JPH0222666B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a sauna bath device that heats the interior of a sauna room using a heating source.

(B) Prior art As disclosed in publications such as Utility Model Publication No. 52-44212 and Utility Model Publication No. 56-21390, the user has to turn on the power switch before taking a sauna bath. The sauna room was heated in advance with a heat source device such as a heater to raise the temperature inside the sauna room before taking a bath, but due to the elapsed time from turning on the power switch until the user entered the sauna room. There were problems in that the temperature in the sauna room did not rise sufficiently, and the heating source in the sauna room heated the sauna room for a longer time than necessary.

(c) Purpose of the Invention The present invention has been made in view of the above-mentioned facts, and aims to prevent the time from the user turning on the power to entering the sauna room to be too early or too late. The purpose of this invention is to eliminate user discomfort and waste of heating sources, and to improve usability.

(d) Structure of the Invention The present invention provides a sauna bath device that heats the sauna room with a heating source when the power is turned on, including a detector that detects the temperature inside the sauna room;
A heating source control means that compares the temperature detected by the detector with a set temperature and controls the heat source so that the temperature in the sauna room reaches the set temperature, and compares the detected temperature of the detector with a reference temperature; A notification means for notifying that it is possible to take a bath when the temperature in the sauna room becomes equal to or higher than a reference temperature; a timer for setting the bath time at the time of taking a bath and stopping the heating of the sauna room by the heating source after the set time; a sauna interior light that turns on when the sauna is set; and a notification means that notifies the user that the bath is finished after the set time of the timer has elapsed;
Similarly, it is configured to include a delay means for turning off the indoor light after a predetermined period of time after the elapse of the set time of the timer.

(E) Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 6. Further, in an embodiment of the present invention to be described below, a sauna apparatus using hot water as a heating source will be described.

FIG. 1 is an external view of the sauna bath device of the present invention.
A pipe 3 for circulating hot water is built into the side panels 1, 1 and the back panel 2, etc. Although not shown, the pipe 3 supplies hot water heated to high temperature by a heating source (such as a boiler).
A solenoid valve 4 is provided on the outgoing hot water pipe 3a that supplies hot water to the sauna, and the temperature inside the sauna room is adjusted by opening and closing the solenoid valve 4. In addition, the solenoid valve 4
When the magnet is energized, the built-in valve is closed to stop supplying hot water to the pipe 3, and when it is demagnetized, the built-in valve is opened to supply hot water to the pipe 3. ing.

5 is a front door for entering and exiting the sauna room, and the front door 5
is opened and closed by a handle 6. 7 is a window provided at the top of the front door 5. 8 is a control board for controlling the sauna bath apparatus of the present invention, which will be described later.

Next, the control circuit for controlling the sauna bath apparatus of the present invention will be explained based on the drawings in FIGS. A power switch 10 is connected in series to one power line 9a. Reference numeral 11 denotes a power lamp connected between the power lines 9a and 9b, which lights up when the power switch 10 is turned on to notify the user that the power source 9 is turned on.

12 is a timer motor that sets the time for the user to bathe (enter) the sauna room, and the timer motor 12 has a first relay that is opened and closed by a first relay 13, which will be described later, between the power lines 9a and 9b. It is connected in parallel to the power lamp 11 via a switch 13a. 14 is an indoor light provided in the sauna room, and this indoor light 14 is connected to a second relay 15 which will be described later.
The power supply lines 9a and 9b are connected through a second relay switch 15a which is opened and closed by the power supply lines 9a and 9b. The solenoid valve 4 is a solenoid valve that circulates hot water supplied from a heating source when it is open (when not energized) and stops when it is closed (when it is energized). It is connected between the power lines 9a and 9b via a third relay switch 17a which is opened and closed by a relay 17.

18 is a transformer that steps down the voltage of the power source 9. 19 is a control circuit to be described later, and a rectifier circuit 20
The first to third relay switches 13a, 15a, 17 are powered by DC voltage supplied from
This is to control a.

FIG. 3 is a detailed diagram of the control circuit 19 described above.
1a is the DC voltage output from the rectifier circuit 20
This is the V _DD line (hereinafter referred to as the power supply line). Further, the other output line 21b of the rectifier circuit 20
is connected to ground.

22 is a first comparator, the non-inverting input terminal 23 is connected to the power supply line 21a via a resistor 24, and the connection point A is grounded via a resistor 25; It is connected to the output terminal of the comparator 22 via 26. Further, the inverting input terminal 27 of the comparator 22 is connected to the power supply line 21a via a resistor 28, and the connection point ``B'' is connected to ground via a room thermistor 29 whose internal resistance value changes depending on the sauna room temperature. ing.

30 is a second comparator, which has a non-inverting input terminal 31 connected to the connection point RO and an inverting input terminal 32.
is connected to the power supply line 21a via a resistor 33. Further, the connection point C is connected to earth via a variable resistor (volume) 34 and a resistor 35 for setting the room temperature by the user. Furthermore, the connection point C is connected to the output end of the comparator 30 via a resistor 36. Furthermore, the output terminal of the comparator 30 is connected to a resistor 3.
7, a NOT element 38, and a resistor 39, and the base of the first transistor 40. The collector of the first transistor 40 is connected to the power supply line 21a via a third relay 17 that opens and closes a third relay switch 17a, and the emitter is connected to ground.

41 is a third comparator, and a non-inverting input terminal 42 of the comparator 41 is connected to the power supply line 21 via a resistor 43.
a, the connection point 2 is connected to ground through a resistor 44, and the connection point 2 is connected to the output end of the comparator 41 through a resistor 45. The inverting input terminal 46 of the comparator 41 is connected to ground via a resistor 47, and the connection point H is connected to the diode 4.
It is connected to the power supply line 21a via 8. Further, the connection point E is connected to ground through a capacitor 49, and is also connected to the power supply line 21a through a series circuit of a diode 50, a buffer 51, a resistor 52, a capacitor 53, and a resistor 54. 55
is a resistor whose one end is connected to the connection point between the diode 50 and the buffer 51, and whose other end is connected to ground. Further, the connection point between the resistor 54 and the capacitor 53 is grounded via a resistor 110.

56 is a second transistor whose base is connected in series with the output terminal of the third comparator 41 via a resistor 57 and a NOT element 58; the collector of the transistor 56 is connected to the second relay switch 1;
It is connected to the power supply line 21a via a second relay 15 that opens and closes the emitter 5a, and the emitter is grounded.

The output terminal of the first comparator 22 is connected to the NOT element 5.
9, a resistor 60, and a capacitor 61, it is connected to the connection point of the capacitor 53 and resistor 54. Further, this connection point is connected to ground via a NOT element 62, a diode 63, and resistors 64 and 65.

66 is a timer switch that will be closed when the operation knob 67 is turned toward the timer side, which will be described later. One end is connected to the power supply line 21a, and the other end is connected to the resistor 6.
The connection point G is connected to the connection point N between the diode 50 and the buffer 51 via a buffer 70 and a resistor 71. Further, a connection point between the buffer 70 and the resistor 71 is connected to a third transistor 73 via a resistor 72.
The connection point is connected to the base of the diode 74, the resistor 75, the buffer 76, and the NOT element 7.
7. The resistor 37 via the diode 78
It is connected to the connection point ri with the NOT element 38. Furthermore, the connection point between the diode 74 and the resistor 75 is connected to ground via a resistor 79. A first relay 13 for opening and closing a first relay switch 13a is connected to the collector of the third transistor 73.
and the emitter is connected to ground.

80 is a preheating switch, one end of which is connected to the power line 21
a, and the other end is connected to ground via resistors 81 and 82, and the connection point is connected to buffer 83.
and a diode 84 to the connection point No.

85 is a fourth comparator, a non-inverting input terminal 86 is connected to the power supply line 21a via a resistor 87, and a connection point O between the non-inverting input terminal 86 and the resistor 87 is connected to ground via a resistor 88. , the connection point O is connected to the output end of the comparator 85 via a resistor 89. Further, an inverting input terminal 90 of the comparator 85 is connected to ground via a capacitor 91 and to an output terminal via a resistor 92. The fourth comparator 85 and capacitor 91
and resistors 87, 88, 89, and 92 to form an oscillation circuit 93.
It consists of

94 is a fourth transistor that supplies and stops power to a buzzer 95, which will be described later, and its base is connected to the fourth transistor.
The output terminal of the comparator 93 and the resistors 96 and 97 are connected to each other. Also, the collector has resistances of 99 and 98
It is connected to the power supply line 21a and one input end 95a of the buzzer 95 via the power supply line 21a.

Reference numeral 100 designates a fifth transistor for driving the buzzer 95, the base of which is connected to the collector of the fourth transistor 94 via a resistor 101. The collector is connected to the input side 9 at the other end of the buzzer 95.
5b and to the connection point W between the resistors 98 and 99 via the resistor 102, and the emitter is connected to the ground side 95c of the buzzer 95 and is grounded. Furthermore, the ground side 9
The connection point between 5c and the emitter is diode 10.
3 to a connection point between the collector of the fourth transistor 94 and a resistor 99.

The connection point between the resistors 96 and 97 is the diode 1.
04 and the NOT element 105.
and the resistor 65 are connected in series to the connection point LE, and
The connection point L is connected to ground via a capacitor 106, and the connection point L is connected to the power supply line 21a via a diode 107 and a resistor 108. Further, the connection point S between the diode 107 and the resistor 108 is connected to ground via a resistor 109.

FIG. 4 is an enlarged view of the control board 8, 111
112 is a room temperature adjustment knob that changes the resistance value of the variable resistor 34; 67 is an operation knob that controls opening and closing of the preheating switch 80 and the timer switch 66;
When the power switch 10 is closed by the operation knob 111 and the preheat switch 80 or the timer switch 66 is closed by the operation knob 67, a heating source such as a hot water boiler (not shown) is operated.

The present invention has the above-mentioned configuration, and the operation of bringing the temperature inside the sauna room to a temperature suitable for bathing will be described below.

As shown in FIG. 5, by setting the operating knob 111 to the on position A, the power lamp 11 is turned on (not shown). Then, when the operating knob 67 is set to the preheating position B, the preheating switch 80 is closed. When the preheating switch 80 is closed, the DC power supply V _DD (hereinafter referred to as power supply V _DD ) of the power supply line 21a is input to the NOT element 77 via the resistor 81, buffer 83, diode 84, resistor 75, and buffer 76. and fixes the output of the NOT element 77 to a low level.

On the other hand, the non-inverting input terminal 31 of the second comparator 30 is powered by a resistor 28 and a room thermistor 29.
A divided potential of V _DD is input, and a resistor 33, a variable resistor 34, and a resistor 3 are connected to the non-inverting input terminal 32.
The divided potential of the power supply V _DD by the combined resistance value of 5 is input. The resistance value of the room thermistor 29 decreases as the temperature rises, and since the temperature inside the sauna room is low when the preheating switch 80 is closed, the internal resistance value of the room thermistor 29 is large and the non-inverting input terminal 31 has a large internal resistance value. A high level potential is input. Therefore, the second comparator 30
outputs a high level, and the high level is connected to the resistor 37.
The signal is input to the NOT element 38 via. Therefore, since the NOT element 38 is outputting a low level, the first transistor 40 is rendered non-conductive.
Excitation of the third relay 17 does not stop the circulation of hot water.

Furthermore, the oscillation circuit 93 starts oscillating when the power switch 10 is turned on (closed), but the NOT element 6
Since the divided potential (high level) of the power supply V _DD by the resistor 54 and resistor 110 is input to the input side of 2, the output of the NOT element 62 is fixed at low level. The input side of the connected NOT element 105 is also fixed at low level. Therefore, the NOT element 105
continues to output high level. Therefore, the oscillation from the oscillation circuit 93 is passed through the resistor 96 at the connection point T, and is combined with the high level output from the NOT element 105 via the diode 104 as described above.
7 to the base of the fourth transistor 94, so that the fourth transistor 9
4 is conductive, and the power supply V _DD is energized to the ground via resistors 98 and 99, so that the buzzer 95 does not generate an alarm sound.

Furthermore, the non-inverting input terminal 23 of the first comparator 22
The divided potential of the power supply _VDD by the resistor 24 and the resistor 25 is input to the inverting input terminal 27, and the resistor 28 and the room thermistor 29, which are input to the inverting input terminal 31 of the second comparator 30, are input to the inverting input terminal 27. The divided potential of the power supply V _DD due to
It is converted to a high level by the NOT element 59 and is passed through the resistor 60 and capacitor 61 as described above.
Since it is connected to the connection point on the input side of the NOT element 62, it does not affect other lines.

When the temperature inside the sauna room increases, the internal resistance value of the room thermistor 29 decreases, and the voltage level at the inverting input terminal 27 of the first comparator 22 falls below the voltage level at the non-inverting input terminal 23. The output of the comparator 22 is inverted to output a high level, but is inverted by the NOT element 59 and converted to a low level. Therefore, a high level is drawn into the connection point via the differential circuit made up of the resistor 60 and the capacitor 61 for a predetermined period of time (that is, when the potential at one end of the capacitor 61 drops, the potential at the other end is drawn in by the amount of the drop). Due to the charging action, the charging time is determined by the resistance 60 and the capacitor 61.
) Therefore, the potential on the input side of the NOT element 62 is determined by the capacitance of the capacitor 61.
becomes low level for charging time (predetermined time),
The NOT element 62 outputs a high level for a predetermined period of time. Further, the output high level charges the capacitor 106 via the diode 63 and the resistor 64, and the high level from the time when the charging of the capacitor 106 is completed is charged to the diode 107.
The current is applied to the ground via the resistor 109.

Therefore, a high level is input to the input side of the NOT element 105 for a predetermined time (discharging time of the high level of the capacitor 105) by discharging the charge of the capacitor 106, and the predetermined level is input to the input side of the NOT element 105. At this time, the output of the NOT element 105 becomes low level. Therefore, the oscillation voltage output from the oscillation circuit 93 is intermittently input to the base of the fourth transistor 94 via resistors 96 and 97 for switching, and when the transistor 94 is non-conductive, the power supply V _DD is connected to the resistor. 98, 99, and 101 to the base of the fifth transistor 100, and when the transistor 100 is turned on, the power supply is
V _DD is energized through resistors 98 and 102, and is connected to one input side 95a and the other input side 95 of the buzzer 95.
The buzzer 95 generates an alarm sound due to the potential difference generated between the ground side 95c and the ground side 95c, and the buzzer 95 generates an intermittent sound when the fourth transistor 100 is switched.

As mentioned above, when the temperature in the sauna room reaches the standard set temperature, the buzzer 95 generates an intermittent sound for a predetermined period of time to notify the user that it is possible to take a bath.

Next, when the user sets the operation knob 67 to "1" for an arbitrary time as shown in FIG.
The timer switch 66 opens after 10 minutes. In addition, the user can control the operation knob 6 at any time.
7, the preheating switch 80 is opened and the timer switch 66 is closed, so that the divided potential of the power supply V _DD by the resistors 68 and 69 is applied to the third transistor 7 via the buffer 70.
3, the transistor 73 is made conductive, and the first relay 13 is energized. Therefore, the first
The relay switch 13a is closed and the power supply 9 is energized to the timer motor 12.

Further, the inverting input terminal 32 of the second comparator 30 is connected to a power source V _DD by the user and the combined resistance of the variable resistor 34 and the resistor 35 whose resistance value changes according to the rotation of the temperature control knob 112 and the resistor 33. The divided potentials are input. Furthermore, as described above, when the temperature inside the sauna room reaches the temperature set by the user, a low level is input to the non-inverting input terminal 31 due to the decrease in the resistance value of the room thermistor 29.
outputs low level. Therefore, the NOT element 38 connected through the resistor 37 outputs a high level, and the high level is inputted to the base of the first transistor 40 through the resistor 39, making the first transistor 40 conductive. Therefore, the third relay 17
is energized, the third relay switch 17a is closed, and the solenoid valve 4 is energized, thereby stopping the circulation of high-temperature hot water supplied from a heating source (not shown) and increasing the indoor temperature. prevent. Further, when the temperature inside the sauna room decreases by stopping the circulation of the hot water supplied from the heating source, the internal resistance value of the room thermistor 29 increases, and the inverting input terminal of the second comparator increases. The voltage level at the non-inverting side input terminal 31 rises higher than that at the non-inverting input terminal 32, and the output of the comparator 30 becomes a high level, which is converted to a low level by the NOT element 38 via the resistor 37. The first transistor 40 connected through the terminal becomes non-conductive and the third relay 1
7, the third relay switch 17a is opened and stops energizing the solenoid valve 4, thus reducing the temperature in the sauna room by circulating hot water supplied from a heating source (not shown). This will increase the

Therefore, the variable resistor 34 is connected to the temperature control knob 1.
The temperature desired by the user is maintained by repeating the above-mentioned operation by setting the temperature arbitrarily by rotating the temperature sensor 12.

Furthermore, by turning on the timer switch 66 (setting the bathing time), the divided potential of the power supply V _DD by the resistors 68 and 69 is applied to the inverting input terminal 46 of the third comparator 41, and the potential is applied to the buffer 70, the resistor 71, and the diode. 50 and charges the capacitor 49. Further, a potential divided from the power supply V _DD by resistors 43 and 44 is applied to the non-inverting input terminal 42 of the comparator 41 . Therefore, the comparator 41 outputs a low level, which is converted to a high level by the NOT element 58 and applied to the base of the second transistor 56 via the resistor 57. Therefore, the transistor 56 becomes conductive and energizes the second relay 15, so that the second relay switch 15
A is closed and the power supply 9 is turned on to the indoor light 14, turning it on.

Next, a description will be given of what happens after the set time of the timer motor 12 has elapsed. When the user sets the bathing time and the bathing time has elapsed, the timer switch 66 opens and the third transistor 73 becomes non-conductive, so the first relay 13 is demagnetized and the first relay switch 13a is turned off. will be released. Also, since the high level output of the NOT element 77 is input to the NOT element 38 via the diode 78,
The output of the NOT element 38 is set to low level and the first
The third relay 17 is demagnetized by making the transistor 40 non-conductive. Therefore, the third relay switch 17a is opened and the energization to the solenoid valve 4 is stopped. Furthermore, the inverting input terminal 4 of the third comparator 41
6, the non-inverting input terminal 4 is discharged due to the discharge of the charge in the capacitor 49 that has been charged by the high level input from the timer switch 66.
Since the voltage level of the inverting input terminal 46 is higher than the voltage level of the inverting input terminal 2 for a predetermined time (the high level holding time of the capacitor 49), the comparator 41 outputs a low level, and the low level is converted to a high level by the NOT element 58. and the second transistor 56
is conductive, but after the capacitor 49 is discharged, the output of the third comparator 41 is inverted to high level.
Therefore, it is converted to a low level by the NOT element 58 and makes the second transistor 56 non-conductive, so that the second relay 15 is also demagnetized and the second relay switch 15a is opened to switch the interior light 14 to the timer switch 66. The light is turned off after a predetermined time (the high level holding time of the capacitor 49) after opening.

When the timer switch 66 is opened, the potential at one end of the capacitor 53 drops, so that the high level at the other end is maintained at a high level for a predetermined period of time by a differentiating circuit constituted by the resistor 52 and the capacitor 53. Pull in. Therefore, since the input side of the NOT element 62 is kept at a low level for a predetermined period of time (the time until the charging of the capacitor 53 is completed), the high level output from the NOT element 62 causes the voltage to flow through the diode 63 and the resistor 64 as described above. The capacitor 106 is then charged. Therefore, the capacitor 53
When the charging of the capacitor 1 is completed, the output of the NOT element 62 also becomes low level.
06 completes charging. Further, even if the high level of the NOT element 62 is reversed to the low level, the high level voltage charged in the capacitor 106 is blocked by the diode 63, so the NOT
The output of the NOT element 105 is converted from high level to low level, and the buzzer 95 generates an alarm sound as described above by the intermittent oscillation voltage output from the oscillation circuit 93. It is generated for the level holding time and notifies the user of the end of the timer time (end of bathing time).

The sauna bath apparatus of the present invention is as described above, and by switching the operation knob 67 to the preheating side B, the heating source (not shown) is operated to start heating the sauna room, and the temperature in the sauna room is set to the standard value. When the temperature rises, a notification means such as a buzzer 95 notifies the user of the completion of preheating, and the operation knob 6
By setting 7 to an arbitrary timer time (bath time), the indoor light 14 in the sauna room is turned on, the sauna room is maintained at the user's desired temperature, and furthermore, the buzzer 9 is activated when the set time has elapsed.
The end of the timer time (bathing time) is notified to the user by a notification means such as 5, etc., and the indoor light 14 is turned off a predetermined time after the timer time (bathing time) ends. With simple operations, you can take a sauna bath, and
Since the end of the preheating time can be known by a notification means such as the buzzer 95, there is no need for wasteful power consumption such as taking a bath after a considerable amount of time has elapsed as in the conventional case. Furthermore, since the interior light 14 and the timer switch 66 are linked, it is possible to prevent forgetting to turn off the interior light 14, and the interior light 14 is turned off with a delay from the end of the timer time (bath time). Because of this structure, when the user continues to take a bath (to extend the bathing time), the user only has to open the window 7 of the front door 5 from inside the sauna room and operate the operation knob 67, making it easy to use. is good and practical.

Further, although an embodiment of the sauna bath apparatus of the present invention has been described using hot water as the heating source, the present invention is not limited to this, and the heating source may be a heater that generates far infrared rays or the like. It may be a heater that only heats the room.

Further, in one embodiment of the present invention, a buzzer 95 is used as the notification means, but visual notification means such as a light emitting element such as an LED may also be used.

Furthermore, in one embodiment of the present invention, the oscillation circuit 93
Although the buzzer 95 generates the alarm sound intermittently by providing the oscillation circuit 93, the alarm sound may be continuously generated without providing the oscillation circuit 93.

(F) Effects of the Invention The present invention is as described above, and the sauna room is heated by turning on the power, and the temperature in the sauna room is maintained at a set temperature by the heating source control means. , when the temperature in the sauna room rises to the standard temperature, the user is notified of the completion of preheating by the notification means, and the room light is turned on by setting the bathing time with a timer, When the timer time (bath time) has elapsed, the heating in the sauna room is stopped, and the notification means notifies the user that the bath time has elapsed, and the timer time (bath time) is delayed by a predetermined time from the end of the timer time (bath time). Since the sauna is configured so that the indoor lights are turned off, the user can start taking a bath immediately after the temperature inside the sauna reaches the appropriate temperature. It is economical and extremely easy to use, as it prevents the heating source from being wasted due to overheating, prevents the heating source and indoor light from being left on, and allows you to extend the bathing time as needed. It is possible to provide sauna bath equipment.

[Brief explanation of drawings]

1 to 6 are diagrams explaining one embodiment of the present invention, in which FIG. 1 is a partially cutaway external perspective view of a sauna bath device, FIG. 2 is an electric circuit diagram, and FIG. Detailed views of the main parts in the figure and FIGS. 4 to 6 are enlarged views of the control board. 4...Solenoid valve, 12...Timer motor, 14...
...Indoor light, 22...First comparator, 29...Room thermistor, 30...Second comparator, 49...
Capacitor, 66... Timer switch, 95...
buzzer.

Claims (1)

[Claims] 1 In a sauna bath device that heats the sauna room with a heating source when the power is turned on, a detector detects the temperature inside the sauna room, and the detected temperature of this detector is compared with the set temperature, and the temperature inside the sauna room is A heating source control means that controls the heating source so that the temperature reaches a set temperature, and compares the temperature detected by the detector with a reference temperature, and notifies that it is possible to take a bath when the temperature in the sauna room becomes equal to or higher than the reference temperature. an alarm means, a timer for setting a bathing time when taking a bath and stopping the heating of the sauna room by the heating source after the set time; a sauna interior light that turns on when the timer is set; and a timer for setting the bathing time when taking a bath; A sauna bath device comprising a notification means for notifying the end of the sauna bath, and a delay means for turning off the indoor light after a predetermined time after the time set by the timer has elapsed.