JP5206742B2 - dishwasher - Google Patents

Description

  The present invention relates to a dishwasher.

  In general, in a dishwasher, the deterioration of parts is promoted in terms of temperature and chemicals due to the effects of heating by a heater, detergent, oil washed away from the object to be washed, etc., over a long period of time. It is desirable to perform inspections by service personnel during operation hours.

  On the other hand, in an electrical device that requires reliability and safety, a memory is used to store the counted accumulated energization time and operation count in the memory, and the accumulated energization time and operation count are within a predetermined range, predetermined time, or predetermined There is a technique for informing a user of an inspection time by automatically giving a warning or a display when the number of times is exceeded, and urging preventive maintenance (for example, see Patent Document 1).

  According to this, in the dishwasher, it is possible to warn and display the inspection time to the user by detecting a predetermined accumulated energization time, the accumulated operation count, and the like. In addition, when the memory is replaced due to a failure or repair within a predetermined operating time or number of times, a service person or the like reads the operating time or number of times from the memory by an external operation, and stores the information in a new memory. Of course, it is possible to take over the number of operations and the operation time before replacement.

Japanese Patent No. 2666363

  However, in such a conventional technique, 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. In order to display the operation time and the number of operations on the display unit, the display unit becomes complicated, and there is a problem that user convenience deteriorates.

  The present invention solves the above-described conventional problems, and accurately and reliably informs the user of the time when inspection, repair, etc. are necessary, and also enables service personnel to perform inspection and repair work reliably and efficiently. It is another object of the present invention to provide a dishwasher that improves the usability by simplifying the display section that the user sees during use.

In order to achieve the above object, the present invention provides a dishwasher for washing an object to be cleaned, an operation unit for inputting instructions to the dishwasher, and control information input to the operation unit. A control unit that controls the operation of the dishwasher and that covers the front side of the dishwasher with a cover; and a first display unit that displays the operation status of the dishwasher to the user. Memory that stores such information and can read and write information, a memory control unit that controls reading and writing of information to the memory, and information written to the memory in the operation unit or the memory control unit have a second display unit to be displayed by the operation, the second display section that has been covered with the cover, accurate inspection, the timing, etc. are necessary repairs to the user In addition, it is possible to reliably and efficiently perform inspection and repair work by service personnel, simplify the display unit used by the user, and allow the user to easily grasp the operating status. Usability such as becoming can be improved.

  The dishwasher according to the present invention informs the user when the inspection or repair is necessary accurately and surely, enables the serviceman to perform the inspection and repair work reliably and efficiently, and allows the user to perform any operation. Even in this case, it is possible to realize a dishwasher with improved usability by obtaining an easy-to-understand display without the user seeing information such as an unnecessary driving time and the number of times of driving.

The longitudinal cross-sectional view of the dishwasher of Embodiment 1 of this invention The block diagram of the control part of the dishwasher of Embodiment 1 of this invention The flowchart which shows operation | movement of the dishwasher of Embodiment 1 of this invention.

1st invention is a dishwasher which wash | cleans a to-be-washed object, Comprising: The operation part for inputting the instruction | indication to a dishwasher, Operation control of a dishwasher based on the control information input into the said operation part And a control unit that covers the front side of the dishwasher with a cover and a first display unit that displays the operation status of the dishwasher to the user, and the control unit stores information related to the progress of the operation. A memory capable of reading and writing information; a memory control unit for controlling reading and writing of information to the memory; and information written in the memory is displayed by an operation in the operation unit or the memory control unit. possess a second display unit, the second display section that has been covered with the cover, inspection, to inform accurately and reliably is time required for repairs to the user DOO To, inspection of serviceman can work repairs performed reliably and efficiently and a user can simplify the display unit to be used, to obtain intelligible display unit, it is possible to improve usability.

  According to a second aspect of the present invention, since the operation unit is arranged on the front surface of the main body of the dishwasher, it becomes possible to read out information written in the memory even when the dishwasher is in operation. Man convenience is improved.

  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)
As shown in FIG. 1, the housing 1 accommodated in the system kitchen is provided with a washing tub 4 that has an opening 2 at the top and accommodates and cleans the dishes 3. The washing tank 4 is connected to a water pipe through a water supply means 5 so that water is supplied into the washing tank 4 during operation. On the front surface of the housing 1, an operation unit 6 for turning on / off the power supply, selecting an operation course, and the like, and a first display unit 7 for displaying each state are arranged.

  The washing tank 4 can be pulled out in the front-rear direction along rails 8 that are installed substantially horizontally in the inner sides of both sides of the housing 1, and the washing tank 4 and the rails 8 are fixed by means such as screws. The washing tank 4 can be pulled out from the housing 1 by releasing the fixing.

A table basket 9 that accommodates the tableware 3 is disposed inside the cleaning tank 4, and a cleaning nozzle 10 is rotatably provided below the table basket 9, and a heater for heating the cleaning water inside the cleaning tank 4. A drain port 12 is provided at the bottom of the heating means 11 and the cleaning tank 4. Further, the cleaning tank 4 is provided with a temperature detection means 13 composed of a thermistor or the like for detecting the temperature in the cleaning tank 4 and a motor 14 for sending the cleaning water accumulated in the drain 12 to the cleaning nozzle 10. Arrange the pump 15,
The washing water accumulated in the drain port 12 is circulated by the washing pump 15 and sprayed from the washing nozzle 10 to wash the dishes 3.

  Further, a lid 16 for closing the opening 2 is disposed above the housing 1 and 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. The elastic sealing member 18 that seals the opening 2 is fixed, and when the cleaning tank 4 is pulled out, the sealing member 18 is configured to escape upward so as not to interfere with the movement of the cleaning tank 4 back and forth.

  Further, an exhaust port (not shown) for discharging the air in the cleaning tank 4 and a blower means 20 for supplying outside air into the cleaning tank 4 are provided, and the humid air in the cleaning tank 4 is exhausted in the drying process. It is set as the structure discharged | emitted out of the washing tank 4 through. A controller 21 that controls the operation of the dishwasher is disposed on the front surface of the front wall of the washing tub 4.

  The control unit 21 shown in detail in FIG. 2 sequentially controls each process of washing, rinsing, and drying, stores information related to the operation progress state, reads information, writes and erases the memory 22, and the memory The state detection means 24 for writing information relating to the driving progress state for each driving to the 22, the second display unit 25 for displaying the information written in the memory 22, and reading and writing of information to the memory 22 A memory control unit 23 is provided that can control and display information written in the memory 22 on the second display unit 25 by operating. In addition, this control part 21 is covered with the cover 26 at least the front side of the dishwasher as shown in FIG.

  The information related to the operation progress state is set as at least one of the number of operations, the operation time, or the number of times that the temperature detecting means 13 has reached the predetermined temperature in the cleaning tank 4. Regarding the control of the memory 22, by applying a predetermined operation to the operation unit 6 or the memory control unit 23, it is possible to display information on the driving progress state on the second display unit 25, and a new operation It is also possible to write information relating to the elapsed state into the memory 22.

  Next, the detailed configuration, operation, and action of the control unit 21 will be described using the flowchart of FIG. When the user operates the operation unit 6 and starts driving, the memory 22 is first checked, and whether or not there is a driving progress state A (accurately, information A relating to the driving progress state, hereinafter referred to as this). Is confirmed (step 27). Considering the unused state at the time of shipment from the factory, since the operation progress state A does not exist, the operation progress state B is checked next (step 28). Here, a predetermined value is input to the operation progress state B in the manufacturing stage in advance to the control unit 21 shipped in the product state. That is, it is determined that the driving progress state B exists.

  Next, it is confirmed whether or not the operation progress state C obtained by adding the operation progress state A and the operation progress state B is less than a predetermined value X (step 29). If it is less than the predetermined value X, that is, if inspection is not yet required, the steps of washing, rinsing and drying are operated, and the operation is terminated by adding the number of times or time to the operation progress state A (steps 30 and 31). Here, the predetermined value X is at least one of the number of operation times or operation time that requires inspection by a service person due to long-term use, or the number of times that the temperature in the cleaning tank 4 has reached a predetermined temperature by the temperature detection means 13. Is set. Conceptually expressed as the predetermined value X, but not limited to one value, a plurality of values of the above items may be used in combination.

  In operation for the first time of use, since the operation progress state A does not exist, the step 28 for confirming the operation progress state B is operated. However, once the operation is performed, the number of times or time is added to the operation progress state A. From the next time, the operation progress state B is not confirmed.

  Further, if the operation progress state C becomes equal to or greater than the predetermined value X in step 29 due to long-term use, it is determined that inspection is necessary due to long-term use, and the inspection notification mode for informing the user of the inspection time by warning or display is entered. Transition is made (step 32).

  When the operation progress state A and the operation progress state B do not exist in the memory 22, the memory abnormality mode for notifying the user or service person of the abnormality by voice or LED display is operated, and the normal driving operation is not executed ( Step 33).

  Next, a case where the control unit 21 is replaced due to failure or repair will be described. Note that the repair / replacement control unit 21 uses an operation progress state A and an operation progress state B of the memory 22 in which nothing is stored.

  First, before the replacement, a service person performs a predetermined operation on the operation unit 6 or the memory control unit 23 to display the driving progress state C on the second display unit 25 and take a memo as the number of driving times or the driving time. Next, the previous control unit 21 is removed, and a new control unit 21 is attached to the main body. Then, by a predetermined operation on the operation unit 6 or the memory control unit 23, an operation for writing the number of operations or operation time in which the memo has been taken to the memory 22 is performed. After that, operation check is performed to check whether normal operation such as washing, rinsing, and drying works. When the regular work is performed in this way, it is determined that the driving progress state B exists in the step 28 for checking the driving progress state B, so that the normal operation is possible thereafter.

  On the other hand, if this writing operation is omitted or forgotten, the operation progress state B remains absent, and it is determined in step 28 of the above-described operation progress state B that the operation progress state B does not exist. The memory abnormality mode in which a warning is given by the voice or the first display unit 7 or the second display unit 25 when the operation is confirmed after the operation is confirmed, and the information related to the operation progress state is not taken over. Will be notified to the service person.

  In other words, when the control unit 21 is replaced due to a failure or repair, it is impossible to use the information unless the information related to the operation progress state is succeeded. Information will be inherited. As a result, conventionally, when the control unit is replaced, information related to the operation progress state may not be taken over, and it may not be possible to reliably warn the user when the inspection is necessary. According to the machine, it is possible to accurately and surely notify the user when the inspection and repair are necessary.

  However, in order for information related to the driving progress state to be normally taken over, it is necessary that information related to the correct driving progress state is stored in the memory 22, but the memory control unit 23 is controlled by the control unit 21. The control unit 21 is covered with the cover 26, and the memory control unit 23 can be operated only after the cover 26 is removed by a serviceman, so that the user can operate the memory control unit 23 by mistake. The information related to the driving progress state in the memory 22 can be prevented from being erroneously changed, and the information related to the correct driving progress state is stored in the memory 22, and in this embodiment, Therefore, it becomes possible to inform the user when it is necessary to check and repair more reliably.

In addition, the display unit is divided into a first display unit 7 that displays the operation status and a second display unit 25 that displays information written in the memory 22, and the second display unit 25 is covered with a cover 26. By disposing the control unit 21 that cannot be touched by the user, it is possible to prevent the information related to the driving progress state in the memory 22 from being changed by the user by mistake, and the display unit that the user normally recognizes The (first display unit 7) can be simplified, and a user-friendly display can be performed. Further, during repair and inspection, by displaying predetermined information on the operation unit 6 or the memory control unit 23, information on the driving progress state is displayed on the second display unit 25, which should also be dedicated to the serviceman, so that the serviceman Inspection and repair work can be performed reliably and efficiently.

  In addition, by performing a predetermined operation in the operation unit 6 or the memory control unit 23, information related to the progress of the operation stored in the memory 22 is displayed on the second display unit 25, and after confirming visually, the serviceman However, by making it possible to erase the information related to the operation progress state of the memory 22, when writing the information related to the new operation progress state, it is possible to prevent erroneous writing and to perform erroneous writing by any chance. If this happens, you can start over.

  Note that the information written in the memory 22 by the service person on the second display unit 25 is the first that the user sees during use in the case of the configuration by either the operation unit 6 or the memory control unit 23. The purpose of improving the usability by simplifying the display unit 7 is achieved. However, when the operation unit 6 is configured to operate, the user erroneously operates the same switch and erroneously operates the information. May be rewritten. In addition, according to the present invention, since the information related to the operation progress state written in the memory 22 is displayed on the second display unit 25 that cannot be seen while the user is in use, the user enters the rewrite mode. There is an increased risk that information will be rewritten without realizing that it has been lost. On the other hand, the configuration by the operation of the memory control unit 23 has a unique effect that there is no possibility of such information being erroneously rewritten by the user.

  In this embodiment, a predetermined operation is performed in the operation unit 6 or the memory control unit 23, and the second display unit 25 is read to read and write information related to the driving progress state. If a connector capable of connecting the memory 22 and an external device is arranged in the unit 21, and a service person connects a predetermined external device, reads and writes information in the memory 22, more information is taken over. Can be easily achieved, and at the same time, it is possible to cope with a case where the control unit 21 fails and the power cannot be turned on.

  Further, in the present embodiment, the memory 22 is configured so as not to be removable from the control unit 21 to suppress the manufacturing cost. However, the memory 22 is configured to be removable in order to simplify the work by the service person. Thus, it is naturally possible to easily carry over all information.

  As described above, the dishwasher according to the present invention is a dishwasher for washing an object to be cleaned, and is based on an operation unit for inputting an instruction to the dishwasher and control information input to the operation unit. A control unit that controls the operation of the dishwasher and is covered with a cover, and a first display unit that displays the operation status of the dishwasher, and the control unit stores information related to the progress state of the operation. A memory capable of reading and writing information; a memory control unit for controlling reading and writing of information to the memory; and information written in the memory is displayed by an operation in the operation unit or the memory control unit. By having two display units, the display unit used by the user can be simplified, an easy-to-understand display is possible, and an easy-to-use dishwasher can be obtained. Runode, is useful as a dishwasher or the like for home to wash the dishes, and the like.

6 Operation Unit 7 First Display Unit 21 Control Unit 22 Memory 23 Memory Control Unit 25 Second Display Unit 26 Cover 27-33 Steps

Claims (2)

A dishwasher for washing an object to be cleaned, an operation unit for inputting an instruction to the dishwasher, and controlling the operation of the dishwasher based on control information input to the operation unit and the front of the dishwasher A control unit whose side is covered with a cover, and a first display unit that displays the operation status of the dishwasher to the user, the control unit can store information related to the progress of the operation and can read and write information A memory control unit for controlling reading and writing of information to the memory, and a second display unit for displaying information written in the memory by the operation unit or an operation in the memory control unit Yes, and dishwasher the second display portion is covered with the cover. The dishwasher according to claim 1, wherein the operation unit is disposed on a front surface of a main body of the dishwasher.

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