WO2011152030A1

WO2011152030A1 - Dishwashing machine

Info

Publication number: WO2011152030A1
Application number: PCT/JP2011/003026
Authority: WO
Inventors: 池島　衞; 彰荘司
Original assignee: パナソニック株式会社
Priority date: 2010-06-01
Filing date: 2011-05-31
Publication date: 2011-12-08
Also published as: KR20130031274A; EP2578136A1; TWI421799B; EP2578136A4; CN102917631A; CN102917631B; EP2578136B1; TW201203176A

Abstract

A dishwashing machine is provided with: an operation unit for inputting an instruction for the dishwashing machine; a control unit covered with a cover, performing the operational control of the dishwashing machine on the basis of control information inputted in the operation unit; and a display unit for displaying the operational state of the dishwashing machine. The control unit has: a memory for enabling information relating to the state of operational process to be written therein and read therefrom; and a memory control unit for enabling information written in the memory to be operated with the cover removed and causing the information to be displayed on the display unit.

Description

dishwasher

The present invention relates to a dishwasher.

Generally, in a dishwasher, the deterioration of parts progresses both thermally and chemically due to the effects of heating by a heater, detergent, and oil washed away from the object to be washed after long-term use. For this reason, it is desirable to check the dishwasher by a service person after a predetermined number of times of operation or operating time has elapsed.

Normally, in electrical equipment that requires reliability and safety, the counted cumulative energization time and the number of operations are stored in a memory. When the accumulated energization time or the number of operations reaches a predetermined range, a predetermined time, or a predetermined number of times, a warning or display is automatically performed. Thereby, a technique for informing the user of the inspection time of the dishwasher and urgently promoting maintenance is disclosed (for example, see Patent Document 1).

That is, in the conventional dishwasher, the inspection time is warned and displayed to the user by detecting a predetermined accumulated energization time, the number of operations, and the like. In addition, even when the operating time is less than the specified operating time or operating frequency, when the memory is replaced due to failure or repair, a service person etc. reads the operating time and operating frequency from the memory by external operation, and stores the information in the new memory. By writing, it was possible to take over the number of operations and operation time before replacement. As a result, in the conventional technology, a service man operates a switch such as a button for controlling the operation of the product, reads the operation time and the number of operations, and can write to a new memory at the time of repair.

However, since switches such as buttons for controlling the operation of the product can be operated by the user, there is a problem that the user operates to rewrite the operation time and the number of operations. Moreover, since the display part which displays an operation time unnecessary for a user, the frequency | count of an operation, etc. is provided in the product outline of a dishwasher, there also existed a subject that operativity fell.

Japanese Patent No. 2666363

In order to solve the above problems, the dishwasher of the present invention is covered with an operation unit for inputting instructions to the dishwasher and a cover for controlling the operation of the dishwasher based on control information input to the operation unit. And a display unit for displaying the operation status of the dishwasher. The control unit includes a memory capable of reading and writing information related to the operation progress state, and a memory control unit configured to operate the information written in the memory by removing the cover and displaying the information on the display unit.

This prevents the user from operating the memory control unit and rewriting the operation time and the number of operations, so that it is possible to accurately notify the user when the dishwasher needs to be checked or repaired.

1 is a longitudinal sectional view of a dishwasher according to Embodiment 1 of the present invention. FIG. 2 is a block diagram illustrating a control unit of the dishwasher in the same embodiment. FIG. 3 is a flowchart showing the operation of the dishwasher in the same embodiment. FIG. 4 is a longitudinal sectional view of the dishwasher according to the second embodiment of the present invention.

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

(Embodiment 1)
Below, the dishwasher in Embodiment 1 of this invention is demonstrated using FIG. 1 is a longitudinal sectional view of a dishwasher according to Embodiment 1 of the present invention.

As shown in FIG. 1, a cabinet 1 of a dishwasher housed in a system kitchen is provided with a washing tub 4 that has an opening 2 on the upper side to house and wash dishes 3. The cleaning tank 4 is connected to a water pipe through a water supply unit 5, and water is supplied into the cleaning tank 4 during operation. On the front surface of the casing 1 of the dishwasher main body, there are provided an operation unit 6 for selecting on / off of a power source, an operation course and the like, and a display unit 7 for displaying the operation status of the dishwasher. Here, the operation state of the dishwasher means an operation process such as washing, rinsing, and drying, and information written in the memory 22.

Further, the cleaning tank 4 is provided so as to be freely drawable in the front-rear direction (in the direction of the arrow in the drawing) along the rail 8 that is installed in the substantially horizontal direction (including the horizontal direction) inside the both side surfaces of the housing 1. .

In the washing tub 4, a table basket 9 for storing the tableware 3 is disposed, and below the table basket 9, a cleaning nozzle 10 is rotatably provided. Further, inside the cleaning tank 4, a heating unit 11 such as a heater for heating the cleaning water and a drain port 12 are provided at the bottom of the cleaning tank 4. Further, outside the cleaning tank 4, a temperature detection unit 13 configured to detect the temperature in the cleaning tank 4, for example, a thermistor, and a motor 14 that sends the cleaning water accumulated in the drain 12 to the cleaning nozzle 10 are provided. A cleaning pump 15 is arranged. Then, the cleaning water accumulated in the drain port 12 is circulated by the cleaning pump 15, thereby cleaning the tableware 3 by jetting the cleaning water from the cleaning nozzle 10.

Further, as shown in FIG. 1, a lid 16 that closes the opening 2 is disposed above the housing 1. The lid body 16 is supported by a pair of left and right parallel link mechanisms 17 including a pair of front and rear links so as to be movable up and down. An elastic sealing member 18 that seals the opening 2 of the cleaning tank 4 is fixed to the lid 16. And when the washing tank 4 is pulled out, the sealing member 18 of the lid body 16 is configured to escape (retract) the lid body 16 so as not to interfere with the back and forth movement of the washing tank 4.

Further, an exhaust port (not shown) for discharging air in the washing tub 4 of the dishwasher and a blower unit 20 for supplying outside air into the washing tub 4 are provided. When the tableware 3 is dried, the moist air in the cleaning tank 4 is discharged out of the cleaning tank 4 through the exhaust port. A control unit 21 that controls the operation of the dishwasher is disposed on the front surface of the front wall of the washing tub 4.

Hereinafter, the control unit of the dishwasher of the present invention will be described with reference to FIG. 2, and FIG. 2 is a block diagram illustrating the control unit of the dishwasher in the same embodiment.

As shown in FIG. 2, the control unit 21 includes at least a memory 22, a state detection unit 24, and a memory control unit 23 that displays on the display unit 7, which sequentially control each process of cleaning, rinsing, and drying. Yes. And the control part 21 is covered with the cover 25 provided in the front surface of the main body of a dishwasher, as shown in FIG. Here, the memory 22 is configured to record information related to the operation progress state and to be able to read, write, and erase information. The state detection unit 24 writes information related to the driving progress state for each driving in the memory 22. The memory control unit 23 displays the information written in the memory 22 on the display unit 7 by operating with the cover 25 removed.

Note that the information related to the operation progress state described above is the number of operations or operation time, or the number of times that the temperature in the cleaning tank 4 has reached a predetermined temperature by the temperature detection unit 13. In addition, at least one of the above operation count, operation time, and the number of times the predetermined temperature is reached is set in the memory 22. In addition, by performing a predetermined operation on the operation unit 6 or at least the memory control unit 23, information related to the driving progress state is displayed on the display unit 7. Furthermore, by operating the operation unit 6 or the memory control unit 23, information related to a new driving progress state can be written in the memory 22.

Hereinafter, the configuration, operation, and action of the control unit 21 according to the embodiment of the present invention will be described with reference to FIG. FIG. 3 is a flowchart showing the operation of the dishwasher in the same embodiment.

As shown in FIG. 3, first, the user operates the operation unit 6 to start driving.

Next, it is confirmed whether or not the information A (hereinafter abbreviated as the driving progress state A) related to the driving progress state is recorded in the memory 22 (step S1). At this time, when the factory is not in use (N in step S1), the operation progress state A is not recorded. Therefore, the operation progress state B is confirmed (step S2). Note that a predetermined value is previously input to the operation progress state B in the manufacturing stage in the control unit 21 shipped in the product state. Therefore, in step S2, it is determined that the driving progress state B exists.

Next, the operation progress state C is obtained by adding the operation progress state A and the operation progress state B together. And it is confirmed whether the driving | running | working progress state C is less than the predetermined value X (step S3). At this time, if it is less than the predetermined value X, that is, if inspection is not yet required (Y in step S3), the operations of washing, rinsing, and drying are performed (step S4). Then, the number of operations or the operation time is added and written to the operation progress state A in the memory 22, and the operation is terminated (step S5).

Here, the predetermined value X is the number of operations or operation time that requires inspection by a service person due to long-term use of the dishwasher, or the number of times that the temperature in the cleaning tank 4 has reached a predetermined temperature by the temperature detector 13. . In addition, at least one of the above operation count, operation time, and the number of times the predetermined temperature is reached is set in the memory 22. Although conceptually expressed as the predetermined value X, the predetermined value X is not limited to one value, and a plurality of values of the above items may be used in combination.

In addition, when the start of use of the dishwasher is the first time, since the operation progress state A does not exist (N in Step S1), Step S2 for confirming the operation progress state B is executed. However, once the dishwasher is operated, the operation number A or the operation time is added to the operation progress state A, so the operation progress state A exists (Y in step S1). Therefore, step S2 for confirming the operation progress state B is not performed from the next operation of the dishwasher.

When the operation progress state C becomes equal to or greater than the predetermined value X in step S3 due to long-term use of the dishwasher (N in step S3), it is determined that the dishwasher needs to be inspected, and the inspection time is indicated by warning or display to the user. Shifts to the inspection notification mode for informing (step S6).

In addition, when the driving progress state A and the driving progress state B do not exist in the memory 22 (N in Step S2), for example, a memory abnormality mode for notifying a user or a serviceman displaying the abnormality by voice or LED is executed, A normal driving operation is not executed (step S7).

Hereinafter, a case where the control unit 21 is replaced due to a failure or repair of the dishwasher will be described. At this time, the repair / replacement memory 22 provided in the control unit 21 uses a memory in which the operation progress state A, the operation progress state B, and the like are not stored.

First, before exchanging the memory 22, the service person performs a predetermined operation on the operation unit 6 or the memory control unit 23 through, for example, an operation button or the like, and displays the driving progress state C on the display unit 7. And the frequency | count or driving | running time displayed on the display part 7 is recorded with a memo etc.

Next, the control unit 21 attached to the dishwasher is removed, and a new control unit 21 is attached to the dishwasher.

Next, by operating at least the memory control unit 23 through a predetermined operation, for example, via an operation button or the like, the number of driving times or the driving time of the driving progress state C (driving progress state A + driving progress state B) recorded before the replacement. Is written into the memory 22. After that, operation confirmation is performed such as whether normal operations such as washing, rinsing, and drying work. That is, when the control unit 21 is regularly replaced, it is determined that the operation progress state B exists in step S2 for confirming the operation progress state B, and hence the normal operation of the dishwasher is enabled thereafter.

On the other hand, if the writing operation to the memory 22 is omitted or forgotten, the driving progress state B does not exist, and therefore it is determined that the driving progress state B does not exist in step S2 for checking the driving progress state B. Therefore, the process proceeds to step S7, and when the operation check is performed after the replacement work of the control unit 21, for example, a memory abnormality mode in which a warning is given by the voice or the display unit 7 operates. As a result, a serviceman or the like is notified that the information related to the driving progress state has not been taken over.

That is, when the control unit 21 is replaced due to failure or repair, if the information relating to the operation progress state is not taken over, the subsequent operation of the memory abnormality mode makes it impossible to use the dishwasher thereafter. For this reason, the serviceman is notified by the operation in the memory abnormality mode, and thus the information related to the operation progress state is inevitably taken over by the replaced control unit 21.

That is, conventionally, when the information on the operation progress state is not taken over at the time of replacement of the control unit, it may not be possible to reliably warn the user when the inspection is necessary.

However, according to the dishwasher of the present embodiment, the information regarding the operation progress state is surely taken over by the notification of the memory abnormality mode. Therefore, even if the control unit 21 is replaced, the time when the inspection / repair is necessary is determined by the user. Can be accurately and reliably notified.

At this time, in order to normally take over the information related to the driving progress state, it is necessary that the information related to the correct driving progress state is stored in the memory 22. Therefore, by arranging the memory control unit 23 in the control unit 21 and covering the control unit 21 with the cover 25, the memory control unit 23 can be operated only after the serviceman removes the cover 25. That is, by covering the memory control unit 23 with the cover 25, the user does not operate the memory control unit 23. Thereby, it is possible to prevent the information related to the driving progress state in the memory 22 from being erroneously changed, and to store the information related to the correct driving progress state in the memory 22. As a result, it is possible to realize a highly reliable dishwasher that reliably informs the user when inspection and repair are necessary.

Moreover, according to this Embodiment, since the display part 7 is arrange | positioned in the front surface of the main body of a dishwasher, since a display, such as an operation process, can be confirmed even when using a dishwasher, the dishwasher with respect to a user Improved operability (usability).

Further, according to the present embodiment, the operation unit 6 is arranged on the front surface of the main body of the dishwasher, so that the information written in the memory 22 can be read out even when the dishwasher is in operation. The operability (usability) for the serviceman is improved.

(Embodiment 2)
Below, the dishwasher in Embodiment 2 of this invention is demonstrated using FIG. FIG. 4 is a longitudinal sectional view of the dishwasher according to the second embodiment of the present invention.

As shown in FIG. 4, the dishwasher according to the present embodiment writes the display unit 7 according to the first embodiment into the memory 22 and the first display unit 33 that displays operation steps such as washing, rinsing, and drying. The second embodiment differs from the first embodiment in that it is provided separately from the second display unit 34 for displaying information. Other configurations and operations are basically the same as those of the first embodiment, and thus description thereof is omitted. That is, except for the above, it can be explained by replacing the display unit 7 of the first embodiment with the first display unit 33 and the second display unit 34.

That is, as shown in FIG. 4, the 2nd display part 34 is covered with the cover 25 provided in the whole surface of the main body of the dishwasher, and is arrange | positioned in the control part 21 which a user cannot touch. Then, the second display unit 34 removes the cover 25 by a serviceman in the event of a dishwasher malfunction or repair, and performs a predetermined operation on the operation unit 6 or the memory control unit 23 via, for example, an operation button. For example, information related to the driving progress state described above is recorded in the memory 22. Based on this information, the control unit 21 is exchanged. Note that the first display unit 33 may or may not be covered with the cover 25.

Thereby, it is possible to prevent the information related to the operation progress state written in the memory 22 from being changed by the user. Moreover, the 1st display part 33 which is a display part which a user recognizes normally can be simplified, and a user-friendly display can be performed.

In addition, by separating the display of the operation process from the display of the information written in the memory 22, a display unit that can be easily understood by the user can be configured. Thereby, the misrecognition of a user's driving | operation process is prevented and the driving | operation of a dishwasher is attained reliably.

In addition, by covering the second display portion 34 unnecessary for the user in normal use with the cover 25, an easy-to-use dishwasher can be realized.

In addition, when repairing and inspecting the dishwasher, the information regarding the operation progress state is displayed on the second display unit 34 that can be dedicated to the serviceman, so that the serviceman can check and repair the dishwasher reliably and efficiently. It can be carried out.

Further, in the present embodiment, the serviceman erases information related to the driving progress state of the memory 22 by performing a predetermined operation, for example, via an operation button or the like in the operation unit 6 or at least the memory control unit 23. Is possible. As a result, when information related to a new operation progress state is written in the memory 22 of the control unit 21 or when different information is erroneously written, the information related to the operation progress state in the memory 22 is erased again and started again. Can be written to the memory 22.

In the present embodiment, a predetermined operation is performed in the operation unit 6 or at least the memory control unit 23, and information is read through the display unit 7 or the second display unit 34, thereby reading out information related to the driving progress state. However, the present invention is not limited to this example. For example, a connector that can connect the memory 22 and an external device may be provided in the control unit 21, and a service person may connect a predetermined external device to the connector to read and write information in the memory 22. As a result, more information can be taken over. At the same time, even when the control unit 21 breaks down and the dishwasher cannot be turned on, the information in the memory 22 can be read and written by connecting to an external device via the connector.

Further, in the present embodiment, the description has been given of the example in which the memory 22 is not removable from the control unit 21 and the manufacturing cost is suppressed. However, the present invention is not limited to this. For example, in order to make the work by the service person easier, the memory 22 may be removable. As a result, the memory can be easily replaced to improve workability, and all information can be easily taken over.

In the present embodiment, the information written in the memory 22 has been described as an example of being displayed on the second display unit 34 by any operation of the operation unit 6 and the memory control unit 23. However, the present invention is not limited to this. . For example, a configuration in which the second display unit 34 displays only by the operation of the memory control unit 23 is preferable. The reason for this is that when displaying on the second display unit 34 by the operation of the operation unit 6, there is a possibility that the user mistakenly rewrites the information in the memory 22 by the same switch operation. Furthermore, since the information related to the operation progress state written in the memory 22 is displayed on the second display unit 34 that cannot be confirmed while the user is in use, the user can obtain the information without noticing that the user is in the rewrite mode. It may be rewritten.

Therefore, the configuration in which the information is displayed on the second display unit 34 by the operation of the memory control unit 23 can eliminate the possibility of erroneous information rewriting by the user as described above. As a result, a more reliable dishwasher can be realized.

INDUSTRIAL APPLICABILITY According to the present invention, it can be applied to the technical field of electrical equipment such as a dishwasher, a heating device, and a cooking device that is required to prevent misuse of the user and accurately notify the user of the time when inspection / repair is necessary. .

DESCRIPTION OF SYMBOLS 1 Case 2 Opening part 3 Tableware 4 Washing tank 5 Water supply part 6 Operation part 7 Display part 8 Rail 9 Tableware basket 10 Washing nozzle 11 Heating part 12 Drain outlet 13 Temperature detection part 14 Motor 15 Washing pump 16 Cover body 17 Parallel link Mechanism 18 Seal member 20 Blower 21 Control unit 22 Memory 23 Memory control unit 24 State detection unit 25 Cover 33 First display unit 34 Second display unit

Claims

An operation unit for inputting instructions to the dishwasher;
A control unit covered with a cover for controlling the operation of the dishwasher based on the control information input to the operation unit;
A display unit for displaying the operation status of the dishwasher,
The control unit includes a memory capable of reading and writing information relating to an operation progress state, and a memory control unit configured to operate the information written in the memory by removing the cover and displaying the information on the display unit.
The said display part has a 1st display part which displays the operation process of a dishwasher, and is not covered with the said cover, and a 2nd display part which displays the information written in the said memory. Dishwasher.
The dishwasher according to claim 2, wherein the second display unit is displayed by an operation in the operation unit or the memory control unit.
The dishwasher according to claim 1, wherein the display unit is disposed on a front surface of a main body of the dishwasher.
The dishwasher according to claim 1, wherein the operation unit is disposed on a front surface of a main body of the dishwasher.