JP6514022B2 - Water server and its high temperature water circulation program - Google Patents

Description

The present invention relates to, for example, a high temperature water circulation technology used for sterilization of a water server and the like.

  The water server includes a hot water tank and a cold water tank, and supplies hot water or cold water by converting the water supplied from a water supply bottle or the like into cold water by the cold water tank and hot water by the hot water tank. The cold water path including the hot water tank and the cold water tank is kept clean in the apparatus, but the sterilization process is performed by the circulation to the cold water path including the cold water tank of the high temperature water obtained in the hot water tank.

In this sterilization process, it is known that high temperature water obtained in a hot water tank is circulated to a cold water tank and sterilization is performed by filling the cold water tank with high temperature water (for example, Patent Document 1).

JP, 2013-233937, A

  By the way, in the sterilizing process of this water server, high-level water circulation is regularly performed to achieve high purification. In this high temperature water circulation water server, the supply of hot water and cold water is stopped, so it is necessary to select the time when the water supply is not necessary for the high temperature water circulation so as not to reduce the convenience of hot water and cold water provision. I will. However, the time when high temperature water circulation is possible varies depending on the user.

  If set time of high temperature water circulation = start time, high temperature water circulation will be started at the time of setting. Such setting and high temperature water circulation are convenient in that rapid sterilization can be performed. However, there is a problem that the user has to wait and set at the desired time to set the time of high temperature water circulation, for example, to avoid the demand time of water supply and to a time such as sleeping or going out .

  Due to such troublesomeness, there is a problem that some users continue to use it without setting the high temperature water circulation on a regular basis.

Therefore, in view of the above problems, an object of the present invention is to make it possible to set the start of high-temperature water circulation to a desired time at any time, and to enhance the convenience of the water server.

In order to achieve the above object, according to one aspect of the water server of the present invention, there is provided a water server that supplies high temperature water from a hot water tank and supplies cold water from a cold water tank, and is provided in a panel portion of the water server. A reference time or a switch for setting an interval time from the reference time to the start time of high temperature water circulation, a plurality of display lamps to which a number of hours are allocated, and the reference time or start time set by operation of the switch Storage means for storing, time measurement means for measuring the interval time, and high temperature water circulation means for circulating the high temperature water of the hot water tank to the cold water system including the cold water tank upon arrival of the start time of the high temperature water circulation; It should be provided.

In the water dispenser further said time measuring means, the measuring time from the start of the hot water circulation to the said start of the hot water circulation after a predetermined time period, the hot water circulating means, the said hot water circulation The hot water of the hot water tank may be circulated to the cold water system including the cold water tank when the start time from the start time to the start time after the predetermined period comes.

  In the water server, the reference time may be an installation time of the water server or a time set arbitrarily.

  In the water server, the display lamp may be a lamp used for another display function.

In order to achieve the above object, according to one aspect of a high temperature water circulation program of a water server of the present invention, a computer mounted on a water server that supplies high temperature water from a hot water tank and supplies cold water from a cold water tank is executed. In the high temperature water circulation control program, the display lamp to which the number of hours is assigned is blinked in response to the operation of the switch provided on the panel section of the water server, and the reference time point or the reference time point by the operation of the switch receiving a set of interval time of the commencement of the pressurized et hot water circulation, stores the reference time or the start time is set in the storage means, and measuring the interval time, the arrival of the start time of the hot water circulation By which the high temperature water of the hot water tank is circulated to the cold water system including the cold water tank The may be realized by the computer.

In the hot water circulation program, further wherein the measuring the time from the start of the hot water circulation to the said start of the hot water circulation after a predetermined time period, said start time after the predetermined period from the start time of the hot water circulation And the function of circulating the high temperature water of the hot water tank to the cold water system including the cold water tank.

  According to the present invention, any of the following effects can be obtained.

  (1) Without providing the clock function, the user can set the time of high temperature water circulation to a desired time, and moreover, the convenience of the water server can be enhanced without interfering with the supply of hot water or cold water.

  (2) Since the setting of the high temperature water circulation can be performed arbitrarily and easily, it is possible to prevent the inconvenience due to setting omission or setting avoidance, and the cold water tank and the cold water side path can be kept clean by the high temperature water circulation.

  (3) The existing switch and indicator lamp can be allocated to the setting means of high temperature water circulation, and the complication of the operation panel part of the water server can be avoided.

(4) The existing control system and switches and indicator lamps in the operation panel unit can be utilized, and the facility cost can be reduced, and a highly convenient water server can be realized.

It is a figure which shows an example of the water server which concerns on one Embodiment, and a time setting means. It is a flowchart which shows an example of the time setting of high temperature water circulation, and the processing procedure of high temperature water circulation. FIG. 2 is a view showing an example of a water server according to the first embodiment. It is a figure which shows an example of an operation panel part. It is a figure which shows the example of a table of the procedure in the time setting of high temperature water circulation, operation, and a display. It is a figure which shows an example of the water server control part in the Example of a water server. It is a flow chart which shows an example of a processing procedure of setting of high temperature water circulation. It is a flow chart which shows an example of a processing procedure of setting of high temperature water circulation. It is a flow chart which shows an example of a processing procedure of high temperature water circulation operation. It is a figure which shows the transient state and stable state of high temperature water circulation. It is a flowchart which shows an example of the process sequence of the high temperature water circulation instruction | command which concerns on Example 2. FIG. It is a flow chart which shows an example of processing procedure of energy saving repetition operation.

  FIG. 1A shows an embodiment of the water server of the present invention. The water server 2 is provided with a water supply unit 6 at the top of the water server body 4. The water supply unit 6 is provided with, for example, a water supply bottle for supplying clean water W.

  The water server body 4 is provided with a cold water tank 8, a hot water tank 10, a high temperature water circulating means 12, a time setting means 14 and a control means 16.

  The cold water tank 8 receives, for example, normal temperature water W from the water supply unit 6 and cools the water W so as to be able to be supplied with water. Cold water LW is supplied from the cold water tank 8.

  The hot water tank 10 receives the fresh water W from the water supply unit 6, heats the fresh water W, and stores it so that the hot water can be supplied. The high temperature water HW is supplied from the hot water tank 10.

  The high temperature water circulating means 12 circulates the high temperature water HW of the hot water tank 10 to the cold water system including the cold water tank 8 at the time of high temperature water circulation such as at the time of sterilization.

  The time setting means 14 is used as a reference time point for setting a start time point to start high temperature water circulation, or setting of a start time point after an interval time from the reference time point. This setting may include setting of the start time point of the high temperature water circulation after a lapse of time such as one week for a certain period of time from the start point of the high temperature water circulation. The reference time may be an installation time of the water server 2 or a time set arbitrarily. Moreover, interval time is time from a reference | standard time to the time of starting high temperature water circulation.

  The control means 16 comprises storage means 18 and time measuring means 20, and the arrival of the start time after the interval time by the arrival of the reference time set by the time setting means 14, or the start time after a predetermined time from the start time Control the high temperature water circulation means 12 and control the start of the high temperature water circulation at the reference time point and the start time point. This control also includes the termination process of the high temperature water circulation.

The storage unit 18 stores temporal reference points such as the reference time point set by the time setting means 14 and the start time point of the high-temperature water circulation. The stored information may include an interval time from the reference time to the start time of the high-temperature water circulation. The time measuring means 20 measures the interval time from the current time or reference time to the start time of the high temperature water circulation, and generates information indicating the arrival of the reference time or start time.

  B of FIG. 1 shows an example of the time setting means 14. The time setting means 14 may be provided on the panel unit of the water server 2, for example, on the front panel unit.

  In this example, the time setting means 14 includes, for example, a switch group 22 including a plurality of switches 22-1, 22-2, 22-3, 22-4, and, for example, a plurality of display lamps 24-1, 24-2. , 24-3, 24-4... 24-8 are included.

  The switch group 22 and the display lamp group 24 may use existing switches and display lamps included in the water server 2 or may newly set them. However, this embodiment and example are already installed. It uses switches and indicator lamps.

  The switch group 22 is assigned functions such as a setting mode of high-temperature water circulation, time setting of a reference time point and an interval time, setting cancellation, setting update, and the like according to one selected switch or a combination of two or more switches.

  In the display lamp group 24, the number of hours representing the reference time point or the interval time is allocated to the display lamp.

  A of FIG. 2 has shown an example of the processing procedure of time setting of high temperature water circulation. This processing procedure is executed by, for example, a computer mounted on the water server 2.

  The setting of the start time point after the reference time or the interval time from the reference time is performed by selecting, for example, the switch to which the setting function of the reference time or the interval time is assigned from the switch group 22 (S11). In conjunction with this selection operation, the display lamp group 24 turns on the corresponding display lamp (S12). If the interval time is selected from the lighted display lamp 24, the reference time point or the start time point after the interval time from the reference time point is set by the selection (S13).

  B of FIG. 2 has shown an example of the treatment procedure of high temperature water circulation. This processing procedure is executed by, for example, a computer mounted on the water server 2.

  The high temperature water circulation receives the setting of the set reference time or start time (S21), and measures the time until the reference time or start time (S22). When the reference time point or the start time point comes, high temperature water circulation is started, and the high temperature water HW of the hot water tank 10 is circulated to the cold water system including the cold water tank 8 (S23).

<Effect of one embodiment>

  According to the above embodiment, the following effects can be obtained.

  (1) If the water server 2 according to this embodiment is used, high-temperature water circulation can be performed at the arrival of a set reference time point or start time point without providing a clock function.

  (2) The time of high temperature water circulation can be set to the time desired by the user, and furthermore, the convenience of the water server can be enhanced without interfering with the supply of hot water or cold water.

  (3) The setting of the high temperature water circulation can be performed arbitrarily and easily, and the inconvenience due to the setting failure or the setting avoidance can be prevented.

  (4) The existing switch and indicator lamp can be allocated to the setting means of high temperature water circulation, and the complication of the operation panel of the water server can be avoided.

(5) The switches and indicator lamps on the existing control system and operation panel unit can be used to reduce the equipment cost and enhance the convenience of the water server.

<Configuration of water server 2>

  FIG. 3 shows an example of the water server 2. In the water server 2, the water supply unit 6 is provided with a water supply bottle 26. The water supply nozzle portion 28 of the water supply bottle 26 is inserted into the cold water tank 8 of the water server body 4. The water supply nozzle portion 28 can be opened and closed by the valve mechanism 30 on the cold water tank 8 side. The valve mechanism 30 is provided with a float portion 32 and an opening / closing portion 34. The float portion 32 moves up and down according to the cold water level in the cold water tank 8. Thereby, when the cold water level in the cold water tank 8 falls, the open / close unit 34 is opened, and the fresh water W is supplied to the cold water tank 8 from the water supply bottle 26. When the cold water level in the cold water tank 8 is full, the open / close unit 34 is closed, and the supply of the fresh water W from the water supply bottle 26 is blocked.

  The outer wall portion of the cold water tank 8 is provided with an evaporator 38 of a cooling device 36, and the tap water W supplied to the cold water tank 8 is cooled and cooled to cold water LW. The cooling device 36 comprises a cooling cycle including a cooler 39 and the like. The cold water tank 8 is equipped with a temperature sensor 40-1, and the detected temperature of the cold water LW is input to the cold / hot water control unit 42. Thereby, the cooling device 36 is controlled, and the cold water LW is controlled to a constant temperature of about 6 [° C.].

  The cold water LW is led from the cold water supply passage 44 on the bottom side of the cold water tank 8 to the cold water port 46. The cold water supply path 44 is provided with a cold water solenoid valve 48-1 controlled by the hot and cold water control unit 42, and the cold water solenoid valve 48-1 is opened to provide the cold water LW.

  Below the cold water tank 8, a hot water tank 10 is provided. Fresh water W is supplied to the hot water tank 10 from a water supply passage 52-1 extending from the central portion of the separation plate 50 in the cold water tank 8 to the hot water tank 10. The separation plate 50 separates the cold water LW and the fresh water W in the cold water tank 8.

  A heater 54 is provided on the outer wall portion of the hot water tank 10, and the clean water W supplied to the hot water tank 10 is heated and heated to the high temperature water HW. The warm water tank 10 is provided with a temperature sensor 40-2, and the detected temperature of the high temperature water HW is input to the cold and warm water control unit 42. Thus, the heater 54 is controlled to control the high-temperature water HW to a constant temperature of, for example, about 80.degree. C. to 90.degree.

  The high temperature water HW is guided from the hot water supply passage 56 on the ceiling side of the hot water tank 10 to the hot water port 58. The hot water supply passage 56 is provided with a hot water solenoid valve 48-2 controlled by the hot and cold water control unit 42, and the hot water solenoid valve 48-2 is opened to provide high temperature water HW.

  A bypass passage 52-2 is provided separately from the water supply passage 52-1 between the bottom of the cold water tank 8 and the ceiling of the hot water tank 10, and the bypass passage 52-2 is provided with a bypass valve 48-3. . Opening / closing of the bypass valve 48-3 is controlled by the cold / hot water control unit 42 during high temperature water circulation. In this example, the hot water tank 10, the water supply passage 52-1, the bypass passage 52-2 and the bypass valve 48-3 are included in the high temperature water circulation unit 12 as an example of the high temperature water circulation unit 12.

  In such a high temperature water circulation means 12, when the bypass valve 48-3 is opened, high temperature water HW flows from the hot water tank 10 to the cold water tank 8, and cold water LW from the cold water tank 8 flows to the hot water tank 10. The temperature of the cold water tank 8 is raised by the high temperature water circulation.

  The cold / hot water control unit 42 for realizing such a control function of high-temperature water circulation is an example of the control means 16 and, for example, is provided in the operation panel unit 60 as shown in FIG. 4.

<Operation panel unit 60>

  FIG. 4 shows an example of the operation panel unit 60 of the water server 2. The operation panel unit 60 may be installed on the front of the water server 2 and may be disposed, for example, above the cold water port 46 and the hot water port 58.

  A lock release switch 62-1, a hot water switch 62-2, a cold water switch 62-3, and an energy saving switch 62-4 are installed on the operation panel unit 60 as an example of the switch group 22 so as to be pressed. The unlocking switch 62-1 is used for unlocking. A child lock function is assigned to the lock release switch 62-1, and a child lock is set with respect to the hot water supply by a long press of, for example, 3 seconds as a fixed time. The hot water switch 62-2 is used for hot water supply. The hot water supply is switched to the normal high temperature water HW supply and the high temperature hot water hHW supply at a temperature higher than the high temperature water HW. The cold water switch 62-3 is used for cold water supply. For this cold water supply, it is switched to the supply of normal cold water LW and the supply of weak cold water hLW having a higher temperature than the cold water LW. The energy saving switch 62-4 is used to turn on and off the energy saving operation, and the energy saving setting is performed by, for example, a long press for 3 seconds as the constant time. In this case, power saving is performed by suppressing the heating temperature of the hot water HW in a time zone in which the energy saving operation is not used. In this example, the lock release switch 62-1 is disposed at the center, and the hot water switch 62-2 and the cold water switch 62-3 are disposed on the left and right sides of the lock release switch 62-1.

  The lock release switch 62-1 is provided with a lock release indicator lamp 64-1, and the lock release indicator lamp 64-1 blinks during the lock release, and its light emission color is, for example, green. Lights up during child lock and indicates that child lock is in progress. In the upper part of the lock release display lamp 64-1, as a guide display 66, it is displayed that "the child lock setting is made by continuously pressing for 3 seconds".

  A hot water display lamp 64-2 and a high temperature display lamp 64-3 are provided on the upper side of the hot water switch 62-2, and the hot water display lamp 64-2 lights up while the hot water is set, and its emission color is, for example, green or orange is there. The high temperature indicator lamp 64-3 lights up during the high temperature setting, and its emission color is, for example, green or orange. A cold water display lamp 64-4 and a weak cold display lamp 64-5 are provided on the upper side of the cold water switch 62-3, and the cold water display lamp 64-4 lights up during cold water setting, and its light emission color is green or orange . The weak cooling indicator lamp 64-5 lights up during the weak cooling setting, and the emission color is green or orange.

  On the energy saving switch 62-4 side, the setting indication lamp 64-6 and the energy saving in progress indicator 64-7 are provided. The repetition setting display lamp 64-6 lights up at the time of repetition setting, and the light emission color is green. The energy saving display lamp 64-7 lights up during the energy saving operation, and the emission color is green.

  A high temperature circulation display lamp 64-8 is installed on the right side of the cold water switch 62-3. The high temperature circulation display lamp 64-8 is turned on during the circulation of high temperature water circulation, and the emission color is green. While the high temperature circulation display lamp 64-8 is on, the use of hot water or cold water is prohibited.

  And in addition to the function for cold and hot water control, the function regarding high temperature water circulation is allocated. FIG. 5 shows lighting modes such as simultaneous pressing selected from the lock release switch 62-1, hot water switch 62-2 and cold water switch 62-3 for mode setting, turning off of the hot water display lamp 64-2 etc., continuous lighting or blinking, etc. Is shown.

  a) High temperature water circulation timer setting standby mode

  The hot water circulation timer setting standby mode is switched to the hot water circulation timer setting standby mode by simultaneously pressing the hot water switch 62-2 and the cold water switch 62-3 for a predetermined period of time, for example, 3 seconds regardless of whether the power is on or off. At this time, the high temperature water circulation is displayed by turning off the hot water display lamp 64-2 and the cold water display lamp 64-4, and turning on the high temperature circulation display lamp 64-8. When the standby mode is continued for a predetermined time, for example, one minute, the high temperature water circulation timer setting standby mode is ended, the current time is stored as a reference time, and high temperature water circulation is started.

  b) High temperature water circulation timer setting mode

  During the high temperature water circulation timer setting standby mode, the high temperature water circulation timer setting standby mode is switched to the high temperature water circulation timer setting mode by pressing the lock release switch 62-1 and the cold water switch 62-3 for a predetermined period of time, for example, simultaneously for 3 seconds. . At this time, blinking of the hot water display lamp 64-2 is displayed as the initial state of the high temperature water circulation timer setting mode, together with the lighting of the high temperature circulation display lamp 64-8.

  c) Setting of interval time

  The interval time is selected according to the number of times the lock release switch 62-1 is pressed for a short time.

  A display lamp such as the hot water display lamp 64-2 flashes green. However, it is after a fixed time, for example, 3 hours, of the initial reference time.

  The high-temperature indicator lamp 64-3 represents, for example, six hours after the high-temperature water circulation has elapsed from the reference time.

  The unlocking indicator lamp 64-1 represents, for example, after nine hours as the number of hours.

  The cold water display lamp 64-4 represents, for example, after 12 hours as the number of hours.

  The weak cooling indicator lamp 64-5 represents, for example, after 15 hours as the number of hours.

  The number of hours allocated to the hot water display lamp 64-2 returns, for example, after 3 hours.

  d) Normal operation mode

  The lamp display of the target time is determined by a short press of the energy saving switch 62-4. Thus, the blinking state of each of the display lamps 64-1 to 64-5 changes to continuous lighting, and the present time is set as the reference time point, and the selected interval time after is stored as the start time point. After the lapse of a second, each display lamp 64-1 to 64-8 becomes a normal display, and shifts to the normal operation.

<Cold and hot water control unit 42>

  FIG. 6 shows an example of the hot and cold water control unit 42. The cold and hot water control unit 42 is an example of the control means 16 and performs the above-described high temperature water circulation control in addition to the normal cold and hot water control.

  The cold and hot water control unit 42 uses a computer, and includes a processor 68, a memory unit 70, a 24 hour timer 72, a one week timer 74, and an input / output unit (I / O) 76.

  The processor 68 executes a program stored in the memory unit 70 to control cold and hot water, and controls the high temperature water circulation described above. This program includes a high temperature water circulation program.

  The memory unit 70 is an example of a storage unit, and stores a program executed by the processor 68 and data such as a reference time point and a start time point of high-temperature water circulation assigned to a switch. The memory unit 70 includes a read-only memory (ROM) and a random-access memory (RAM), and a recording medium such as a hard disk or a semiconductor memory may be used.

  The 24-hour timer 72 repeatedly measures 24 hours under the control of the processor 68 and is used for energy saving repetitive operation. A time output indicative of the arrival of 24 hours from this 24 hour timer 72 is provided to the processor 68.

  The one week timer 74 is an example of time measuring means. The one-week timer 74 repeatedly measures one week (= 168 hours) under the control of the processor 68, and is used to set and measure the start time of high temperature water circulation start and the next start time after a certain period from the start time. Be The one week timer 74 provides the processor 68 with a time output representing the arrival of one week.

  The I / O 76 is turned on / off from a functional unit such as the lock release switch 62-1, the hot water switch 62-2, the cold water switch 62-3, the energy saving switch 62-4, and the temperature sensors 40-1 and 40-2. Used for inputting information. Control information is output from this I / O 76 to functional units such as the cold water solenoid valve 48-1, the hot water solenoid valve 48-2, the bypass valve 48-3, the cooling device 36, and the lock release indication lamp 64-1.

<Setting of high temperature water circulation>

  FIG. 7 shows the procedure for setting the high temperature water circulation. This treatment procedure is an example of the treatment realized by the high temperature water circulation program.

  This processing procedure is shifted from the normal operation mode (S101) described above to the high temperature water circulation timer setting standby mode (S102), and is shifted from the standby mode to the high temperature water circulation timer setting mode (S103). In the high temperature water circulation timer setting mode (S103), the interval time is set (S104), and when the setting is completed (S105), the start timing of the high temperature water circulation is stored, and the operation returns to the normal operation mode (S101).

  FIG. 8 shows a specific processing procedure of setting of high temperature water circulation. This treatment procedure is an example of the treatment realized by the high temperature water circulation program.

  This treatment procedure includes the treatment of high temperature water circulation from the setting. The instruction of the high temperature water circulation requires simultaneous operation of the hot water switch 62-2 and the cold water switch 62-3. Therefore, it is determined whether the high temperature water circulation has simultaneously pressed, for example, 3 seconds or more as the predetermined time of the hot water switch 62-2 and the cold water switch 62-3 (S201). If there is no simultaneous pressing (NO in S201), the high temperature water circulation process is not performed.

  As a predetermined time of hot water switch 62-2 and cold water switch 62-3, for example, if there is simultaneous pressing of 3 [seconds] or more (YES in S201), as predetermined time of lock release switch 62-1 and cold water switch 62-3 For example, it is determined whether there has been simultaneous pressing of 3 seconds or more (S202). There is no simultaneous pressing (NO in S202), and it is determined whether, for example, 1 [minute] has elapsed as the predetermined time (S203). There is no simultaneous pressing of 3 [seconds] or more of the lock release switch 62-1 and the cold water switch 62-3, and if 1 [minute] elapses (YES in S203), the high temperature water circulation implementation timing in the timer 74 at the present time The memory unit 70 stores T1 as a reference time point (S204), executes the high-temperature water circulation operation (S205), and ends this process.

  In S202, if there is simultaneous pressing of the lock release switch 62-1 and the cold water switch 62-3 simultaneously for 3 seconds or more (YES in S202), an initial value is set to the interval time Tint, and the energy saving switch 62-4 is pressed briefly. It is determined whether there is any (S206).

  If there is a short press of the energy saving switch 62-4 (YES in S206), the memory unit 70 starts with a time Tm (= T01 + Tint) obtained by adding the interval time Tint to the current time T01 as the high temperature water circulation execution timing in the one week timer 74. (S207), and skip S205 to end this process.

  In S206, if there is no short press of the energy saving switch 62-4 (NO in S206), it is determined whether there is a short press of the lock release switch 62-1 (S208), and if there is a short press (YES in S208), The interval time Tint until the high temperature water circulation implementation is switched (S209), and the process returns to S206. In S208, if there is no short press of the lock release switch 62-1 (NO in S208), the process returns to S206.

<High temperature water circulation operation>

  FIG. 9 shows the processing procedure of the high temperature water circulation operation of S205 (FIG. 8). This processing procedure is also executed when the reference time point or the start time point of the high temperature water circulation implementation timing set in the one week timer 74 comes.

  In this processing procedure, the cooling device 36 is turned off (S301), and heating in the hot water tank 10 is started (S302). The bypass valve 48-3 is opened, and the high temperature water in the hot water tank 10 and the cold water tank 8 is circulated while maintaining and heating the temperature in the hot water tank 10 to a predetermined high temperature (S303).

  During this high-temperature water circulation, it is determined whether the temperature in the cold water tank 8 is, for example, 85 ° C. or more as the predetermined temperature and, for example, 30 minutes or more as the predetermined time (S304). If the temperature in the cold water tank 8 is less than 85 ° C., or more than 85 ° C. and 30 minutes or more have not elapsed (NO in S304), S303 and S304 are repeated, and high temperature water circulation is continued.

  Then, when the temperature in the cold water tank 8 exceeds 85 ° C. and 30 minutes or more (YES in S304), the bypass valve 48-3 is closed to shift to a normal state (S305), and the process is ended. Do.

  A of FIG. 10 shows the start time of high temperature water circulation. When the bypass valve 48-3 is controlled to be in the open state, the hot water tank 10 and the cold water tank 8 are brought into the water passing state through the water supply passage 52-1 and the bypass passage 52-2. Thus, the high temperature water HW rises from the hot water tank 10 through the bypass passage 52-2 and flows into the cold water tank 8. The cold water LW flows into the hot water tank 10 from the separation plate 50 side of the cold water tank 8 through the water supply passage 52-1. The high temperature water HW circulates between the hot water tank 10 and the cold water tank 8 by this continuous repetition.

B of FIG. 10 has shown the stable time of high temperature water circulation. When the high temperature water circulation is continued, as shown in B of FIG. 10, the cold water LW of the cold water tank 8 can be heated to fill the cold water tank 8 with the high temperature water HW. Thus, the inside of the cold water tank 8 is sterilized.

<High temperature water circulation operation>

  FIG. 11 shows a processing procedure of the high temperature water circulation operation in the second embodiment. In this processing procedure, the same parts as those in the flowchart of FIG. 8 of the first embodiment are given the same reference numerals.

  The high temperature water circulation of the second embodiment includes the process of the energy saving repetitive operation. Also in the second embodiment, it is determined whether or not there has been simultaneous pressing of, for example, 3 seconds or more as the predetermined time of the hot water switch 62-2 and the cold water switch 62-3 in the high temperature water circulation (S201). If this simultaneous pressing is not performed (NO in S201), the point that the treatment of the high temperature water circulation is not performed is the same as the first embodiment.

For example, if simultaneous pressing of 3 [seconds] or more is given as the predetermined time of the hot water switch 62-2 and the cold water switch 62-3 (YES in S201), it is determined whether energy saving repetition is set (S401). If energy saving repetition is set (YES in S401), the high temperature water circulation execution timing in the one week timer 74 is stored in the memory unit 70 (S402). In this case, the high temperature water circulation implementation timing may be matched with the energy saving implementation time at the present time.

  After S402, the process proceeds to a high temperature water circulation operation (S205), and the process ends.

  Moreover, if there is no energy saving repetition setting by S401 (NO of S401), it will transfer to S202, and since the process of S202-S209 is the same as that of Example 1, it omits these description.

<Energy saving repeat operation>

  FIG. 12 shows the processing procedure of the energy saving repetitive operation. In this processing procedure, it is determined whether or not the energy saving switch 62-4 has been pressed for 3 seconds, for example, as the predetermined time (S501). If there is no simultaneous pressing (NO in S501), the energy saving repeating operation does not start.

  If the energy saving switch 62-4 is pressed for 3 seconds (YES in S501), the energy saving implementation timing in the 24-hour timer 72 is stored in the memory unit 70 (S502), and generated for example seven times in the one week timer 74 Among the energy saving implementation timings, the timing at which the time interval becomes the largest since the previous high temperature water circulation is stored in the memory unit 70 as the high temperature water circulation timing (reference time point) (S503). However, the previous execution timing may be taken into consideration for this high-temperature water circulation timing.

  Then, for example, the energy saving repeating operation for six hours is performed as the predetermined time (S504), and the process is ended.

<Effect of the embodiment>

  According to the above embodiment, the following effects can be obtained.

  (1) The high temperature water circulation of the water server 2 can be performed regularly, and the cold water tank 8 and the cold water system can be maintained clean. In order to prevent bacterial growth in the cold water tank 8, for example, high temperature water circulation for preventing regular bactericidal growth about once a week is necessary. High temperature water HW can be circulated to the cold water tank 8. In the above embodiment, the high temperature water circulation is performed every seven days on the basis of seven days of one week set by the one week timer 74, and the circulation time of the high temperature water is, for example, four hours. And during execution of the function of energy saving repetition setting, high temperature water circulation is performed during energy saving operation every seven days.

  (2) The water server 2 can realize regular high temperature water circulation with a timer function, and does not require the timer function only with the timer function. Since the clock function is not provided, the cost can be reduced with this water server 2, and if the clock function is provided, it is not necessary to perform time calibration necessary to prevent periodic high temperature water circulation from being interrupted. is there.

  (3) The setting of the high temperature water circulation can be optionally performed by the user when the water server 2 is not used. The conventional water server has the disadvantage of not setting the high temperature water circulation because it requires an operation for high temperature water circulation when it is not used, but this water server 2 assumes a non-use timing, Setting of high temperature water circulation can be done in advance. That is, specifically, the start of the high-temperature water circulation can be set to be possible after the predetermined time of the setting operation. For this reason, it is possible to prevent the disadvantage of avoiding the setting of the high temperature water circulation and continuing to use the water server.

  (4) Since such pre-setting of the high temperature water circulation is made possible, for example, when installing and installing the water server 2, it is possible for the installer and the distributor to simultaneously set the high temperature water circulation. From this point as well, it is possible to prevent the high temperature water circulation setting from being forgotten or forgotten.

  (5) In the water server 2, the setting function of high temperature water circulation is assigned to the existing switch and display lamp installed in the operation panel unit 60, and the operation function and the display function are not physically increased. That is, high temperature water circulation can be performed only by the operation of the existing switch or display lamp. Since the water server 2 is installed in a home etc. and targets a wide range of users from young people to elderly people, increasing the number of switches and the number of displays impairs the convenience of the user. In addition, although a dedicated switch or indicator lamp for high temperature water circulation may be provided, it will be necessary to prevent careless operation or erroneous operation. However, in this water server 2, the setting function of high-temperature water circulation is allocated to the existing switch and display lamp, and setting of high-temperature water circulation is different from normal unlocking operation, hot water supply and cold water supply operation. Since simultaneous pressing of the switch is required to continue pressing for a certain period of time, it is possible to prevent erroneous operation of the setting of the high-temperature water circulation.

  (6) In the water server 2, when the normal setting other than the high temperature water circulation setting is performed, the normal setting may be prioritized.

Other Embodiments

  a) In the above-described embodiment and examples, high temperature water is circulated in the cold water tank 8, but high temperature water may be circulated in the cold water system including the cold water tank 8.

  b) In the above embodiment, an LED (Light Emitting Diode) is used as an example of the display lamp, but such an optical display is provided with a sound generation means and set according to the tone color and the number of occurrences of the buzzer sound. The time may be selectable.

As mentioned above, the most preferable embodiment etc. of the technique of this invention were described. The present invention is not limited to the above description. Various modifications and changes can be made by those skilled in the art based on the subject matter of the invention described in the claims or disclosed in the mode for carrying out the invention. It goes without saying that such variations and modifications are included in the scope of the present invention.

The present invention can further improve the convenience of the water server by realizing regular high temperature water circulation for sterilization of the water server without the clock function.

2 water server 4 water server main body 6 water supply unit 8 cold water tank 10 hot water tank 12 high temperature water circulating means 14 time setting means 16 control means 18 storage means 20 time measuring means 22 switch group 22-1, 22-1, 22-2 and 22 -3, 22-4 switch 24 indicator lamps 24-1, 24-2, 24-3, 24-4 ... 24-8 indicator lamps 26 water supply bottle 28 water supply nozzle 30 valve mechanism 32 float 34 open and close Part 36 Cooling device 38 Evaporator 39 Cooler 40-1 Temperature sensor 40-2 Temperature sensor 42 Cold water supply control part 44 Cold water supply passage 46 Cold water port 48-1 Cold water solenoid valve 48-2 Hot water solenoid valve 48-3 Bypass valve 50 Separation plate 52-1 Water supply passage 52-2 Bypass passage 54 Heater 56 Hot water supply passage 58 Hot water port 60 Operation panel 62-1 Lock Remove switch 62-2 hot water switch 62-3 cold water switch 62-4 energy saving switch 64-1 lock release indicator lamp 64-2 hot water indicator lamp 64-3 high temperature indicator lamp 64-4 cold water indicator lamp 64-5 weak cooling indicator lamp 64 -6 Repeat setting display lamp 64-7 Energy saving display lamp 64-8 High temperature circulation display lamp 66 Guide display 68 Processor 70 Memory section 72 24 hour timer 74 One week timer 76 I / O

Claims (6)

A water server that supplies high temperature water from a hot water tank and supplies cold water from a cold water tank,
A switch provided on a panel portion of the water server and setting an interval time from a reference time point or the reference time point to a start time point of high temperature water circulation;
With several indicator lamps which assigned the number of hours,
Storage means for storing the reference time point or the start time point set by the operation of the switch;
Time measuring means for measuring the interval time;
High temperature water circulating means for circulating the high temperature water of the hot water tank to the cold water system including the cold water tank upon arrival of the start time of the high temperature water circulation;
Water server characterized by having. Further, the time measuring means, the measuring time from the start of the hot water circulation to the said start of the hot water circulation after a predetermined time period, the hot water circulating means, the predetermined from the start time of the hot water circulation The water server according to claim 1, wherein the high temperature water of the hot water tank is circulated to a cold water system including the cold water tank upon arrival of the start time after the period.   The water server according to claim 1 or 2, wherein the reference time is an installation time of the water server or a time arbitrarily set. The water server according to claim 1 , wherein the display lamp is a lamp used for another display function. A high temperature water circulation control program to be executed by a computer mounted on a water server which supplies high temperature water from a hot water tank and supplies cold water from a cold water tank,
In response to the operation of a switch provided on the panel section of the water server, the indicator lamp to which the number of hours is assigned is blinked,
By the operation of the switch, the reference point or receiving a set of interval time of the commencement of or al high hot water circulation to the reference point,
Storing the set reference time or start time in storage means;
Measure the interval time,
With the advent of the start time of the hot water circulation, hot water circulation program for a function of circulating the hot water in the hot water tank to the cold water system is realized by the computer including the cold water tank. Furthermore, the measured time from the start of the hot water circulation to the said start of the hot water circulation after a predetermined time period, with the advent of the start time after the predetermined period from the start time of the hot water circulation, the cold water The high temperature water circulation program according to claim 5 , further comprising a function of circulating the high temperature water of the hot water tank to a cold water system including a tank.

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