device 22. The drain pipe 25 is normally closed by a pipe opening / closing mechanism 26, and the other end passes through a machine room 24 from a drain port 27 formed in the bottom wall of the heat insulating box 2, and a drain pipe 28 penetrating through the bottom wall of the machine room 24. It is connected to the.
[0015]
In FIG. 2, a drain plate 32 is provided above the water collector 16 (the front and rear sides of the heat insulating box 2). The draining plate 32 is detachably attached to a mounting plate 33 by a hooking structure. A tip portion 34 is formed of soft vinyl chloride, and a mounting portion 35 is formed of hard vinyl chloride. The drain plate 32 is manufactured by extrusion molding.
[0016]
As shown in FIGS. 3 to 6, the hook structure described above includes a mounting portion 35 extending in the longitudinal direction and formed by a base portion 36 and a hook portion 37 extending opposite to the base portion 36. It is a structure that sandwiches the mounting plate 33. A hook 38 extending in the longitudinal direction is formed at the tip of the hook 37, and a drain hole 39 for drainage is formed near the connection with the base 36.
[0017]
Further, a projection 40 is formed on the mounting plate 33 at a position facing the drain hole 39, and the projection 40 is hooked on the drain hole 39. A groove 41 is formed in the hook portion 37 so as to fit with the projection 40. The protrusion 40 of the mounting plate 33 and the groove 41 of the draining plate 32 are fitted to restrict the lateral movement. Is what you do.
[0018]
The structure shown in FIGS. 7 to 9 shows another embodiment, in which the tip of the mounting plate 33 is bent so that the claw 38 of the draining plate 32 fits into the end face of the bent plate. I have. Further, reference numeral 42 denotes a restricting plate for regulating the right and left direction formed at the bent end, and a cutout 43 is formed in a part of the hook 37 of the draining plate 32 so that the restricting plate 42 is fitted.
[0019]
The electric compressor, the condenser, and the condenser cooling blower that constitute the refrigerating apparatus together with the evaporator 11 are arranged in the machine room 24.
That is, according to the first aspect of the present invention, the storage chamber 3 is formed in the storage defined by the heat insulating box 2, and the refrigerating evaporator 11 provided in the storage above the storage chamber 3, An eliminator 12 facing the air inlet surface 11A of the evaporator 11 at an interval, a cool air circulation blower 14 facing the air outlet surface 11B of the evaporator 11, and an evaporator 11 between the evaporator 11 and the eliminator 12. and sprinkler 13 for sprinkling the air inlet surface 11A, the evaporator 11, eliminator 12, a water collecting device 16 disposed below the blower 14 and the sprinkler 13 is provided on the upper side of the water collecting device 16 A draining plate 32 for guiding water spray from the sprinkler 13 to the water collector 16; and a mounting plate 33 for detachably attaching the draining plate 32 by a hooking structure . Insert the drain hole 39 in a part of the draining plate 32 To provide a decompression chamber 1 that form.
[0020]
For this reason, the draining plate 32 can be attached without forming a hole or the like in the attaching plate 33, and water leakage can be prevented as much as possible, and water collected in a groove formed in the draining plate 32 is drained to the drain hole 39. Can be drained.
[0021]
Further, in the invention of claim 2, the projections 40 formed on the mounting plate 33, to provide a decompression chamber 1 of the hooking that the water drainage hole 39 relative to the protrusion 40 according to claim 1, wherein. Therefore, Ru can be a pull hook structure and the projection 40 and the drainage hole 39.
[0022]
To the next, a description will be given of the operation of the decompression chamber 1. This operation consists of four different operation modes, each of which is a thawing operation, a tightening operation, a cooling operation and a washing operation. By pressing the thawing button, the washing operation → thawing operation → washing operation → tightening operation → cooling operation Operation is automatically performed sequentially.
[0023]
First, in the cleaning operation, the water supply electromagnetic valve 21 is opened to supply water from the water supply pipe 18 to the water storage tank 17, and when a predetermined amount of water is supplied, the water level detection device 20 detects this and closes the water supply electromagnetic valve 21 to stop water supply. At the same time, the pump device 22 is operated, and the water in the water storage tank 17 is pressure-fed to the sprinkler 13 through the feed pipe 23, and is sprinkled from the injection nozzle 13A toward the air inlet surface 11A of the evaporator 11.
[0024]
This water falls into a water collector 16 arranged below the evaporator 11, and is collected in a water storage tank 17 through a return pipe 19. When a predetermined watering time has elapsed, the pump device 22 stops and the watering operation ends, and at the same time, the water distribution pipe 25 is opened by the pipeline opening / closing mechanism 26, and the water in the water storage tank 17 passes through the drainage pipe 25 and the drainage pipe. All drained from 28. This drainage operation is controlled temporally, and after a lapse of a predetermined time, the water distribution pipe 25 is closed to terminate the drainage operation.
[0025]
In the subsequent thawing operation, the water supply electromagnetic valve 21 is first opened to supply water from the water supply pipe 18 to the water storage tank 17, and when a predetermined amount of water is supplied, the water supply electromagnetic valve 21 is closed to stop water supply. At the same time, the pump device 22 is operated, and the water in the water storage tank 17 is pressure-fed to the sprinkler 13 through the feed pipe 23, and is sprinkled from the injection nozzle 13A toward the air inlet surface 11A of the evaporator 11. On the other hand, the operation of the refrigerating apparatus that starts operation based on the completion of the cleaning operation is controlled such that the temperature in the refrigerator is maintained at, for example, 5 ° C., and the heating heater 9 and the defrost heater 10 freeze at the beginning of the thawing operation. In order to promptly raise the internal temperature, which is reduced by the influence of food, to the set temperature, the ON / OFF operation is performed at a set temperature slightly lower than the internal set temperature.
[0026]
Thus, the cool air that has undergone heat exchange in the evaporator 11 becomes humid, including the fine particles of water sprinkled on the evaporator 11, and the constant-temperature, humid cool air that has passed through the evaporator 11 with the high-speed airflow due to the operation of the blower 14 is: It is circulated to the storage room 3 to thaw frozen food.
By the way, all the water sprinkled on the evaporator 11 by the thawing operation is not included in the cool air and circulated, but falls from the evaporator 11 to the water collector 16 as surplus water. Further, the water that has bounced off from the evaporator 11 is prevented from further scattering backward by the eliminator 12, the water that falls from the eliminator 12 is collected by the water collector 16, and the water that falls from the blower 14 is also collected by the water collector 16. Then, the water scattered in the cool air generating chamber 8 is collected by the water collector 16 by the drain plate 32.
[0027]
In this manner, the water that has fallen into the water collector 16 is returned to the water storage tank 17 through the return pipe 19 and is reused. The thawing time varies depending on the type and amount of the frozen food, but is performed for a preset time based on empirical data, and the refrigeration unit, the blower 14 and the pump unit 22 are stopped, and at the same time, the drain pipe 25 is connected. Open, drain all the water in the water storage tank 17, and end the thawing operation.
[0028]
When the thawing operation is completed, the cleaning operation is started again. This washing operation is performed in exactly the same manner as the washing operation performed prior to the thawing operation, and clean water supplied to the water storage tank 17 is pumped by the pump device 22 to the sprinkler 13 through the feed pipe 23 by the pump device 22. After performing a water circulation operation for spraying water from the injection nozzle 13A of the water sprayer 13 to the evaporator 11 and collecting the water falling from the evaporator 11 to the water storage tank 17 through the feed pipe 19 for a predetermined time, all the water in the water storage tank 17 is drained. I do. At this time, the water in the sprinkler 13 is drained from the feed pipe 23 through the drain pipe 25 to the outside through the drain pipe 28 without remaining due to the inclination of the pipe part 13B.
[0029]
As a result, the drip and oil generated during the thawing operation and remaining on the water circulation circuits such as the evaporator 11, the water sprinkler 13, the return pipe 19, the pump device 22, and the feed pipe 23 are washed, and these water circulation circuit components are cleaned. To maintain.
When the cleaning operation is completed, the tightening operation is subsequently started. This tightening operation controls the operation of the refrigeration system so that the temperature in the refrigerator is kept slightly lower than 0 ° C., for example, -3 ° C., and operates the blower 14 to form an ice film on the surface of the food and drip. This is performed to reduce the outflow of water and to eliminate temperature unevenness between the surface temperature and the center temperature of the thawed food. That is, by the thawing operation performed at a temperature zone of 0 ° C. or more, an ice film is formed on the surface of the completely thawed food, so that a large amount of drip is prevented from flowing out, and moreover, there is no drip in the center of the food. When the thawing portion is present, the central portion is thawed by heat transfer from the thawing portion at a temperature of 0 ° C. or higher, and the surface temperature and the center temperature gradually balance. This fastening operation is also performed for a preset time.
[0030]
When the above tightening operation is completed, the cool keeping operation is subsequently started. In this cold-holding operation, the operation of the refrigeration system is controlled so that the temperature in the refrigerator is maintained at a temperature slightly lower than 0 ° C. and slightly higher than the tightening operation, for example, −1 ° C. This is done at a reduced speed.
By the way, the temperature set in the refrigerator (-1 ° C.) is a temperature (freezing point) at which loads of meat, fish, etc., which are often treated as frozen food, freeze, that is, the freezing point of meat is -1.7 ° C., and the freezing point of fish is The point is set at a temperature slightly higher than -1.3 [deg.] C., a so-called ice temperature.
[0031]
As a result, the thawed food is preserved for a long time in a high freshness state by such a cooling operation until it is cooked as required.
[0032]
【The invention's effect】
As described above, according to the first aspect of the present invention, a storage chamber is formed in a refrigerator defined by a heat insulating box, and a refrigerating evaporator provided in the refrigerator above the storage chamber; An eliminator facing the air inlet surface of the evaporator at an interval, a blower for circulating cool air facing the air outlet surface of the evaporator, and a sprinkler for spraying water on the air inlet surface of the evaporator between the evaporator and the eliminator. The evaporator, the eliminator, a water collector disposed below the blower and the sprinkler, and a drain plate provided on the upper side of the water collector and guiding water sprinkling from the water sprinkler to the water collector side, A mounting plate for detachably attaching the draining plate by a hooking structure , wherein the mounting plate is sandwiched between the draining plates to provide a defrosting box having a drain hole formed in a part of the draining plate .
[0033]
For this reason, the draining plate can be attached without forming a hole or the like in the mounting plate, water leakage can be prevented as much as possible at a low cost, and water collected in a groove formed in the draining plate is drained through a drain hole. Can be drained. Therefore, it is possible to provide a drain plate that can prevent water leakage as much as possible at low cost.
[0034]
Further, according to the invention of claim 2, forms a protrusion on the mounting plate, providing a decompression chamber according to claim 1, wherein hooking that the water drainage hole for this projection.
For this reason, a hooking structure can be formed between the projection and the drain hole. Therefore, Ru can provide the draining board as much as possible to prevent water leakage at a low cost.
[Brief description of the drawings]
FIG. 1 is a vertical sectional front view of a defroster equipped with the present invention.
FIG. 2 is a vertical sectional side view of a defroster equipped with the present invention.
FIG. 3 is a sectional view of a draining plate.
FIG. 4 is an assembled perspective view of a draining plate.
FIG. 5 is a sectional view taken along line AA of FIG. 4;
FIG. 6 is a sectional view taken along line BB of FIG. 4;
FIG. 7 is an assembled perspective view showing another embodiment of the draining plate.
FIG. 8 is a sectional view taken along the line AA of FIG. 7;
FIG. 9 is a sectional view taken along line BB of FIG. 7;
FIG. 10 is an enlarged sectional view of a draining member portion of a conventional thawing box.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Thaw storage 2 Heat insulation box 3 Storage room 11 Evaporator 11A Air inlet surface 11B Air outlet surface 12 Eliminator 13 Sprinkler 14 Blower 16 Water collector 32 Drain plate 33 Mounting plate 34 Tip 35 Mounting portion 39 Drain hole 40 Projection

Claims (2)

A storage chamber is formed in a refrigerator defined by a heat insulating box, and a refrigerator evaporator provided in the refrigerator above the storage chamber faces an air inlet surface of the evaporator with an interval. An eliminator, a blower for circulating cool air facing the air outlet surface of the evaporator, a water sprayer for spraying water on the air inlet surface of the evaporator between the evaporator and the eliminator, and below the evaporator, the eliminator, the blower and the water sprayer. a water collecting device disposed in provided in the upper side of said population condenser, removably attaching the water-shielding plate for guiding the water spray from the sprinkler in the water collecting device side, the water Setsuban by hooking structure A thawing box, comprising: a mounting plate, wherein the mounting plate is sandwiched by a drain plate, and a drain hole is formed in a part of the drain plate . 2. The defroster according to claim 1 , wherein a projection is formed on the mounting plate, and a drain hole is hooked on the projection .

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