JP2009028205A - Dishwasher/dryer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dish washer/dryer with improved comfort of exhaust air by evenly and securely mixing the inner and the outer air of a washing tank during drying operation and promoting reduction of temperature of exhaust air and the amount of moisture contained in the exhaust air. <P>SOLUTION: A drying means 9 is provided at the upstream side of an air blower 6 with a mixing section 13 for mixing the outer air and the inner air of the washing tank that flows out of the washing tank and an air volume distributing section 12 for changing the mixing proportion of the outer air and the inner air of the washing tank. The hot air sensation of the exhaust air of which temperature and humidity reduced can be securely prevented by promoting mixture of the outer air and the inner air of the washing tank by the air blower 6, by evenly mixing the outer air and the inner air of the washing tank, and by separating and eliminating condensed and atomized moisture from the air. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a dishwasher which is installed in a kitchen or the like and performs storing, automatic cleaning, and drying of an object to be cleaned.

  Conventionally, this type of dishwasher has a configuration in which outside air is blown into a washing tub to dry the object to be washed after the washing is finished, and high temperature and humidity in the washing tub is discharged (for example, Patent Documents). 1).

FIG. 5 shows a conventional dishwasher described in Patent Document 1. In FIG. As shown in FIG. 5, a cleaning tank 1 for storing an object to be cleaned, a cleaning means 4 having a cleaning nozzle 2 for injecting cleaning water and a cleaning pump 3 for pressurizing the cleaning water, and a heating means 5 for heating the cleaning water. And a blower 6 that blows outside air into the cleaning tank 1, an exhaust port 7 that exhausts air inside the cleaning tank 1, and an exhaust assisting means 8 that mixes the outside air provided in the exhaust port 7.
JP 2000-166847 A

  However, in the above-described conventional configuration, the fresh external air is mixed with the exhaust as a substream by the fluid force of the high-temperature and high-humidity mainstream that flows into the exhaust port, and the exhaust that can reduce the temperature of the high-temperature and high-humidity cleaning tank exhaust is discharged. However, there was a problem that there was not enough air volume to cool down enough to avoid the hot air feeling.

  The present invention solves the above-mentioned conventional problems, and reliably mixes the air in the cleaning tank and the outside air during the drying operation, and promotes a reduction in the temperature of the exhaust gas and a reduction in the amount of moisture in the exhaust gas. The object is to provide a dishwasher with enhanced comfort.

  In order to solve the above-described conventional problems, the dishwasher of the present invention is characterized in that the drying means is a mixing unit for mixing the outside air and the washing tank inside air that has flowed out of the washing tank, and the mixing ratio of the outside air and the washing tank inside air. An air volume distribution unit that changes the air flow rate is provided on the upstream side of the blower, and the blower is configured to promote mixing of the outside air and the cleaning tank internal air.

  As a result, the mixed fluid of the outside air and the inside of the washing tub can be vigorously mixed with the air blower during the drying operation so that the outside air and the inside of the washing tub can be mixed without any defects. Can be prevented.

  The dishwasher of the present invention can prevent the feeling of hot air due to the exhaust gas with reduced temperature and humidity discharged during the drying operation.

  According to a first aspect of the present invention, there is provided a cleaning tank for storing an object to be cleaned, a cleaning means for spraying and circulating cleaning water to the object to be cleaned, a heating means for heating the cleaning water, and an exhaust port for discharging moisture inside the cleaning tank. And a drying means having a blower, and a control means for controlling the drying means, wherein the drying means mixes the outside air and the washing tank internal air that has flowed out of the washing tank, and the outside air and the washing An air volume distribution unit that changes the mixing ratio with the tank internal air is provided on the upstream side of the blower, and the mixing fan promotes the mixing of the outside air and the cleaning tank internal air with the blower. Stir vigorously to ensure that the outside air and the inside of the washing tank are mixed without any defects, and the water condensed and atomized by cooling can be separated from the air by using a blower. Certain prevention is possible.

  According to the second invention, in particular, in the drying means of the first invention, the condensed water is discharged into the indoor space by providing a recovered water discharge part for discharging the recovered water from the drying means on the downstream side of the blower. It is possible to improve the comfort of the indoor space.

  According to a third aspect of the invention, particularly in the air volume distribution section of the first or second aspect of the present invention, there is provided a cleaning tank internal air passage that communicates with the mixing section via the cleaning tank and an outside air passage that sends cooling direct air to the mixing section. By providing a damper whose opening is changed by wind pressure in at least the cleaning tank air passage, the damper is opened by the negative pressure generated by the operation of the blower and the opening is changed by the magnitude of the negative pressure. As a result, it is possible to distribute the air volume, smooth the shape change of the distribution passage, reduce the passage resistance, and reduce the size and input of the blower.

  According to a fourth aspect of the invention, in particular, in the air volume distribution section of any one of the first to third aspects of the present invention, a cleaning tank internal air passage that communicates with the mixing section via the cleaning tank and an outside air that sends the outside air directly to the mixing section By providing at least one of the passages with a valve body portion that opens and closes the passage, air volume distribution operation is performed by opening and closing operation of the valve body portion, and flow pulsation is generated inside the washing tank to distribute the air flow. Drying can be promoted.

  According to a fifth aspect of the invention, in particular, in the drying means according to any one of the first to fourth aspects, an ejector unit is provided that sucks and mixes the outside air and the inside of the cleaning tank with the suction fluid force generated by the operation of the blower. By integrating the mixing section and the air volume distribution section and consolidating them in the ejector section, the mixing and the air volume distribution are integrated, and the configuration can be simplified.

  6th invention makes it possible to change the clearance dimension between the nozzle part for flowing the air in the cleaning tank and the throat part for flowing the outside air, particularly in the ejector part of the 5th invention, and the air volume ratio between the air in the cleaning tank and the outside air By making the pressure variable, it is possible to make a large change in the air volume ratio in the mixing section by using negative pressure and making the gap size variable, and setting such as improving the drying performance by reducing the exhaust temperature or increasing the dry air volume Can be improved.

  In the seventh invention, the gap size of the sixth invention is particularly increased at the start of the drying operation to increase the air volume ratio of the outside air, and is reduced by the progress of the drying operation to reduce the air volume ratio of the outside air. The air volume is surely distributed regardless of the air volume control of the blower, and both the reduction of the exhaust temperature in the initial stage of drying and the promotion of drying due to the increase in the air volume when the humidity is lowered due to the progress of drying.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

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

  In FIG. 1, a cleaning means 4 having a cleaning nozzle 2 for jetting and circulating cleaning water to the object to be cleaned and a cleaning pump 3 for pressurizing the cleaning water below a cleaning tank 1 for storing the object to be cleaned such as tableware. And the heating means 5 which heats washing water and heats up is arrange | positioned. Further, the drying means 9 has a blower 6 for blowing outside air to discharge moisture in the cleaning tank 1 and drying the inside of the cleaning tank 1, and an exhaust port 7 for discharging moisture in the cleaning tank 1. Is provided with an inflow port 10 through which outside air flows in and an outflow port 11 through which air in the cleaning tank 1 (cleaning tank internal air) is discharged.

  An air volume distribution section 12 that distributes the air volume for drying and cooling is connected to the upstream side of the blower 6, and an outside air passage 14 that introduces outside air into the mixing section 13 and a cleaning system are connected to the downstream side of the air volume distribution section 12. A cleaning tank internal air passage 15 communicating with the mixing unit 13 through the inlet 10, the cleaning tank 1, and the outlet 11 of the tank 1 is disposed. The mixing unit 13 communicates the outlet side with the blower 6, and the inlet side of the mixing unit 13 communicates with the outside air passage 14 and the outflow port 11 that is the cleaning tank internal air passage 15.

  In this way, the air volume distribution unit 12 and the mixing unit 13 are arranged on the upstream side of the blower 6, and the mixing unit 13 a that promotes mixing by stirring the fluid mixed in the mixing unit 13 is used for the blower 6. An exhaust port 7 is disposed on the downstream side of the blower 6 serving as the promotion portion 13a.

  The air volume distribution unit 12 distributes the air volume by changing the flow resistance to the outside air passage 14 and the washing tank internal air passage 15, and changes the flow rate ratio when the outside air and the washing tank inside air are mixed in the mixing unit 13. .

  The control means 16 controls the drying means 9 and is provided on the downstream side of the air volume control section 17 that controls the air volume of the blower 6, the cleaning tank temperature detection section 18 that detects the temperature in the cleaning tank 1, and the mixing section 13. The exhaust gas temperature detection unit 19 that detects the temperature of the exhaust gas or the temperature control unit 21 that sets the control amount based on the temperature detected by the outside air temperature detection unit 20 that detects the temperature of the outside air sucked by the blower 6 is provided.

  In this way, the drying means 9 changes not only the exhaust port 7 and the blower 6 but also the mixing unit 13 for mixing the outside air and the washing tank inside air on the upstream side of the blower 6 and the mixing ratio of the outside air and the washing tank inside air. An air volume distribution unit 12 is provided.

  The cleaning tank 1 is provided with a water supply pipe 23 having a water supply valve 22 for supplying cleaning water and a drain pipe 25 having a drain valve 24 for draining the cleaning water, and a slide body 27 that can be drawn out from the housing 26. It is stored. The slide body 27 is provided with a vent 28 communicating with the outside.

  The air volume distribution unit 12 includes a damper 29 whose opening degree changes depending on the pressure of the fluid flowing, that is, the wind pressure of the blower 6, and at least cleans the passages of the outside air passage 14 and the cleaning tank inside air passage 15. It is provided in the tank internal air passage 15 so that the passage resistance on the side of the cleaning tank internal air passage 15 is larger than that on the side of the external air passage 14, and the air volume to the external air passage 14 side is larger than that on the side of the cleaning tank internal air passage 15. ing.

  Here, a damper 29 a arranged in the outside air passage 14 and a damper 29 b arranged in the cleaning tank inside air passage 15 are provided in both the outside air passage 14 and the washing tank inside air passage 15. The fulcrum 30 of the damper 29 is arranged and supported above the center of gravity, and the damper 29 is closed by its own weight so as to be received by a valve seat 31 slightly inclined from the vertical plane.

  Further, since the fluid pressure for starting the opening of the damper 29 is set lower on the outside air passage 14 side than the washing tank inside air passage 15, the damper 29a of the outside air passage 14 is lighter than the damper 29b on the washing tank inside air passage 15 side. is doing. In other words, in order to make the damper 29b on the cleaning tank internal air passage 15 side heavier than the damper 29a of the external air passage 14, the thickness of the material is increased, the material is changed to a heavy material, or a weight is added.

  Further, on the downstream side of the blower 6, there is provided a recovered water discharge portion 32 that recovers the condensed and atomized water when the high-temperature and high-humidity cleaning tank air is cooled and discharges it from the drying means 9. One end of the discharge unit 32 is opened on the outlet side of the blower 6 and the other end is opened in the cleaning tank 1 to allow the blower 6 to act as the mixing promotion unit 13a and to cope with drainage for promoting the separation of moisture.

  About the dishwasher comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, the slide body 27 is pulled out from the housing 26 to store the tableware, which is the object to be cleaned, in the cleaning tank 1, and the slide body 27 is returned to its original state to start cleaning. When the cleaning operation is started, the water supply valve 22 is opened and water is supplied from the water supply pipe 23 to the cleaning tank 1. When a predetermined amount of water is supplied, the water supply valve 22 is closed and the water supply is stopped. When a certain cleaning pump 3 is operated, hot water is ejected from the cleaning nozzle 2 and sprayed on the tableware that is the object to be cleaned. The cleaning nozzle 2 is rotated by the reaction force of the cleaning water jetting, so that the cleaning water is spread over the object to be cleaned, thereby improving the cleaning performance. Here, the case where the heating means 5 is operated and washed with warm water is shown. However, if the object to be cleaned is weakly soiled, the heating means 5 may be operated without operating the water supply temperature, and the object to be cleaned may be contaminated. If it is strong, wash with detergent. When the cleaning operation is completed, the drain valve 24 is opened, and the cleaning water is drained from the drain pipe 25 to the outside of the housing 26. When draining is completed, the drain valve 24 is closed.

  In the next rinsing operation, water is supplied in the same manner as in the cleaning operation without adding detergent, and hot water is ejected from the cleaning nozzle 2 by the operation of the heating means 5 and the cleaning pump 3 and sprayed on the tableware to be cleaned. Let Since the object to be cleaned is dried after the rinsing operation, the object to be cleaned is preferably warmed in the rinsing operation, and sterilization can be performed by rinsing with high-temperature water of about 70 ° C to 80 ° C. . After the rinsing operation is completed, the rinsing water in the cleaning tank 1 is drained in the same manner as at the end of the cleaning operation.

  In the next drying operation, the blower 6 is operated and the outside air passage 14 is cleaned by the air volume distribution unit 12 in order to discharge the air in the cleaning tank 1 that has become hot and humid due to the rinsing operation and dry the object to be cleaned. The air is diverted to the tank internal air passage 15 and the outside air is sent to the mixing unit 13 and the cleaning tank 1.

  In particular, when the rinsing operation is performed with high-temperature water, the air flow control unit 17 of the control means 16 is used to prevent the blower from being discharged directly from the exhaust port 7 so that the high-temperature and high-humidity air in the cleaning tank 1 is not discharged. The air flow rate is controlled so that the negative pressure to be sucked is reduced, and the opening amount of the damper 29a of the outside air passage 14 is made larger than the damper 29b on the cleaning tank inside air passage 15 side, so that the air amount to the outside air passage 14 side is increased. The air volume is made larger than the amount of air flow toward the cleaning tank internal air passage 15 side.

  As a result, exhaust gas is produced by mixing a small amount of high-temperature and high-humidity cleaning tank air with a large amount of outside air, so that the cooling performance of the cleaning tank air by the outside air is improved and high-temperature exhaust gas is discharged at the start of the drying operation. In addition, it is possible to reduce the moisture in the exhaust by condensing and draining the moisture in the cleaning tank air when the cleaning tank air is cooled by outside air. Comfort can be improved.

  In particular, since the blower 6 is disposed on the downstream side of the mixing unit 13, the mixed fluid is strongly stirred by the blower by the rotation of the impeller (not shown) of the blower 6 so that the outside air and the cleaning tank air can be kept clean. Water that has been reliably mixed and that has been condensed and atomized by cooling the high-temperature and high-humidity cleaning tank air can be removed from the air by centrifugal force by rotating the impeller, so exhaust with reduced temperature and humidity The hot air feeling can be surely prevented.

  Further, the blower 6 acts as a mixing promoting unit 13 a that promotes mixing of the outside air and the cleaning tank internal air, the condensed water is separated by the blower 6 and excluded from the air, and the cleaning tank is provided via the recovered water discharge unit 32. Since it can reduce returning to the 1 side and flowing out from the exhaust port 7, it is possible to prevent the condensed water from being released into the indoor space and to enhance the comfort of the indoor space.

  In addition, the air volume distribution unit 12 has a wind pressure applied to at least one of the cleaning tank internal air passage 15 communicating with the mixing unit 13 via the cleaning tank 1 and the outside air passage 14 that sends direct outside air for cooling to the mixing unit 13. Since the damper 29 whose opening degree changes is provided, the damper 29 is opened by the negative pressure generated by the suction of the operation of the blower 6, and the opening degree is changed depending on the magnitude of the negative pressure so that the air volume can be distributed. Therefore, since the passages immediately before and immediately after the damper 29 can be arranged almost linearly, the shape change of the distribution passage can be smoothed, the passage resistance can be reduced, and the fan can be reduced in size and input.

  FIG. 2 is a configuration diagram showing another air volume distribution unit 12 in the drying means 9, and a valve body 33 for opening and closing the passage is provided in the outside air passage 14. The valve body 33 is opened and closed by the valve body control unit 34 of the control means 16 to control the flow rate of the cooling outside air flowing through the outside air passage 14.

  The operation during the drying operation in this configuration will be described. First, at the start of the drying operation, the valve body control section 34 opens the valve body section 33 to ensure the outside air for cooling. The air volume ratio (outside air / inside of the washing tank) of the outside air with respect to the inside of the washing tank when the valve body 33 is opened is set in the outside air passage 14 and the washing tank so that the outside air side is larger than the inside of the washing tank. By setting the passage resistance of the air passage 15, high-temperature exhaust gas is prevented from exiting from the exhaust port 7.

  Further, if a decrease in humidity or temperature in the cleaning tank 1 as the drying operation progresses is detected by the temperature in the exhaust temperature detection unit 19, the cleaning tank temperature detection unit 18, the outside air temperature detection unit 20, or the like, Even if it is reduced, the exhaust temperature can be reduced to a predetermined value. Therefore, the valve body 33 is controlled to be opened and closed by the valve body controller 34 to reduce the air volume of the outside air toward the mixing section 13. Moreover, by changing the opening / closing interval of the valve body 33 as the decrease in humidity or temperature increases, the opening time is shortened, the air volume of the outside air is reduced, and the air volume ratio is set. Thus, the control of the exhaust gas temperature can be improved, for example, by keeping the exhaust gas temperature within a predetermined value. Further, since the pulsation of the flow occurs in the dry air flowing into the cleaning tank 1 by opening and closing the valve body 33, the flow in the cleaning tank 1 is changed and the concentration of the flow in the local area is alleviated, so that the inside of the cleaning tank 1 is reduced. As a result, the flow becomes more widespread and the drying property is improved.

  Here, the case where the valve body portion 33 is provided on the outside air passage 14 side is shown, but the valve body portion 33 may be provided on the cleaning tank inside air passage 15 side, and the valve body portion 33 may be provided on the outside air passage 14 side and You may provide in both the washing tank inside air channel | paths 15 side.

  Thus, the valve body part 33 opens and closes the passage to either the cleaning tank internal air passage 15 for sending the cleaning tank internal air flowing out from the cleaning tank 1 to the mixing unit 13 or the external air passage 14 for directly sending external air to the mixing unit 13. By providing the air flow distribution operation is performed by the opening and closing operation of the valve body portion 33, and the pulsation of the flow is generated inside the cleaning tank so that the air can be distributed and the drying can be promoted.

  As described above, in the present embodiment, the cleaning tank for storing the object to be cleaned, the cleaning means for spraying and circulating the cleaning water to the object to be cleaned, the heating means for heating the cleaning water, and the inside of the cleaning tank There is provided a drying means having an exhaust port for discharging moisture and a blower, and a control means for controlling the drying means, the drying means comprising a mixing unit for mixing the outside air and the inside air of the washing tank flowing out from the washing tank, and the outside air An air volume distribution unit that changes a mixing ratio with the cleaning tank internal air is provided on the upstream side of the blower, and the blower is a mixing promotion unit that promotes mixing of the outside air and the cleaning tank internal air, whereby the mixed fluid is supplied to the blower. By vigorous stirring, the outside air and the inside of the washing tank can be mixed without any defects, and the moisture condensed and atomized by cooling can be separated from the air by using a blower. Can be surely prevented.

  In addition, the drying means of the present embodiment is provided with a recovered water discharge portion for discharging the recovered water from the drying means on the downstream side of the blower, thereby preventing the condensed water from being released into the indoor space. The comfort of the space can be increased.

  In addition, the air volume distribution unit of the present embodiment has a wind pressure in at least the cleaning tank internal air passage of the cleaning tank internal air passage that communicates with the mixing section via the cleaning tank and the external air passage that sends direct external air for cooling to the mixing section. By providing a damper whose opening degree changes, the damper opens due to the negative pressure generated by the suction of the blower, and the opening degree is changed depending on the magnitude of the negative pressure to enable air volume distribution. The shape of the distribution passage can be made smooth to reduce the passage resistance, and the blower can be reduced in size and input.

  In addition, the air volume distribution unit of the present embodiment is a valve that opens and closes a passage in at least one of a cleaning tank internal air passage that communicates with the mixing unit via the cleaning tank and an outside air passage that directly sends outside air to the mixing unit. By providing the body part, the air volume distribution operation is performed by the opening and closing operation of the valve body part, and the pulsation of the flow is generated inside the washing tank so that the air can be distributed and the drying can be promoted.

(Embodiment 2)
FIG. 3 is a block diagram of the drying means of the second embodiment of the present invention.

  In FIG. 3, the same members and functions as those in the embodiment of FIGS. 1 to 2 are denoted by the same reference numerals, detailed description thereof will be omitted, and different points will be mainly described.

  The drying means 9 is provided with an ejector section 34 that sucks and mixes the outside air and the inside air of the cleaning tank by the suction fluid force generated by the operation of the blower 6. The ejector section 34 can change the gap size 37 between the nozzle section 35 for flowing the cleaning tank inside air and the throat section 36 for flowing the outside air, and can change the air volume ratio between the cleaning tank inside air and the outside air according to the drying conditions. I am doing so. Since the wake part 34a of the ejector part 34 thus formed serves as a passage for mixing the cleaning tank inside air and the outside air, the ejector part 34 is connected to the air volume distribution part 12 for setting the mixing ratio of the cleaning tank inside air and the outside air. A mixing unit 13 for mixing fluids is integrated as a unit.

  The throat portion 36 can be moved with respect to the nozzle portion 35 by the drive portion 38 (in the left-right direction in FIG. 3), and the gap size 37 can be changed. In FIG. Indicates the state.

  FIG. 4 shows the case of Lb (Lb <La) in which the drive part 38 is operated to move the throat part 36 toward the nozzle part 35 and the gap dimension 37 is shortened. The flow rate of inside air increases.

  About the dishwasher comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  At the start of the drying operation, the gap 37 between the nozzle part 35 and the throat part 36 is increased as shown in La in FIG. 3 along with the operation of the blower 6 so that the negative pressure of the blower 6 does not easily reach the nozzle part 35. The air volume of the cleaning tank is reduced, the outside air volume is increased by a large gap size 37 (La in FIG. 3), and both fluids are mixed using the wake portion 34a as the mixing portion 13. As described above, when the drying operation is started, the gap size 37 is increased to increase the air volume ratio of the outside air with respect to the cleaning tank inside air, thereby increasing the action of cooling the high temperature and high humidity cleaning tank inside air.

  Further, if the temperature and humidity in the cleaning tank 1 decrease as the drying operation proceeds, the amount of outside air for cooling the cleaning tank air can be reduced. To make the gap dimension 37 smaller as indicated by Lb in FIG. When the gap dimension 37 is reduced, the negative pressure of the blower 6 easily reaches the nozzle portion 35, the air volume of the cleaning tank air increases, and the outside air passing through the gap dimension 37 decreases because the passage resistance increases. For this reason, the air volume ratio of the outside air with respect to the cleaning tank internal air decreases, and the drying air volume flowing from the inlet 10 of the cleaning tank 1 is increased, thereby promoting drying. In this manner, the air volume distribution can be ensured by setting the gap dimension 37 of the ejector section 34, and the exhaust temperature can be reduced and the drying performance can be achieved without controlling the air volume of the blower 6. Further, by adding the air volume control of the blower 6, when the temperature and humidity of the exhaust gas flowing out from the exhaust port 7 are high, the air flow of the blower 6 is decreased, and the flow rate flowing out from the exhaust port 7 is decreased so that unpleasant exhaust gas is generated. Convenience can be further enhanced by increasing comfort by preventing a wide range from being reached and increasing the air flow of the blower 6 to increase drying when the temperature and humidity of the exhaust gas flowing out from the exhaust port 7 are reduced. .

  By further moving the throat portion 36 toward the nozzle portion 35 to bring the throat portion 36 into close contact with the nozzle portion 35 and setting the gap size 37 to zero, the entire air volume of the blower 6 can be used as dry air. Is sufficiently separated from the nozzle portion 35, the amount of the outside air can be made almost equal to the mixing portion 13. Therefore, by arranging the ejector part 34 upstream of the blower 6 and applying a negative pressure, the mixing part 13 and the air volume distribution part 12 are integrated, and the configuration can be simplified. Further, by controlling the gap size 37, the air volume ratio to the mixing unit 13 can be largely changed from the state of the outside air to the state of all the air in the washing tank, and the controllability of the exhaust temperature is enhanced and the drying property is improved. The degree of freedom in setting the control content can be improved.

  As described above, the drying means of the present embodiment includes an ejector unit that sucks at least one of the outside air and the cleaning tank inside air by the fluid force generated by the operation of the blower, and the mixing unit and the air volume distribution unit Are integrated in the ejector section, so that mixing and air volume distribution are integrated, and the configuration can be simplified.

  In addition, the ejector part of the present embodiment is capable of changing the gap size between the nozzle part through which the cleaning tank internal air flows and the throat part through which the external air flows, thereby making the air volume ratio between the cleaning tank internal air and the external air variable. By making use of negative pressure and making the gap size variable, the air volume ratio in the mixing section can be changed greatly, and the degree of freedom of setting can be improved, such as reducing the exhaust temperature or improving the drying performance by increasing the dry air volume. .

  Further, the gap size of the present embodiment is increased at the start of the drying operation to increase the air volume ratio of the outside air, and is decreased by the progress of the drying operation to reduce the air volume ratio of the outside air, thereby controlling the air volume of the blower. Regardless of this, reliable air volume distribution is achieved, and it is possible to achieve both reduction in exhaust temperature at the initial stage of drying and acceleration of drying by increasing the drying air volume when drying proceeds and the humidity decreases.

  As described above, the dishwasher according to the present invention can reliably prevent the hot air feeling of the exhaust temperature during drying and can be cooled according to the air condition of high temperature and high humidity, so that the rice cooker or electric kettle that generates steam It can be applied to household appliances such as containers.

The block diagram of the dishwasher in Embodiment 1 of this invention Another block diagram of the air volume distribution unit in FIG. The block diagram of the drying means in Embodiment 2 of this invention The block diagram which shows the other operation state of the air volume distribution part in FIG. Configuration of conventional dishwasher

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Washing tank 4 Washing means 5 Heating means 6 Blower 7 Exhaust port 9 Drying means 12 Air volume distribution part 13 Mixing part 13a Mixing promotion part 14 Outside air path 15 Washing tank internal air path 16 Control means 29 Damper 32 Recovery water discharge part 33 Valve body Part 34 Ejector part 35 Nozzle part 36 Throat part 37 Clearance size

Claims (7)

A cleaning tank for storing an object to be cleaned, a cleaning means for spraying and circulating cleaning water to the object to be cleaned, a heating means for heating the cleaning water, an exhaust port for discharging moisture inside the cleaning tank, and a drying means having a blower And a control means for controlling the drying means, the drying means mixing the outside air and the cleaning tank inside air that has flowed out of the cleaning tank, and mixing the outside air and the cleaning tank inside air A dishwasher / dryer comprising an air volume distribution unit for changing a ratio on an upstream side of the blower, and configured to promote mixing of the outside air and the washing tank inside air by the blower. 2. The dishwasher according to claim 1, wherein the drying means includes a recovered water discharge portion for discharging the recovered water from the drying means on the downstream side of the blower. The air volume distribution unit has an opening degree by wind pressure at least in the cleaning tank internal air passage communicating with the mixing section via the cleaning tank and at least the cleaning tank internal air passage of the outside air passage for sending the cooling external air to the mixing section. A dishwasher according to claim 1 or 2, comprising a damper that changes. The air volume distribution unit includes a valve body unit that opens and closes a passage in at least one of a cleaning tank internal air passage communicating with the mixing unit via the cleaning tank and an external air passage directly sending outside air to the mixing unit. Item 4. The dishwasher according to any one of Items 1 to 3. The drying means is provided with an ejector section that sucks at least one of the outside air and the cleaning tank inside air by the suction fluid force generated by the operation of the blower, and integrates the mixing section and the air volume distribution section into the ejector section. The dishwasher according to any one of claims 1 to 4. 6. The ejector section according to claim 5, wherein the gap between the nozzle section for flowing the cleaning tank inside air and the throat section for flowing the outside air can be changed, and the air volume ratio between the cleaning tank inside air and the outside air is variable. Dishwasher. The dishwasher according to claim 6, wherein the gap size is increased at the start of the drying operation to increase the air volume ratio of the outside air, and is decreased with the progress of the drying operation to decrease the air volume ratio of the outside air.

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