KR100628082B1 - Vacuum cleaner - Google Patents

Abstract

The present invention relates to a vacuum cleaner for improving dust collection performance. The present invention provides a fan-motor assembly for sucking and forced air flow, a dust collecting unit for separating foreign matter from the air introduced by the fan-motor assembly, a fan-motor housing accommodating the fan-motor assembly, and the fan-motor housing. It provides a vacuum cleaner comprising a body lower case provided with a housing mounting portion to be installed, and a sealing member for maintaining the airtightness between the fan-motor housing and the housing mounting portion.

According to the present invention, by providing a sealing member between the fan motor housing and the housing mounting portion, there is an effect that can improve the airtightness of the cleaner body.

Vacuum Cleaners, Fan-Motor Assemblies, Fan-Motor Housings, Sealing Elements

Description

Vacuum Cleaner

1 is a perspective view showing a cleaner body of a vacuum cleaner according to the present invention

Figure 2 is a perspective view showing the dust collector and the cleaner body separately provided in the vacuum cleaner according to the present invention

3 is a longitudinal sectional view showing a cleaner body of a vacuum cleaner according to the present invention;

Figure 4 is a longitudinal cross-sectional view showing an embodiment of the dust collector provided in the vacuum cleaner according to the present invention

5 is a plan view showing a lower body case provided in the vacuum cleaner according to the present invention;

Figure 6 is a perspective view showing an embodiment of a fan-motor housing provided in the vacuum cleaner according to the present invention

7 is a top perspective view showing a state in which the fan-motor housing is installed in the lower case of the main body provided in the vacuum cleaner according to the present invention;

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

100: cleaner body 200: dust collector

110: hose connection 120: wheel

130: caster 140: motor-fan assembly

145: sealing member 150: lower case

151: housing mounting portion 160: main body outlet

170: guide member 180: HEPA filter

190: fan-motor housing 191: main chamber

193: communication hole 195: auxiliary chamber

210: dust collecting container 211: lower panel

212: primary dust storage unit 213: secondary dust storage unit

214: primary cyclone portion 215: secondary cyclone portion

216: boundary wall 217: outlet

218: guide rib 219: shatterproof member

220: dust collecting cover 230: upper cover

The present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner that can increase the dust collection performance.

Conventional vacuum cleaners include a suction nozzle for suctioning foreign substances such as dust accumulated on the floor, a cleaner main body provided with a dust collecting container for separating and collecting foreign substances, and a connection pipe for guiding foreign substances sucked from the suction nozzle to the cleaner main body. It is configured to include.

Here, the cleaner main body is provided with an air suction device for generating an air suction force, and a predetermined position of the cleaner main body is provided with a dust collecting container mounting portion for mounting the dust collecting container.

In addition, one driving wheel is provided at each of both rear sides of the cleaner body, and a caster of a rotating material for changing the direction of the cleaner body is provided at the front surface of the bottom of the cleaner body.

However, the above-described conventional vacuum cleaner has a problem in that the airtightness of the cleaner main body provided with the air suction device is not maintained and dust collection performance is lowered.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a vacuum cleaner that can efficiently maintain the airtightness inside the vacuum cleaner.

In order to achieve the above object, the present invention provides a fan-motor assembly for sucking the air by forced flow; A dust collecting unit separating foreign matters from the air introduced by the fan-motor assembly; A fan-motor housing containing the fan-motor assembly; A main body lower case provided with a housing installation unit in which the fan-motor housing is installed; And, it provides a vacuum cleaner comprising a sealing member for maintaining the airtightness between the fan-motor housing and the housing installation.

The housing installation portion is provided with an opening having a predetermined shape, the opening preferably corresponds to the discharge port of the fan-motor housing.

One of the edges of the opening or the bottom surface of the fan-motor housing is provided with a sealing member insertion groove into which the sealing member is inserted, and the other has a housing protrusion corresponding to the sealing member insertion groove. Do.

It is preferable that a filter member for filtering the air discharged from the fan-motor housing is installed below the housing installation part.

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

1 to 3, a canister type vacuum cleaner will be described as an embodiment of a vacuum cleaner according to the present invention.

The vacuum cleaner moves along the floor to be cleaned, and a suction nozzle (not shown) that sucks air containing foreign substances, a cleaner body 100 provided separately from the suction nozzle, and the suction nozzle and the cleaner body 100. And a connection pipe (not shown) for guiding the contaminated air sucked from the suction nozzle to the cleaner body 100 at the same time.

Here, a nozzle suction port (not shown) of a predetermined size is formed in the bottom of the suction nozzle, and sucks the foreign matter accumulated on the floor together with the air by the air suction force generated by the air suction device built in the cleaner body 100. .

In addition, the cleaner main body 100 includes an electric unit (not shown) for controlling the vacuum cleaner and a motor-fan assembly 140 constituting the air suction device.

In more detail, the front end of the cleaner body 100 is provided with a hose connecting portion 110 to which the connecting pipe is connected, the rear of both sides of the cleaner body 100, the cleaner body 100 is the bottom surface The wheels 120 are rotatably mounted to each other so as to smoothly move, and a caster 130 of a rotating material for changing the direction of the cleaner body 100 is located at the bottom front of the cleaner body 100. Is connected.

In addition, the dust collector 200 is detachably mounted to the front portion of the cleaner body 100. The dust collecting device functions to separate and collect the foreign matter from the air sucked from the suction nozzle.

On the other hand, the connecting pipe is an extension pipe made of a rigid material connected to the suction nozzle, a connection hose made of a flexible material connected to the extension pipe, and connected to a hose connection part 110 provided at the front of the cleaner body 100, and the It comprises a connector handle provided in the extension pipe.

Referring to Figure 3, the front of the cleaner body is installed detachably a dust collector 200 for removing the foreign matter from the incoming air. In addition, a fan-motor assembly 140 is installed at the rear of the cleaner body to force the air inside the cleaner body.

The fan-motor assembly 140 is accommodated in the cylindrical fan-motor housing 190 having an open top, and the fan-motor housing 190 is installed in the lower case 150 of the cleaner body.

In more detail, a fan motor housing cover 143 having a suction port 143a of a predetermined shape communicating with the dust collector 200 is installed on the fan-motor housing. In addition, the lower case 150 has a housing installation part 151 to which the fan-motor housing is installed.

Meanwhile, a main body outlet 160 for discharging air downward is formed at the lower side of the fan-motor housing 190, that is, the lower case 150 of the cleaner body.

In addition, the bottom of the lower case 150 in which the main body outlet 160 is formed, that is, the bottom of the cleaner main body 100, guides air discharged from the main body outlet 160 to flow downward. It is preferable that the guide member 170 discharged to the rear of the cleaner body 100 is provided.

The reason is that when the air is directly discharged downward toward the floor from which the air is cleaned through the main body outlet 160, dust of the floor is scattered.

In addition, a filter member for filtering air discharged from the fan-motor housing is installed under the fan-motor housing. In more detail, the filter member is installed at the front end of the main body outlet (160).

In addition, the filter member preferably uses a hepa filter 180 for filtering fine dust, and the hepa filter 180 is supported by the guide member 170 to prevent separation.

4, an embodiment of a dust collecting apparatus provided in the vacuum cleaner according to the present invention will be described.

The dust collector 200 may include a substantially cylindrical dust collecting container 210, one end of the dust collecting container 210, and more specifically, a dust collecting container cover 220 that opens and closes an upper end of the dust collecting container 210. Removably coupled to the dust container cover 220, and comprises a top cover 230 provided with a dust collector handle 231 on the upper surface.

Here, the dust collecting container 210 is provided with a primary dust collecting part and a secondary dust collecting part for separating and collecting foreign substances such as dust, and the bottom of the dust collecting container 210 is composed of an openable lower panel 211. .

The primary dust collecting part includes a primary dust separating part and a primary dust storing part 212, and is formed of a substantially cylindrical container provided inside the dust collecting container 210.

The secondary dust collecting unit may include a secondary dust separating unit and a secondary dust storage unit 213 provided around the primary dust collecting unit to separate foreign substances contained in air discharged from the primary dust collecting unit. .

In the present invention, the primary dust separation unit and the secondary dust separation unit, each of the primary cyclone unit 214 and a plurality of small secondary cyclone unit 215 for separating foreign matter in a cyclone method It is composed.

In more detail, the primary cyclone portion 214 is a cylindrical container shape of which the lower end is opened, and a first suction port 214a communicating with the hose connecting portion 110 (see FIG. 3) is formed at an upper side thereof. The first exhaust port 214b penetrated in the vertical direction is formed at the center of the ceiling of the primary cyclone portion 214.

Here, the first suction port 214a guides the contaminated air introduced from the outside in the tangential direction of the primary cyclone part so that air introduced into the first suction port 214a is in the primary cyclone part 214. It is configured to make a spiral flow along the inner wall of the.

In addition, on the upper portion of the primary cyclone portion 214, the small secondary cyclone portions 215 formed integrally with the outer wall of the dust collecting container 210 are circumferentially arranged around the upper portion of the primary cyclone portion. It is arranged in the direction, the upper end of each of the secondary cyclone portion 215 is formed to protrude a predetermined height from the upper end of the primary cyclone portion 214.

On the other hand, a part of the side surface of each of the secondary cyclone portion 215 protruding to the upper portion of the primary cyclone portion 214 is cut in the vertical direction, the second suction port communicating with the first exhaust port (214b) 215a is formed.

In more detail, the second inlet 215a is configured to allow the air flowing into the second inlet 215a to spirally flow along the inner wall of the secondary cyclone unit 215. Air discharged from 214b is guided tangentially to the inner wall of the secondary cyclone portion 215.

The secondary cyclone portion 215 has a cone-shaped cone portion 215d, the diameter of which decreases toward the bottom surface of the dust collecting container, and foreign substances such as dust are disposed on the lower end of the secondary cyclone portion 215. The foreign matter discharge port 215e penetrates up and down to be discharged is formed.

Here, the secondary cyclone portions 215 adjacent to each other are integrally formed so as to be in contact with each other, so that air does not flow between the secondary cyclone portions 215.

In addition, the dust collecting container 210 may further include a dust collecting container cover 220 that is provided to be opened and closed on the upper portion of the secondary cyclone parts 215, and the dust collecting container cover 220 is The air discharged from the first exhaust port 214b is guided to the secondary cyclone portion 215 more smoothly.

Second exhaust ports 215b through which the air passing through the respective secondary cyclones are discharged are formed at the edges of the dust container cover 220.

The dust separated from the primary cyclone part 214 and the secondary cyclone part 215 configured as described above is a dust storage part formed by the outer wall of the dust collecting container 210 and the lower panel 211. After being stored, the lower panel 211 is opened and discharged to the outside by gravity.

The dust storage unit is composed of the above-described primary dust storage unit 212 and the secondary dust storage unit 213, the primary dust storage unit 212 is separated from the primary cyclone unit 214 The dust is stored, and the secondary dust storage unit 213 stores the dust separated from the secondary cyclone unit 215.

Here, the primary dust storage unit 212 and the secondary dust storage unit 213 is integrally connected to the lower portion of the secondary cyclone portion 215 and a substantially cylindrical having a smaller radius than the outer wall of the dust collecting container. It is partitioned into a shape boundary wall 216.

The lower end of the boundary wall 216 is formed longer than the lower end of the primary cyclone portion 214, and extends to the bottom of the dust collecting container 210, that is, the upper surface of the lower panel 211. Accordingly, the boundary wall 216 prevents the primary dust storage unit 212 and the secondary dust storage unit 213 from communicating with each other.

In addition, the boundary wall 216 is preferably configured to be curved in the circumferential direction. The reason is to prevent the dust stored in the primary dust storage unit 212 from being scattered by the spiral flow due to the spiral flow formed in the primary cyclone portion 214.

In addition to the above configuration, the vacuum cleaner according to the present invention is provided perpendicularly to the inside of the primary cyclone portion 214, the plurality of through holes communicating with the first exhaust port of the primary cyclone portion 214 It further comprises a formed outlet portion 217, and a guide rib 218 provided in the primary cyclone portion 214 to guide the air flowing into the first inlet 214a.

Here, the outlet portion 217 is provided in the center of the primary cyclone portion 214 in the axial direction, the upper end is open and the lower end is in a closed shape, it is made of a substantially conical shape that becomes smaller toward the bottom. desirable.

The reason is that the speed of the spiral flow decreases toward the lower side of the primary cyclone portion 214, so that the dust falling along the inner wall of the primary cyclone portion 214 is the suction force of the outlet portion 217. To be unaffected by

In addition, the lower portion of the outlet portion 217 is preferably provided with a scattering preventing member 219 to prevent the dust stored in the primary dust storage unit 212 to scatter. The scattering preventing member 219 prevents dust collected in the primary dust storage unit from rising by the spiral flow and entering the secondary cyclone unit 215.

To this end, the scattering preventing member 219 is preferably formed integrally with the lower end of the outlet portion 217 to extend radially. In addition, the upper surface of the scattering preventing member 219 is more preferably inclined downward. In more detail, the scattering prevention member 219 is formed in a cone shape in which the diameter becomes larger toward the bottom.

The guide rib 218 guides the air flowing into the first suction port 214a in the tangential direction of the inner wall of the primary cyclone part 214, so that the air flowing into the first suction port 214a flows. Configured to prevent direct entry into the outlet 217.

On the other hand, the upper part of the dust collecting container is provided with a dust collecting container cover 220 for opening and closing the dust collecting container. In addition, the upper cover 230 is detachably coupled to the upper portion of the dust container cover 220. The upper cover 230 includes a cover housing 235 having a dust collector handle 231 capable of carrying a dust collector and a filter housing (not shown) installed inside the cover housing 235. .

Referring to the operation of the vacuum cleaner having an embodiment of the above-described dust collector according to the present invention.

First, when the vacuum cleaner is operated, external polluted air is introduced into the primary cyclone unit 214 through a suction nozzle (not shown) and a connection pipe (not shown).

The air flowing into the primary cyclone portion 214 is not directly introduced into the outlet portion 217 by the first suction port 214a and the guide rib 218, but the primary cyclone portion ( The inner wall of the 214 is tangentially guided to form a spiral flow.

Accordingly, the dust having a relatively heavy weight and large dusts are separated and lowered by the cyclone principle, and are stored in the primary dust storage unit 212, and the dust stored in the primary dust storage unit is scattering prevention member 219. And the scattering is prevented by the curved boundary wall 216.

In addition, the air from which the relatively large dusts are separated is discharged to the first exhaust port 214b communicating with the plurality of holes formed on the side of the outlet portion 217 and then to the plurality of secondary cyclone portions 215. It enters and goes through the dust separation process again.

Air from which relatively small dusts are separated from the secondary cyclone portion 215 is introduced into the upper cover 230 through the second exhaust mechanism 215b.

After the air flowing into the upper cover 230 is filtered by the filter, the air is discharged backward through the third exhaust port 233, and the air discharged from the third exhaust port 233 is the cleaner body 100. It passes through the predetermined flow path provided in the rear of the fan-motor assembly 140 and the rear of the cleaner body 100.

5 to 7, the structure of the fan-motor housing and the lower case of the main body will be described in detail.

The main body lower case 150 includes a housing installation unit 151 in which the fan-motor housing is installed, and a circular protrusion 153 protruding upward from the housing installation unit 151 is formed. A connection protrusion 155 is formed at the center of the protrusion 153 to protrude downward of the cleaner body to connect the caster.

The housing installation part 151 has a first opening 151b corresponding to the outlet of the fan motor housing, and a sealing member insertion groove 151a is formed at the edge of the first opening. A sealing member 145 is inserted into the sealing member insertion groove 151a to maintain the airtightness between the fan-motor housing 190 and the housing installation unit 151.

Of course, the sealing member insertion groove may be provided outside the bottom surface of the fan-motor housing, and the housing protrusion corresponding to the sealing member insertion groove may be formed at an edge of the first opening. In addition, the shape of the first opening may be modified according to the shape of the discharge port of the fan-motor housing.

The outlet of the fan-motor housing 190 includes a chamber exhaust hole 191c and a second opening (not shown) respectively formed in the main chamber 191 and the auxiliary chamber 195 constituting the fan-motor housing. .

Meanwhile, as described above, the fan-motor housing 190 includes a main chamber 191 for receiving the fan-motor assembly 140 in an inner space and an auxiliary chamber 195 formed outside the main chamber. do. A housing protrusion 191e (see FIG. 3) corresponding to the sealing member insertion groove 151a is formed at the bottom of the fan-motor housing. The housing protrusion 191e maintains the airtightness between the fan-motor housing 190 and the housing installation part 151 by compressing the sealing member 145.

An upper portion of the main chamber 191 is opened, and a communication hole 193 communicating with the auxiliary chamber 195 is formed on an outer wall of the main chamber 191. At least one communication hole 193 is formed, and preferably has a grille shape.

A fan-motor installation part 191a is formed at the bottom center of the main chamber 191 to install a lower part of the fan-motor assembly. A chamber exhaust hole having a predetermined shape is located near the fan-motor installation part 191a. 191c is formed. The chamber exhaust hole 191c corresponds to a passage through which air introduced into the main chamber 191 is discharged to the outside of the fan-motor housing 190.

At least one first housing boss 191b for coupling the fan-motor assembly 140 with the fan-motor housing 190 is formed at a predetermined position on the bottom of the main chamber 191. In addition, a second housing boss 191d for coupling the fan-motor housing 190 to the lower case of the cleaner body is formed outside the main chamber.

A control unit (not shown) for controlling the fan-motor assembly 140 is installed at one inner side of the main chamber 191. More specifically, the control unit is installed in the control unit installation groove 197 formed in the main chamber.

Of course, the control unit installation groove may be formed outside the fan-motor housing, and the control unit may be installed. The main chamber 191 has a substantially cylindrical shape, but the present invention is not limited thereto, and may have a polygonal pillar including a square pillar.

At least one auxiliary chamber 195 is formed outside the main chamber 191 and communicates with the main chamber 191 by the communication hole 193. In addition, an upper portion of the auxiliary chamber is closed, and a second opening (not shown) through which the air sucked into the auxiliary chamber is discharged is formed in the lower portion of the auxiliary chamber. More specifically, the second opening (not shown) is formed such that the entire lower portion of the auxiliary chamber is opened, and the height of the auxiliary chamber is lower than the height of the main chamber.

Referring to the flow of air entering the fan-motor housing is as follows.

When the fan-motor is operated, the air discharged from the dust collector is sucked into the fan-motor housing 190 through a housing inlet formed in the fan-motor housing cover. Then, a part of the air sucked into the main chamber 191 is discharged to the outside of the fan-motor housing 190 through the chamber exhaust hole 191c formed in the bottom of the main chamber 191.

The rest of the air sucked into the main chamber enters the auxiliary chamber 195 via the communication hole 193, and then is discharged to the outside of the fan-motor housing 190 through the lower portion of the auxiliary chamber.

At this time, since the sealing member 145 is installed between the housing installation unit 151 and the fan-motor housing 190, all air introduced into the fan-motor housing is formed in the housing installation unit 151. It is discharged to the outside through the first opening 151b.

The present invention is not limited to the above-described embodiments, and those skilled in the art can make modifications without departing from the spirit of the present invention, and such modifications are within the scope of the present invention.

The effect of the vacuum cleaner according to the present invention described above is as follows.

First, according to the present invention, there is an advantage of improving the airtightness of the cleaner body by providing a sealing member between the fan-motor housing and the housing mounting portion.

Second, according to the present invention, there is an advantage that can increase the dust collecting performance more efficiently by improving the airtightness of the cleaner body.

Claims (4)

A fan-motor assembly for sucking air and forcing it to flow; A dust collecting unit separating foreign matters from the air introduced by the fan-motor assembly; A fan-motor housing containing the fan-motor assembly; A main body lower case provided with a housing installation unit in which the fan-motor housing is installed; And, And a sealing member for maintaining the airtightness between the fan-motor housing and the housing mounting portion. The method of claim 1, The housing mounting portion is provided with an opening having a predetermined shape, wherein the opening corresponds to the discharge port of the fan-motor housing. The method of claim 2,  One of the edges of the opening or the bottom surface of the fan-motor housing is provided with a sealing member insertion groove into which the sealing member is inserted, and the other has a housing protrusion corresponding to the sealing member insertion groove. Vacuum cleaner. The method according to any one of claims 1 to 3, A vacuum cleaner, characterized in that the filter member for filtering the air discharged from the fan-motor housing is installed below the housing installation portion.

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