RU2314738C2 - Coffee generator - Google Patents

Abstract

FIELD: kitchen equipment, in particular, coffee preparing technique.

SUBSTANCE: coffee generator has casing with cover, working reservoir, filter, and bottle. Working reservoir is equipped with electrode fixed within cover of casing and extending axially thereof, and valve-electrode put onto opening provided in lower part of reservoir. Grid positioned under valve-electrode for movement in vertical plane is adapted for setting of replaceable filter. Ejector is positioned centrally of grid. Electric circuit comprises control device and high-voltage pulsed electric generator. Circular electromagnet is fixed between valve-electrode. Labyrinth sealing is provided on surface of valve-electrode contacting with working surface. Ribs of spiral guide are fixed on inner surface of reservoir. Tray is pivotally fixed in lower part of casing so as to contact with button for initiation of electric circuit. Casing is equipped with door and heat-insulating cover. Casing cover has calibrated safety opening.

EFFECT: increased efficiency of apparatus and intensified coffee preparing procedure.

7 cl, 2 dwg

Description

The invention relates to kitchen equipment, and more specifically to a device for making coffee.

An espresso coffee machine is known (an option for preparing small amounts of coffee, without a pressure pump), including a boiler, a filter extractor, a flask for a finished drink (Automatic coffee systems. - Equipment for trade. No. 5 and 7 for 2005).

The disadvantages of the known coffee makers are the large investment of time in preparing coffee and the need for preliminary grinding of coffee beans.

The closest analogue of the claimed invention is a coffee maker containing a housing with a lid, a working container, a filter and a flask (GB patent No. 2408920, class A47J 31/42, 06/15/2005).

The technical result achieved in the claimed invention is to accelerate the process of preparing coffee and the possibility of using coffee beans.

The specified technical result is achieved by the fact that in the known coffee maker, comprising a housing with a lid, a working container for coffee beans, a filter, a flask for a finished drink and an electrical circuit with a control device, according to the invention, the working container is equipped with an electrode fixed vertically in the housing cover moving along its axis and the electrode valve mounted on the hole in its lower part, while under the electrode valve is installed with the possibility of vertical movement of the lattice for I place a replaceable filter on it, in the center of which a pusher is made, an annular electromagnet is fixed between the valve electrode and the grill, which, when voltage is applied to it, ensures the movement of the grill and the interaction of the pusher with the electrode valve, which opens an opening in the container for supplying a drink to the filter and the electric circuit includes a high-voltage pulse generator that creates an electro-hydraulic shock in the tank when a high-voltage pulse is applied to the electrodes to grind coffee beans and heat water.

On the surface of the valve electrode in contact with the working capacity, a labyrinth seal may be made.

In the lower part of the housing a pallet can be pivotally fixed in contact with the power supply button for the electrical circuit.

The housing can be equipped with a door and thermal insulation, and the housing cover has a calibrated safety hole.

The invention is illustrated by drawings, on which:

figure 1 General view of the coffee generator;

figure 2 - its electrical circuit.

The proposed coffee generator is mounted inside the housing 1, equipped with a cover 2, and includes a working container 3 with an electrode 4 mounted in the cover 2 with the possibility of vertical movement, and a valve electrode 5 mounted on the hole in the lower part of the working container. Under the valve electrode 5, an annular electromagnet 6 is rigidly fixed, and under it a holder 7 of the grill 8 for a replaceable filter 9 with a pusher 10 in the center.

The holder 7 is pivotally mounted on the housing 1 with a latch securing the holder in a horizontal position (the latch is not shown in the drawings). On the surface of the valve electrode 5 in contact with the working capacity, a labyrinth seal 11 is made. On the inner surface of the working capacity, ribs 12 of the spiral guide are fixed. An electrical circuit 13 is placed in the lower part of the housing 1, including a control device and a high-voltage pulse electric generator, an emphasis 14, and a pallet 15 pivotally fixed in contact with a button 16 that turns on the power supply to the electric circuit. In the cover 2 there is a calibrated safety hole 17, which serves to relieve excess pressure. The housing 1 has a door 18 and is provided with thermal insulation 19. Thermal insulation 19 also serves to reduce the noise level from a working coffee generator.

The coffee generator operates as follows. Using the head 20, the electrode 4 is pulled to the upper position and, tearing off the lid 2, the calculated amount of water and coffee beans is fed into the working container 3. Having closed the cover 2, lower the electrode 4 to the working position. Having lowered the movable side of the holder 7, a replaceable filter 9 is placed on the grill 8. Moving the holder 7 to the horizontal position, the flask 21 is installed, pushing it until it contacts the stop 14, the door is closed 18. Under the influence of the weight of the flask 21, the pallet 15 is lowered and presses button 16, which turns on the power to the electrical circuit of the coffee generator.

When the charge on the capacitor of the electric circuit reaches the required value, information is given (for example, the signal light comes on) about the readiness of the generator to prepare the drink.

When you click on the button "Preparation of the drink", the electrical circuit delivers a high-voltage pulse to the electrodes 4 and 5. In the aqueous phase contained in the working tank 3, an electro-hydraulic shock occurs. Impulses of pressure and vacuum crush coffee grains, pressure sharply intensifies the process of extraction of substances that add taste and aroma to the drink. Extraction is completed in a matter of seconds. After that, the electric circuit supplies voltage to the electromagnet 6, which attracts the grating 8 up. In this case, the pusher 10 raises the valve electrode 5. Through the opened hole, the finished drink is directed to the filter 9 on the spiral guide 12, acquiring a rotational movement. Coffee grounds due to centrifugal force rush from the axis of the working container 3, freeing the top of the filter valve 5, and passes along with the beverage flow through the hole controlled by it to the filter 9. The finished coffee passes through the filter 9 and the holes in the grill 8 and is collected in flask 21, leaving thick on the filter 9. The finished drink from the flask 21 is poured into cups. Having lowered the movable part of the holder 7, replace the used filter 9 with a fresh one. The holder 7 is moved to a horizontal position, the flask 21 is placed on the pallet 15 and the door 18 is closed. The coffee generator is ready for further work.

Heating the water to a boil, typical of the prototype and taking several minutes, in the present invention is replaced by electro-hydraulic shock, lasting a split second, which significantly reduces the time for making coffee. The use of coffee beans without prior grinding gives consumers certain convenience.

Claims (7)

1. Coffee generator, comprising a housing with a lid, a working container for coffee beans, a filter, a flask for a finished drink and an electrical circuit with a control device, characterized in that the working container is equipped with an electrode fixed to the housing cover with the possibility of vertical movement and passing through it axis, and a valve electrode mounted on the hole in its lower part, while under the electrode valve is installed with the possibility of vertical movement of the grill to place a replaceable filter on it, in the center of which There is no pusher, an annular electromagnet is fixed between the electrode valve and the grill, which, when voltage is applied to it, ensures the lattice moves and the pusher interacts with the electrode valve opening the hole in the container for supplying the drink to the filter, and the electric circuit includes a high-voltage pulse generator that creates an electro-hydraulic shock in the tank when a high voltage pulse is applied to the electrodes to grind coffee beans and heat water. 2. The generator according to claim 1, characterized in that on the surface of the valve electrode in contact with the working capacity, a labyrinth seal is made. 3. The generator according to claim 1, characterized in that on the inner surface of the working vessel the ribs of the spiral guide are fixed. 4. The generator according to claim 1, characterized in that in the lower part of the housing a pallet is pivotally fixed in contact with the power button of the electrical circuit. 5. The generator according to claim 1, characterized in that the housing is equipped with a door. 6. The generator according to claim 1, characterized in that the housing cover has a safety calibrated hole. 7. The generator according to claim 1, characterized in that the casing is provided with a heat insulating coating.

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