KR100728502B1 - Steam boiler and steam and vacuum cleaner - Google Patents

Abstract

A steam boiler and a steam and vacuum cleaner using the same are provided to generate steam efficiently by preventing loss of heat with an insulation case, and to insulate heat by completely sealing a body with an epoxy molding part formed in the upper part of the body. A steam boiler includes a body having a passage, a water injection port and a steam discharge port, a heater(270) embedded in the body, and insulation cases(290a,290b) insulating heat of the body. The insulation case is made of ceramic, and the U-shaped heater is inserted to the body excluding a contact terminal. The insulation case is composed of a lower insulation case having two storage grooves containing the contact terminal of the heater, and an upper insulation case communicated with the water injection port and the steam discharge port so as to cover the upper part of the lower insulation case.

Description

Steam Boiler and Steam Combined Vacuum Cleaner

1 is a perspective view showing a combined steam cleaner according to a preferred embodiment of the present invention.

Figure 2 is a perspective view of the steam cleaning unit of Figure 1;

3 is an external perspective view of a steam boiler according to a preferred embodiment of the present invention.

4 is a plan view of a second body;

Figure 5 is an exploded perspective view showing a steam boiler adopting a heat insulation case according to an embodiment of the present invention.

Figure 6 is a perspective view showing a steam boiler adopting an insulating case according to another embodiment of the present invention.

Figure 7 is a perspective view of a conventional steam combined vacuum cleaner.

8 is an exploded perspective view showing a conventional steam boiler.

9 is a cross-sectional view taken along line A-A of FIG.

<Explanation of symbols for the main parts of the drawings>

100: base 110: air intake

200: steam cleaning unit 210: bucket

220: filter 230: pump

240: Euro 250: Cover

260: steam boiler 261: steam discharge tube

263: steam injection port 260a: first body

261a: water inlet 262a: steam outlet

260b: second body 265: groove

270: U-shaped heater 290a: upper insulation case

291: contact terminal accommodating groove 290b: lower insulation case

299: epoxy molding part 300: extension tube

400: handle 500: operation switch

600: steam module mounting pipe 610: release button

Patent Document 1: Korean Patent Publication No. 1995--0030962

Patent Document 2: Korean Utility Model Registration No. 20-0405823

The present invention relates to a steam boiler and a steam combined vacuum cleaner employing the same, and to a steam boiler insulated from the outside of the steam boiler and a steam combined vacuum cleaner employing the same.

As a conventional steam combined vacuum cleaner, what is disclosed by the publication of patent document 1 is proposed, for example.

As shown in FIG. 7, the dual-use vacuum cleaner of Patent Document 1 discloses a motor and a filter installed therein, and is connected to the main body 2 and the hose 3 of the canister vacuum cleaner 1 by a brush at the end. The water tank (6) is installed to store and supply a certain amount of water to one side of the brush pipe (5) to which the (4) is connected, and the water stored in the water tank (6) to supply a fixed amount, constant pressure In order to boil water supplied from the water supply pump 7, the water supplied from the water supply pump 7 to a constant temperature to generate steam, and to generate steam from the heater 8, the brush 4 Steam pipe (9) is connected between the heater (8) and the brush (4) in order to supply the injection to the front side.

The heater 8 can be largely divided into a boiler type heating method and a rapid heating type. In the boiler type heating system, a heater is provided in 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 at the top of the water tank. In case of rapid heating type, water tank and steam boiler are separated. In this manner, water must be transferred from the water tank to the steam boiler, and for this purpose, a pump or the like can be provided between the water tank and the steam boiler to supply water.

The rapid heating type steam boiler is embedded in a thermally conductive metal body such as aluminum, in which a water pipeline is formed therein. When the temperature of the heater rises, the heat is transferred to the body, and finally the water passing through the pipeline is inside the body. This steam will change.

In the case of such a rapid heating type, the moving pipeline of the body is generally formed in a straight line.

However, since the heat transfer is continuously generated due to the difference between the temperature of the body heated by the heater and the temperature of the water heated by the heater, when the water is supplied out of an appropriate amount or the water is continuously supplied, the supplied water is 100%. Some of the hot water that is not changed into steam and not changed into steam through the steam outlet is generated. In addition, even if a large amount of water is temporarily supplied by supplying a variable amount of pump without supplying a fixed amount of water, hot water is discharged to the steam outlet.

As a conventional steam boiler for solving this, what is disclosed by the publication of patent document 2 is proposed.

As shown in FIGS. 8 and 9, the rapid heating type steam boiler has a moving pipe of water formed therein, and a water inlet 22 and a steam outlet 23 are formed at both ends of the moving pipe and the body. It comprises a heater 25 is built in; The body is divided into a first body (10) and a second body (20) coupled to the first body (10) to form the moving conduit; A packing 30 is provided between the first body 10 and the second body 20 to prevent leakage of the moving pipe; The heater 25 is embedded in the second body 20; A plurality of protrusions 26 protrude from the bottom surface of the moving channel forming part 21 of the second body 20.

By the configuration of the projections 26, it is possible to prevent the rapid movement of water to increase the contact time of the water and the body, and also to increase the heat transfer area of the water and the body to enable stable steam generation.

However, since the body 10, 20 of this steam boiler is made of aluminum and has a large heat loss, steam heating efficiency is significantly low.

In addition, the conventional steam boiler has a complicated mold structure according to the formation of a plurality of projections 26, and the flow path is long, the initial steam generation efficiency due to the delay of the flow is reduced.

In addition, as shown in FIG. 9, in the case of the U-shaped heater 25, more heat is transferred in the returned portion (because the heaters are continuously connected), and the conventional water inlet 22 starts. It is formed in a portion near the end (parallel portion), and the steam efficiency decreases.

In addition, as shown in FIG. 9, the inside of the first body 10 having the water inlet 22 is composed of a simple groove, so that it splashes around while hitting the groove at the time of water injection, so that the movement pipe around the fried place Temperature can be lowered, so that unstable steam supply can be performed.

The present invention has been made in order to solve the above problems, to provide a steam boiler and a steam combined vacuum cleaner employing the same, which can increase the heater thermal efficiency.

Steam boiler of the present invention for achieving the above object is formed with a flow path therein, the body is formed with a water inlet and a steam discharge port on both sides of the flow path, and the heater built in the body, to insulate the body It characterized in that it further comprises a heat insulating case.

Combined vacuum according to another feature of the present invention is a base unit having an air inlet and a steam injection port, a vacuum cleaning unit for collecting dust by collecting dust through the air inlet, and generates steam to inject steam to the steam injection port Including a steam cleaning unit, wherein the steam cleaning unit is a bucket; A steam boiler connected to the steam injection port; The steam boiler comprises a pump for supplying water to the steam boiler, the steam boiler has a flow passage formed therein, a water inlet and a steam discharge port formed at both sides of the flow passage, and a heater embedded in the body. It is made, characterized in that it further comprises a heat insulating case for insulating the body.

According to these configurations, the steam heating efficiency can be increased by heat-insulating the steam boiler with the heat insulating case.

In the above configuration, the heat insulation case is preferably made of a ceramic material.

In addition, the heater has a U-shape, is embedded in the body except for the contact terminal portion, the heat insulation case is a lower heat insulating case formed with two receiving grooves for receiving the contact terminal portion, the water inlet and steam outlet It is preferable that a penetration is formed in communication with the upper insulation case covering the upper surface of the lower insulation case.

On the other hand, the heater has a U-shape, is embedded in the body except for the contact terminal portion, the heat insulating case is a lower heat insulating case formed with two receiving grooves for receiving the contact terminal portion, and the lower heat insulating case It may be implemented by an epoxy molding portion formed on the upper surface of the body.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a perspective view showing a steam combined vacuum cleaner according to a preferred embodiment of the present invention, Figure 2 is a perspective view showing the steam boiler of FIG.

As shown in Figure 1 and 2, the combined steam cleaner of the present embodiment is largely sucked in the dust through the base portion 100 and the air inlet 110 and the air inlet 110 and the steam injection port 263 And a steam cleaning unit 200 for generating steam and spraying steam to the steam injection port 263. In addition, the vacuum cleaning unit and the steam cleaning unit 200 is driven and controlled by the operation switch 500.

The base part 100 has an air suction port 110 in the front and a steam injection port 263 in the rear. A peripheral bottom surface of the steam injection port 263 is formed with, for example, a velcro (not shown) to which a pad or a mop can be attached.

The vacuum cleaning unit is similar to a general vacuum cleaner, and a canister-type main body (not shown) in which a dust collector and a motor are sucked in and collect dust, and one end is connected to the base part 100 to communicate with the air suction port 110. The extension pipe 300 and the handle portion 400 is coupled to the other end of the extension pipe 300, and the suction hose (not shown) for connecting the body (not shown) and the handle portion 400. .

The steam cleaning unit 200 includes a water tank 210, a steam boiler 260 connected to the steam injection port 263, and a pump 230 for supplying water from the water tank 210 to the steam boiler 260. It consists of).

The steam boiler 260 is an instantaneous rapid heater in which the electric heater 270 is built in. The water introduced from the discharge tube 233 of the pump 230 is instantaneously heated to become steam, and the steam is discharged from the steam tube 261. Through the steam injection port 263 is to exit.

As shown in FIGS. 3 to 5, the steam boiler 260 is composed of a first body 260a and a second body 260b having a large appearance. In addition, the packing 30 is installed between the first body 260a and the second body 260b to prevent leakage of the flow path 240.

A first flow path (not shown) corresponding to the second flow path 240 is formed on the bottom surface of the first body 260a. In addition, a water inlet 261a is formed at one side of the first flow path, and a steam outlet 262a is formed at the other side. The water inlet 261a is connected to the discharge tube 233, and the steam outlet 262a is connected to the steam discharge tube 261.

The second flow path 240 described above is formed in a straight line on the top surface of the second body 260b. In addition, the U-shaped heater 270 is built in the second body 260b except for the contact terminal portion.

Due to the configuration of the U-shaped heater 270, the curved portion returned is a place where the thermal contact with the second flow path 240 is greater than the other parallel portion. Therefore, for rapid vaporization during water injection, the water inlet 261a is preferably formed at the returned portion, and the steam outlet 262a is formed near the parallel contact terminal portion 270a.

4, it is preferable that the groove 265 is formed in the flow path facing the water inlet 261a. Since the groove 265 flow-gasses the injected water in a state of stagnation, the water is scattered to the surroundings and the temperature of the location is reduced to the maximum, thereby ensuring a stable and reliable steam supply. can do.

The steam boiler 260 is preferably used in a heat insulating case 290a, 290b as shown in Figure 5, in terms of thermal efficiency. In addition, the heat insulation cases 290a and 290b may be implemented with a ceramic material having good heat insulation and workability.

That is, the heat insulation case 290a, 290b is comprised by the lower heat insulation case 290b and the upper heat insulation case 290a. The upper insulation case 290a is provided with outlet holes 293 and 295 for drawing out the water inlet 261a and the steam outlet 262a, respectively. The lower insulating case 290b has a box shape, and two receiving grooves 291 are formed on one side wall to accommodate the contact terminal portion 270a of the heater 270.

By this configuration, when the body of the steam boiler 260 is accommodated in the lower insulation case (290b) and then covered with the upper insulation case (290a), it is possible to prevent the heat loss due to heat insulation to increase the steam heating efficiency. .

Meanwhile, as shown in FIG. 6, an epoxy molding part 299 may be implemented instead of the upper insulating case 290a. This is to accommodate the body of the steam boiler 260 in the lower insulation case (290b) and then molding the upper surface with epoxy, it is possible to insulate the outside of the body without requiring a separate bonding process.

In addition, in order to prevent foreign matter from being caught in the pump 230 and the steam boiler 260, it is preferable that the filter 220 is installed between the water tank 210 and the inlet tube 231.

The pump 230 and the steam boiler 260 is preferably mounted by a cover 250.

On the other hand, between the base 100 and the extension pipe 300, it is preferable that the steam module mounting pipe 600 equipped with the steam cleaning unit 200 is detachably connected. The steam module mounting pipe 600 is locked when connected to each other like a detachable extension tube in a normal vacuum cleaner, it can be implemented in a structure that is released by pressing each other after pressing the release button 610.

By this steam module mounting pipe 600, the steam cleaning unit 200 can be modularized. In addition, maintenance such as repair or replacement of the steam cleaning unit 200 is convenient.

Steam boiler according to the present invention and the steam combined vacuum cleaner employing the same is not limited to the above embodiment can be carried out in a variety of modifications within the range allowed by the technical idea of the present invention.

As apparent from the above description, according to the steam boiler of the present embodiment and the steam combined vacuum cleaner employing the same, by adopting a heat insulating case that insulates the outside of the body of the steam boiler, it is possible to prevent heat loss and increase steam heating efficiency. .

In addition, by forming an epoxy molding portion on the upper surface of the body accommodated in the lower heat insulating case, it is possible to significantly increase the insulation and assembly process efficiency by completely sealing the outer edge of the body without a separate coupling means.

Claims (7)

A flow path is formed therein, and a water injection hole and a steam discharge port are formed at both sides of the flow path, and the heater is built in the body. Steam boiler characterized in that it further comprises a heat insulating case for insulating the body. The method of claim 1, The heat insulation case is a steam boiler, characterized in that made of a ceramic material. The method of claim 2, The heater is U-shaped, built in the body except for the contact terminal portion, The heat insulating case includes a lower heat insulating case having two receiving grooves accommodating the contact terminal portion, and an upper heat insulating case formed through the communication with the water inlet and the steam outlet to cover the upper surface of the lower heat insulating case. Steam boiler. The method of claim 2, The heater is U-shaped, built in the body except for the contact terminal portion, The heat insulation case is a steam boiler, characterized in that consisting of a lower insulation case formed with two receiving grooves for receiving the contact terminal portion, and an epoxy molding formed on the upper surface of the body accommodated in the lower insulation case. A base unit having an air intake port and a steam injection port, a vacuum cleaning unit for collecting dust by collecting dust through the air intake port, and a steam cleaning unit for generating steam and spraying steam to the steam injection port, The steam cleaning unit is a bucket; A steam boiler connected to the steam injection port; It is composed of a pump for supplying the water of the bucket to the steam boiler, The steam boiler has a flow path formed therein, the body is formed of a water inlet and a steam discharge port formed on both sides of the flow path, and the heater is built in the body, Combined vacuum cleaner further comprises a heat insulating case for insulating the body. The method of claim 5, The heater is U-shaped, built in the body except for the contact terminal portion, The insulation case is made of a ceramic material, The heat insulating case includes a lower heat insulating case having two receiving grooves accommodating the contact terminal portion, and an upper heat insulating case formed through the communication with the water inlet and the steam outlet to cover the upper surface of the lower heat insulating case. Steam boiler. The method of claim 5, The heater is U-shaped, built in the body except for the contact terminal portion, The insulation case is made of a ceramic material, The heat insulation case is a steam boiler, characterized in that consisting of a lower insulating case formed with two receiving grooves for receiving the contact terminal portion, and an epoxy molding formed on the upper surface of the body accommodated in the lower insulating case.

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