JP2013255621A - Electric water heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric water heater which has a function to make coffee by a coffee extractor with automatic hot water delivery according to a hot water delivery sequence without keeping pushing a hot water delivery switch, and to which a function enabling manual operation so that a user can optionally pour additional hot water for steaming during a steaming process is added.SOLUTION: In a composition to operate, when an extraction start switch 7 is turned on, a hot water delivery sequence for coffee extraction, the sequence being composed of a first drip process for delivering hot water for steaming in an amount depending on the number of cups set by a cup number selection means 8, a steaming process for steaming, and a second drip process for main extraction, an automatic hot water delivery control means 6 enables a hot water delivery switch 4 to be controlled during the steaming process, and controls to extend a steaming time by only a time that the hot water delivery switch 4 is operated.

Description

  The present invention relates to an electric water heater with an automatic hot water discharge function for a coffee extractor that can automatically discharge hot water to a paper filter coffee extractor using hot water in a water heater container.

  In recent years, there has been proposed an electric water heater with a coffee extraction function that is designed so that hot water can be easily poured into a drip-type regular coffee extractor using a paper filter. According to this kind of electric water heater, the flow rate of the hot water while pressing the hot water switch is made smaller than usual so that the coffee powder is less likely to splatter, and a certain amount of hot water is automatically discharged to prevent excessive hot water. (For example, refer to Patent Document 1).

JP-A-2-111327

  However, since the conventional configuration is not a device dedicated to coffee extraction like a coffee maker, the steaming hot water is uniformly distributed throughout the coffee grounds in order to control only the hot water discharge time according to a predetermined hot water discharge sequence. It was not necessarily controlled to pour, and there was a problem that the concentration and taste of coffee fluctuated each time when hot water was not poured uniformly into the flour.

  The present invention solves the above-mentioned conventional problems, has a function of automatically pouring hot water according to a hot water sequence and putting coffee in a coffee extractor, and the user can arbitrarily add hot water for steaming during the steaming process. It is an object of the present invention to provide an electric water heater with a coffee extraction function to which a function of enabling manual hot water discharge so as to be additionally poured can be provided.

  In order to solve the above-mentioned conventional problems, an electric water heater of the present invention comprises a water heater container that boils hot water, a hot water discharge means that discharges hot water in the water heater container from a hot water outlet, and manually operates the hot water discharge means. A hot water discharge switch, an automatic hot water control means for controlling the hot water means to automatically pour hot water into a coffee extractor installed immediately below the hot water outlet, an extraction start switch for starting a hot water extraction sequence dedicated to coffee extraction, Cup number selection means for automatically selecting the number of coffee cups to be extracted, and when the extraction start switch is turned on, the automatic hot water control means is for steaming in an amount corresponding to the number of cups by the cup number selection means. Coffee composed of a first drip process for hot water, a steaming process for steaming, and a second drip process for main extraction In the configuration of operating a hot water discharge sequence for discharging, the hot water switch can be operated during the steaming process to eliminate uneven pouring during the first drip process, and the hot water switch is operated only for the time during which the hot water switch is operated. The steaming time is controlled to be extended.

  Accordingly, the hot water can be automatically discharged until all the coffee is extracted by the selected number of cups without pressing the hot water switch. Furthermore, it is possible to provide an electric water heater in which steaming hot water can be manually added arbitrarily even during the hot water by automatic control, and the steaming time is automatically extended by the manually added hot water time.

  The electric water heater of the present invention can automatically discharge hot water according to a hot water discharge sequence until all of the selected number of cups of coffee have been extracted. Furthermore, if the method of pouring hot water for steaming is not uniform to the flour, additional hot water can be added manually during the steaming process, and the coffee concentration every time to extend the steaming time by the hot water added manually, It is possible to provide an electric water heater with an easy-to-use coffee extraction function with little variation in taste.

Configuration diagram of an electric water heater in an embodiment of the present invention

  The electric water heater of the present invention comprises a water heater container that boils and retains water, a hot water outlet that discharges the hot water in the water heater container from a hot water outlet, a hot water switch that manually operates the hot water outlet, Select automatic hot water control means for controlling the above hot water means to automatically pour hot water into the coffee extractor installed directly below, an extraction start switch for starting a hot water extraction sequence exclusively for coffee extraction, and the number of coffee cups to be automatically extracted A first drip step of pouring hot water for steaming in an amount corresponding to the number of cups by the cup number selection means when the extraction start switch is turned on. Operates the tapping sequence for coffee extraction, which consists of the steaming process for steaming and the second drip process for main extraction. In this configuration, the hot water switch can be operated to eliminate uneven pouring during the first drip process during the steaming process, and the steaming time is controlled to be extended by the time the hot water switch is operated. To do.

  Accordingly, the hot water can be automatically discharged according to the hot water discharge sequence until the coffee is completely extracted without continuing to press the hot water switch. In addition, if the method of pouring hot water for steaming is not uniform in the powder, a function that allows additional hot water to be added manually during the steaming process is added, so coffee with little fluctuation in the concentration and taste of coffee every time. Can be extracted.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 shows a configuration diagram of an electric water heater according to an embodiment of the present invention.

  In FIG. 1, a water heater 1 is a container for boiling water and keeping warm. The tap 2 is a spout for pouring hot water to the outside. The hot water means 3 includes a hot water motor 3a and a hot water pump 3b.

  The hot water switch 4 is a switch for manually operating the hot water means 3. The automatic hot water control means 6 is a control means comprising a microcomputer which stores a sequence of operations for driving the hot water means 3 and automatically pouring hot water into the coffee extractor 5.

  The extraction start switch 7 is a switch for starting the hot water for coffee extraction installed in the operation unit of the electric water heater. The cup number selection means 8 is a switch that selects any one of 1 cup to 5 cups similarly installed in the operation unit.

  About the electric water heater comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

First, the user selects the number of cups to be extracted by the cup number selection means 8 from 1 cup to 5 cups. When the extraction start switch 7 is turned on, the automatic hot water control means 6 starts the hot water discharge according to a sequence stored in advance. The sequence is shown in Table 1.

  As shown in Table 1, it is composed of a first drip process for extracting hot water for steaming, a steaming process, and a second drip process for extracting hot coffee for extracting a specified amount of coffee, and the driving time of the hot water motor 3a in each process The time of the intermittent on / off duty and the time of the steaming process in which the steaming motor 3a is stopped and steamed are stored in advance in the automatic hot water control means 6 according to the number of cups. For example, when the selection of the cup number selection means 8 is 2 cups, the sequence number 2 in Table 1 is selected.

  First, in the first drip process, the hot water motor 3a is turned on for 4 seconds. In the present embodiment, when the hot water motor 3a is driven for 1 second, about 20 ml of hot water is discharged, and about 80 ml of hot water is discharged after 4 seconds of hot water. Next, in the steaming step, the hot water motor 3a is turned off for 35 seconds.

  Next, when the steaming is completed, the process proceeds to a second drip process, and the hot water motor 3a is driven until the total on-time is 12 seconds with an intermittent duty cycle of 2 seconds on and 5 seconds off, and hot water is extracted to extract coffee.

  Here, when you want to increase the amount of hot water for steaming, such as when the hot water discharged in the first drip process is not evenly sprayed into the powder of the coffee extractor 5 when entering the steaming process, the hot water switch during the steaming process 4 can be operated to add additional hot water.

  In that case, the time of the steaming process is controlled to be extended by the time of operating the tapping switch 4 so as to secure the initial steaming time.

  For example, when the hot water switch 4 is pressed and additional hot water is discharged for 2 seconds, the steaming process takes 37 seconds. After that, when the second drip process is finished, the buzzer notifies the end of the hot water.

  As described above, in the present embodiment, the automatic hot water control means 6 automatically controls the hot water time and the hot water timing of the hot water means 3 based on a predetermined coffee extraction sequence. Even if you do not keep pressing it, you can automatically pour out until all the coffee has been extracted. Furthermore, since the additional hot water can be operated by operating the hot water switch 4 in the steaming process, uneven watering in the first drip process can be eliminated, and the steaming time is controlled to be extended for the additional hot water time. You can easily make a delicious and stable coffee every time.

  As described above, since the electric water heater according to the present invention can automatically perform hot water suitable for coffee extraction, it can also be applied to uses such as a heated extractor for beverages.

DESCRIPTION OF SYMBOLS 1 Hot water container 2 Hot water outlet 3 Hot water means 3a Hot water motor 3b Hot water pump 4 Hot water switch 5 Coffee extractor 6 Automatic hot water control means 7 Extraction start switch 8 Cup number selection means

Claims (1)

To a water heater container for boiling and keeping hot water, a hot water outlet means for discharging hot water in the hot water container from a hot water outlet, a hot water switch for manually operating the hot water outlet, and a coffee extractor installed directly under the hot water outlet Automatic hot water control means for controlling the hot water means for automatically pouring hot water;
An extraction start switch for starting a hot water extraction sequence dedicated to coffee extraction, and a cup number selection means for selecting the number of coffee cups to be extracted automatically, and the automatic hot water control means, when the extraction start switch is turned on, A hot water extraction sequence for coffee extraction composed of a first drip process in which an amount of hot water for steaming according to the number of cups selected by the cup number selection means, a steaming process in which steaming is performed, and a second drip process in which main extraction is performed In order to eliminate uneven pouring during the first drip process during the steaming process, the hot water switch can be operated, and the steaming time is extended by the time when the hot water switch is operated. Electric water heater to control.

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