JPH0625235Y2 - Electric warming pot - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial field of application) The present invention relates to an electric insulation pot with a coffee extraction function.

(Prior Art) As an electric heat-insulating pot for boiling water, a tank is provided in the main body, a heater is attached to this tank, and this heater boiles and keeps hot water in the tank. It is known that an electric pump is operated so that the electric pump is sequentially discharged from the tap hole.

And recently, an electric drip-type coffee extractor is appropriately placed below the tap opening, and hot water flowing out from the tap is introduced into this coffee extractor to enable extraction of coffee. It is provided.

In such an electric insulation pot with a coffee extraction function, it is possible to selectively set the hot water discharge mode to the manual mode and the automatic mode, and when the means mode is set,
While pressing the hot water switch with your fingertip, hot water continuously flows out from the hot water outlet at a large flow rate, and when the fingertip is released from the hot water switch, the hot water stops flowing out, so that the desired amount of hot water can be quickly output. Can be obtained. On the other hand, when the automatic mode is set, the electric pump is driven by the control of the microcomputer by the trigger signal when the hot water switch is pressed, and the hot water is squeezed to a flow rate suitable for extraction of coffee by this drive. It automatically flows out of the tap hole for a predetermined time, so that the coffee can be properly extracted by the drip method.

(Problems to be solved by the invention) By the way, in the setting mode of the manual mode, when the touch switch is accidentally touched and pressed almost instantaneously, the electric pump is driven instantaneously. However, there is a slight time lag between the driving of the electric pump and the actual flow of hot water, so there is no danger of hot water inadvertently flowing out of the hot water outlet. In the automatic mode setting state, if you accidentally touch the hot water switch and press it almost instantaneously, the automatic mode function will work immediately and the hot water will be automatically discharged from the hot water spout for a predetermined time. There is a risk of spillage and accidental burns.

This invention was made by paying attention to such a point, and the purpose is to always touch the tap switch at almost instantaneously regardless of which mode is set. It is to provide a safe electric heat-insulating pot that can prevent careless outflow of hot water.

[Structure of the Invention] (Means for Solving the Problem) In order to achieve such an object, the present invention allows hot water boiled in a tank to flow out from a hot water outlet by the operation of an electric pump based on the operation of a hot water switch. In addition, the hot water discharge type can be selectively set to the manual mode and the automatic mode.When the manual mode is set, the electric pump is driven only while the hot water discharge switch is operated, and hot water is discharged. When the automatic mode is set, the electric pump is driven by the microcomputer control by the trigger signal by the operation of the hot water switch when the automatic mode is set, and the hot water whose flow rate is narrower than that when the manual mode is set is automatically set for a predetermined time. When the automatic mode is set, the electric pump is driven after the operation for the hot water switch is held for a minute time. It is obtained so as to provide a delay means for start.

(Operation) When the hot water discharge switch is pressed for a predetermined minute time or more when the automatic mode is set, the hot water whose flow rate has been reduced thereafter flows out automatically from the hot water outlet for a predetermined time. Then, the boiling water can be used to extract the coffee by the drip method.

On the other hand, when the hot water switch is accidentally touched and pressed almost instantaneously when the automatic mode is set, the pressing state of the hot water switch is not maintained for a predetermined time, so the drive of the electric pump does not start and Inadvertent outflow of hot water is prevented.

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

2 to 5 show the structure of the electric heat-insulating pot. Reference numeral 1 is a cylindrical main body, a tank 2 is housed in the main body 1, and a heater 3 is attached to the outer periphery of the lower portion of the tank 2. . An electric pump 4 connected to the bottom surface of the tank 2 and a control unit 5 for controlling the electric pump 4 and the heater 3 are provided on the lower surface side of the tank 2. A molten metal guiding path 6 is led out from the electric pump 4, the molten metal guiding path 6 stands up along the tank 2, extends from the upper front surface of the main body 1 to the outside thereof, and is further bent downward in a substantially V shape. The tip of the lever is a tap 7. A check valve 8 and a flow rate detector 9 are provided in the middle of the molten metal guiding path 6.

An upper lid 10 is rotatably attached to the upper end of the main body 1, and an opening at the upper end of the tank 2 is opened and closed by the upper lid 10. Further, a cover 11 is provided on the upper end of the main body 1. The cover 11 covers the part of the molten metal channel 6 extending to the front side of the main body 1.

The lower end of the main body 1 is provided with a heat retaining tray 15 which can be pulled out on the front side thereof, and in FIG. 2 to FIG. 4, the heat retaining tray 15 is pulled out to the front side of the main body 1 and the heat retaining tray 15 is pulled out. The coffee bottle 16 is placed on the tray 15, and the dripper 1 is used as a coffee extractor on the coffee bottle 16 so as to face the tap hole 7.
7 is set.

On the upper surface of the cover 11, a push button type hot water switch 20, a manual mode switch 21, an automatic mode switch 22, a reboiling switch 23, and a timer switch 2 are provided.
4, a manual mode lamp 25 and an automatic mode lamp 26, each of which includes an LED, are provided. A microcomputer 28 is incorporated in the control unit 5. The hot water discharge switch 20, the manual mode switch 21, and the automatic mode switch 22 are provided at the input terminals of the microcomputer 28, and the electric pump 4 and the manual mode lamp are provided at the output terminals. 25 and an automatic mode lamp 26 are connected to each other. When the manual mode switch 21 is pressed, the contact is closed to set the hot water supply mode to the manual mode, and the manual mode lamp 25 is turned on. When the automatic mode switch 22 is pressed, the manual mode switch 21 Automatic mode switch 22 with contact open
The contact is closed to set the automatic mode, and the automatic mode lamp 26 is turned on. When the hot water discharge switch 20 is pressed when the manual mode is set, the electric pump 4 is driven at the same time as the hot water discharge switch 20 is operated, and the hot water in the tank 2 is, for example, 20
It flows out from the hot water outlet 7 at a flow rate of 00 to 3000 cc / min, and the drive pump 4 is stopped in response to the release of the operation to stop the hot water from flowing out. In addition, the hot water switch 20 when setting the automatic mode
When the pressing operation is performed, the delay circuit in the microcomputer 28 holds the pressing operation state for the hot water switch 20 for a minute time, for example, 0.5 seconds, and then the electric pump 4 is driven to extract the hot water in the tank 2 for coffee. It flows out from the tap hole 7 in a suitable state.

In addition, on the front surface of the cover 11, a boiling indicator lamp 30 that lights up when the boiling water in the tank 2 is boiling, a warming indicator lamp 31 that lights when the temperature of the boiling water is kept warm, a timer display lamp 32 that lights when the timer operates, and the boiling water in the tank 2 Water supply indicator lamp 33, which lights up when water has decreased below a certain level to capture water supply,
Further, a plurality of extraction amount display lamps 34 ... Displaying the number of coffee extraction cups are provided.

When using the electric insulation pot configured in this manner, the upper lid 10 is opened to store water in the tank 2. This water is heated by the heater 3 and boiled, and after this boiling, 96
It is kept at a high temperature of about ℃.

In such a state, the manual mode switch 21 is pressed to set the manual mode, and in this state the hot water switch 20
When pressing with a fingertip, the electric pump 4 is driven and the hot water in the tank 2 continuously flows out from the hot water outlet 7 at a large flow rate (2000 to 3000 cc / min) while this operation is continued.

On the other hand, in the case of extracting coffee, as shown in FIG. 2 to FIG. 4, the heat insulation tray 15 is pulled out, the coffee bottle 16 is placed on the heat insulation tray 15, and the coffee bottle 16 is placed on the heat insulation tray 15. Set the dripper 17 on. Then, the automatic mode switch 22 is pressed. At this time, when the automatic mode switch 22 is pressed once, the extraction amount is set to 2 cups, and the extraction amount display lamp 34 of "2" lights up, and when it is pressed twice, the extraction amount is set to 3 cups. And, the extraction amount display lamp 34 of "3" lights up, and thereafter, every time the automatic mode switch 22 is pressed, the setting of the extraction amount is increased, whereby the amount of coffee to be extracted is increased by 2 to 5
The desired amount of the cup portion can be arbitrarily selected. By operating the automatic mode switch 22 as described above, the hot water discharge mode is set to the automatic mode.

Then, the hot water switch 20 is pressed with a fingertip. At this time, since the hot water discharge mode is the automatic mode, the electric pump 4 is driven by the control of the microcomputer 28 after the pressing operation on the hot water switch 20 is held for a minute time, that is, 0.5 seconds, and the hot water discharge port 7 is automatically operated. Hot water flows out as follows. That is, at first, a small amount of hot water that is squeezed so that the hot water permeates the coffee powder in the dripper 17 is dropped, and then the dropping is stopped for a few seconds, during which the coffee powder is steamed, and after this steaming, the dripper is dried. The hot water intermittently flows into the inside of 17 at a flow rate reduced to about half that in the manual mode. The outflow is stopped after the amount of hot water according to the selected number of cups has flowed out. This makes it possible to obtain a desired amount of coffee with a good taste.

In this way, the electric pump 4 does not operate unless the tapping switch 20 is kept pressed for a minute time (0.5 seconds) or more, so the tapping mode is set to the automatic mode and the tapping port 7 is set.
Under the condition that the coffee bottle 16 and the dripper 17 are not provided below the tap, even if the touch switch 20 is accidentally touched and pushed by mistake, There is no risk of hot water flowing out, thus avoiding the risk of accidental burns.

[Effect of the Invention] As described above, according to the present invention, there is a case where the hot water switch is accidentally touched and pressed almost instantaneously under the condition that the automatic mode is set. However, hot water does not inadvertently flow out from the hot water outlet, and therefore the risk of burns can be prevented and safety can be improved.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is a time chart, FIG. 2 is a configuration diagram of an electric insulation pot, FIG. 3 is a plan view of the same, and FIG. 4 is a partial front view of the same. The figure is a partially enlarged plan view of the same, and FIG. 6 is an electric circuit diagram. 2 ... Tank, 4 ... Electric pump, 7 ... Hot water outlet, 20 ... Hot water switch, 28 ... Microcomputer.

Claims (1)

[Scope of utility model registration request] 1. Hot water boiling in a tank is caused to flow out of a hot water outlet by the operation of an electric pump based on the operation of a hot water switch, and the hot water discharge mode is selectively set to a manual mode and an automatic mode. When setting the manual mode, the electric pump is driven only while the hot water switch is operated, and hot water continuously flows out from the hot water outlet.When the automatic mode is set, the trigger signal generated by operating the hot water switch is used. In the case where the electric pump is driven by the control of the microcomputer and the hot water whose flow rate is narrower than when set in the manual mode automatically flows out from the hot water outlet for a predetermined time,
An electric warming pot, characterized in that a delay means is provided to start driving of the electric pump after the operation of the hot water switch is held for a minute time when the automatic mode is set.