TW201516354A - Drinking water supply device - Google Patents

Abstract

This drinking water supply device for cooling drinking water stored in a cold water tank and supplying same is characterized in being provided with: an exchangeable water tank for supplying drinking water to the cold water tank; a first pipe for connecting the water tank to the cold water tank; a first valve, which is provided on the first pipe and is for allowing drinking water to flow only in the direction from the water tank to the cold water tank; a second pipe for connecting the cold water tank to the water supply port; a third pipe for connecting the first pipe with the second pipe; a second valve provided at a position between the connection of the second pipe to the third pipe and the water supply port; a third valve provided in the third pipe; a heating means for heating the drinking water inside the cold water tank; and a control means for performing control so as to stop the cooling means, operate the heating means, close the second valve and open the third valve during sterilization.

Description

Beverage water supply device

The present invention relates to a technique for sterilizing a normal temperature portion of a beverage water supply device that supplies beverage water.

A beverage water supply device that stores beverage water and heats, cools, or supplies it at a normal temperature is widely used. For example, Patent Document 1 describes a beverage water supply device that stores the beverage water supplied from the container in a water supply tank and cools it, and then supplies the cooled beverage water from the water supply port.

In the beverage water supply device, in the beverage water which is retained in the "parts which are normal temperature in a normal state", there is a concern that various bacteria are propagated. Therefore, various methods for sterilizing the portion have been proposed.

Patent Document 2 describes a beverage water supply device that sterilizes by "circulating water in a water tank through a sterilizing device or a bacteria filter".

Patent Document 3 describes a pipe in which a hot water tank and a cold water tank are connected, and the hot water in the hot water tank is circulated to the piping. A beverage water supply machine that sterilizes with a cold water tank.

The beverage water supply device described in Patent Document 4 is a piping system that can supply both hot water and cold water, and is a normal temperature or cooled piping system, a cold water tank, etc., and is formed by a sterilization heater. Heat sterilization device. Further, in this document, a structure in which hot water accumulated in a hot water tank is introduced into a cold water tank and sterilized is also described.

Patent Document 5 and Patent Document 6 describe a heat sterilization device for a mineral water supply device having a communication pipe connecting a cold water tank and a hot water tank, and a circulation pump provided in the communication pipe. The electromagnetic valve. In the heat sterilization device, the material of each of the above members is limited to maintain the original delicate flavor (flavor) of the mineral water.

Patent Document 7 relates to a hot water supply system device, and has a structure in which a "circulating water sterilizer and a fluid activation device are provided in a hot water supply pipe portion for circulating a hot water pipe."

[Advanced technical literature] [Patent Literature]

Patent Document 1: Japanese Utility New Case Registration No. 3173048

Patent Document 2: Japanese Patent Laid-Open No. 3-43398

Patent Document 3: Japanese Patent No. 4419854

Patent Document 4: Japanese Patent No. 3387526

Patent Document 5: Japanese Patent No. 4137114

Patent Document 6: Japanese Patent Laid-Open No. 2008-156001

Patent Document 7: Japanese Patent Laid-Open Publication No. 2008-196736

In the case of a beverage water supply device that does not have a "hot water tank that stores hot water in advance in a normal use state", in order to sterilize the piping portion, it is necessary to provide an additional member such as a bacteria filter and a heating device in the piping portion.

In view of the above, it is an object of the present invention to provide a beverage water supply device capable of performing sterilization in a pipe with a simple structure even when a hot water tank is not provided.

The beverage water supply device of the present invention is a beverage water supply device that includes a cold water tank for storing beverage water and a cooling means for cooling the beverage water stored in the cold water tank, and supplies the cooled beverage water from the water supply port. In order to have: a replaceable water tank for supplying beverage water to the cold water tank; and a first pipe connected to the water tank and the cold water tank; and a first valve which is disposed in the first pipe and allows the beverage water only Circulating in a direction from the water tank toward the cold water tank; and a second pipe connecting the cold water tank and the water supply port; and a third pipe connecting the first pipe and the second pipe; a second valve which is located in the middle of the second pipe and is provided at "a position between the connection portion connected to the third pipe and the water supply port"; and a third valve which is disposed in the third pipe; The heating means is for heating the beverage water in the cold water tank; and the control means performs the following control: when the sterilization operation is performed, the cooling means is stopped, the heating means is operated, the second valve is closed, and the third valve is opened.

The beverage water supply device includes a first pipe that connects the water tank and the cold water tank, and a second pipe that connects the cold water tank and the water supply port, and the first pipe and the second pipe are connected by the third pipe. When sterilizing, the second valve provided in the second pipe is closed by the control means, and the third valve provided in the third pipe is opened, and the beverage water heated by the heating means is circulated to: the cold water tank, the second pipe, and the third pipe First piping. Therefore, even in the case where the hot water tank is not provided, the cold water tank and the inside of the piping can be sterilized by a simple structure.

1,3,4,5‧‧‧Beverage water supply device

2‧‧‧ Container

10‧‧‧ frame

11‧‧‧ vents

12‧‧‧ 盖部

20‧‧‧Operation panel

21‧‧‧Water supply port

22‧‧‧Water supply button

23‧‧‧Bacterium button

24‧‧‧ indicator

25‧‧ ‧ socket

30, 30a, 30b‧‧‧ sink

31‧‧‧ mouth

32‧‧‧ cold sink

33‧‧‧Baffle

34‧‧‧Float

35‧‧‧Air holes

36‧‧‧sterilization filter

37‧‧‧Peltier element

38, 38a, 38b‧‧‧ water level sensor

39, 39a, 39b‧‧‧ Temperature Sensor

40‧‧‧ hot water tank

41‧‧‧First piping

42‧‧‧Second piping

43‧‧‧ Third piping

44‧‧‧Fourth piping

45‧‧‧ fifth piping

46‧‧‧Vapor discharge pipe

47, 48‧‧‧ Connections

50, 50a, 50b‧‧‧ injection port

51‧‧‧First valve

52‧‧‧Second valve

52a‧‧‧Solenoid valve

53‧‧‧ third valve

54‧‧‧fourth valve

55‧‧‧ fifth valve

56, 57‧‧‧ Guide members

60‧‧‧ pump

70‧‧‧Evaporator

71‧‧‧Pipe

72‧‧‧Compressor

73, 74‧‧‧ heater

81‧‧‧Control substrate

82‧‧‧Power Department

83‧‧‧Reversing switch

Fig. 1 a is a plan view of the beverage water supply device.

Figure 1 b: Front view of the beverage water supply device.

Figure 1 c: Side view of the beverage water supply device.

Fig. 2 is a view for explaining the internal structure of the beverage water supply device.

Figure 3: Functional block diagram of the beverage water supply device.

Fig. 4a is a view for explaining the internal structure of the beverage water supply device.

Fig. 4b is a view for explaining the internal structure of the beverage water supply device.

Fig. 5 is a view for explaining the action of the guiding member.

Fig. 6 is a table showing the opening and closing of the valve in each use state.

Figure 7: Functional block diagram of the beverage water supply device.

Fig. 8 is a view showing a structural example of a pipe.

Hereinafter, the present invention will be described in detail with reference to the drawings and in accordance with the embodiments. In the specification of the present case, the term "beverage water" means that in addition to water and mineral water, all beverages that humans can drink are included.

(Example 1)

In the first embodiment, a description will be given of a beverage water supply device that constitutes "only supply cold water". Fig. 1a is a plan view of the beverage water supply device 1, Fig. 1b is a front view of the beverage water supply device 1, and Fig. 1c is a side view of the beverage water supply device 1. Fig. 2 is a view for explaining the internal structure of the beverage water supply device 1, and Fig. 3 is a functional block diagram of the beverage water supply device 1.

The beverage water supply device 1 includes a casing 10 having a rectangular shape in a rectangular shape. The upper part of the frame 10 becomes a detachable cover 12 for the user The cover 12 can be removed to perform replacement of the water tank 30 (described later). An operation panel 20 and a socket 25 are provided on the front side surface of the casing 10, and a vent hole 11 is provided on the side surface of the casing 10.

The operation panel 20 is a substantially semicircular plate-shaped member, and a water supply button 22, a sterilization button 23, and an indicator 24 are provided on the upper surface thereof. Further, on the lower surface of the operation panel 20, a water supply port 21 through which cold water flows out is provided.

The holder 25 is a slightly semicircular plate-like member for placing the "container 2 for receiving the beverage water flowing out from the water supply port 21".

The water tank 30 is, for example, a bottle-shaped container made of synthetic resin, and contains beverage water inside. In the central portion of one end of one of the water tanks 30, a mouth portion 31 which is "thinner than the other portions and has an opening at the front end" is provided, and an injection port 50 is provided outside the mouth portion 31.

Below the water tank 30, a cold water tank 32 such as a cylindrical member made of metal is provided. The injection port 50 of the water tank 30 and the upper portion of the cold water tank 32 are connected by the first pipe 41. The first pipe 41 is provided with a check valve itself, and the first valve of the drink water is passed only in the direction from the water tank 30 toward the cold water tank 32 (the direction from the upper side in the second drawing to the lower side). 51. Therefore, once the water tank 30 is positioned, the beverage water in the water tank 30 will flow down to the cold water tank 32 by gravity.

On the side surface of the cold water tank 32, a Peltier element 37 (cooling means and heating means) for cooling the beverage water in the cold water tank 32 in a normal state and heating it during sterilization is attached. In addition, although not shown in the drawing, heat dissipation for cooling the Peltier element 37 is also installed. Side radiator and fan. The cooling and heating of the beverage water in the cold water tank 32 may be performed by means other than the Peltier element 37, such as a cooling device composed of a compressor or the like, a heater composed of a heating wire, or the like.

An air hole 35 is provided in the upper surface of the cold water tank 32, and a sterilizing filter 36 for preventing the intrusion of bacteria in the atmosphere into the cold water tank 32 is provided in the air hole 35. Further, inside the cold water tank 32, a baffle 33 for preventing the normal-temperature beverage water flowing down from the water tank 30 from flowing directly into the second pipe 42 is provided; a float 34 for preventing the beverage water from overflowing from the air hole 35, and a water level The sensor 38 and the temperature sensor 39.

The bottom of the cold water tank 32 and the water supply port 21 are connected by a second pipe 42. In the middle of the second pipe 42, a second valve 52 which is a solenoid valve itself is provided at a position closer to the water supply port 21 than the "connection portion connected to the third pipe 43". Further, a pump 60 is provided in the second pipe 42 at a position closer to the cold water tank 32 than the "connection portion connected to the third pipe 43".

The vicinity of the first valve 51 of the first pipe 41 and the middle of the second valve 52 of the second pipe 42 and the pump 60 are directly connected by the third pipe 43. In the third pipe 43, a third valve 53 which is a solenoid valve itself is provided.

The control board 81 (control means) provided inside the casing 10 is composed of a microcomputer, a memory, and other electronic circuit components, and is based on "the temperature sensor 39 mounted in the cold water tank 32". Feedback, the Peltier element 37 is controlled to maintain the beverage water inside the cold water tank 32 at a specific temperature. In addition, the control substrate 81 is corresponding to use The operation of each button on the operation panel 20 controls the second valve 52, the third valve 53, and the pump 60 to achieve a desired operation. Further, the control board 81 performs a notification that the "sink must be replaced" to the user based on the feedback from the water level sensor 38. When the notification is executed, since the water used for sterilization is not likely to be sufficiently high, it is preferable to set the prohibition sterilization operation. The control substrate 81 performs control for switching the polarity of the Peltier element 37 to stop the operation as a cooling means when the sterilization operation is performed, and operates as a heating means to close the second valve 52 and open the third valve 53.

The power supply unit 82 converts and rectifies the alternating current input from the outside, and supplies necessary electric power to the Peltier element 37, the second valve 52, the third valve 53, and the pump 60.

A reverse switch 83 is provided between the control unit 81 and the Peltier element 37 for inverting the polarity of the Peltier element 37.

Next, the operation of the drink water supply device 1 will be described. The beverage water supply device 1 performs the following operations when the supply of the beverage water is not performed and the sterilization is not performed. The pump 60 is stopped and the second valve 52 and the third valve 53 are closed. Therefore, there is no flow of beverage water between the water tank 30, the cold water tank 32, and the water supply port 21. Indicator 24 is shown to be extinguished. The Peltier element 37 is controlled by the control substrate 81 as a cooling means to cause the beverage water stored in the cold water tank 32 to form an appropriate temperature.

The beverage water supply device 1 performs the following operations when the user presses the water supply of the water supply button 22. Control the substrate 81 to make the third valve When the second valve 52 is opened and the pump 60 is operated for a specific period of time, the "beverage water stored in the lower portion of the cold water tank 32" is caused to flow out from the water supply port 21 by a specific amount via the second pipe 42. At this time, as long as the water tank 30 has sufficient water, the same amount of beverage water as the already flowing beverage water is supplied from the water tank 30 to the cold water tank 32 via the first pipe 41. The control substrate 81 stops the pump 60 and closes the second valve 52.

The beverage water supply device 1 performs the following operations when the user presses the sterilization button 23 for sterilization. The substrate 81 is controlled such that the reverse switch 83 (reverse means) is actuated to invert the polarity of the Peltier element 37, and the side in contact with the cold water tank 32 is used as the heat radiating side, and the side in contact with the heat sink is used as the heat absorbing end. On the side, the Peltier element 37 is actuated as a heating means. Further, the control board 81 lights the indicator 24 to notify the user that "the beverage water supply device 1 is in the sterilization operation". Preferably, it is preset that during the period in which the indicator 24 is illuminated, no action is performed even if the water supply button 21 is pressed.

The control substrate 81 urges the Peltier element 37 to operate to heat the beverage water in the cold water tank 32 to a specific temperature suitable for sterilization. Next, the sterilization temperature is maintained for a specific sterilization time while the third valve 53 is opened and the pump 60 is actuated. At this time, the beverage water inside the beverage water supply device 1 is circulated to the cold water tank 32 and the second pipe 42 (the portion closer to the cold water tank 32 than the second valve 52) as indicated by the arrow in Fig. 2, The three pipes 43, the first pipe 41, and the cold water tank 32. Therefore, the first pipe 41, the second pipe 42, and the third pipe 43 which are at normal temperatures during standby can be sterilized.

The sterilization temperature is set to about 65 ° C in the case of performing sterilization at the same level as "low-temperature sterilization which does not impair the flavor of the beverage water". It is generally considered that the sterilization time is preferably set to 30. Minutes or so.

Once the sterilization is completed, the control substrate 81 closes the third valve 53 and activates the reverse switch 83 to restore the polarity of the Peltier element 37, and the side in contact with the cold water tank 32 serves as the heat absorption side, and the side in contact with the heat sink As the heat-dissipating side, it is actuated as a cooling means, and further cooled until the beverage water in the cold water tank 32 becomes a specific temperature. The substrate 81 is controlled to extinguish the indicator 24 once the beverage water has reached a specific temperature. As described above, since the sterilization is performed so as not to impair the flavor of the beverage water, the beverage water in the cold water tank 32 is directly cooled without being discharged, and can be used as beverage water.

The sterilization can be performed immediately when the sterilization button 23 is pressed as described above, or a timer can be provided, and the beverage water supply device 1 can be executed at a time specified by the user, for example, in the middle of the night. Further, the frequency at which sterilization is performed is arbitrarily set depending on the state of use, and therefore it is preferable to set in advance such that the setting can be selected every day/every day/every week, or once every two weeks.

However, it is also possible to omit the pump 60, which uses convection to promote warm water circulation when sterilizing, and uses gravity to naturally drain the beverage water when water is supplied.

Further, it is also possible to heat the beverage water in the cold water tank 32 by the Peltier element 37 according to the user's selection, and supply the hot water from the water supply port 21. In this case, the control substrate 81 is in the following manner The Peltier element 37 is controlled such that the beverage water in the cold water tank 32 is formed at a different appropriate temperature during standby and sterilization.

The beverage water supply device 1 includes a first pipe 41 that connects the water tank 30 and the cold water tank 32, and a second pipe 42 that connects the cold water tank 32 and the water supply port 21, and the first pipe 41 and the second pipe 42 are third. The pipe 43 is connected. When sterilizing, the second valve 52 provided in the second pipe 42 is closed by the control substrate 81, and the third valve 53 provided in the third pipe 43 is opened to heat the Peltier element 37 which is added as a heat means. The beverage water is circulated in the cold water tank 32, the second pipe 42, the third pipe 43, and the first pipe 41. Therefore, even if the hot water tank is not provided, the cold water tank 32 and the pipes 41, 42, and 43 can be sterilized by a simple structure. Since the circulation of the hot water during sterilization is forced by the pump 60, the hot water can be reliably circulated to the respective portions as compared with the case where only the convection is used.

Further, the beverage water supply device 1 includes a reverse switch 83, and the Peltier element 37 can also be used as a cooling means and a heating means. Therefore, it can be manufactured at a lower cost than when the cooling means and the heating means are formed by different parts.

(Example 2)

In the second embodiment, the beverage water supply device 3 constituting "both cold water and hot water can be supplied" will be described. The same constituent elements as those of the beverage water supply device 1 of the first embodiment are denoted by the same reference numerals as in the first to third embodiments, and the description thereof will be omitted.

Figure 4 is a diagram for explaining the inside of the beverage water supply device 3. FIG. 7 is a functional block diagram of the beverage water supply device 3. The appearance of the beverage water supply device 3 is substantially the same as that of the beverage water supply device 1 of the first embodiment. However, since the beverage water supply device 3 is configured to supply both cold water and hot water, the water supply button 22 is provided with cold water and Use for hot water.

In the internal structure of the drink water supply device 3 shown in Fig. 4, the structure for supplying cold water is the same as that of the drink water supply device 1 of Fig. 2 . That is, it is composed of the following members: a water tank 30a having the same structure as the water tank 30 of Fig. 2; a cold water tank 32; a first valve 51; and an inlet 50a for connecting the water tank 30a and a first pipe 41 of the cold water tank 32; The cold water tank 32 and the water supply port 21, and the second pipe 42 having the second valve 52 and the pump 60; the third pipe 43 having the third valve 53 directly connected to the first pipe 41 and the second pipe 42. The pump 60 can be omitted as in the first embodiment. Further, the second valve 52 and the third valve 53 are not solenoid valves, but constitute a function of the guide members 56 to be described later.

The cooling means for cooling the beverage water in the cold water tank 32 is composed of an evaporator 70, a pipe 71, a compressor 72, and the like, and circulates the refrigerant to utilize vaporization heat (also called vaporization heat). Cooling heat to perform a heat exchange cooling device. Further, as a heating means for heating the beverage water in the cold water tank 32, a heater 73 composed of a heating wire or the like is used. As in the first embodiment, a Peltier element and a reverse switch may be provided, and the Peltier element may also be used as a cooling means and a heating means.

In the structure for supplying hot water, the beverage water supply device In the third aspect, the hot water tank 40 and the water tank 30b (the water tank for the hot water tank) for supplying the normal temperature drink water to the hot water tank 40 are provided. The water tank 30b has the same structure as the water tank 30 of Fig. 2, and the injection port 50b and the bottom of the hot water tank 40 are connected by the fifth pipe 45. Therefore, once the water tank 30b is positioned, the beverage water in the water tank 30b will flow down to the hot water tank 40 by gravity.

The hot water tank 40 is provided with a water level sensor 38b, a temperature sensor 39b, a heater 74 (heat sink heating means) for heating the beverage water in the hot water tank 40, and water for generating the hot water tank 40. The vapor is discharged to the external vapor discharge pipe 46. When it is determined by the water level sensor 38b that "the water in the hot water tank 40 exhibits a small amount of water", in order to prevent air-burning (referring to continuous heating after evaporation of all the moisture), it is preferable to control to slow down or prohibit heating. The action of the device 74.

The second pipe 42 and the hot water tank 40 are connected by a fourth pipe 44. Specifically, one end of the fourth pipe 44 is formed to be open and disposed at the upper portion of the hot water tank 40, and the other end of the connecting portion 47 between the second pipe 42 and the third pipe 43 is connected via the guide member 56.

Since the temperature of the water suitable for sterilization (as explained in the first embodiment, for example, 65 ° C) is different from the temperature of the water suitable for drinking (for example, 90 ° C close to the boiling point of water), in order to provide drinking water during sterilization. Therefore, it is necessary to separate into two streams of water at the joint portion 47. Therefore, the connecting portion 47 is provided with a guide member 56 for avoiding "the heated sterilizing water flow from the cold water tank 32 side of the second pipe 42 to the third pipe 43" and "from the fourth pipe" 44 the heated drinking water stream flowing to the water supply port 21 side of the second pipe 42 is mixed, and the aforementioned two waters are mixed The flow guides and functions as a second valve 52, a third valve 53, a fourth valve provided in the fourth pipe 44, and a fifth valve 55 provided in the second pipe.

The control board 81 is configured to function as a valve by causing the guide member 56 to rotate by a motor or the like not shown in the drawing.

The diagram on the left side of Fig. 5 is a diagram conceptually explaining the action of the mechanism "the function of the second to fifth valves is simplified by using the guide member 56". The guide member 56 is a disk-shaped member having a thickness slightly larger than the outer diameter of the pipes 42 to 44, and is provided inside the inner diameter to be substantially equal to the inner diameter of the pipes 42 to 44, and the direction is changed by 90 degrees (second pipe) The horizontal portion 42a of the 42 and the vertical portion 42b, the horizontal portion 42a of the second pipe 42, the third pipe 43, the vertical portion 42b of the second pipe 42, and the fourth pipe respectively form the pipe portion 56a at the intersection angle. A portion other than the tube portion 56a of the guide member 56 is formed with a wall portion 56b made of a metal or the like which does not have water permeability.

In other words, the same action as the "opening and closing of the valve" can be achieved by the rotational movement of the guiding member 56. More specifically, the connection portion between the guide member 56 and the third pipe 43 serves as the third valve 53, and the connection portion between the guide member 56 and the second pipe 42a becomes the fifth valve 55, and the guide member 56 and The connection portion between the second pipe (water supply port side) 42b serves as the second valve 52, and the connection portion between the guide member 56 and the fourth pipe 44 serves as the fourth valve 44.

When the beverage water supply device 3 supplies drinking hot water during sterilization, the hot water for sterilization will be as shown by the arrow A in the upper left of Fig. 5. It is shown that the horizontal portion 42a of the second pipe 42 flows to the third pipe 43 via the pipe portion 56a of the guide member 56. Since the two end portions of the pipe portion 56a are connected to the horizontal portion 42a of the second pipe and the third pipe 43, the third valve 53 and the fifth valve 55 are opened, and the second valve 52 and the fourth valve 54 are closed. status.

The drinking hot water is as indicated by the arrow B at the upper left in Fig. 5, and although there is a need to flow from the fourth pipe 44 to the vertical portion 42b of the second pipe 42, the water for sterilizing hot water flows with the water for drinking hot water. Will not mix.

Therefore, when the beverage water supply device 3 supplies drinking hot water during sterilization, the drinking hot water temporarily switches the guiding member 56 as shown in the center of the left side of Fig. 5, and as indicated by the arrow C, from the fourth piping 44 flows to the vertical portion 42b of the second pipe 42 via the pipe portion 56a of the guiding member 56. Since the two end portions of the pipe portion 56a are connected to the vertical portion 42b of the second pipe and the fourth pipe 44, the third valve 53 and the fifth valve 55 are closed, and the second valve 52 and the fourth valve 54 are opened. status.

Once the supply of the hot water is completed, the guiding member 56 is again switched to the position at the upper left of the fifth drawing, and sterilization is performed again.

When the beverage water supply device 3 supplies cold water during a normal period, the cold water flows from the horizontal portion 42a of the second pipe 42 to the second portion via the pipe portion 56a of the guide member 56 as indicated by an arrow D at the lower left of Fig. 5. The vertical portion 42b of the pipe 42. Further, in the standby state, the guide member 56 is located at a position where "the two end portions of the tube portion 56a are not connected to any of the pipes" (for example, from the state of the left side of the fifth figure, clockwise) The position of the rotation is 45 degrees) so that the beverage water does not flow down the water supply port 21. However, as shown in the drawing, it is preferable to provide the electromagnetic valve 52a in the vicinity of the water supply port 21 of the second pipe 42 as in the first embodiment, and it is more surely prevented that "the user inadvertently makes the drink water, especially the hot water. Outflow." The solenoid valve 52a is controlled by the control board 81, and is opened and closed in the same manner as the second valve 52.

In Fig. 6, the opening and closing state of each of the valves 52 to 55 in the respective operating states of the beverage water supply device 3 is shown. When cold water is supplied, the second valve 52 and the fifth valve 55 are opened, and the third valve 53 and the fourth valve 54 are closed. When hot water is supplied in a normal state, the second valve 52 and the fourth valve 54 are opened, and the third valve 53 and the fifth valve 55 are closed. When sterilized, the third valve 53 and the fifth valve 55 are opened, and the second valve 52 and the fourth valve 54 are closed. When the hot water is supplied during the sterilization, the third valve 53 and the fifth valve 55 are temporarily closed, and then the second valve 52 and the fourth valve 54 are opened to perform the water supply of the hot water. Once the water supply is completed, the second valve 52 is closed. The four valves 54 are opened again, and the third valve 53 and the fifth valve 55 are again opened to perform sterilization again.

Next, the operation of the beverage water supply device 3 will be described. The beverage water supply device 3 performs the following operations during standby. The pump 60 is stopped, and the guide member 56 is rotated to a position where "the tube portion 56a is not connected to any of the pipes", and the second valve 52, the third valve 53, the fourth valve 54, and the fifth valve 55 are all closed. In addition, the solenoid valve 52a is also closed. Therefore, there is no flow of beverage water between the water tanks 30a and 30b, the cold water tank 32, the hot water tank 40, and the water supply port 21. Indicator 24 is shown to be extinguished. The compressor 72 and the heater 74 are subjected to the following by the control substrate 81. Control: The beverage water stored in the cold water tank 32 and the hot water tank 40 is brought to an appropriate temperature. The heater 73 does not perform an action.

When the user presses the water supply button 22 for supplying cold water, the beverage water supply device 3 performs the following operations. The control board 81 holds the third valve 53 and the fourth valve 54 in a closed state by rotating the guide member 56 to the lower left position of the fifth drawing, and opens the second valve 52 and the fifth valve 55. Then, the electromagnetic valve 52a is opened, and the pump 60 is operated (operated) for a specific period of time, and the beverage water stored in the lower portion of the cold water tank 32 is caused to flow out from the water supply port 21 via the second pipe 42. At this time, as long as the water tank 30a has sufficient water, the same amount of beverage water as the already flowing beverage water is supplied from the water tank 30a to the cold water tank 32 via the first pipe 41. The control board 81 closes the second valve 52 and the fifth valve 55 by stopping the pump 60, closing the electromagnetic valve 52a, and rotating the guide member 56 to a position where the tube portion 56a does not form a connection with any of the pipes.

When the user presses the water supply button 22 for hot water supply under normal conditions, the beverage water supply device 3 performs the following operations. The control substrate 81 maintains the third valve 53 and the fifth valve 55 in a closed state by rotating the guiding member 56 to the center of the left side of the fifth drawing, and causes the second valve 52 and the fourth valve 54 to open only the specific one. time. Then, the electromagnetic valve 52a is opened, and the beverage water stored in the upper portion of the hot water tank 40 is discharged from the water supply port 21 by a specific amount via the second pipe 42 by gravity. At this time, the same amount of beverage water as that of the discharged beverage water is supplied from the water tank 30b to the hot water tank 40 via the fifth pipe 45. The control board 81 rotates the guide member 56 by closing the solenoid valve 52a to "the tube portion 56a does not match any The tube forms a position to connect, and the second valve 52 and the fourth valve 54 are closed. Similarly to the case where cold water is supplied, a pump is provided in the fourth pipe 44, and the hot water is sent out by the pump.

When the user presses the sterilization button 23, the beverage water supply device 3 performs the following operations. The control board 81 stops the compressor 72 and illuminates the indicator 24 to notify the user that "is in a sterilization operation".

The control substrate 81 causes the heater 73 to be actuated and heated until the beverage water in the cold water tank 32 reaches a specific sterilization temperature. Next, thereafter, the sterilization temperature is maintained for a specific sterilization time while the third valve 53 and the fifth valve 55 are opened and the pump 60 is actuated by rotating the guiding member 56 to the position at the upper left of the fifth drawing. At this time, the beverage water inside the beverage water supply device 3 is circulated to the cold water tank 32, the second pipe 42, the third pipe 43, the first pipe 41, and the cold water tank 32 as indicated by an arrow in FIG. Therefore, the first pipe 41, the second pipe 42, and the third pipe 43 which are at normal temperatures during standby can be sterilized.

When the user presses the water supply button 22 for hot water supply during the sterilization period, the beverage water supply device 3 performs the following operations. The control board 81 temporarily closes the third valve 53 and the fifth valve 55 by rotating the guide member 56 from the position on the upper left side in FIG. 5 to the position on the left side in the left side of FIG. 5, and causes the second valve 52 and the second valve 52 to The four valves 54 are only opened for a specific time. Next, the electromagnetic valve 52a is opened, and the beverage water stored in the upper portion of the hot water tank 40 is discharged from the water supply port 21 by a certain amount via the second pipe 42 by gravity, and thereafter, the electromagnetic valve 52a is closed and guided by the guide The lead member 56 returns to the position at the upper left of the fifth figure, and closes the second valve 52 and the fourth valve 54, and the third valve 53 and the fifth valve 55 are again opened and sterilized again.

When the sterilization is completed, the control substrate 81 rotates the guide member 56 to a position where "the tube portion 56a does not form a connection with any of the pipes", stops the heater 73, and causes the compressor 72 to operate to be cooled until the cold water tank 32 is closed. The beverage water becomes a specific temperature. The substrate 81 is controlled to extinguish the indicator 24 once the beverage water has reached a specific temperature.

The beverage water supply device 3 includes a fourth pipe 44 that supplies hot water from the hot water tank 40, and one end of the fourth pipe 44 is connected to the second pipe 42. When the water supply button 22 for hot water is pressed during sterilization, the control substrate 81 temporarily closes the third valve 53 and the fifth valve 55, and opens the second valve 52 and the fourth valve provided in the fourth pipe 44. After the water supply is performed 54 , the third valve 53 and the fifth valve 55 are opened to perform sterilization again. Then, the connecting portion 47 between the second pipe 52 and the third pipe 53 is provided with a guiding member 56 for separating the water flow of the hot water for sterilization and the water flow of the drinking hot water. Therefore, according to the beverage water supply device 3, the drinking hot water can be supplied from the water supply port 21 by temporarily interrupting the sterilization even during the sterilization operation. Even if it is interrupted, only the circulation of the hot water for sterilization is stopped, and the heater 73 continues to operate. Therefore, there is no problem that the temperature of the hot water for sterilization is lowered, and it takes a long time to reheat.

(Example 3)

In the third embodiment, the beverage water supply device 4 will be described. The structure of the beverage water supply device 4 is basically the same as that of the beverage water supply device 3 shown in Fig. 4, but is formed as shown in Fig. 4b. It is shown that by using the electromagnetic valve and the guiding member in combination, the hot water can be supplied without interruption. Similarly to the second drawing, in the second pipe 42, the portion between the "connection portion 47 between the third pipe 43 and the water supply port 21" is provided with a second valve 52 which is a solenoid valve itself, and is in the third The pipe 43 is provided with a third valve 53 which is a solenoid valve itself. In addition, a fifth valve which is a solenoid valve itself is provided at a position between the connecting portion 47 of the second pipe 42 and the pump 60, and is provided with electromagnetic itself in the vicinity of the connecting portion 47 of the fourth pipe 44. The fourth valve 54 of the valve. A guide member 57 is provided at the connecting portion 47.

The figure on the right side of Fig. 5 is a view conceptually explaining the action of the mechanism for "providing hot water without interruption of sterilization" by using the guide member 57 and the first to fourth valves in combination. At this time, the guide member 57 is provided with two tube portions 57a and 57c.

When the beverage water supply device 4 supplies hot water in a general state in which sterilization is not performed or during sterilization, the hot water for sterilization is indicated from the horizontal portion 42a of the second pipe 42 as indicated by an arrow E on the upper right side of FIG. The tube portion 57a of the guiding member 57 flows to the third pipe 43. The drinking hot water flows from the fourth pipe 44 to the vertical portion 42b of the second pipe 42 via the pipe portion 57c of the guide member 57 as indicated by an arrow F on the upper right side of Fig. 5 . At this time, since the tube portions 57a and 57c are separated at the wall portion 57b, the water flow of the hot water for sterilization does not mix with the water flow for drinking hot water.

According to this, in the beverage water supply device 4, when the guide member 57 is switched to the sterilization shown in the upper right of Fig. 5, when the hot water is supplied without interrupting the sterilization, as indicated by the arrow F, "The flow from the fourth pipe 44 to the second pipe 42 via the pipe portion 57a of the guide member 57 is formed. The vertical portion 42b" is sufficient, so that the second valve 52 and the fourth valve 54 are opened.

When the supply of the hot water ends, the second valve 52 and the fourth valve 54 are closed. Then, once the sterilization operation is completed, the third valve 53 and the fifth valve 55 are closed, and the guiding member 57 is switched. According to this state, when the beverage water supply device 4 supplies cold water in a normal state in which sterilization is not performed, the guide member can be switched to be in the lower right state of FIG. In this state, as long as the cold water is indicated by the arrow G on the lower right side of Fig. 5, the horizontal portion 42a of the second pipe 42 flows to the vertical portion 42b of the second pipe 42 via the pipe portion 57a of the guide member 57. The supply of cold water is achieved, thus opening the second valve 52 and the fifth valve 55.

The opening and closing state of each valve is the same as that of Fig. 6, but the structure disclosed in Fig. 4a is not required, and when the hot water is supplied during the sterilization, the operation of temporarily closing the third valve 53 and the fifth valve 55 is performed.

In this way, it is not necessary to rotate the guide member 57, and by opening and closing the second valve 52 and the fourth valve 54, the hot water can be supplied from the water supply port 21 without interrupting the sterilization operation.

Next, the operation of the beverage water supply device 4 will be described. Since the cooling means, the heating means, the hot water tank heating means, and the indicator are controlled in the same manner as in the second embodiment, the control of the electromagnetic valve and the guide member will be mainly described.

The beverage water supply device 4 performs the following operations during standby. The pump 60 is stopped, and the second valve 52, the third valve 53, the fourth valve 54, and the fifth valve 55 are all closed. The position of the guiding member 57 can form the fifth figure Any one of the upper right and lower right.

When the user presses the water supply button 22 for supplying cold water, the beverage water supply device 4 performs the following operations. The substrate 81 is controlled to keep the third valve 53 and the fourth valve 54 closed, the second valve 52 and the fifth valve 55 are opened, the guiding member 57 is rotated to the position at the lower right of FIG. 5, and the pump 60 is operated for a specific time. In response, the "beverage water stored in the lower portion of the cold water tank 32" is caused to flow out from the water supply port 21 via the second pipe 42. At this time, as long as the water tank 30a has sufficient water, the same amount of beverage water as the already flowing beverage water is supplied from the water tank 30a to the cold water tank 32 via the first pipe 41. The control substrate 81 stops the pump 60 and closes the second valve 52 and the fifth valve 55.

When the user presses the water supply button 22 for hot water supply under normal conditions, the beverage water supply device 4 performs the following operations. The control substrate 81 is kept closed by the third valve 53 and the fifth valve 55, the second valve 52 and the fourth valve 54 are opened, and the guiding member 57 is rotated to the position on the upper right side of FIG. 5 to be "stored in the hot water tank 40". The upper portion of the beverage water flows out of the water supply port 21 by a certain amount via the second pipe 42 by gravity. At this time, the same amount of beverage water as that of the discharged beverage water is supplied from the water tank 30a to the hot water tank 40 via the fifth pipe 45. The control substrate 81 closes the second valve 52 and the fourth valve 54.

When the user presses the sterilization button 23, the beverage water supply device 4 performs the following operations. The control substrate 81 opens the third valve 53 and the fifth valve 55, and rotates the guiding member 57 to the upper right position of Fig. 5, and causes the pump 60 to operate.

When the user presses the water supply button 22 for hot water supply during the sterilization period, the beverage water supply device 4 performs the following operations. The control substrate 81 is opened only when the third valve 53 and the fifth valve 55 are kept open, and the guide member 57 is held at the position on the upper right side of FIG. 5, so that the second valve 52 and the fourth valve 54 are only opened for a specific time. At the same time, the sterilization is performed, and the "beverage water stored in the upper portion of the hot water tank 40" is caused to flow out from the water supply port 21 by the gravity by the second pipe 42 by a specific amount.

(Example 4)

In the fourth embodiment, the beverage water supply device 5 will be described. The structure of the beverage water supply device 5 is basically the same as that of the beverage water supply device 3 shown in Fig. 4, but is formed as shown in Fig. 8 by separating the water flow and drinking of the sterilizing hot water by a solenoid valve. The hot water flow can supply hot water without interrupting sterilization. In this embodiment, no guiding members are employed.

In the beverage water supply device 5, the horizontal portion 42a of the second pipe 42 is bent downward vertically to be connected to the water supply port after passing over the connection portion 48 between the third pipe 43 and the hot water tank 40 side. twenty one. In other words, in the fourth diagram a, the vertical portion 42b of the second pipe disposed directly below the third pipe 43 and the water supply port 21 are moved in the direction of the hot water tank 40. The fourth pipe 44 is connected to the hot water tank 40 side at a position closer to the "connection portion 48 between the second pipe 42 and the third pipe 43", specifically, the bent portion 42c connected to the second pipe 42. Then, among the horizontal portion 42a of the second pipe, the connection between the third pipe 43 and the third pipe 43 A fifth valve 55 is provided in a portion between the portion 48" and the curved portion 42c. The opening and closing state of each of the electromagnetic valves 52 to 55 of the beverage water supply device 5 in the respective operating states is the same as that shown in FIG. 6 except that the fifth valve 55 is closed during the sterilization and the hot water supply during the sterilization period. . In this way, the fifth valve 55 can function to "guide the hot water for drinking and the hot water for sterilization without being mixed", thereby simplifying the structure of the piping and making the guiding members 56, 57 unnecessary. In addition, when hot water is supplied, there is no need to interrupt the sterilization.

In the case where the structure of Fig. 8 is formed, the portion of the beverage water in the normal temperature state is not retained in the portion between the connection portion 48 of the second pipe 42 and the fifth valve 55 during the sterilization operation. The length is preferably shortened as much as possible. Alternatively, in the case where the length of the portion of the system must exist, the configuration of Fig. 4a or Fig. 4b of the guiding member is more suitable than the configuration of Fig. 8.

Next, the operation of the beverage water supply device 5 will be described. The operation other than the sterilization is the same as in the case of the second embodiment. However, since the guide member is not provided, the switch of the valve is executed only by the control of the solenoid valves 52 to 55.

When the user presses the sterilization button 23, the beverage water supply device 5 performs the following operations. The control substrate 81 opens the third valve 53 in a state where the second valve 52, the fourth valve 54, and the fifth valve 55 are closed, and causes the pump 60 to operate.

When the user presses the water supply button 22 for hot water supply during the sterilization period, the beverage water supply device 5 performs the following operations. Control base The plate 81 keeps the third valve 53 open, and keeps the fifth valve 55 closed, so that the second valve 52 and the fourth valve 54 are only opened for a certain period of time, while performing sterilization, while "storing in the upper portion of the hot water tank 40" The beverage water flows out of the water supply port 21 by a certain amount via the second pipe 42 by gravity, after which the second valve 52 and the fourth valve 54 are closed. Once the sterilization is completed, the control substrate 81 closes the third valve 53 and the fifth valve 55.

1‧‧‧Beverage water supply device

21‧‧‧Water supply port

30‧‧‧Sink

31‧‧‧ mouth

32‧‧‧ cold sink

33‧‧‧Baffle

34‧‧‧Float

35‧‧‧Air holes

36‧‧‧sterilization filter

37‧‧‧Paltier components

38‧‧‧Water level sensor

39‧‧‧Temperature Sensor

41‧‧‧First piping

42‧‧‧Second piping

43‧‧‧ Third piping

50‧‧‧Injection

51‧‧‧First valve

52‧‧‧Second valve

53‧‧‧ third valve

60‧‧‧ pump

Claims (6)

A beverage water supply device is a beverage water supply device including a cold water tank for storing beverage water and cooling means for cooling the beverage water stored in the cold water tank, and supplying the cooled beverage water from the water supply port, wherein: The utility model comprises: a replaceable water tank for supplying beverage water to the cold water tank; and a first pipe connected to the water tank and the cold water tank; and a first valve which is arranged in the first pipe and allows the beverage water to flow only a direction from the water tank toward the cold water tank; and a second pipe connecting the cold water tank and the water supply port; and a first valve provided at a connection portion between the water tank and the first pipe, and allowing the beverage water to flow only from the water tank a direction toward the cold water tank; and a third pipe connecting the first pipe and the second pipe; and a second valve disposed between the connection portion between the second pipe and the third pipe and the water supply port And a third valve, which is disposed in the third pipe; and a heating means for heating the beverage water in the cold water tank; and a control means for performing the following control: cooling is performed when the sterilization operation Means stop, add Operation means, closing the second valve and opening the third valve. The beverage water supply device according to the first aspect of the invention, further comprising: a pump provided between a connection portion between the second pipe and the third pipe and a position between the second water pipe and the cold water tank; The control means activates the pump during the sterilization operation, and circulates the beverage water between the cold water tank, the portion between the end portion of the second water pipe on the cold water tank side and the second valve, the third pipe, and the first Piping. The beverage supply device according to claim 1 or 2, further comprising: a hot water tank for storing the beverage water; and a water tank for the hot water tank for supplying the drinking water to the hot water tank; a water tank heating means for heating the beverage water stored in the hot water tank; and a fourth pipe connecting the second pipe and the hot water tank; and a fifth pipe connecting the water tank for the hot water tank a hot water tank; and a guiding member that guides to prevent water flow from the cold water tank side of the second pipe toward the third pipe and the water flow from the fourth pipe toward the water supply port side of the second pipe, and has both The second valve, the third valve, the fourth valve provided in the fourth pipe, and the fifth valve provided in the second pipe function. The control means performs the following control: when the sterilization operation is performed, the fourth valve is closed and the fifth valve is opened, and when the hot water is supplied from the supply port during the sterilization operation, the third valve and the fifth valve are temporarily closed, and then the second valve is opened. The valve and the fourth valve perform the supply of the hot water, and once the water supply is completed, the second valve and the fourth valve are closed, and the third valve and the fifth valve are again opened to perform the sterilization again. The beverage water supply device according to claim 1 or 2, further comprising: a hot water tank for storing the beverage water; and a water tank for the hot water tank for supplying the drinking water to the hot water tank; a hot water tank heating means for heating the beverage water stored in the hot water tank; and a fourth pipe connecting the second pipe and the hot water tank; and a fifth pipe connecting the water tank for the hot water tank And a hot water tank; and a fourth valve, which is disposed in the fourth pipe; and a fifth valve, which is disposed in the second pipe; and a guiding member that guides to avoid the cold water tank from the second pipe The water flow toward the third pipe is mixed with the water flow from the fourth pipe toward the water supply port side of the second pipe, and the control means performs the following control: the third valve and the fifth valve are opened during the sterilization operation, and the second valve is closed The fourth valve, when the hot water is supplied from the supply port during the sterilization operation, opens the second valve and the fourth valve to perform the supply of the hot water, and closes the second valve and the fourth valve once the water supply is completed. The beverage water supply device according to claim 1 or 2, further comprising: a hot water tank for storing the beverage water; and a water tank for the hot water tank for supplying the drinking water to the hot water tank; a hot water tank heating means for heating the beverage water stored in the hot water tank; and a fourth pipe connecting the second pipe and the hot water tank; and a fifth pipe connecting the water tank for the hot water tank And a hot water tank; and a fourth valve disposed in the fourth pipe; and a fifth valve disposed in the second pipe; and a fourth pipe connecting the second pipe and the third pipe Department The second valve is connected to the second pipe, and the second valve is disposed at a position between the second pipe and the fourth pipe and the water supply port, and the fifth valve is provided at the second valve. The control device performs the following control at a position between the connection portion between the second pipe and the third pipe and the connection portion with the fourth pipe: the third valve is opened during the sterilization operation, and the second valve and the fourth valve are closed. The fifth valve opens the second valve and the fourth valve to supply the hot water when the hot water is supplied from the supply port during the sterilization operation, and closes the second valve and the fourth valve once the water supply is completed. The beverage water supply device according to claim 1, comprising: a Peltier element disposed in the cold water tank; and a reversal means for reversing the polarity of the Peltier element, wherein the control means is in a general period. The post element is actuated as a cooling means, and is actuated as a heating means during the sterilization operation.