KR100227867B1 - Hot water supplied apparatus for beverage vending machine - Google Patents

Abstract

The present invention relates to a hot water supply device for a beverage vending machine by directly installing an electric heater in the water supply pipe so that only a required amount of water can be rapidly heated and sold when the beverage is sold. The main body 20 forms an appearance of the beverage vending machine and has a cup outlet on the front thereof. ), A mixer 27 for receiving and mixing raw materials and water so as to supply a drink to a cup located at the cup outlet of the main body 20, and a water supply located at the bottom of the main body so that water is supplied to the mixer 27. A water supply pump 23 for pumping and supplying water from the tank 22, an electric heater 26 installed in the inlet side water supply line of the mixer 27 so as to directly heat the water supplied to the mixer 27, The contact area between the electric heater 26 and the water supplied to the mixer 27 is increased, so that the water supplied to the mixer 27 is rapidly heated, and is formed of a spiral tube made of metal, and a water supply pipe 41 embedded in the electric heater 26. ), Water pipe The electric water heater 26 is energized when the water supply valve 25 installed at the inlet side of the water supply pipe 41 and the sales signal are inputted to intercept the water supplied to the mixer 27 through the 41. The water supply valve 25 opens and outputs a control signal so that hot water is supplied to the mixer 27, and includes a control unit 100 electrically connected to the electric heater 26 and the water supply valve 25.

Description

Hot water supply device of beverage vending machine

The present invention relates to a hot water supply device for a beverage vending machine, and more particularly, to a hot water supply device for a beverage vending machine that can be installed by supplying an electric heater directly to the water supply pipe to rapidly supply only the amount of water required for beverage sales.

Generally, beverage vending machines provide hot / cold beverages with various menus to satisfy various preferences of consumers. That is, the beverage vending machine is equipped with a cold water supply device and a hot water supply device, when a consumer selects a particular beverage, the powder and additives as raw materials are dispensed, mixed with water, and then supplied to the consumer in a cup.

1 is a view showing the hot water supply device of the conventional beverage vending machine, the operation of each component according to the order of hot water supply is as follows.

First, the water supply tank (2) located at the lower end of the beverage vending machine (1), the water pump (3) for pumping the water contained in the water supply tank (2) to the upper portion, and the water pumped from the water supply pump (3) The hot water tank 5 which is purified through (4) and then freshly heated is provided.

In addition, the hot water tank (5) is provided with a water level sensor (6) and an electric heater (7), if water shortage is detected from the water level sensor (6) by driving the water supply pump (3) is supplied with water, electric heater (7) ) Is heated to maintain a constant water temperature (90 ℃-95 ℃) of the fresh water in the hot water tank (5).

The hot water is supplied to the mixer 9 according to the operation of the water supply valve 8, mixed with the beverage powder and the additive in the mixer 9, and placed in the cup 10. Reference numeral 11 not shown shows a raw material supply pipe.

However, the following problem occurs in the hot water supply device of the conventional beverage vending machine.

First, as the bulky hot water tank is installed, the utilization rate of the internal space of the beverage vending machine is reduced, and it is difficult to install other parts.

In addition, there is a need for a support structure and a reinforcing material to support the fresh water hot tub, which is a problem of additional costs in mass production.

In addition, the hot water freshened in the hot water tank is easily evaporated to make the inside of the beverage vending machine humid, thereby reducing the electrical safety.

In addition, the power consumption is increased by frequently energizing the electric heater to maintain the water in the hot water tank at a constant temperature at all times.

The present invention has been made in order to solve the above problems, the purpose is to install the electric heater directly in the water supply pipe to supply only the required amount of water for rapid sales of beverage sales by eliminating the hot water tank support structure is unnecessary and the internal space utilization rate is high The present invention provides a hot water supply device for a beverage vending machine that is not only electrically safe but also reduces power consumption.

1 is a schematic diagram of a hot water supply device of a conventional beverage vending machine.

2 is a schematic diagram of a hot water supply device for a beverage vending machine according to the present invention.

3 is a cross-sectional view showing the electric heater of the hot water supply apparatus according to the present invention.

4 is a control block diagram for controlling a hot water supply device according to the present invention.

5 is a control flow diagram showing a control flow of the hot water supply apparatus according to the present invention.

* Explanation of symbols for main parts of the drawings

22: water supply tank 23: water supply pump

25: auxiliary tank 25a, 25b: water supply valve

26a, 26b: electric heater 27: mixer

35a: upper limit switch 35b: lower limit switch

41: water supply pipe 42: heating wire

44: Case 45: Thermo sensor

46: temperature sensor

The present invention for achieving the technical problem, after forming the appearance of the beverage vending machine and mixed with the raw material and water so as to supply a beverage to the main body having a cup outlet on the front, the cup located in the cup outlet of the main body A beverage vending machine having a mixer for supplying and a water pump for supplying water from a water supply tank located on the bottom of the main body so that water is supplied to the mixer, wherein the beverage is directly heated to supply the water to the mixer. A water supply pipe embedded in the electric heater and formed of a metallic spiral tube so that the contact area between the electric heater installed in the inlet side water supply line of the mixer and the water supplied to the mixer is increased, and the water supplied to the mixer is rapidly heated; Inlet side of the water supply pipe to control the water supplied to the mixer through the water supply pipe And a control unit connected to the electric heater and the water supply valve, wherein the installed water supply valve and the selling signal are input, the electric heater is energized and the water supply valve opens to output a control signal to supply hot water to the mixer. It is characterized by.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a view showing a hot water supply device according to the present invention, the configuration of which forms the appearance of the beverage vending machine, the main body 20 having a cup outlet on the front and the water supply tank 22 provided on the bottom of the main body 20 And a water supply pump 23 for pumping the water contained in the water supply tank 22 to be transferred to the upper portion, an auxiliary tank 25 for fresh water pumped from the water supply pump 23, and a supply from the auxiliary tank 25. Water heater 24 for rectifying the water to be used, water heaters 25a and 25b for controlling the water rectified in the water purifier 24, electric heater for making the water supplied through the water supply valves 25a and 25b into hot water (26a, 26b), a mixer (27) for mixing hot water warmed by the electric heaters (26a, 26b), powder as a raw material, and a sweetener, and a cup holder (29) for holding a beverage made by mixing in a cup (28). And so on.

Each function of the above-mentioned component is explained as follows.

First, the water supply from the beverage vending machine is made by a water supply tank and a direct connection type. In other words, the water supply tank is installed at the bottom of the vending machine and pumped into the water supply pump. have.

In the present invention, the water supply method by the water supply pump 23 is taken as an example. And the water supply tank 22 is provided with a water level sensor 32 for detecting the exhaustion of water.

In addition, the water pumped from the water supply tank 22 by the water supply pump 23 is immersed in the auxiliary tank 25, the auxiliary tank 25 is reduced in size by one fifth compared to the conventional hot water tank (5). Can increase the internal space utilization rate of the beverage vending machine 20.

In addition, the upper limit switch (35a) and the lower limit switch (35b) is provided to detect the water level so that a certain amount of water is always fresh water, the control unit 100 receives a signal for controlling the feed water pump (23).

In addition, the water supplied from the auxiliary tank 25 is purified by the suction action of activated carbon while passing through the water purifier 24, and the purified water is divided by two flow paths and is separated by the respective water supply valves 25a and 25b. The flow is controlled.

In addition, the outlet side of each of the water supply valves (25a, 25b) is provided with electric heaters (26a, 26b) for making hot water, so only one of them will be described with reference to the attached FIG.

First, the heating wire 42 is wound around the water supply pipe 41 made of metal having good heat resistance and thermal conductivity, and the outside is wrapped in a case 44 having low thermal conductivity (for example, die casting casting, etc.) while reducing the external dissipation of heat. To reduce the risk of burns caused by physical contact. At this time, the water supply pipe 41 is installed is processed in a spiral shape to reduce the flow rate and collect a lot of heat. And as a safety device is further provided with an overheat prevention thermo sensor 45 and the temperature sensor 46. Reference numeral 33 is a hot wire terminal.

In addition, a mixer 27 is provided in which hot water warmed by the electric heaters 26a and 26b, a powder and a sweetener are mixed, and a beverage made by mixing is automatically supplied by a cup dispenser (not shown). Provided to the consumer in 28. Reference numeral 21 in FIG. 2 is a raw material supply pipe.

4 is a control block diagram for controlling a hot water supply device according to the present invention, which will be described with reference to the following. First, the water supply tank 22 is provided with a water level sensor 32 for detecting water exhaustion. When water exhaustion is detected from the water level sensor 32, the control unit 100 outputs a stop signal to stop selling beverages.

In addition, an upper limit switch 35a and a lower limit switch 35b for detecting the water level of the auxiliary tank 25 are provided. When the lower limit switch 35b is input with an ON signal, the controller 100 supplies the pump motor driver 50 to the pump motor driver 50. When the insufficient water is supplied by the water supply pump 23 by outputting the control signal and the ON signal is input from the upper limit switch 35a, the controller 100 determines that the water is full and outputs the control signal to the water supply pump driver 50. The operation of the feed water pump 23 is stopped. That is, the water level of the auxiliary tank 25 is always maintained by the height difference between the upper limit switch 35a and the lower limit switch 35b.

In addition, the control unit 100 selectively controls the first water supply valve 25a and the second water supply valve 25b alternately to maintain a constant temperature of the hot water supplied to the mixing cylinder, and the first water supply valve 25a. When is selected, the first electric heater 26a is operated, and when the second water feed valve 25b is selected, the second electric heater 26b is operated. Therefore, hot water supply can be made smoothly. In addition, temperature sensing sensors 46a and 46b for detecting operating states of the electric heaters 26a and 26b and thermoelectric sensors 45a and 45b for preventing overheating of the electric heaters 26a and 26b are provided. do. At this time, if the heat generation temperature of the electric heaters 26a and b is detected to be lower than or equal to a predetermined temperature from the temperature sensors 46a and 46b, the controller 100 stops selling the beverage. In addition, when the temperature of the electric heaters 25a and b rises, if the thermo sensor 45 connected to the power supply line is operated to cut off the energizing current of the electric heater 26, the control unit 100 stops selling the beverage. Let's do it.

5 shows the control flow of the hot water supply device according to the above-described components.

In general, a beverage vending machine is designed to provide a beverage when a consumer inputs a predetermined amount and selects a menu of a beverage corresponding to the amount. Therefore, the sales wait state is maintained in the state where the amount of money is not input.

When the coin is put in the selling wait state, the coin machine sends the input amount to the control unit 100 by the command of the control unit 100. At this time, the control unit 100 can determine whether the selling condition is satisfied. Therefore, the controller 100 determines whether the command of the sales signal is applied (S101). If the sales signal is not applied, the sales wait. If the sales signal is applied, it is determined whether the first water supply valve 25a is selected ( S102).

If it is determined in step S102 that the first water supply valve 25a is selected, the control unit 100 applies a power to the first water supply valve 25a to open and close the valve to perform a water supply operation, and at the same time, the first electric heater. By turning on (26a) to make hot water (S103).

Thereafter, the controller counts the energization time of the first water supply valve 25a and compares it with a preset counting time to determine the completion of water supply (S105). If the determination condition is not satisfied in the determination step (S105), the hot water is supplied for the remaining time, and if the determination condition is satisfied, the hot water supply is completed by turning off the power supply of the water supply valve 25a and the electric heater 26a (S106). .

If the first water feed valve 25a is not selected in the determination step S102, the controller 100 determines that the second water feed valve 25b is selected, and then turns on the second electric heater 26b (S104). The same process described above is performed sequentially.

And the water supply valve selection determination step (S102) is to drive the water supply valve (25a, b) alternately, which is to carry out the stable operation of the electric heater to smoothly supply hot water.

The present invention described above is not limited to the embodiment, and can be preferably applied to a beverage vending machine having a water supply capability within a range not departing from the gist.

As described above, the hot water supply device of the beverage vending machine according to the present invention is installed directly by supplying an electric heater to the water supply pipe to supply only the required amount of water for rapid sales of beverages, thereby drastically reducing the volume of the hot water supply device for producing hot water. There is an effect that can increase the internal space utilization of the vending machine and improve the assembly of other parts. In addition, the support structure and reinforcing material for supporting the conventional hot water tank can be deleted, so that economic effects can be obtained in mass production. In addition, it is possible to keep the inside of the beverage vending machine dry, so that it is not only electrically safe but also reduces power consumption.

Claims (3)

Mixer 27 for supplying the raw material and water to mix the main body 20 to form the appearance of the beverage vending machine having a cup outlet on the front, and to supply a drink to the cup located in the cup outlet of the main body 20 And, in the beverage vending machine having a water supply pump 23 for supplying water from the water supply tank 22 located on the bottom surface of the main body so that water is supplied to the mixer 27, it is supplied to the mixer 27 The contact area between the electric heater 26 installed in the inlet-side water supply line of the mixer 27 and the water supplied to the electric heater 26 and the mixer 27 is increased so that the water can be directly heated. The water supplied to the 27 is formed of a spiral tube made of metal so as to be rapidly heated, and is supplied to the mixer 27 through the water supply pipe 41 and the water supply pipe 41 embedded in the electric heater 26. The water supply pipe to control the water ( 41, when the water supply valve 25 installed on the inlet side of the inlet and the selling signal are input, the electric heater 26 is energized and the water supply valve 25 is opened so that hot water is supplied to the mixer 27. Outputs the hot water supply device of the beverage vending machine, characterized in that it comprises a control unit (100) electrically connected to the electric heater (26) and the water supply valve (25). According to claim 1, wherein the temperature sensor 46 is electrically connected to the control unit 100 to detect the heating temperature of the electric heater 26, and when the electric heater 26 is overheated Further provided with a thermo sensor 45 connected to the power supply line to cut off the energizing current of the heater 26, the electric heater (with the temperature sensor 46 and the thermo sensor 45 embedded therein) 26) hot water supply device of a beverage vending machine, characterized in that the die casting. The water supply valve (25) and the water supply pump (23) according to claim 1, wherein a predetermined amount of water is always infiltrated therein so that the water supplied to the mixer (27) is smoothly supplied through the water supply valve (25). The water supply pump 23 by the control unit 100 detects the water level of the auxiliary tank 25 and the auxiliary tank 25 installed between the auxiliary tank 25 so that a predetermined amount of water is always in the auxiliary tank 25. The hot water supply device of the beverage vending machine, characterized in that it further comprises a water level sensor (35a, b) that outputs a signal to be driven and electrically connected to the control unit (100).

Images