KR100883803B1 - The Water Supply Apparatus Of The Small-Sized Automatic Vending Machine - Google Patents

Abstract

The present invention relates to a cold water supply device for a small vending machine, and more specifically, is coupled to the upper part of the vending machine and is supplied with room temperature water by any one of a water tank or an external water supply pipe, and a part of the room temperature water is made into cold water. It is related with the cold water supply apparatus of the small vending machine which has a function which can supply to the side.

In the cold water supply apparatus of the present invention, the small vending machine is connected to the small vending machine, the cold water supply device for supplying cold water, the appearance case; A cold water tank provided inside the outer case and storing water supplied from the outside to supply cold water and room temperature water to the small vending machine; A condenser provided on one side of the outer case and a compressor including a compressor, an expansion valve, and an evaporator provided inside the outer case; A water supply pipe in which water stored in the cold water tank is supplied to the small vending machine; And a control unit controlling the amount of water supplied through the water supply pipe and controlling the operation of the cooling device.

Vending Machine, Cold Water Supply, Sensor

Description

The Water Supply Apparatus Of The Small-Sized Automatic Vending Machine}

1 is a partial cross-sectional view showing a cold water supply device of the conventional small vending machine;

2 is an external perspective view of a cold water supply device of a small vending machine according to an embodiment of the present invention;

3 is an internal configuration of a cold water supply apparatus of a small vending machine according to an embodiment of the present invention;

4 is an internal configuration diagram showing another side of FIG. 3;

5 is an exploded perspective view of a cold water supply apparatus according to an embodiment of the present invention;

6 is a perspective view of the combination of the cold water tank and the water supply pipe according to an embodiment of the present invention;

7 is a detailed view of the combination of the cold water tank and the evaporator according to an embodiment of the present invention;

8 is a cut perspective view of a cold water tank according to an embodiment of the present invention; And

9 is a detailed view of a cold water main supply pipe according to an embodiment of the present invention.

※ Explanation of symbols for main parts of drawing

100: cold water supply unit 110: appearance case

111: upper case 112: lower case

120: cold water tank 120a: upper tank

120b: Lower jaw 121: Upper jaw cover

123: room temperature discharge pipe hole 124: residual cold water outlet

125: separator 126: pump insertion hole

127: temperature sensor insertion hole 128: cold water supply hole

130: display unit 131: operation button

140: PCB substrate 150: auxiliary power connector

160: beret device 170: water level sensor

180: circulation pump 190: temperature sensor

220: cold water main supply pipe 230a: room temperature water discharge pipe

230b: residual cold water discharge pipe 230: room temperature water supply pipe

240: hot water supply pipe 250: bidirectional connector

260: cold-temperature switching valve 330: evaporator

The present invention relates to a cold water supply device for a small vending machine, and more specifically, is coupled to the upper part of the vending machine and is supplied with room temperature water by any one of a water tank or an external water supply pipe, and a part of the room temperature water is made into cold water. It is related with the cold water supply apparatus of the small vending machine which has a function which can supply to the side.

In general, a small vending machine functions to provide a coffee-based hot beverage in which coffee powder, prim powder and sugar powder are mixed with hot water, or a tea-based hot beverage in which dry powder is mixed with hot water.

The small vending machine combined with the cold water supply unit with a refrigeration system that makes the water supplied to the small vending machine low temperature to supplement the function of the small vending machine that provides only the hot beverage is provided in hot weather. It is becoming.

Small vending machines combined with these cold water supply units make the water supply cold through a refrigeration system, which is usually mixed with a drink made from slush or ice cubes, or made from cold water and then mixed with a beverage. Will be provided.

For example, as a prior art for a small vending machine equipped with the cold water supply device, Korean Utility Model Model No. 0225719 proposes a cold water supply device for a cup beverage vending machine, which uses a cold water supply device at the bottom of the small vending machine. Equipped.

The cold water supply device is a cold water supply unit body is provided in the lower portion of the cup beverage vending machine, a water reservoir for storing water provided in the lower portion of the cold water supply unit body, water provided in the upper portion of the water reservoir to pump the water of the water reservoir A pump, a cold water tank for storing the water pumped by the water pump and maintaining it at a low temperature, and the first and second valves provided above the cold water tank to control the flow of cold water, and the first and second valves are provided. Include a water pipe to guide the flow of the.

Such a conventional small vending machine has a problem in that the position of the vending machine, which is a position where water is supplied, is higher than that of the cold water tank, so that water can flow back to the side of the cold water tank, and because the cold water supply device is provided inside the vending machine, There was also a problem that the volume of the large, there was also an inconvenience that the user must periodically fill the purified cold water.

Therefore, in order to solve this problem, the present inventors proposed a cold water supply device for a small vending machine in Korean Utility Model Model No. 0420056.

In the accompanying drawings, Figure 1 is a partial cross-sectional view showing a conventional cold water supply device of the small vending machine, the storage tank 10 receives water from the outside, and is provided in the interior of the storage tank 10, the inner space of the storage tank 10 Partition plate 20 for partitioning the upper reservoir 11 and the lower reservoir 12, a cooling unit 30 for cooling the lower reservoir 12 to low temperature, and the cooling unit 30 and the external automatic It comprises a first water supply pipe 40 for connecting the cold water supply line of the vending machine, and the second water supply pipe 50 for connecting the upper reservoir and the normal temperature water supply line of the vending machine outside.

Here, the water supplied to the reservoir 10 may be supplied through the water tank 60, or may be supplied from an external water supply pipe, and the cooling unit 30 may receive a low temperature refrigerant from the expansion valve 12 to store the lower reservoir 12. It includes a low temperature heat exchanger formed to surround the). Therefore, the low temperature heat exchanger exchanges heat with the water in the lower reservoir 12, whereby the water in the lower reservoir 12 is cooled, and the cooled water is supplied to the vending machine.

However, the conventional cold water supply device of the small vending machine has the following problems.

First, the water in the lower reservoir does not circulate and freezes when the temperature is 0 ° C. or less, so that the temperature of the water cannot be lowered further, and there is a disadvantage in that the cold water supply device needs to lower the temperature of the water as much as possible.

Second, it was a structure to cool the water by winding the evaporator outside the reservoir provided inside the cold water supply device, but the cooling efficiency of the evaporator did not directly touch the water inside the reservoir, which lowered the cooling efficiency or caused condensation on the outer surface of the reservoir. When the cooling device is not operating, there is a problem in that the dew condensation melts and leaks outside.

Third, the first water supply pipe is provided with a solenoid valve (opening and closing valve) for opening and closing the first water supply pipe in response to an input signal from the vending machine, and after the required cold water is supplied, the solenoid valve is locked, thereby remaining water in the water supply pipe. Will remain.

This residual amount of water rises with time, and is mixed with the water cooled by the cold water supply at the next input signal, so that the temperature of the cold water supplied for the first time through the vending machine increases relatively. There was a problem that does not properly exhibit the function of the cold water supply device to provide a cold drink.

Fourth, the water supply to the bucket of the vending machine is made of room temperature water stored in the upper reservoir, there is a possibility that the water in the reservoir may decay when the cold water supply device is not used for a long time, because there is no movement This decayed water has a problem that can be supplied through the vending machine.

Fifth, the small vending machine equipped with the conventional cold water supply device removes the hot water supply hose inside the vending machine to supply cold water, connects the cold water supply hose of the cold water supply device, and also supplies hot water. There was a cumbersome issue that had to be reversed.

Sixth, when the cold water supply device of the conventional small vending machine adjusts the water supply amount of the cold water supply device, the water supply control is performed by adjusting the solenoid valve connecting the vending machine and the cold water supply device, but in this case, the water supply control of the vending machine When the water supply of the cold water supply device is controlled by receiving a signal and the water supply adjusting screw of the cold water supply device is opened a lot, there is a problem in that the water supply of the cold water supply device is controlled by the water supply control of the vending machine itself.

Seventh, since the conventional cold water supply device of the small vending machine does not have a device for measuring the amount of water in the reservoir, when there is no water in the reservoir there is a problem that only the beverage material is discharged without water supply when the vending machine is operated, In addition, when the device for adjusting the water level in the reservoir (bure) is broken or the combination thereof is wrong, there is a problem that the water level is not controlled because the water overflows to the outside of the reservoir.

The present invention for solving the above problems is, first, by having a circulation pump capable of circulating the water in the cold water tank of the cold water supply device, even if the water stored in the cold water tank is lowered below 0 ℃ It is an object of the present invention to provide a cold water supply device for a small vending machine having a structure that prevents water from freezing and circulates so that residual water does not remain in a water supply pipe supplying water to a vending machine.

Second, by cooling the water by winding the evaporator inside the cold water tank of the cold water supply device, the cold water supply device of a small vending machine having a structure that can remove condensation and the cold air of the evaporator is directly transferred to the water to increase the cooling efficiency. The purpose is to provide.

Third, by providing a ball valve in the discharge pipe portion of the cold water supply unit of the cold water supply device, the ball valve is closed to prevent the cold water outflow of the cold water supply when the cold water supply device is used, and the ball valve is opened when the cold water supply device is not used. It is an object of the present invention to provide a cold water supply device for a small vending machine having a structure that allows the supply of water to a bucket of a vending machine at the same time.

Fourthly, by providing a cold / hot water supply automatic conversion button in the cold water supply device, it is an object to provide a cold water supply device of a small vending machine having a structure that can automatically control the water supply amount in the cold water supply itself.

Fifth, by providing a water level sensor that can measure the amount of water in the cold water tank provided in the cold water supply apparatus, provides a cold water supply device of a small vending machine having a structure that can automatically adjust the amount of water in the cold water tank. Its purpose is to.

Cold water supply apparatus of the present invention, a small vending machine for achieving the above object, the cold water supply device for supplying cold water by connecting to the small vending machine, the appearance case; A cold water tank provided inside the outer case and storing water supplied from the outside to supply cold water and room temperature water to the small vending machine; A condenser provided on one side of the outer case and a compressor including a compressor, an expansion valve, and an evaporator provided inside the outer case; A water supply pipe in which water stored in the cold water tank is supplied to the small vending machine; And a control unit controlling the amount of water supplied through the water supply pipe and controlling the operation of the cooling device.

Preferably, the cold water tank is composed of a bottom tank which is supplied with water from the outside and the cold water is made and stored integrally formed in the upper portion of the bottom tank and the water is supplied from the outside to maintain / store the room temperature water; Separation plate is provided on the inner boundary surface formed by the lower tank and the upper tank, the evaporator is provided on the inner bottom surface of the lower tank.

More preferably, the cold water tank further includes a water level sensor for measuring the level of water supplied into the cold water tank at the upper end of the upper tank, and transmitting the measured value to the controller.

Further, more preferably, the cold water tank has a pump insertion hole formed in one side of the lower tank, and further includes a circulation pump for circulating cold water in the pump insertion hole.

More preferably, the cold water tank has a residual cold water outlet formed through the lower end of the lower tank, and the residual cold water discharge pipe through which the residual cold water is discharged to the vending machine is coupled to the residual cold water outlet. It is further provided with a cold / temperature switching valve for controlling the opening and closing of the discharge pipe.

On the other hand, preferably, the control unit is composed of a PCB substrate for controlling the cold water supply apparatus by the operation of the display unit and the operation button provided on the front of the exterior case; The operation button further includes a cold and hot water automatic conversion button for switching between cold water and hot water supplied to the small vending machine, and the cold and hot water switching is automatically performed by a sequence previously input to the PCB substrate by the selection of the automatic cold and hot water conversion button. Adjusted.

More preferably, the operation button further comprises a temperature setting button for setting and adjusting the temperature of the water cooled by the cold water supply device, the cold water by the control operation of the control unit according to the operation of the temperature setting button Has the structure to control the temperature of.

Further, more preferably, the operation button further comprises a cold water supply amount selection button for adjusting the supply amount of the cold water supplied to the small vending machine, by the control operation of the control unit according to the operation of the cold water supply amount selection button It has a structure that can adjust the cold water supply amount.

In addition, preferably, the water supply pipe is connected to the residual cold water discharge pipe through which the residual cold water is discharged through the lower portion of the cold water tank and the normal temperature water discharge pipe through which the normal temperature water is discharged through the upper portion of the cold water tank to supply room temperature water to the small vending machine. And a cold water main supply pipe connected to a solenoid valve provided on one side of the lower portion of the cold water tank to supply cold water to the small vending machine.

More preferably, the cold water main supply pipe is made of a flexible silicone material.

In addition, more preferably, the cold water main supply pipe is further coupled to one end of the two-way connection at the same time the hot water supply pipe of the small vending machine side to one side of the two-way connection pipe to form a cold and hot water supply pipe, the cold and hot water supply pipe Cold water and hot water are selected through the supply structure.

On the other hand, preferably, the cold water supply device further includes an auxiliary power supply terminal on one side of the outer case.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Of the accompanying drawings, Figure 2 is an external perspective view of a cold water supply apparatus of a small vending machine according to an embodiment of the present invention, Figure 3 is an internal configuration of the cold water supply apparatus of a small vending machine according to an embodiment of the present invention, Figure 4 is an internal configuration showing another side of Figure 3, Figure 5 is an exploded perspective view of the cold water supply apparatus according to an embodiment of the present invention, Figure 6 is a combined perspective view of the cold water tank and the water supply pipe according to an embodiment of the present invention, 7 is a detailed view of the combination of the cold water tank and the evaporator according to an embodiment of the present invention, Figure 8 is a cut perspective view of the cold water tank according to an embodiment of the present invention, and Figure 9 is a cold water main supply pipe according to an embodiment of the present invention Detailed view.

Cold water supply device 100 according to the present invention is coupled to the upper part of the vending machine (not shown) is supplied to the room temperature water by any one of the water tank or an external water supply pipe, a portion of the water is made of cold water vending machine (not shown) It is a device having a function that can supply to the side. Hereinafter, a description of the vending machine that can blur the gist of the present invention will be omitted, and a cold water supply apparatus according to an embodiment of the present invention will be described in detail.

Referring to the drawings, the cold water supply device 100 of the small vending machine according to the present invention comprises an exterior case 110, a cold water tank 120, a cooling device, a water supply pipe, and a control unit.

Exterior case (110)

2 to 4, the exterior case 110 includes an upper case 111 and a lower case 112, and a cold water tank 120 and a cooling device on the bottom surface of the lower case 112. Etc.

In addition, the bottom surface of the lower case 112 is preferably provided with a height adjustment screw (not shown), it is possible to horizontally adjust the cold water supply device 100 when placed on the top of the small vending machine.

Meanwhile, a display unit 130 including an operation button 131 is installed on the front surface of the exterior case 110, and the PCB board is provided inside the exterior case 110 by manipulation of the operation button 131. The cold water supply device 100 operates by a sequence previously input to the 140.

In particular, the operation button 131 is configured to include a cold / hot water automatic conversion button, a temperature setting button, and a cold water supply amount selection button.

Here, by operating the automatic hot and cold water conversion button, the exchange of the cold water supplied through the cold water supply device 100 and the hot water supplied from the vending machine itself can be made automatically. For example, when the cold water conversion button of the cold and hot water automatic conversion button is pressed for about 5 seconds, the cold water is automatically supplied, and when the hot water conversion button is pressed for about 5 seconds, the hot water is automatically supplied. The conversion of the cold and hot water is performed by a preset sequence on the PCB substrate 140.

On the other hand, one side of the exterior case 110 is further provided with an auxiliary power connection terminal 150, which is automatic when the outlet to connect the power supply when the cold water supply device 100 of the present invention is installed in the automatic vending machine The power supply of the vending machine is connected to the auxiliary power connection terminal 150, and the power supply of the cold water supply device 100 can be reconnected to the terminal to which the power of the existing vending machine is connected. Convenience of the prize is promoted.

-Cold water tank (120)

5 to 8, the cold water tank 120 is provided in the interior case 110, the water supplied from the outside is stored to supply the cold water and room temperature water to the small vending machine side, This is the lower tank 120b, which is supplied with water from the outside and made of cold water, and is integrally formed on the upper portion of the lower tank 120b, and the upper tank 120a, which is supplied with water from the outside and maintained at room temperature. It is composed.

That is, the upper tank (120a) and the lower tank (120b) is integrally formed, the bottled water bottle coupling sphere (121a) so that the bottled water (not shown) is coupled to the upper end of the upper tank (120a) so that water can be supplied Is formed through, and the upper side is formed with a through-hole 122 so that the external water supply line 200 is connected to the water supply.

And, the beret device 160 is coupled to one end of the external water supply line 200 is inserted into the through hole 122. The bubbling device 160 controls the water level of the water supplied to the cold water tank 120, and functions to control the water supply so that the water does not overflow to the outside of the cold water tank 120.

Therefore, the water supply system varies depending on the location where the cold water supply device 100 of the present invention is installed, and an external water supply line connected to the upper one side with a bottle of water (not shown) coupled to the upper end of the cold water tank 120 ( Water can also be supplied through 200).

On the other hand, the upper tank cover 121 coupled to the upper end of the upper tank (120a) is provided with a water level sensor 170, to measure the water level of the water supplied to the cold water tank 120, and the measured value control unit Signal to the side.

This is because when the water is dropped into the cold water tank 120 is not supplied to the vending machine side, only the material of the beverage is discharged, and also the beret device 160 provided on the upper portion of the upper tank (120a) In case of failure or incorrect coupling, the problem of overflowing water will be solved. Therefore, when the above problems occur, the external warning sound is generated to stop the operation of the cold water supply device.

On the other hand, the bottom of the other side of the upper tank (120a) is a room temperature water discharge pipe hole 123 for coupling the room temperature water discharge pipe (230a) for supplying room temperature water to the vending machine side is formed through. The room temperature water discharge pipe 230a is connected to the residual cold water discharge pipe 230b coupled to the residual cold water discharge port 124 to be described below to form a room temperature water supply pipe 230 for supplying the hot water and the residual cold water to the vending machine.

Inside the cold water tank 120, the separation plate 125 for separating the upper and lower portions is coupled to the inner boundary surface formed by the lower tank 120b and the upper tank 120a. The separating plate 125 serves to separate the cold water made in the lower tank 120b and the room temperature water supplied to the upper tank 120a.

The lower tank 120b includes an evaporator 330 among the components of the cooling device on the inner bottom surface. Conventionally, in order to cool the water stored in the lower tank 120b, the lower tank 120b is made of a material having good heat transfer, and the evaporator 330 is wound around the outer side of the lower tank 120b. 330 and the bottom tank 120b is a structure that cools the water in the bottom tank 120b by heat transfer, so the cold air of the evaporator 330 does not directly contact the water in the bottom tank 120b, thereby decreasing cooling efficiency. Alternatively, when condensation occurs on the outer surface of the lower tank 120b and the cold water supply device 100 is not operated, the condensation melts and leaks to the outside.

Therefore, the present inventors the cold water supply apparatus 100 directly installs the evaporator 330 on the bottom surface of the lower tank 120b to directly transfer the cool air of the evaporator 330 to water, thereby lowering the cooling efficiency and lowering the tank 120b. It is possible to prevent the occurrence of condensation on the outer surface.

A pump insertion hole 126 is formed in one side of the lower tank 120b, and a circulation pump 180 may be coupled to the pump insertion hole 126 to circulate cold water of the lower tank 120b.

That is, the circulation pump 180 circulates the water in the lower tank 120b to prevent the water from freezing when the temperature of the water becomes 0 ° C. or less due to the supercooling of the water. This is an essential component in consideration of the fact that the temperature of the water should be lowered as much as possible due to the characteristics of the cold water supply device 100.

In addition, one side of the lower tank (120b) is formed through the temperature sensor insertion hole 127 with the pump insertion hole 126 is coupled to the temperature sensor 190, and in the interior of the lower tank (120b) Cold water supply hole 128 that can supply the cold water is made to the vending machine is formed through.

The cold water supply hole 128 is provided with a solenoid valve 210 for controlling the supply of cold water and a cold water main supply pipe 220 coupled to the solenoid valve 210. In addition, the cold water main supply pipe 220 is preferably made of a silicone material having flexibility in order to prevent bending when connected to the vending machine side.

On the other hand, the remaining cold water outlet 124 is formed through the bottom of the other side of the lower tank (120b). The residual cold water discharge port 124 is coupled to the residual cold water discharge pipe 230b for discharging the residual cold water to the vending machine side, and the residual cold water discharge pipe 230b is a cold / hot switching valve for controlling opening and closing of the residual cold water discharge pipe 230b ( 260 combines. In addition, the residual cold water discharge pipe 230b is connected to the above-mentioned normal temperature water discharge pipe 230a to form a normal temperature water supply pipe 230.

Therefore, when the cold water supply device 100 is not used, residual cold water stored in the lower tank 120b may be discharged, which is controlled by the operation of the cold / hot switching valve 260. The remaining cold water of the lower tank 120b is discharged through the room temperature water supply pipe 230 together with the room temperature water supplied through the room temperature water discharge pipe 230a.

As a result, the cold water stored in the lower tank 120b may be prevented from decaying when the cold water supply device 100 is unused for a long period of time, and new cold water may be supplied to the vending machine when the cold water supply device 100 is restarted. It becomes possible.

On the other hand, the cold water tank 120 is preferably made of a plastic material, it is also possible to use a stainless steel material. This is because the evaporator 330 to be described below is provided inside the cold water tank 120 to perform heat exchange, so that only heat transfer materials are wound around the outer side of the conventional cold water tank 120 to perform heat exchange. This can eliminate the disadvantages of using.

-Chiller

Referring back to FIG. 3, the cooling device is a device for cooling the water supplied to the cold water tank 120, which is a compressor 310, a condenser 320, and an expansion valve (not shown) constituting a conventional refrigeration cycle. , And an evaporator 330.

The compressor 310 and the expansion valve are provided inside the exterior case 110, and the condenser 320 is provided on one side of the exterior case 110. In addition, the evaporator 330 is a heat exchanger and is arranged on the bottom surface of the above-described lower tank 120b such that the cooling is performed by directly contacting the water supplied to the cold water tank 120.

Therefore, since heat exchange is performed directly inside the lower tub 120b, not only the thermal efficiency is improved, but condensation may be prevented from occurring on the outer surface of the lower tub 120b.

-Water pipe

5, 6, and 9, the water supply pipe is composed of a cold water supply pipe 230, and a cold water main air supply pipe 220 is formed by interconnecting the residual cold water discharge pipe 230b and the normal temperature water discharge pipe 230a It is a tube that supplies the hot or cold water to the vending machine.

The residual cold water discharge pipe 230b is coupled to the residual cold water discharge port 124 formed through the lower end of the lower tank 120b, which is cold water remaining in the lower tank 120b when the cold water supply device 100 is not in use. It is for discharging and preventing corruption by discharging this residual cold water.

The residual cold water discharge pipe (230b) is opened and closed by the operation of the cold switch valve 260, and is connected to the "T" shaped pipe with the normal temperature water discharge pipe (230a) to form a room temperature water supply pipe (230).

The room temperature water discharge pipe 230a is coupled to the room temperature water discharge pipe hole 123 formed to penetrate the lower end of the upper tank 120a, thereby supplying the room temperature water to the vending machine.

That is, when the cold water supply device 100 by the operation of the cooling device is used, the cold / hot switching valve 260 is closed and the residual cold water discharge pipe 230b is closed. When not in use, the cold / hot switching valve 260 is opened and the remaining cold water is closed. The discharge pipe 230b is opened, and the residual cold water and the normal temperature water are supplied to the vending machine through the normal temperature water supply pipe 230 formed by the residual cold water discharge pipe 230b and the normal temperature water discharge pipe 230a.

A ball valve (not shown) is provided inside the intersection of the 'T' shaped pipe formed by the room temperature water discharge pipe 230a and the residual cold water discharge pipe 230b, and the lower tank 120b when the cold water supply device 100 is used. The ball valve is closed to prevent cold water from leaking, and when the cold water supply device 100 is not in use, the ball valve is opened so that the hot water stored in the upper tank 120a together with the remaining cold water in the lower tank 120b is directed to the vending machine. At the same time, it can be supplied.

On the other hand, the cold water main supply pipe 220 is coupled to one side of the lower tank (120b), the cold water cooled by the evaporator 330 provided in the lower tank (120b) is a tube is supplied to the vending machine side.

The cold water main supply pipe 220 is connected to the solenoid valve 210 and the opening and closing control is made, in particular the cold water main supply pipe 220 has flexibility to prevent the bending of the pipe during installation of the cold water supply device (100). It is made of silicone material.

And, one end of the cold water main supply pipe 220 is coupled to the two-way connection pipe 250, one side of the two-way connection pipe 250 is coupled to the hot water supply pipe 240 of the small vending machine side to provide a single supply path Cold water formed through the hot water or cold water supply device 100 formed in the vending machine through the selected is supplied. Control of the conversion supply of cold water and hot water is made through a control unit including a PCB substrate 140.

A small vending machine having a conventional cold water supply device removes the hot water supply pipe 240 inside the vending machine for supplying hot water, and then connects the cold water main supply pipe 220 of the cold water supply device to supply cold water, and conversely, cold water After removing the cold water main supply pipe 220 was supplied, the hot water supply pipe 240 was connected to supply hot water.

Therefore, the structure of the cold water supply pipe by the bidirectional connection pipe 250 of the cold water supply apparatus according to the present invention has a structure in which the cold water or hot water is automatically converted and supplied by the operation of the cold and hot water automatic conversion button, Discomfort due to replacement connection of the cold water main supply pipe 220 and hot water supply pipe 240 is improved.

That is, by operating the automatic hot and cold water conversion button provided on the front of the exterior case 110 described above, the cold and hot water supply switching is automatically made by a sequence previously input to the PCB substrate 140, cold water or hot water to the vending machine side. It will be supplied selectively.

-Control unit

2 to 4, the control unit is the overall control of the cold water supply apparatus 100 of the present invention, which is the display unit 130 and the display unit 130 provided on the front of the exterior case 110 It is configured to include a PCB substrate 140 for controlling the cold water supply apparatus 100 by the operation of a plurality of operation buttons 131 provided in the).

And, the operation button 131 is a cold and hot water automatic conversion button for switching the cold water and hot water supplied to the vending machine side, a temperature setting button for setting and adjusting the temperature of the water cooled by the cold water supply device 100, and It is configured to include a cold water supply amount selection button that can adjust the supply of cold water supplied to the vending machine side.

The automatic hot and cold water conversion button is configured as a structure of a single cold and hot water supply pipe through the two-way connecting pipe 250 the cold water supplied through the cold water main supply pipe 220 and the hot water supply pipe inside the vending machine, as described above, It is an operation button to select cold water or hot water.

Therefore, according to the cold water supply apparatus 100 according to the present invention, the water supply amount control in the cold water supply apparatus 100 itself can be made automatically.

The temperature setting button is a button that can arbitrarily adjust the temperature of the cold water cooled through the evaporator 330 provided inside the lower tank 120b, thereby allowing the supply of cold water at an appropriate temperature.

The cold water supply amount selection button adjusts the amount of cold water supplied to the vending machine, and the user may adjust the supply amount of the cold water in advance by operating the cold water supply amount selection button.

According to the cold water supply apparatus of the small vending machine according to the present invention as described above, by having a circulation pump that can circulate the water in the cold water tank of the cold water supply device, it is not frozen even below the freezing point of water to supply cooler cold water In addition, there is an effect that the residue does not remain in the cold water main supply pipe by the circulation of water.

In addition, by cooling the water by winding the evaporator inside the cold water tank of the cold water supply device, the condensation is prevented and the cold air of the evaporator is directly transferred to the water to increase the cooling efficiency.

In addition, by having a residual cold water discharge pipe for discharging the residual cold water in the lower portion of the cold water tank of the cold water supply device to discharge the residual cold water, it is possible to prevent corruption of the cold water stored in the cold water tank when the cold water supply device is not in use. In addition to the cleanliness of the jacket, it can also supply fresher cold water.

In addition, by providing a cold / hot water supply automatic conversion button in the cold water supply device, there is an effect that can automatically control the water supply amount in the cold water supply itself.

In addition, by having a water level sensor that can measure the amount of water in the cold water tank provided in the cold water supply device, it is possible to prevent water from falling or overflowing in the cold water tank, and to automatically supply water into the cold water tank. It has an effect.

While the invention has been shown and described with respect to particular embodiments, it will be understood that various changes and modifications can be made in the art without departing from the spirit or scope of the invention as set forth in the claims below. It will be appreciated that those skilled in the art can easily know.

Claims (12)

In the cold water supply unit for supplying cold water to a small vending machine, Appearance case; A cold water tank provided inside the outer case and storing water supplied from the outside to supply cold water and room temperature water to the small vending machine; A condenser provided on one side of the outer case and a compressor including a compressor, an expansion valve, and an evaporator provided inside the outer case; A water supply pipe in which water stored in the cold water tank is supplied to the small vending machine; And And a control unit controlling the amount of water supplied through the water supply pipe and simultaneously controlling the operation of the cooling device. The cold water tank is composed of a lower tank which is supplied with water from the outside and made cold water is stored and the upper tank integrally formed in the upper portion of the lower tank and supplied with water from the outside to maintain / store the room temperature water; Separation plate is provided on the inner boundary surface formed by the lower tank and the upper tank, the evaporator is provided on the inner bottom surface of the lower tank, a pump insertion hole is formed through one side of the lower tank, circulating cold water in the pump insertion hole Cold water supply device of a small vending machine, characterized in that provided; delete The method of claim 1, The cold water tank is cold water supply apparatus for a small vending machine further comprises a water level sensor for measuring the water level of the water supplied to the inside of the cold water tank at the upper end of the upper tank, and transmits this measurement value to the control unit. delete The method of claim 1, The cold water tank has a residual cold water outlet formed through the bottom of the other side of the lower tank, a residual cold water discharge pipe through which residual cold water is discharged to the vending machine side is coupled to the residual cold water discharge port, and controls the opening and closing of the residual cold water discharge pipe. Cold water supply device of a small vending machine, characterized in that it further comprises a cold temperature switching valve. The method of claim 1, The control unit is composed of a PCB substrate for controlling the cold water supply apparatus by the operation of the display unit and the operation button provided on the display unit provided on the front of the exterior case; The operation button further includes a cold and hot water automatic conversion button for switching between cold water and hot water supplied to the small vending machine, and the cold and hot water switching is automatically performed by a sequence previously input to the PCB substrate by the selection of the automatic cold and hot water conversion button. Cold water supply device of a small vending machine, characterized in that it has a controlled structure. The method of claim 6, The operation button further includes a temperature setting button for setting and adjusting the temperature of the water cooled by the cold water supply device, Cold water supply device of a small vending machine, characterized in that it has a structure capable of adjusting the temperature of the cold water by the control operation of the control unit according to the operation of the temperature setting button. The method of claim 6, The operation button further includes a cold water supply amount selection button for adjusting the supply amount of cold water supplied to the small vending machine, Cold water supply apparatus of a small vending machine, characterized in that it has a structure capable of adjusting the cold water supply amount by the control operation of the control unit according to the operation of the cold water supply amount selection button. The method of claim 1, The water supply pipe is a normal cold water discharge pipe for discharging residual cold water through a lower portion of the cold water tank and a normal water discharge pipe for discharging normal temperature water through an upper portion of the cold water tank, and supply the normal temperature water to the small vending machine, and the cold water tank. Cold water supply device for a small vending machine, characterized in that it comprises a cold water main supply pipe connected to the solenoid valve provided on one side of the lower side supplying cold water to the small vending machine. The method of claim 9, The cold water main supply pipe is a cold water supply device of a small vending machine, characterized in that made of a flexible silicone material. The method of claim 9, The cold water main supply pipe is further coupled to one end of the two-way connector at the same time the hot water supply pipe of the small vending machine side is coupled to one side of the two-way connection tube to form a cold and hot water supply pipe, the cold water and hot water is selected through the cold and hot water supply pipe Cold water supply device of a small vending machine, characterized in that it has a structure that is supplied. The method of claim 1, The cold water supply device is a cold water supply device of a small vending machine, characterized in that further comprising an auxiliary power connection terminal on one side of the outer case.

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