JPH01111485A - Preparation device for potable water - Google Patents

Abstract

PURPOSE:To report clearly the replacement period of a purifying section constituted of a filter agent and the like by providing a replacement period reporting means actuated when the measured time required for storing the preset volume of potable water reaches a given preset time corresponding to the degree of deterioration of the purifying section. CONSTITUTION:The time required from the start of putting the water in to the storing a preset volume of potable water (mineral water) 18 in a drinking water storing container (mineral water storing container) 7 is put out by a time measuring means 78 basing on a sensing output signal from a sensor 66. The measured time thus put out is compared with the given preset time basing on the degree of deterioration of a purifying section 5 by a comparison means 83. As a result of said comparison, a replacement period reporting means (replacement period reporting lamp) 75 is actuated for reporting that passing capability (purifying capability) of the purifying section 5 is lowered and that the replacement period of the purifying section 5 is up when said measured time reaches the given time to report the replacement period of the purifying section 5 to workers.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to an apparatus for producing drinking water such as mineral water, which has a function of indicating when to replace a purifying section made of a filtering agent or the like.

(Prior art) As a conventional manufacturing device of this type, for example,
As proposed in Publication No. 0152, it has a purification section consisting of a raw water supply container, a filtering agent, etc., a pump, and a drinking water storage container, and the pump purifies raw water such as tap water from the raw water supply container. It is known that drinking water is purified by passing through a drinking water tank and stored in a drinking water storage container. In this device, when the raw water passes through the purification section, impurities such as dirt and gas contained in the raw water are adsorbed and removed by a filtering agent such as activated carbon, and the purified drinking water is stored. The purification section is usually provided in a replaceable manner because the adsorption of impurities causes deterioration of the purification section, such as a decrease in purification ability.

(Problem to be solved by the invention) As described above, the purification unit needs to be replaced when it deteriorates. For example, the device should be marked with a message urging periodic replacement, such as "Replace once a year." However, it is rare to memorize the initial period of use and replace it regularly once a year, and it is often used as is even after the replacement period has passed.

Furthermore, since the amount of impurities contained varies depending on the raw water used and the rate of deterioration of the purification section changes, the appropriate replacement timing varies depending on the raw water, and it is difficult to set a general replacement timing. In this way, the appropriate replacement period is unclear, so even if the replacement period has passed and the purification ability has decreased, it is often continued to be used, making it impossible to fully draw out the original purification ability, and removing adsorbed impurities. There was a problem that this caused sanitary problems.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a drinking water production device that can detect a decrease in the performance of a purification unit and clearly notify an appropriate time for replacement.

[Structure of the Invention] (Means for Solving Problems) As shown in FIG. 1, the present invention detects that a preset amount of drinking water 18 is stored in the drinking water storage container 7. a senna 66; a timer 78 for measuring the time required for the predetermined amount of drinking water to be stored based on the detection output of the senna 66; Time and the clocking means 78
and a comparison means 83 for comparing the measured time with the time measured by the purifying section 5, and a replacement time notification means 75 for notifying when the measured time reaches a predetermined time.

(Function) In the present invention, the time elapsed from the start of water flow until a preset amount of drinking water 18 is stored in the drinking water storage container 7 is outputted by the timing means 78 based on the detection output of the sensor 66, When this measured time reaches a predetermined time set in advance based on the degree of deterioration of the purification section 5, the passage ability (purification ability) of the purification section 5 has decreased and it is assumed that it is time to replace it, and the replacement time notification means 75 is activated. Make announcements.

(Example) Hereinafter, an example of the present invention will be described with reference to the accompanying drawings.

3 to 8 show a mineral water manufacturing apparatus, 1 is a machine body, which consists of a base 2, a machine frame 3 extending from the center of the upper part of the base 2 to one side, and It is composed of two covers 4 and 4A provided on the upper part of the machine frame 3, and in the center of the machine body 1, an extraction cartridge 5 having a purification section is removably installed inside the machine frame 3. A raw water supply container 6 is provided on one side of the machine body 1 and is located inside the machine frame 3, and a mineral water supply container 6 is provided on the other side of the machine body 1 and is formed of a light-transmitting material and is located outside the machine frame 3. A water storage container 7 is provided.

Reference numeral 8 denotes a water tray provided on one side of the base 2. The water tray 8 has a raised push-up m9, and a float switch 10 is provided inside the water tray 8. On the other hand, a cap 12 is removably screwed onto a water supply port 11 formed at the lower end of the raw water supply container 6, and a water supply valve 13 is provided on the cap 12 in correspondence with the push-up rod 9. It is being Then, open the cover 4 and insert the raw water supply container 6 into the water tray 8 from the upper opening of the machine frame 3.
When set in the upper position, the water supply valve 13 is pushed up by the push-up rod 9 to open the water supply valve 13, and the raw water 14 in the raw water supply container 6 is supplied into the water tray 8 and maintained at a predetermined water level according to Torricelli's principle. Ru. In addition, the float switch 10
When the raw water 14 in the water receiving tray 8 falls below a set water level, it is detected that the raw water 14 in the raw water supply container 6 has run out and the pump, which will be described later, is stopped.

Reference numeral 15 denotes a cradle for the extraction cartridge 5, which is located at the center of the base 2 and installed in a direction perpendicular to the longitudinal direction of the machine body 1. On the center side of the cradle 15, there is a cradle for feeding the raw water 14. A fitting receiving part 17 having a pipe connecting part 16 is provided, and the receiving base 1
A fitting receiving part 20 having a pipe connection part 19 for draining mineral water 18, which is drinking water passed through the extraction cartridge 5 and extracted, is provided on one side of the holder 15, and a fitting receiving part 20 is provided on the other side of the receiving pedestal 15. A saucer 22 for mineral extract liquid 21 is provided. Further, the receiving tray 22 is provided with a pipe connection portion 23 for sending out the mineral extract liquid 21 and a push-up rod 24, and the receiving tray 15 is provided with a detection switch 25 for the extraction cartridge 5. On the other hand, the extraction cartridge 5 has three chambers 26, 26A and 26B, and the central chamber 26 has a gasket 27A fitted into the fitting receiving part 17.
A water inlet portion 27 with a water inlet portion 27 is formed protrudingly from the lower end portion, and a water inlet portion 27 with a
Inside 6, activated carbon i28 serving as a purifying section is disposed at the bottom, an ion exchange resin layer 29 at the center, and ceramic waste 30 at the top. In addition, a drain port 31 with a gasket 3iA that is fitted into the fitting receiving part 20 is formed protruding from the lower end of the - side chamber 26A, and a mineral-containing stone layer (for example, Maifan stone) is formed in the chamber 26A.

Calcite (trade name) 32 is disposed in the upper part, and a fibrous layer (for example, Diapore (trade name)) 33 having a purifying function is disposed in the center and lower part, respectively, and the chamber 2G and the chamber 26A
A communication port 34 is formed at the upper end. Further, a mineral extract liquid supply container 35 is provided in the other side chamber 26B, and a valve body 37 is provided at the extract supply port 36 at the lower end of this mineral extract liquid supply container 35 in correspondence with the push-up rod 24. is provided. Then, open the cover 4A and insert the extraction cartridge 5 into the cradle 1 through the top opening of the machine frame 3.
5, the water inlet portion 27 is set on the fitting receiving portion 17.
The drain port part 31 is fitted into the fitting receiving part 20, and the valve body 37 is pushed up by the push-up rod 24 to open the valve body 37, thereby draining the mineral extract in the mineral extract liquid supply container 35. A liquid 21 is supplied into a saucer 22 and maintained at a predetermined level according to Torricelli's principle.

Further, the detection switch 25 prevents the pump, which will be described later, from being driven when the extraction cartridge 5 is not set. In this case, the fitting receiving part 20 having the drainage pipe connecting part 19 is fitted into the receiving hole 38 of the pedestal 15 so as to be able to slide laterally, and when the extraction cartridge 5 is set, the fitting receiving part 20 allows for movement. Further, the upper end portion of the pipe connection portion 23 provided on the saucer 22 faces the inside of the extract supply port 36.

39 is a pump for feeding the raw water 14 located inside the machine frame 3 and provided on the base 2; a suction port 40 of this pump 39 and a pipe connection provided at the bottom of the water tray 8; part 41 is connected to the water suction pipe 42, and the discharge port 43 of the pump 39 and the pipe connection part 16 of the pedestal 15 are connected to the water discharge pipe 4.
Connected by 4. On the other hand, one end of a mineral water outlet pipe 45 is connected to a drainage pipe connection part 19 provided on the pedestal 15, and an outlet 46 at the other end of the mineral water outlet pipe 45 is connected to the upper part of the machine frame 3. It is positioned above the mineral water storage container 7 and faces a protrusion 47 formed to protrude on the other side.

Reference numeral 48 denotes a pump for feeding the mineral extract liquid 21 located inside the machine frame 3 and provided on the pedestal 15, and a suction port 49 of this pump 48 and a pipe connection portion provided on the pedestal 22 are connected. 23 are connected by a liquid suction pipe 50, and an outlet 53 of a mineral extract liquid outlet pipe 52 connected to a discharge outlet 51 of the pump 48 faces into the raw water 14 supplied into the water receiver 8. The pump 48 is the tenth pump.
As shown in the figure, the pump 39 for the raw water 14 is driven intermittently for a very short time each time the raw water 14 is pumped for a predetermined period of time.
Mineral extract liquid 21 is 1.5c per 1000cc
I try to add about c.

Reference numeral 54 denotes a curved protrusion formed in a curved manner over the entire vertical width at the side edge of the spout of the mineral water storage container 7, and a curved recess 55 corresponding to the curved protrusion 54 is formed on the spout side edge of the mineral water storage container 7. It is formed over the entire vertical width of the center part of the other side of the frame 3, and when the mineral water storage container 7 is set on the other side of the upper part of the base 2, the curved protrusion 54 of the mineral water storage container 7 is formed on the other side of the machine frame 3. It is fitted into the curved recess 55. Further, the curved protrusion 54
Inside, a partition wall 57 having a reverse water hole 56 is provided horizontally and is located at a storage height corresponding to half of the minimum extraction amount specified by an extraction amount specifying means to be described later. A partition wall 59 having a vertical water passage hole 58 from the lower end to the height of the partition wall 57 is provided on both sides of the curved protrusion 54, and a float chamber 6 is provided at the bottom of the curved protrusion 54.
0 is formed. Further, a support rod 61 is formed upright at the bottom of the float chamber 60, and a float 62 made of a light-shielding material is provided on the support rod 61 so as to be movable up and down to a height at which it is secured to the partition wall 51. ing. On the other hand, a pair of left and right window holes 63 and 64 are formed facing each other in the curved recess 55 of the machine frame 3, corresponding to the position of the float 62 placed on the support rod 61. Light emitting element 6 on the side
5 is provided, and a light receiving element 6 is provided on the inner surface side of the other window hole 64.
5A is provided, and this light emitting element 65 and light receiving element 65
A constitutes a sensor 66. 67 is the light emitting element 6
5 and a light receiving element 65A are electrically connected to each other.

When the float 62 is placed on the support rod 61 in the extraction state after the mineral water storage container 7 is set, the light from the light emitting element 65 is blocked by the float 62, and the mineral water storage container 7 When the float 62 floats due to the mineral water 18 stored inside, the light from the light emitting element 65 is received by the light receiving element 65A, and a preset amount of mineral water 18 is released.
A signal is output to detect that the image has been extracted. On the other hand, in the state before extraction, if the mineral water storage container 7 is not set, the light from the light emitting element 65 or disturbance light will not be blocked by the float 62 and will reach the light receiving element 65A.
When the mineral water storage container 7 is received, a signal is output to detect that the mineral water storage container 7 is not set, and an alarm lamp 68 is lit to notify that the preparation is not completed. Further, the mineral water storage container 7 is provided with a lid 69, and the lid 69 has an extraction hole 69 corresponding to the outlet 046 of the mineral water outlet pipe 45.
A is provided.

Reference numeral 70 denotes an operation panel provided on the machine frame 3, and this operation panel 10 is provided with a start button 71 and one designation operation button 72A constituting extraction amount designation means 72. The operation panel 70 also has the specified operation button 72A.
Five display lamps 73.73A, 73B, 73C, which display the specified extraction amount in stages depending on the number of button presses.
73D is provided, and by pressing the button once, the minimum extraction amount, that is, IQ, which is twice the set extraction amount, for example, 0.59, is specified and the display lamp 73 lights up, and by pressing the button twice, the IQ which is twice the set extraction amount, for example, 0.59, is specified, and by pressing the button twice, the IQ is specified. The extraction amount of 5Q is specified and the display lamp 73A lights up, and when the button is pressed three times, the extraction amount of 2Q is specified and the display lamp 73B is lit, and in this way, when the button is pressed five times, the extraction amount of 3Q is turned on. is specified and the display lamp 73
D lights up, and by pressing the button six times, the amount of extraction for one party is specified, and the display lamp 73 lights up. In addition, this display lamp 73.
73A.

The display lamps 73B, 73C, and 73D corresponding to the specified extraction amount are configured to be lit continuously at the specified time, blink during extraction, and continuously lit after extraction. Further, on the operation panel 70, there is an alarm lamp 74 that detects when the raw water supply container 6 runs out of raw water 14 by the float switch 10 and displays an alarm, and a replacement time display as a notification means to notify when it is time to replace the extraction cartridge 5. A lamp 75 is provided. In this case float switch 1
If raw water 14 cut is detected by 0, pump 3
It is configured to stop 9.48.

FIG. 2 shows a block diagram showing the electrical configuration, and 16 is a control section consisting of a microcomputer, which is a CP
U77, timekeeping means 78. Memory 79. Input circuit 80. Output circuit 81. The control unit 76 includes arithmetic processing means 82, comparison means 83, etc., and this control unit 76 has a plurality of types of programs, and controls the drive of the pumps 39, 48, etc. according to the specified extraction amount according to the control programs it has. In addition to displaying 14 cuts of raw water and extracting cartridge 5
The input circuit 80 includes a start button 71 and a sensor 66 that detects that the set amount (0, 5Q) has been extracted. and extraction amount specifying means 72 and float switch 1
0 is connected. Further, a drive circuit 84 is connected to the output circuit 81, and this drive circuit 84 is connected to the raw water 14.
A pump 39i for the mineral extract liquid 21 and a pump 48 for the mineral extract liquid 21 are connected.

Further, the output circuit 81 includes display lamps 73.73A, 73B, and 73C that display the specified extraction amount.

73D, an alarm lamp 74 for displaying a warning that the raw water 14 is running out, a replacement time display lamp 15 for displaying the replacement time of the extraction cartridge 5, and a warning lamp 68 for indicating that preparation is not completed are connected. The memory 79 also stores a preset amount (0, 50) of the extraction amount detected by the sensor 66 and the extraction cartridge 5.
In order to determine when to replace the mineral water 18, a predetermined time T1 is stored, which is a preset time until a set amount of mineral water 18 is extracted.

Then, as shown in FIGS. 9 and 10, when a desired extraction amount, for example 3Q, is specified by pushing the specification operation button 72A of the extraction amount designation means 12, the control unit 76 displays a display corresponding to the specified extraction amount. When the start 5071 is turned on at the 0th time when the lamp 73D is turned on, the control unit 76 drives the pump 39 via the driver F484 and starts the time measurement operation by the time measurement means 78. By driving this pump, the raw water 14 in the raw water supply container 6 is pumped through the water suction pipe 42 and the water discharge pipe 44, and the activated carbon layer 28. Ion exchange resin R29, ceramic layer 3
0. The water passes through the mineral-containing stone layer 32 and the fiber layer 33 and is stored in the mineral water storage container 7 via the mineral water outlet pipe 45 as mineral water 1B. In this way, the mineral water storage container 7
When the set amount of mineral water 18 of 0.59 is stored in the tank, the float 62 floats and the sensor 66 outputs a detection signal to the control unit 76, and the control unit 76 calculates the measured time To until the set amount is extracted. It is stored in the memory 79. Further, the control unit 76 controls the pump 4 for a preset time T2.
8 to add the mineral extract liquid 21 in the mineral extract liquid supply container 35 to the raw water 14 through the mineral extract liquid outlet pipe 52. Further, the control section 76 is operated by the calculation processing means 82
Based on the extraction speed obtained from the set amount 0.5Q and the measured time T, the time T required to extract the specified extraction amount 3Q is T = 3 / 0.5 X To
Calculate with. Then, during the time T obtained by the calculation, the addition of the mineral extract liquid 21 at time T2 to the raw water 14 pumped at time To is repeated, and then the pump 39 is stopped to complete the extraction.

Furthermore, the control unit 76 measures the time T required for extracting the set amount.
o and a predetermined time T1 are compared by a comparing means 83,
When the measured time To reaches the predetermined time T1, the passing ability of the extraction cartridge 5 has decreased and it is time to replace it, and the replacement time indicator lamp 75 lights up or blinks.

Next, with reference to the flowchart of FIG. 11, ff11
The operation of the 1911 section 76 will be explained.

First, when a power switch (not shown) is turned on, as shown in step S1, it is determined whether the output of the sensor 66 is "0", that is, the light from the light emitting element 65 is blocked by the float 62, and the output of the sensor 66 is determined. If it is "1", it means that the mineral water storage container 7 has not been set or other preparations have not been completed, and the alarm lamp 68 lights up as shown in step S2, and the process proceeds to step S.
Return to 1. On the other hand, if the output of the sensor 66 is "0", it is assumed that the preparation has been completed, and as shown in step S3, it is determined whether or not the specified operation 172A is on. The display lamp 73D corresponding to the extraction amount specified in, for example, when the extraction amount of 3Q is specified, lights up.Next step S5
As shown in FIG. 3, it is determined whether or not the start button 71 is on. If it is turned on, a time count (parameter TX) is started in step S6, and the pump 39 is driven in step S7. As a result, the raw water 14 supplied from the raw water supply container 6 into the water tray 8 is sucked into the pump 39 through the water suction pipe 42 via the pipe connection part 41, and the raw water 14 discharged from the pump 39 is sent through the pipe connection part 16. The activated carbon layer 28. Ion exchange resin layer 29. It sequentially passes through the ceramic layer 30, is sent into the chamber 26°A from the communication port 34, passes through the mineral-containing stone layer 32 and the fiber layer 33, and is then sent to the activated carbon layer 28. Garbage and gases such as chlorine, methane, and captan, or lime and iron contained in the raw water 14 due to the fiber layer 33 and the like.

Manganese etc. are removed and purified, and ion exchange resin R2
9. Ceramic layer 30. The minerals contained in the mineral-containing stone layer 32 and the like are dissolved and extracted as mineral water 18, passed through the mineral water outlet pipe 45 through the pipe connection part 19, and discharged from the outlet 46 through the extraction hole 69A to the mineral water storage container. It is stored within 7.

In this way, as shown in step S8, the sensor 66
When the output of 1 is 1, that is, the set amount (0, 50) of mineral water 18 is stored in the mineral water storage container 7 and the float 62 floats, the light emitting element 65
It continues to be determined whether or not the light has been received by the light receiving element 65A. When the set amount of mineral water 18 of 0 and 5Q is stored in the mineral water storage container 7, the output of the sensor 66 becomes "1", and as shown in step S9, the time point when the output of the sensor 66 becomes "1". The measured time Tx is stored in the memory 79 as T(1).Next, in step 91G, it is determined whether To is equal to or longer than a preset predetermined time 11, and if To≧TI, the extraction cartridge is 5, the replacement time display lamp 75 is turned on in step S11, and the process then proceeds to step S+2. On the other hand, if To<T+, the process directly proceeds to step S12.

Further, as shown in step S12, the extraction amount specifying means 7
The time T required for extracting 3q, which is the extraction amount specified in Step 2, is calculated by 310.5XTe, and this calculation time T is stored in the memory 79.
Start the time count (parameter Ty) at 3,
And time counting (parameter Tz) is started in step S14. Furthermore, the pump 48 is driven in step S15. As a result, the mineral extract liquid 2 is supplied from the mineral extract liquid supply container 35 into the saucer 22.
1 is added to the raw water 14 in the water tray 8 through the mineral extract liquid outlet pipe 52 from the outlet 53, and in step S16
In step S17, a judgment is made as to whether or not the measured time TV has reached the preset addition time T2 of the mineral extract liquid 21. When the measured time TV reaches T2, the pump 48 is stopped in step S17, and the mineral extract liquid 21 is added. The addition of the liquid 21 is stopped.4 Next, as shown in step 318, it is determined whether or not the measured time Tz has reached 76, and the measured time Tz has reached 76.
If z does not reach T(+), it is determined in step S19 whether or not the measured time Tx has reached the time T until the specified extraction amount 3Q is stored, and Tx reaches T. If not, the routine moves to follow "NO" in step S19, returns to step S13, and repeats the process from step S13 to step S19 to obtain the mineral extract liquid 21 at time T2 for the water supply amount of raw water 14 for waiting time To. By repeating the addition, the highly pure mineral water 18 to which the mineral extract liquid 21 has been added continues to be extracted, and when the measured time Tx reaches T in this way, the pump 39 is stopped in step S20, and the specified extraction is continued. The amount of mineral water 18 is stored in the mineral water storage container 7, and the extraction is completed.

In this way, in the above embodiment, a sensor 66 is provided to detect that a preset amount of mineral water 18 has been extracted, and the sensor 66 is installed from the start of extraction.
The clocking means 78 measures the measured time To until it is detected by G that the extraction of the set amount has been completed, and the measured time T1 is set in advance according to the degree of deterioration at which the extraction cartridge 5 is to be replaced. The comparison means 83 compares the measured time To with the predetermined time T1.
When the extraction cartridge 5 is not reached, a replacement time display lamp 75 is turned on to notify the user that it is time to replace the extraction cartridge 5.

That is, as the raw water 14 passes through, the raw water 14 is deposited in the activated carbon layer 28 and fiber layer 33 of the extraction cartridge 5.
As the amount of passing raw water 14 increases as impurities such as rubber, gas, and lime contained in the water are adsorbed, the passing capacity (purification capacity) gradually decreases from the initial 100% as shown in Figure 12. It takes time to extract, and if this time becomes long (this means that the life of the extraction cartridge 5 has come to an end).For this reason, for example, if you want to replace it when the passage capacity reaches 50%, the extraction port of the set amount will be required. If the time is t when the passage capacity is 100%, the predetermined time T1 is set to 2t, and when the measured time TI reaches this time 2t, the replacement time indicator lamp 15 is turned on to indicate that it is time to replace, thereby preventing deterioration of the extraction cartridge 5. Not only can the appropriate replacement period be determined according to the degree of damage, but also this display can reliably notify the user of the replacement period and encourage replacement. The purification ability of the extraction cartridge 5 can be fully obtained through proper replacement.

In addition, the time to replace the extraction cartridge 5 varies depending on the water quality, so it is not a regular replacement.
Since the actual passing ability is detected in this way, the device can be used correctly by detecting a decrease in the original ability. Note that even if the replacement time comes, the pump 39 will not be unable to be used immediately, so even if the replacement time display lamp 75 lights up, the pump 39 will not be stopped and can be used as is.

Note that the present invention is not limited to the above-mentioned embodiments, and various modifications can be made within the scope of the gist of the present invention. It can also be applied to the production of drinking water such as water or coffee. Further, the predetermined time TI corresponding to the degree of deterioration of the extraction cartridge and the set extraction amount detected by the sensor can be selected as appropriate. Furthermore, the notification of replacement time is not limited to the display using the indicator lamp, and may be performed by an alarm such as a buzzer.

[Effects of the Invention] The present invention compares the measured time required for storing a preset amount of drinking water with a predetermined time set in advance according to the degree of deterioration of the purification section, and calculates the measured time. By activating the replacement time notification means when the predetermined time has not been reached, a decrease in the performance of the purification unit can be detected and the appropriate time for replacement can be clearly notified. ! We can provide manufacturing equipment.

[Brief explanation of the drawing]

1 to 12 show an embodiment of the present invention, FIG. 1 and FIG. 2 are block diagrams, FIG. 3 is a schematic explanatory diagram showing the configuration of the device, FIG. 4 is an overall perspective view, and FIG. 5 is an exploded perspective view, FIG. 6 is a cross-sectional view showing the senna portion, FIG. 7 is a longitudinal sectional view thereof, FIG. 8 is a longitudinal sectional view showing the extraction cartridge portion, and FIG. 9 is a longitudinal sectional view showing the extraction cartridge portion.
10 is a time chart diagram, FIG. 11 is a flow chart diagram, and FIG. 12 is a characteristic diagram of the extraction cartridge. 5... Extraction cartridge (purification section) 7... Mineral water storage container (drinking water storage container) 14... Raw water 18... Mineral water (drinking water) 39... Pump 66... Sensor 75 ... Replacement time indicator lamp (replacement time notification means) 7
8...Timekeeping means 83...Comparison means patent Applicant: Toshiba Thermal Appliances Co., Ltd. Agent Patent attorney: Godo Ushiki, Patent attorney
Thin 1) Long 4th part 1n (V passing amount Fig. 12

Claims (1)

[Claims] In a drinking water production device, which has a purification section replaceable with a raw water supply container, a pump, and a drinking water storage container, and in which the pump causes raw water from the raw water supply container to pass through the purification section and is stored in the drinking water storage container. , a sensor that detects that a preset amount of drinking water is stored in the drinking water storage container, and a time required for the preset amount of drinking water to be stored based on the detection output of this sensor. a comparison means that compares the measured time with a predetermined time set in advance based on the degree of deterioration of the purification section; and a purification device that is activated when the measured time reaches the predetermined time. 1. A drinking water manufacturing device, comprising: a means for notifying when a part is replaced.