EP3258005B1 - Electric steam iron - Google Patents

Description

Technical field

The present invention relates to the technical field of a steam iron. The present invention relates to an electric steam iron, comprising an iron with an evaporation device, the evaporation device having a heating device and a temperature control device; wherein the heater has a first heater and a second heater; the first heater being provided with a preheating chamber within the iron and the second heater being provided with an evaporation chamber; wherein the temperature control device is designed to control the temperature of the first radiator; wherein the preheating chamber has a water inlet hole, a water outlet hole of the preheating chamber is connected to a water inlet hole of the evaporation chamber, and the evaporation chamber is also provided with a steam discharge hole; the vaporization chamber being provided within the iron.

State of the art

The US 2010/0242314 A1 discloses an electric steam iron of the type defined above.

The electric iron is one of the most popular modern household appliances and is used to iron clothes. When placing clothes, cases such as folding, warping, shrinking are common. At this moment, the iron on the clothes can move back and forth so that the clothes become straight, stiff, neat and smooth again. At present, an electrothermal iron is most commonly used, such as one in the CN 201080569 Y mentioned electric steam iron, which has an outer housing, a water tank, a Machine carrier and a heating device for heating a base plate, on which an evaporation chamber is provided and at the same time an independent steam boiler is provided, wherein the vapor droplets in the evaporation chamber can be removed and the purity of the steam expelled from the base plate can be ensured by the steam generated by steam boilers penetrates into the base plate, and at the same time the vaporization chamber further heats the steam. With such an electric iron, when steam release is stopped, water still remains in the boiler, and still more steam is continuously generated so that steam is discharged from the bottom plate for a long time and the so-called "slow steam phenomenon" occurs and not is user-friendly. An Indian CN 203411837 U The electric steam iron mentioned comprises an outer housing, a water tank, a machine support and a heating device for heating a base plate, the water entering the evaporation chamber of the base plate directly from the water tank and being evaporated therein. With such an electric iron, water is easily injected in a large amount of water, and an undesirable ironing effect. Therefore, there is still room for improvement in the prior art.

The EP 0 232 924 A1 discloses a steam iron comprising at least two heating elements, at least one element for heating a steam boiler for steam generation and at least one further element for heating the soleplate. The heating element for steam generation delivers a higher output than the element for heating the soleplate.

The EP 0 785 303 A1 discloses a domestic electrical appliance that uses steam, particularly a steam iron. This consists of an internal or external water tank, which is connected to a practically instantaneous steam generator. An anti-scale system in the form of a thermal precipitation unit, through which the precipitated lime is removed, is arranged in front of the steam generator. The thermal precipitation unit is preferably in the form of a water heating reservoir trained in which the water is kept at a temperature of more than 60 ° C. The reservoir is used for water storage and contains a heater and a temperature controller. It can be in the form of an auxiliary container with a volume that corresponds to the maximum volume of steam.

The WO 2006/000958 A1 discloses a steam ironing assembly comprising a steam iron, a steam generator and a water tank. A pump is also provided for pumping water from the water reservoir to the steam generator. Inside the steam generator, the water is heated to steam. The steam generated is passed through an iron soleplate of the steam iron to an object to be ironed.

The EP 2 009 172 A2 discloses an electric steam iron comprising a water tank, a bottom plate, a heater used for heating the bottom plate, a steam generator with a boiling chamber, a heater for heating the boiling chamber and a temperature controller. The boiling chamber is in fluid communication with the water tank and the outlet of the boiling chamber is in fluid communication with the outlet opening of the base plate. The heating devices of the base plate and the steam generator are connected in series with their respective heating circuit.

The object of the present invention is to provide an electric steam iron with an evaporation device, as a result of which the problems of long-term steam phenomenon and undesirable water emissions from the prior art are overcome, a very desirable ironing effect is achieved and simple operation is possible.

To achieve the above object, the present invention is carried out as follows:
The electric steam iron comprises an iron with an evaporation device, the evaporation device having a heating device and a temperature control device; wherein the heater one has first heater and a second heater; the first heater being provided with a preheating chamber within the iron and the second heater being provided with an evaporation chamber; wherein the temperature control device is designed to control the temperature of the first radiator; wherein the preheating chamber has a water inlet hole, a water outlet hole of the preheating chamber is connected to a water inlet hole of the evaporation chamber, and the evaporation chamber is also provided with a steam ejection hole; the vaporization chamber being provided within the iron. Furthermore, a machine support with a water supply device and a connecting pipe are provided, the iron being connected to the machine support via the connecting pipe and the water inlet hole of the preheating chamber being connected to the water supply device in order to supply water from the water supply device to the preheating chamber, the weight of the first radiator being greater or greater is equal to 200 g and is less than 2000 g, the water supply device comprises a water tank and a water pump, the water pump being a mechanical pump or electromagnetic vibration pump, and a flow channel being provided in the preheating chamber in such a way that the water flows to the full when it flows through the preheating chamber Circumference is heated.

According to the above solution, it is preferably provided that the water temperature within the preheating chamber is above 50 ° C. but below 100 ° C., so that the temperature difference between the preheating chamber and the evaporation chamber is reduced and the water discharge phenomenon is further prevented.

According to the above solution, it is preferably provided that the temperature control device is one of the group of a PCT heating plate, a sudden temperature control device, an adjustable temperature control device or a thermostat. This not only enables to control the preheating temperature, but also to facilitate the temperature setting by the user.

According to the above solution, it is preferably provided that one or more heating elements are provided on the first heating element. The heating efficiency can be effectively increased, in particular in the case of a plurality of heating elements.

According to the above solution, it is preferably provided that one or more heating elements are provided on the second heating element. The heating efficiency can be effectively increased, particularly in the case of a plurality of heating elements.

According to the above solution, it is preferably provided that a flow channel is provided in the preheating chamber in such a way that the water is fully heated when flowing through the preheating chamber in order to reduce energy consumption and improve the heating efficiency.

A stand-alone thermal treatment is implemented for the electric steam iron of the present invention. Above all, the water is preheated and the high-temperature water is generated by a preheating chamber. The high-temperature water in turn heats up the preheated water via the evaporation chamber and this generates the steam for ironing the clothes. There will not be a water discharge due to an excessive hot-cold difference. Since the water temperature in the preheating chamber is below 100 ° C, there will be no vapor pressure inside the preheating chamber. Thus, the water in the preheating chamber will not enter the evaporation chamber when the water supply device is stopped and the steam generated therein will not be expelled. In this way it can be avoided that the long-term steam phenomenon is still present after use, that is, that the steam is still continuously expelled. In addition, the weight of the first radiator is greater than or equal to 200g and less than 2000g. This configuration is suitable for high-performance equipment and has the advantages such as a large amount of heat absorption and high work efficiency, etc. In the In the present invention, the properties of water and steam are combined, and the evaporation structure is reasonably distributed and designed. As a result, the steam effect can be considerably improved compared to the previous solutions, so that the temperature of the steam expelled increases and the steam increases, the ironing effect is more desirable. Therefore, you get a more pleasant experience when ironing.

Brief description of the drawings

Fig. 1 Fig. 3 is a structural representation that does not fall under the present invention.

1. 1. Maschinenträger
2. 2. Verbindungsrohr
3. 3. Bügeleisen
4. 4. Wasserversorungseinrichtung
5. 5. Erster Heizkörper
6. 6. Verdampfungskammer
7. 7. Vorwärmekammer
8. 8. Zeiter Heizkörper

In the figures:

1. 1. Machine carrier
2. 2. Connecting pipe
3. 3. Iron
4. 4. Water supply facility
5. 5. First radiator
6. 6. Evaporation chamber
7. 7. Preheating chamber
8. 8. Time radiator

Detailed embodiments

The technical solutions of the present invention are explained below on the basis of figures and exemplary embodiments:
An evaporation device according to the present invention comprises a heating device and a temperature control device. The heating device comprises a first heating element 5 and a second heating element 8, the first one Radiator 5 is provided with a preheating chamber 7 and the second radiator 8 is provided with an evaporation chamber 6. The temperature control device is designed to control the temperature of the first heating element 5, the preheating chamber 7 having a water inlet hole for supplying the water into the preheating chamber 7, a water outlet hole of the preheating chamber 7 being connected to a water inlet hole of the evaporation chamber 6, and the evaporation chamber 6 also is provided with a steam ejection hole. The water temperature inside the preheating chamber is above room temperature, but below 100 ° C, the weight of the first radiator is greater than or equal to 200g and lower than 2000g. With the present invention, the usual long-term steam phenomenon and water ejection from the prior art can be overcome and a very desirable ironing effect can be achieved, and an improved user experience and simple operation are possible. The weight of the first radiator is designed to be greater than or equal to 200g and less than 2000g. This configuration is suitable for use under high performance and enables a large amount of heat absorption and high work efficiency.

Specifically, it is provided that the water temperature within the preheating chamber 7 is above 50 ° C but below 100 ° C. Thus, the temperature difference between the preheating chamber 7 and the evaporation chamber 6 is reduced and the water discharge phenomenon is further prevented. The temperature control device is used to control the temperature of the first radiator so that the water temperature in the preheating chamber 7 is below 100 ° C. The preheating temperature is controlled more precisely by this temperature control device. The temperature control device is one of a group of a PCT heater, a step temperature control device, an adjustable temperature control device or a thermostat. This makes it possible not only to control the preheating temperature, but also to facilitate the temperature setting by the user.

Specifically, it is provided that one or more heating elements are provided on the first heating element 5 and are evenly distributed within the first heating element 5. The evenly distributed heating elements evenly heat the first radiator 5 and increase the heating efficiency. At the same time, one or more heating elements are provided on the second radiator and are evenly distributed within the second radiator 8. The evenly distributed heating elements evenly heat the evaporation chamber 6 and increase the heating efficiency.

Alternatively, it is provided that an arcuate flow channel is provided in the preheating chamber 7 in such a way that the water is fully heated when it flows through the preheating chamber 7 in order to reduce energy consumption and improve the heating efficiency; that an arcuate flow channel is provided in the evaporation chamber 6 in such a way that the water is fully heated as it flows through the evaporation chamber 6 in order to reduce the energy consumption and to improve the heating efficiency.

How Fig. 1 shows, the present invention provides an electric steam iron, comprising a machine support 1 and an iron 3 connected to the machine support 1 via a connecting pipe 2, a water supply device 4 being provided in the machine support 1. The water supply device 4 comprises a water tank and a water pump, the water pump being a mechanical pump or electromagnetic vibration pump. The first heating element 5 is also provided inside the machine support 1, of course the first heating element 5 can also be provided inside the iron 3. The first heating element 5 and the second heating element 6 are each provided with a temperature control device in order to control the heating temperature within the two. The water tank and the water pump are connected to each other. The water pump is connected via a line to a water inlet hole of the preheating chamber 7, the Water outlet hole of the preheating chamber 7 is connected via a line to the water inlet hole of the evaporation chamber 6, the steam ejection hole of the evaporation chamber 6 is in turn connected to a steam ejection point of a base plate of the iron 3.

During use, the water pump pumps the water out of the water tank into the preheating chamber 7. The water which flows through the preheating chamber 7 and is heated by the first radiator 5 reaches a temperature of 50 ° C to 100 ° C and forms the high-temperature water, and is transported back into the evaporation chamber. The water is heated by the second heater 8 for the second time and fully evaporated, and generates a strong steam which is discharged from the steam discharge hole of the evaporation chamber 6. This strong and powerful steam is used to iron clothes. When the water flows through the preheating chamber 7 and is preheated, the high-temperature water generated re-enters the evaporation chamber 6. There will not be a water discharge due to an excessive temperature difference between the two points. The pool of water that arises when ironing clothes is considerably reduced. When the pump stops pumping, there is no vapor pressure in the preheating chamber 7 because the water temperature in the preheating chamber 7 is lower than 100 ° C. Therefore, the water is not pressed into the evaporation chamber 6 in order to avoid that after the water pump has stopped, the water in the preheating chamber 7, after entering the evaporation chamber 6, continuously generates the steam and the steam is released further.

A stand-alone thermal treatment is implemented for the vaporizer and electric steam iron of the present invention. Above all, the water is preheated by a preheating chamber 7 and the high-temperature water is generated. The high-temperature water in turn heats up the preheated water via the evaporation chamber 6 and thereby the Steam is used to iron clothes. There will not be a water discharge due to an excessive hot-cold difference. Since the water temperature in the preheating chamber 5 is below 100 ° C., no vapor pressure will arise within the preheating chamber 5. Thus, when the water supply device 4 stops, the water in the preheating chamber will not enter the evaporation chamber and the steam generated therein will not be expelled. In this way it can be avoided that the long-term steam phenomenon is still present after use, that is, that the steam is still continuously expelled. In the present invention, the properties of water and steam are combined, and the evaporation structure is reasonably distributed and designed. As a result, the steam effect can be considerably improved compared to the previous solutions, so that the temperature of the steam expelled increases and the steam increases, the ironing effect is more desirable. Therefore, you get a more pleasant experience when ironing.

The above are more advantageous embodiments. The equivalent modifications or transformations made on the basis of the essential structures, features and principles of the present invention do not deviate from the technical scope of the present invention.

Claims (6)

1. Electric steam iron, comprising
   an iron (3) with a vaporisation device,
   wherein the vaporisation device has a heating device and a temperature control device; wherein
   the heating device has a first heating body (5) and a second heating body (8); wherein the first heating body is provided with a preheating chamber (7) within the iron, and the second heating body is provided with a vaporisation chamber (6); wherein
   the temperature control device is designed so as to control the temperature of the first heating body; wherein
   the preheating chamber has a water inlet hole; a water outlet hole of the preheating chamber is connected to a water inlet hole of the vaporisation chamber, and the vaporisation chamber is also provided with a steam discharge hole; wherein
   the vaporisation chamber is provided inside the iron;
   characterised in that,
   a machine stand (1) with a water supply device (4), and a connecting tube (2), are provided, wherein
   the iron is connected to the machine stand via the connecting tube, and the water inlet hole of the preheating chamber is connected to the water supply device so as to supply water from the water supply device to the preheating chamber, wherein
   the weight of the first heating body is greater than or equal to 200 g, and less than 2000 g,
   the water supply device comprises a water tank and a water pump, wherein
   the water pump is a mechanical pump, or an electromagnetic vibration pump, and
   a flow channel is provided in the preheating chamber, such that the water is heated to its full extent as it flows through the preheating chamber.
2. Electric steam iron according to Claim 1,
   characterised in that,
   the water temperature inside the preheating chamber is above 50°C, but below 100°C.
3. Electric steam iron according to Claim 2,
   characterised in that,
   the temperature control device is one of the group of a PCT heating plate, a stepped temperature control device, an adjustable temperature control device, or a thermostat.
4. Electric steam iron according to Claim 1,
   characterised in that,
   one or a plurality of heating elements is provided on the first heating body.
5. Electric steam iron according to Claim 1,
   characterised in that,
   one or a plurality of heating elements is provided on the second heating body.
6. Electric steam iron according to Claim 1,
   characterised in that,
   a flow channel is provided in the vaporisation chamber, such that the water is heated to its full extent as it flows through the vaporisation chamber.

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