JPH07100119B2 - Steam spout - Google Patents

Description

TECHNICAL FIELD The present invention relates to a steam ejector mainly used for wrinkle stretching of clothes and fibers.

2. Description of the Related Art Conventionally, a steam ejector of this type has been disclosed in, for example, Japanese Utility Model Publication Sho 57-1154.
As shown in Japanese Patent Laid-Open No. 00, it was as shown in FIG. 5 and FIG.

That is, the composition of the vaporizing chamber for generating steam, the temperature of the steam passage and the vaporizing chamber to a temperature suitable for generating steam is a base 23 having a steam ejection hole 24, and a packing 26 in the base 23. Vaporization chamber 30 between the base lid 25 and the heater 27 attached via
A plurality of partition plates 28 and 29 that define a steam passage 31 and a projecting wall 32 extending between the partition plates 28, 29.
It is trying to make the vaporization of water more complete by dividing the 8,29 gap inside and outside to bypass the steam.

Reference numeral 33 denotes a sensor, which in the present example uses a thermostat to adjust the temperature of the vaporization chamber 30 to a temperature desirable for vaporization of water, and is provided on the outer surface of the vaporization chamber 30 to energize the heater 27. Have control.

However, in such a structure, the mounting position of the sensor 33 is extremely close to the heater 27, and at the start of energization of the heater 27, the heat from the heater 27 is generated in the vaporization chamber 30 and the steam passage. Before being sufficiently transmitted to the base 23 and the partition plates 28 and 29 forming the 31, the temperature of the sensor 33 rises and the power supply is cut off. For this reason, immediately after the start of use, the temperature of the steam passage 31 is low and the water is not sufficiently vaporized, so that the unvaporized water droplets spout with the steam and stain the clothing.

Therefore, a first object of the present invention is to delay the operation time of the sensor at the start of use to sufficiently energize and raise the temperature of the steam passage to a temperature necessary for vaporization to prevent the ejection of water droplets.

The second purpose is to prevent heat conduction to the sensor from the radiation fins, and to slow down the temperature rise rate of the sensor.

Means for Solving the Problems In order to achieve the first object, the present invention provides a vaporization chamber in which a heater is embedded, and a steam passage is formed between the vaporization chamber and the vaporization chamber to attach the vaporization chamber to the vaporization chamber. A base having a steam ejection hole for ejecting steam generated in the vaporization chamber, and controlling the energization to the heater,
A sensor attached to the outer surface of the vaporization chamber separated from the embedded position of the heater, and a heat radiation fin projecting from the outer surface of the vaporization chamber so as to surround the sensor, the heat radiation fin being provided between the heater and the sensor. It is located in.

Further, in order to achieve the second object, the present invention is to form the heat radiation fin in the vicinity of the heater and to provide a gap between the heat radiation fin and the sensor.

Action With the steam ejector of the present invention, when the heater is energized, the heat from the heater is transmitted through the inside of the base lid to gradually loosen the sensor. However, since the heat radiation fin is formed on the outer surface of the vaporization chamber, the heat for loosening the sensor is released into the air through the heat radiation fin, and the temperature rise rate of the sensor becomes slower than in the case without the heat radiation fin. The amount of heat is stored in the vaporization chamber and the member forming the steam passage by that amount, and a sufficient vaporization ability can be obtained from the start of use.

Further, since the heat radiation fin is formed close to the heater and a gap is provided between the heat radiation fin and the sensor, heat transfer from the heat radiation fin to the sensor can be reduced and the temperature rise of the sensor can be delayed. You can

Example Hereinafter, one example of the present invention will be described with reference to the accompanying drawings.

In FIGS. 1 and 2, 1 is a base having a steam ejection hole 2, 3 is a base lid attached to the base 1 via a packing 4, and a heater 5 is incorporated therein. Reference numerals 6 and 7 denote partition plates interposed between the base 1 and the base lid 3, each of which has a peripheral edge sealed by a packing 4.
The partition plate 6 and the base lid 3 on one side define a vaporization chamber 8. Reference numeral 10 is a tube for supplying the water in the tank 11 to the vaporization chamber 8 and is provided with an opening / closing valve 13 for controlling the water forcibly supplied by the pressurizing device 12. Reference numeral 14 is a pipe that communicates with the tube 10 and discharges water to one end of the vaporization chamber 8. A steam hole 15 of the partition plate 6 is provided at a position apart from the opening of the pipe 14. Reference numeral 16 denotes a projecting wall extending inward from the peripheral edge of the packing 4 to form a bypass circuit 17 between the partition plates 6 and 7, which is formed in a substantially U shape, and the steam hole 15 is located outside thereof. Further, a through hole 18 is formed in the partition plate 7 so as to communicate with the inside thereof. Reference numeral 19 denotes a sensor mounted on the outer surface of the vaporization chamber 8, that is, on the base lid 3, and controls the energization of the heater 5 by a built-in bimetal to keep the temperature in the vaporization chamber 8 at a temperature suitable for vaporization. Like the sensor 19, 20 is a radiating fin projecting from the base lid 3 on the outer surface of the vaporizing chamber 8. FIG. 3 shows a gap 21 between the sensor 19 and the radiation fin 20.
FIG. 6 is a plan view of the base cover 3 showing that the above is provided.

Next, the operation of the configuration of this embodiment will be described. When the heater 5 is energized, the sensor 19 attached to the base lid 3 is supplied with heat and its temperature rises. However, the radiation fin 20 is provided on the base lid 3,
Since the heat is released into the air, the temperature rise of the sensor 19 becomes slower than that in the case where the radiation fin 20 is not provided, and the time for energizing the heater 5 becomes longer. On the other hand, the partition plates 6 and 7 and the base 1 are attached to the side of the base lid 3 opposite to the heat radiating fins 20, and the temperature rises at about the same rate as when the heat radiating fins 20 are not provided. The longer time can reach the temperature required for water vaporization.
As a result, it is possible to provide a steam ejector in which water droplets do not jump out even at the start of use.

Next, the operation of the radiation fin 20 and the gap 21 provided near the heater will be described. Since the radiating fin 20 is close to the heater 5 by the sensor 19, the temperature of the radiating fin first rises and the heat is radiated into the air, so that the temperature rise of the sensor 19 is delayed and it becomes more effective. However, the radiation fin 20 and the sensor
When 19 contacts, a part of the heat to be released as a heat transfer path is supplied to the sensor 19, so that the heat transfer path can be cut off by the gap 21 to further delay the temperature rise of the sensor 19.

Effects of the Invention As described above, the present invention is a vaporization chamber in which a heater is embedded,
A steam passage is formed between the vaporizing chamber and the vaporizing chamber, and the vaporizing chamber is attached to the base. The base has a steam jetting hole for jetting steam generated in the vaporizing chamber, and the heater is electrically controlled. A sensor attached to the outer surface of the vaporization chamber separated from the buried position of the vaporization chamber, and a heat radiation fin projecting from the outer surface of the vaporization chamber so as to surround the circumference of the sensor, and the heat radiation fin between the heater and the sensor. By positioning it, the temperature of the vaporization chamber, the steam passage, and the like can be raised from the start of use to obtain a predetermined vaporization capacity, and good steam can be jetted. Further, the heat radiation fin is formed in the vicinity of the heater and a gap is provided between the heat radiation fin and the sensor, so that the temperature rise of the sensor is delayed and the vaporization capacity of the vaporization chamber and the steam passage is further enhanced. You can

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a steam ejector according to an embodiment of the present invention, FIG. 2 is an exploded perspective view showing configurations of a sensor, a base lid and a steam passage, and FIG. 3 is a plan view of the base lid.
FIG. 4 is a sectional view taken along the line AA ′ in FIG. 1, FIG. 5 is a longitudinal sectional view of a conventional steam ejector, and FIG. 6 is an exploded perspective view showing the configuration of a conventional sensor, base lid and steam passage. is there. 5 ... Heater, 8 ... Vaporization chamber, 19 ... Sensor, 20 ...
… Radiation fins, 21 …… Gap.

Claims (2)

[Claims] 1. A vaporization chamber in which a heater is embedded, a steam passage is formed between the vaporization chamber and the vaporization chamber, and the vaporization chamber is attached to the vaporization chamber, and a steam ejection hole for ejecting steam generated in the vaporization chamber is provided in the base. And a sensor attached to the outer surface of the vaporization chamber that is located outside the embedded position of the heater while controlling energization to the heater, and a heat radiation fin that projects from the outer surface of the vaporization chamber so as to surround the sensor. And a steam ejector in which the heat radiation fin is located between the heater and the sensor. 2. The steam ejector according to claim 1, wherein the radiation fin is formed in the vicinity of the heater, and a gap is provided between the radiation fin and the sensor.