JP2968196B2 - Dishwasher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a cleaning means for cleaning an object to be cleaned installed in a closed cleaning space having a closed entrance and a control means for controlling the operation of the cleaning means. The control means is configured to control the operation of the cleaning means so as to sequentially execute a cleaning step of cleaning an object to be cleaned and a rinsing step in which rinsing is performed in a state where a finishing agent is charged. About dishwashers.

[0002]

2. Description of the Related Art Conventionally, in the above-mentioned dishwasher, for example, as shown in Japanese Utility Model Application Laid-Open No. 58-88967, a finishing agent feeder for feeding a finishing agent is provided, and a washing operation is performed. Then, during the rinsing process, the finishing agent dispenser is operated to supply the finishing agent into the cleaning space.

[0003]

The above-mentioned finishing agent is dried by lowering the surface tension of water and improving drainage, for example, in the case where the finishing agent is washed with water in the washing step. Substantially prevent traces of water droplets from remaining on the surface of the object to be cleaned, clouding of transparent glass products, etc., or substances that cause cloudiness of calcareous or alkaline components. It is used to clean the finish after cleaning so as to avoid remaining on the object to be cleaned. Therefore,
When such a finishing agent is not used, the surface of the object to be cleaned may be clouded or cloudy due to the above-described causes after the cleaning.

[0004] However, the exclusive finishing agent dispenser used in the above-described conventional configuration is driven based on a timer operation because it is necessary to supply the finishing agent at a predetermined timing into the closed washing space. However, there is a disadvantage that the finishing agent needs to be stored without leaking until the supply point, so that the number of parts is increased, the configuration is complicated, and the cost is increased accordingly.

The present invention has been made in view of such a point, and an object thereof is to end the above-described series of cleaning operations in a state where the finishing agent is not charged as described above. While avoiding such disadvantages beforehand,
An object of the present invention is to provide a dishwasher capable of reducing costs by simplifying the configuration.

[0006]

According to the first aspect of the present invention, there is provided a cleaning means for cleaning an object to be cleaned installed in a closed cleaning space in which an entrance is closed, and the cleaning means. Control means for controlling the operation of the cleaning means, in order to sequentially execute a cleaning step of cleaning the object to be cleaned and a rinsing step of performing rinsing in a state in which the finishing agent is charged. And control the operation of the cleaning means is stopped when the finishing agent is to be supplied, and when the operation restart is instructed by the command means,
Thereafter, the control operation is restarted. Further, as the control means stops the control operation, the notification means executes the notification operation.

Therefore, when the control means stops the control operation of the cleaning means, the user can open the entrance and supply the finishing agent into the cleaning space at an appropriate timing. In addition, at this time, since the notification means performs the notification operation, the user can reliably recognize that the finishing agent should be supplied.

As a result, the control operation can be performed in a state where the supply of the finishing agent is not performed while the cost is reduced by simplifying the configuration without providing the finishing agent supply means for automatically supplying the finishing agent. Has been resumed and a series of washing operations has been completed, thereby making it possible to provide a dishwasher capable of avoiding the disadvantage as much as possible.

According to a second aspect of the present invention, the command means is configured to instruct the restart of the operation when a set time has elapsed since the control means stopped the control operation of the cleaning means. Have been.

In other words, the control operation of the cleaning means by the control means is stopped and the control operation of the cleaning means by the control means is automatically restarted after the set time has elapsed after the finishing agent is supplied. Therefore, there is no disadvantage that the cleaning is left as it is for a long time, and an appropriate cleaning operation is continuously performed.

According to a third aspect of the present invention, the instructing means is configured to instruct the restart of the operation based on a manual operation.

Accordingly, the control operation is stopped, and after the user supplies the finishing agent, the operation restart is instructed by a manual operation. Therefore, the control operation is reliably performed in a state where the finishing agent is supplied. Can be resumed,
There is no disadvantage that the control operation is restarted against the intention of the user in a state where the finishing agent is not supplied.

According to a fourth aspect of the present invention, the cleaning means includes a jet nozzle for jetting cleaning water to the object to be cleaned, and a pump for supplying the cleaning water to the jet nozzle. Drying means for drying the object to be cleaned is provided, and the control means is configured to control the operation of the drying means to execute the drying step after the rinsing step.

Therefore, in the cleaning step, the cleaning water supplied from the pump is jetted from the jet nozzle, and the object to be cleaned is cleaned well. Then, after the rinsing step in the state in which the finishing agent is supplied, the drying step is performed by the drying means, so that the cleaning water is quickly dried, and a series of cleaning operations can be efficiently performed. Even after the washing water is dried, it is possible to prevent cloudiness due to water droplets of the washing water and to prevent calcareous and alkaline components contained in the washing water from remaining, thereby obtaining a good finish.

According to the characteristic configuration of the present invention, since the recovery tool for recovering the removed material removed from the object to be cleaned in the cleaning step is detachably provided in the cleaning space, the finishing agent can be removed. At the point of time to supply, when the control operation of the control means is stopped, while supplying the finishing agent,
By removing the removed matter collected by the collecting tool or removing the collecting tool, the rinsing step of the object to be cleaned is continuously performed with such removed matter remaining in the cleaning space. By doing so, it is possible to avoid disadvantages such that the removed material adheres to the object to be cleaned again or the odor of the removed material adheres.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a dishwasher according to the present invention will be described with reference to the drawings. 2 and 3 show a dishwasher according to the present invention. In this dishwasher, a substantially rectangular box-shaped main body case 1 having an open front is provided with a door 2 which can swing open and close around a horizontal axis at a lower end. A cleaning tank 3 for cleaning an object to be cleaned is provided. The cleaning tank 3 has a front surface which is widely opened as an entrance / exit D for the object to be cleaned, and a door 2.
Is closed, the cleaning tank 3 is hermetically closed by the inner surface of the door 2. Then, in the washing space K formed by the washing tank 3 and closed in a hermetically closed manner, the upper and lower two net baskets 5a and 5b detachably slidably supported by the support rails 4 are provided with dishes and the like. In a state where the object to be cleaned is stored, a lower ejection nozzle 6a provided below the lower mesh basket 5a and an upper mesh basket 5b are provided.
The washing water is spouted from a large number of spouting holes 7 formed in each of a middle ejection nozzle 6b provided below the upper net basket 5b and an upper ejection nozzle 6c provided above the upper net basket 5b. It is configured to perform cleaning of a cleaning object.

In this dishwasher, as shown in FIG.
A water supply path 8 for supplying cleaning water to the cleaning tank 3; a discharge path 9 for discharging cleaning water in the cleaning tank 3 to the outside;
The cleaning water stored in the cleaning nozzles 6a, 6b,
Each of the transport paths 10 for transporting up to 6c is provided so as to be connected to the cleaning tank 3. The water supply channel 8 is connected to the inside of the washing tank 3 in a state of being opened near the middle position in the vertical direction of the washing tank 3, and a manual opening / closing valve 11 which is set to be open during operation is provided in the middle thereof. And an electromagnetic water supply valve 12. Manual open / close valve 11 and water supply valve 1
When both valves 2 are opened, water is supplied into the washing tank 3 by the water supply pressure of a water supply source such as a water supply. The discharge path 9 is
Wash water is sucked from an opening 14 formed at the bottom of the washing tank 3 by a drain pump 13 provided in the middle of the washing tank 3, and a vertical path portion for preventing backflow provided on a lateral side of the washing tank 3. The cleaning water is discharged to the outside from the discharge part 9b after passing through 9a.

A water level sensor 15 is provided for detecting whether or not the water level stored in the cleaning tank 3 when the water is supplied into the cleaning tank 3 has reached a set water level. When the water supply is detected, the water supply valve 12 is closed and the water supply is automatically stopped.

The transport path 10 is provided with a suction transport path portion 10a for sucking cleaning water stored in the cleaning tank 3 through the opening 14 by the operation of a circulation pump 16 provided in the middle of the transport path. A first transport path portion 10b for forcibly transporting the cleaning water from the lower side of the circulation pump 16 toward the lower ejection nozzle 6a, and forcibly supplying the cleaning water from the lower side of the circulation pump 16 to the upper ejection nozzle 6c. And a second transport path portion 10c to be transported. Lower jet nozzle 6a
Is configured to be rotatable around the longitudinal axis at a middle portion in the longitudinal direction with respect to the bottom surface of the washing tank 3,
The middle ejection nozzle 6b is configured to be rotatably supported around the longitudinal axis with respect to the mesh basket 5b. Each ejection nozzle 6a, 6b, 6c is configured such that each ejection hole 7 ejects washing water obliquely upward in opposite directions.
By the reaction of the jetting power of the washing water, the jet nozzle itself is configured to rotate at a low speed around the vertical axis, and the washing water is sprayed to every corner of the object to be washed, and the washing is effectively performed. It has become. The upper ejection nozzle 6c is configured to eject the washing water in a fixed state with respect to the washing tank 3, and the upper ejection nozzle 6b is attached to the middle ejection nozzle 6b.
washing water released from c is has a configuration which is supplied from the water supply unit 6b _1. Therefore, the cleaning means S is provided by the transport path 10, the circulation pump 16, and the ejection nozzles 6a, 6b, 6c.
Is configured.

As shown in FIGS. 4 and 5, a filter F is provided in the opening 14 at the bottom of the cleaning tank 3 as a collecting tool for receiving dust such as residual vegetables generated by the cleaning action. This filter F is shown in FIG.
As shown in (a) and (b), a coarse filter F1 having a coarse mesh and a fine filter F2 having a fine mesh are provided.
At the time of the cleaning operation, the cleaning water is configured to pass through the fine filter F2 after the coarse filter F1, and at the time of discharge, the flow of the cleaning water is reversed, and the dust adhering to the inner surface of the fine filter F2 is removed and discharged. It is configured to: The filter F is placed and supported along the inner peripheral edge of the opening 14 and is configured to be easily removable.

At the bottom of the washing tank 3, the washing water supplied to the washing tank 3 is heated in the washing step, and the air inside the washing tank 3 is heated in the drying step after the washing water is discharged. A heater 19 is provided as drying means for drying the object to be cleaned. This heater 19
The hot water heated by the external heat source unit 20 is supplied to the hot water supply path 2
It is constituted by a hot water heater 19 which is heated and dried by being supplied by flow through the heater 1.

As shown in FIG. 4, the bottom of the washing tank 3 is disposed in a bent state over a wide area, and the inside thereof is constituted by a conduit through which hot water can flow. As shown in FIG.
The hot water supplied from the heat source unit 20 through the hot water supply path 21 flows through the hot water heater 19 and then circulates through the return path 22 to the heat source unit 20. The return path 22 is connected to the discharge path 9. Branch path 23 is provided.
The hot water supplied from the heat source device 20 is configured to be constant at a temperature of about 80 ° C. Hot water supply path 21
Is provided with an electromagnetic open / close type hot water valve 24, and the branch passage 23 is provided with an electromagnetic open / close type discharge valve 25. By opening the hot water valve 24 and closing the discharge valve 25, hot water can be supplied to the hot water heater 19, and the hot water valve 24
, And the supply of hot water to the hot water heater 19 is stopped by opening the discharge valve 25. Therefore, the heating temperature of the hot water heater 19 can be changed and adjusted by opening and closing the hot water valve 24 and the discharge valve 25.

Inside the cleaning tank 3, a temperature sensor 26 as temperature detecting means for detecting the temperature in the cleaning tank 3, and a door 2.
Door switch 2 for detecting whether or not the door is closed
7 are provided.

A control device 28 using a microcomputer as control means for controlling the operation of each unit as described above, and an operation unit 29 for instructing the control device 28 with control information are provided. The operation unit 29 is provided on the upper outer surface side of the door 2 and includes a power switch 30 for instructing power on / off, and a start switch 3 for instructing start of the cleaning operation.
1. Time setting switch 32 for changing and setting the drying time; notification buzzer 33 and notification lamp 34 constituting notification means H
Etc. are provided.

The control device 28 is configured to stop the cleaning operation at the point of time when the finishing agent for drying is to be supplied, until the restart of the operation is instructed by the instructing means.
Note that the command means is configured to instruct a restart of the operation when a set time has elapsed since the operation was stopped.

Next, the control operation of the controller 28 will be described with reference to the flowcharts of FIGS. Prior to the start of the cleaning operation, the door 2 is manually opened and tableware and the like as objects to be cleaned are placed in the cleaning tank 3 in the net baskets 5a and 5b.
b, and a dedicated detergent is supplied into the washing tank 3. Then, when the door 2 is closed, the door switch 27 is turned on and the operation is set (step 1). When the power switch 30 is turned on and the start switch 31 is turned on, the operation is started (steps 2 and 3). First, the washing water in the washing tank 3 is discharged (step 4). That is, when the drainage pump 13 operates and the water level sensor 15 turns off, the drainage pump 13 stops. Next, cleaning water is supplied into the cleaning tank 3 (step 5). That is, the water supply valve 12 is opened and the water level sensor 15
Is turned on to detect the reaching of the set water level, the water supply valve 12 is closed.

Next, the process proceeds to a washing step, and after water is supplied, the circulation pump 16 is operated and the hot water heater 1 is turned on.
The hot water of about 80 ° C. is passed through 9 (steps 6 and 7).
The hot water valve 24 and the discharge valve 2 are controlled so that the detection value of the temperature sensor 26, that is, the temperature in the cleaning tank 3 is maintained at about 60 ° C.
The operation of step 5 is controlled to adjust the hot water supply state to the hot water heater 19 (step 8). When the set time (approximately 26 minutes) elapses, the operation of the circulation pump 16 is stopped, and hot water supply to the hot water heater 19 is stopped.
The washing water is discharged (steps 9, 10, 11). In such a washing step, the washing water ejected in a spray form from the ejection holes 7 comes into contact with the hot water heater 19 to be efficiently heated and the washing is performed with the hot water. Also, as mentioned above,
The lower and middle jet nozzles 6a and 6b rotate around the vertical axis with the jetting power of the washing water, so that every corner of the object to be washed is surely washed.

Next, the operation proceeds to a rinsing step, and after water is supplied, the circulating pump 16 is operated for a set time (about 1 minute) to perform rinsing, and thereafter, the operation of discharging the washing water is repeated three times. (Steps 12-1
6).

After the three rinsing operations are completed,
When it is time to supply the finishing agent, the control operation is stopped at that time to stop the operation (step 17). That is, irrespective of the operation of the start switch 31 and the door switch 27 in the operation unit 29, the operation of all devices related to the cleaning operation, such as the hot water supply operation to the circulation pump 16, the drain pump 13, and the hot water heater 19, is stopped. At this time, the notification buzzer 33 is operated, and the notification lamp 34 is turned on to notify the user that the finishing agent for drying is to be supplied (step 18). In this way, the user can reliably recognize that the finishing agent should be supplied, and it is possible to avoid a series of cleaning operations in a state where the finishing agent is not supplied as much as possible. Become.

When the notification operation is performed as described above, the user manually opens the door 2 to supply the finishing agent to the inside of the cleaning layer 3 and removes the filter F to be cleaned in the cleaning process. By removing the removed material such as garbage removed from the material and collected by the filter F, or by removing the filter F, the rinsing is performed in a state where the removed material such as garbage remains in the washing tank 3. It is possible to avoid the risk of giving the user discomfort or unclean feeling.

Then, when a set time (for example, 5 minutes) elapses after the operation is stopped, an operation restart is instructed, and the operation is restarted to start a fourth rinsing (step 1).
9).

At the time of the fourth rinsing, after the above-described water supply operation is performed, hot water is passed through the hot water heater 19 and
The operation of the circulation pump 16 is started, and the rinsing with hot water is performed (steps 20, 21, 22). At this time, the heating state by hot water is adjusted and controlled so that the detection value of the temperature sensor 26 is maintained at about 70 ° C. (step 2).
3) If such hot water rinsing is continued for a set time (approximately 30 minutes), the operation of the circulation pump 16 is stopped and the cleaning water is discharged (steps 24 and 25), and the rinsing step is completed.

Next, the process proceeds to a drying step, in which the hot water is passed through the hot water heater 19, and the heating state by the hot water is adjusted and controlled so that the detection value of the temperature sensor 26 is maintained at about 70 ° C. (step 26, 27). That is, the air in the cleaning tank 3 is about 7
The object to be cleaned is dried by being heated to 0 ° C. When a set time (about 20 minutes) elapses after the start of such a drying operation, hot water supply to the hot water heater 19 is stopped, and the drying process ends (steps 28 and 29). The set time for this drying is about 4 times by the time setting switch 32.
It can be changed to 0 minutes. When about 10 minutes have passed after the drying process, the power switch 30 is automatically turned off.
The state is switched to the F state, and the operation ends (step 3).
0, 31).

The operation time in each step as described above is not limited to the set time as illustrated, but may be changed as appropriate.

[Other Embodiments] (1) In the above embodiment, the command means for instructing the control means to restart the control operation is to instruct the control operation to be restarted after a lapse of a set time after the control operation is stopped. Instead of this configuration, or in addition to this configuration, the operation unit is provided with an operation switch for restart command that can be manually operated, and the control operation is restarted based on the operation of this operation switch. You may be comprised so that it may be performed. In the configuration in which the operation switch is used in combination with the configuration of the above embodiment, if the operation switch is operated before the set time elapses, the control operation is restarted at that time, and the operation is performed when the set time elapses. The control operation may be restarted at that time regardless of the operation of the switch.

(2) In the above-described embodiment, the notification is made by using the notification buzzer and the notification lamp as the notification means. However, only one of them may be used. In the sound, you may be notified by words such as "Please supply finishing agent" or by melody sound, and the notification lamp protrudes upward from the upper surface of the dishwasher, omnidirectional A notification lamp that emits light may be used. Alternatively, the notification may be made by graphic display in various forms.

(3) In the above embodiment, the cleaning means is configured to eject cleaning water from the nozzle. However, the present invention is not limited to such a configuration.
A configuration for cleaning in various forms, such as a configuration in which cleaning water is swirled and cleaned, may be used.

(4) In the above-described embodiment, the case where the drying means is constituted by a hot water heater through which hot water flows is exemplified. However, the drying means may be constituted by an electric heater for heating air by energization. It may be constituted by a ventilation fan for ventilating the air in the washing space to the outside.

(5) In the above embodiment, the drying means is provided, and the drying step of forcibly drying is performed after the rinsing step. However, the object to be cleaned is naturally dried without the drying means. May be dried.

(6) In the above embodiment, the detergent used in the cleaning step is also supplied manually. However, the detergent is stored, and when the detergent is to be supplied, the detergent is automatically placed in the cleaning space. The structure which provides the detergent supply means to supply may be sufficient.

In the claims, reference numerals are provided to facilitate comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a dishwasher.

FIG. 2 is a perspective view of a dishwasher.

FIG. 3 is a perspective view of a dishwasher.

FIG. 4 is a diagram showing an arrangement state of a hot water heater.

FIG. 5 is a sectional view of a filter.

FIG. 6 is a flowchart of a control operation.

FIG. 7 is a flowchart of a control operation.

[Explanation of symbols]

 6a, 6b, 6c Spout nozzle 16 Pump 19 Drying means 28 Control means D Doorway F Recovery tool H Informing means K Cleaning space S Cleaning means

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A47L 15/42-15/46

Claims (5)

(57) [Claims] 1. A cleaning means (S) for cleaning an object to be cleaned installed in a closed cleaning space (K) in which an entrance (D) is closed, and an operation of the cleaning means (S) is controlled. Control means (28) for performing a cleaning step of cleaning an object to be cleaned and a rinsing step of performing rinsing in a state in which a finishing agent is charged, in order to sequentially execute the cleaning step; A dishwasher configured to control an operation of the washing unit (S), wherein the control unit (28) restarts operation by a command unit when a time point at which the finishing agent is to be added is reached. Until a command is issued, a control operation of the cleaning unit (S) is stopped, and a notification unit (H) that performs a notification operation as the control unit (28) stops the control operation is provided. Dishwasher. 2. The control means (28), wherein the command means comprises:
2. The dishwasher according to claim 1, wherein when the set time elapses after the control operation of the cleaning means (S) is stopped, the operation restart is commanded. 3. The instructing means according to claim 1, further comprising:
2. The apparatus according to claim 1, wherein the operation restart is commanded.
Dishwasher as described. 4. The cleaning means (S) comprises: jet nozzles (6a), (6b), and (6) for jetting cleaning water onto an object to be cleaned.
c) and the ejection nozzles (6a), (6b), (6c)
A drying unit (19) for drying the object to be cleaned, and the control unit (28) performs a drying process after the rinsing process is completed. And controlling the operation of the drying means (19) in order to perform the following.
Dishwasher as described. 5. A cleaning tool (F) for recovering the material removed from the object to be cleaned in the cleaning step is provided detachably in the cleaning space (K).
Or the dishwasher according to 4.