JP6946125B2 - Cooler - Google Patents

Description

The present invention relates to a cooler.

Conventionally, as a cooling chamber, for example, the one described in Patent Document 1 is known. Patent Document 1 describes a configuration including a cleaning mode for cleaning the cooling chamber of the cooling cabinet and a drying mode for drying the cleaned cooling chamber. After cleaning the cooling chamber, the drying mode ensures that the drying is performed to prevent the growth of germs in the cooling chamber.

JP-A-2017-26264

In the above configuration, even if the cooling chamber is dried in the drying mode, there is a problem that the temperature in the cooling chamber generally does not reach the sterilization temperature (generally 80 degrees) in the drying mode, so that the sterilization cannot be sufficiently performed. ..

The present invention has been completed based on the above circumstances, and an object of the present invention is to provide a cooling chamber capable of reliably sterilizing a cooling chamber.

In order to solve the above problems, the cooler of the present invention is a cooler that can be operated in the sterilization mode, and is provided with a box-shaped cooler main body and a cooler provided inside the cooler main body. The internal fan that circulates the generated cold air inside the cooler body, the heater that raises the temperature inside the cooler body, and the ventilation of the outside air to the inside of the cooler body are blocked or opened. A first valve that enables this, a vent that is provided by opening inside the cooling cabinet body and ventilates the inside air from the inside of the cooling cabinet body to the outside, and a vent that ventilates the inside air from the inside of the cooling chamber body to the outside. A second valve that can be shut off or opened is provided, and in the disinfection mode, the heater and the internal fan operate in a state where the first valve and the second valve are closed. ..
When the temperature inside the cooler body is raised by the heater, the heat inside the cooler body can be prevented from escaping to the outside by closing the first valve and the second valve. As a result, the temperature inside the cooler body can be raised to the sterilization temperature, and sterilization can be performed.

Further, a blower fan provided outside the cooler body, a water storage tank provided outside the cooler body, and an opening provided in the bottom wall of the cooler body, and the inside of the water storage tank. It is provided with a water passage port that allows water inside the cooler body to pass through to the water storage tank, and the water passage port blows air from the blower fan through the water storage tank to the cooler body. It can be configured to be ventilated to.
Since the air blown from the blower fan flows to the inside of the cooler body through the inside of the water storage tank and is ventilated, the inside of the cooler body and the inside of the water storage tank can be dried.

Further, the vent may be provided downstream of the internal fan.
Since the vent that opens inside the cooling cabinet body is located downstream of the inside fan, in the drying mode that dries the inside of the cooling cabinet body, the air from the inside cooling cabinet blows air to the outside of the inside air of the cooling cabinet body. The ventilation efficiency of the air is increased, and the drying efficiency can be improved.

Further, the heater is a defrosting mode for removing frost adhering to the cooler, and is a defrosting heater that operates with the first valve and the second valve closed, and the cooler main body. In the drying mode for drying the inside, the first valve and the drying heater that operates with the second valve open are separately provided, and in the disinfection mode, the defrost heater and the drying are provided. Both heaters can be activated.
By operating both the defrosting heater and the drying heater, the time required for raising the temperature inside the cooler body can be shortened as compared with the case where either one is operated to raise the temperature.

According to the present invention, it is possible to provide a cooler capable of sterilizing the inside of the cooler body.

Side sectional view of the cooler according to the embodiment Enlarged view of the vicinity of the drainer plate in FIG. Side sectional view of the cooling chamber showing the arrangement of the first injection unit when the internal fan cover and the internal fan are removed. Side sectional view of the cooler showing the arrangement of the heaters attached to the cooler Diagram of ventilation path from the side view Front view of the cooler with the door open Sectional drawing which shows arrangement of the 1st injection part from the front view Floor plan of the cooler Partial cutout plan view of the bottom wall by cutting out the ceiling wall of the cooler from a plan view Left side view of the first injection section Enlarged view of the first nozzle and the second nozzle of the first injection unit Perspective view of the second injection unit Perspective view of cross plate and drain strainer Check valve perspective view Top view of water storage tank Rear view of water storage tank

The cooling cabinet 10 of the present embodiment will be described with reference to FIGS. 1 to 16. In the following description, the X direction in FIG. 1 is forward, the Z direction is upward, and the Y direction in FIG. 6 is right.

The cooler 10 is a rapid cooler that cools high-temperature food after cooking in a short time, and is attached to the cooler main body 20 and the openings of the cooler main body 20 so as to be openable and closable, as shown in FIG. The door 70 is provided, a machine room 170 provided below the cooler main body 20, and a water storage tank 150 provided between the cooler main body 20 and the machine room 170.

The cooler body 20 is made of a heat insulating box, and as shown in FIGS. 1 and 6, between the upper ceiling wall 22, the lower bottom wall 26, and the side edges of the ceiling wall 22 and the bottom wall 26. It is composed of a pair of side walls 34 connecting the ceiling wall 22 and a rear wall 42 connecting the trailing edges of the ceiling wall 22 and the bottom wall 26. As shown in FIG. 8, a control box 60 is arranged on the upper surface of the ceiling wall 22 of the cooler main body 20 to perform various controls related to the cleaning operation and the like. Although not shown, the cooling cabinet 10 is separately provided with a control box for performing various controls related to the cooling operation and the like.

As shown in FIG. 6, a box-shaped cooler case 80 is fixed near the side wall 34 on the left side inside the cooler body 20. Both sides of the cooler case 80 are open. As shown in FIG. 3, the cooler 82 is housed inside the cooler case 80. The cooler 82 is a so-called evaporator, which is arranged so as to penetrate a plurality of plate-shaped fins arranged in the front-rear direction at predetermined intervals and a plurality of plate-shaped fins, and is folded back in a plurality of manners. It is composed of a refrigerant pipe having a different shape. When the compressed and condensed refrigerant passes through the inside of the refrigerant pipe of the cooler 82, the refrigerant is vaporized to take away heat from the surroundings, and the air around the cooler 82 is cooled. The compression and condensation of the refrigerant are performed by the compressor and the condenser in the machine room 170. The refrigerant that has passed through the cooler 82 is returned to the compressor again to form a refrigeration cycle. The right side of the cooler case 80 is a storage chamber 37 in which a storage shelf 35 for placing a tray for storing foodstuffs is arranged.

As shown in FIG. 4, a heater 84 is attached to the cooler 82. The heater 84 is composed of a drying heater 86 arranged on the upper side and a defrosting heater 88 arranged on the lower side.

As shown in FIG. 4, the drying heater 86 has a shape in which an electric heating rod that generates heat by energization is repeatedly bent once. The defrosting heater 88 has a shape in which an electric heating rod is repeatedly bent. The defrosting heater 88 is composed of an upper first defrosting heater 90 and a lower second defrosting heater 92.

As shown in FIG. 1, two internal fans 100 are provided on the right side of the cooler 82. An internal fan cover 102 is attached to the cooler case 80 so as to cover the internal fan 100 from the side opposite to the cooler 82. The internal fan cover 102 includes a plate-shaped cover main body portion 104 and two ventilation ports 106 provided so as to open in the cover main body portion 104. The two ventilation ports 106 have a grid pattern, and are provided at positions corresponding to the two internal fans 100. When the internal fan 100 operates, air is blown from the storage chamber 37 of the cooler main body 20 through the ventilation port 106 toward the cooler 82.

As shown in FIG. 4, an internal exhaust pipe 38 is inserted through the upper part of the rear wall 42 of the cooler main body 20 and the upper part of the rear surface of the cooler case 80. The opening at the other end of the exhaust pipe 38 in the refrigerator serves as a vent 36 for ventilating the inside air of the cooling cabinet body 20 to the outside. The vent 36 is located downstream, which is a portion of the internal fan 100 where the wind pressure is high. As a result, the ventilation efficiency of the inside air of the cooling chamber main body 20 to the outside is increased, and the drying efficiency when drying the inside of the cooling chamber main body 20 is improved. The other end of the internal exhaust pipe 38 is connected to a second valve 40 provided outside the cooling chamber main body 20.

As shown in FIG. 3, a first injection unit 110 is provided between the internal fan 100 and the cooler 82, which has a shape in which a plurality of elongated pipes are bent and bent, and can inject at a predetermined position while flowing a cleaning liquid. Has been done. As shown in FIG. 10, the first injection unit 110 extends in the direction from the rear to the front, passes through the upper part of the upper internal fan 100, and extends in the direction from the front to the rear. It includes a middle-stage injection unit 116 that passes between the upper and lower internal fans 100, and a lower-stage injection unit 120 that extends from the rear to the front and passes through the lower part of the lower internal fan 100. The upper injection unit 112 and the middle injection unit 116 are connected by the upper connecting unit 114, and the middle injection unit 116 and the lower injection unit 120 are connected by the lower connecting unit 118. The first injection unit 110 is provided with a first nozzle 122 and a second nozzle 124.

As shown in FIG. 7, the first nozzle 122 projects toward the cooler 82. As shown in FIGS. 3 and 10, two first nozzles 122 are provided in the upper injection unit 112 and two in the middle injection unit 116. As shown in FIG. 3, the second nozzle 124 is provided on the surface of the first injection unit 110 on the internal fan cover 102 side with a predetermined interval. As shown in FIG. 1, the first nozzle 122 and the second nozzle 124 are arranged outside the internal fan 100 in a plan view. When the cleaning liquid flows inside the first injection unit 110, the first nozzle 122 injects the cleaning liquid toward the cooler 82, and the second nozzle 124 injects the cleaning liquid toward the fan cover 102 in the refrigerator. The cleaning liquid sprayed from the first nozzle 122 cleans the cooler 82 and also cleans the back side of the internal fan cover 102 with the rebounding water. The second nozzle 124 cleans the back side of the internal fan cover 102.

As shown in FIG. 7, a second injection unit 130 is provided in the center of the ceiling wall 22 of the cooler body 20. The second injection unit 130 is a so-called rotary nozzle that rotates to inject the cleaning liquid, and extends in one direction intersecting the axial direction with the rotary shaft 132 protruding downward from the ceiling wall 22 and the rotary shaft 132. It includes one pipe 134 and a second pipe 138 extending from the rotating shaft 132 in a direction opposite to one direction. As a result, the first pipe 134 and the second pipe 138 rotate in a plane parallel to the ceiling wall 22.

As shown in FIG. 12, a horizontal nozzle 136 is provided at the tip of the first pipe 134. A vertical nozzle 140 is provided at the tip of the second pipe 138. The tip of the second pipe 138 is bent diagonally downward. A branch pipe 142 is provided so as to project downward from the second pipe 138. A lower injection nozzle 144 is provided at the tip of the branch pipe 142.

The nozzle hole of the vertical nozzle 140 has an elongated hole shape that is long in the vertical direction, which is the direction orthogonal to the plane direction (horizontal direction here) parallel to the ceiling wall 22 (vertical direction here), and allows the cleaning liquid to flow in the vertical direction. It is possible to inject in a fan shape along the line. The nozzle hole of the horizontal nozzle 136 has a long hole shape that is long in the horizontal direction, and the cleaning liquid can be ejected in a fan shape along the horizontal direction. The nozzle hole of the lower injection nozzle 144 has a long elongated hole shape in a direction parallel to the extending direction of the second pipe 138, and the cleaning liquid can be injected downward in a fan shape. As a result, since the vertical nozzle 140 injects in a fan shape in the vertical direction, the area per unit time in which the cleaning liquid hits the inner surface of the cooler body 20 can be increased as compared with the case of injecting in the horizontal direction. can. Further, since the horizontal nozzle 136 injects water in a fan shape in the plane direction, water easily penetrates into the back side of an obstacle such as the cooler 82. Further, the bottom wall 26 is cleaned by the lower injection nozzle 144.

The rotation direction of the rotation shaft 132 of the second injection unit 130 is such that the horizontal nozzle 136 and the vertical nozzle 140 rotate in the direction from the rear to the front of the cooler 82 (hereinafter, referred to as “forward rotation”). For example, when the second injection unit 130 is rotated in the reverse direction, the cleaning liquid injected from the vertical nozzle 140 is injected from the rear toward the front end of the side wall 34 on the right side of the cooler main body 20 of the cooler 82. Water easily leaks from the inside of the main body 20. On the other hand, in the case of forward rotation, the cleaning liquid sprayed from the vertical nozzle 140 is sprayed from the rear toward the front end of the left side wall 34 where the cooler 82 is located, but the cooler 82 becomes a wall, so that the cooler main body Water leakage from inside 20 can be prevented. If the cooler case 80 is provided near the side wall 34 on the right side, the second injection unit 130 is rotated in the direction opposite to that of the present embodiment.

The door 70 can be opened and closed from the right side. As shown in FIGS. 1 and 9, the door 70 includes a plate-shaped door main body 72, a door packing 74, and a draining plate 76. The door packing 74 has a frame shape and is fixed to the rear surface of the door body 72. When the door 70 is closed, the door packing 74 is in contact with the opening edge of the cooling cabinet main body 20, thereby preventing water leakage from the inside of the cooling cabinet main body 20.

The draining plate 76 is fixed to the rear surface of the door main body 72, and has a long plate shape along the width direction (left-right direction) of the door main body 72. As shown in FIG. 2, the draining plate 76 is arranged in the upper part of the lower frame of the door packing 74, and projects toward the bottom wall 26. The angle between the protruding surface of the draining plate 76 and the rear surface of the door body 72 is approximately 120 degrees. As a result, the water (cleaning liquid) adhering to the rear surface of the door body 72 can be returned to the inside of the refrigerator, so that water is prevented from accumulating in the lower frame of the door packing 74 of the door 70 and leaking from the door 70. can.

As shown in FIG. 3, the bottom wall 26 of the cooler body 20 is inclined downward toward the center in a mortar shape. A water passage 28 is provided at the center of the bottom wall 26. As shown in FIG. 9, the water passage port 28 is provided with a cross plate 30 having a cross shape. By providing the cross plate 30, even if a large amount of water flows through the water passage port 28, it is possible to prevent the water from forming a vortex and improve the water flow efficiency. Below the cross plate 30, as shown in FIG. 13, a drain strainer 32 for removing dust contained in the water passed through the water passage port 28 is provided.

As shown in FIGS. 1 and 6, the water storage tank 150 has a box shape, and the water storage tank 150 is provided with a tank lid 166 at the upper surface opening. As shown in FIG. 15, the tank lid 166 is provided with an opening of the internal connection port 168. As shown in FIG. 3, the internal connection port 168 is arranged below the water passage port 28 of the bottom wall 26, and the internal space communicates between the internal connection port 168 and the water passage port 28. When water flows through the water passage port 28, it is stored inside the water storage tank 150 via the internal connection port 168 of the water storage tank 150.

On the front surface of the water storage tank 150, as shown in FIG. 6, a level sensor 158 that measures the water level inside the water storage tank 150, a thermistor 162 that measures the temperature inside the water storage tank 150, and a cleaning liquid stored in the water storage tank 150. A heater 160 in the tank for heating the water is provided.

As shown in FIG. 16, the bottom surface of the water storage tank 150 has a first opening 152 on the left side as a ventilation structure, a second opening 154 in the center, and a pump water supply port 156 on the right side so as to face the bottom surface. Each is provided with an opening. As shown in FIG. 1, a cylindrical overflow pipe 164 is provided so as to project upward from the opening edge of the second opening 154.

A drain valve 174 is provided below the water storage tank 150, as shown in FIGS. 1 and 5. The first opening 152 and the upstream side of the drain valve 174 are connected via a drain valve connecting pipe 172. The water flowing from the first opening 152 is prevented from flowing downstream when the drain valve 174 is open, and is prevented from flowing downstream when the drain valve 174 is closed. The downstream side of the drain valve 174 is connected to one end of the first T-shaped branch pipe 178.

The second opening 154 and the central branch end of the first T-shaped branch pipe 178 are connected via an overflow connecting pipe 176 as shown in FIGS. 1 and 5. As a result, when the water level of the water storage tank 150 exceeds a certain level while the drain valve 174 is closed, the water is drained from the overflow pipe 164, thus preventing the cleaning liquid in the water storage tank 150 from overflowing.

The other end of the first T-shaped branch pipe 178 is connected to the branch end of the second T-shaped branch pipe 180, as shown in FIGS. 1 and 5. One end of the second T-shaped branch pipe 180 is connected to the upstream side of the check valve 182 provided below. The downstream side of the check valve 182 is connected to the drain hose 184. The check valve 182 prevents the backflow of water from the downstream while flowing the water flowing from the upstream water storage tank 150 to the downstream. Further, the check valve 182 prevents the outflow of the inside air from the upstream and the inflow of the outside air from the downstream.

The other end of the second T-shaped branch pipe 180 is connected to one end of the blower blower pipe 186 as shown in FIGS. 1 and 5. The other end of the blower blower pipe 186 is connected to the downstream side of the first valve 52 provided on the upper surface of the ceiling wall 22. The upstream side of the first valve 52 is arranged downstream of the air outlet of the blower fan 50.

As shown in FIG. 6, a pump 190 is provided inside the machine room 170. The pump 190 is located below the water storage tank 150. The pump water supply port 156 of the water storage tank 150 and the input side of the pump 190 are connected via a pump connection pipe 188. Further, the output side of the pump 190 is connected to one end of the cleaning liquid pressure feed pipe 192. The cleaning liquid pressure feed pipe 192 is arranged from the output side of the pump 190 to the upper surface of the ceiling wall 22. As shown in FIG. 8, the other end of the cleaning liquid pressure feed pipe 192 is connected to one end of the third T-shaped branch pipe 194. The other end of the third T-shaped branch pipe 194 is connected to the second injection unit 130, and the branch end of the third T-shaped branch pipe 194 is connected to the first injection unit 110. When the pump 190 operates, the cleaning liquid stored in the water storage tank 150 is pressure-fed to the first injection unit 110 and the second injection unit 130 through the cleaning liquid pressure feed pipe 192.

As shown in FIG. 8, a water supply unit 24 for supplying cleaning liquid is provided on the upper surface of the ceiling wall 22. A hole for water supply (not shown) is provided below the water supply portion 24 of the ceiling wall 22, and the cleaning liquid is supplied to the inside of the cooler main body 20 from the water supply hole. The cleaning liquid is supplied from the water supply unit 24, and the cleaning liquid sprayed for cleaning flows to the water passage port 28 of the bottom wall 26 and is stored in the water storage tank 150.

The operation mode of the refrigerator 10 includes a cooling mode, a defrosting mode, a preliminary cleaning mode, a cleaning mode, a rinsing mode, a drying mode, and a sterilization mode. When each operation mode is executed, various operation controls are performed by the control means provided in the control box 60 for the cleaning operation and the control box for the cooling operation (not shown).

The cooling mode is an operation mode for cooling the inside of the refrigerator main body 20. In the cooling mode, the cooler 82 and the internal fan 100 are operated. When the internal fan 100 blows air toward the cooler 82, the cold air generated by the cooler 82 circulates inside the cooler main body 20. In the cooling mode, the first valve 52 and the second valve 40 are closed to prevent cold air from flowing to the outside. Also, the drain valve 174 is open.

By opening the drain valve 174 in the cooling mode, the water adhering to the inside of the refrigerator main body 20 due to cooling flows from the water passage port 28 to the water storage tank 150. Further, the water flowing into the water storage tank 150 passes through the check valve 182 from the first opening 152 of the water storage tank 150 and flows to the drain hose 184 to be drained. Further, due to the check valve 182, the cold air inside the cooler body 20 does not flow to the outside from the drain hose 184, and the outside air does not flow to the inside of the cooler body 20.

The defrosting mode is an operation mode for removing frost adhering to the cooler 82, and can be executed when the temperature inside the cooler body 20 satisfies a condition of a predetermined temperature or less during the operation in the cooling mode. It has become. The refrigeration cycle is stopped during operation in defrost mode. In the defrosting mode, the defrosting heater 88 is operated, and the heat of the defrosting heater 88 melts the frost adhering to the cooler 82. In the defrosting mode, the first valve 52 and the second valve 40 are closed, and the drain valve 174 is open, as in the cooling mode. The frost melted by defrosting is drained from the drain hose 184 via the water storage tank 150 and the check valve 182.

The pre-cleaning mode is a mode for cleaning the inside of the water storage tank 150, and is executed before the cleaning mode described later. By executing the pre-cleaning mode, oil stains and the like adhering to the inside of the water storage tank 150 can be removed before the cleaning mode, and oil stains and the like can be prevented from being mixed with the cleaning liquid. In the pre-cleaning mode, the second valve 40, the first valve 52, and the drain valve 174 are closed. The pre-cleaning mode is performed by the next step. In the first step, the cleaning liquid is supplied from the water supply unit 24 to the inside of the cooling cabinet main body 20, and further, water is stored in the water storage tank 150 from the water passage port 28. Water is stored in the water storage tank 150 until the water level reaches a predetermined level. In the second step, the drain valve 174 is opened to drain the cleaning liquid.

The cleaning mode is an operation mode in which the inside of the cooling cabinet main body 20 is cleaned with a cleaning liquid. In the cleaning mode, the internal fan 100 operates. At the start of operation in the cleaning mode, the first valve 52, the second valve 40, and the drain valve 174 are closed. The wash mode is performed by the next step. In the first step, the cleaning liquid is supplied from the water supply unit 24 to the inside of the cooling cabinet main body 20, and further, water is stored in the water storage tank 150 from the water passage port 28. In the second step, the stored cleaning liquid is heated to a predetermined temperature by the heater 160 in the tank. In the third step, the cleaning liquid is pumped from the pump 190 to the first injection unit 110 and the second injection unit 130. In the fourth step, the cleaning liquid is injected from the nozzles of the first injection unit 110 and the second injection unit 130. In the fifth step, the sprayed cleaning liquid is stored in the water storage tank 150 from the water passage port 28, and the process returns to the second step and is circulated. In the sixth step, after a lapse of a predetermined time, the cleaning operation is stopped, the drain valve 174 is opened, and the cleaning liquid is drained.

In the cleaning mode, if the water level of the water storage tank 150 falls below a certain level due to water leakage or the like, the cleaning operation cannot be performed normally. However, it lacks usability to immediately stop the cleaning operation in such a case. Therefore, the cleaning mode includes a first water level restoration mode for attempting to restore the water level of the water storage tank 150 and a second water level restoration mode. In the cleaning mode, either the first water level restoration mode or the second water level restoration mode is selectively executed by the user.

The first water level recovery mode is executed by the following steps. In the first step, the water level of the water storage tank 150 is monitored, and when the water level of the water storage tank 150 is equal to or lower than a predetermined threshold value (referred to as “threshold value X”), the pump 190 is stopped and the cleaning operation is temporarily stopped. In the second step, a predetermined time is waited from the temporary stop of the washing operation. As a result, the cleaning liquid inside the cooling cabinet main body 20 flows from the water passage port 28 to the water storage tank 150, and the water level of the water storage tank 150 is restored by a certain amount. In the third step, when the water level of the water storage tank 150 is equal to or higher than a predetermined threshold value (referred to as “threshold value Y”), the water supply unit 24 supplies the cleaning liquid to the water storage tank 150. Here, when the water level of the water storage tank 150 is equal to or less than the threshold value Y, the washing operation is stopped. In the fourth step, the pump 190 is operated and the cleaning operation is restarted.

The second water level recovery mode is executed by the following steps. In the first step, the water level of the water storage tank 150 is monitored, and when the water level of the water storage tank 150 is equal to or lower than a predetermined threshold value (referred to as “threshold value X”), the pump 190 is stopped and the cleaning operation is temporarily stopped. In the second step, the cleaning liquid is supplied from the water supply unit 24 to the water storage tank 150. In the third step, the pump 190 is operated and the cleaning operation is restarted. In the fourth step, after the washing operation is restarted, if the washing operation is stopped again by the first step, the number of times is counted. In the fifth step, when the number of times counted in the fourth step is equal to or more than a predetermined number of times, the washing operation is stopped.

The rinsing mode is executed after the cleaning mode, and is an operation mode in which the cleaning liquid adhering to the inside of the cooling cabinet main body 20 is washed away with water by the cleaning mode. At the start of operation in the rinse mode, the first valve 52, the second valve 40, and the drain valve 174 are closed. Rinse mode is performed by the next step. In the first step, water is supplied from the water supply unit 24 to the inside of the cooler main body 20, and the water reaching the bottom wall 26 of the cooler main body 20 is passed from the water passage port 28 to the water storage tank 150 to be passed to the water storage tank 150. To store water. In the second step, water is pumped from the pump 190 to the first injection unit 110 and the second injection unit 130. In the third step, water is injected from the nozzles of the first injection unit 110 and the second injection unit 130. In the fourth step, the jetted water is stored in the water storage tank 150 from the water passage port 28, and the process returns to the second step and the circulation operation is performed. In the fifth step, the drain valve 174 is opened to drain water. In the sixth step, the first step to the fifth step are executed again, and the second rinse is performed.

The drying mode is an operation mode for drying the inside of the cooler main body 20 and the inside of the water storage tank 150, and is executed after the rinsing mode. In the drying mode, the internal fan 100, the blower fan 50, and the drying heater 86 are operating. In the dry mode, the first valve 52, the second valve 40, and the drain valve 174 are open.

In the drying mode, the air blown from the blower fan 50 is ventilated into the water storage tank 150 from the first opening 152 and the second opening 154 via the blower blower pipe 186. The air blown from the blower fan 50 ventilated inside the water storage tank 150 is ventilated into the inside of the cooling cabinet main body 20 from the water passage port 28. Inside the cooler body 20, the internal fan 100 is operating, and the inside air of the cooler body 20 flows downstream of the internal fan 100 and is ventilated to the outside through the vent 36. In this way, the air blown from the blower fan 50 is ventilated to the cooler body 20 via the water storage tank 150, so that the inside of the water storage tank 150 and the inside of the cooler body 20 are dried.

The sterilization mode is an operation mode in which the inside of the cooler body 20 is raised to a sterilization temperature (generally 80 degrees) to sterilize the inside of the cooler body 20, and is executed after the drying mode. In the sterilization mode, the first valve 52 and the second valve 40 are closed, and the drain valve 174 is open. Further, in the sterilization mode, both the internal fan 100 and the drying heater 86 and the defrosting heater 88 are operating. In this way, in order to operate both the drying heater 86 and the defrosting heater 88 with both the first valve 52 and the second valve 40 closed, the temperature inside the cooler body 20 is set to the sterilization temperature. Can be raised to. Further, in the drying mode executed earlier, the sterilization mode is executed in a state where the temperature inside the cooler main body 20 is raised by the drying heater 86, so that the sterilization mode is executed without executing the drying mode. Compared with the case of executing the above, the time and power associated with the temperature rise are reduced.

According to this embodiment, the following actions and effects are exhibited.
The cooler 10 is a cooler 10 that can be operated in the sterilization mode, and cools the box-shaped cooler main body 20 and the cold air generated by the cooler 82 provided inside the cooler main body 20. A fan 100 inside the refrigerator that circulates inside the main body 20, a heater 84 that raises the temperature inside the cooler main body 20, and a first that can block or open the ventilation of outside air to the inside of the cooler main body 20. The valve 52, the vent 36 which is provided so as to open inside the cooling cabinet body 20 and ventilates the inside air from the inside of the cooling cabinet body 20 to the outside, and the vent 36 which blocks or opens the ventilation of the inside air from the vent 36 to the outside. The second valve 40 is provided, and in the disinfection mode, the heater 84 and the internal fan 100 are operating with the first valve 52 and the second valve 40 closed.
According to the present embodiment, when the temperature inside the cooler body 20 is raised by the heater 84, the heat inside the cooler body 20 escapes to the outside by closing the first valve 52 and the second valve 40. Can be prevented. As a result, the temperature inside the cooler body 20 can be raised to the sterilization temperature, and sterilization can be performed.

Further, a blower fan 50 provided outside the cooler body 20, a water storage tank 150 provided outside the cooler body 20, and a water storage tank 150 provided by opening through the bottom wall 24 of the cooler body 20. The water passage port 28 is provided with a water passage port 28 that communicates with the inside of the cooling chamber main body 20 and allows water inside the cooling cabinet body 20 to flow to the water storage tank 150. The structure can be configured to allow ventilation to the cooler body 20.
Since the air blown from the blower fan 50 flows into the cooler body 20 through the inside of the water storage tank 150 and is ventilated, the inside of the cooler body 20 and the inside of the water storage tank 150 can be dried.

Further, the vent 36 is provided downstream of the internal fan 100.
Since the vent 36 that opens inside the cooler body 20 is arranged downstream of the internal fan 100, in the drying mode for drying the inside of the cooler body 20, the air cooler body is blown by the internal fan 100. The ventilation efficiency of the inside air of 20 to the outside is increased, and the drying efficiency can be improved.

Further, the heater 84 is a defrosting mode for removing frost adhering to the cooler 82, and is a defrosting heater 88 that operates with the first valve 52 and the second valve 40 closed, and the cooler main body 20. In the drying mode for drying the inside of the above, a drying heater 86 that operates with the first valve 52 and the second valve 40 open is separately provided, and in the disinfection mode, the defrosting heater 88 and drying are provided. Both of the heaters 86 are operated.
By operating both the defrosting heater 88 and the drying heater 86, the time required for raising the temperature inside the cooler body 20 can be shortened as compared with the case where either one is operated to raise the temperature. Can be done.

<Other embodiments>
The present invention is not limited to the embodiments described in the above description and drawings, and for example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, the cooler case 80 in which the cooler 82 is housed is arranged near the side wall 34 on the left side, but the position of the cooler case 80 is not limited to this. For example, it may be arranged on the right side wall side. In that case, the rotation direction of the second injection unit 130 is opposite to that of the present embodiment.
(2) In the above embodiment, two internal fans 100 are provided, but the number of internal fans 100 may be one or three or more.
(3) In the above embodiment, the first injection unit 110 has a shape in which a plurality of elongated tubes are bent and bent, and the upper injection unit 112, the upper connection unit 114, the middle injection unit 116, the lower connection unit 118, and the lower injection unit Although the configuration is composed of 120, the shape of the first injection portion 110 does not matter as long as the first nozzle 122 and the second nozzle 124 are arranged outside the plan view of the internal fan 100. For example, the first injection unit may have a vertically long rod shape, and one first injection unit 110 may be arranged on each of the left and right sides of the internal fan 100.
(4) In the present embodiment, the air blown from the blower fan 50 is configured to flow from the first opening 152 and the second opening 154 into the water storage tank 150, but the water storage tank 150 has a ventilation hole (ventilation in the tank). A mouth) may be provided separately.

10 ... Cooler 20 ... Cooler body 26 ... Bottom wall 28 ... Water flow port 36 ... Ventilation port 40 ... Second valve 50 ... Blower fan 52 ... First valve 82 ... Cooler 84 ... Heater 86 ... Drying heater 88 ... Excluded Frost heater 100 ... Internal fan 150 ... Water storage tank

Claims (4)

It is a cooler that can be operated in sterilization mode.
Box-shaped cooler body and
An internal fan that circulates the cold air generated by the cooler provided inside the cooler body inside the cooler body, and
A heater that raises the temperature inside the cooler body and
A first valve that can block or open the ventilation of outside air to the inside of the cooling cabinet body,
A vent provided with an opening inside the cooler body to ventilate the inside air from the inside of the cooler body to the outside.
A second valve that can block or open the ventilation of the inside air from the vent to the outside is provided.
In the sterilization mode, the cooling chamber in which the heater and the internal fan operate in a state where the first valve and the second valve are closed. A blower fan provided outside the cooler body and
A water storage tank provided outside the cooler body and
It is provided with an opening in the bottom wall of the cooling cabinet body, and is provided with a water passage port that communicates with the inside of the water storage tank and allows water inside the cooling cabinet body to flow through the water storage tank.
The cooler according to claim 1, wherein the water passage port is configured to allow air blown from the blower fan to be ventilated to the cooler body via the water storage tank. The cooling chamber according to claim 1 or 2, wherein the vent is provided downstream of the internal fan. The heater is
A defrosting heater that operates in a defrosting mode for removing frost adhering to the cooler with the first valve and the second valve closed.
A drying mode for drying the inside of the cooling chamber main body, the drying heater operating with the first valve and the second valve open, is separately provided.
The cooler according to any one of claims 1 to 3, wherein in the sterilization mode, both the defrost heater and the drying heater are operated.

Images