JPH0767B2 - Beverage extractor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to a beverage extractor for pouring hot water into a raw material of coffee or black tea and providing it as a beverage liquid.

(Prior Art) Conventionally, in a beverage extraction device that can obtain a cup of beverage liquid and a large amount of beverage liquid, in order to obtain a flavorful beverage liquid when hot water is sufficiently permeated into the beverage raw material, Beverage extraction is set by narrowing the opening area of the valve orifice for full extraction and setting the opening time of the solenoid valve to match the extraction amount of each one cup and many cups of beverage liquid. I was going. However, according to this method, there is a drawback that the extraction time is long when a large amount is extracted. Therefore, in order to eliminate this drawback, it is conceivable to provide two electromagnetic valves and hot water supply circuits in which the opening areas of the orifices of the electromagnetic valves are different.

(Problems to be Solved by the Invention) However, the method of providing two solenoid valves having different opening areas of the orifices of the solenoid valve and the hot water supply circuit has a drawback that the structure becomes complicated and the cost becomes high. .

It is an object of the present invention to provide a beverage extraction device that has a simple configuration and that does not impair the flavor of the beverage liquid when extracting one cup and that can shorten the extraction time when extracting a large number of cups.

[Structure of the Invention] (Means for Solving the Problem) In order to solve such a problem, the present invention relates to a water heater and hot water supplied from the water heater in a basket through a solenoid valve. In a beverage extraction device for pouring hot water into a raw material to obtain a cup or a large amount of beverage liquid, the opening area of the orifice of the solenoid valve is set for multiple cups, and the solenoid valve is intermittent at the time of full cup extraction. In addition to opening and closing, the solenoid valve is continuously opened when a large amount of water is extracted.

(Operation) When extracting one cup, the electromagnetic valve is intermittently opened and closed to intermittently pour hot water into the beverage raw material in the basket, and the hot water permeates the beverage raw material to extract the beverage liquid. Further, when a large number of cups are extracted, the solenoid valve is continuously opened and hot water is poured all at once to the beverage raw material to extract the beverage liquid in a short time.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

First, the structure of the beverage extraction device will be described with reference to FIG. 1
Is a main body case, and a water heater 2 is provided in an upper part of the main body case 1. The water heater 2 comprises a water tank 3, a heating element H provided in the lower part of the water tank 3, and a tank lid 4 provided in the upper part. A hot water supply pipe 5 has a hot water supply port slightly above the heating element H in the water tank 3 so as to prevent emptying, and the lower end is connected to the solenoid valve 6. As shown in FIG. 4, this solenoid valve 6 has a solenoid valve body 6a having a valve hole 6b and an orifice 6c, an electromagnetic coil 6d, a fixed core 6e, and a valve body 6f for opening and closing the valve hole 6b below. A movable core 6g, a spring 6h, and a needle for adjusting the opening area of the orifice 6c.
It is composed of 6i etc. Reference numeral 7 denotes a basket, which is detachably provided below the solenoid valve 6, and has a pull-out handle 8 at the front and an extraction port 9 at the bottom. Reference numeral 10 denotes a set switch which is opened / closed in association with the attaching / detaching operation of the basket 7. Reference numeral 11 is a cup placed below the extraction port 9, and 12 is a water tray provided below the cup 11. In addition, 13 is an overflow pipe, 14 is a drain pipe, and 15 is the overflow pipe 1
3, a dust case that stores water discharged from the drain pipe 14 and the like.

Next, the electric circuit will be described with reference to FIG. 16 is a power plug, and this power plug 16 has a power switch 17
A series circuit of a solenoid valve opening / closing switch 18, which is opened / closed by a solenoid valve control relay described later, the solenoid valve 6, and an overheat prevention thermostat 19 is formed. The series circuit of the solenoid valve opening / closing switch 18 and the solenoid valve 6 is connected in parallel with a series circuit of a heating element opening / closing switch 20 and the heating element H which are opened / closed by a heating element control relay described later. Also,
A full-wave rectifier circuit 22 is connected in parallel to a series circuit of the heating element open / close switch 20 and the heating element H via a transformer 21 so that a DC power is supplied to a microcomputer 23. Then, on the input side of this microcomputer 23, there is provided a first unit for extracting one cup of beverage liquid.
Extraction switch 24 and the second extraction switch for large cups
25 and are connected respectively. Similarly, on the input side of the microcomputer 23, the set switch 10, an appropriate temperature detection thermistor 26 for detecting that the hot water in the water tank 3 is suitable for extraction, and the hot water in the water tank 3 are connected. A boiling thermistor 27 that detects boiling has been connected to each. Also, on the output side of the microcomputer 23, a first extraction switch 24 for extracting one cup of beverage liquid or a second extraction switch for extracting a large number of cups.
A solenoid valve control relay 28 for operating a timer in the microcomputer 23 based on an input signal from any one of 25 to control the solenoid valve opening / closing switch 18 to open / close and to intermittently or continuously energize the solenoid valve 6. The heating element opening / closing switch based on the boiling signal of the boiling thermistor 27
The heating element control relays 29 for opening and closing the heating elements H to control the power supply to the heating elements H are connected to each other. Similarly, the power switch is provided on the output side of the microcomputer 23.
The power supply display LED30 for displaying the power supply state of the beverage extracting device by turning on 17, the suitable temperature display LED31 for displaying that the hot water in the water tank 3 is in the suitable temperature state based on the suitable temperature signal of the suitable temperature detection thermistor 26, and Extraction display LEDs 32 that indicate that extraction is in progress based on an input signal from either the first extraction switch 24 for full extraction or the second extraction switch 25 for multiple extraction are respectively connected.

Next, the operation in the case of extracting a drinking liquid such as a cup of coffee will be described.

First, a small amount of coffee beans A, which is a beverage raw material, is stored in the basket 7, the basket 7 is slid and set in the main body case 1, and the set switch 10 is closed. And
When the power switch 17 is turned on, the power indicator LED 30 lights up and the heating element H is energized. The opening area of the orifice 6c of the solenoid valve 6 is set to be large for extraction of a large amount by adjusting the needle 6i. When the water W in the water tank 3 rises to the proper temperature, the proper temperature detection thermistor 26 operates and the proper temperature display LED 31 lights up to display the extractable state. Next, when the first extraction switch 24 for full extraction is turned on from this state, the extraction display LED 32 lights up and the timer in the microcomputer 23 operates, as shown in the time chart (a) of FIG. An intermittent energization signal for which the ON time is shorter than the OFF time is output to the solenoid valve control relay 28 for a predetermined time. Then, based on this intermittent energization signal, the solenoid valve open / close switch 18 is intermittently opened / closed, the electromagnetic coil 6d of the solenoid valve 6 is intermittently energized to move the moving core 6e up and down against the spring 6h, and The holes 6b are opened and closed intermittently. Therefore, the hot water in the water tank 3 is slowly poured into the coffee beans A in the basket 7 through the hot water supply pipe 5 and sufficiently permeates the coffee beans A to extract a flavorful coffee liquid.

Next, the operation of extracting a large amount of coffee liquid will be described.

First, a large amount of coffee beans A, which is a beverage raw material, is stored in the basket 7, the basket 7 is slid and set in the main body case 1, and the set switch 10 is closed. Further, instead of the cup 11 for extracting one cup, a container for collecting many cups such as a decanter is set. Then, when the second extraction switch 25 for a large number of extractions is turned on, the extraction display LED 32 lights up and the timer in the microcomputer 23 operates, and as shown in the time chart (b) of FIG. A continuous energization signal is output to the solenoid valve control relay 28 for a time corresponding to. Therefore, while the hot water in the water tank 3 permeates the large amount of coffee beans A in the basket 7 through the hot water supply pipe 5, it is poured all at once and a large amount of decanter-filled coffee liquid is extracted in a short time.

EFFECTS OF THE INVENTION According to the present invention, the opening area of the orifice of the solenoid valve is set for extraction of a large amount, the solenoid valve is opened and closed intermittently at the time of full extraction, and the solenoid valve is continuously opened at the time of extraction of a large amount. With the simple structure, the flavor of the beverage liquid is not impaired at the time of full cup extraction, and the extraction time can be shortened at the time of large cup extraction.

[Brief description of drawings]

1 to 4 show a beverage brewing apparatus showing an embodiment of the present invention, FIG. 1 is a longitudinal sectional view thereof, FIG. 2 is an electric circuit diagram, FIG. 3 is a time chart diagram, and FIG. FIG. 4 is a vertical sectional view of a solenoid valve. 2 ... Water heater, 6 ... Solenoid valve, 6c ... Orifice, 7 ... Basket,

Claims (1)

[Claims] 1. A hot water supply device and a beverage extraction device for pouring hot water supplied from the hot water supply device into a beverage raw material in a basket through an electromagnetic valve to obtain a drink liquid for one cup or many cups. The opening area of the orifice of the solenoid valve is set for multiple extraction, the solenoid valve is opened and closed intermittently during full extraction, and the solenoid valve is continuously opened during multiple extraction. Characterized beverage extraction device.