KR880002566Y1 - A vending machine - Google Patents

Abstract

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Description

Control device of instant hot water heater for vending machine

1 is a circuit diagram of the present invention.

The present invention relates to a control device of a hot water heater (Heater) in a device that requires hot water, such as cup noodle vending machine.

In the past, a hot water tank with a limited volume was installed in a vending machine to heat cold water (approximately 32 cups of sales) from the hot water tank and supply one cup of cold water. In the case of cold water instead of hot water, it was inconvenient to stop the sale, and even if the cup was not sold, if the temperature of the hot water tank was lowered, the power had to be continuously supplied to the heater to maintain a constant temperature. There was a drawback of increased consumption.

The present invention installs a sequence circuit device for simple heating heater control so that only one cup of cold water is supplied from the cold water tank and instantaneously heated while passing one cup of cold water to solve the above-mentioned drawbacks. Therefore, it is not possible to perform the sales function immediately after the power is turned on, but the heater performs the heating operation only when necessary to reduce power consumption as described in detail by the accompanying drawings as follows.

1 is a circuit diagram of the device of the present invention, where LS ₁ is a water level sensor, V ₁ is a valve connected to a water pipe, R ₁ is a driving relay, L ₁ is a push button operation indicator lamp, TM is a timer, and R ₂ is power. Relay, H is heating heater, R ₃ is drive relay, V ₂ is discharge valve, L ₂ is cup inlet indication lamp, R ₄ is drive relay, M is pump drive motor, TMa, TMb is timer a , contact b, FLa, FLb are a, b contact of the water level sensor, PB is push button, LS ₂ is contact b of the cup detection switch, 1a ₁ -1a ₅ is contact a of relay (R ₁ ), 2a ₁ is Contact a of relay R ₂ , 3a ₁ , 3a ₂ are contact a of relay R ₃ , 3b ₁ is contact b of relay R ₃ , 4a ₁ is contact a of relay R ₄ , 4b ₁ , 4b ₂ indicates the contact b of the relay R ₄ , the contact a is a contact connected when the corresponding relay is driven, and the contact b is a contact connected when the relay is not driven.

According to the present invention, the valve V ₁ is connected in series with the water level sensor LS ₁ , and the contact 4b ₁ and the relay R _{1 are} connected to the contact 1a ₁ and the display lamp at the coin input signal COIN terminal. (L ₁ ), contact (la ₂ ) and timer (TM). The contact 1a ₃ , the timer contact TMb, and the relay R ₂ are connected in series, and the contact 2a ₁ and the heater H are connected in series to the heater power supply 380V terminal, and the contacts 1a ₄ , ( TMa), connected in series to the relay (3a ₂₎ the valve (V ₂₎ and a display lamp in the push travertine (PB) with a contact point (3a ₁₎ by parallel connection of the relay (R ₃₎ being connected in series to (FLb) ( L ₂ ) in parallel, connected in series (Fla) (3b ₁ ) (LS ₂ ) and relay (R ₄ ) to the contact (4a ₁ ) and the pump drive motor (M), respectively. In the control signal terminal CONT, the contact 1a ₅ is configured by connecting the contact 4b ₂ in series.

Referring to the effect of the present invention configured as described above are as follows.

First, since the sales signal of the vending machine body is not transmitted in the standby state, even if the push button (PB) is pressed, power is not applied to the device, and thus hot water is not supplied.

In this case, only the fluorescent lamp inside the display case (not shown) installed in the upper part of the front of the vending machine is turned on and there is no power consumption of the heater H.

Is the next heating preparation state, the applied power at the same time the coin signal terminal (COIN) contacts (4b _1), the relay (R ₁₎ through (a relay (R ₄₎ is being connected state so off (OFF) status) The display lamp L ₁ is turned on at the same time as being driven and brought into a self-hold state by the contact 1a _{1 thereof} , thereby indicating that the control device of the present invention is in operation.

In this state, since the contact 1a ₂ is connected according to the relay R ₁ driving, the timer TM operates so that the power relay R ₂ operates only for a set time, so that the contact 2a ₁ is connected. Therefore, the terminal 380V voltage is applied to the hutter H to heat the water in the tank.

At this time, even if the push button PB is pressed during the operation of the heater H, the hot water is not discharged because the contact TMa of the timer TM is in an OFF state.

Next, the hot water discharging operation will be described. As described above, after the water is heated for the set time of the timer TM, the contact TMa of the timer TM is connected, and at this time, the push button PB is pressed. At the same time as the relay R ₃ is driven, its contact point 3a ₂ is connected to open the discharge valve V ₂ , and at the same time, the indicator lamp L ₂ inside the cup drawer is turned on to indicate that the hot water is discharged.

Here, when all the hot water is discharged, the contact point FLb of the water level sensor is opened, the relay R ₃ stops driving, the discharge valve V ₂ is closed, and the display lamp L ₂ is turned off.

After the discharge of the hot water is completed, if the contact point FLa of the water level sensor is connected and the cup is removed during the cup-in, the switch LS ₂ is returned to the ON state, so that the relay R ₄ is driven and its contact point at the same time. 4a ₁ is connected and the pimp drive motor M is operated to supply water to the heater tank.

When water supply is completed in such a state, the contact point FLa of the water level sensor is turned off and the relay R ₄ stops driving, so the pump driving motor M also stops driving and water supply is stopped.

Wherein the relay (R ₄₎ whose contacts (4b ₁₎ are open and thereby release the interlock (Inter lock) of the invented device as a relay (R ₁₎ off, and the relay (R ₄ after the water supply completion of the tank while driving ) Is off, the interlock of the vending machine itself is completely released, and the standby state is returned.

In addition, the valve (V ₁ ) connected to the water supply pipe by the operation of the water level sensor (LS ₁ ) is to replenish the water in the tank.

The present invention, which operates as described above, not only performs the sales function immediately after the power is turned on, but also the heater is heated only when necessary (at the time of sale), thereby reducing the power consumption. It is an idea.

Claims (1)

In a device requiring hot water such as a cup noodle vending machine, a valve V _{1 is} provided to the level sensor LS ₁ , and a contact 4b ₁ and a relay R ₁ are respectively provided to the coin input signal terminal COIN. The contact 1a ₂ and the timer TM are connected in series with the contact 1a ₃ , the timer contact TMb, and the relay R ₂ , respectively, and the contact 2a ₁ and the heater are connected to the heater power supply terminal 380V. H) is connected in series, the pushbuttons PB and the contacts 3a ₁ are connected in parallel with the contacts 1a ₄ , TMa, and FLb in series, and connected in series with the relay R ₃ . To the contact (3a ₂ ), the valve (V ₂ ) and the indication lamp (L ₂ ) are connected in series, and the contacts (FLa), (3b ₁ ), (LS ₂ ) and the relay (R ₄ ) are connected in series. (4a ₁ ) and the pimp drive motor (M) are connected in series, respectively, the control signal terminal (CONT) of the instantaneous hot water heater for the vending machine, characterized in that it is configured by connecting the contact (1a ₅ ) and the contact (4b ₂ ) in series Control unit.