Dish washing / drying machine, method for controlling the same, and controlling program

Abstract

To provide a dish washing / drying machine suppressing temperature-humidity of exhaust air in a drying process to prevent generation of dew condensation, and capable of improving drying efficiency, a method for controlling the dish washing / drying machine, and a controlling program.SOLUTION: A dish washing / drying machine 1 includes a washing tank 3, a rinse agent supply part 30, a blower fan 17a, a blower heater 17b, and an operation control part 21a. The washing tank 3 houses tableware to be washed. The rinse agent supply part 30 charges a rinse agent into the washing tank 3. The blower fan 17a supplies air into the inner part of the washing tank 3 to dry table wear. The blower heater 17b heats air to be supplied to the inner part of the washing tank 3 by the blower fan 17a. The operation control part 21a sequentially executes a washing process and a drying process in a washing operation, drives the blower heater 17b in the drying process to increase the rotation frequency of the blower fan 17a, determines whether or not the rinse agent is charged, and changes a sequence of the drying process depending on presence / absence of the charge of the rinse agent.SELECTED DRAWING: Figure 10

Description

[Technical field]

[0001] The present disclosure relates to a dishwasher / dryer that washes and dries dishes and the like stored in a washing tub, and a control method and control program for the same. [Background technology]

[0002] 2. Description of the Related Art In recent years, dishwashers that automatically wash dishes and the like placed in a washing tub provided in a main body have come into use. For example, Patent Document 1 discloses a dishwasher comprising a main body attached to an attachment portion, a washing tub housed inside the main body for housing dishes, a washing device for washing the dishes housed in the washing tub, and a rinsing unit for supplying rinse to the washing tub during washing by the washing device, the rinsing unit having a rinse tank for storing rinse and a rinse pump for transporting the rinse stored in the rinse tank to the washing tub. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-166125 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, the above-mentioned conventional dishwashing machines have the following problems. That is, in the dishwasher disclosed in the above publication, after the washing process in which the dishes are washed, in the drying process in which the dishes are dried, in order to provide a stable supply of rinse, a rinse pump is used to supply rinse to the washing tank. However, in this configuration, if the humidity and temperature of the exhaust air discharged to the outside of the chamber during the drying process remain high, condensation may occur around the exhaust port. On the other hand, if the temperature of the air heated in the drying process is reduced in order to prevent condensation from occurring, the drying efficiency may decrease.

[0005] An object of the present disclosure is to provide a dishwasher / dryer that can suppress the temperature and humidity of exhaust gas during the drying process to prevent condensation from occurring and improve drying efficiency, as well as a control method and control program for the same. [Means for solving the problem]

[0006] The dishwasher and dryer according to the present disclosure includes a washing tub, a rinse agent supplying section, a drying fan, a drying heater, and a control section. The washing tub contains tableware to be washed. The rinse agent supplying section supplies rinse agent to the washing tub. The drying fan supplies air to the inside of the washing tub to dry the tableware. The drying heater heats the air supplied by the drying fan to the inside of the washing tub. The control section sequentially executes a washing step and a drying step in a washing operation for washing tableware contained in the washing tub, and drives the drying heater and increases the rotation speed of the drying fan in the drying step. Furthermore, the control section determines whether rinse agent has been added, and changes the sequence of the drying step depending on whether rinse agent has been added or not. Effect of the Invention

[0007] According to the dishwasher / dryer of the present disclosure, the temperature and humidity of the exhaust gas can be suppressed during the drying process, thereby preventing the occurrence of condensation and improving the drying efficiency. [Brief description of the drawings]

[0008] [Figure 1] 1 is a schematic perspective view showing a state in which the opening / closing door has been rotated to open the dishwasher / dryer according to one embodiment of the present disclosure, with part of the dish basket (internal parts) exposed through the opening. FIG. [Diagram 2] 2 is a schematic perspective view showing the dishwasher / dryer of FIG. 1 with the door open relative to the housing and the dish basket pulled out. [Diagram 3] 2 is a schematic perspective view showing the internal configuration of the dishwasher-dryer of FIG. 1 with the lower dish basket removed. [Figure 4]Control block diagram of the dishwasher in Figure 1. [Diagram 5] 2 is a front view showing the configuration of the inner side of the opening and closing door of the dishwasher-dryer of FIG. 1. [Figure 6A] 6 is a perspective view showing the configuration of a rinse agent supplying unit provided on the inner surface side of the opening and closing door shown in FIG. 5. [Figure 6B] 6B is a perspective view showing a state in which a cover included in the rinse agent supplying unit in FIG. 6A is open. FIG. [Figure 7] FIG. 8C is an enlarged front view showing the configuration of the rinse agent supplying unit shown in FIGS. 8A and 8B. [Figure 8] 8 is a rear view showing the configuration of the rear side (the side enclosed in the opening and closing door) of the rinse agent supplying unit in FIG. 7. [Figure 9] 9 is an enlarged perspective view showing a state in which a cover of the rinse agent supplying unit in FIG. 8 is open. FIG. [Figure 10] 5 is a graph showing the relationship between the number of rotations of the drying fan and the timing of turning on the power of the drying heater and the passage of time in the drying process performed by the dishwasher-dryer of FIG. 1. [Figure 11] 4 is a flowchart showing a process flow for determining the presence or absence of a rinse aid in the dishwasher of FIG. 1. [Figure 12] 13 is a graph showing the relationship between the rotation speed of the drying fan and the timing of turning on the drying heater and the passage of time in a drying process performed by a dishwasher-dryer according to another embodiment of the present disclosure. [Figure 13] 13 is a graph showing the relationship between the rotation speed of a drying fan and the passage of time in a drying process performed by a dishwasher / dryer according to still another embodiment of the present disclosure. [Figure 14] 13 is a graph showing the relationship between the rotation speed of the drying fan and the timing of turning on the drying heater and the passage of time in a drying process performed by a dishwasher-dryer according to still another embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, the embodiments will be described in detail with reference to the drawings as appropriate. However, more detailed explanation than necessary may be omitted. For example, detailed explanation of already well-known matters or duplicate explanation of substantially the same configuration may be omitted. This is to avoid the following explanation becoming unnecessarily redundant and to facilitate understanding by those skilled in the art. The applicant provides the accompanying drawings and the following description so that those skilled in the art can fully understand the present disclosure, and does not intend for them to limit the subject matter described in the claims.

[0010] (Embodiment 1) A dishwasher / dryer 1 according to an embodiment of the present disclosure will be described below with reference to Figs. 1 to 11. The dishwasher 1 according to this embodiment is a built-in dishwasher that is incorporated into, for example, a system kitchen and washes dishes (not shown) and other items to be washed in an internal washing tub 3. The dishwasher 1 also supplies detergent and rinse agent (described below) into the washing tub 3 and performs a washing process, a rinsing process, a drying process, and other processes.

[0011] In addition, the tableware washed by the dishwasher 1 includes, for example, containers used for eating (plates, bowls, etc.), cutlery (chopsticks, spoons, forks, knives, etc.), and cooking utensils used for cooking, such as knives, cutting boards, frying pans, pots, etc. (1) Configuration of Dishwasher-Dryer 1 As shown in Figures 1 and 2, the dishwasher 1 comprises a housing 2, a washing tub 3 provided inside the housing 2 for containing tableware (items to be washed), and a pivotable opening / closing door 4 for opening and closing an opening 5 located on the front side of the washing tub 3.

[0012] 1 and 2, in this embodiment, the front direction will be described as the direction in which dish basket (internal part) 9 is pulled out of washing tub 3 or the direction toward opening 5, and the rear direction will be described as the direction in which dish basket 9 is stored in washing tub 3 or the direction toward rear surface 2d. In the following description, the top surface 2b side of washing tub 3 of the dishwasher-dryer will be referred to as the top, the bottom surface 2c side as the bottom, and further, the right side as viewed from the front of opening / closing door 4 will be referred to as the right side and the left side as the left side.

[0013] As shown in Figs. 1 and 2, the housing 2 is a box-shaped member having a substantially rectangular parallelepiped shape, and is provided therein with a washing tank 3 in which tableware is placed, a tableware basket 9, and the like. 1 and 2, washing tub 3 is provided inside housing 2 for washing tableware set in dish basket 9, and has an opening 5 on the front. Washing tub 3 is also provided with dish basket 9 for storing tableware, a rotating washing nozzle 10, a top washing nozzle 11, a middle washing nozzle 19, etc.

[0014] 1 and 2, the opening / closing door 4 has a handle 41, a flat portion 42 provided on the front surface, a display operation portion 43, and a display portion 44. The opening / closing door 4 rotates about a rotation axis (not shown) to open and close the opening 5 relative to the housing 2. Moreover, the open / close state of the door 4 is detected by a door open / close switch 18 (see FIG. 4).

[0015] The handle 41 is a groove portion that is gripped by a user when opening and closing the opening and closing door 4 relative to the housing 2, and is provided above the flat portion . The flat surface portion 42 is covered with a surface material, etc. On the top surface of the opening and closing door 4, a display operation portion 43, a display portion 44, etc. are arranged. The display operation unit 43 receives operation inputs from the user, and inputs such as the washing course of the dishwasher / dryer 1 and power on / off are performed.

[0016] Display unit 44 displays information such as the status of washing and drying by dishwasher / dryer 1, the operating status, time, settings input to display operation unit 43, and the like. Opening 5 is opened and closed by opening / closing door 4 which is rotatably attached to housing 2. When opening 5 is open, dish basket 9 is placed in washing tub 3 so as to be removable in the front-rear direction, as shown in FIG.

[0017] Tableware to be washed or that has already been washed is placed in the dish basket 9. To take the dish basket 9 in or out, a user opens the door 4 and then holds the handle 9a and pulls it forward, as shown in FIG. In Figures 1 to 3, the dish baskets 9 are shown as having three tiers, with an upper tier, a middle tier, and a lower tier, but it may also be configured with two tiers, an upper tier and a lower tier, or with four or more tiers.

[0018] Furthermore, the dishwasher 1 is equipped with a water supply section (not shown) that supplies water to the washing tub 3, a washing pump 13a (see Figure 4), a water supply path 12 from the washing pump 13a to the top washing nozzle 11, a water supply path from the washing pump 13a to the middle washing nozzle 19, a washing path (not shown) from the washing pump 13a to the rotating washing nozzle 10, and a water distribution mechanism including a water distribution motor 15a (see Figure 4) that distributes washing water to the washing path to the rotating washing nozzle 10 and the water supply path 12 to the top washing nozzle 11.

[0019] The water supply unit includes a water supply hose (not shown), a water supply valve 16a (see FIG. 4), etc. Specifically, first, the control device 20 shown in FIG. 4 controls the water supply valve 16a to supply cleaning water such as tap water from, for example, a branch water faucet in a system kitchen to a water supply path such as a water supply hose. The supplied cleaning water is supplied to the cleaning tank 3 through the water supply path in the amount required. At this time, the cleaning water supplied into the cleaning tank 3 may be heated by a cleaning heater 14 (see FIG. 4) and circulated in the form of hot water.

[0020] The washing pump 13a pressure-feeds washing water to the rotary washing nozzle 10 and the top surface washing nozzle 11. When multiple rotary washing nozzles 10 are provided, the washing water is pressure-feed from the washing pump 13a to each rotary washing nozzle 10 and / or top surface washing nozzle 11 via a water distribution mechanism including a water distribution motor 15a. The rotating cleaning nozzle 10 is installed, for example, below the dish basket 9, as shown in Figure 3, and rotates due to the reaction force of the pressurized cleaning water, spraying cleaning water from below toward the dishes placed in the dish basket 9.

[0021] In addition, the rotating cleaning nozzle 10 may be a type of nozzle that sprays cleaning water toward the tableware from a cleaning hole provided in a cleaning path (not shown) provided on a side surface (side surface 2a other than the top surface) inside the cleaning tank 3. 3, the top washing nozzle 11 is installed above the dish basket 9, that is, on the ceiling surface of the washing tub 3. Like the rotating washing nozzle 10, the top washing nozzle 11 sprays washing water from above toward the dishes placed in the dish basket 9 while rotating due to the reaction force of the pressurized washing water.

[0022] The middle-level washing nozzle 19 is installed on the bottom surface of the middle-level dish basket 9, for example, as shown in Fig. 2. Like the rotating washing nozzle 10, the middle-level washing nozzle 19 rotates due to the reaction force of the pressurized washing water and sprays washing water from below toward the tableware placed in the middle-level dish basket 9 and from above toward the tableware placed in the lower-level dish basket 9. That is, the washing pump 13a pressurizes the washing water stored in the washing tank 3 and supplies it to the rotating washing nozzle 10, the top washing nozzle 11, and the middle washing nozzle 19. The washing water sprayed from the rotating washing nozzle 10 and the top washing nozzle 11 removes dirt adhering to the tableware and washes the tableware. The washing water includes a washing liquid containing detergent that is sprayed onto the objects to be washed, and a rinsing liquid containing a rinse agent R1 that is added when rinsing the objects to be washed.

[0023] Furthermore, the suction side of the washing pump 13a is connected to the drain outlet 7, and the washing water supplied into the washing tank 3 is circulated through the washing path and the water supply path 12, and the washing water is sprayed from the rotating washing nozzle 10 and the top surface washing nozzle 11. Then, the dishes are washed with the sprayed washing water. As shown in FIG. 3, the drain outlet 7 is provided at the bottom of the cleaning tank 3.

[0024] A residue filter (not shown) is detachably provided at drain outlet 7 and collects residue washed and removed from the object to be washed. Drain pump 13b (see FIG. 4) drains the washing water from within washing tank 3 after the washing process is completed. In the cleaning process, the cleaning heater 14 (see FIG. 4) heats the cleaning water stored in the cleaning tank 3. The cleaning heater 14 is disposed near the bottom of the cleaning tank 3. Note that the cleaning heater 14 may not be disposed near the bottom of the cleaning tank 3, but may be built into the cleaning pump 13a.

[0025] The washing pump 13a may also function as a drainage pump by reversing the rotation direction of the motor during circulation, to discharge the washing water from the washing tank 3. In this case, by making the washing pump 13a also function as a drainage pump, the drainage pump can be made unnecessary. Also, a drain valve may be provided instead of the drain pump 13b. In this case, the cleaning water can be drained from the cleaning tank 3 by natural fall due to gravity when the drain valve is opened.

[0026] Here, the dishwasher 1 is provided with a drainage path (not shown) for draining wash water from the washing tub 3. The drainage path is configured to include a drain outlet 7, a drain pump 13b, a drain hose (not shown), and the like. When the dish washing and rinsing processes are completed, the drain pump 13b is driven, and the wash water passes through the drain outlet 7 and is then drained to the outside via the drain hose.

[0027] Furthermore, the dishwasher / dryer 1 of this embodiment dries the washed dishes. That is, as shown in FIG. 4, dishwasher / dryer 1 of this embodiment includes blower fan (drying fan) 17a and blower heater (drying heater) 17b. The blower fan 17a and the blower heater 17b are installed in a drying air duct that communicates with an air supply port located at the bottom of the side wall of the washing tank 3, and take in air from an air intake port (not shown) and supply it into the washing tank 3 to dry the washed tableware.

[0028] That is, when the blower fan 17a is driven, the tubular blower heater 17b is also driven, so that air taken in from the air inlet and heated in the drying air duct is blown onto the tableware in the washing tub 3. A first exhaust port (not shown) is provided at the top of the side wall of the washing tank 3, and an exhaust path is installed outside the side surface 2a of the washing tank 3. The air supplied into the washing tank 3 from the air supply port contains moisture from within the washing tank 3, passes through the exhaust path from the first exhaust port, and is exhausted to the outside of the machine from a second exhaust port (not shown). In this way, the blowing of heated air and the exhaust of humid air can promote drying of the tableware in the washing tank 3.

[0029] In the dishwasher / dryer 1 of this embodiment, the control device 20 controls each part provided inside the housing 2, as shown in FIG. 4, the control device 20 includes an I / F (interface) 20a, a processor 21, and a memory 22, and is provided below the cleaning tank 3 as a control board. In the control device 20, the processor 21 reads a control program 22a stored in the memory 22 and executes a cleaning operation and a drying operation.

[0030] More specifically, the control device 20 carries out a washing process for washing the tableware, a rinsing process for rinsing the detergent and residue adhering to the tableware, and a drying process for drying the washed tableware. During the washing and rinsing processes, the control device 20 controls the washing pump 13a, washing heater 14, drain pump 13b, water distribution motor 15a, residual water motor 15b, water supply valve 16a, flow meter 16b, etc. shown in Figure 4 to wash the dishes in the washing tank 3.

[0031] In addition, in the drying step, the control device 20 controls the blower fan 17a and the blower heater 17b shown in FIG. 4 to dry the washed tableware. The processor 21 is, for example, a CPU (Central Processing Unit) or an MPC (Micro Processing Unit), etc. The processor 21 reads out and executes a control program 22a stored in the memory 22, thereby functioning as an operation control unit (control unit) 21a, a display operation control unit 21b, and a maintenance unit 21c.

[0032] The operation control unit 21a controls various devices connected to the control device 20 to control the washing operation of the dishwasher / dryer 1. The washing operation controlled by the operation control unit 21a may be an operation in which a washing process, a rinsing process, a drying process, and a storage process are performed consecutively in this order, or an operation in which only any one of the processes is performed, or an operation in which any two or more of the processes are performed in any order.

[0033] Here, the storage step is a step of storing tableware in the washing tank 3 when the opening / closing door 4 is in a closed state. The storage step includes at least one of a dry storage step and a sterilization storage step. The dry storage step is a step of drying and storing the tableware by the blower fan 17a. The sterilization storage step is a step of sending charged fine particle water or ions generated by an electrostatic atomization device (not shown) into the washing tank 3 to sterilize and store the tableware.

[0034] The operation control unit 21a can execute water-saving and energy-saving operation during the washing operation. The water-saving and energy-saving operation is an operation for saving water and energy during the washing operation. A washing operation accompanied by the water-saving and energy-saving operation can save water and reduce the amount of power consumption more than a washing operation without the water-saving and energy-saving operation. The operation control unit 21a judges whether or not to execute the water-saving and energy-saving operation during the washing operation based on the temperature change per unit time detected by the water temperature detection unit 37 and the detection signal of the turbidity detection sensor (not shown). Then, when the operation control unit 21a judges to execute the water-saving and energy-saving operation, it executes the water-saving and energy-saving operation during the washing operation.

[0035] The control performed by the operation control unit 21a will be described in detail later. The display operation control unit 21b causes various pieces of information to be displayed on the display operation unit 43. In addition, the display operation control unit 21b accepts various operations from the user via the display operation unit 43. The maintenance unit 21c performs a maintenance operation to clean the detergent supply passage, which supplies the liquid or solid detergent stored in the detergent supply unit 39 into the cleaning tub 3, with the liquid stored in the detergent supply unit 39.

[0036] In the maintenance operation, the liquid stored in detergent supply unit 39 is, for example, water with citric acid dissolved therein at 40° C. Note that the liquid stored in detergent supply unit 39 may be water with citric acid dissolved therein at 40° C. or less, water with citric acid dissolved therein at 40° C. or more, water without citric acid dissolved therein, or water with a component other than citric acid dissolved therein.

[0037] The memory 22 is a storage device that stores programs, various data, and the like, and stores the control program 22a and various data processed by the processor 21. The memory 22 has a non-volatile storage area. Note that the memory 22 may have a volatile storage area and constitute a work area for the processor 21. The I / F 20a has communication hardware that complies with a predetermined communication standard, such as a connector, a communication circuit, etc. As shown in Fig. 4, the I / F 20a is connected to the wash pump 13a, the drain pump 13b, the wash heater 14, the water distribution motor 15a, the remaining water motor 15b, the water supply valve 16a, the flow meter 16b, the blower fan 17a, the blower heater 17b, the cooling fan 17c, the door opening / closing switch 18, the display operation unit 43, the solenoid valve 36a, the water temperature detection unit 37, and the rinse agent remaining amount detection unit 38, and communicates with these devices.

[0038] (2) Configuration of Rinse Agent Supply Unit 30 The dishwasher / dryer 1 of this embodiment includes a rinse agent supply section 30 that supplies rinse agent R1 (see FIG. 8) to the washing tub 3, as shown in FIG. The rinse aid R1 is composed of a component different from the detergent supplied from the detergent supply unit 39 into the washing tank 3, and contains, for example, a dissolved hydrophilic component that is supplied when the pH of the washing water drops during the rinsing process. By adding the rinse aid R1 to the washing water, it is possible to improve the drainage of the surface of the tableware, improve the drying efficiency, and reduce power consumption during the drying process.

[0039] 5, the rinse agent supply unit 30 is provided adjacent to the detergent supply unit 39 in the same housing as the detergent supply unit 39, which supplies the detergent used in the cleaning process into the cleaning tank 3. The rinse agent supply unit 30, together with the detergent supply unit 39, is provided in a substantially central portion of the inner surface 4b of the opening / closing door 4 on the cleaning tank 3 side. As shown in FIGS. 6A and 6B, the rinse agent supply unit 30 has an opening 31a for refilling the rinse agent R1, an input port 31b for inputting an amount of rinse agent R1 (see FIG. 8) for one cleaning into the cleaning tank 3, and a lid 32 for closing the opening 31a.

[0040] The opening 31a is an opening for refilling the rinse agent R1 stored in a storage tank 35 (see FIG. 8) provided inside the rinse agent supply unit 30, and is in communication with the storage tank 35. The opening 31a is closed when the lid 32 is closed (see FIG. 6A), and is open when the lid 32 is rotated towards the cleaning tank 3 and opened (see FIG. 6B). That is, when refilling the storage tank with the rinse agent R1, the lid 32 is opened to open the opening 31a, and the rinse agent R1 is refilled into the storage tank through the opening 31a.

[0041] On the other hand, in the above-mentioned cleaning process, rinsing process, drying process, etc., the opening 31a is closed by the lid 32. This makes it possible to prevent cleaning water, contaminants, etc. from entering the inside of the rinse agent supply part 30 (the supply path of the rinse agent R1, the storage tank 35, the input tank 36, etc.) through the opening 31a during the cleaning process, etc. As shown in FIG. 7, the opening 31a is provided above the rinse agent supplying part 30 when the opening / closing door 4 is closed.

[0042] As shown in FIG. 7, when the opening / closing door 4 is closed, the supply port 31b is provided below the opening 31a in the rinse agent supply part 30, and supplies one dose of rinse agent R1a (see FIG. 8) into the cleaning tank 3. Here, one dose of rinse agent R1a refers to the rinse agent stored in the input tank 36 from the storage tank 35 shown in FIG. 8 when the opening and closing door 4 is opened and closed once.

[0043] That is, when the opening / closing door 4 is opened from a closed state, the upper side in Fig. 8 faces diagonally downward, and a predetermined amount of rinse agent R1a moves from the storage tank 35 to the input tank 36 in the rinse agent supplying part 30. When the opening / closing door 4 is closed from an open state, the up-down relationship shown in Fig. 8 is restored, and a predetermined amount of rinse agent R1a is held in the input tank 36 in the rinse agent supplying part 30.

[0044] The rinse agent R1 stored in the input tank 36 may be in an amount larger than the amount required for one cleaning operation. In this case, the amount of rinse agent R1 input to the cleaning tank 3 can be adjusted by controlling the number of times and duration for which the solenoid valve 36a is opened and closed. At this time, the input tank 36 is sealed by a seal portion 36b that is opened and closed via a solenoid valve 36a. Then, for example, when the water temperature detection portion 37 described above detects that the temperature of the wash water has reached a predetermined temperature (e.g., 40°C), the control device 20 controls the solenoid valve 36a to release the sealed state by the seal portion 36b.

[0045] As a result, the amount of rinse agent R1a stored in the input tank 36 for one use moves by gravity along the direction of the arrow shown in FIG. 8 to the communication part 36c that communicates with the input port 31b. As a result, one dose of rinse agent R1a is supplied by gravity into the cleaning tank 3 through the inlet 31b and the gap near the lower end of the lid 32. 8, the amount of rinse agent R1 stored in the storage tank 35 is detected by a rinse agent remaining amount detection unit 38 using a float member 38a floating on the rinse agent R1. As a result, when the amount of rinse agent R1 stored in the storage tank 35 decreases, a warning is displayed on the display unit 44 or the like to inform the user that rinse agent R1 has run out, and the user is prompted to refill the rinse agent R1.

[0046] In addition, such a warning when the rinse has run out may be combined with control to display the fact that the rinse has run out on the display unit 44 or control to notify the user by emitting a warning sound. As described above, the lid part 32 can be opened and closed relative to the opening 31a provided in the main body of the rinse agent supplying part 30, and is provided in a state where it can rotate about the rotation shaft 33 provided on both side surfaces at the lower end part as shown in Fig. 9. The lid part 32 has a plate-shaped main body part 32a, an elastic ring 32b, a locked part 32c, and a lower end surface 32d.

[0047] The plate-shaped main body 32a rotates about a rotation shaft 33, and covers the opening 31a and the insertion port 31b when the lid 32 is closed. The elastic ring 32b is provided on the side facing the opening 31a near the end of the main body 32a opposite to the rotating shaft 33, and elastically deforms in contact with the outer periphery of the opening 31a when the lid 32 is closed. As a result, the opening 31a is closed from the cleaning tank 3 side when the lid 32 is closed.

[0048] The locked portion 32c is provided at the end of the main body 32a opposite the rotation shaft 33, and is locked to a locking portion 31c provided above the opening 31a. This allows the upper end of the main body portion 32a to be held so that the lid portion 32 does not open when the lid portion 32 is closed. <Control of the blower fan 17a and the blower heater 17b by the operation control unit 21a> In the dishwasher / dryer 1 of this embodiment, the operation control unit 21a sequentially executes a washing process and a drying process during the washing operation to wash the tableware contained in the washing tub 3, and in the drying process, drives the blower heater 17b and the blower fan 17a to increase the rotation speed, determines whether or not rinse agent R1 has been added, and changes the sequence of the drying process depending on whether or not rinse agent R1 has been added.

[0049] Specifically, in the drying step after the washing operation, the operation control unit 21a controls the blower fan 17a so as to increase the rotation speed of the blower fan 17a stepwise over time, as shown in FIG. This makes it possible to suppress the discharge of exhaust air at high temperature and humidity, compared to a control that rapidly increases the rotation speed of the blower fan 17a, and also makes it possible to prevent condensation on the floor, cabinet, etc. due to high-humidity exhaust air.

[0050] Then, as shown in FIG. 10, the operation control unit 21a controls the blower heater (drying heater) 17b to change the timing of turning the blower heater (drying heater) 17b from OFF to ON depending on whether or not the rinse agent R1 has been added from the rinse agent supply unit 30 to the cleaning tank 3 during the rinsing process. That is, as shown in FIG. 10, when the operation control unit 21a determines that the rinse agent R1 has been added to the cleaning tank 3 (rinse agent present), it controls the blower heater 17b to be turned ON at an earlier timing than when the rinse agent R1 has not been added (rinse agent not present).

[0051] This makes it possible to further improve the drying efficiency when the rinse agent R1 is added to the cleaning tank 3. Furthermore, the operation control unit 21a determines whether or not the rinse agent R1 has been added to the cleaning tank 3, and if it determines that the rinse agent R1 has been added, controls the rotation speed of the blower fan 17a so that the maximum rotation speed is reached in a shorter time than if the rinse agent R1 had not been added, as shown in FIG. 10.

[0052] This makes it possible to further shorten the drying time when the rinse agent R1 is added to the cleaning tank 3. Here, when the rinse agent R1 is added, the time when the blower fan 17a starts to operate is t0, the timing when the rotation speed of the blower fan 17a reaches the maximum rotation speed is t1, and the timing when the blower heater 17b turns ON is t3. In this embodiment, the operation control unit 21a controls the time so that t1 occurs after t3.

[0053] As a result, the rotation speed of the blower fan 17a reaches the maximum rotation speed after the blower heater 17b is turned on. Therefore, by turning on the blower heater 17b earlier, the time for blowing hot air is increased, and the drying performance can be improved. On the other hand, when no rinse agent R1 is added, the time when the blower fan 17a starts to operate is t0, the timing when the rotation speed of the blower fan 17a reaches the maximum rotation speed is t2, and the timing when the blower heater 17b turns ON is t4. In this embodiment, the operation control unit 21a controls the time so that t2 occurs after t4.

[0054] As a result, the rotation speed of the blower fan 17a reaches the maximum rotation speed after the blower heater 17b is turned on. Therefore, as in the case where a rinse aid is used, by turning on the blower heater 17b earlier, the time for blowing hot air is increased, thereby improving the drying performance. The time t0-t1 at which the rotation speed of the blower fan 17a reaches the maximum rotation speed when the rinse agent R1 is added is set to be shorter than the time t0-t2 at which the rotation speed of the blower fan 17a reaches the maximum rotation speed when the rinse agent R1 is not added.

[0055] Furthermore, the timing t3 at which the air heater 17b is turned on when the rinse agent R1 has been dispensed is set to come before the timing t4 at which the air heater 17b is turned on when the rinse agent R1 has not been dispensed. In the dishwasher / dryer 1 of this embodiment, regardless of whether rinse agent R1 has been dispensed from the rinse agent supply unit 30 to the cleaning tub 3, the operation control unit 21a starts driving the blower fan 17a at the same timing (t0) when the drying process is started.

[0056] However, for example, when it is determined that the rinse agent R1 has not been added to the cleaning tank 3, the ON timing t'0 of the blower fan 17a may be controlled to be later than the ON timing t0 when the rinse agent R1 has been added. This prevents condensation from forming around the exhaust path without immediately exhausting high-temperature, high-humidity indoor air.

[0057] Therefore, the amount by which the timing for turning on the blower fan 17a is delayed (the time the fan is not rotated) can be set to be short when rinse aid is dispensed and long when rinse aid is not dispensed. As a result, when no rinse aid is dispensed, the blower fan 17a is not rotated for a long period of time, thereby suppressing the occurrence of condensation.

[0058] Whether or not the rinse agent R1 has been added to the cleaning tank 3 is determined by a rinse agent remaining amount detector 38 shown in FIG. 4, and the determination result is transmitted to the operation controller 21a. As shown in FIG. 11, the rinse agent remaining amount detection unit 38 determines whether or not rinse agent R1 has been added to the cleaning tank 3 by detecting a change in the position of the float member 38a in addition to setting the addition of rinse agent R1, and determines that rinse agent R1 has been added when it is determined that rinse agent R1 is stored in the storage tank 35 that stores the rinse agent R1.

[0059] Specifically, the rinse agent remaining amount detection unit 38 determines whether or not rinse agent R1 remains in the storage tank 35 of the rinse agent supply unit 30, according to the flow chart shown in FIG. 11, first, in step S11, the rinse agent remaining amount detection unit 38 checks whether the setting is "rinse agent present." If the setting is "rinse agent present," the process proceeds to step S12, and if not, the process proceeds to step S15.

[0060] Next, in step S12, because it was determined in step S11 that the setting was "rinse agent present," the rinse agent remaining amount detection unit 38 uses the float member 38a to determine whether or not there is no rinse agent R1 in the storage tank 35 of the rinse agent supply unit 30. If it is determined that there is no rinse agent R1, the process proceeds to step S13, and if it is determined that rinse agent R1 is present, the process proceeds to step S14.

[0061] Next, in step S13, since it was determined in step S12 that there is no rinse agent R1, the rinse agent remaining amount detection unit 38 determines whether or not it has detected the absence of rinse agent R1 (out of rinse) for the first time. If it is the first time that the rinse agent has run out, the process proceeds to step S14, and if it is the second or more times, the process proceeds to step S15. Next, in step S14, since it was determined in step S12 that there was no rinse aid R1 or it was determined in step S13 that the rinse out detection was the first time, a "rinse aid present" sequence is performed and operation is terminated.

[0062] As a result, even if, for example, the accuracy of detecting the remaining amount of rinse agent R1 using a float member 38a floating on the rinse agent R1 stored in the storage tank 35 is low, it is possible to determine that there is a high possibility that one use's worth of rinse agent R1 remains in the storage tank 35 even when it is detected that the rinse agent has run out, and to carry out one operation. On the other hand, in step S15, because it was determined in step S11 that the setting was made without rinse agent, or because it was determined in step S13 that the rinse out state was detected for the second or more times, a sequence without rinse agent is performed to operate without rinse agent R1.

[0063] As a result, if the detection of out of rinse agent is made for the second or subsequent times, there is a risk that not enough rinse agent R1 for one use remains in the storage tank 35. Therefore, by performing a sequence without rinse agent on the second or subsequent detections, it is possible to avoid performing a sequence with rinse agent even when not enough rinse agent R1 has been added. As described above, in the dishwasher 1 of this embodiment, even if it is determined that rinse agent R1 is not stored in the storage tank 35 that stores rinse agent R1 inside the rinse agent supply unit 30, if the determination that rinse agent R1 is not stored occurs within a predetermined number of times (once in this embodiment), it is determined that rinse agent R1 has been added.

[0064] As a result, even if, for example, a method of detecting the remaining amount of rinse agent R1 using a float member 38a, which has low accuracy in detecting the remaining amount, is adopted, if the detection of the shortage of rinse agent is the first time, it can be determined that there is a high possibility that one use's worth of rinse agent R1 remains in the storage tank 35, and operation of the rinse agent-present sequence can be performed. In addition, in this embodiment, the operation control unit 21a determines whether or not the rinse agent R1 has been added to the inside of the cleaning tank 3, and if it determines that the rinse agent R1 has been added, the time of the drying process is made shorter than when the rinse agent R1 has not been added.

[0065] This allows the water remaining on the tableware to be sufficiently dried even if the drying process time is shortened due to the good drainage achieved when rinse aid R1 is added. Furthermore, even if rinse agent R1 is stored in the storage tank 35 inside the rinse agent supply unit 30, which stores the rinse agent R1, if the user selects a setting that does not use rinse agent R1, the operation control unit 21a determines that rinse agent R1 has not been added.

[0066] As a result, even if the rinse agent R1 is stored in the storage tank 35, if the setting selects no rinse agent, the sequence without rinse agent can be performed. <Main features> As shown in FIG. 4, the dishwasher 1 of this embodiment includes a washing tank 3, a rinse agent supply unit 30, a blower fan 17a, a blower heater 17b, and an operation control unit 21a. The washing tank 3 contains tableware to be washed. The rinse agent supply unit 30 supplies rinse agent to the washing tank 3. The blower fan 17a supplies air to the inside of the washing tank 3 to dry the tableware. The blower heater 17b heats the air supplied to the inside of the washing tank 3 by the blower fan 17a. In the washing operation for washing the tableware contained in the washing tank 3, the operation control unit 21a sequentially executes a washing step and a drying step, and in the drying step, as shown in FIG. 10, drives the blower heater 17b and increases the rotation speed of the blower fan 17a, determines whether or not rinse agent has been added, and changes the sequence of the drying step depending on whether or not rinse agent has been added.

[0067] As a result, in the drying process carried out after the cleaning process, both the blower fan 17a and the blower heater 17b are driven, and the sequence of the drying process is changed depending on the result of the determination as to whether or not rinse agent R1 has been added. For example, when it is determined that rinse agent R1 has been added to the cleaning tank 3, the blower fan 17a is controlled to reach the maximum rotation speed faster than when rinse agent R1 is not added. Alternatively, when it is determined that rinse agent R1 has been added to the cleaning tank 3, the blower heater 17b is controlled to be turned on earlier than when rinse agent R1 is not added.

[0068] As a result, the temperature and humidity of the exhaust gas can be controlled in the drying process, preventing the occurrence of condensation and improving the drying efficiency. (Embodiment 2) A dishwasher / dryer 101 according to another embodiment of the present disclosure will be described below with reference to FIG.

[0069] The dishwasher 101 according to this embodiment differs from the above-described embodiment 1 in that, taking into consideration that the improved drying efficiency due to the good drainage effect of rinse agent R1 cannot be achieved when rinse agent R1 is not added to the washing tub 3, the dishwasher 101 controls the blower fan 17a and the blower heater 17b so as not to lengthen the drying process time in the sequence without rinse agent.

[0070] That is, in the dishwasher / dryer 1 of this embodiment, as shown in FIG. 12, when the operation control unit 21a determines that, for example, rinse agent R1 has not been added to the washing tub 3, it controls the time it takes for the blower fan 17a to reach its maximum rotation speed so that it is shorter than when rinse agent R1 is present. Here, if it is determined that the rinse agent R1 has not been added to the cleaning tank 3, the effect of the rinse agent R1 cannot be obtained. Therefore, in this embodiment, the operation control unit 21a controls the blower fan 17a so as to shorten the time until the drying effect by the blower fan 17a is maximized.

[0071] As a result, even if rinse aid R1 has not been added to the washing tank 3, the blower fan 17a is controlled so that the maximum rotation speed is reached in a short time, thereby preventing the tableware from taking longer to dry than when rinse aid R1 has been added. In addition, in the dishwasher / dryer 1 of this embodiment, when it is determined that rinse agent R1 has not been added to the cleaning tub 3, as shown in FIG. 12, the operation control unit 21a controls the blower heater 17b so that the drying effect by the blower heater 17b can be obtained quickly.

[0072] Specifically, as shown in FIG. 12, when it is determined that the rinse agent R1 has not been added to the cleaning tank 3, the operation control unit 21a controls the blower heater 17b to be turned ON earlier than when the rinse agent R1 has been added. As a result, the air inside the washing tub 3 of the dishwasher 1 is heated to a high temperature more quickly than when rinse aid R1 is added, thereby improving the efficiency of drying the tableware.

[0073] Therefore, even if the rinse agent R1 is not dispensed, it is possible to avoid the drying time of the tableware becoming longer than when the rinse agent R1 is dispensed. Here, when rinse agent R1 is not added, the time when blower fan 17a starts to operate is T0, the timing when the rotation speed of blower fan 17a reaches the maximum rotation speed is T1, and the timing when blower heater 17b turns ON is T3. In this embodiment, the operation control unit 21a controls the time so that T1 occurs after T3.

[0074] As a result, the rotation speed of the blower fan 17a reaches the maximum rotation speed after the blower heater 17b is turned on. Therefore, by turning on the blower heater 17b earlier, the time for blowing hot air is increased, and the drying performance can be improved. On the other hand, when the rinse agent R1 is added, the time when the blower fan 17a starts to operate is T0, the timing when the rotation speed of the blower fan 17a reaches the maximum rotation speed is T2, and the timing when the blower heater 17b turns ON is T4. In this embodiment, the operation control unit 21a controls the time so that T2 occurs after T4.

[0075] As a result, the rotation speed of the blower fan 17a reaches the maximum rotation speed after the blower heater 17b is turned on. Therefore, as in the case where a rinse aid is used, by turning on the blower heater 17b earlier, the time for blowing hot air is increased, thereby improving the drying performance. The time T0-T1 at which the rotation speed of the blower fan 17a reaches the maximum rotation speed when the rinse agent R1 is not added is set to be shorter than the time T0-T2 at which the rotation speed of the blower fan 17a reaches the maximum rotation speed when the rinse agent R1 is added.

[0076] Furthermore, the timing T3 at which the air supply heater 17b is turned on when the rinse agent R1 has not been dispensed is set to come before the timing T4 at which the air supply heater 17b is turned on when the rinse agent R1 has been dispensed. In the dishwasher / dryer 1 of this embodiment, regardless of whether rinse agent R1 has been dispensed from the rinse agent supply unit 30 to the cleaning tub 3, the operation control unit 21a starts driving the blower fan 17a at the same timing (T0) when the drying process is started.

[0077] However, for example, when it is determined that the rinse agent R1 has been added to the cleaning tank 3, the ON timing T'0 of the blower fan 17a may be controlled to be later than the ON timing T0 when the rinse agent R1 is added. As a result, even if the rinse agent R1 is not dispensed, it is possible to prevent the drying time of the tableware from becoming longer than when the rinse agent R1 is dispensed.

[0078] <Main features> The dishwasher 101 of this embodiment includes a washing tank 3, a rinse agent supplying section 30, a blower fan 17a, and an operation control section 21a. The washing tank 3 contains tableware to be washed. The rinse agent supplying section 30 supplies rinse agent R1 to the washing tank 3. The blower fan 17a supplies air to the inside of the washing tank 3 to dry the tableware. The operation control section 21a sequentially executes a washing step and a drying step in a washing operation for washing tableware contained in the washing tank 3, and determines whether rinse agent R1 has been supplied into the washing tank 3 in the drying step. If it is determined that rinse agent R1 has not been supplied, the operation control section 21a controls the rotation speed of the blower fan 17a so that the maximum rotation speed is reached in a shorter time than when rinse agent R1 has been supplied, as shown in FIG. 12.

[0079] As a result, if the rinse agent R1 is not added to the cleaning tank 3, the effect of the rinse agent R1 cannot be obtained. Therefore, by shortening the time until the drying effect of the blower fan 17a is maximized, the drying efficiency can be improved. Therefore, even when rinse aid R1 is not added, by controlling blower fan 17a so as to quickly reach the maximum rotation speed, tableware can be dried in the same drying time as when rinse aid R1 is added.

[0080] [Other embodiments] Although one embodiment of the present disclosure has been described above, the present disclosure is not limited to the above embodiment, and various modifications are possible without departing from the gist of the disclosure. (A) In the above embodiment, the dishwasher / dryer 1 and the control method thereof are described as examples that realize the present disclosure. However, the present disclosure is not limited to this.

[0081] For example, the present disclosure may be realized as a control program that causes a computer to execute the above-described method for controlling a dishwasher / dryer. This control program is stored in a memory (storage unit) installed in the dishwasher, and the CPU reads the control program stored in the memory and causes the hardware to execute each step. More specifically, the CPU reads the control program and executes the above-mentioned washing process and drying process, thereby achieving the same effects as those described above.

[0082] The present disclosure may also be realized as a recording medium storing a control program for a dishwasher / dryer. (B) In the above-described first embodiment, an example has been described in which the operation control unit 21a controls the blower fan 17a so as to increase the rotation speed of the blower fan 17a stepwise in the drying process, as shown in Fig. 5. However, the present disclosure is not limited to this.

[0083] For example, as shown in FIG. 13, the operation control unit 21a may control the blower fan 17a in the drying process so that the rotation speed of the blower fan 17a is increased continuously, rather than stepwise. Even in this case, the same effects as those in the first embodiment can be obtained. (C) In the above-mentioned embodiment 1, an example has been described in which the operation control unit 21a determines whether or not the rinse agent R1 has been added to the cleaning tank 3, and when it is determined that the rinse agent R1 has been added, controls the rotation speed of the blower fan 17a so that the rotation speed reaches the maximum rotation speed in a shorter time than when the rinse agent R1 has been added. However, the present disclosure is not limited to this.

[0084] For example, the operation control unit may determine whether or not rinse agent has been added to the inside of the cleaning tank, and if it determines that rinse agent has not been added, it may control the rotation speed of the blower fan so that the maximum rotation speed is reached in a shorter time than if rinse agent has been added. In this case, since it is determined that the rinse agent is not supplied to the cleaning tank in the rinsing step, the effect of good water drainage due to the rinse agent cannot be obtained. Therefore, in order to avoid the drying step taking a long time even when the rinse agent is not supplied to the cleaning tank, the operation control unit controls the blower fan to reach the maximum rotation speed earlier than when the rinse agent is supplied to the cleaning tank.

[0085] This makes it possible to avoid a long drying time even when no rinse agent is supplied to the cleaning tank. (D) In the above-described first embodiment, an example has been described in which the operation control unit 21a determines whether or not the rinse agent R1 has been added to the cleaning tank 3, and when the rinse agent R1 has been added, starts driving the blower heater 17b at an earlier timing than when the rinse agent R1 has not been added, as shown in Fig. 5. However, the present disclosure is not limited to this.

[0086] For example, the operation control unit may determine whether or not a rinse agent has been added to the inside of the cleaning tank, and if the rinse agent has not been added, the operation of the drying heater may be controlled to start at an earlier timing than if the rinse agent has been added. In this case, since it is determined that the rinse agent is not being supplied to the cleaning tank during the rinsing process, the effect of good water drainage due to the rinse agent cannot be obtained. Therefore, in order to avoid the drying process taking a long time even when the rinse agent is not being supplied to the cleaning tank, the operation control unit controls the blower heater to turn on its drive earlier than when the rinse agent is being supplied to the cleaning tank.

[0087] This makes it possible to avoid a long drying time even when no rinse agent is supplied to the cleaning tank. (E) In the above embodiment 1, an example has been described in which, if the determination that the rinse agent R1 is not stored (rinse shortage determination) occurs once or less, it is determined that the rinse agent R1 can be dispensed, and a sequence with rinse agent is executed. However, the present disclosure is not limited to this.

[0088] For example, in cases where the accuracy of detecting the amount of rinse agent remaining in the storage tank using a float member or the like is low, or where a large amount of rinse agent remains even after out-of-rinse is detected due to external factors such as variation in the capacity of the rinse tank or variation in the amount of rinse added each time, control may be performed to perform the sequence with rinse agent until out-of-rinse is detected multiple times, such as the second, third, etc.

[0089] In addition, the control that allows a predetermined number of rinse agent to be dispensed after the rinse run out may be set by the user to any number of times as appropriate, depending on the amount of rinse agent used, the amount of dishes, etc. (F) In the above-described first embodiment, the control for changing the sequence in the drying process depending on whether the rinse agent R1 has been added to the cleaning tank 3 is described by taking as an example the control for shortening the time until the maximum rotation speed of the blower fan 17a is reached and turning on the blower heater 17b early. However, the present disclosure is not limited to this.

[0090] For example, the sequence of the drying process that is changed depending on the presence or absence of a rinse aid may be configured to change other control contents, such as the time until the blower fan (drying fan) reaches its maximum rotation speed and the timing of turning on the blower heater (drying heater), as well as the setting of the rotation speed of the blower fan (e.g., changing the maximum rotation speed) and the temperature setting of the blower heater. For example, the timings of t1 to t4 may be shifted forward or backward according to the atmospheric temperature inside the chamber, which is divided into a plurality of stages. In this case, appropriate drying performance can be maintained regardless of the temperature inside the chamber.

[0091] (G) In the above embodiment, the dishwasher 1 is described as being equipped with a pivotable door 4 for opening and closing the opening 5 located in front of the washing tub 3. However, the present invention is not limited to this. For example, it may be a dishwasher with a pull-open door (a type in which the top surface is opened by pulling the front door forward).

[0092] In this case, the rinse agent supply unit that supplies the rinse agent can be appropriately changed to a suitable position on the inner surface of the opening and closing door. (H) In the above embodiment, a built-in dishwasher / dryer 1 that is installed in a system kitchen or the like has been described as an example. However, the present disclosure is not limited to this.

[0093] For example, the configuration of the present disclosure may be applied to a free-standing dishwasher that is installed on a kitchen countertop. (I) In the above embodiment, an example of control in which the timing for turning on the air blower heater is differentiated depending on whether or not a rinse aid is used has been described as shown in Fig. 10. However, the present invention is not limited to this.

[0094] For example, as shown in FIG. 14, the timing for turning on the blower heater shown in FIG. 10 may be controlled so that t4 and t3 are the same time, that is, the timing for turning on the blower heater may be fixed at t3 regardless of whether rinsing is performed or not. In this case, hot air can be blown from an early stage in the drying process without using a rinsing agent, thereby accelerating the drying.

[0095] <Additional Notes> The above description of the embodiments discloses the following techniques. (Technology 1) The dishwasher according to the present technology is a washing tub for containing tableware to be washed; a rinse agent supply unit that supplies a rinse agent to the cleaning tank; a drying fan that supplies air into the washing tub to dry the tableware; a drying heater that heats the air supplied to the inside of the cleaning tank by the drying fan; a control unit which sequentially executes a washing step and a drying step in a washing operation for washing tableware contained in the washing tub, and drives the drying heater and increases the rotation speed of the drying fan in the drying step; A dishwasher / dryer comprising: The control unit determines whether the rinse agent has been dispensed, and changes the sequence of the drying process depending on whether the rinse agent has been dispensed.

[0096] According to this configuration, the temperature and humidity of the exhaust gas can be suppressed in the drying process, thereby preventing the occurrence of condensation and improving the drying efficiency. (Technology 2) The control unit increases the rotation speed of the drying fan in a stepwise manner in the drying process. The dishwasher and dryer according to claim 1.

[0097] This configuration makes it possible to suppress the discharge of exhaust air with high temperature and humidity compared to control that rapidly increases the rotation speed of the drying fan, and also makes it possible to prevent condensation on the floor, cabinet, etc. due to high-humidity exhaust air. (Technology 3) The control unit continuously increases the rotation speed of the drying fan in the drying process. The dishwasher and dryer according to claim 1.

[0098] With this configuration, compared to control that suddenly increases the rotation speed of the drying fan, it is possible to exhaust the hot and humid air inside the cleaning tank in a gradual increase without over or underdoing it, making it possible to set a drying time that strikes a good balance between preventing condensation on the floor and cabinet and drying performance. (Technology 4) the control unit determines whether the rinse agent has been dispensed into the cleaning tank, and when it is determined that the rinse agent has been dispensed, controls the rotation speed of the drying fan so that the rotation speed reaches a maximum rotation speed in a shorter time than when the rinse agent has not been dispensed. A dishwasher and dryer according to any one of the preceding claims 1 to 3.

[0099] According to this configuration, in consideration of the effect of improving water drainage by the rinse agent, the drying time when the rinse agent is added to the cleaning tank can be further shortened. (Technology 5) the control unit determines whether the rinse agent has been dispensed into the cleaning tank, and when it is determined that the rinse agent has not been dispensed, controls the rotation speed of the drying fan so that the rotation speed reaches the maximum rotation speed in a shorter time than when the rinse agent has been dispensed. A dishwasher and dryer according to any one of the techniques 1 to 4.

[0100] According to this configuration, even if the rinse agent is not supplied to the cleaning tank, it is possible to prevent the drying time from becoming long. (Technology 6) the control unit determines whether the rinse agent has been added to the inside of the cleaning tank, and when the rinse agent has been added, starts driving the drying heater at an earlier timing than when the rinse agent has not been added. A dishwasher and dryer according to any one of the techniques 1 to 5.

[0101] According to this configuration, the drying efficiency can be further improved when a rinse agent is added to the cleaning tank. (Technology 7) the control unit determines whether the rinse agent has been dispensed into the cleaning tank, and when the rinse agent has not been dispensed, starts driving the drying heater at an earlier timing than when the rinse agent has been dispensed. A dishwasher and dryer according to any one of the preceding claims 1 to 6.

[0102] According to this configuration, even if the rinse agent is not supplied to the cleaning tank, it is possible to prevent the drying time from becoming long. (Technology 8) the rinse agent supply unit includes a storage tank for storing the rinse agent, and a float member provided in the storage tank and adapted to change position in response to fluctuations in the liquid level of the rinse agent. A dishwasher and dryer according to any one of the techniques 1 to 7.

[0103] According to this configuration, when the amount of rinse agent stored in the storage tank decreases, a display or an alarm sound, etc., indicates that the rinse agent has run out, and the user is prompted to replenish the rinse agent. (Technology 9) the control unit determines whether the rinse agent has been dispensed into the cleaning tank by detecting a change in a position of the float member in addition to setting the dispenser of the rinse agent, and determines that the rinse agent has been dispensed when it is determined that the rinse agent is stored in the storage tank that stores the rinse agent. A dishwasher and dryer as described in Technical 8.

[0104] According to this configuration, by detecting a change in the position of the float member, it is possible to easily determine whether or not any rinse agent remains in the storage tank. (Technology 10) Even when it is determined that the rinse agent is not stored in the storage tank that stores the rinse agent inside the rinse agent supply unit, if the determination that the rinse agent is not stored occurs within a predetermined number of times, the control unit determines that the rinse agent has been added. A dishwasher and dryer as described in Technical 8.

[0105] According to this configuration, even if, for example, a float member, which has low accuracy in detecting the remaining amount of rinse agent, is used, if the first detection of the shortage of rinse agent is made, it can be determined that there is a high possibility that one use's worth of rinse agent remains in the storage tank, and operation of the rinse agent present sequence can be performed. (Technology 11) the control unit determines whether the rinse agent has been dispensed into the cleaning tank, and when it is determined that the rinse agent has been dispensed, shortens the time of the drying step compared to when the rinse agent has not been dispensed. A dishwasher and dryer according to any one of claims 1 to 10.

[0106] According to this configuration, the water remaining on the tableware can be sufficiently dried even if the drying process time is shortened due to the good drainage achieved when a rinse agent is added. (Technology 12) the control unit determines that the rinse agent has not been dispensed when a user selects a setting that does not use the rinse agent even if the rinse agent is stored in the storage tank that stores the rinse agent inside the rinse agent supply unit. A dishwasher and dryer as described in Technical 8.

[0107] According to this configuration, it is possible to determine that the rinse aid has not been dispensed in accordance with the user's settings. [Industrial Applicability]

[0108] The dishwasher / dryer of the present disclosure has the effect of suppressing the temperature and humidity of the exhaust gas during the drying process, thereby preventing the occurrence of condensation, and improving drying efficiency, and therefore can be widely applied to various types of equipment that washes and dries dishes, etc. [Explanation of symbols]

[0109] 1 Dishwasher / dryer 2. Chassis 2a side 2b Top 2c Bottom 2d rear 3. Cleaning tank 4 Opening and closing doors 4b Inside 5 Opening 7 Drain port 9. Dish basket 9a Handle 10 Rotating cleaning nozzle 11 Top cleaning nozzle 12 Water supply route 13a Cleaning pump 13b Drainage pump 14 Washing motor 15a Water distribution motor 15b Residual water motor 16a Water supply valve 16b flow meter 17a Blower fan (drying fan) 17b Blower heater (drying heater) 17c Cooling fan 18 Door opening / closing switch 19 Middle cleaning nozzle 20 Control device 20a Interface 21 Processors 21a Operation control unit 21b Display operation control unit 21c Maintenance Department 22 Memory 22a Control Program 30 Rinse aid supply unit 31a opening 31b Inlet 31c Locking part 32 Lid 32a Main body 32b Elastic ring 32c Locked part 32d Lower end surface 33 Rotating shaft 35 Storage Tank 36 Input Tank 36a Solenoid valve (inlet valve) 36b Seal part 36c Communication part 37 Water temperature detector 38 Rinse agent remaining amount detector 38a Float member 39 Detergent supply section 41 Handle 42 Plane part 43 Display operation section 44 Display section 101 Dishwasher / dryer R1 Rinse aid R1a 1 dose of rinse aid

Claims

1. a washing tub for containing tableware to be washed; a rinse agent supply unit that supplies a rinse agent to the cleaning tank; a drying fan that supplies air into the washing tub to dry the tableware; a drying heater that heats the air supplied to the inside of the cleaning tank by the drying fan; a control unit which sequentially executes a washing step and a drying step in a washing operation for washing tableware contained in the washing tub, and drives the drying heater and increases the rotation speed of the drying fan in the drying step; A dishwasher / dryer comprising: the control unit determines whether the rinse agent has been dispensed, and changes a sequence of the drying step depending on whether the rinse agent has been dispensed. Dishwasher and dryer.

2. The control unit increases the rotation speed of the drying fan in a stepwise manner in the drying process. The dishwasher and dryer according to claim 1.

3. The control unit continuously increases the rotation speed of the drying fan in the drying process. The dishwasher and dryer according to claim 1.

4. the control unit determines whether the rinse agent has been dispensed into the cleaning tank, and when it is determined that the rinse agent has been dispensed, controls the rotation speed of the drying fan so that the rotation speed reaches a maximum rotation speed in a shorter time than when the rinse agent has not been dispensed. The dishwasher / dryer according to claim 1 or 2.

5. the control unit determines whether or not the rinse agent has been dispensed into the cleaning tank, and when it determines that the rinse agent has not been dispensed, controls the rotation speed of the drying fan so that the rotation speed reaches the maximum rotation speed in a shorter time than when the rinse agent has been dispensed. The dishwasher / dryer according to claim 1 or 2.

6. the control unit determines whether the rinse agent has been dispensed into the cleaning tank, and when the rinse agent has been dispensed, starts driving the drying heater at an earlier timing than when the rinse agent has not been dispensed. The dishwasher / dryer according to claim 1 or 2.

7. the control unit determines whether the rinse agent has been dispensed into the cleaning tank, and when the rinse agent has not been dispensed, starts driving the drying heater at an earlier timing than when the rinse agent has been dispensed. The dishwasher / dryer according to claim 1 or 2.

8. the rinse agent supply unit includes a storage tank for storing the rinse agent, and a float member provided in the storage tank and adapted to change position in response to fluctuations in the liquid level of the rinse agent. The dishwasher / dryer according to claim 1 or 2.

9. the control unit determines whether the rinse agent has been dispensed into the cleaning tank by detecting a change in a position of the float member in addition to setting the dispenser of the rinse agent, and determines that the rinse agent has been dispensed when it is determined that the rinse agent is stored in the storage tank that stores the rinse agent. The dishwasher and dryer according to claim 8.

10. Even when it is determined that the rinse agent is not stored in the storage tank that stores the rinse agent inside the rinse agent supply unit, if the determination that the rinse agent is not stored occurs within a predetermined number of times, the control unit determines that the rinse agent has been added. The dishwasher and dryer according to claim 8.

11. the control unit determines whether the rinse agent has been dispensed into the cleaning tank, and when it is determined that the rinse agent has been dispensed, shortens the time of the drying step compared to when the rinse agent has not been dispensed. The dishwasher / dryer according to claim 1 or 2.

12. the control unit determines that the rinse agent has not been dispensed when a user selects a setting that does not use the rinse agent even if the rinse agent is stored in the storage tank that stores the rinse agent inside the rinse agent supply unit. The dishwasher and dryer according to claim 8.

13. A method for controlling a dishwasher / dryer comprising: a washing tub for accommodating dishes to be washed; a rinse agent supplying section for supplying rinse agent to the washing tub; a drying fan for supplying air into the washing tub to dry the dishes; and a drying heater for heating the air supplied to the washing tub by the drying fan, comprising: a washing step of washing the tableware contained in the washing tank; a drying step of supplying the air heated by the drying heater into the washing tank while increasing the rotation speed of the drying fan to dry the tableware; Equipped with in the drying step, determining whether or not the rinse agent has been dispensed, and changing a sequence depending on whether or not the rinse agent has been dispensed. The control method includes:

14. A control program for a dishwasher / dryer including a washing tub for accommodating dishes to be washed, a rinse agent supply unit for supplying rinse agent to the washing tub, a drying fan for supplying air into the washing tub to dry the dishes, and a drying heater for heating the air supplied to the washing tub by the drying fan, a washing step of washing the tableware contained in the washing tank; a drying step of supplying the air heated by the drying heater into the washing tank while increasing the rotation speed of the drying fan to dry the tableware; Equipped with in the drying step, determining whether or not the rinse agent has been dispensed, and changing a sequence depending on whether or not the rinse agent has been dispensed. A control program that causes a computer to execute a control method comprising the steps of:

15. a washing tub for containing tableware to be washed; a rinse agent supply unit that supplies a rinse agent to the cleaning tank; a drying fan that supplies air into the washing tub to dry the tableware; a control unit which sequentially executes a washing step and a drying step in a washing operation for washing tableware contained in the washing tub, and determines whether or not the rinse agent has been dispensed into the washing tub in the drying step, and when it is determined that the rinse agent has not been dispensed, controls the rotation speed of the drying fan so that the maximum rotation speed is reached in a shorter time than when the rinse agent has been dispensed; Equipped with a dishwasher.

16. A method for controlling a dishwasher / dryer including a washing tub for accommodating dishes to be washed, a rinse agent supplying unit for supplying rinse agent to the washing tub, and a drying fan for supplying air into the washing tub to dry the dishes, comprising: a washing step of washing the tableware contained in the washing tank; a drying step of supplying air into the washing tank by the drying fan to dry the tableware, determining whether or not the rinse agent has been added, and controlling the rotation speed of the drying fan so that the maximum rotation speed is reached in a shorter time than when the rinse agent has been added; The control method includes:

17. A control program for a dishwasher / dryer including a washing tub for accommodating dishes to be washed, a rinse agent supplying unit for supplying rinse agent to the washing tub, and a drying fan for supplying air into the washing tub to dry the dishes, comprising: a washing step of washing the tableware contained in the washing tank; a drying step of supplying air into the washing tank by the drying fan to dry the tableware, determining whether or not the rinse agent has been added, and controlling the rotation speed of the drying fan so that the maximum rotation speed is reached in a shorter time than when the rinse agent has been added; A control program that causes a computer to execute a control method comprising the steps of:

Images