KR100839662B1 - Apparatus for preventing an electric shock of a steam iron - Google Patents

Abstract

A device for preventing electric shock in an electric steam iron is provided to turn off the iron when a cap for a salt water inlet is open, by controlling the power according to the opening of the cap besides a power switch. An electric steam iron comprises a body(11), a lower plate(12), a cap(14), a carbon(15), a switch(16), and an electric shock preventive unit(17). The electric shock preventive unit is installed at a handle(13) between a salt water inlet and the switch and the front end of a handle cover(13'), and supplies and cuts off power depending on the opening of the cap. A push button(17c) of the electric shock preventive unit is inserted to a hole(13a') which is formed on the handle cover. A lower surface of the push button is fixed to a contact plate.

Description

Apparatus for preventing an electric shock of a steam iron}

1 is a cross-sectional view of a conventional electric steam iron,

2 is a cross-sectional view of the electric steam iron employing the present invention electric shock prevention device,

Figure 3a is a perspective view showing an embodiment of the electric shock prevention means according to the present invention,

Figure 3b is a cross-sectional view showing one side of Figure 3a,

Figure 4a is a perspective view showing another embodiment of the electric shock prevention means according to the present invention,

Figure 4b is a cross-sectional view showing one side of Figure 4a,

5 is a cross-sectional view showing another embodiment of the electric shock prevention means according to the present invention;

6 is a power supply circuit diagram according to the present invention;

7 is a flowchart illustrating a process of plating silver on carbon according to the present invention.

<Explanation of symbols for main parts of drawing>

11 body 12 bottom plate

13: handle 13 ': handle cover

13a ': hole 14: cap

14a: projection 15, 15a, 15b: carbon

16 switch 17 electric shock prevention means

17c: push button 18: first contact plate

19a, 19b, 19a ', 19b': Contact points 20a, 20b: Upper terminal plate

20a ', 20b': Lower terminal plate 21, 21 ': Second contact plate

22, 22 ': switch terminal jack 23: pushbutton type limit switch

24a, 24b: Upper switch terminal 24a ', 24b': Lower switch terminal

A, B: switch Aa, Aa ': contact

Ba, Ba ': Contact La, Lb, La', Lb ': Terminal connection line

R: Lamp S: Temperature Sensor

The present invention relates to an electric shock prevention device for an electric steam iron, and more particularly, the on / off of the supply power is controlled by opening and closing the cap blocking the inlet of salt water separately from the on / off switch of the power supply to reduce the risk of electric shock. The present invention relates to an electric shock prevention device for an electric steam iron, which is prevented and silver-coated to have a sterilizing effect.

In general, electric steam irons use salt water supplied through a brine inlet by an applied alternating current power source as a conductor, and electricity flows between the carbon electrode voltage side and the carbon electrode ground side. When steam is generated and discharged through the steam outlet along the passageway of the confined space due to the combination of the body and the base plate, when steam is applied to the wrinkles or wrinkles of the clothes, the hot steam is likely to steam the fibers in the wrinkles and wrinkles of the clothes. The property of the fiber to return to its original flat state is to spread wrinkles or wrinkles.

As such a steam iron, a conventional electric steam iron is provided with a steam outlet (8) in front of the bottom of the relatively flat base plate 2, as shown in side cross-sectional view in FIG. And base plate 2 are integrally combined to seal and are assembled, and the AC power applied to switch 7 is supplied to carbon 5 installed in the body 2 through carbon connection terminal 6. The upper part of the body (1) is provided with a handle (3) attached with a switch (7) and the space inside the body generated by the combination of the body (1) and the bottom plate (2), such as water supply tanks, connecting passages, heating chambers, etc. It serves to seal the brine inlet through the cap (4) so that the heated steam can be discharged only through the steam outlet (8), the handle (3) and the body (1) are assembled by a fixing nut Switch (7) and carbon connector (6) It consists of the structure connected by (10).

In the conventional electric steam iron, when the supply power from the outside is applied to the carbon (5) through the switch 7, the electrode of the carbon (5) is conducted through the brine (9) as the brine (9) is electrolyzed Heat is generated in the electrode of the carbon (5), and the brine (9) is heated to boil. By using the brine (9), the heating rate of the water is increased and the boiling point rises up to 130 ° C to generate steam. The steam generated in this way moves along the passageway of the sealed space due to the combination of the body 1 and the bottom plate 2 to be discharged through the steam outlet 8.

However, the conventional electric steam iron is not provided with any means for preventing an electric shock, so if the child is left with the switch 7 turned on while the cap 4 is opened inadvertently, the children may be curious or mischievous. A metal conductor such as a metal chopstick was put into a salt water inlet, and there was a problem of high risk of a safety accident due to electric shock.

Such an electric shock is caused when the switch 7 is turned off and the brine inlet is closed by the cap 4, and the playful children turn on the switch 7 and open the cap 4 to open a metal such as a metal chopstick. This is caused by inserting a conductor into the brine inlet.

The present invention was invented to solve the problem of electric shock caused by the conventional electric steam iron in view of the above situation, the object of the present invention is to open and close the cap blocking the inlet of salt water separately from the on / off switch of the power source. It is to provide an electric shock prevention device of an electric steam iron to control the power supply on / off by the power supply is turned off when the cap is opened even when the power supply is on to prevent an electric shock accident.

Another object of the present invention is the electric shock of the electric steam iron further improved the safety and convenience of use that can help to prevent various diseases by sterilizing the bacteria parasitic in the clothes ironed by silver sterilization action of silver by carbon plating To provide a prevention device.

Electric steam iron of the present invention for achieving the above object is a base plate coupled to the body and the lower portion of the body, the handle and the handle cover, the cap opening and closing the salt inlet, and the carbon and the power supply built into the body In the electric steam iron consisting of a switch to turn on / off, it is provided at the tip of the handle and the handle cover between the brine inlet side and the switch and provided with an electric shock prevention means for switching on and off the power supply by opening and closing the cap It features.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the electric shock prevention device of the present invention electric steam iron will be described in detail.

Figure 2 is a cross-sectional view of the electric steam iron employing the present invention electric shock prevention device, Figure 3a is a perspective view showing one embodiment of the electric shock prevention means according to the present invention, Figure 3b is a sectional view showing one side of Figure 3a, Figure 4a is 4 is a cross-sectional view showing one side of Figure 4a, Figure 5 is a cross-sectional view showing another embodiment of the electric shock prevention means according to the present invention, the present invention electric steam iron The electric shock prevention device of the body 11 and the bottom plate 12 is coupled to the lower portion of the body 11, the handle 13 and the handle cover 13 ', the cap 14 for opening and closing the brine inlet, and the body ( In the electric steam iron consisting of the carbon 15 embedded in the 11 and the switch 16 for turning on / off the power supply, the handle 13 and the handle cover 13 'between the brine inlet side and the switch 16. Is installed at the tip of the supply by opening and closing the cap 14 Hayeoseo it has been made having an electric shock prevention means for turning on the source / off (17).

The switch 16 used in the present invention uses known and commonly used switches.

As shown in FIGS. 3A and 3B, the electric shock prevention means 17 is pushed so as to be located above the hole 13a ′ formed on the handle cover 13 ′ between the brine inlet side and the switch 16. (17c) is inserted into the hole (13a '), the first contact plate (18) is fixed to the lower surface of the pushbutton (17c), and the bolt on the lower surface of the rear handle cover (13') of the switch (16). Contact strips 19a and 19b are fastened, and the upper terminal plates 20a and 20b and the lower terminal plates 20a 'and 20b' in the longitudinal direction of the handle cover 13 'at both ends of the contact strips 19a and 19b. ) Is fixed to the upper and lower pairs, and the second contact plates 21 and 21 'are fixed to the front ends of the upper terminal plates 20a and 20b to be elastically moved up and down by the first contact plate 18. It is.

Wherein the upper terminal plate (20a, 20b) and the lower terminal plate (20a ', 20b') is a conductive plate of the elastic body, the cap 14 is push button (17c) when the cap 14 is disposed up and down at regular intervals to close the cap 14 Is pushed downward so that the first contact plate 18 fixed to the push button 17c pushes the second contact plates 21 and 21 'downward, and thus the upper terminal plates 20a and 20b are downward. The upper terminal plates 20a and 20b are connected to the lower terminal plates 20a 'and 20b', respectively. That is, the lower terminal plate 20a 'is connected to one side upper terminal plate 20a, and the other upper terminal plate 20b is connected to the lower terminal plate 20b'.

4A and 4B, the electric shock prevention means 17 is located above the hole 13a 'formed on the handle cover 13' between the brine inlet side and the switch 16. The push button 17c is inserted into the hole 13a 'and fixed to the first contact plate 18 on the lower surface of the push button 17c, and on the lower surface of the rear handle cover 13' of the switch 16. The contact strips 19a and 19b are fastened as bolts, and the longitudinal upper terminal plates 20a and 20b of the handle cover 13 'are fixed to both ends of the contact strips 19a and 19b. The switch terminal jacks 22 and 22 'protrude upwardly and are fixed on the contact points 19a' and 19b 'extending in the longitudinal direction of the handle cover 13' at the lower ends of the 19a and 19b, respectively. The second contact plates 21 and 21 'are fixed to the front ends of the upper terminal plates 20a and 20b so as to elastically move up and down by the first contact plate 18. All.

Therefore, when the cap 14 is closed, the cap 14 pushes the pushbutton 17c down so that the first contact plate 18 fixed to the pushbutton 17c is the second contact plate 21, 21 '. Is pushed downward, and thus the terminal plates 20a and 20b are pushed downwards so that each of the terminal plates 20a and 20b is connected to each of the switch terminal jacks 22 and 22 '.

That is, the switch terminal jack 22 is connected to one terminal board 20a, and the switch terminal jack 22 'is connected to the other terminal board 20b'.

As shown in FIG. 5, the pushbutton type limit switch 23 is provided between the handle 13 and the handle cover 13 ′ positioned between the brine injection port side and the switch 16. It can also be configured as. That is, the limit switch 23 is composed of upper switch terminals 24a and 24b and lower switch terminals 24a 'and 24b' so that each of the upper switch terminals 24a and 24b is connected to terminal connection lines La and Lb. The lower switch terminals 24a 'and 24b' are connected to the switch 16 through terminal connection lines La 'and Lb', respectively, and the upper end of the push button 17c is connected to the brine inlet side and the A pushbutton 17c is inserted into the hole 13a 'so as to be located above the hole 13a' formed on the handle cover 13 'between the switches 16.

Accordingly, when the cap 14 is closed, the cap 14 pushes the pushbutton 17c down, so that each of the upper switch terminals 24a and 24b of the limit switch 23 is connected to the lower switch terminals 24a 'and 24b'. When the cap 14 is opened, the connection between each of the switch terminals 24a and 24b and the switch terminals 24a 'and 24b' is electrically released.

In addition, the cap 14 has a diameter of the bottom surface is larger than the diameter of the salt water inlet opening, and a protrusion 14a is formed at the outer periphery of the bottom surface, so that the protrusion 14a is provided with an electric shock prevention means 17 according to the opening and closing of the cap 14. On / off control is made.

3 to 5, all of the embodiments of the electric shock prevention means according to the present invention are connected to two power lines at the same time separately from the switch 16 to supply power to the carbon 15 of the iron or to short-circuit both power lines at the same time By cutting off the power supplied to the carbon 15 of the iron, the principle will be described with reference to the power supply circuit diagram shown in FIG.

As shown in FIG. 6, the switches A and B are turned on / off in accordance with the opening and closing of the cap 14. That is, when the cap 14 is closed, the contacts Aa and Aa 'of the switch A are connected. At the same time, the contacts Ba and Ba 'of the switch B are connected, and when the cap 14 is opened, the contacts A and A' of the switch A and the contacts Ba and Ba 'of the switch B are connected. Short circuit.

The switch 16 is in the state where the cap 14 of the iron is closed, that is, the contacts A and A 'of the switch A and the contacts Ba and Ba' of the switch B are connected. It is a switch which is turned on / off according to use, and the lamp R which shows the on / off state of this switch 16, and the temperature sensor S which detects and short-circuits a superheat temperature are provided in one power supply line.

The carbon 15 embedded in the iron is composed of two carbons 15a and 15b separated from each other and connected to different power lines, and the carbons 15a and 15b are made of silver to have an effect of removing bacteria. Plated.

As shown in Fig. 7, the silver plating on the carbons 15a and 15b is performed in the following steps.

First, in the pretreatment process (step S1), the carbons 15a and 15b are washed with a month-long cleaner to remove foreign substances on the surfaces of the carbons 15a and 15b and degreased. Subsequently, the surface of carbon 5a and 15b) is plated with blue and blue copper in step S2, copper lactate is plated in step S3, and non-toxic free nickel plating is performed in step S4. Subsequently, silver plating is performed in step S5, and the silver plating is completed on the carbons 15a and 15b by washing in step S6.

Here, the plating of the steps S2 to S5 is carried out at a temperature of 50 ℃ or more, and the coating thickness of silver after plating is 1 to 3㎛.

The iron adopting the electric shock prevention device of the electric steam iron of the present invention configured as described above opens the cap 14 and injects brine into the body 11 through the salt water inlet, and then closes the cap 14 and then turns on the switch 16. Will be used. That is, in the state in which the cap 14 is closed, the protrusion 14a of the cap 14 pushes the push button (push button 17c in the case of FIGS. 3, 4, and 5) downward, and FIG. 3. In one embodiment, one upper terminal plate 20a is connected to one lower terminal plate 20a ', and the other upper terminal plate 20b is connected to the other lower terminal plate 20b', and in the embodiment of FIG. One switch terminal jack 22 is connected to 20a, and the other switch terminal jack 22 'is connected to the other terminal board 20b. In the embodiment of FIG. 5, the lower switch terminal 24a is connected to the upper switch terminal 24a. ') Is connected, and the lower switch terminal 24b' is connected to the upper switch terminal 24b to turn on the switch 16, the power source is supplied to the carbon 15 through the switch 16 and the electric shock prevention means 17. And the electrodes of the carbon (15a, 15b) is conducted through the brine so that the brine is electrolyzed to generate heat to the electrode of the carbon (15) When the brine is heated and boiled, the electric steam iron can be used.

When the cap 14 is opened in this state, the protrusion 14a of the cap 14 does not push the pushbutton (push button 17c in the case of FIGS. 3, 4, and 5) to the lower side so that both power lines are shorted. Even if the switch 16 is turned on, the power supply is cut off by the electric shock prevention means 17 and is not supplied to the carbon 15.

In addition, the present invention is to have a sterilization action of bacteria by the silver plated carbon (15a, 15b), the sterilization degree of the bacteria was tested as follows and the results are shown in Table 1.

Escherichia as used strain Using coli ATCC 25922, the distance between the medium on which the strain ( Esherichia coli) was smeared and the steam outlet of the steam iron of the present invention was 3 cm, and steam was injected to the medium. The reduction rate was obtained and the results are shown in Table 1 below.

            Test Items                      Test result     Initial concentration (CFU / 40p)   Concentration after 10 seconds (CFU / 40p)    Bacterial Reduction Rate (%)   Test by E. coli      BLANK      422      422        -  Steam Iron (D-2)      422        2       99.5

 It can be seen from Table 1 that the steam of the present invention electric steam iron has a bactericidal action.

Although the present invention has been described as a preferred embodiment so far, the present invention is not limited thereto, and various modifications can be made without departing from the gist of the invention. That is, by installing a temperature sensor, the fuse may be further configured to cut off the power supply when the iron is heated during use of the temperature sensor.

As described above, the present invention controls the supply power on / off by opening and closing the cap blocking the brine inlet separately from the on / off switch of the power supply so that the power supply is turned off when the cap is opened even when the power is on, thus preventing electric shock. There is a special effect to further improve safety and convenience in use, which can help to prevent various diseases by sterilizing the bacteria parasitic in the garment ironed by silver sterilization of silver by carbon plating silver.

Claims (8)

A base plate 12 coupled to the bottom of the body 11 and the body 11, a handle 13 and a handle cover 13 ′, a cap 14 for opening and closing a salt water inlet, and a built-in body 11. In the electric steam iron comprising a carbon 15 and a switch 16 for turning on / off a power supply, It is provided at the tip of the handle 13 and the handle cover 13 'between the brine inlet side and the switch 16, and provided with an electric shock prevention means 17 for turning on / off the supply power by opening and closing the cap 14. Electric shock prevention device of the electric steam iron, characterized in that made by. The pushbutton (17c) according to claim 1, wherein the electric shock prevention means (17) has a push button (17c) located above the hole (13a ') formed on the handle cover (13') between the brine inlet side and the switch (16). Inserted into the hole 13a ', the lower surface of the pushbutton 17c is fixed to the contact plate 18. The lower surface of the rear cover knob 13' of the switch 16 is bolted to the contact points 19a and 19b. ) Is fastened, and the upper terminal plates 20a and 20b and the lower terminal plates 20a 'and 20b' are fixed to the upper and lower pairs in the longitudinal direction of the handle cover 13 'at both ends of the contact points 19a and 19b. In the electric steam iron, characterized in that the contact plates 21, 21 'are fixed to the front ends of the upper terminal plates 20a, 20b and are elastically moved up and down by the contact plates 18. Electric shock prevention device. The pushbutton (17c) according to claim 1, wherein the electric shock prevention means (17) is located above the hole (13a ') formed on the handle cover (13') between the brine inlet side and the switch (16). Inserted into the hole 13a ', the lower surface of the pushbutton 17c is fixed to the contact plate 18. The lower surface of the rear cover knob 13' of the switch 16 is bolted to the contact points 19a and 19b. ) Is fastened, and the upper terminal plate 20a 20b is fixed to the front ends of the handle covers 13 'at both ends of the contact strips 19a and 19b, and the lower portion of the contact strips 19a and 19b. The switch terminal jacks 22 and 22 'protrude upwardly and are fixed to the upper side contact points 19a' and 19b 'extending longitudinally forward of the handle cover 13', and the upper terminal plate 20a, The contact plates 21 and 21 'are fixed to the front end of 20b) and are installed to elastically move up and down by the contact plate 18. Electric shock prevention device of electric steam iron. 2. The electric shock prevention means (17) according to claim 1, wherein the electric shock prevention means (17) is a limit switch (23) located between the brine inlet side and the switch (16), and the limit switch (23) is connected to the upper switch terminals (24a, 24b). The lower switch terminals 24a 'and 24b', and each of the lower switch terminals 24a 'and 24b' is connected to the switch 16 by terminal connection lines La 'and Lb', respectively, and the pushbutton 17c. ), The push button 17c is inserted into the hole 13a 'so that the upper end of the upper portion of the c) is positioned above the hole 13a' formed on the handle cover 13 'between the brine inlet side and the switch 16. Electric shock prevention device of the electric steam iron, characterized in that. 5. The cap 14 according to any one of claims 1 to 4, wherein the cap 14 has a diameter greater than that of the upper surface of the salt water inlet port, and a protrusion 14a is formed at the outer peripheral portion of the cap 14 so as to open and close the cap 14. The electric shock prevention device of the electric steam iron, characterized in that the projection (14a) according to the on / off control of the electric shock prevention means (17). The electric power supply according to claim 5, wherein a lamp (R) indicating an on / off state of the switch (16) and a temperature sensor (S) for detecting and shorting an overheat temperature of the iron are provided at one power line. Electric shock prevention device for steam iron. 6. The method of claim 5, wherein the carbon 15 is separated into two carbons 15a and 15b and connected to each other power line, and the carbons 15a and 15b are plated with silver. Electric shock prevention device for electric steam iron. The method of claim 7, wherein the silver plating is to remove the foreign matter on the surface of the carbon (15a, 15b) by washing the carbon (15a, 15b) with a month-end cleaner in the step S1, and then degreased, and then the carbon (15a, 15b) in the step S2 Plated cyanide copper on the surface of), plated copper lactate in step S3, non-toxic free nickel plating in step S4, and then plated silver in step S5, and then silver plated by washing in step S6. Electric shock protector for electric steam iron.

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