JPS6171053A - Steam generator - 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 [Technical Field 1] The present invention relates to a steam generator used in a steam-type facial beauty device, an inhaler, etc., and particularly to a steam generator with a boiler set.

[Background technology 1] There are two types of steam generators: one is a boiler set in which a heater is installed in a steam generation chamber to which water is supplied, and the other is a drip type that drips water onto the surface of the heater. Although there is not much time delay in the generation of steam, if there is variation in the amount of water supplied and there is an oversupply, the water will not be turned into steam but will be discharged as hot water beads, which may cause burns. In terms of safety, the former is better. However, with a conventional boiler set, the heater is operated with a large amount of water in the steam generation chamber, resulting in a long waiting time for steam generation. When only a small amount of water is supplied into the room, the amount of steam generated decreases and the steam generation ends in a short period of time.

[Objective of the Invention 1 The present invention has been made in view of the above points, and its purpose is to generate a stable amount of steam over a long period of time. To provide a steam generating device for a set of boilers with short waiting time from start to generation of steam.

[Disclosure 1 of the Invention The present invention provides a steam generation chamber that is equipped with a water supply port and a steam discharge port and is provided with a heating heater, and a water level sensor that detects the full water level in the steam generation chamber.''1 A water tank connected to the water supply port through a water supply channel to supply water to the steam generation chamber, and a water tank installed in the water supply channel to control the water supply from the water tank to the steam generation chamber based on the output from the water level sensor. The steam generating chamber is supplied with water from a separately installed water tank, and is operated based on the output of a full water level sensor. A solenoid valve keeps the amount of water in the steam generation chamber at a low level at all times.

The present invention will be described in detail below based on the illustrated embodiment. The illustrated example is a facial beauty device that sprays ionized steam,
a housing 3 in which the water tank 2 is installed in a two-sided recess;
Hold the shaft 32 to the receiver 31 on the outer surface of the housing 3.
It consists of an arm 4 that is swingably attached to the bottom, and a nozzle 19 that injects steam is provided at the tip of the arm 4 whose angle can be changed by loosening the arm holder 40. The steam generation chamber 1 that generates the steam jetted from the nozzle 19 is connected to the housing 3.
The interior is suspended from the bottom plate with legs 35, and the interior is partitioned into two rooms communicating at the bottom by a baffle plate 14 hanging from the top plate. A heater 5 made of a positive temperature coefficient thermistor or the like is installed on the bottom of one of the chambers, and two water level sensors S, , S2 are installed in the other chamber.

These water level sensors S, S2 are each formed of two electrodes hanging down from the top plate of the steam generation chamber 1, both electrodes of the water level sensor S1 are short, and both electrodes of the water level sensor S2 are short. In addition, each electrode, except for its tip, is covered with an elastic material such as silicone rubber that has waterproof and electrically insulating properties. The water level is L in Figure 1.
The water level sensor S2 becomes conductive when the water level in the steam generation chamber 1 rises to below the - level.In this case, the water level sensor S1 is used to indicate the full water level, and the water level sensor The lower limit water level is detected by S2. However, the amount of water in the steam generation chamber 1 is small when the water level is full, that is, when the water level sensor S1 becomes conductive, and the amount of water in the steam generation chamber 1 is small enough that steam is generated immediately after heating by the heater 5 starts. be.

The steam obtained by heating the water in the steam generation chamber 1 with the heater 5 is guided to the nozzle 19 from the steam outlet 17 formed on the top of the chamber on the side where the heater 5 is disposed. However, here, the elastic tube 18 with the nozzle 19 provided at one end and the steam discharge port 17 are not directly connected, but are connected via the discharge tube 60 in which the discharge electrode 6 is installed. Due to the discharge between the discharge electrodes 6 connected to the high-pressure discharge unit 61 shown in FIG.
This is what allows the steam to become ionized.

Further, the nozzle 19 is formed so that its jetting direction is perpendicular to the steam passage leading up to this point, and
The rear end is formed so as to protrude into the steam passage, so that condensed water (hot water beads) in the steam passage does not blow out.

Now, water is supplied to the steam generation chamber 1 from the water tank 2, and the water tank 2, which is detachable from the housing 3, is always closed by a spring as shown in FIG. It is equipped with a cap 21 incorporating an energized valve 20, and supplies water to the steam generation chamber 1 through a supply chamber 7 formed as a recess on the two sides of the housing 3''. The upper part of the supply room 7 is a stepped part 7.
(), and the stepped portion 70 is provided with a rib 72 for securing air vent space, so that the water tank 2 rests on the stepped portion 70, and the stepped portion 70 is made larger from the bottom surface. A pin 71 is provided upright, and a water level sensor S3 consisting of a pair of electrodes is provided protrudingly, and the bottom surface thereof is connected to the water supply port 15 of the steam generation chamber 1 through the solenoid valve 8 and the water supply pipe 75. There is.

The pin 71 pushes open the valve 20 of the water tank 2 placed on top of the supply chamber 7 with the cap 21 facing downward against its spring bias, as shown in FIG. This guides the water in the water tank 2 into the supply chamber 7. Furthermore, supply room 7
The water level inside the water tank 2 is maintained at the level L1 of the lower surface of the cap 21 facing downward until the inside of the water tank 2 is emptied.

Further, the water level sensor S3 is in a conductive state when the water level in the supply chamber 7 is at the above level L,
It is shut off when the water level in the supply chamber 7 decreases to below the Lo level in the figure, and functions as a water drain sensor. Furthermore, from the supply room 7 to the steam generation room 1
The electromagnetic valve 8 installed in the water supply channel to the steam generating chamber 1 is normally closed by a spring, and opens when energized to supply water to the steam generating chamber 1.

As is clear from the above explanation, there are two
Two water level sensors S, S2 and a water level sensor S3 are installed in the supply room 7, and these are each inserted into the input circuit of a relay, and the relay activated by the water level sensor S. The normally closed contact R3, is the fourth
As shown in the figure, the normally open contact R82 of the relay operated by the water level sensor S2 is connected in series with the solenoid valve 8, and the normally open contact R33 of the relay operated by the water level sensor S3 is connected in series with the heater 5 and the high pressure discharge unit 61. , which is connected in series to the solenoid valve 8, the heater 5, and the high-pressure discharge unit 61. Occasionally, the heater 5 and the high pressure discharge unit 61 operate when the water level in the steam generation chamber 1 is below the LL level, and the solenoid valve 8, the heater 5 and the high pressure discharge unit 61 operate in the supply chamber. Water level within 7. When the water level falls below the level, both water level sensors S l
It closes or stops regardless of the water level in the steam generation chamber 1 detected by 182. However, the contact R33 of the relay where the water level sensor S3 is inserted into the input circuit is an off-delay type, and after a certain period of time after the water level sensor S3 opens, its normally open contact RS'
= opens. Further, as is clear from FIG. 4, a time-limiting contact Ta operated by a timer T is inserted in this circuit, and even when the timer T times up, the operation of the heater 5 and high-pressure discharge unit 61 is stopped.

The same thing happens even if the thermo switch TS installed on the lower surface of the steam generation chamber 1 in the vicinity of the heater 5 is turned off.

To explain the operation in more detail below, turn on the power switch located on the front of the housing 3,
From the initial setting () displayed on the display section TD, set the timer T's time-up time to an appropriate time using the push button FWD to increase this value and the push button R (EV to decrease it), and then add water. Set water tank 2,
After this, the operation indicator lamp L. Close the start/stop switch SWs, which will turn on the light. At this time, if the water level in the steam generation chamber 1 has not reached the water level LH at which the water level sensor SI becomes conductive, the solenoid valve 8 remains open through the relay contact RS 3 being conductive by the output of the water level sensor S3, and the water level sensor SI conducts. Water from a tank 2 is sent to a steam generation chamber 1 via a supply chamber 7. Further, when the water level in the steam generation chamber 1 has not reached the water level LL at which the water level sensor S2 conducts, neither the heater 5 nor the high pressure discharge unit 61 is energized. When the water level in the steam generation chamber 1 reaches the Lt level, the water level sensor S2 and the contact R82 conduct, and the heater 5 is energized and the high-pressure discharge unit 61 is also energized to generate steam. The ionization of this steam begins. When the water level in the steam generation chamber 1 reaches the L□ level and the water level sensor S1 becomes conductive and the relay contact R3 opens, the solenoid valve 8 closes and water is supplied from the supply chamber 7 to the steam generation chamber 1. stop.

From then on, until the timer T times up or the water runs out,
Alternatively, until the start/stop switch SWs is pressed again, the solenoid valve 8 is repeatedly opened and closed according to the increase or decrease of the water level in the steam generation chamber 1 based on the output of the water level sensor S1, and the water level in the steam generation chamber 1 is Steam generation takes place while being maintained at a nearly constant level. Then, the steam heading to the nozzle 19 is transmitted between the discharge electrodes 6 t
After the makeup is ionized by the electric discharge that makes it easier for makeup to adhere to the skin, it is sprayed from the nozzle 19. Although the water surface in the steam generation chamber 1 is undulated due to the generation of steam and the influence of water flowing into the steam generation chamber 1, the presence of the baffle plate 14 prevents the water surface in the part where the water level sensor SI is installed from undulating. Furthermore, it goes without saying that the amount of water flowing into the steam generation chamber 1 per unit hour 111 is greater than the amount of water that is turned into steam, and the ratio is about 2 to 3:1. In order to prevent the water flowing into the steam generation chamber 1 from significantly lowering the temperature inside the steam generation chamber 1, in other words, to ensure that the water flowing into the steam generation chamber 1 is stabilized and the amount of steam generated is 1'. It has become.

When the time set in the timer T elapses while steam is being generated, the time-limiting contact Ta is cut off, so the solenoid valve 8 closes and the heater 5 and high-pressure discharge unit 61 stop operating. At times, the time limit contact T11 closes and a melody notifying the time up is sounded from the speaker SK. If the water tank 2 becomes empty and the water level in the supply chamber 7 rises before time-up, and the water level falls below, the water level sensor S3
Since the relay contact R33 is opened after a certain period of time as described above, the heater 5 and the high pressure discharge unit 61 are disconnected.
When this stops, the mini solenoid valve 8 closes.

The certain period of time here is, for example, 1 to 2 minutes, and the non-delay contact of the relay pond that receives the water level sensor S3 as an input notifies the user of water shortage and lights up the water shortage indicator lamp L1 arranged on the surface of the housing 3. This is the time from when the person recognizes that the water tank 2 is empty until the time when the water tank 2 is replenished with water and the water tank 2 is reset. The water level I-8 detected by the water level sensor S3 is set to such a level that the water in the steam generation chamber 1 will not run out during a certain period of time. Furthermore, even if the amount of water remaining in the supply chamber 7 is less than the amount of water that will be turned into steam during a certain period of time, the water level in the steam generation chamber 1 will be
-1, if the water level falls below the water level, the water level sensor S2 is shut off, the relay contact R82 is turned off, and the operation of the heater 5 is stopped, so there is no possibility of dry cooking.

[Effect of the invention 1 As described above, in Kinoto 113H, a water level sensor is provided to detect the full water level in the steam generation chamber, and water is supplied from the water tank to the steam generation chamber based on the output from this water level sensor. Since it controls the solenoid valve installed in the steam generation chamber, the water level in the steam generation chamber is always maintained at a constant level, and the supercharged water is prevented from boiling as well as from boiling. Therefore, it is possible to generate a stable amount of steam for a long time, and as a result,
Even if the amount of water at the full water level in the steam generation chamber is reduced, no problem will occur, and the waiting time from the start of energization to the heater until the generation of steam can be shortened.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of one embodiment of the present invention, Fig. 2 is a sectional view of the replenishment chamber and water tank of the above, Fig. 3 is a sectional view of the water tank of the same, and Fig. 4 is a sectional view of the water tank of the same. The main circuit diagram, Figure 5, is a perspective view of the same as above, in which 1 is a steam generation chamber, 2 is a water tank, 5 is a heater, 6 is a discharge electrode, 8 is a solenoid valve, 15 is a water supply port, and 17 is a steam discharge. 19 is a nozzle, SL is a water level sensor for detecting the full water level, S2 is a water level sensor for detecting the lower limit water level, and S3 is a water level sensor for detecting the amount of water in the water tank.

Claims (4)

[Claims] (1) A steam generation chamber that is equipped with a water supply port and a steam discharge port and is provided with a heating heater; a water level sensor that detects the full water level in the steam generation chamber; and a steam generation chamber that is connected to the water supply port through a water supply channel. A steam generator comprising a water tank that supplies water to the steam generation chamber, and an electromagnetic valve that is provided in the water supply channel and controls the water supply from the water tank to the steam generation chamber based on the output from the water level sensor. Generator. (2) The steam generating device according to claim 1, wherein the heater is controlled based on the output of a water level sensor that detects a lower limit water level in the steam generating chamber. (3) The steam generator according to claim 1, wherein the solenoid valve and the heater are controlled based on the output of a sensor that detects the amount of water in the water tank. (4) The steam generator according to claim 1, wherein a discharge electrode is installed in the discharge passage connected to the steam discharge port.