CN108883924B

CN108883924B - Drinking machine

Info

Publication number: CN108883924B
Application number: CN201780019434.8A
Authority: CN
Inventors: 小野喜之; 桂谷祥太; 吉田正直; 吉原庆太; 原田尚志
Original assignee: Suntory Holdings Ltd; Purpose Co Ltd
Current assignee: Suntory Holdings Ltd; Purpose Co Ltd
Priority date: 2016-05-30
Filing date: 2017-05-17
Publication date: 2020-07-28
Anticipated expiration: 2037-05-17
Also published as: WO2017208817A1; CN108883924A; HK1257562A1; TWI738781B; TW201802412A; JP6797910B2; KR102221371B1; KR20180124989A; JPWO2017208817A1

Abstract

In the water dispenser (70), a water tank (cold water tank 8) storing water (cold water L W) is provided with a water filling cylinder (4), the water filling cylinder (4) is provided with a water filling path (12), and the water filling path (12) is provided with a space (18) having a larger flow path diameter than a needle (4-1) of the water filling cylinder (4) inserted into the water tank (10).

Description

Drinking machine

Technical Field

The present invention relates to a technique for filling water into a water tank of a water dispenser or the like that supplies cold water, warm water, carbonated water, or the like.

Background

The water dispenser is provided with a water tank for storing cold water. The water tank is provided with a water filling tube portion which is provided with a needle, the needle is inserted into the water container, and water in the water container is filled into the water tank by the water filling tube portion.

In this water dispenser, it is known to employ a water filling cylinder portion provided with a needle inserted into a water container (for example, patent document 1).

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2011-102146

Disclosure of Invention

Problems to be solved by the invention

However, in the water dispenser that maintains the water tank in a sealed state together with the water container, water in the water container is filled into the water tank as the water is consumed.

In contrast to such filling at the time of normal use, in the case of initial filling from a new water tank at the time of setting the water dispenser, water in the water tank is filled into the water tank along with Air (Air) in the tank side. That is, the sealed state of the tank side is released by the exhaust of the tank side, and the water is filled into the tank from the water container. When the water container is detached from the water tank, the inside of the water tank is exposed to the outside air. Even if the outside air enters the water tank, the inside of the water tank is sterilized by the circulation of the high-temperature water, and therefore, there is no problem in water supply.

When water is filled, bubbles generated in the tank side move not only to the exhaust port side but also to the water filling portion side. The contraction force of the water tank contracted by the filling of water acts as a blocking force for preventing air from entering the water tank.

However, since the initial filling from the new water tank is the filling to the tank before the high-temperature water is circulated, there is a problem that: air intrusion such as air bubbles from the tank to the water tank side and water filling from the water tank and replacement of air in the tank side should be avoided as much as possible.

In the water dispenser, the above-described high-temperature water circulation is periodically performed in the water tank. This high-temperature water circulation is performed in a state where the water tank is connected to the water tank, and when convection occurs in the remaining water at the connection portion between the water tank and the water tank, there is a problem that the heat affects the water tank side.

In view of the above problems, an object of the present invention is to prevent air from entering the water tank side when filling water from the water tank into the tank.

In view of the above problem, another object of the present invention is to avoid thermal influence on the water tank side when high-temperature water is circulated.

Means for solving the problems

In order to achieve the above object, according to one aspect of the water dispenser of the present invention, a water tank storing water includes a water filling cylinder portion having a space portion with a larger flow path diameter than a needle portion inserted into a water container.

In order to achieve the above object, one aspect of the water dispenser according to the present invention includes: a water tank for storing water; and a water filling cylinder part which is inserted with a needle part in the water container and is used for filling water from the water container to the water tank, wherein the water filling cylinder part is provided with a retention part which restrains air from invading into the water container and enables the water to pass through, and enables the water to be retained in the water filling cylinder part when the water tank is filled with water.

In the water dispenser, the following can be also adopted: the water filling tube section includes a water tank inner tube section disposed inside the water tank, and the water tank inner tube section includes a water filling port having a diameter smaller than a diameter of the space section.

In the water dispenser, the following can be also adopted: the water filling port is submerged in the water at the reference water level of the water tank.

In the water dispenser, the following can be also adopted: the water injection cylinder part is arranged on the cover part of the water tank.

In the water dispenser, the following can be also adopted: further provided with: a water level sensor that detects a water level of the water tank; and an air discharging mechanism for discharging air from the water tank, wherein the air discharging mechanism is used for discharging air from the water tank according to the water level detection of the water level sensor, and the water in the water container is injected into the water tank through the water injection cylinder.

In the water dispenser, the following can be also adopted: a water filling mechanism including the water filling cylinder is provided in an upper portion of the tank, and the retention section is disposed in the tank so as to penetrate from the inside to the outside of the tank.

In the water dispenser, the following can be also adopted: the water injection tube section includes: a main body part formed with the needle part inserted into the water container; a water injection passage that communicates the needle portion with the space portion; an inclined wall portion that expands from the water injection passage to the space portion; and an opening end portion in which a water filling path is formed to be narrower than the space portion and the space portion is communicated with the water tank.

In the water dispenser, the following can be also adopted: the space portion is a cylindrical cavity portion.

In the water dispenser, the following can be also adopted: and, the water injection cylinder part is formed by stainless steel or other metals.

Effects of the invention

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

(1) since the water filling cylinder portion includes the space portion having a larger flow path diameter than the needle portion inserted into the water container, air can be prevented from entering the water container from the water tank side, and replacement of water in the water container side and air in the water tank side can be avoided.

(2) Since water is retained in the space of the water filling tube, thermal influence on the water tank side due to high-temperature water during circulation of high-temperature water can be avoided.

(3) Since the space portion having a larger flow passage diameter than the needle portion is provided in the water injection passage through which only water passes in the water injection cylinder portion formed of a metal material such as stainless steel, the fluid resistance against the passing water can be reduced, and the water injection cylinder portion itself can be reduced in weight.

Drawings

Fig. 1 a is a view showing a water filling mechanism part by cutting a part of a cold water tank according to an embodiment, and B is a view showing a water filling cylinder part.

Fig. 2 a is a diagram showing a closed state of the exhaust valve, and B is a diagram showing an open state of the exhaust valve.

Fig. 3 is a diagram showing a water filling drum of the cold water tank of embodiment 1.

Fig. 4 is a view for explaining the attachment of the water container to the water filling cylinder.

Fig. 5 is a diagram showing a water dispenser of embodiment 2.

Fig. 6 is a diagram showing a control portion of the water dispenser.

Fig. 7 is a flowchart showing the control of the water dispenser.

Fig. 8 is a flowchart showing the circulation control of high-temperature water.

Detailed Description

Fig. 1 a shows a water filling mechanism of a cold water tank according to an embodiment. The structure shown in a of fig. 1 is an example, and the present invention is not limited to the structure.

The water injection mechanism 2 includes a water injection cylinder 4 and an exhaust mechanism 6. The water injection tube section 4 is a water injection unit as follows: is provided in the cold water tank 8, functions as a coupling means for coupling the water tank 10 (fig. 2) to the cold water tank 8, which is an example of a tank storing water, and water W is poured from the water tank 10 into the cold water tank 8. The water injection tube portion 4 is integrally provided with a needle portion 4-1 and a body portion 4-2.

The needle portion 4-1 has a water injection passage 12 formed at the center thereof, and includes an acute-angled sharp portion 14, a U-shaped notch portion 15, and a circular through hole 16 at the distal end thereof in a form of cutting a cylindrical body having the same diameter into an acute angle. That is, when the needle portion 4-1 is inserted into the water container 10, the water filling path 12, the notch 15, and the through hole 16 serve as an inlet of the water W from the water container 10 to the water filling cylinder portion 4. The water injection passage 12 is a passage through which water W flows into the cold water tank 8.

The main body 4-2 is provided with a water injection passage 12 so as to be continuous with the needle 4-1, a space 18 is formed in the middle of the water injection passage 12, and a rear port 20, which is an example of a water injection port, is provided on the rear side of the space 18. The space 18 forms a cavity having a larger flow path diameter than the water injection path 12 on the side of the water injection path 12 and the rear port 20. The space 18 is, as an example, a cylindrical space having the same diameter, and includes a tapered wall 21 expanding toward the space 18 at an inlet on the needle portion 4-1 side, and an orthogonal wall 23 orthogonal to the water injection passage 12 at a rear side opening 20 side. The rear port 20 and a part of the water filling tube 4 in the cold water tank 8 are examples of the tank inner tube. Thus, main body 4-2 is attached to cold water tank 8, and space 18 is disposed to penetrate from the inside to the outside of the tank.

An insertion portion 22 for the water container 10 is formed in the body portion 4-2 at a step from the needle portion 4-1, and an O-ring 24 is attached to the insertion portion 22 via a recess 25. The insertion portion 22 includes a step portion 26 functioning as a stopper, together with a step with respect to the needle portion 4-1.

The exhaust mechanism 6 is attached to an exhaust port 29 on the cold water tank 8 side, and includes an exhaust valve 30 and an exhaust pipe 32. The exhaust valve 30 closes the exhaust port 29 and is switched to an open state during water injection.

As shown in fig. 1B, if the diameter of the water injection pipe section 4 is Φ 1, the diameter of the space section 18 is Φ 2, and the diameter of the rear side port section 20 is Φ 3, Φ 1< Φ 2, Φ 2> Φ 3, Φ 1 is ═ Φ 3, or Φ 1> Φ 3.

When the height (length) of the needle 4-1 is h1, the height (length) of the water injection passage 12 from the needle 4-1 to the space 18 of the body 4-2 is h2, the height (length) of the space 18 is h3, and the height (length) of the rear port 20 is h4, h1< h2, h1< h3, h2 ≈ h3, and h3> h4 may be used.

< function of Water injection tubular portion 4 >

A in fig. 2 shows a state before water injection. The exhaust mechanism 6 of the cold water tank 8 is provided with an exhaust valve 30 for opening and closing an exhaust port 29. The exhaust valve 30 is provided with a ventilation portion 34, and a valve body 36 is disposed on a valve seat surface of the ventilation portion 34 so as to be openable and closable. The exhaust pipe 32 described above is connected to the vent portion 34. Before the water is filled, the vent portion 34 is closed by the valve body 36.

Even if the used water container 10 is replaced with a new water container 10 and the needle 4-1 of the water filling cylinder 4 is inserted into the water container 10, the cold water tank 8 and the water container 10 are in a sealed state when the air release valve 30 is in a closed state. In this case, the water tank 8 can be prevented from being filled with water even if a part of the water W in the water tank 10 enters the filling cylinder 4 by gravity. That is, the space 18 of the water filling tube 4 is empty, and replacement of water in the water tank 10 and air in the cold water tank 8 can be avoided.

B in fig. 2 shows a water-filled state. When the exhaust valve 30 is switched from the state of a in fig. 2 to the open state, the cold water tank 8 can be exhausted, and the water W in the water tank 10 is poured into the cold water tank 8 at once.

By the injection of the water W, the air in the space 18 is pushed out from the rear port 20 side into the cold water tank 8 and flows out of the cold water tank 8 from the air discharge mechanism 6. At this time, space 18 of water injection tube 4 is filled with water W. That is, the space portion 18 constitutes a retention portion for water injection, and functions as follows. Specifically, as described above, since the space portion 18 having a larger flow path diameter than the needle portion 4-1 in which the water filling cylinder portion 4 is inserted into the water container 10 is provided, the following functions are exhibited: the intrusion of air from the cold water tank 8 side to the water tank 10 can be suppressed, and the replacement of water in the water tank 10 side and air in the cold water tank 8 side can be avoided at the time of filling. Since water is retained in space portion 18, the following functions are exhibited: the thermal influence on the water container 10 side due to the high-temperature water during the circulation of the high-temperature water is avoided. Further, space 18 has an additional function of: the fluid resistance to the passing water is reduced, and the water injection cylinder part 4 is reduced in weight.

Even if air bubbles are generated in the cold water tank 8 during this water filling process, the air bubbles join with the air on the water surface on the cold water tank 8 side and are discharged from the air discharge mechanism 6, and the air can be prevented from entering the space 18 filled with water.

The cold water tank 8 is provided with a water level sensor 38, and the exhaust valve 30 is closed after a predetermined time, for example, several seconds of standby time has elapsed from the detection water level L1 of the water level sensor 38, that is, the water level at the time when the exhaust valve 30 is closed is L2 from the time when the water level sensor 38 is in contact with the water W until the standby time, the water level at the time when the exhaust valve 30 is closed is L at the water level L2, the water W in the water reservoir 10 and the water W or cold water L W on the cold water tank 8 side are connected via the water filling path 12 of the water filling drum 4, and the water level L1 or the water level L2 is used as the reference water level of the cold water tank 8.

When the rear opening 20 side of the water filling tube portion 4 is shifted to a submerged state, even if air bubbles are generated in the cold water tank 8, the space portion 18 is filled with water W, and the air bubbles can be prevented from entering the water tank 10 side. The air bubbles flow to the water surface on the cold water tank 8 side, join with the air on the water surface, and are discharged from the exhaust mechanism 6.

< effects of one embodiment >

(1) When the water tank 10 is replaced, the space 18 of the water filling cylinder 4 is empty by the water from the water tank 10, so that the replacement of the air from the cold water tank 8 with the water filled from the water tank 10 can be suppressed, and the intrusion of the air into the water tank 10 can be avoided.

(2) Even in the case of water filling by water level control of the cold water tank 8 in a normal state, replacement of air in the cold water tank 8 and water filling from the water tank 10 can be suppressed, and intrusion of air into the water tank 10 can be avoided.

(3) Since water is retained in the space 18 of the water filling tube portion 4, convection of water on the rear side port 20 side which is submerged in water is stopped during circulation of high-temperature water, and convection of the residual water on the space 18 side can be suppressed, so that thermal influence on the water tank 10 side can be avoided.

(4) According to this water injection tubular portion 4, the fluid resistance of the water W passing through the space portion 18 can be reduced as compared with a water injection tubular portion constituted only by water injection passages having the same diameter, and the water injection tubular portion 4 can be made lightweight and rigid.

(5) Tapered wall 21 is provided on the inlet side of space 18 to form a flow path extending from water supply path 12 to space 18 in the falling direction of water W, so that the fluid resistance against the falling of water W can be reduced and the water can be quickly supplied to cold water tank 8.

Example 1

Fig. 3 shows an example of the water injection cylinder part 4 of embodiment 1. In fig. 3, the same portions as those in fig. 1 are denoted by the same reference numerals.

The water injection cylinder part 4 can be as follows: the rear mouth portion 20 and the main body portion 4-2 are separate members and are detachable from the main body portion 4-2. For example, if the screw portion 42 is provided in the opening 40 of the space 18 of the body portion 4-2 and the screw portion 46 is also formed in the small diameter portion 44 of the rear port portion 20, the small diameter portion 44 of the rear port portion 20 can be inserted into the rear end side opening of the body portion 4-2, and the

screw portions

42 and 46 can be combined with each other, whereby the rear port portion 20 can be attached to the body portion 4-2. In this case, the rear side of space 18 is closed by attaching rear port 20, and space 18 communicates with water injection passage 12 on the rear port 2 side. The body 4-2 may be passed through the mounting portion 48 of the cold water tank 8 and fixed to the cold water tank 8 by welding or the like.

Fig. 4 shows an example of the cartridge 4 and the water container 10. The cold water tank 8 is provided with a tank portion 50 and a lid portion 52 as an example. An O-ring 56 is attached to a circumferential curved portion 54 formed in the lid portion 52, and the opening edge portion of the container portion 50 is brought into close contact with the lid portion 52 with the O-ring 56 interposed therebetween. The exhaust pipe 58 of the exhaust mechanism 6 is attached to the lid 52 together with the water injection pipe 4 described above. The exhaust cylinder 58 is provided with the exhaust valve 30 described above.

The water container 10 is made of synthetic resin or the like, and is accommodated as a rigid material in a cube-shaped shape retaining container 60 made of corrugated paper or the like, for example. An insertion portion 64 for the water filling tube portion 4 is formed in the opening portion 62 of the shape retaining container 60. The insertion portion 64 is formed with a pierceable portion 68 surrounded by the guide portion 66. The pierceable portion 68 is formed to be pierceable by the flexibility of a material such as a synthetic resin. The guide portion 66 guides the water filling cylinder 4 to pierce the needle 4-1 into the pierceable portion 68, and when the insertion portion 22 is inserted, the water container 10 and the cold water tank 8 can be easily combined and can be maintained in a sealed state.

< effects of example 1>

According to this embodiment 1, the following effects can be obtained:

(1) in example 1, the same effects as those described in one embodiment can be obtained.

(2) In example 1, the main body portion 4-2 and the rear side port portion 20 are configured as separate members, and the main body portion 4-2 and the rear side port portion 20 are detachable, so that the manufacturing process of the water injection tubular portion 4 can be facilitated, and the water injection passage 12 and the space portion 18 in the water injection tubular portion 4 can be easily cleaned.

(3) In the main body portion 4-2 including the space portion 18, the weight reduction and the hardening can be achieved as compared with the case where the space portion 18 is not provided, and thus the weight reduction and the hardening of the water injection cylinder portion 4 can be achieved.

Example 2

Fig. 5 shows an example of the water dispenser of embodiment 2. In fig. 5, the same components as those in fig. 1 to 3 are denoted by the same reference numerals.

In the water dispenser 70, a water tank 10 is provided at an upper portion of a housing 72, the water tank 10 is, for example, a synthetic resin container having elasticity, and when water is supplied to the cold water tank 8, the water tank 10 contracts by an amount of water W flowing out to reduce a volume and deform.

Since the structure for attaching and detaching the water tank 10 to and from the water filling tube 4 of the cold water tank 8 is as described above, the description thereof will be omitted.

A filter 74 is connected to the exhaust pipe 32 connected to the exhaust mechanism 6 of the cold water tank 8.

The cold water tank 8 is provided with a separation plate 78, and the cold water L W side of the cold water tank 8 and the water W supplied from the water tank 10 are separated by the separation plate 78. a water supply pipe 82 for guiding the water W to the hot water tank 80 side is connected to the center of the separation plate 78.

In the cold water tank 8, an evaporator 84 is provided as a cooling means on an outer wall portion, refrigerant circulates from a compressor 86 to the evaporator 84, and takes heat from the cold water tank 8 side, the temperature of cold water L W in the cold water tank 8 is detected by a temperature sensor 88-1, the compressor 86 is controlled based on the detected temperature, cold water L W is controlled to a constant cold water temperature, and control of the compressor 86 is performed by a control unit 90.

Cold water L W is supplied from cold water tank 8 through cold water supply passage 94, water is supplied from the bottom surface side of cold water tank 8 to cold water port 92, and water supply or release is performed by opening or closing cold water solenoid valve 96-1, cold water solenoid valve 96-1 is controlled by control unit 90, and is opened when cold water switch 100 on operation panel unit 98 is pressed, and is closed by releasing the pressing.

A hot water heater 102 is provided as a heating unit on an outer wall portion of the hot water tank 80. The hot water heater 102 is, for example, an electric heater, and heats the hot water tank 80 by heat generation. The temperature of the warm water HW in the warm water tank 80 is detected by the temperature sensor 88-2. The warm water heater 102 is controlled according to the detected temperature, and the warm water HW is controlled to a constant warm water temperature. The control of the hot water heater 102 is executed by the control unit 90.

The supply of the warm water HW from the warm water tank 80 is performed from the warm water port 104. The hot water HW is supplied from the top surface side of the hot water tank 80 to the hot water port 104 via the hot water supply passage 106, and the water supply or the release thereof is performed by opening and closing the hot water solenoid valve 96-2. The hot water solenoid valve 96-2 is controlled by the control unit 90 to be opened when the hot water switch 108 is pressed, and to be closed by releasing the pressing.

A bypass line 110 is connected between the cold water tank 8 and the hot water tank 80 in parallel with the water supply pipe 82. A bypass valve 96-3 is provided in the bypass line 110. When the high-temperature water circulates, the bypass valve 96-3 is controlled to be opened, so that the high-temperature water VHW circulates from the hot-water tank 80 to the cold-water tank 8 using the water supply pipe 82 and the bypass line 110 as a high-temperature water circulation line. During the circulation of the high-temperature water, the controller 90 controls the hot water heater 102 to warm the hot water HW in the hot water tank 80 to the high-temperature water VHW.

Fig. 6 shows an example of the control section 90. The control unit 90 is constituted by a computer. The control unit 90 includes a processor 112, a storage unit 114, a super timer 116, and an input/output unit (I/O) 118.

The processor 112 executes the program in the storage unit 114 to control the cold and hot water, and on the other hand, to control the high-temperature water circulation as described above. A high temperature water circulation procedure is included in the procedure.

The storage unit 114 is an example of a storage unit, and stores data such as a program executed by the processor 112, a start time of a high-temperature water cycle assigned to a switch, and a high-temperature water cycle time. The storage unit 114 includes a ROM (Read-Only Memory) and a RAM (Random-Access Memory), and may be a recording medium such as a hard disk or a semiconductor Memory.

The super timer 116 measures time from the time of power supply access, for example, and adds up clocks in the system to continuously measure the elapsed time from the time of power supply access.

The I/O118 receives input of detection signals from the water level sensor 38 and the temperature sensors 88-1 and 88-2, and input of ON/OFF signals from the lock release switch 120, the cold water switch 100 on the operation panel 98, the warm water switch 108, and the economizer switch 122. The I/O118 sends out control output to the exhaust valve 30, the compressor 86, the cold water solenoid valve 96-1, the warm water solenoid valve 96-2, the bypass valve 96-3 and the warm water heater 102, and the cold water tank warning lamp 124-1, the lock release display lamp 124-2, the warm water display lamp 124-3, the high temperature display lamp 124-4, the cold water display lamp 124-5, the weak cold display lamp 124-6, the repeated setting display lamp 124-7, the energy-saving middle display lamp 124-8 and the high temperature water circulation display lamp 124-9 on the operation panel part 98. The cold water tank warning lamp 124-1 generates a display for promoting the supply of water to the cold water tank 8, starts a short-period blinking by the OFF (OFF) of the water level sensor 38, transits to a long-period blinking by the simultaneous long press of the cold water switch 100 and the warm water switch 108, and turns OFF the lamp by the ON (ON) of the water level sensor 38.

< control of the Water fountain 70 >

Fig. 7 shows the processing steps of the control action of the water dispenser 70.

In this processing step, power supply is started by the connection of the power switch. The initialization of the water dispenser 70 is executed with the start of the power supply as a starting point (S101), and after the initialization, whether the water level sensor 38 is on or not is determined (S102).

If the water level sensor 38 is not turned on (NO in S102), the cold water tank warning lamp 124-1 blinks (S103). In this case, the blinking is set to a short cycle to urge the user to perform the next operation.

The simultaneous pressing of the cold water switch 100 and the warm water switch 108 for a predetermined time allocated to the simultaneous pressing is determined (S104). When the cold water switch 100 and the warm water switch 108 are simultaneously pressed for more than a predetermined time (YES in S104), the long-cycle blinking of the cold water tank warning lamp 124-1 is started (S105).

The detection temperature T of the temperature sensor 88-2 is acquired from this point (S106), and it is determined whether or not the detection temperature T is equal to or higher than the reference temperature Tr (S107). Tr may be 50[ ° C ], for example.

If T < Tr (no in S107), the bypass valve 96-3 is switched to the open state (S108), and the exhaust valve 10 is switched to the open state (S110) in standby for a predetermined time (e.g., 90[ sec ]) until the switching of the bypass valve 96-3 is completed (S109). If T ≧ Tr (YES in S107), S108 and S109 are skipped, and the process proceeds to S110. The Air in the cold water tank 8 and the warm water tank 80, which are maintained in a sealed state together with the water container 10, is discharged to the outside Air through the exhaust valve 30 by the open state of the exhaust valve 10. At this time, the water W in the water container 10 is supplied into the cold water tank 8 and the warm water tank 80.

In this state, it is determined whether or not the water level sensor 38 is on (S111). If the water level sensor 38 is turned on (yes in S111), the cold water tank warning lamp 124-1 is turned off (S112). Thereby, the end of water supply is notified.

The bypass valve 96-3 is switched to the closed state (S113), and the exhaust valve 30 is closed (S114). When the air release valve 30 is closed, the cold water tank 8 and the hot water tank 80 are restored to the closed state together with the water tank 10, and the water supply from the water tank 10 is stopped.

As a result, the cold water tank 8 and the warm water tank 80 are maintained at the reference water level, and the process shifts to the normal control (S115).

In S102, when the water level sensor 38 is turned on (yes in S102), the process from S103 to S114 is skipped, the routine proceeds to the normal control in S115, and the normal control is continued.

The normal control includes temperature control of the cold water tank 4 and the warm water tank 80, and high-temperature water circulation control for sterilization performed in a predetermined time unit.

< control of high-temperature Water circulation >

Fig. 8 shows the processing steps of the high temperature water circulation control. In this temperature control, the temperature detected by the temperature sensor 88-1 is T1, the high temperature water base temperature is TVH, and the high temperature water base duration is tref. As an example, TVH 85[ ° c ] and tref 30[ min ].

In this processing step, after the operation shifts to the high-temperature water circulation mode, the compressor 86 is stopped (S201), the hot water heater 102 is turned on, and heating of the hot water HW is started (S202).

The bypass valve 96-3 is opened, and high-temperature water circulation is performed to circulate the high-temperature water VHW from the hot water tank 80 to the cold water tank 8 (S203).

In the high temperature water cycle, the temperature of the high temperature water and the duration of the high temperature water are monitored. That is, it is determined whether the detected temperature T1 of the high temperature water VHW is T1 ≧ TVH, and whether the duration of this state, i.e., the high temperature water duration T, is T ≧ tref (S204).

Even if T1< TVH, or T1 ≧ TVH, if T < tref (NO at S204), the process returns to S203 and proceeds to S203 and S204. If T1 is more than or equal to TVH and T is more than or equal to tref (S204 is yes), the high temperature water circulation is ended. The bypass valve 96-3 is thereby closed, the normal operation state is shifted to (S205), and the temperature control of the cold water tank 8 and the hot water tank 80 described above is executed.

< effects of example 2>

According to this embodiment 2, the following effects can be obtained:

(1) according to the water dispenser 70 of example 2, the same effects as those of the above-described one embodiment and example 1 can be obtained.

(2) In the replacement of the water tank 10 and the repeated filling operation, the intrusion of air into the water tank 10 side can be prevented, and the reliability of the water dispenser 70 can be improved.

[ test results ]

A water injection experiment using the water injection cylinder part 4 was performed. In this experiment, a water injection tube portion 4 (example) was formed in which the diameter Φ 1 of the water injection passage 12 was 6.5[ mm ], the diameter Φ 2 of the space portion 18 was 12[ mm ], and the diameter Φ 3 of the water injection passage 12 of the rear port portion 20 was 6[ mm ], and as a comparative example, a water injection tube portion (comparative example) was formed in which the water injection passage 12 was formed only in the diameter Φ 1 of 6.5[ mm ]. In contrast to the water injection experiments using these, in the comparative examples, the passage of a large number of bubbles was confirmed, and in the examples, the passage of bubbles was hardly confirmed. From this experiment, it was confirmed that it is effective to provide the space 18 in the water injection cylinder 4.

[ other embodiments ]

(1) In the above embodiment, the cold water tank 8 is exemplified, but the cold water tank 8 is not limited thereto as long as it is a tank that stores water.

(2) In the above embodiment, the water filling cylinder 4 is provided in the cold water tank 8, and in the embodiment 1, the water filling cylinder 4 is provided in the lid portion 52 of the cold water tank 8, but may be provided on the tank portion 50 side.

(3) In example 1, the rear side port 20 is separated from the water injection tube section 4 and the main body section 4-2, and the main body section 4-2 and the rear side port 20 are detachable, but may be detachable by being divided by the main body section 4-2 on the main body section 4-2 side.

(4) In the above embodiment 2, a water dispenser supplying cold water or warm water is described, but a carbonated water generating function including a carbonated water supply source and a carbonated water tank may be provided, and carbonated water may be generated and supplied by supplying cold water L W from the cold water tank side to the carbonated water tank and supplying carbonated water from the carbonated water supply source.

As described above, the most preferred embodiments of the present invention have been described, but the present invention is not limited to the above description. Various modifications and changes can be made by those skilled in the art in light of the spirit of the invention as described in the claims and/or disclosed in the modes for carrying out the invention, and such modifications and changes are certainly within the scope of the present invention.

Industrial applicability

The present invention is advantageous in that a space portion having a larger diameter than a needle portion is provided in a water filling cylinder portion inserted into a water container to connect a cold water tank to each other, and in that replacement of air in the cold water tank with water filled from the water container and intrusion of air into the water container can be avoided at the time of water filling.

Description of the reference symbols

2 Water injection mechanism part

4 Water injection barrel part

6 exhaust mechanism part

8 cold water tank

10 Water container

4-1 needle part

4-2 main body part

12 water injection path

14 sharp part

15 notch part

16 through hole

18 space part

20 rear side mouth part

21 tapered wall section

22 insertion part

23 orthogonal wall section

24O-ring

25 concave part

26 step part

29 exhaust port

30 exhaust valve

32 exhaust pipe

34 ventilation part

36 valve core

38 water level sensor

40 opening part

42 screw part

44 minor diameter portion

46 thread part

48 mounting part

50 container part

52 cover part

54 bending part

56O-ring

58 air exhaust tube

60 shape-preserving container

62 opening part

64 insertion part

66 leading part

68 perforable portion

70 drinking machine

72 casing

74 Filter

78 separation plate

80 warm water tank

82 water supply pipe

84 evaporator

86 compressor

88-1, 88-2 temperature sensor

90 control part

92 Cold water port

94 cold water supply path

96-1 cold water electromagnetic valve

96-2 warm water electromagnetic valve

96-3 bypass valve

98 operation panel section

100 cold water switch

102 Warm water heater

104 warm water tap

106 hot water supply path

108 warm water switch

110 bypass line

112 processor

114 storage unit

116 super timer

118 input/output unit

120 lock release switch

122 energy-saving switch

124-1 cold water tank warning lamp

124-2 unlocking display lamp

124-3 warm water display lamp

124-4 high-temperature display lamp

124-5 cold water display lamp

124-6 weak cold display lamp

124-7 repeated setting display lamp

124-8 energy-saving middle display lamp

124-9 high-temperature water circulation display lamp

Claims

1. A water dispenser, which is characterized in that,

the water tank for storing water is provided with a water filling cylinder part, the water filling cylinder part is provided with a space part and a water tank inner cylinder part, the flow path diameter of the space part is larger than a needle part inserted into the water container, the water tank inner cylinder part is arranged at the inner side of the water tank,

the inner cylindrical part of the water tank is provided with a water inlet having a diameter smaller than that of the space part.

2. The water dispenser of claim 1,

the water filling port is submerged in the water at the reference water level of the water tank.

3. The water dispenser of claim 1,

the space portion is a cylindrical cavity portion.

4. A water dispenser, which is characterized in that,

the water dispenser is provided with:

a water tank for storing water; and

a water filling cylinder part which is inserted with a needle part in a water container and is used for filling water from the water container to the water tank,

the water filling cylinder portion includes a retention portion that inhibits air from entering the water container and allowing water to pass therethrough when the water tank is filled with water, and retains water in the water filling cylinder portion.

5. The water dispenser of claim 1 or 4,

the water injection cylinder part is arranged on the cover part of the water tank.

6. The water dispenser of claim 1 or 4,

the water dispenser further includes:

a water level sensor that detects a water level of the water tank; and

an air discharge mechanism part for discharging air from the water tank,

the air exhausting mechanism part exhausts the water tank according to the water level detection of the water level sensor, and the water in the water container is injected into the water tank through the water injection cylinder part.

7. The water dispenser of claim 4,

a water filling mechanism including the water filling cylinder is provided in an upper portion of the tank, and the retention section is disposed in the tank so as to penetrate from the inside to the outside of the tank.

8. The water dispenser of claim 1 or 4,

and, the water injection cylinder part is formed by stainless steel or other metals.

9. A water dispenser, which is characterized in that,

the water tank for storing water is provided with a water injection cylinder part,

the water injection tube section is provided with:

a space part having a larger flow path diameter than the needle part inserted into the water container;

a main body part formed with the needle part inserted into the water container;

a water injection passage that communicates the needle portion with the space portion;

an inclined wall portion that expands from the water injection passage to the space portion; and

and an opening end portion in which a water filling path is formed to be narrower than the space portion and the space portion communicates with the water tank.