JP5212424B2 - dishwasher - Google Patents

Description

  The present invention relates to a dishwasher.

  In general, in a dishwasher, the deterioration of parts in terms of temperature and chemicals progresses due to the use of a heater for a long period of time and the effects of oil, etc. 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 / display the inspection time to the user by detecting a predetermined accumulated energization time, the accumulated number of operations, 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. A switch such as a button for controlling the operation can be operated by the user, and the user performs an incorrect operation, which causes a problem that the operation time and the number of operations are erroneously rewritten. In addition, by providing means for displaying the operation time, the number of operations, etc. in the product outline, there is a problem that the display unit unnecessary for the user is provided and the usability is deteriorated.

  The present invention solves the above-described conventional problems, prevents the user from accidentally rewriting the operation time and the number of operations, and accurately and reliably informs the user when the inspection / repair is necessary. It becomes possible.

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 performs operation control of the dishwasher and is covered with a cover; and a display unit that displays an operation status of the dishwasher, wherein the control unit records information on a progress state of the operation and reads the information. A user having a writable memory and a memory control unit that is operated to display information written in the memory on the display unit and that can be operated by removing the cover from the dishwasher body. Will not accidentally operate the memory control unit, and will not accidentally rewrite the operation time or the number of operations, and the user will be able to accurately check when repairs are required. It can be notified to become.

  The dishwasher according to the present invention makes it possible to notify the user of the time when inspection / repair is necessary accurately and reliably by preventing the user from performing an erroneous operation.

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. The longitudinal cross-sectional view of the dishwasher of Embodiment 2 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 is covered and covered with a cover, and a display unit that displays the operation status of the dishwasher, the control unit records information related to the progress of the operation, and can read and write information, and It is operated to display information written in the memory on the display unit, and the cover is removed from the dishwasher main body so that the memory control unit can be operated. It is no longer necessary to erase or rewrite the information related to the progress state, and the user can be informed accurately when the inspection / repair is necessary.

  According to a second aspect of the invention, the display unit displays the operation status of the dishwasher and displays the information written in the memory, the first display unit not covered by the cover, and is arranged in the control unit. The second display unit can be separated from the display of the driving status and the information written in the memory, so that the user does not misrecognize the driving status display and is surely driven. Is possible. In addition, it is possible to realize a dishwasher that has no display portion unnecessary for the user in normal use and is easy to use.

  In the third aspect of the invention, the display unit is arranged on the front surface of the main body of the dishwasher, so that the display can be confirmed even when the dishwasher is in use, and the usability 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 are disposed an operation unit 6 for turning on / off the power source, selecting an operation course, and a display unit 7 for displaying each state.

  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, outside the washing tank 4 is a washing tank 4.
A temperature detecting means 13 constituted by a thermistor or the like for detecting the temperature inside and a cleaning pump 15 having a motor 14 for sending cleaning water stored in the drain port 12 to the cleaning nozzle 10 are arranged and stored in the drain port 12. The washing water 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, records information related to the operation progress state, reads information, writes and erases, and the memory 22 includes a state detection means 24 for writing information relating to the driving progress state for each driving, and a memory control unit 23 operated to display the information written in the memory 22 on the display unit 7, The control unit 21 is covered with a cover 25 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, it is possible to display information related to the driving progress state on the display unit 7 by applying a predetermined operation to the operation unit 6 or at least the memory control unit 23, and a new driving progress state. It is also possible to write information relating to the above in 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 26). 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 27). 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 equal to or less than a predetermined value X (step 28). If it is less than or equal to the predetermined value X, that is, if inspection is not yet required, the washing, rinsing and drying processes are operated, the number of times or time is added to the operation progress state A, and the operation is terminated (steps 29 and 30).

  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.

  Since the driving progress state A does not exist in the first driving operation, step 27 for checking the driving progress state B is operated. However, once the driving is performed, the number of times or time is added to the driving progress state A. From the next time, the operation progress state B is not confirmed.

  In addition, if the operation progress state C becomes equal to or greater than the predetermined value X in step 28 due to long-term use, it is determined that inspection is necessary due to long-term use, and the inspection notification mode that informs the user of the inspection time by warning or display is entered. Transition is made (step 31).

  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 32).

  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, the 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 display unit 7 and take a note 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. And the operation | work which writes the frequency | count of driving | operation or driving | operation time which took the memo just before to the memory 22 by the predetermined | prescribed operation to the memory control part 23 at least 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 step 27 of the driving progress state B confirmation, and thereafter, normal operation is possible.

  On the other hand, if this writing operation is omitted or forgotten, the driving progress state B remains nonexistent, and it is determined in step 27 of the above-described driving progress state B that the driving progress state B does not exist. When the operation is confirmed after the operation, a memory abnormality mode in which a warning is given by the voice or the display unit 7 is operated to notify the serviceman that the information relating to the operation progress state has not been taken over.

  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 reliably notify the user when it is necessary to inspect and repair.

  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. By covering the control unit 21 with the cover 25, the memory control unit 23 can be operated only after the cover 25 is removed by a serviceman, and the user does not accidentally operate the memory control unit 23. 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. In this embodiment, the information is more reliable. It is possible to inform the user when the inspection / repair is necessary.

(Embodiment 2)
Further, as shown in FIG. 4, the display unit is divided into a first display unit 33 that displays the driving situation and a second display unit 34 that displays information written in the memory 22, and the second display unit 34. Is disposed in the control unit 21 that is covered by the cover 25 and cannot be touched by the user, so that it is possible to prevent information related to the driving progress state in the memory 22 from being erroneously changed by the user. The display unit that is normally recognized can be simplified, and a user-friendly display can be performed.

  In addition, by performing a predetermined operation in the operation unit 6 or at least the memory control unit 23, it is possible for the serviceman to erase the information related to the driving progress state of the memory 22, so that it relates to the new driving progress state. When writing information, if it is written incorrectly, it can be redone.

  In the present embodiment, a predetermined operation is performed in the operation unit 6 or at least the memory control unit 23, and the display unit 7 is read to read and write information related to the driving progress state. If a connector that can connect the memory 22 to an external device is arranged, and a service person connects a predetermined external device and reads / writes information in the memory 22, more information can be easily transferred. At the same time, it is possible to cope with the case where the control unit 21 fails and the power is not 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 display unit that displays the operation status of the dishwasher. The control unit records information related to the progress of the operation and reads the information. And a writable memory and a memory control unit that is operated to display information written in the memory on the display unit and that can be operated with the cover removed. It is possible to prevent the memory control unit from being operated, and it is no longer necessary to rewrite the information related to the operation progress state, so that the user knows exactly when inspection and repair are necessary. So it can be useful to be cleaned, such as soiled dishes as dishwasher or the like for washing with washing water containing detergent.

6 Operation part 7 Display part 21 Control part 22 Memory 23 Memory control part 25 Cover 26-32 Step 33 1st display part 34 2nd display part

Claims (3)

A dishwasher for washing an object to be cleaned, an operation unit for inputting an instruction to the dishwasher, and operation control of the dishwasher based on control information input to the operation unit and being covered with a cover A control unit, and a display unit for displaying the operation status of the dishwasher, wherein the control unit records information related to a progress state of the operation and can read and write information, and is written in the memory A dishwasher having a memory control unit which is operated to display information on the display unit and which is operable by removing the cover from the dishwasher body . The display unit displays the operation status of the dishwasher and displays a first display unit that is not covered by the cover, and information that is written in the memory, and a second display that is disposed in the control unit. The dishwasher according to claim 1, further comprising: The dishwasher according to claim 1, wherein the display unit is disposed on a front surface of a main body of the dishwasher.

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