JPS61146263A - Sauna with preheating completion alarm - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a sauna that is used at home and has a preheating completion notification for notifying that the preheating operation has been completed.

2. Description of the Related Art In a conventional sauna, a series circuit of a variable thermostat 2 and a heater 3 is connected to an AC power source 4 by operating a motor timer 1 to close the contacts as shown in FIG. Neon tube 6 connected to both ends of heater 3
The configuration was such that the power supply status to Nyorihi-ri 3 was displayed.

Problems to be solved by the invention In such conventional saunas, when taking a sauna bath,
When a preheating operation is performed to raise the temperature inside the case without anyone removing it, it is not clear when the preheating operation 3 is completed. This is because the only way to know the energization state of the heater 3 is by checking the lighting state of the neon tube 5. Although preheating is completed when the neon tube 6 turns off for the first time, the temperature of the heater 3 is controlled. If you miss the moment when heater 3 is off, you will have to wait until the next time heater 3 turns off.

The present invention solves these problems and aims to provide a sauna with a preheating completion notification that can reliably notify that the preheating operation has been completed.

Means for Solving the Problems In order to solve the above problems, the present invention provides a preheating start switch provided on the outside of the housing, and a first latch means for remembering that the preheating start switch has been operated. , this first
The latch means outputs a buzzer which is activated by the output of the latch means to notify that the preheating operation has been completed.

Effect With the above configuration, when the preheating start switch is pressed to start the preheating operation, when the predetermined temperature is reached and the heater is turned off,
Since the buzzer sounds only once for a predetermined period of time, the user can be notified of the completion of preheating.

Embodiment Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings. FIG. 1 shows a block diagram in one embodiment of the present invention. In FIG. 1, a preheating start switch 1
1, the first latch means 12 operates. When an output is output from this first latch means 12, the output of the temperature setting switch 13 can be transmitted to the clock pulse of the ring counter 14. A plurality of temperature setting resistors 15 are connected to the output of this ring counter 14, and each time the temperature setting switch 13 is pressed, the output of the ring counter 14 is shifted, and the user selects the resistance value corresponding to the desired temperature. be able to. A comparator 17 is provided to compare the temperature setting resistor 5 and the negative characteristic thermistor 16 that detects the temperature inside the sauna housing. When the user is in the sauna, the heater energization control means 18 is activated to turn on the heater for raising the temperature in the bathroom of the sauna. Further, when the first latch means 12 is outputting, the comparator 17
When the output no longer appears, the second latch means 19 operates. When the second latch means 19 outputs an output, a timer 2o that outputs an output for a predetermined period of time operates, and at the same time, a buzzer 21 connected to the timer 20 sounds to notify that the preheating operation has been completed only once for a predetermined period of time.

FIG. 2 shows a specific circuit diagram of a sauna according to an embodiment of the present invention, and the same parts as in FIG. 1 are given the same numbers and explanations are omitted.

When the preheating start switch 11 for starting the preheating operation is closed, the connection point of the resistors 31 and 32 becomes the anode, and the connection point of the resistor 33 becomes the anode.
・The progera 6"-2" Mable junction transistor (hereinafter referred to as PUT) 12, which is the first latch means and whose connection point 34 is connected to the gate, is turned on. When this PUT 12 is turned on,
By closing the temperature setting switch 13, the resistance 35.
A pulse is applied to the clock input of the ring counter 14 via 36, causing the output to shift by one in sequence. This is because when PUT 12 turns on, transistor 37 turns off, opens both ends of resistor 36, and stops shorting the clock pulse of ring counter 14.

A comparator 1 that compares a negative characteristic thermistor 16 and resistors 38 and 39 by selecting a desired resistance value of a plurality of temperature setting resistors 15 connected to the output of a ring counter 14.
7 becomes operational and the temperature in the sauna bathroom is low, the output of the comparator 17 becomes High, turning on the transistor 41 via the resistor 4o. As a result, the relay 42 is driven and the heater 43 is energized to heat the inside of the sauna bathroom. At this time, since the emitter of the transistor 41 is connected to the gate of the PUT 12 via the diode 44, the heater 7 vane 43 is not energized unless the PUT 12 is turned on.

Since the output of the comparator 17 is connected to the gate of the PUT 19, which is the second latch means, through the capacitor 45, the output of the comparator 17 changes from High to Low.
Instead, when PUT 12 is turned on via diode 46 connected to the cathode, PUT 19 is turned on. When this PUT 19 is turned on, the transistor 48 is turned on via the resistor 47, and charging of the capacitor 5° via the resistor 49 is started. and capacitor 5o
Since the output of the comparator 53 that compares the potential of the resistors 51 and 52 is Low for a predetermined time, a voltage is applied to both ends of the buzzer 210 during this time to notify the completion of the preheating operation. Once the PUT 19 is latched, the latch is not released even if the output of the comparator 17 changes from High to Low again, so the timer 2o never operates again, and therefore the buzzer 21 only sounds once after preheating is completed.

Effects of the Invention As described above, according to the present invention, by simply pressing the preheating start switch, the buzzer will sound when preheating is complete, even if the sauna is not constantly looking at the energization display, thereby accurately notifying the user. It is something that can be done.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a sauna with preheating completion notification showing an embodiment of the present invention, FIG. 2 is a specific circuit diagram of the same sauna, and FIG. 3 is a circuit diagram showing a conventional example. DESCRIPTION OF SYMBOLS 11--One heat start switch, 12--First latch means, 13--Temperature setting switch, 14--Ring counter, 15--Temperature setting resistor, 16--Negative characteristic Thermistor, 17...Comparator, 18...Heater energization control means, 19...-Second latch means, 20-
1--Timer, 21--Buzzer.

Claims (1)

[Claims] A preheating start switch provided on the outside of the casing, a first latch means that remembers that the preheating start switch has been operated, and an output of the first latch means that enables the operation and is performed within the sauna bathroom. A temperature setting switch for varying the set temperature of the sauna bathroom, a ring counter that uses the output of this temperature setting switch as a clock pulse input, and a plurality of temperature setting resistors connected to the plurality of outputs of this ring counter. a negative characteristic thermistor that detects the temperature of
A comparator that compares the resistance value of this negative characteristic thermistor with the temperature setting resistor and outputs an output when the temperature in the bathroom is low, and the output of this comparator and the first latch means are input, and the inside of the sauna bathroom is heater energization control means for controlling energization to the heater; second latch means for storing that the output of the comparator is no longer output only when the first latch means is operating; A sauna with preheating completion notification, comprising: a timer that operates for a predetermined period of time based on the output of a latch means; and a buzzer that operates based on the output of the timer to notify that the preheating operation has been completed.