JP2006158888A - Dish washer, dish dryer, dish washer dryer, and operating method, program, and recording medium thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dish washer with superior energy saving performance. <P>SOLUTION: This dish washer comprises a dish storage part 1 on which dishes 2 are laid, an air duct 3 to connect an air outlet 21 for supplying air into the dish storage part 1 and a discharging port 22 to discharge air from the inside of the dish storage part 1, a cooling part 5 set on the air duct 3 to cool down the discharged air, a washing means 16 to wash the dishes 2, a water heating part 8 to heat water to be supplied to the washing means 16, and a heat pump cycle having a compressor 9, a condenser 8, an expansion means 10, and an evaporator 5 and set on coolant piping 11 to flow the coolant. The cooling part 5 is composed the evaporator, and the water heating part 8 is composed of the condenser. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a dishwasher, a dish dryer, a dishwasher, and a method of operating the same, which have high energy saving performance, washing and drying performance and are excellent in hygiene.

  In recent years, in the field of dishwashers, from the viewpoint of saving energy and reducing running costs, it has been proposed to raise the temperature of water for rinsing and rinsing using waste heat generated during rinsing and rinsing. ing. For example, in an evaporator of a heat pump that generates hot water for washing or rinsing, heat exchange between the hot water after washing or rinsing and the refrigerant is performed to improve the efficiency of the heat pump (for example, Patent Document 1). reference).

  Moreover, what reduces the energy consumption at the time of drying is also proposed. For example, the air in the tableware storage part is circulated in the order of the evaporator and condenser of the heat pump, returned to the tableware storage part again, and heated while removing water vapor in the air, thereby reducing the drying time and energy consumption. (See, for example, Patent Document 2).

Furthermore, in order to clean all the tableware stored in the tableware storage section, the nozzle that jets the cleaning water is rotated. However, a device that reduces the energy required for this rotation has also been proposed. This includes, for example, rotation using a reaction force of water ejected from a nozzle (see, for example, Patent Document 3).
Japanese Patent Laid-Open No. 10-80391 Japanese Patent Application Laid-Open No. 62-141491 JP-A-5-115415

  However, in the dishwasher of Patent Document 1, dirt components adhering to the tableware adhere to the evaporator of the heat pump and heat exchange performance is reduced, so that sufficient energy saving performance cannot be realized. In the worst case, the evaporator is clogged.

  Moreover, in the dishwasher of patent document 2, since the tableware after drying is left warm, it is in a warm state when taking out the tableware, and there is a possibility of breeding bacteria, etc. There was a problem of receiving the impression that was not hygienic. Furthermore, when the refrigerant is decompressed in the heat pump circuit, there is a problem that the energy of the refrigerant is dissipated as turbulent energy.

  Furthermore, in the dishwasher of patent document 3, since a part of kinetic energy which water has is utilized as a rotational energy of a nozzle, the collision force of the water with respect to tableware becomes weak, and the kind of dirt component adhering to tableware In some cases, sufficient cleaning performance may not be obtained.

  The objective of this invention is providing the dishwasher which can implement | achieve higher energy saving property in consideration of the said conventional subject.

  Another object of the present invention is to provide a dish dryer and a dishwasher that do not give the user the impression that it is not hygienic.

  Another object of the present invention is to provide a dishwasher capable of obtaining higher cleaning performance.

In order to achieve the above-described object, the first present invention includes a tableware container for placing tableware,
An air passage connecting a blow-out port for sending air into the tableware storage unit and a discharge port for discharging air from the tableware storage unit;
A cooling section provided in the air passage to cool the discharged air;
Cleaning means for cleaning the tableware;
A water heating section for heating water supplied to the cleaning means;
A heat pump cycle having a compressor, a condenser, an expansion means, and an evaporator installed on a refrigerant pipe through which the refrigerant flows;
The cooling unit is composed of the evaporator,
The water heating unit is a dishwasher configured with the condenser.

The second aspect of the present invention is
A tableware container for placing tableware;
An air passage connecting an outlet for sending air into the tableware container and an outlet for discharging air from the tableware container;
A cooling unit provided in the air passage to cool the discharged air;
An air heating unit provided in the air passage for heating the air cooled by the cooling unit;
Switching between the compressor, the first condenser, the second condenser, the expansion means, and the evaporator, and the first condenser and the second condenser, which are installed on the refrigerant pipe through which the refrigerant flows. A heat pump cycle having a first three-way valve installed on the refrigerant pipe to perform
Control means for controlling the first three-way valve so as to operate the second condenser after the first condenser is operated for a predetermined time during drying;
The cooling unit is composed of the evaporator,
The air heating unit is configured by the first condenser,
The second condenser is a tableware dryer installed in a place other than the air passage.

The third aspect of the present invention
A tableware dryer of the second invention;
Cleaning means for cleaning the tableware;
A water supply path for supplying water to the cleaning means;
A water heating section installed in the water supply path, for heating water supplied to the cleaning means, and a water discharge path branched from the water supply path between the cleaning means and the water heating section;
A second three-way valve installed at the branch point;
The water heating unit is composed of the second condenser,
The control means is a dishwasher that controls the second three-way valve so that water is supplied to the water discharge path when the first three-way valve is controlled.

The fourth aspect of the present invention is
A tableware container for placing tableware;
A nozzle for cleaning the tableware installed in the tableware container;
A heat pump having a compressor, a condenser, an expander, and an evaporator installed on a refrigerant pipe through which the refrigerant flows;
It is a dishwasher provided with the energy transmission means for utilizing the rotational energy which generate | occur | produces in the said expander for the washing | cleaning of the said tableware.

The fifth aspect of the present invention is
The energy transmission means is the dishwasher according to the fourth aspect of the present invention, which is a means for connecting the rotating shaft of the nozzle and the rotating shaft of the expander.

The sixth aspect of the present invention
The rotating shaft of the nozzle is the dishwasher according to the fifth aspect of the present invention, which is also used as the rotating shaft of the expander.

The seventh aspect of the present invention
The energy transmission means is a dishwasher according to a fourth aspect of the present invention, including power generation means for generating electric power using rotational energy generated in the expander.

Further, the eighth aspect of the present invention is
The energy transmission means further includes a driving means for rotating the nozzle,
In the dishwasher according to the seventh aspect of the present invention, the electric power generated by the power generation means is supplied to the drive means.

The ninth aspect of the present invention provides
A pressure increasing means for increasing the pressure of water ejected from the nozzle;
In the dishwasher of the seventh aspect of the present invention, the electric power generated by the power generation means is supplied to the boosting means.

The tenth aspect of the present invention is
In the dishwasher of the first or fourth aspect of the present invention, the refrigerant is carbon dioxide.

The eleventh aspect of the present invention is
The said refrigerant | coolant is a tableware dryer of 2nd this invention which is a carbon dioxide.

The twelfth aspect of the present invention is
A method for operating a dishwasher using the dishwasher of the third invention,
A first drying step of operating the first condenser for a predetermined time;
After the first drying step, the first three-way valve is operated so as to operate the second condenser, and the second three-way valve is controlled so that water is supplied to the water discharge path side. It is the operation method of a dishwasher provided with the 2nd drying process to perform.

The thirteenth aspect of the present invention is
In the operation method of the dishwasher of the twelfth aspect of the present invention, a first drying step for operating the first condenser for a predetermined time, and the second condenser is operated after the first drying step. A program for causing a computer to execute a second drying step for controlling the first three-way valve and the second three-way valve so that water is supplied to the water discharge path side.

The fourteenth aspect of the present invention is
A recording medium on which a program of the thirteenth aspect of the present invention is recorded, which can be processed by a computer.

  ADVANTAGE OF THE INVENTION According to this invention, the dishwasher which can implement | achieve higher energy saving can be provided.

  Further, according to another aspect of the present invention, it is possible to provide a dish dryer and a dishwasher that do not give the user the impression that it is not hygienic.

  Moreover, according to another this invention, the dishwasher which can obtain higher washing | cleaning performance can be provided.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, detailed descriptions of known means that have been widely employed are omitted.

(Embodiment 1)
FIG. 1 shows an embodiment of a dishwasher according to the present invention, an embodiment of the dishwasher according to the present invention, and an embodiment of the dishwasher according to the present invention. FIG. FIG. 2 is a cross-sectional view taken along a line AA ′ in FIG. FIG. 3 is a cross-sectional view taken along the line BB ′ in FIG.

  As shown in FIG.1 and FIG.2, the dishwasher of this Embodiment 1 is arrange | positioned under the main body 20, the tableware storage part 1 for mounting and washing | cleaning tableware, and the tableware storage part 1 below. And a lower space 24. The tableware container 1 and the lower space 24 are separated by a housing 25.

  In addition, a nozzle 16 that injects water for washing the tableware 2 placed on the tableware storage unit 1 is installed in the casing 25 at the bottom of the tableware storage unit 1. A water supply pipe 26 for supplying water to the nozzle 16 is installed in the lower space 24. The water supply pipe 26 is provided with a booster 13 for increasing the pressure of the supplied water, and a drainage channel 27 branched from between the booster 13 and the nozzle 16 is installed. A second three-way valve 15 is installed at a branch point of the water supply pipe 26 to the drainage channel 27. The drainage channel 27 is also arranged in the lower space 24.

  In addition, above the inner side surface of the tableware storage unit 1, a discharge port 21 for discharging the air in the tableware storage unit 1 and a blowout port 22 for sending air into the tableware storage unit 1 are provided. A blower passage 3 connecting the discharge port 21 and the blowout port 22 is provided, and both the discharge port 21 and the blowout port 22 are composed of a plurality of openings formed in the blower passage 3.

  Here, FIG. 4 is a configuration perspective view showing the relationship between the main body 20, the tableware storage portion 1, and the air passage 3 of the dishwasher in the first embodiment. As shown in FIGS. 3 and 4, the air passage 3 is provided along the side surface of the main body 20, that is, across the tableware container 1 and the lower space 24, and between the outlet 21 and the outlet 22. Is formed with a partition plate 23 for separating the air passage 3. A cooling unit 5 for cooling the air discharged from the discharge port 21 and a heating unit 7 for heating the cooled air are installed in the air passage 3. Further, a blower fan 18 is installed in the blower path 3 between the cooling unit 5 and the heating unit 7 as shown in FIGS. The cooling unit 5 and the heating unit 7 are disposed below the casing 25 (lower space 24). This is to reduce the influence of the temperature change of the cooling unit 5 and the heating unit 7 on the tableware storage unit 1.

  The cooling unit 5 and the heating unit 7 are connected by a refrigerant pipe 11. An expander 10 is installed on the upstream side of the cooling unit 5, and a compressor 9 is installed on the upstream side of the heating unit 7 with respect to the refrigerant flow direction.

  The water supply pipe 26 between the booster 13 and the second three-way valve 15 is provided with a heat radiating portion 8 for heating the supplied water. The heat radiating portion 8 is downstream of the compressor 9. The refrigerant pipe 11 on the side and upstream of the expander 10 is arranged in parallel with the heating unit 7. A first three-way valve 12 is installed on the refrigerant pipe 11 in order to selectively allow the refrigerant to flow through the heating unit 7 and the heat radiating unit 8.

  The heating unit 7 or the heat radiation unit 8 is a condenser, the cooling unit 5 is an evaporator, and the compressor 9, the expander 10, and the refrigerant pipe 11 constitute a heat pump circuit. This heat pump circuit is arranged in the lower space 24. Carbon dioxide is used as the refrigerant of the heat pump circuit.

  Further, in order to transmit the rotational energy generated in the expander 10 to the nozzle 16 by utilizing a large pressure difference between the refrigerant flowing through the heat radiating unit 8 and the cooling unit 5, the rotating shaft of the expander 10 and the rotating shaft of the nozzle 16 are used. Are connected to the lower space 24. Control means 28 for controlling the first three-way valve 12 and the second three-way valve 15 is provided.

  An example of the cleaning means of the present invention corresponds to the nozzle 16 of the first embodiment, and an example of the water heating unit of the present invention corresponds to the heat radiating unit 8 of the first embodiment. An example of the air heating unit of the present invention corresponds to the heating unit 7 of the first embodiment. An example of the water supply path of the present invention corresponds to the water supply pipe 26 of the first embodiment, and an example of the water discharge path of the present invention corresponds to the drainage path 27 of the first embodiment. An example of the energy transmission means of the present invention corresponds to the rotation transmission unit 17 of the first embodiment.

  An example of the first condenser of the present invention corresponds to the heating unit 7 of the first embodiment, and an example of the second condenser of the present invention corresponds to the heat dissipating unit 8 of the first embodiment. To do.

  Hereinafter, the operation of the dishwasher in the first embodiment having the above-described configuration will be described below, and an example of the operation method of the dishwasher of the present invention will be described at the same time.

  First, a cleaning process is performed. First, the water supplied from the water supply pipe to the water supply pipe 26 is introduced into the booster 13 and the water pressure rises. Subsequently, the pressurized water enters the heat radiating section 8, but the first three-way valve 12 is switched, and the heat radiating section 8 functions as a condenser of the heat pump circuit, where heat is exchanged with high-temperature and high-pressure refrigerant. The temperature is raised to about 60 ° C. Further, the second three-way valve 15 is switched to the nozzle 16 side, and the water whose temperature has been raised is supplied to the nozzle 16 and is ejected from here toward the tableware 2.

  The dirt attached to the tableware 2 is removed by the water pressure of the spray. The reaction force when the water is ejected is used for the rotational energy of the nozzle 16. The washed water is drained through the drainage section 6.

  Moreover, since the water heated up from the nozzle 16 is ejected in the tableware accommodating part 1, water vapor | steam density | concentration becomes high. The air having a high water vapor concentration is discharged from the discharge port 21 provided in the tableware container 1 and circulates in the air passage 3 by the blower fan 18.

  The air discharged from the discharge port 21 enters the cooling unit 5, which functions as an evaporator of the heat pump circuit, so that heat is exchanged with a low-temperature and low-pressure refrigerant, the air is cooled, Some of the water vapor condenses. The condensed water is drained via the drainage unit 6. Further, the air having a reduced water vapor concentration returns to the tableware storage unit 1 from the outlet 22 via the heating unit 7. In addition, since no refrigerant is flowing through the heating unit 7, heat exchange or the like is not performed.

  Here, the refrigerant flows in the order of the cooling unit 5, the compressor 9, the heat radiating unit 8, and the expander 10, and is rotated by the expander 10 using a large pressure difference between the refrigerant flowing through the heat radiating unit 8 and the cooling unit 5. Convert to energy. The rotational energy obtained by the expander 10 is transmitted as rotational energy of the nozzle 16 via the rotation transmission unit 17. The rotational direction applied to the nozzle 16 by this rotational energy is opposite to the rotational direction that utilizes the reaction force of the water that is spouted. Thus, the momentum of the water sprayed to the tableware 2 can be increased by rotating in the direction opposite to the direction due to the reaction force of water. Moreover, since it is preferable that the nozzle 16 rotates at the time of washing | cleaning of the tableware 2, it is preferable that one of the rotational energy by the reaction force of the water to eject and the rotational energy by the expander 10 is large.

  Subsequently, a drying process is performed. The drying process is divided into a first drying process and a second drying process.

  In the first drying step, the first three-way valve 12 is switched to cause the heating unit 7 to function as a condenser of the heat pump circuit, and the air flowing through the air blowing path 3 exchanges heat with the heating unit 7. The hot air is about 80 ° C. This warm air flows into the tableware container 1 via the blowout port 22, and heats and evaporates the water adhering to the surface of the tableware 2 to dry it.

  Further, the air in which the adhering water evaporates and the water vapor concentration becomes high is discharged from the discharge port 21 provided in the tableware container 1, and circulates in the air passage 3 by the blower fan 18. The air discharged from the discharge port 21 enters the cooling unit 5, which functions as an evaporator of the heat pump circuit, so that heat is exchanged with a low-temperature and low-pressure refrigerant, the air is cooled, Some of the water vapor condenses. The condensed water is drained via the drainage unit 6.

  Further, the air having a reduced water vapor concentration enters the heating unit 7, is heated as described above, and flows into the tableware storage unit 1.

  Subsequently, in the second drying process, the air in the tableware storage unit 1 is discharged from the discharge port 21 provided in the tableware storage unit 1, and circulates in the blower path 3 by the blower fan 18. The air discharged from the discharge port 21 enters the cooling unit 5, which functions as an evaporator of the heat pump circuit, so that heat is exchanged with a low-temperature and low-pressure refrigerant to cool the air. Further, the cooled air returns to the tableware storage unit 1 from the outlet 22 via the heating unit 7. The first three-way valve 12 is switched so that the radiator 8 functions as a condenser of the heat pump circuit, and no refrigerant is passed through the heating unit 7, so heat exchange or the like is not performed in the heating unit 7. . Therefore, the air blown into the tableware container 1 from the outlet 22 is air that has been cooled by the cooling unit 5.

  Moreover, although the water supplied from the water pipe is introduced into the booster 13, the pressure is not increased. Subsequently, water enters the radiator 8, but functions as a condenser of the heat pump circuit, where heat is exchanged with a high-temperature and high-pressure refrigerant, and the temperature is raised to about 60 ° C. Further, the second three-way valve is switched to the drainage channel 27 side, and the water whose temperature has been raised is drained.

  From the above, by using the air in the tableware container 1 being cleaned as a heat source of the cooling unit 5 as in this configuration, the air (water vapor) contains the dirt component attached to the tableware 2. Therefore, the heat exchange performance of the cooling unit 5 is not deteriorated, and the washing water is heated by the heat received by the refrigerant in the cooling unit 5, so that high energy saving performance can be obtained even when used for a long time. Can be maintained. Moreover, since the temperature of the refrigerant | coolant which flows into the cooling part 5 can be made high, the efficiency of a heat pump circuit also becomes high.

  In addition, by performing the second drying step after the first drying step, the tableware 2 once warmed at the time of drying is cooled immediately after drying, so that it can be stored in a temperature range where various germs propagate. In addition, when the user takes out, the temperature is lowered and an unsanitary impression is not received.

  Further, by converting the pressure difference energy of the refrigerant into rotational energy by the expander 10 and transmitting the rotational energy to the nozzle 16 via the rotation transmission unit 17, the energy that was discarded when the refrigerant was decompressed is supplied to the water tableware. Since it can collect | recover as energy utilized for rotation of a nozzle in order to raise a collision force, high energy-saving property is realizable.

  Furthermore, since the rotation transmission part 17 of this Embodiment 1 has connected the rotating shaft of the expander 10, and the rotating shaft of the nozzle 16, the rotational energy of the expander 10 is not converted into other energy, Since it is transmitted, highly efficient energy recovery becomes possible. Moreover, it is good also as the rotating shaft of the expander 10 and the nozzle 16 being the same, and the same effect as the above is acquired. Compared in detail, since the rotational energy of the expander 10 is not lost due to friction of the rotation transmitting unit 17 or the like, it is advantageous to make the rotation shafts the same efficiently, but each part is arranged efficiently. In order to reduce the size of the device, it is more advantageous to transmit the rotation via the rotation transmission unit 17. Further, the example in which the rotation axis of the nozzle of the present invention is also used as the rotation axis of the expander corresponds to the case where the rotation axes of the expander 10 and the nozzle 16 are the same.

  Moreover, since sufficient collision force of water is obtained by applying the rotation by the rotational energy of the expander 10 in the opposite direction to the rotation direction of the nozzle 16 that utilizes the reaction force when water is spouted, it is higher. A cleaning effect can be obtained.

  For example, a dishwasher without a drying function that does not include the heating unit 7, the first three-way valve 12, and the rotation transmission unit 17 corresponds to an embodiment of the first aspect of the present invention.

  For example, a dishwasher that does not include the rotation transmission unit 17 of the dishwasher according to the first embodiment corresponds to an example of the dishwasher according to the third aspect of the present invention. Furthermore, the tableware dryer without a cleaning function such as the nozzle 16, the booster 13, the water supply pipe 26, and the drainage channel 27 corresponds to an embodiment of the tableware dryer according to the second aspect of the present invention. However, in this case, the heat radiating unit 8 which is an example of the second condenser of the present invention is installed in a place other than the air passage 3 and needs to exchange heat with the outside air or the like.

  Further, for example, the dishwasher without the drying function is a configuration in which the cooling unit 5 and the heating unit 7 of the heat pump circuit are not installed in the air passage 3, and the dishwasher according to the fourth embodiment of the present invention is an example. Equivalent to.

  Moreover, you may rotate the nozzle 16 only with the rotational energy of the expander 10, without utilizing the reaction force at the time of ejecting water. Also in this case, since the reaction force that spouts out water is not used, the collision force of water against the tableware 2 does not become weak, and a higher cleaning effect can be obtained as described above.

  In addition, by arranging the heat pump circuit or the like in the lower space 24, the depth and width do not increase, so that it is possible to ensure the same level of installation as before without being restricted when installing in the kitchen. it can.

  Furthermore, carbon dioxide is used as a refrigerant in the heat pump circuit. With this configuration, hot water or air with high temperature can be generated with high heat pump efficiency. In addition, since the pressure difference is large, it is easy to collect the expansion power, so that it is possible to achieve excellent performance in terms of hygiene while ensuring energy saving. Except for the point that the drying temperature can be increased and the recovery efficiency of expansion power is high, the same effect can be obtained even if a natural refrigerant such as HFC, hydrocarbon, or ammonia is used.

  An example of the expansion means of the present invention corresponds to the expander 10 according to the first embodiment. However, the expansion power is not collected except for use in rotating the nozzle 16, and therefore expansion only by reducing pressure is performed. A valve or the like may be used.

(Embodiment 2)
FIG. 5 is a configuration diagram of the dishwasher according to the second embodiment of the present invention.

  Below, the structure and operation | movement are demonstrated about the dishwasher of this Embodiment 2 shown in FIG. 5, However, Description is abbreviate | omitted about the part which overlaps with Embodiment 1. FIG. In addition, the same code | symbol is attached | subjected with respect to the component same as Embodiment 1. FIG.

  The dishwasher / dryer according to the second embodiment uses a rotation generated in the expander 10 instead of the rotation transmission unit 17 used to connect the expander 10 and the rotation shaft of the nozzle 16 used in the first embodiment. The difference is that a generator 19 for converting energy into electric power is provided. The electric power generated by the generator 19 is supplied to the booster 13.

  Next, operation | movement of the dishwasher of this Embodiment 2 is demonstrated.

  In the washing process, the water supplied from the water pipe to the water supply pipe 26 is introduced into the booster 13 and the water pressure rises. Subsequently, the pressurized water enters the heat radiating section 8, but the first three-way valve 12 is switched, and the heat radiating section 8 functions as a condenser of the heat pump circuit, where heat is exchanged with high-temperature and high-pressure refrigerant. The temperature is raised to about 60 ° C. Further, the second three-way valve 15 is switched to the nozzle 16 side, and the water whose temperature has been raised is supplied to the nozzle 16 and is ejected from here toward the tableware 2. The dirt attached to the tableware 2 is removed by the water pressure of the spray. The reaction force when the water is ejected is used for the rotational energy of the nozzle 16. The washed water is drained through the drainage section 6.

  Moreover, since the temperature-rise water is ejected from the nozzle 16 in the tableware accommodating part 1, water vapor | steam density | concentration becomes high. The air having a high water vapor concentration is discharged from the discharge port 21 provided in the tableware container 1 and circulates in the air passage 3 by the blower fan 18.

  The air discharged from the discharge port 21 enters the cooling unit 5, which functions as an evaporator of the heat pump circuit, so that heat is exchanged with a low-temperature and low-pressure refrigerant, the air is cooled, Some of the water vapor condenses. The condensed water is drained via the drainage unit 6. Further, the air having a reduced water vapor concentration returns to the tableware storage unit 1 from the outlet 22 via the heating unit 7. In addition, since no refrigerant is flowing through the heating unit 7, heat exchange or the like is not performed.

  Here, the refrigerant flows in the order of the cooling unit 5, the compressor 9, the heat radiating unit 8, and the expander 10, and is rotated by the expander 10 using a large pressure difference between the refrigerant flowing through the heat radiating unit 8 and the cooling unit 5. Convert to energy. The rotational energy obtained by the expander 10 is converted into electric power by the generator 19. The electric power generated by the generator 19 is supplied to the booster 13 and the pressure of water can be further increased.

  Thereby, rotation of the nozzle 16 which rotates using the reaction force of the water to spout is assisted.

  From the above, according to this configuration, the rotational energy obtained by the expander 10 can be converted into electric power and supplied to the water booster 13 to increase the pressure at which water is directly ejected from the nozzle 16. Therefore, high cleaning performance can be ensured.

  In the second embodiment, the generator 19 is provided, and the rotational energy generated in the expander 10 is converted into electric power and used for the rotation of the nozzle 16. However, as in the first embodiment, rotation transmission is performed. The rotational energy of the expander 10 may be transmitted to the nozzle 16 through the section, and the same effect as described above can be obtained. In addition, as a power supply destination, when the nozzle 16 is rotated by a motor which is an example of the driving means of the present invention, the motor may be used.

  In the case of conversion to electric power, it is advantageous in that the positional relationship when connecting the expander 10 and the nozzle 16 is not restricted. Furthermore, the provision of a motor is advantageous in that it is not subject to restrictions such as the rotational speed of the expander 10. In particular, when the pressure is supplied to the booster 13, the pressure ejected directly from the nozzle can be increased, so that high cleaning performance can be ensured.

  The program of the present invention is a program for causing a computer to execute the operations of all or part of the operation method of the dishwasher of the present invention described above, and is a program that operates in cooperation with the computer. is there.

  Further, the recording medium of the present invention is a recording medium recording a program for causing a computer to execute all or part of the operations of all or part of the operation method of the dishwasher of the present invention described above, A recording medium that is readable by a computer and in which the read program executes the operation in cooperation with the computer.

  In addition, the “part of steps” of the present invention means one or several steps among the plurality of steps.

  Further, the “operation of the process” of the present invention means the operation of all or a part of the process.

  Further, one usage form of the program of the present invention may be an aspect in which the program is recorded on a recording medium such as a ROM readable by a computer and operates in cooperation with the computer.

  Also, one use form of the program of the present invention is an aspect in which the program is transmitted through a transmission medium such as the Internet, a transmission medium such as light, radio wave, and sound wave, read by a computer, and operates in cooperation with the computer. Also good.

  The computer of the present invention described above is not limited to pure hardware such as a CPU, but may include firmware, an OS, and peripheral devices.

  As described above, the configuration of the present invention may be realized by software or hardware.

  The dishwasher, the dishwasher and the operation method thereof according to the present invention can achieve higher energy savings, or do not give the user an impression that it is not hygienic, or obtain higher cleaning performance. However, it can be applied to large equipment. Further, the object to be washed and dried is not limited to tableware, and can be applied to clothes, for example.

Front view of the dishwasher according to Embodiment 1 of the present invention Sectional drawing between AA 'of the dishwasher shown in FIG. Sectional drawing between BB 'of the dishwasher shown in FIG. The structure perspective view which showed the relationship between the main body of the dishwasher in Embodiment 1 of this invention, a tableware accommodating part, and a ventilation path Front view of the dishwasher according to Embodiment 2 of the present invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tableware storage part 2 Tableware 3 Air supply path 5 Cooling part 6 Drainage part 7 Heating part 8 Heat radiation part 9 Compressor 10 Expander 11 Refrigerant piping 12 1st three-way valve 13 Booster 14 Water piping 15 2nd three-way valve 16 Nozzle 17 Rotation transmission part 18 Blower fan 19 Generator

Claims (14)

A tableware container for placing tableware;
An air passage connecting a blow-out port for sending air into the tableware storage unit and a discharge port for discharging air from the tableware storage unit;
A cooling section provided in the air passage to cool the discharged air;
Cleaning means for cleaning the tableware;
A water heating section for heating water supplied to the cleaning means;
A heat pump cycle having a compressor, a condenser, an expansion means, and an evaporator installed on a refrigerant pipe through which the refrigerant flows;
The cooling unit is composed of the evaporator,
The water heating unit is a dishwasher including the condenser. A tableware container for placing tableware;
An air passage connecting an outlet for sending air into the tableware container and an outlet for discharging air from the tableware container;
A cooling section provided in the air passage to cool the discharged air;
An air heating unit provided in the air passage for heating the air cooled by the cooling unit;
Switching between the compressor, the first condenser, the second condenser, the expansion means, and the evaporator, and the first condenser and the second condenser, which are installed on the refrigerant pipe through which the refrigerant flows. A heat pump cycle having a first three-way valve installed on the refrigerant pipe to perform
Control means for controlling the first three-way valve so as to operate the second condenser after the first condenser is operated for a predetermined time during drying;
The cooling unit is composed of the evaporator,
The air heating unit is configured by the first condenser,
The second condenser is a tableware dryer installed in a place other than the air passage. A tableware dryer according to claim 2;
Cleaning means for cleaning the tableware;
A water supply path for supplying water to the cleaning means;
A water heating section installed in the water supply path, for heating water supplied to the cleaning means, and a water discharge path branched from the water supply path between the cleaning means and the water heating section;
A second three-way valve installed at the branch point;
The water heating unit is composed of the second condenser,
The control means controls the second three-way valve so that water is supplied to the water discharge path when controlling the first three-way valve. A tableware container for placing tableware;
A nozzle for cleaning the tableware installed in the tableware container;
A heat pump having a compressor, a condenser, an expander, and an evaporator installed on a refrigerant pipe through which the refrigerant flows;
A dishwasher comprising: energy transmission means for utilizing rotational energy generated in the expander for washing the tableware.   The dishwasher according to claim 4, wherein the energy transmission means is a means for connecting a rotation shaft of the nozzle and a rotation shaft of the expander.   The dishwasher according to claim 5, wherein a rotation axis of the nozzle is also used as a rotation axis of the expander.   The dishwasher according to claim 4, wherein the energy transmission unit includes a power generation unit configured to generate electric power using rotational energy generated in the expander. The energy transmission means further includes a driving means for rotating the nozzle,
The dishwasher according to claim 7, wherein the electric power generated by the power generation means is supplied to the drive means. A pressure increasing means for increasing the pressure of water ejected from the nozzle;
The dishwasher according to claim 7, wherein the electric power generated by the power generation means is supplied to the boosting means.   The dishwasher according to claim 1 or 4, wherein the refrigerant is carbon dioxide.   The tableware dryer according to claim 2, wherein the refrigerant is carbon dioxide. A method for operating a dishwasher using the dishwasher according to claim 3,
A first drying step of operating the first condenser for a predetermined time;
After the first drying step, the first three-way valve is operated so as to operate the second condenser, and the second three-way valve is controlled so that water is supplied to the water discharge path side. The operation method of a dishwasher provided with the 2nd drying process to perform.   The operation method of the dishwasher according to claim 12, wherein the first condenser is operated for a predetermined time, and the second condenser is operated after the first drying process. A program for causing a computer to execute a second drying step for controlling the second three-way valve so that water is supplied to the first three-way valve and the water discharge path side. A recording medium on which the program according to claim 13 is recorded, wherein the recording medium can be processed by a computer.

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