KR200405823Y1 - Device for steam generation - Google Patents

Abstract

The present invention, in the rapid heating type steam generator for home appliances, by dividing the body of the heater die-casting into two so that a plurality of protrusions protruding in the water moving passage of one of the body to prevent the rapid movement of water In order to increase the contact time between the body and the body and also to increase the heat transfer area of the water and the body, to achieve stable steam generation of the rapid heating type steam generator for home appliances, water tank, the water Heater die casting for converting the water supplied from the tank to steam, and a water supply unit provided between the water tank and the heater die casting to supply water from the water tank to the heater die casting to the steam generator for home appliances In the heater die casting, a moving passage of water is formed therein, A water inlet and a steam outlet are formed at both ends of the moving pipe, and a heater is built in the body; The body is divided into a first body and a second body coupled to the first body to form the movement pipe; A packing is provided between the first body and the second body to prevent leakage of the moving pipe; The heater is embedded in the second body; It characterized in that a plurality of protrusions for the purpose of preventing the movement of water and increasing the heat transfer area on the bottom surface of the moving pipe forming portion of the second body.

Water tank, water supply section, heater die casting, rapid heating type, home appliance

Description

Steam generator for home appliances {DEVICE FOR STEAM GENERATION}

1 is an exploded perspective view of a heater die casting according to an embodiment of the present invention,

2 is a perspective view of the first body of FIG. 1 as viewed from below;

3 is a perspective view of the second body of FIG. 1 viewed from below;

4 is a schematic cross-sectional view of the heater die casting based on line A-A of FIG. 1;

5 is a schematic cross-sectional view of the heater die casting based on the B-B line of FIG. 1;

6 is a view schematically showing the flow of water with respect to the projections,

7 is a plan view of applicable protrusions.

<Description of Symbols for Main Parts of Drawings>

100: heater die casting 110: the first body

111: first body moving pipe forming portion

120: second body 121: second body moving pipe forming portion

122: water inlet 123: steam outlet

125: heater 126: projection

130: packing

The present invention relates to a steam generator that can be applied to household appliances such as steam cleaners, vacuum steam cleaners, irons.

Recently, home appliances using steam are widely used. Looking at such a steam generator for home appliances, it can be largely divided into a boiler type heating method and a rapid heating type.

In the boiler type heating method, a heater is provided inside the water tank, and the temperature of the water is raised by heating the heater, and finally steam (steam) is generated, and the steam is discharged to the steam outlet formed on the water tank.

On the other hand, in the case of the rapid heating type, the water tank and the heater are separated. In this method, water must be transferred from the water tank to the heater. For this purpose, a water supply part is provided between the water tank and the heater, and the water is supplied by the piston method or by using the water's own pressure through on / off control of the valve. The water can be supplied by forcibly providing a pump or the like.

On the other hand, the heater of the rapid heating type is embedded in a thermally conductive metal body such as aluminum having a moving pipe of water therein, and when the temperature of the heater rises, the heat is transferred to the body and finally passes through the moving pipe inside the body. The water will turn into steam.

In the case of such a rapid heating type, the moving pipe of the body is formed in a straight line. However, this structure continuously generates heat loss due to the difference between the temperature of the body heated by the heater and the temperature of the water. Therefore, if water is supplied out of an appropriate amount or the water is continuously supplied, the supplied water does not change to 100% steam. And some of the hot water which is not changed into steam is discharged to the steam outlet.

In addition, even if a large amount of water is temporarily supplied by supplying a variable amount of water without supplying a fixed amount of water, hot water is discharged to the steam outlet.

The present invention relates to a steam generator for home appliances adopting the rapid heating type as described above.

As a prior art according to the present invention, Korean Registered Utility Model No. 20-0389618, which is incorporated herein, is known as a "steam cleaner which improved the leak phenomenon". This is a curved line rather than a straight line of the movement of the water formed in the heater die casting, so that the water supplied can be configured to temporarily stand. However, even with this technology, hot water that is not changed into steam can be discharged to the steam outlet, and if the water is stagnant inside, the stagnant water is blocking the passage where steam is discharged. When the steam pressure of the steam is increased and the steam pressure rises above a certain limit, the overheat phenomenon in which stagnant hot water and high-pressure steam are temporarily driven to the steam outlet by the steam pressure frequently occurs.

The present invention has been made to solve the problems of the prior art as described above, in the steam generator for home appliances, the body is divided into two so that a plurality of protrusions protruding in the water moving passage of one of the body; The purpose of this is to increase the contact time of the water and the body by interfering with the rapid movement of water and to increase the heat transfer area of the water and the body, thereby enabling stable steam generation of the rapid heating type steam generator for home appliances. do.

In order to solve the above problems, the present invention, a water tank, a heater die casting for changing the water supplied from the water tank to steam, and provided between the water tank and the heater die casting water from the water tank to the heater die casting In the steam generator for home appliances comprising a water supply for supplying: The heater die casting, the body is formed with a moving passage of water therein, the water inlet and the steam outlet is formed at both ends of the moving passage and the body It comprises a heater which is built in; The body is divided into a first body and a second body coupled to the first body to form the movement pipe; A packing is provided between the first body and the second body to prevent leakage of the moving pipe; The heater is embedded in the second body; A plurality of projections for the purpose of preventing the movement of water and increasing the heat transfer area on the bottom surface of the moving pipe path forming portion of the second body is characterized in that protruding.

In the above, it is preferable that the protrusions are shaped to change the moving direction of water moving toward the protrusions by at least 90 degrees.

In the above, it is preferable that the steam outlet is protruded upward from the bottom surface of the moving pipe forming portion of the second body, but protruded lower than the plurality of protrusions.

In the above, it is preferable that a residual moisture storage portion formed below the bottom surface of the moving pipe forming portion of the second body is formed around the steam outlet.

Hereinafter, the configuration and operation in detail according to an embodiment of the present invention.

The steam generator for home appliances of the present embodiment is basically composed of a water tank, a water supply part, and a heater die casting as is conventionally applied, and a double water tank and a water supply part may be applied in various ways as is known in the art. have.

Hereinafter, the heater die casting of the present invention is examined.

1 is an exploded perspective view of a heater die casting according to an embodiment of the present invention, FIG. 2 is a perspective view of the first body of FIG. 1 viewed from below, and FIG. 3 is a perspective view of the second body of FIG. 1 viewed from below, 4 is a schematic cross-sectional view of the heater die casting based on the AA line of FIG. 1, and FIG. 5 is a schematic cross-sectional view of the heater die casting based on the BB line of FIG. 1.

The heater die casting 100 is largely divided into a first body 110, a second body 120, the packing 130.

Two coupling holes 114 are formed in the first body 110, and two coupling holes 124 are formed at positions corresponding to the second body 120, and bolts the coupling holes 114 and 124 to each other. The first body 110 and the second body 120 are coupled to each other by penetrating the nut through the nut.

On the other hand, the first body 110 is formed with a first body moving pipe forming portion 111, and the second body 120 is also formed with a second body moving pipe forming portion 121. Therefore, by combining the first body 110 and the second body 120, a moving passage of water is formed in the first body 110 and the second body 120.

In addition, the water inlet 122 and the steam outlet 123 are formed at both ends of the water pipe. In the present embodiment, a water inlet 122 and a steam outlet 123 are formed in the second body 120.

The heater 125 is built in the second body 120. The heater 125 embedded in the second body 120 is provided in a substantially U-shape, and is positioned below the moving channel forming part 121 of the second body 120.

Accordingly, the water in the water tank (not shown) is introduced into the heater die casting 100 through the water inlet 122 by the water supply unit (not shown), and the water introduced into the heater die casting 100 moves along the moving pipe. In the movement process, heat is received from the heater 125 and the second body 120 embedded in the second body 120, and consequently changes into steam, and finally is discharged through the steam outlet 123. .

1, when the water examines the movement path, when water is supplied from the lower portion to the water inlet 122, the supplied water is a clockwise path formed by the movement pipe (upper left direction-> upper direction-> lower direction, lower left direction). , Straight direction, upper right direction: after moving along the steam) is discharged downward through the steam outlet 123.

Meanwhile, a packing 130 is provided between the first body 110 and the second body 120 to prevent leakage of the moving pipe. The packing 130 is necessary because the heater die casting 100 is formed by dividing the first body 110 and the second body 120 into a moving pipe.

Meanwhile, a plurality of protrusions 126 protrude from the bottom surface of the moving channel forming part 121 of the second body 120. The protrusions 126 may be used to change the moving water to steam by increasing the contact area between the moving water and the moving pipe by increasing the time for water to stay in the moving pipe by preventing the movement of the water.

At this time, the shape of the projection 126 is preferably a shape that can change the movement direction of the water in contact with the projection 126 at least 90 ° or more. That is, since the protrusion 126 of the present embodiment is for increasing the residence time of the moving water, it is preferable to directly prevent the movement of the water, and when the water movement direction is changed to less than 90 °, the flow rate of the moving water is reduced. Will be less. FIG. 6 schematically illustrates the flow of the protrusion 126 and the moving water of FIG. 1, and the shape of the first half of the protrusion 126 applied to FIG. 1 is a form in which the moving direction of the water may be 90 ° from both sides. The second half shape of the protrusion 126 is symmetrical with the first half shape to increase the contact area with water.

The top views of the projections applicable to this example are listed in FIG. The top view shown on the leftmost side of FIG. 7 corresponds to the shape of the protrusion 126 of FIG. 1. Arrows shown in Figure 7 represent the direction of movement of water. Of course, the projections of various shapes may be presented in addition to FIG. 7.

On the other hand, the steam outlet 123 of the present embodiment, as shown in Figures 1 and 4, is formed to protrude upward from the bottom surface of the moving pipe forming portion 121 of the second body (120). This is to prevent the hot water from escaping to the steam outlet 123 when the moving water reaches the steam outlet 123 but does not change into steam. That is, even when the moving water remains, the hot water is not discharged to the steam outlet 123 until the water level is increased by the protruding height of the steam outlet 123, and even in this case, the steam is discharged to the steam outlet 123. Can be. In addition, the protruding height of the steam outlet 123 is not higher than the protruding height of the protrusion 126. It is preferable that the protrusion 126 is formed to be almost in contact with the first body 120 as much as possible. However, the steam outlet 123 may be formed to some extent with the first body 110 to secure a space where steam is discharged. It is necessary to be spaced apart. Therefore, in such a structure, the pressure of the generated steam does not increase even when water remains, so that the overhit phenomenon, which is a problem in the related art, does not occur.

In addition, the residual moisture storage unit 127 is formed on the right side of the steam outlet 123 to be lower than the bottom surface of the moving channel forming unit 121 of the second body 120 as shown in FIGS. 1 and 4. . The residual moisture storage unit 127 is formed to secure a space for temporarily storing water that has not been changed by steam.

On the other hand, as shown in Figure 3, in order to sense the heat of the heater 125, the thermostat (128, thermostat) and the micro temp (129, micro temp.) Is attached to the second body 120. They serve to control the temperature of the heater diecasting and are also safeguards against rapid temperature rises.

The above embodiments are merely preferred embodiments of the present invention, and the technical idea of the present invention may be variously modified or adjusted by those skilled in the art. If such modifications or adjustments use the technical idea of the present invention, it is within the scope of the present invention.

As described above, the present invention, in the steam generator for home appliances, by dividing the body into two so that a plurality of protrusions protruding to the water moving pipe forming portion of one of the body to prevent the rapid movement of water and water By increasing the contact time of the body and also to increase the heat transfer area of the water and the body, it is possible to generate a stable steam of the rapid heating type steam generator for home appliances.

In addition, the present invention provides a steam generator that can operate stably even when the water supply of the steam generator supplies a variable amount of water.

In addition, the present invention stably discharges steam even when some water is not changed to steam in the heat die die casting of the steam generator, so that the overhit phenomenon, which is a problem of the prior art, does not occur.

Claims (4)

A household appliance comprising a water tank, a heater die casting for changing water supplied from the water tank into steam, and a water supply unit provided between the water tank and the heater die casting to supply water from the water tank to the heater die casting. In the steam generator for: The heater die casting includes a moving pipe of water formed therein, a body having water inlets and steam outlets formed at both ends of the moving pipe, and a heater embedded in the body; The body is divided into a first body and a second body coupled to the first body to form the movement pipe; A packing is provided between the first body and the second body to prevent leakage of the moving pipe; The heater is embedded in the second body; Steam generator for home appliances, characterized in that a plurality of projections for the purpose of preventing the movement of water and increase the heat transfer area on the bottom surface of the moving pipe forming section of the second body. The steam generator of claim 1, wherein the protrusions are configured to change a moving direction of water moving toward the protrusions by at least 90 °. The method according to claim 1 or 2, The steam outlet is a steam generating device for home appliances, characterized in that protruding upward from the bottom surface of the moving passage forming portion of the second body, but protruding lower than the plurality of protrusions. The method of claim 3, wherein Steam generator for home appliances, characterized in that the residual moisture storage portion is formed around the steam outlet is lower than the bottom surface of the moving pipe forming portion of the second body.

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