JP2013048940A - Dishwasher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dishwasher in which it can be understood whether an inspection associated with long-term use has already completed or not in a case where the operation cumulative time memorized in a memory unit exceeds a given operation cumulative time when a repair/inspection worker gives the inspection.SOLUTION: In the dishwasher, when it is determined that an operation time period longer than a predetermined time period has elapsed on the basis of information relating to the process state of operation stored in the memory unit 23, the information relating to the process state of operation stored in the memory unit 23 is updated upon the inspection so that it can be understood that the inspection associated with the elapse of a long-term operation more than the predetermined time period is completed upon the next or later inspection.

Description

  The present invention relates to a dishwasher for cleaning an object to be cleaned such as tableware using cleaning water.

  In general, a dishwasher is subject to temperature and chemical deterioration due to the effects of heating by a heater, detergent, oil washed away from the object to be washed, etc. due to long-term use. In such cases, it is desirable to perform inspections by repair / inspection workers.

  On the other hand, in an electrical device that requires reliability and safety, the counted operation time is stored in the memory using a memory as a storage means, and automatically when the operation integration time etc. exceeds a predetermined value. There is a technique for informing the user of the inspection time by warning and displaying 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 operation time or the like. In addition, when the memory is replaced due to a failure or repair within the specified accumulated operating time, the repair / inspection operator reads the accumulated operating time etc. from the memory by an external operation, and stores the information in a new memory. It is of course possible to take over the accumulated operation time before replacement by writing.

Japanese Patent No. 2666363

  However, in such a conventional technique, when a predetermined accumulated operation time is reached, the user is warned and displayed the inspection time, and the repair / inspection operator performs an inspection. By clearing (to 0), the display of inspection will be canceled, but the user will continue to use the dishwasher after the inspection is completed, so when the predetermined accumulated time is reached again This will cause the user to be warned and displayed for inspection. When the inspection indication is made, it is determined that the inspection is possible, but it is difficult to guarantee the reliability and safety because the usage period in which the reliability and safety can be secured has already been exceeded. This is misleading to the user. The real problem is that even if there is a need for repair, there are no replacement parts. In this way, there is a problem of misleading the user.

  The present invention solves the above-described conventional problem, and when inspection by long-term use is completed, the inspection display is not performed regardless of the accumulated operation time of the subsequent dishwasher. It is an object of the present invention to provide a dishwasher that does not give misunderstandings to the user.

In order to achieve the above object, the present invention is a dishwasher for washing an object to be cleaned, which is based on operating means for inputting instructions to the dishwasher and control information input by the operating means. A control means for controlling the operation of the dishwasher, a display means for displaying the operation status of the dishwasher, and a storage means for storing information relating to the progress of the operation, and capable of reading and writing information. In the dishwasher that informs the inspection of the dishwasher by the display means when it is determined from the information relating to the progress state of the operation stored in the storage means that the display means has passed, By rewriting the information related to the progress state of the operation stored in the storage means, the inspection accompanying the elapse of the operation exceeding the predetermined value at the subsequent inspection is completed. It is the dishwasher to be seen that is. As a result, when the repair / inspection operator performs an inspection, if the accumulated operation time stored in the storage means exceeds the predetermined accumulated operation time, it can be determined whether or not the inspection has been completed due to long-term use. You can respond accordingly.

  The dishwasher according to the present invention is designed to prevent the second and subsequent inspection indications from being performed even if the predetermined accumulated operation time is reached again after the inspection after receiving the first inspection indication. You can avoid giving.

The longitudinal cross-sectional view of the dishwasher of Embodiment 1 of this invention The block diagram of the control apparatus of the dishwasher of Embodiment 1 of this invention The figure which shows the operation means and display means of the dishwasher of Embodiment 1 of this invention The flowchart which shows the driving | operation operation | movement of the dishwasher of Embodiment 1 of this invention. The flowchart which shows the demonstration driving | operation operation | movement at the time of repair and inspection 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 means for inputting the instruction | indication to a dishwasher, Operation control of a dishwasher based on the control information input by the said operation means Control means for performing, display means for displaying the operation status of the dishwasher, and storage means for storing information related to the progress of the operation and capable of reading and writing information, the control means in the storage means In the dishwasher that informs the dishwasher inspection by the display means when it is determined from the stored information related to the progress state of the operation that the operation of a predetermined value or more has elapsed, it is stored in the storage means at the time of inspection. By rewriting the information related to the progress state of the operation, it is understood that the inspection accompanying the operation exceeding the predetermined value has been completed during the subsequent inspection. As a result, when the repair / inspection operator performs an inspection, if the accumulated operation time stored in the storage means exceeds the predetermined accumulated operation time, it can be determined whether the inspection has been completed due to long-term use. , Can respond accordingly.

  According to a second invention, in the first invention, the information relating to the progress of the operation stored in the storage means is at least two values corresponding to whether or not the operation of the predetermined value or more has elapsed. By adopting a configuration with operation flags that can be set selectively, it is possible to make the control device simple and inexpensive by making it possible to judge the progress of operation with digital operation flags together with actual data such as operation integration time. It can be configured, and a reliable and stable control operation can be performed.

  In a third aspect based on the second aspect, the control means uses the display means according to the value of the operation flag when the operation exceeding the predetermined value has elapsed during normal operation by the user. By adopting a configuration in which the display and non-display of inspections are made different, it is possible to prevent users from being misunderstood even if they continue to use the dishwasher after completion of inspections performed by repair and inspection workers. it can.

According to a fourth aspect of the present invention, in the second or third aspect of the present invention, the control means performs an operation of the predetermined value or more based on the value of the operation flag at the time of inspection / repair by a repair / inspection operator. With the configuration in which the repair / inspection worker is informed of whether or not the vehicle is operating, the operation / setting of the operation flag accompanying the inspection / repair by the repair / inspection operator can be surely performed.

  According to a fifth aspect of the present invention, in any one of the second to fourth aspects, when the storage unit is replaced at the time of inspection / repair, the control unit sets the operation progress state stored in the original storage unit. Such information is handed over to the new storage means, and the storage means is replaced in the inspection and repair by adopting a configuration in which the value of the operation flag can be changed according to the information related to the progress state of the operation. Even in this case, it is possible to set appropriate progress information of driving according to the progress of driving so far.

  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)
FIG. 1 shows a cross-sectional view of a dishwasher according to Embodiment 1 of the present invention. A housing 1 accommodated in a system kitchen has a washing tub 4 that has an opening 2 in the upper portion and accommodates and cleans dishes 3. Provided. 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, there are disposed an operation means 6 for turning on / off the power, selecting an operation course, and a display means 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, 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. The pump 15 is disposed, and 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.

  Moreover, the exhaust port 19 (not shown) which discharges the air in the washing tank 4 and the blowing means 20 which supplies external air into the washing tank 4 are provided, and the humid air in the washing tank 4 is exhausted at the time of a drying process. It is configured to discharge the cleaning tank 4 through the port 19. A control device 24 for controlling the operation of the dishwasher is disposed on the front surface of the front wall of the washing tub 4.

  FIG. 2 shows a block diagram of the control device for the dishwasher according to the first embodiment of the present invention. The control device 24 includes a load driving means 22 for driving the water supply means 5, the heating means 11, the washing pump 15 and the like, and an operation process. A storage means 23 capable of storing information related to the state and reading, writing, and erasing the information; and a control means 21 for sequentially controlling each process of washing, rinsing, and drying by exchanging information with the information; As the information for evaluating the operation progress state, any one of the operation integration time, the number of operations, or the energization time of the control device 24 is set. In the following description, it is assumed that the operation integration time is set.

  Regarding the control of the storage means 23, it is possible to display the driving progress state on the display means 7 by applying a predetermined operation to the operating means 6, and writing a new driving progress state in the storage means 23. It is possible.

  FIG. 3 is a diagram showing operation means and display means of the dishwasher according to the first embodiment of the present invention, FIG. 4 is a flowchart for the operation of the dishwasher, and FIG. 5 is a flowchart for the demonstration operation at the time of repair / inspection. The configuration, operation, and action of the control means 21 will be described.

  First, operations and effects in a normal use state by a user will be described with reference to FIGS. 3 and 4.

  The user presses the power off / on switch of the operation means 6. Subsequently, the operation is started by pressing the temporary stop / start switch (step S10). The control means 21 determines whether or not the operation flag n for starting the operation stored in the storage means 23 in advance is n = 1 (step S11). An inspection for shipping is performed at the time of factory shipment, and if normal, the operation flag n = 1 is written in the storage means 23. When the operation flag n = 0, it is determined whether the operation integration time is equal to or shorter than a predetermined time (step S12).

  If the accumulated operation time is within a predetermined time, it is determined that the operation is abnormal, and the display means 7 displays that the operation is abnormal and prevents operation (step S13). For example, when the control device 24 is replaced by repair, the factory flag is not inspected, so the operation flag n remains at the initial value 0. And since it is immediately after replacement | exchange, the driving | running integration time is less than predetermined time. The predetermined value is set to an accumulated operation time that requires inspection by a repair / inspection operator due to long-term use. For example, the time corresponding to 10 years of use (7000 hours) is set. When the control device 24 is replaced by repair or the like, it is necessary to set the operation flag to n = 1 or n = 0 by the method shown in the flowchart of the demonstration operation at the time of repair or inspection in FIG.

  If the accumulated operation time of the dishwasher exceeds a predetermined time, it is determined that the operation is normal, and the washing, rinsing, and drying processes are operated (step S14). After the operation is completed, the current operation time is added to the operation integration time and stored in the storage means 23 (step S15). Thereafter, the operation is terminated (step S16).

  Next, when the operation flag is n = 1 in step S11, it is determined whether or not the operation integration time exceeds a predetermined time (step S17). When the predetermined time is exceeded, the inspection lamp of the display means 7 is turned on in order to warn and display to the user that the inspection by long-term use is necessary (step S18). Next, each process of washing, rinsing and drying is operated (step S19), and the current operation time is added to the operation integration time and stored in the storage means 23 (step S15). Thereafter, the operation is terminated (step S16).

  Therefore, when the factory integrated state (operation flag is n = 1) and the accumulated operation time exceeds a predetermined value, the inspection lamp is always displayed, and the user is continuously warned and displayed. The user notices the inspection indication, requests the repair / inspection operator to inspect, and when the inspection is completed, the repair / inspection operator sets the operation flag to n = 0, and the subsequent inspection lamps are not displayed.

  Next, regarding the setting of the operation flag n = 1 by the process demonstration at the time of factory shipment, and the setting of the operation flag n = 0 by the work in which the inspection lamp is turned on and the repair / inspection worker performs the inspection work by long-term use The contents will be described with reference to FIGS.

The repair / inspection operator performs a predetermined operation by the operation means 6 and starts a demonstration operation (step S50). For example, the demonstration operation is started by pressing the power off / on switch while simultaneously pressing the course switch and the pause / start switch of the operating means 6 and then pressing the course switch several times. A dedicated switch may be provided, but this leads to an increase in cost. Therefore, a method that cannot be easily performed by the user using a switch that is used in normal operation is selected. The state of the operation flag is displayed using the display lamp of the display means 7 (step S51). For example, if the operation flag n = 1, the powerful lamp of the display means 7 is turned on, and if n = 0, the light is turned off. Thereby, the repair / inspection operator can easily confirm the operation flag visually.

  Next, the operation integration time is displayed by the display means 7 (step S52). For example, if the accumulated operation time is 1000 hours or more as a display method, the drying lamp is turned on, if 2000 hours or more, the reserved lamp is turned on, and if it is 4000 hours or more, the standard lamp is turned on and 8000 hours. In the above case, if a small amount of lamps are lit, the accumulated operation time can be displayed by a combination of lighting and extinguishing of the four display lamps. (The accumulated operation time when the small and dry lamps are turned on and the others are turned off is 9000 hours or more and less than 10,000 hours.) If the number of display lamps is increased, the accumulated operation time can be displayed in detail.

  Next, the operation flag displayed earlier is determined. If n = 0, it is determined whether or not it is in the write mode of the memory serving as the storage means 23 (steps S53 and S54). This demonstration operation is used not only for the process demonstration at the time of factory shipment and the inspection by the repair / inspection operator in normal use, but also when the control device 24 is replaced in the repair at the time of normal failure. When the control device 24 is replaced due to a failure after using the dishwasher for several years, the operation accumulated time is read from the storage means 23 (memory) of the old control device 24 in order to display an inspection, and the new control device 24 is used. It is necessary to write the data into the storage means 23 (memory) and take over the data. Therefore, by performing this demonstration operation, the repair / inspection operator can easily read, display, and write the operation integration time in one operation. Therefore, there is no mistake. When not only the memory writing mode but only the operation accumulated time display, the demonstration operation is terminated as described above (step S55).

  Next, when the control device 24 is replaced for repair and the accumulated operation time is written, in step S54, a predetermined operation is performed by the operation means 6 to set the writing mode of the storage means 23 (memory). For example, the memory write mode can be changed by pressing the pause / start switch once during the demonstration operation.

  Next, the operation integration time is input by a predetermined operation of the operation means 6 (step S56). For example, every time the course switch is pressed, the accumulated operation time is changed from 1000 → 2000 → 3000 →... → 8000 (hours). The inputted operation integration time is displayed on the display means 7 in the same manner as the above operation integration time display method (step S57). If the written operation accumulated time is correct, the memory writing is completed by pressing a predetermined operation of the operation means 6, for example, a temporary stop / start switch once (step S58).

  Next, it is determined whether the written operation accumulated time is equal to or less than a predetermined value (step S59). If it is equal to or less than the predetermined value, the operation flag n is set to 1 (step S60). This is because when the new control device 24 is used for repair, the operation flag n is 0 as it is. The accumulated operation time being equal to or less than the predetermined value is the same condition as the accumulated operation time at the time of shipment from the factory is approximately 0, and it is necessary to notify the user of the inspection when using the control device 24 after replacement. Then, the operation flag n = 1 is set in the same manner as at the time of factory shipment. As a result, even if repair is performed with the accumulated operation time being less than or equal to a predetermined value, the inspection lamp can be turned on in about 10 years with a long-term inspection display.

The operation flag n = 1 at the time of factory shipment can be set unconditionally by other means, but can also be performed as step S60 in the demonstration operation.

  Next, when the accumulated operation time written at the time of repair described above exceeds a predetermined value, the inspection / repair has already been completed, and the operation flag n = 0 is determined in step S59. The demonstration operation ends. This is because once the inspection / repair is completed, the inspection lamp is not displayed again even if the accumulated operation time exceeds a predetermined value.

  Next, the inspection will be described. The case where the inspector confirms the driving flag n by the demonstration operation is usually the case where n = 1 in the determination of step S53. When checking by the check notification, since the accumulated operation time exceeds the predetermined value, the operation flag n = 0 is set by the determination in step S62 (step S63), and the demonstration operation is written in the memory (step S64, S55). This is because once the inspection / repair is completed, the inspection lamp is not displayed again even if the accumulated operation time is equal to or greater than the predetermined value.

  In the conventional dishwasher, the memory of the storage means 23 is cleared at the time of inspection, and the accumulated operation time is returned to 0. This is misleading to the user. Usually, after 20 years, there is no repair / replacement part, and there is a problem of sending an erroneous message to the user that repair or inspection can be performed.

  In the present invention, the check lamp can be prevented from turning on again by setting the operation flag in step S63 to n = 0 while keeping the operation integration time as it is. If the accumulated operation time is less than the predetermined value at the time of inspection, it is necessary to notify the inspection after that, and the operation flag n remains n = 1 without being changed by the determination in step S62.

  In the present embodiment, the driving flag n can take a binary value of 0 and 1. However, it may be possible to distinguish two or more states so as to take a binary value or higher. For example, it is possible to take three values so that the three states can be distinguished depending on whether or not the accumulated operation time exceeds a first predetermined value and whether or not the second predetermined value is also exceeded. It is possible, and more detailed inspection and repair can be made possible.

  As described above, the replacement of the control device 24 at the time of repair due to failure, the operation of hiding the check lamp at the time of long-term use, and the writing of the operation flag at the time of shipment of the dishwasher at the factory are all referred to as demo operation. The failure / inspection operator can easily operate without mistakes and without performing a plurality of methods and means.

  Further, once the inspection lamp is turned on and the repair / inspection worker completes the inspection, the inspection lamp can be prevented from being turned on again, so that the user is not misunderstood. In addition, even if the inspection is completed, the data can be saved without resetting the data of the accumulated operation time.

  Further, as information relating to the progress state of the operation stored in the storage means 23, an operation flag that can selectively set a binary value of 0 or 1 in correspondence with whether or not the operation of a predetermined value or more has elapsed. By providing n, it is possible to configure the control device 24 simply and inexpensively by allowing the operation progress state to be determined by the digital operation flag n together with the actual data such as the accumulated operation time, so that it is reliable and stable. A control operation can be performed.

In addition, in the normal operation by the user, when the operation exceeding a predetermined value has elapsed, the display / non-display of the inspection by the display means 7 is made different depending on the value of the operation flag n. Even if the dishwasher continues to be used after the inspection performed by the inspection operator, it is possible to prevent the user from being misunderstood.

  In addition, at the time of inspection / repair by the repair / inspection operator, the repair / inspection operator can be informed whether or not the operation exceeding the predetermined value has elapsed based on the value of the operation flag n. Work such as setting of an operation flag accompanying inspection and repair by an inspection operator can be surely performed.

  Further, when the storage means 23 is replaced at the time of inspection and repair (in this embodiment, it is assumed that the entire control device 24 equipped with the storage means 23 is replaced), the operation progress state stored in the original storage means Even if the storage means 23 is replaced in the inspection and repair by changing the value of the operation flag n according to the information related to the progress state of the operation, the information related to Appropriate driving progress information can be set according to the driving driving status up to that point.

  In the present embodiment, the accumulated operation time is stored in the storage unit 23, but the same effect can be obtained by the number of operations or the energization time to the control device 24.

  Moreover, although the display means 7 was comprised with the some display lamp, if it is a 7 segment number display lamp, the driving | operation integrated time can be displayed in detail.

  In addition, although the demonstration operation is performed by a predetermined operation of the operation unit 6, a dedicated switch for performing the demonstration operation may be provided in the control device 24.

  In addition, the rewriting setting of the operation flag accompanying the replacement of the control device 24 and the takeover writing of the operation integration time are performed by a predetermined operation of the operation means 6, but a dedicated switch may be provided in the control device 24 or externally. You may carry out from connected apparatuses, such as a memory writer.

  As described above, the dishwasher according to the present invention includes an operation unit for inputting an instruction to the dishwasher, a control unit that performs operation control of the dishwasher based on control information input by the operation unit, A display means for displaying the operation status of the dishwasher, and a storage means for storing information related to the progress of the operation and capable of reading and writing the information, and the control means is configured to store the information on the operation stored in the storage means. In the dishwasher that informs the dishwasher inspection by the display means when it is determined from the information relating to the progress state that the operation of a predetermined value or more has elapsed, the progress state of the operation stored in the storage means at the time of inspection By rewriting the information related to, the inspection progress is not displayed again regardless of the operation progress state while the operation progress information remains.・ At the time of inspection carried out by the inspection operator, it is possible to prevent the inspection display from being performed regardless of the operation time and the number of operations of the subsequent dishwasher, so there is no misunderstanding to the user or dissatisfaction due to the absence of replacement parts. Therefore, the present invention is useful as a dishwasher or the like for cleaning an object to be cleaned such as dirty tableware using a cleaning water containing a detergent.

6 Operating means 7 Display means 21 Control means 22 Load driving means 23 Storage means (memory)
24 Control device

Claims (5)

A dishwasher for washing an object to be cleaned, operation means for inputting an instruction to the dishwasher, control means for controlling operation of the dishwasher based on control information input by the operation means, and dishwasher Display means for displaying the operating status of the machine, and storage means for storing information related to the progress of the operation and capable of reading and writing information, and the control means stores the progress of the operation stored in the storage means In the dishwasher that informs the dishwasher of inspection by the display means when it is determined from the information relating to the state that the operation of a predetermined value or more has elapsed, at the time of inspection, the operation progress state stored in the storage means By rewriting such information, it is possible to know that the inspection accompanying the operation exceeding the predetermined value has been completed during the subsequent inspection. There machine. The information relating to the progress state of the operation stored in the storage means includes an operation flag that allows at least two values to be selectively set in correspondence with whether or not the operation of the predetermined value or more has elapsed. 1. The dishwasher according to 1. The control means is configured to make the display / non-display of the inspection by the display means different according to the value of the operation flag when the operation of the predetermined value or more has elapsed during normal operation by the user. Item 2. A dishwasher according to Item 2. The control means is configured to notify the repair / inspection operator whether or not the operation exceeding the predetermined value has elapsed based on the value of the operation flag at the time of inspection / repair by the repair / inspection operator. The dishwasher according to claim 2 or 3. When the storage means is replaced at the time of inspection / repair, the control means takes over the information related to the progress of the operation stored in the original storage means to the new storage means, and the information related to the progress of the operation. The dishwasher according to any one of claims 2 to 4, wherein the value of the operation flag can be changed according to the condition.

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