JPH02280729A - Electrical heat insulating pot - Google Patents

Abstract

PURPOSE:To supply the hot water which is boiling-sterilization-treated and in a proper temperature state by installing a judging means for judging if a hot water temperature sensor detects the set within a proper temperature range when the hot water temperature in a container is detected and installing a control means for operating a motor-driven device by the operation of a hot water supply switch. CONSTITUTION:When water 2 is introduced into a container 1, and water heating operation is started, a boiling lamp 10 is turned ON, and a boiling heater 25 is turned ON, and the water 2 in the container 1 is heated, and temperature rises. The water in the container 1 is boiled, and the hot water having a proper state is formed and the temperature is kept. In this state, a boiling flag is turned OFF, and since a hot water temperature sensor 3 detects the proper temperature state of the hot water, an electric motor device 4 is operated when a hot water supply switch 9 is operated, and the hot water having a proper temperature is supplied. When the quantity of the hot water 2 in the container 1 reduces through use, and the supplement of water is required, the how water temperature lowers. When the hot water temperature lowers outside a proper temperature range, the operation of the motor- driven device 4 is prohibited, even if the hot water supply switch 9 is operated, since the hot water temperature sensor 3 detects the state, and the supply of the hot water in the container is prevented.

Description

[Detailed description of the invention] [Industrial application fields] The present invention relates to an electric heating pot.

[Prior Art] When the hot water tap switch of a conventional electric heating pot is operated, an electric device is operated to tap the hot water in the container regardless of the water temperature. Therefore, even if water was added and the temperature of the hot water in the container dropped below the appropriate temperature, hot water could be released at any time by operating the hot water tap switch.

[Problem to be Solved by the Invention] [81 However, with this type of device, there is a problem in that even when it is necessary to pour hot water at an appropriate temperature, hot water at a low temperature may be poured by mistake. In addition, there was a risk of unboiled water being released, which caused problems in terms of sterilization.

Therefore, the present invention aims to provide an electric heat-retaining pot that can dispense hot water only when the water is once boiled and at an appropriate temperature, and therefore can always supply boiling sterilized hot water at an appropriate temperature.

[Means for Solving the Problems] The present invention provides an electric heating pot that once boils water in the container and then keeps it at an appropriate temperature. A hot water temperature sensor that detects hot water, a hot water tap switch that instructs hot water to be drawn, a judgment means that determines whether or not the hot water temperature sensor detects a temperature within the appropriate temperature range when the hot water tap switch is operated, and this judgment means. A control means is provided for operating the electric device by operating the hot water tap switch only when it is determined that the temperature is within the appropriate temperature range.

[Function] In the present invention having such a configuration, the electric device operates to dispense hot water only when the hot water in the container is once boiled and reaches an appropriate temperature when the hot water tap switch is operated. Therefore, if water is added and the temperature of the hot water has decreased, hot water will not be released even if the hot water tap switch is operated. In this case, it is necessary to boil the water once to bring it to the appropriate temperature.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

Figure 1 shows the configuration of the electric heating pot.
3 is a hot water temperature sensor that detects the temperature of hot water in the container 1; 4 is a container for discharging the hot water 2 in the container 1 to the outside via a hot water tap vibrator 5; The electric device, 6 is a circuit box containing circuit components, and 7 is a boiling sensor that detects boiling by detecting the generation of steam. These are housed in a housing 8 shown by dotted lines in FIG.

A hot water tap switch 9, a boiling lamp 10, and a suitable temperature lamp 11 are installed near the hot water tap portion of the housing 8, respectively.

FIG. 2 is a block diagram showing the circuit configuration, and numeral 21 is a micro combinator which constitutes the main body of the control section. One end of the hot water tap switch 7 is connected to an input port IN of the microcomputer 21. The other end of this hot water tap switch 7 is connected to the +VCC terminal.

Further, the connection point between the water temperature sensor 3 and the resistor 22 and the connection point between the boiling sensor 7 and the resistor 23 are connected to A/B of the microcomputer 21, respectively. There is.

The other end of each of the sensors 3.7 is connected to the +VCC terminal, and the other end of each of the resistors 22.23 is grounded.

Also, the output of the microcomputer 21) OUT
+, 0UT2.0UTi are connected to an electric device drive circuit 24 that drives the electric device 4, a boiling heater drive circuit 26 that drives the boiling heater 25, and a heat retention heater drive circuit 28 that drives the heat retention heater 27, respectively.

Furthermore, the output of the microcomputer 21) OU
The boiling lamp 10 and the appropriate temperature lamp 11 are connected between T4.0UTs and the +VCC terminal, respectively.

The microcomputer 21 is configured to perform hot water temperature management processing shown in FIG. 3 and hot water tap switch processing shown in FIG. 4 based on a program set therein.

The hot water temperature management process is carried out at the input port A as shown in FIG.
A hot water temperature sensor manually checks whether the hot water temperature in the container 1 is above an appropriate temperature, for example within the appropriate temperature range of 94 to 96°C.

If the temperature is within the appropriate temperature range, the appropriate temperature lamp 11 is turned on. Also, if there are no people in the appropriate temperature range, boiling lamp 10
ONL, and controls the boiling heater drive circuit 26 to turn on the boiling heater 27. Also, turn on the boiling flag.

In this state, input from input port B is monitored to check whether boiling sensor 7 has detected boiling. When the boiling sensor 7 detects boiling, this state is maintained for a certain period of time, and then the boiling heater 27 is turned off and the boiling flag is turned off. Also, the boiling lamp 10 is turned off and the appropriate temperature lamp 11 is turned on. In addition, in this state, keep warm 2-
It will be turned on on the 27th.

In addition, in the hot water tap switch process, as shown in FIG. 4, when this switch is operated, first it is checked whether the boiling flag is ON or not. If the boiling flag is ON, it is determined that the water is boiling, and the process is immediately terminated.

Further, if the boiling flag is not turned on, then it is checked by input from input port A whether or not the water temperature sensor 3 detects that the temperature is within the appropriate temperature range.

(Determination means) If the temperature is not detected within the appropriate temperature range, the process is immediately terminated. Further, if the temperature is detected to be within the appropriate temperature range, the electric device drive circuit 24 is controlled to drive the electric device 4. (Control Means) In this embodiment having such a configuration, when water 2 is put into the container 1 and the water boiling operation is started, the boiling lamp 10 is turned on, the boiling heater 25 is turned on, and the water boiling operation is started. Ru. In this way, the water 2 in the container 1 is heated and its temperature increases.

During this water boiling operation, the boiling flag is ONL, so the hot water tap switch 9 cannot be operated.

In this way, the water in the container 1 will eventually boil and become hot water at an appropriate temperature to be kept warm.

In this state, the boiling flag is OFF and the hot water temperature sensor 3 is detecting the appropriate temperature of the hot water, so the hot water tap switch 9
When operated, the electric device 4 operates and hot water at an appropriate temperature is discharged.

In this way, the hot water 2 in the container 1 is used and becomes less, so that when water is added to the container 1, the temperature of the hot water decreases. When the hot water temperature falls outside of the appropriate temperature range, the hot water temperature sensor 3 detects this condition. It will never be released.

After that, the hot water in the container is once boiled by the operation of the boiling heater 25 and reaches an appropriate temperature, and then it becomes possible to dispense hot water again by operating the hot water dispensing switch 9.

In this way, hot water can be dispensed by operating the hot water dispenser switch 9 only when the temperature of the hot water 2 in the container 1 is within the appropriate temperature range, so hot water at an appropriate temperature can always be supplied. Therefore, mistakes such as accidentally supplying low-temperature hot water will not occur.

In addition, since the hot water in the container is always boiled and reaches an appropriate temperature before it can be dispensed, sterilized hot water can always be supplied.

[Effects of the Invention] As detailed above, according to the present invention, it is possible to dispense hot water only when the water is once boiled and the temperature is at an appropriate temperature, and therefore, the electricity is capable of always supplying hot water that has been sterilized by boiling and is at an appropriate temperature. It can provide a heat-retaining pot.

[Brief explanation of drawings]

The figure shows an embodiment of the present invention, 11'! FIG. 1 is a schematic diagram showing the configuration of the pot, FIG. 2 is a block diagram showing the circuit configuration, and FIGS. 3 and 4 are flowcharts showing main processing by a microcomputer. DESCRIPTION OF SYMBOLS 1... Container, 2... Hot water, 3... Hot water temperature sensor, 4... Electric device, 7... Boiling sensor 9... Hot water tap switch, 21... Microcomputer, 25... - Boiling heater, 27... heat retention heater. Applicant's agent Patent attorney Takehiko Suzue Figure jI4

Claims (1)

[Claims] An electric heating pot that once boils water in a container and then keeps it at an appropriate temperature, an electric device that dispenses hot water in the container, a hot water temperature sensor that detects the temperature of the hot water in the container;
A hot water tap switch that instructs hot water to be tapped; a determining means that determines whether the hot water temperature sensor detects that the temperature is within the appropriate temperature range when the hot water tap switch is operated; and a determining means that determines whether the temperature is within the appropriate temperature range. An electric heat-retaining pot characterized in that it is provided with a control means for operating the electric device only when the hot water tap switch is operated.