KR100813541B1 - Motor assembly and steam vacuum cleaner - Google Patents

Abstract

A motor assembly and a steam vacuum cleaner using the same are provided to efficiently cool a motor by cooling a motor driving unit using the air discharged from an impeller casing as well as using a motor cooling casing. A motor assembly for a steam vacuum cleaner comprises a wet type motor, a motor cooling casing(850), and an impeller casing(830). The wet type motor includes a motor driving unit and an impeller unit. The impeller unit sucks air in the direction of a rotary shaft transmitting power of the motor driving unit. The impeller casing guides the air, which is circumferentially discharged, to the motor driving unit. The motor cooling casing includes a cooling air inlet(853) and a cooling air outlet(855). Air is sucked through the cooling air inlet by a cooling fan of the motor driving unit. Heated air is exhausted through the cooling air outlet.

Description

Motor assembly and steam vacuum cleaner using the same {MOTOR ASSEMBLY AND STEAM VACUUM CLEANER}

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

2 is a rear perspective view of FIG. 1.

3 is an exploded perspective view of the dust collecting container removed from the base assembly;

Figure 4 is an exploded perspective view of the state equipped with a dust collector.

Figure 5a is an exploded perspective view of the dust collecting container.

5b is an exploded perspective view of the auxiliary filter unit;

Figure 6 is a perspective view of the combined dust collecting container except the cover.

Figure 7 is a bottom perspective view of the bottom plate of Figure 6 removed.

8 is an exploded perspective view of the motor unit.

9 is a perspective view of the combination of FIG.

10 is a rear perspective view showing a state of the inside of the main assembly;

11 is a rear perspective view of the water tank removed.

12 is a rear perspective view showing the detachable button of the bucket detachable.

13 is a cross sectional view of FIG. 12.

14 is a rear perspective view of the cover of the exhaust port removed;

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

100: base assembly 110: main body

130: bottom plate 131: suction nozzle

133: steam injection hole 135: mounting surface

140: bumper 150: top cover

160: pass through the groove 161: first through hole

163: second through hole 165: third through hole

167: rib 180: motor mounting groove

190: suction duct 200: dust collecting container

210: dust collector 211: barrel inlet

212: inlet door 213: filter mounting hole (ventilating mechanism)

214: Dust collection room 215,216: Hanging piece

230: (dust collection cover) 235,236: locking jaw

237: lift groove 250: main filter

251 main filter 253 main filter support frame

255: main filter chamber 260: auxiliary filter unit

265: top screen 266: left screen

268: rear screen 270: separator

271: settling groove 273: support

274: fitting 275: pressing piece

277: fitting groove 279: fitting hole

300: neck assembly 310,330: hinge portion

330,340: neck 330: front neck case

340: rear neck case 500: main assembly

510,520 housing 510 front mounting case

513: female nipple 520: rear mounting case

521: fitting protrusion 522: water tank mounting space

523: nipple 525: upper frame

526: lower frame 550: connecting rod mounting pipe

571: bucket 571a: coupling protrusion

571b: water discharge outlet 571c: fitting groove

573 pump 575 instantaneous heater

600: handle bar 700: exhaust

710: filter cover 711: cover plate

712: exhaust hole 713: detachable protrusion

714: coupling groove 715: operating part

730: exhaust groove 800: motor assembly

810: motor 811: motor drive unit

813: impeller portion 815: cooling fan

830 impeller casing 831 cylinder case

833: suction case 835: suction air outlet

837,857: Mounting piece 850: Motor cooling casing

853: cooling air inlet 855: cooling air exhaust

856: wire drawing out 860: flow separation packing

900: water container detachable member 901: piece

903: Packing 910: Joining hole (bottom through hole)

920: guide 930: dome shaped button

931: body portion 933: horizontal extension portion

935: vertical extension 940: push piece

950: departure prevention piece 960: spring

970: upper through hole

Patent Document 1: Korean Utility Model Publication No. 20-0404402

Patent Document 2: Korean Utility Model Registration No. 20-0413652

Patent Document 3: Korean Patent Publication No. 10-2007-0027895

The present invention relates to a motor assembly and a steam vacuum cleaner using the same to improve the cooling efficiency of the motor driving unit by flowing the air sucked by the impeller in the longitudinal direction of the motor driving unit.

Conventionally, what is known by patent document 1, 2, 3 is proposed as a steam vacuum cleaner, for example.

The steam vacuum cleaners of these constituent documents 1, 2, and 3 are all equipped with a dust collector, a suction motor, a steam generator, etc., so that the height of the body becomes high, and it is difficult to clean the bottom of a bed or a sofa.

In addition, the length of the front and rear of the main body is also long, so that the overall contact area touching the floor is difficult to clean due to the frictional resistance when pushing and pulling.

In addition, the blowing air of the suction motor comes out to the rear of the main body, thereby functioning to blow dust at the bottom.

In addition, since the dust collecting container merely performs a function of collecting dust, the filter installed at the suction port of the motor is clogged quickly, so that the cleaning cycle of the filter is quick, which may cause inconvenience.

In addition, the conventional steam vacuum cleaner has a high risk of entering the motor when the steam is sucked during the steam cleaning or / and vacuum cleaning to cause a short.

In addition, the dust collecting container has a shape that is difficult to remove even when the dust collecting container is mounted in the main body or mounted outside.

In addition, since the motor is sucked from the front and discharged to the rear, its cooling efficiency is reduced, so that a motor having a relatively large capacity is used.

The present invention has been made in order to solve the above-described problem, by using the air discharged by the suction again to the motor cooling to obtain a large suction efficiency with a small capacity to realize the miniaturization of the wet motor and steam using the same Its purpose is to provide a vacuum cleaner.

The steam vacuum cleaner motor assembly of the present invention for achieving the above object is a wet motor having a motor driving portion, and an impeller portion suctioned in the rotation axis direction receiving power of the motor driving portion and discharged in the circumferential direction; Impeller casing for inducing to discharge the air discharged in the circumferential direction toward the motor driving portion.

Steam vacuum cleaner according to another feature of the present invention is a dust collection container connected to the suction nozzle, and the base assembly is equipped with a suction motor for sucking the vacuum through the suction nozzle; A main assembly mounted with a steam generator connected to the steam injection hole; A neck assembly pivotably connecting the main assembly to the base assembly,

The suction motor may include a wet motor having a motor driving part and an impeller part suctioned in a direction of a rotation axis receiving power of the motor driving part and discharged in a circumferential direction; It characterized in that it is composed of an impeller casing to induce the air discharged in the circumferential direction toward the motor drive.

According to this configuration, large suction efficiency can be obtained with a small capacity by using the air discharged by suction again for cooling the motor, so that the wet motor can be miniaturized.

In the above-described configuration, if a motor cooling casing having a cooling inlet suctioned by the cooling fan of the motor driving unit and a cooling exhaust port for exhausting the heated air is further installed, it is possible to further maximize the cooling efficiency of the motor driving unit to further promote lightweight miniaturization. .

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

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

As shown in Fig. 1 and Fig. 2, the steam vacuum cleaner of this embodiment is composed of a base assembly 100, a main assembly 500, and a neck assembly 300 connecting them.

In addition, it is preferable that the handle bar 600, which is adjustable in length, is detachably installed in the pipe 550 described later in the main assembly 500. Handle bar 600 is composed of an extension rod and the handle.

As shown in FIGS. 3, 4, and 7, the base assembly 100 includes a main body 110 including a bottom plate 130 and an upper cover 150, and a vacuum cleaner mounted on the main body 110. It consists of.

As shown in FIG. 3, the bottom plate 130 has a suction nozzle 131 at the front and a steam injection hole 133 at the rear.

Velcro-type attachment surface 135 to which a pad is to be attached is formed at the bottom of the steam injection hole 133.

A steam generator 570 is connected to the steam injection hole 133.

It is preferable that the bumper 140 made of an elastic material such as rubber or plastic is installed at the front edge of the bottom plate 130 because the main body 110 may be broken against a wall or the like when cleaning, and the damage such as cracking or the like may be suppressed as much as possible. .

A dust collecting container mounting groove 160 in which the dust collecting container 200 is mounted is formed on the front upper surface of the upper cover 150, and a motor mounting groove 180 in which the suction motor 800 is mounted on the rear lower surface of the upper cover 150. ) Is formed.

A suction duct 190 is installed on the front surface of the dust collector mounting groove 160 to connect the suction nozzle 131 and the inlet 211 of the dust collector 210 to be described later.

In addition, a first through hole 161 in which the impeller casing 830 of the suction motor 800 is disposed is disposed on the rear surface of the dust collecting slot 160, the cooling air inlet 853 and the cooling air exhaust 855 which will be described later. The second through hole 163 and the third through hole 165 is disposed is formed.

In addition, it is preferable that the rib 167 is formed in the dust collecting slot 160. The rib 167 has a function of allowing the dust collecting container 210 to be tightly fitted to some extent, and giving a gap to some extent between the inner circumferential surface of the dust collecting container mounting groove 160 and the outer circumferential surface of the dust collecting container 210.

Therefore, the gap functions to allow the cool air to enter the cooling air inlet 853 and to allow the hot air of the cooling air exhaust port 855 to exit smoothly.

In particular, since the cooling air exhaust mechanism 855 is disposed toward the rear surface of the dust collecting member mounting groove 160, hot air collides with the dust collecting member mounting groove 160.

Therefore, it is possible to reduce noise when discharged into the air, and to minimize dust dispersion on the bottom surface to be cleaned by the discharged air.

In addition, hollow hinge parts 310 and 320 are formed at both rear sides of the upper cover 150.

Hinge 310, 320 is in communication with the motor mounting groove 180. In addition, the neck assembly 300 described below is pivotally coupled to the hinge portions 310 and 320.

Therefore, the suction air from the motor assembly 800 passes through the hinge parts 310 and 320 and the neck cases 330 and 340 of the neck assembly 300 in the motor mounting groove 180. It is discharged to the outside through the exhaust port 700 of.

4 to 6, the dust collecting container 200, a dust collecting container 210 detachably mounted in the dust collecting container mounting groove 160, and a cover for opening and closing the upper portion of the dust collecting container 210 ( 230).

The cover 230 is provided at the top to prevent leakage even if water or steam is sucked in.

The front surface of the dust collecting container 210 is formed with the inlet 211 is connected to the duct 190, the filter mounting hole 213 is mounted on the back of the dust collecting container 210, the main filter unit 250 is formed have.

It is preferable that the door 212 is installed in the inflow opening 211. The door 212 is opened by the force of air sucked in, and closed by gravity when the force is canceled.

Therefore, when the cleaning or the like is not carried out, it is possible to block dust from escaping from the inlet port 211.

In addition, the filter mounting hole 213 functions as a venting mechanism 213 through which air passing through the main filter part 250 flows to the suction motor.

In addition, locking pieces 215 and 216 are provided on the front and rear surfaces of the dust collecting container 210. Correspondingly, engaging jaws 235 and 236 are provided on the front and rear surfaces of the cover 230.

The locking pieces 215 and 216 are pivotably provided on both sides of the center of the dust collecting tube 210.

A spring is interposed below the support shaft and a stopper is formed above.

Therefore, when the lower locking piece (215 or 216) is pressed, the spring is compressed and the locking jaw (235 or 236) is released through the action of the seesaw popping up, and when the pressing is released by the force of the spring Restore it back to its original position.

The stopper serves as a guide for preventing the locking pieces 215 and 216 from being excessively rotated by the elasticity of the spring, so as to be in a parallel restoration position.

The locking jaw 235 is formed of a locking jaw 235a and a support piece 235b supporting the locking jaw 235a.

In particular, the support piece 235b is comprised by the rib form. This rib-shaped support piece 235b is handled because the locking jaw 235a is locked with the locking piece 215 so that the contact with the dust collecting container 210 is a line contact so that a large amount of force is not required when detaching the rib. It is convenient.

As such, the locking pieces 215 and 216 are hinged, and when the cover 230 is fastened to the dust collecting container 210, the locking pieces 215 and 216 are pushed downward, and when the cover pieces are pushed down, the locking pieces 215 or 216 are pressed and the cover is pressed. Swinging 230 toward the locking piece 215 or 216 opens.

Therefore, the user can open and close the cover easily and smoothly, and troubles such as dust of the dust collecting container can be prevented when the cover is opened.

The dust collecting container 200 is convenient when the cover 230 is mounted to be exposed to the outside.

In addition, in order to further facilitate the removal of the dust collecting container 200, the lift groove 237 is preferably formed on the left and right sides of the cover 230. The lift groove 237 has a groove about one finger, and is shaped like an inverted 'A' blocked at the top of the groove.

In the dust collector 210, the main filter unit 250 is mounted to the mounting hole 215.

The main filter unit 250 is composed of a main filter 251 and a filter support frame 253 supporting the main filter 251.

The main filter 251 functions to filter the air having passed through the dust collecting container to the motor assembly 800. The main filter 251 is made of a cloth material and is covered with and fixed to the filter support frame 253.

In addition, it is preferable that the auxiliary filter unit 260 is installed in the dust collecting container 210.

As shown in FIG. 5A, the auxiliary filter unit 260 has a rectangular shape, and the front surface 261 and the lower surface 263 are blocked, and screens are installed on the upper surface 265, the left surface 266, and the rear surface 268. The right side 267 is open.

The front surface 261 and the lower surface 263 are disposed so as to face the upper portion of the inlet 211 so that the dust, particularly large dust is accumulated in a portion other than the front surface 261 and the lower surface 263. It is preferable at the point of induction.

In addition, the right side surface 267 is preferably disposed toward the main filter unit 250.

In addition, the upper surface 265 and the rear surface 268 may be implemented detachably as shown in Figure 5b. That is, the detachable protrusions 265a and 268a formed on the upper screen 256 and the rear screen 268 are detached to the detachable grooves 265b and 268b formed on the frame of the auxiliary filter unit 260. This is convenient when assembling or cleaning.

Of course, the front surface 261, the lower surface 263, and the left side 266 can also be separated separately, and the front surface 261 and the lower surface 263 can also take the form of a screen.

In addition, the sub-filter unit 260 may be implemented in a form (trapezoid) having a larger surface area from the left side to the right side, thereby improving the suction discharge efficiency by eliminating the bottleneck of the air flow.

Therefore, since the large dust or fine dust accumulated in the dust collecting container 210 is evenly distributed or evenly distributed around the auxiliary filter unit 260, it can be used without being emptied for a long time, and in particular, the dust to the main filter 215 is blocked. The effect of suppressing the phenomenon as much as possible eliminates the need for frequent dust cleaning.

The auxiliary filter unit 260 is supported by the separating plate 270 and the support 273 separating the mounting chamber 255 and the dust collecting chamber 213 on which the main filter unit 250 is mounted.

The separating plate 270 may be provided with a mounting groove 271 in which one side lower surface of the auxiliary filter unit 261 is seated.

The fitting protrusion 274 is formed at the upper end of the support 273, and the fitting hole 279 formed at the left side of the auxiliary filter unit 260 is inserted and supported.

In addition, in order to prevent the separation from the upper side of the sub-filter unit 260, the inner surface of the cover 230, the pressing piece 257 for pressing the upper right side surface 269 of the sub-filter unit 260, and the fitting protrusion ( 274 is coupled to the fitting groove 277 is formed to press the fitting hole (279).

As shown in FIGS. 8 and 9, the motor assembly 800 includes a motor 810, an impeller casing 830, and a motor cooling casing 850.

The motor 810 is comprised by the motor drive part 811 which has a cooling fan, and the impeller part 813 to which the power of this motor drive part 811 is transmitted. This motor 810 is mounted in the motor mounting groove 180, as shown in FIG.

The impeller 813 sucks air in the direction of the center of rotation and exhausts it in the circumferential direction, and prevents moisture or the like of the motor driving part 811 from penetrating.

The impeller casing 830 consists of a circumferential case 831 surrounding the impeller 813, a suction case 833 connected to the first through hole 161, and an outlet 835 formed in the circumferential case 831. It is.

Since the outlet 835 is formed in a direction perpendicular to the circumferential direction, the air discharged to the outlet 835 passes along the longitudinal direction of the motor driving unit 811, so that the cooling efficiency can be increased. Since the cooling efficiency can be increased, the motor 810 having a relatively small capacity can be used, and thus small size, light weight, and low noise can be realized.

In addition, it is preferable that the motor cooling casing 850 is further installed in the motor driving unit 810.

On the circumferential surface of the motor cooling casing 850, a cooling air suction port 853 connected to the second through hole 163 and a cooling air exhaust port 855 connected to the third through hole 165 are preferably formed. .

That is, when the cooling fan 815 of the motor driving unit 810 rotates, the cool air inlet 885 is sucked in the cool air in the main body 110. The cold intake air flows toward the cooling fan 815 and deprives heat of generation. The heated air is discharged by hitting the dust collector 210 of the barrel mounting groove 160 through the cooling air vent 855.

By the cooling flow of the motor driving unit 810, even if the size of the motor 810 is reduced, the efficiency is high and can be sucked to the required capacity.

In addition, since warm air collides with the dust collector 210 and is exhausted, there is an effect of preventing dust dispersion on the bottom surface and reducing noise.

On the other hand, between the motor driving unit 810 and the motor cooling casing 850, the flow separation packing 860 is preferably further installed.

That is, when cool air flows into the motor casing 850, the flowed air flows into the motor driving unit 810, and the warm air flowing therein comes out to the outer circumferential surface of the motor driving unit 810 to cool the air exhaust system. By discharging to 855, it is possible to further increase the cooling efficiency by preventing the inlet air and the outlet air meet each other.

In particular, since the motor cooling casing 850 is made of a transparent material, as shown in FIG. 9, the assembly of the flow separation packing 860 may be visually inspected.

The suction case 833 and the motor cooling casing 850 are provided with mounting pieces 837 and 857 to be mounted to the motor mounting groove 180. The motor cooling casing 850 is provided with a wire drawing hole 856 for applying power to the motor.

As shown in FIG. 10, the neck assembly 300 includes a fork-shaped neck portion 300. Neck portion 300 is divided into a front neck case 330 and a rear neck case 340. Both ends of the neck portion 300 are coupled to the hinge portions 310 and 320, and the upper ends thereof are coupled to the mounting cases 510 and 520.

The neck cases 330 and 340 have a hollow cylindrical shape, and function as guide passages for guiding air exhausted from the motor to the exhaust part 700 of the main assembly 500 described later.

In addition, the inside of each of the neck cases 330 and 340 is disposed a wire connecting the PCB and the motor 800 mounted on the main assembly 500, and connects the heater 575 and the steam injection hole 133 The tube is placed.

In addition, the front mounting case 510 is formed with a partition 529 separating the space between the PCB and the steam generator 570, so that the exhaust air does not flow toward the PCB.

In addition, as shown in FIG. 10, the front neck case 330 is integrally formed with the front mounting case 510 of the main assembly 500, and the rear neck case 340 is separated from the rear mounting case 520. It is.

Accordingly, the rear mounting case 520 is first assembled to the front mounting case 510 and then the rear neck case 340 is assembled to the front neck case 330. Steps are formed at the bottom of the rear mounting case 520 on the outer side, and steps are formed on the inner side at the top of the rear neck case 340, and the steps may be assembled after facing each other.

By such an assembly structure, the rear neck case 340 and the rear mounting case 520 is separated separately, so that only the rear mounting case 520 can be disassembled and repaired when the PCB, steam generating unit 570, etc., need repair. Therefore, after-sales can be improved.

The main assembly 500 includes housings 510 and 520 which are divided into a front mounting case 510 and a rear mounting case 520 forming an external shape, and a steam generator 570 mounted on the housings 510 and 520.

The front mounting case 510 is equipped with a steam generator 570 and a PCB, except for the bucket 571. The bucket 571 is detachably mounted to the rear mounting case 520.

The steam generator 570 includes a bucket 571, a pump 573 for pumping water from the bucket 571, and a heater 575 for heating the pumped water to generate steam. The heater 575 is a heater of the instantaneous heating method.

The bucket 571 is detachably mounted to the mounting space 522 formed on the outer surface of the rear mounting case 520.

The upper surface of the water tank 571 is provided with a engaging projection 571a receiving an elastic force toward the surface, and the water discharge port 571b is provided on the lower surface.

Coupling protrusion 571a is a protrusion which is elastically projected to protrude toward the surface side by a spring built in the casing of the water tank 571.

When the water tank 571 is mounted in the mounting space 522, the engaging projection 571b is inserted into the engaging hole 910, and the water inlet 571b is connected to the nipple 523. The male nipple 523 is fitted to the female nipple 513 connected to the pump 573.

Accordingly, when the front mounting case 510 and the rear mounting case 520 are fastened, the male nipple 513 is automatically connected to the female nipple 513, thereby improving assembly and connection.

In addition, the rear surface of the bucket 571 is formed with a fitting groove 571c into which the fitting protrusion 521 formed in the mounting space 522 is provided, thereby providing a firm mounting.

In addition, attachment and detachment of the water tank 571 is performed by the detachable member 900 provided in the back mounting case 520.

12 and 13, the dome-shaped button 930 surrounding the outside and the inside of the guide 920 protruding from the rear mounting case 520 and the bucket 571 are coupled to each other, as shown in FIGS. 12 and 13. Between the push piece 940 which pushes the protrusion 571a, the escape prevention piece 950 which prevents the release of the button 930 and the push piece 940, and the escape prevention piece 950 and the push piece 940 between. It consists of the spring 960 interposed in.

The button 930 is disposed in the upper through hole 970 formed in the upper frame 525 of the rear mounting case 520, the push piece 940 is a lower portion formed in the lower frame 526 of the rear mounting case 520 It is arranged in the through hole 910. Therefore, a space portion 527 is formed between the upper frame 525 and the lower frame 526 in which the separation preventing piece 950 is disposed.

Due to the formation of the upper frame 525 and the lower frame 526, the mounting space portion 527 of the detachable member 900 is formed on the inner surface of the rear mounting case 520, while the bucket mounting space portion 522 on the outer surface thereof. ) Is formed, it is preferable in terms of utilization of the mounting space of the water tank 571 and the removable member (900).

The button 930 includes a body portion 931, a horizontal extension portion 933 protruding horizontally from the body portion 931, and a vertical extension portion vertically protruding from the free end of the horizontal extension portion 933 ( 935) is a dome type.

In this dome type, not only the groove 937 between the horizontal extension portion 933 and the vertical extension portion 935 surrounds the outside and the inside of the guide 920, but also the guide 920 is the upper frame 525. Protrude upward).

Therefore, when water is sprayed for the electric shock test, water may penetrate into the through hole 970 to prevent the water from entering the housings 510 and 520 to prevent an accident such as an electric shock.

The separation preventing piece 950 prevents the upper end thereof from being caught by the upper frame 525.

The button 930, the push piece 940 and the release preventing piece 950 are preferably integrated into the piece 901.

It is also desirable to insert the packing 903 into the central cavity of the button 930 to prevent water from seeping into the piece 901.

Looking at the action of the detachable member 900, the mounting bucket 571 is coupled to the engaging projection 571a is inserted into the through hole 910. In this state, pressing the button 930 pushes the engaging projection 571a toward the pushing piece 940 while descending along the guide 920. Since the engaging projection 571a is inclined at the portion pushed by the milling piece 940, when the engaging projection 571a is pushed by the inclined portion, the water tank 571 automatically comes forward and is easily separated.

Therefore, the coupling protrusion 571a is separated from the through hole 910, and can be easily separated by pulling the bucket 571.

10, 11, and 14, the exhaust part 700 includes an exhaust groove 730 formed in the rear mounting case 520, a filter 720 mounted in the exhaust groove 730, and The filter cover 710 opens and closes the exhaust groove 730.

Since the exhaust groove 730 is in communication with the front mounting case 510, it is preferable that a net-shaped frame is formed to prevent the filter 720 from being separated.

The filter 720 uses the HEPA filter 720 to filter out fine dust and at the same time to exhaust the exhaust gas to the outside while absorbing the exhaust gas, thereby reducing the speed of the discharged air and reducing the noise, due to the discharged air. Dust can be prevented from scattering. In particular, since the exhaust part 700 is disposed in the main assembly 500, the exhaust part 700 is far from the bottom, and there is almost no fear of dust on the bottom.

The filter cover 710 includes a cover plate 711 having an exhaust hole 712, a detachment protrusion 713 formed on the upper and lower surfaces of the cover plate 711, and an operation unit 715 for operating the detachment protrusion 713. ).

Desorption protrusion 713 is detached to the coupling groove 714 formed on the upper and lower inner peripheral surface of the exhaust groove (730).

The operation part 715 is comprised by the switch which pulls in and detaches the detachment protrusion 713 toward the cover plate 711, and the spring which releases this detachment protrusion 713 again toward the surface when this switch is released. The function of the actuating part 715 is similar to that of the detachable member 900 of the bucket 571.

The motor assembly and the steam vacuum cleaner using the same according to the present invention are not limited to the above-described embodiments, and can be variously modified within the range allowed by the technical idea of the present invention. For example, the above-described steam vacuum cleaner is composed of a base assembly, a neck assembly, three main assemblies, but it will be apparent to those skilled in the art that the steam vacuum cleaner can be implemented as two base assemblies and two push rod assemblies. That is, the push rod assembly may be provided with a push rod whose end is pivotally supported by the base assembly, and the steam generator 570 may be installed on the push rod, and a dust collecting path may be realized through the outside or the inside of the push rod.

As apparent from the above description, the motor assembly and the steam vacuum cleaner using the same have the following effects.

Since the air sucked by the impeller casing is discharged while cooling the motor driving section, and the motor cooling casing cools the motor driving section itself, the motor cooling efficiency can be remarkably improved. Therefore, a small capacity wet motor (about the size of a dry motor) can be used in place of a wet motor having a larger capacity than a dry motor (relatively larger in size), so that a small size, light weight, and low noise can be realized. Can be.

Claims (3)

A wet motor having a motor driving part and an impeller part suctioned in a direction of a rotation axis receiving power of the motor driving part and discharged in a circumferential direction; The steam vacuum cleaner motor assembly comprising an impeller casing for guiding the air discharged in the circumferential direction toward the motor drive unit. The method of claim 1, And a motor cooling casing having a cooling inlet suctioned by the cooling fan of the motor driving unit and a cooling exhaust port for exhausting the heated air. A base assembly to which a dust collecting container connected to a suction nozzle and a suction motor for vacuuming air through the suction nozzle are mounted; A main assembly mounted with a steam generator connected to the steam injection hole; A neck assembly pivotably connecting the main assembly to the base assembly, The suction motor is A wet motor having a motor driving part and an impeller part suctioned in a direction of a rotation axis receiving power of the motor driving part and discharged in a circumferential direction; A steam vacuum cleaner comprising an impeller casing for guiding the air discharged in the circumferential direction to be discharged toward the motor driving part.

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