JP4093257B2 - dishwasher - Google Patents

Description

  The present invention relates to a dishwasher for cleaning and drying dishes and the like.

  Conventionally, this type of dishwasher has been configured as shown in FIG. Hereinafter, the configuration will be described.

  In FIG. 2, reference numeral 1 denotes a dishwasher main body accommodated in the system kitchen. A washing tub 2 provided in the dishwasher main body 1 has an opening 3 on the upper side and a dish basket 5 for accommodating the dishes 4. It is arranged. A cleaning nozzle 6 is rotatably provided below the tableware basket 5, and the cleaning water accumulated in the cleaning tank 2 is circulated by the pump 7 and sprayed from the cleaning nozzle 6 to clean the tableware 4.

  Further, an exhaust port 9 is provided at the upper part of the front panel 8 provided in front of the cleaning tank 2, and the air in the cleaning tank 2 is exhausted from the exhaust port 9 to the outside by the blower means 10. 4 is dried.

A first rail 11 is fixed to the side of the washing tank 2, and the first rail 11 is supported by a second rail 12 fixed to the dishwasher body 1 so as to be movable in parallel in the front-rear direction. . When the tableware 4 is put into and out of the washing tub 2, the handle 13 provided on the front panel 8 is grasped, the washing tub 2 is drawn forward, and the tableware 4 is accommodated from the upper opening 3. Next, when the washing tub 2 is pushed back into the dishwasher main body 1 and the operation is started, the washing water is heated by the heater 14 disposed at the bottom of the washing tub 2, and the washing water is sent to the washing nozzle 6 for washing. A cleaning process is performed in which the nozzle 6 is sprayed toward the tableware 4 to remove dirt from the tableware 4. Then, after rinsing tableware 4, a drying process is performed and operation is ended (for example, refer to patent documents 1).
JP 2001-46301 A

  However, in the configuration of such a conventional dishwasher, it is necessary to arrange the exhaust port 9 in front of the washing tub 2 in order to discharge the air in the washing tub 2 to the outside while being housed in the system kitchen. There is. Further, the air in the cleaning tank 2 discharged from the exhaust port 9 is substantially the same as the temperature in the cleaning tank 2 (about 80 ° C.), and there is a problem that there is a risk of burns in some cases.

  In addition, air that contains a lot of moisture is discharged at the initial stage of the drying process, so the temperature of the body is high and it tends to cause burns, and the temperature difference from the outside air causes condensation outside the machine. Had.

  Further, in the cleaning / rinsing process, when the cleaning water temperature is high (about 50 ° C.), the cleaning water vapor leaks from the exhaust port 9 and condenses on the front panel 8 in which the exhaust port 9 is disposed. It was.

  In addition, when the outside air is mixed in the exhaust port 9, the amount of air in the cleaning tank 2 discharged by the blowing means 10 and the amount of outside air to be mixed cannot be adjusted. In order to lower the temperature of the air having a large amount of air, a large amount of outside air is required with respect to the air in the washing tank 2, and the amount of outside air is increased or the amount of air discharged in the washing tank 2 is reduced. In order to increase the amount of outside air more than necessary, it is necessary to increase the capacity of the air blowing means 10, and as a result, the capacity becomes large, and it is very wasteful to store as much tableware 4 as possible in a limited space. Met.

  In addition, reducing the amount of air discharged from the cleaning tank 2 has a problem that it takes time to discharge the water in the cleaning tank 2, resulting in a longer drying process.

  The present invention solves the above-described conventional problems, and without reducing the drying performance of the tableware, while reducing the temperature of the air in the cleaning tank easily discharged from the exhaust port, lowering the humidity and heating An object of the present invention is to provide a dishwasher that can prevent air burns and condensation outside the machine.

In order to solve the above-described conventional problems, a dishwasher according to the present invention includes a washing tank for storing dishes, a washing nozzle provided at an inner bottom portion of the washing tank for washing the dishes, and the inside of the washing tank. First air blowing means for discharging the air through the exhaust port to the outside of the apparatus, temperature detecting means for detecting the temperature in the cleaning tank, control means for sequentially controlling each step of cleaning, rinsing and drying, and the exhaust and a second blowing means to be mixed outside air into the air discharged from the mouth, said control means is for controlling both the said first blowing means and the second blowing means, for example, a temperature sensing When the temperature in the cleaning tank detected by the means becomes equal to or higher than a predetermined temperature, if the second blowing means is operated , the inside of the cleaning tank discharged from the exhaust port is not degraded without reducing the drying performance. Reduce air temperature and humidity It is possible gel, it is possible to reliably prevent condensation in the burns and the outside by the heated air.

  The dishwasher of the present invention reduces the temperature of the air in the washing tank that is easily discharged from the exhaust port without lowering the drying performance of the tableware, and reduces the humidity, thereby causing burns caused by heated air and the outside of the machine Condensation can be prevented.

1st invention is a washing tank which stores tableware, a washing nozzle provided in the bottom of the washing tank for washing the tableware, and exhausts air in the washing tank to the outside through an exhaust port First air blowing means, temperature detecting means for detecting the temperature in the cleaning tank, control means for sequentially controlling each of the cleaning, rinsing and drying steps, and outside air mixed into the air discharged from the exhaust port And the control means controls both the first air blowing means and the second air blowing means, and the temperature in the cleaning tank detected by the temperature detecting means is a predetermined temperature. When it becomes above, the said 2nd ventilation means is operated , for example, at the initial stage of a drying process, the operation time of the 1st ventilation means is shortened, and the operation time of the 2nd ventilation means is lengthened. If it is, without reducing the drying performance, The temperature of the air in the cleaning tank is discharged from the outlet port to lower, and it is possible to lower the humidity, it is possible to surely prevent dew condensation on the burns and the outside by the heated air.

Further, it is possible to prevent the vapor of the cleaning water that has become high in the cleaning / rinsing process from leaking to the outside and condensing on the front panel.

In the second invention, in particular, the control means of the first invention makes the air volume of the first air blowing means smaller than that of the second air blowing means at the initial stage of the drying process, The amount of air exhausted is reduced, the temperature of the air exhausted outside the machine is lowered, and when the temperature in the washing tank falls, it can be returned to the conventional exhaust amount, so the drying performance of dishes Can be secured.

According to a third aspect of the present invention, there is provided a cleaning tank for storing tableware, a cleaning nozzle provided at the inner bottom of the cleaning tank for cleaning the tableware, and exhausting the air in the cleaning tank to the outside through an exhaust port. 1 air blowing means, temperature detecting means for detecting the temperature in the cleaning tank, control means for sequentially controlling each of the cleaning, rinsing and drying steps, and mixing the outside air into the air discharged from the exhaust port And a second air blowing means, wherein the control means controls both the first air blowing means and the second air blowing means in the drying step, and detects the temperature in the cleaning tank detected by the temperature detecting means. It intended to increase the air volume of the first air blowing device with the decrease, drying performance without reducing, to lower the temperature of the air in the cleaning tank to be discharged from the exhaust port, and can be lowered humidity So burned by heated air It is possible to reliably prevent condensation to the outside, the drying process early, to reduce the exhaust amount of the air at a higher temperature, thereby lowering the exhaust gas temperature to the outside, down the temperature in the washing tank Accordingly, the predetermined drying performance of the dishes can be ensured by increasing the displacement.

According to a fourth aspect of the present invention, there is provided a cleaning tank for storing tableware, a cleaning nozzle provided at the inner bottom of the cleaning tank for cleaning the tableware, and exhausting air in the cleaning tank to the outside through an exhaust port. 1 air blowing means, temperature detecting means for detecting the temperature in the cleaning tank, control means for sequentially controlling each of the cleaning, rinsing and drying steps, and mixing the outside air into the air discharged from the exhaust port And a second air blowing means, wherein the control means controls both the first air blowing means and the second air blowing means in the drying step, and detects the temperature in the cleaning tank detected by the temperature detecting means. intended to reduce the air volume of the second blowing means with the decrease, drying performance without reducing, to lower the temperature of the air in the cleaning tank to be discharged from the exhaust port, and can be lowered humidity So burn with heated air It is possible to prevent or condensation to the outside reliably, the drying process early, when high temperatures, along with increasing the airflow from the outside of the machine to lower the exhaust gas temperature, the temperature of the cleaning bath is lowered In the state, air can be prevented from being exhausted from the opening more than necessary.

In the fifth invention, in particular, the washing tub according to any one of the first to fourth inventions is provided so as to be freely drawn out from the dishwasher body, and is located in front of the washing tub of the dishwasher body housed in the system kitchen. The temperature of the air discharged from the machine to the outside of the machine can be lowered and the humidity can be lowered, and condensation outside the machine can be reliably prevented, ensuring the safety of the user and feeling of use. Can be improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by this embodiment.

(Embodiment 1)
FIG. 1 is a cross-sectional view of the dishwasher according to the first embodiment of the present invention.

  In FIG. 1, reference numeral 15 denotes a dishwasher main body accommodated in the system kitchen. A washing tub 16 provided inside the dishwasher main body 15 has an opening 17 on the upper side, and a tableware basket 19 for accommodating tableware 18. Is arranged. A cleaning nozzle 20 that jets cleaning water is rotatably provided below the table basket 19. A pump 21 circulates the cleaning water stored in the cleaning tank 16 in the cleaning tank 16 while sending the cleaning water to the cleaning nozzle 20 and ejecting the cleaning water from the cleaning nozzle 20. In addition, a heater 23 for heating the cleaning water and the air blown by the first blowing means 22 is disposed at the bottom.

  The exhaust port 24 is disposed between the front panel 25 provided in front of the cleaning tank 16 and the cleaning tank 16, and the air in the cleaning tank 16 is exhausted from the exhaust port 24 by the operation of the first blowing means 22. It is configured to be. Reference numeral 26 denotes an opening provided in the front panel 25, and the exhaust port 24 and the opening 26 communicate with each other through an exhaust path 27.

  The second blower means 28 has substantially the same capacity as the first blower means 22 and is configured to communicate outside air to a blower path 29 disposed behind the front panel 25 and blow the air to the opening 26. The air passage 29 is arranged so as to be in surface contact with the exhaust passage 27 in the front-rear direction, and is configured so that the air discharged from the cleaning tank 16 and the outside air are mixed in the opening 26.

  A temperature detection means 30 for detecting the temperature of the cleaning water or the cleaning tank 16 is provided at the lower part of the cleaning tank 16, and the control means 31 for sequentially controlling the cleaning, rinsing and drying processes is a signal from the temperature detection means 30. Is configured to control the operating time of the first air blowing means 22 and the second air blowing means 28, and the second when the temperature detecting means 30 detects a certain temperature (for example, 50 ° C.) in the cleaning / rinsing process. When the operation of the air blowing means 28 is started and the drying process is started, the second air blowing means 28 is operated, and the first air blowing means 22 is intermittently operated for several minutes and then continuously operated for a certain time. Later, the second air blowing means 28 is intermittently operated.

  Moreover, the 1st rail 32 is fixed to the both sides | surfaces of the washing tank 16, and the 1st rail 32 is supported by the 2nd rail 33 fixed to the dishwasher main body 15 so that a parallel movement is possible in the front-back direction. Yes. When the tableware 18 is put in and out, the handle 34 provided on the front panel 25 is grasped, the washing tank 16 is pulled forward, and the tableware 18 is accommodated from the upper opening 17.

  The operation and action of the dishwasher in the above configuration will be described below.

  First, the user grasps the handle 34 provided on the front panel 25 and pulls out the washing tub 16 from the dishwasher main body 15 to set the dirty dishes 18 in the dish basket 19 disposed in the washing tub 16. Next, when the washing tub 16 is returned to the dishwasher main body 15 and the operation is started, the washing water is heated by the heater 23 disposed on the inner bottom of the washing tub 16, and the heated washing water is supplied from the washing nozzle 20 to the tableware. A cleaning process is performed to spray the dishes 18 and remove the stains on the dishes 18. Then, after rinsing several times, after rinsing while heating to about 80 ° C. with the heater 23 and performing a heating rinsing step, the process proceeds to a drying step of drying the tableware 18 and the inside of the washing tub 16.

  In the drying process, while the air in the cleaning tank 16 is heated by the heater 23, the first blowing unit 22 contains a large amount of water and high-temperature heated air is discharged from the exhaust port 24, and is discharged from the exhaust port 24. The air merges with the outside air sent by the second air blowing means 28 through the opening 26, and the temperature and humidity are reduced, and the air is discharged to the outside. When the drying process is finished, all the operations of the dishwasher main body 15 are finished.

  In the initial stage of the drying process, heated air containing a large amount of moisture is discharged from the exhaust port 24. Here, the second blower means 28 is operated and the first blower means 22 is intermittently operated for several minutes. Thus, since the air volume of the first air blowing means 22 can be easily reduced, the air volume after the intermittent operation can continue the drying process as before, and the drying performance of the tableware 18 is lowered. In addition, the temperature of the air in the cleaning tank 16 that is easily discharged from the exhaust port 24 is lowered, and the moisture in the exhausted air is reduced to prevent burns and dew condensation outside the machine due to heated air. Can do.

  Further, when the cleaning water becomes hot, such as a heating rinse process, the cleaning water vapor leaks from the exhaust port 24, but the temperature detection means 30 causes the cleaning tank 16 to reach a certain temperature (for example, 50 ° C.). When the second air blowing means 28 is operated, the moisture in the exhausted air is reduced, and condensation on the front panel 25 can be prevented.

  Further, by increasing the air volume of the first air blowing means 22 as the temperature in the cleaning tank 16 decreases during the drying process, the amount of high-temperature air exhausted at the initial stage of the drying process is reduced, and the outside of the apparatus is removed. As the temperature in the cleaning tank 16 decreases, the drying performance of the dishes 18 can be ensured by returning to the conventional exhaust amount.

  Further, if the air volume of the second blower means 28 is reduced in accordance with the temperature drop in the cleaning tank 16 during the drying process, the air volume from the outside is increased when the temperature in the initial stage of the drying process is high. As a result, the exhaust temperature can be lowered and the air can be prevented from being exhausted from the opening 26 more than necessary when the temperature in the cleaning tank 16 is lowered.

  As described above, according to the present embodiment, the heating air is reduced by lowering the humidity while lowering the temperature of the air in the cleaning tank 16 easily discharged from the exhaust port without deteriorating the drying performance of the tableware. Can prevent burns and condensation outside the machine.

  Further, when the temperature in the cleaning tank 16 reaches a certain temperature, the second blowing means 28 is operated, so that cleaning water vapor that becomes high in the cleaning and rinsing process leaks from the exhaust port 24, Condensation on the panel 25 can be prevented.

  Also, if the air volume of the first air blowing means 22 is less than that of the second air blowing means 28 at the initial stage of the drying process, the amount of high-temperature air exhausted at the initial stage of the drying process is reduced and exhausted outside the apparatus. When the temperature of the air is lowered and the temperature in the cleaning tank 16 is lowered, the drying performance of the dishes 18 can be ensured by returning to the conventional displacement.

  Further, during the drying process, by increasing the air volume of the first blower means 22 as the temperature in the cleaning tank 16 decreases, the amount of high-temperature air exhausted at the initial stage of the drying process is reduced and exhausted to the outside of the machine. By reducing the temperature and returning to the conventional displacement as the temperature in the cleaning tank 16 decreases, it is possible to ensure the drying performance of the dishes.

  Further, during the drying process, by reducing the air volume of the second blower means 28 as the temperature in the cleaning tank 16 decreases, the air volume from the outside of the machine is increased when the temperature in the initial stage of the drying process is high, thereby increasing the exhaust temperature. In addition, it is possible to prevent air from being exhausted from the opening 26 more than necessary when the temperature in the cleaning tank 16 is lowered.

  Further, at the time of the drying process, a high temperature at the initial stage of the drying process is obtained by increasing the air volume of the first air blowing means 22 while decreasing the air volume of the first air blowing means 22 as the temperature in the cleaning tank 16 decreases. In the state where the exhaust temperature is further lowered and the temperature in the cleaning tank 16 is lowered by increasing the air volume of the outside air while reducing the amount of exhaust air, the exhaust volume is made the same as the conventional air volume, and the tableware 18 It is possible to ensure the drying performance and prevent air from being exhausted from the opening 26 more than necessary.

  Further, since the washing tub 16 is provided so as to be freely drawn out from the dishwasher main body 15, the temperature of the air discharged from the front of the washing tub 16 of the dishwasher main body 15 accommodated in the system kitchen is lowered. In addition, the humidity can be lowered and condensation outside the apparatus can be reliably prevented, so that the safety of the user can be ensured and the feeling of use can be improved.

  In the above embodiment, the air volume of the first air blowing means 22 and the second air blowing means 28 is changed between continuous operation and intermittent operation, that is, depending on the operation time. The air volume may be changed by changing the rotation speed.

  As described above, the dishwasher according to the present invention is burned by heated air by lowering the humidity while lowering the temperature of the air in the washing tank discharged outside without lowering the drying performance of the tableware. It can prevent condensation outside the machine and can be widely applied to household and commercial dishwashers.

Side sectional view of the dishwasher according to Embodiment 1 of the present invention. Side view of a conventional dishwasher

Explanation of symbols

DESCRIPTION OF SYMBOLS 16 Cleaning tank 18 Tableware 20 Washing nozzle 22 1st ventilation means 24 Exhaust port 26 Opening 28 2nd ventilation means 30 Temperature detection means 31 Control means

Claims (5)

A cleaning tank for storing tableware, a cleaning nozzle provided at the inner bottom of the cleaning tank for cleaning the tableware, and a first blowing means for discharging the air in the cleaning tank to the outside through an exhaust port; , Temperature detecting means for detecting the temperature in the cleaning tank, control means for sequentially controlling each step of cleaning, rinsing and drying, and second air blowing means for mixing outside air into the air discharged from the exhaust port The control means controls both the first air blowing means and the second air blowing means, and when the temperature in the cleaning tank detected by the temperature detecting means becomes equal to or higher than a predetermined temperature, A dishwasher for operating the second blowing means . Control means at the beginning of the drying process, the dishwasher according to claim 1 Symbol placement be less than that of the air volume of the first blowing means second blowing means. A cleaning tank for storing tableware, a cleaning nozzle provided at the inner bottom of the cleaning tank for cleaning the tableware, and a first blowing means for discharging the air in the cleaning tank to the outside through an exhaust port; Temperature detecting means for detecting the temperature in the cleaning tank, control means for sequentially controlling each of the steps of cleaning, rinsing and drying; second air blowing means for mixing outside air into the air discharged from the exhaust port; wherein the control means, in the drying step, the first both controls and the second blowing means the blowing means, said with a decrease in the temperature in the cleaning tank has been detected by said temperature detecting means first tableware washing machine you a lot of air volume of 1 of the blower means. A cleaning tank for storing tableware, a cleaning nozzle provided at the inner bottom of the cleaning tank for cleaning the tableware, and a first blowing means for discharging the air in the cleaning tank to the outside through an exhaust port; Temperature detecting means for detecting the temperature in the cleaning tank, control means for sequentially controlling each of the steps of cleaning, rinsing and drying; second air blowing means for mixing outside air into the air discharged from the exhaust port; wherein the control means, in the drying step, the first both controls and the second blowing means the blowing means, said with a decrease in the temperature in the cleaning tank has been detected by said temperature detecting means first tableware washing machine you reduce the air flow rate of 2 of the blower means. The dishwasher according to any one of claims 1 to 4 , wherein the washing tank is provided so as to be freely drawn out from the dishwasher body.