JP2000202197A - Iron - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adjust temperature with the temperature of an ironing surface with high accuracy by directly detecting the temperature of a second base having the ironing surface by a temperature detecting sensor. SOLUTION: This iron consists of a heater 4, the first base 21 internally provided with the heater 4, the second base 23 having the ironing surface and a thermal resistance layer 22 disposed between the first base 21 and the second base 23 and consists of the temperature detecting sensor 40 which is installed to the second base 23 and is used to detect the temperature and a control circuit 14. The temperature of the second base 23 having the ironing surface is directly detected by the temperature detecting sensor 40, by which the temperature control with the temperature of the ironing surface with the high accuracy is made possible.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an iron used for removing wrinkles of clothes and the like in ordinary households.

[0002]

2. Description of the Related Art Conventionally, this type of iron has the structure shown in FIG.

Hereinafter, description will be made with reference to FIG. First, reference numeral 1 denotes an iron body, and the iron body 1 is provided with a water tank 5 for storing detachable water, and an opening and closing device for opening and closing a passage for supplying water in the water tank 5 to a water passage 6. 7 are provided.

The opening and closing device 7 includes a steam button 8 formed on the upper part of the water tank 5 so as to be movable up and down, an opening and closing stick 9 which moves up and down by operation of the steam button 8 and has a latch mechanism, and an opening and closing stick 9. And a button spring 10 for urging the steam button 8 upward. Further, the lower end of the opening / closing rod 9 has a hemispherical shape, and can be in contact with the upper end of the water channel 6 to close the water path to the water channel 6. The water channel 6 is provided above the vaporization chamber 2, and the water in the water tank 5 is dropped into the vaporization chamber 2 via the water channel 6 from a drip hole 10 provided at the lower end.

[0005] Reference numeral 21 denotes a first base made of aluminum in which the vaporization chamber 2 and the heater 4 are provided.
A temperature detection sensor 12 composed of a thermistor for detecting the temperature of the base 21 is attached above the sensor 21. A change in the resistance value of the temperature detection sensor 12 due to the temperature is transmitted to the control circuit 14, whereby the control circuit 14 The heater 4 controls the amount of heat generated by the heater 4 and is controlled to an appropriate temperature.

Reference numeral 22 denotes a heat resistance layer having a heat conducting action in contact with the lower portion of the first base 21, and 23 denotes a heat resistance layer 22
A second base made of aluminum having an ironing surface in contact with the lower side. The heat resistance layer 22 is made of silicon rubber having a lower thermal conductivity than the second base 23 made of aluminum and having heat resistance.

Reference numeral 24 denotes a first steam path opened below the vaporization chamber 2 of the first base, 25 denotes a heat conduction steam path opened immediately below the heat resistance layer 22, and 26 denotes a heat conduction steam path immediately below. This is a steam hole formed in the second base 23.

The operation of the above configuration will be described. First, when the operator turns on the control circuit 14, the heater 4 is energized. The heat generated by the heater 4 is directly transmitted to the first base 2.
1 is heated. However, the first base 21 has the heat resistance layer 2
Since the second base 23 is in contact with the second base 23 and the second base 23 is in contact with the heat resistance layer 22, the heat of the first base 21 is transmitted through the heat resistance layer 22 and the second base 23 is also heated at the same time.

After a while, the temperature detection sensor 12 in contact with the first base 21 detects that the first base has reached a predetermined temperature, and the control circuit 14 turns off the heat generation of the heater 4. When the temperature decreases, the heater 4 starts to generate heat by the temperature detection sensor 12, and the temperature is adjusted within a certain temperature range. However, a certain temperature difference occurs between the first base 21 which is directly heated by the heater 4 and the second base 23 which releases heat from the ironing surface.

[0010] This is because a thermal resistance layer 22 having a low thermal conductivity is interposed between the first base, which is a heat supply side, and a constant balance between the second base, which is a heat release side. This is because a state occurs.

That is, although the temperature of the ironing surface is appropriate for the fibers, the temperature of the first base 21 can be made higher than that, and a large amount of heat can be stored.

[0012]

However, in such a conventional structure, since the temperature detection sensor 12 is provided on the first base, it is necessary to accurately detect the temperature of the second base. The first problem was that it was not possible. In addition, when the second base temperature drops significantly due to the sudden heat load caused by ironing, the second problem that the supply of heat from the first base cannot keep up during power supply and the temperature recovery is slow Had.

In view of the above, the present invention solves the above-mentioned conventional problem. For the first problem, it is possible to improve the detection accuracy by directly detecting the temperature of the second base. With respect to the second problem, it is an object of the present invention to provide an iron capable of accelerating the temperature recovery of the second base during power supply by providing the second base with the second heater.

[0014]

According to the iron of the present invention, a heater, a first base having the heater provided therein, a second base having an ironing surface, the first base and the second base are provided. A temperature detection sensor for detecting a temperature attached to the second base in a heat resistance layer provided between the bases, and a control circuit.

[0015]

DETAILED DESCRIPTION OF THE INVENTION The invention described in claim 1 of the present invention comprises a heater, a first base having the heater provided therein,
In a second base having an ironing surface, and a heat resistance layer provided between the first base and the second base,
A temperature detection sensor for detecting a temperature attached to the second base, and a control circuit, the temperature detection sensor by directly detecting the temperature of the second base having an ironing surface, more accurate The temperature can be adjusted at a high ironing surface temperature.

According to a second aspect of the present invention, in addition to the first aspect of the present invention, a temperature detection sensor is provided substantially at the center of the second base. Therefore, it is possible to detect the temperature of the portion where the temperature is lowered, and it is possible to further improve the detection accuracy.

According to a third aspect of the present invention, in addition to the first aspect of the present invention, the temperature detecting sensor is buried in a recess provided on the upper surface of the second base. Since the heat insulating layer is formed, it is hardly affected by the temperature of members other than the second base, and the thickness of the second base up to the hanging surface side (bottom side) can be reduced. The temperature on the surface side can be detected with higher accuracy.

According to a fourth aspect of the present invention, there is provided a first heater, a first base in which the first heater is provided, and a first base for detecting a temperature attached to the first base. A temperature detection sensor, a second base having an ironing surface, a second heater provided in the second base, and a second temperature detection for detecting a temperature attached to the second base. A sensor, a heat resistance layer provided between the first base and the second base, and a control circuit, the first base at the time of heating at the beginning of use or immediately after ironing clothes, the second base At the time of heating when the temperature of the base decreases, the first base is heated by the first heater and the temperature is adjusted at a predetermined temperature by the first temperature detection sensor, while the second base is the second base. Heated by a heater and set at a predetermined temperature by a second temperature sensor. By performing temperature adjustment, the first base is the first heater and the second base is the second heater, and each can reach the appropriate temperature in a short time, and the accuracy of the set temperature is also high. It becomes.

According to a fifth aspect of the present invention, in addition to the fourth aspect of the present invention, the amount of heat generated per hour by the first heater is made larger than that of the second heater, and the second heater acting as a heat storage section is provided. Since the heat capacity of one base is lower than that of the second base, the difference in heating time to a predetermined temperature when power is supplied at the same time can be almost eliminated, and the power supply time can be shortened.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. The same components as those in the conventional example are denoted by the same reference numerals, and description thereof is omitted.

(Embodiment 1) A first embodiment of the present invention will be described below with reference to FIGS. Since the basic structure is the same as that of the first embodiment, the same reference numerals are given and the description is omitted.

In FIG. 1 and FIG. 2, reference numeral 40 denotes a temperature detecting sensor formed of a thermistor, which is embedded in a concave portion 50 which is concavely formed on a substantially central upper surface of the second base 23. The difference from the first embodiment is that the position at which the predetermined temperature is detected is changed to directly detect the temperature of the second base 23 from the first base 21.

As an effect, by directly detecting the temperature of the second base 23 having the ironing surface, the temperature can be adjusted with higher accuracy at the temperature of the ironing surface.
In addition, by providing the temperature detection sensor 40 at a position substantially at the center of the second base, it is possible to detect the temperature of the portion where the temperature is reduced due to the heat of vaporization of steam and heat conduction to the clothes. And the detection accuracy can be further improved.

Further, since the temperature detecting sensor 40 is embedded in the concave portion 50 which is recessed above the concave portion, a slight heat insulating layer is formed in the concave portion 50, so that the temperature detecting sensor 40 is affected by the temperature of members other than the second base. Difficult, and the second base 23
Since the thickness up to the hanging surface side (bottom side) can be reduced, the required temperature on the hanging surface side of the second base 23 can be more accurately detected.

(Embodiment 2) A second embodiment of the present invention will be described below with reference to FIG. Since the basic structure is the same as that of the conventional example, the same reference numerals are given and the description is omitted.

In FIG. 3, reference numeral 41 denotes a first heater provided in the first base 21;
43 is a second base having an ironing surface that contacts below the heat conductor 22. Reference numeral 44 denotes a second heater provided in the second base 43. 45 is a second sensor for detecting the temperature of the second base 43, 46 is the first heater 4
This is a control circuit for controlling the amount of heat generated by the first and second heaters 44.

The operation of the above configuration will be described. As in the conventional example, when the operator first switches on the control circuit 46, the first heater 41 and the second heater 44 are energized. The first base 21 is directly heated by the first heater 41, and the second base 43 is directly heated by the second heater 44. However, since the heat conductor 22 is in contact with the first base 21 and the second base 43 is in contact with the heat conductor 22, the heat of the first base 21 is
2, the second base 43 is also heated at the same time. After a while, the first temperature control sensor 42 in contact with the first base 21 detects that the first base 21 has reached a predetermined temperature, and the control circuit 46 turns off the heat generation of the first heater 41. When the temperature decreases, the first heater 41 starts to generate heat by the first temperature control sensor 42, and the temperature is adjusted within a certain temperature range. Similarly, the second base 43 independently adjusts the temperature by the second temperature sensor 45.

As described above, the first base and the second base are separately and independently heated, so that the first base 21 and the second base 43 at the time of the first heating or immediately after ironing the clothes. When the temperature is lowered, the first base 21 is directly heated by the first heater 41, and the second base 43 is directly heated by the second heater 44. It is possible to reach an appropriate temperature in a long time, and the accuracy is improved.

Further, since the first base 21 acting as a heat storage section is heavier than the second base 43 and has a larger temperature drop, the heat generation per hour of the first heater 41 is made larger than that of the second heater 44. Thus, the power supply can be terminated almost at the same time by eliminating the difference in the temperature rise time to the predetermined temperature when the power supply is performed at the same time, and the power supply time can be shortened.

[0030]

According to the first aspect of the present invention, there is provided a heater, a first base having the heater therein, a second base having an ironing surface, the first base and the first base. A heat resistance layer provided between the two bases, comprising a temperature detection sensor for detecting a temperature attached to the second base, and a control circuit, wherein the temperature detection sensor has an ironing surface; By directly detecting the temperature of the second base, it is possible to control the temperature at the temperature of the ironing surface with higher accuracy.

According to a second aspect of the present invention, in addition to the first aspect of the present invention, a temperature detection sensor is provided substantially at the center of the second base. Therefore, it is possible to detect the temperature of the portion where the temperature is lowered, and it is possible to further improve the detection accuracy.

According to a third aspect of the present invention, in addition to the first aspect of the present invention, the temperature detecting sensor is buried in a recess provided on the upper surface of the second base. Since the heat insulating layer is formed, it is hardly affected by the temperature of members other than the second base, and the thickness of the second base up to the hanging surface side (bottom side) can be reduced. The temperature on the surface side can be detected with higher accuracy.

According to a fourth aspect of the present invention, there is provided a first heater, a first base in which the first heater is provided, and a first base for detecting a temperature attached to the first base. A temperature detection sensor, a second base having an ironing surface, a second heater provided in the second base, and a second temperature detection for detecting a temperature attached to the second base. A sensor, a heat resistance layer provided between the first base and the second base, and a control circuit, the first base at the time of heating at the beginning of use or immediately after ironing clothes, the second base At the time of heating when the temperature of the base decreases, the first base is heated by the first heater and the temperature is adjusted at a predetermined temperature by the first temperature detection sensor, while the second base is the second base. Heated by a heater and set at a predetermined temperature by a second temperature sensor. By performing temperature adjustment, the first base is the first heater and the second base is the second heater, and each can reach the appropriate temperature in a short time, and the accuracy of the set temperature is also high. It becomes.

According to a fifth aspect of the present invention, in addition to the fourth aspect of the present invention, the amount of heat generated per unit time of the first heater is made larger than that of the second heater. Since the heat capacity of one base is lower than that of the second base, the difference in heating time to a predetermined temperature when power is supplied at the same time can be almost eliminated, and the power supply time can be shortened.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view of an iron according to a first embodiment of the present invention.

FIG. 2 is a plan view of the second base.

FIG. 3 is a partially cutaway side view of an iron according to a second embodiment of the present invention.

FIG. 4 is a partially cutaway side view of a conventional iron.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Iron main body 2 Vaporization room 4 Heater 5 Water tank 14, 46 Control circuit 21 First base 22 Heat resistance layer 23, 43 Second base 24 Heat resistance layer 26 Steam hole 40 Temperature detection sensor 41 First heater 42 First One temperature detection sensor 44 Second heater 45 Second temperature detection sensor 50 Recess

Claims (5)

[Claims] 1. A heater, a first base in which the heater is provided, a second base having an ironing surface, and a heat resistance layer provided between the first base and the second base. An iron comprising: a temperature detection sensor attached to the second base for detecting a temperature; and a control circuit. 2. The iron according to claim 1, wherein the temperature detection sensor is provided substantially at the center of the second base. 3. The iron according to claim 1, wherein a concave portion is provided on an upper surface of the second base, and a temperature detecting sensor is embedded in the concave portion. 4. A first heater, a first base having the first heater provided therein, a first temperature detection sensor for detecting a temperature attached to the first base, and ironing. A second base having a surface, a second heater provided inside the second base, a second temperature detection sensor for detecting a temperature attached to the second base, A heat resistance layer provided between the base and the second base,
An iron consisting of a control circuit. 5. The iron according to claim 4, wherein the amount of heat generated per hour by the first heater is larger than that by the second heater.