KR100577277B1 - Vacuum cleaner - Google Patents

Abstract

The present invention relates to a vacuum cleaner for separating foreign matter using the cyclone principle. The present invention provides a fan-motor assembly for forcibly flowing the introduced air; A motor fixing part installed on an upper portion of the fan-motor assembly; An upper motor cover having an upper suction port communicating with a motor suction hole formed in the fan-motor assembly, and coupled to the motor fixing part; It is provided on the inner side of the upper motor cover, to provide a vacuum cleaner comprising a noise prevention projection to reduce the flow noise of the air.

According to the present invention, there is an effect to reduce the flow noise of the air flowing into the fan-motor assembly in the dust collector.

Vacuum cleaner, dust collector, cleaner body, dust collector, noise prevention protrusion

Description

Vacuum Cleaner

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

Figure 2 is an exploded perspective view showing a separate vacuum cleaner according to the present invention.

Figure 3 is an exploded perspective view showing a separate dust collector of the vacuum cleaner according to the present invention.

Figure 4 is a perspective view showing an upper portion of the dust collecting container provided in the vacuum cleaner according to the present invention.

Figure 5 is a longitudinal cross-sectional view of the dust collector provided in the vacuum cleaner according to the present invention.

6 is a longitudinal sectional view of the vacuum cleaner according to the present invention;

Figure 7 is a bottom perspective view of the upper motor cover according to the present invention.

<Description of Symbols for Major Parts of Drawings>

100: cleaner body 175: upper motor cover

177: Anti-noise protrusion 200: Dust collector

210: lower panel 211: coupling boss

212: boundary wall 213: primary dust storage unit

214: primary dust separator 215: secondary dust separator

216: secondary dust storage unit 217: outlet portion

218: guide rib 219: shatterproof member

220: dust collecting container 221: third exhaust port

225: dust collection cover 230: upper cover

240: guide wing 250: dust collector handle

260: Panel control device

The present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner for separating foreign matter from the introduced air using the cyclone principle.

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 device 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 unit accommodating unit for accommodating the dust collecting apparatus.

And, the cleaner body is provided with a cleaner handle that can carry the cleaner body. 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 that the flow noise is increased by sudden change of the air flow path when air is introduced from the dust collector to the air suction device.

The present invention is to solve the above problems, an object of the present invention is to provide a vacuum cleaner that can reduce the flow noise.

In order to achieve the above object, the present invention provides a fan-motor assembly for forcibly flowing the introduced air; A motor fixing part installed on an upper portion of the fan-motor assembly; An upper motor cover having an upper suction port communicating with a motor suction hole formed in the fan-motor assembly, and coupled to the motor fixing part; It is provided on the inner side of the upper motor cover, to provide a vacuum cleaner comprising a noise prevention projection to reduce the flow noise of the air.

The noise preventing protrusion may be formed to protrude randomly regardless of the flow direction of the air.

The noise preventing protrusion may be formed to protrude densely around the upper suction port.

On the other hand, the vacuum cleaner is preferably configured to further include a sealing member for maintaining the airtight between the upper motor cover and the motor fixing portion.

Hereinafter, with reference to the accompanying drawings, it will be described in detail a preferred embodiment of the vacuum cleaner according to the present invention.

1 is a perspective view showing the appearance of a vacuum cleaner according to the present invention, Figure 2 is an exploded perspective view showing a separate vacuum cleaner according to the present invention.

1 and 2, the vacuum cleaner according to the present invention moves along the floor to be cleaned while suction nozzles (not shown) for sucking air containing foreign substances, and the cleaner body 100 provided separately from the suction nozzles. And a connecting pipe (not shown) which interconnects the suction nozzle and the cleaner body 100 and simultaneously guides the air sucked from the suction nozzle to the cleaner body 100.

Here, a nozzle suction port (not shown) of a predetermined size is formed at the bottom of the suction nozzle, and foreign matter accumulated on the bottom is sucked into the cleaner body together with air.

The front portion of the cleaner body is in communication with the suction nozzle, the main body suction opening 162 for introducing air into the interior of the cleaner body, the main body exhaust port for discharging air to the outside of the cleaner body on one side of the cleaner body (Not shown) is provided.

In addition, a cleaner handle 161 is provided at the upper end of the cleaner body so as to carry the cleaner body, and at both rear sides of the cleaner body 100, wheels may be used to smoothly move the bottom surface of the cleaner body 100. 110 are rotatably mounted respectively. A caster (not shown) of rotating material is connected to the bottom front portion of the cleaner body 100 to change the direction of the cleaner body 100.

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

In addition, an inside of the cleaner main body 100 is provided with an electric part (not shown) for controlling the vacuum cleaner, and a fan-motor assembly 130 for suctioning and forcedly flowing air into the cleaner main body.

The fan-motor assembly 130 is accommodated in the cylindrical motor chamber 133 having an open top, and the motor chamber 133 is installed in the lower case 120 of the cleaner body.

More specifically, the motor cover 131 is installed on the upper portion of the motor chamber 133 to reduce the vibration of the fan-motor assembly. The motor fixing part 134 is installed on the motor cover 131 to fix the motor cover 131 and the fan-motor assembly 130 to the motor chamber 133. Of course, the lower case 120 is provided with a motor chamber installation unit (not shown) in which the lower portion of the motor chamber is installed.

In addition, the upper case 160 is provided with a suction passage (not shown) for guiding the air sucked from the outside into the dust collector 200, and a first suction hole 165 communicating with the dust collector at the end of the suction passage. Is provided.

In addition, the upper case is provided with a coupling guide 121 for guiding the direction in which the dust collecting apparatus is coupled, and a locking groove 125 is formed so that the rear of the dust collecting apparatus is coupled to the cleaner body. The coupling guide corresponds to a coupling boss (not shown) of the dust collector, and the locking groove corresponds to a locking portion (not shown) provided at the lower end of the handle of the dust collector.

On the other hand, the upper case 160 is provided with an exhaust passage (not shown) for guiding the air passing through the dust collector 200 into the motor chamber 133. One end of the exhaust passage is provided with a first exhaust port 163 in communication with the dust collector 200, and the other end of the exhaust passage communicates with a motor inlet 130a formed in the fan-motor assembly.

In addition, an exhaust chamber 140 through which the air passing through the motor chamber is discharged is provided at the side of the motor chamber 133. The exhaust chamber 140 is provided with an exhaust filter (not shown) for filtering out foreign substances contained in the air again before the air passing through the motor chamber is discharged to the outside.

The exhaust filter (not shown) preferably uses a hepa filter for filtering fine dust. In addition, the exhaust filter (not shown) is installed in a filter support member (not shown), and the filter support member (not shown) is detachably attached to the inside of the exhaust chamber to facilitate replacement of the exhaust filter (not shown). Possibly combined. The air passing through the filter is discharged to the outside through a main body exhaust port (not shown) formed in the exhaust chamber cover 141.

In addition, the cord reel 150 is installed at the rear of the motor chamber. The cord reel 150 functions to wind and store a connection cord provided to supply power to the cleaner body. In addition, the central axis of the cord reel is perpendicular to the ground, and one side of the cord reel is provided with a cord reel button 151 for controlling the operation of the cord reel.

3 is an exploded perspective view showing the dust collecting apparatus according to the present invention separately, Figure 4 is a perspective view showing the upper portion of the dust collecting container according to the present invention. 5 is a longitudinal sectional view of the dust collector according to the present invention.

2 to 5, the dust collecting apparatus 200 according to the present invention includes a dust collecting container 220 having a substantially cylindrical shape, and an upper cover 230 detachably coupled with the dust collecting container 220. do.

Here, the dust collecting container 220 is provided with primary dust collecting parts 213 and 214 and secondary dust collecting parts 215 and 216 to separate and collect foreign substances such as dust, and a lower panel that can be opened and closed at the bottom of the dust collecting container 220. 210 is provided.

The primary dust collectors 213 and 214 may include a primary dust separator 214 and a primary dust storage unit 213, and the primary dust separator 214 may include a dust container 220. It consists of a substantially cylindrical container provided inside. In addition, the secondary dust collecting unit (215, 216) is provided around the primary dust collecting unit secondary dust separator 215 and the secondary dust storage unit for separating the foreign matter contained in the air discharged from the primary dust collecting unit ( 216). In the present invention, it is preferable that the primary dust separator 214 and the secondary dust separator 215 separate foreign matter in a cyclone manner.

In more detail, the primary dust separator 214 has a cylindrical container shape with an open bottom, and is installed inside the dust collecting container while having the same central axis as the central axis of the dust collecting container 220. In addition, a second suction port 214a communicating with the first suction port 165 of FIG. 2 is formed at the upper side of the primary dust separator 214.

Here, the second suction port 214a guides the contaminated air introduced from the outside in the tangential direction of the primary dust separator 214. More specifically, one side of the second suction port is provided with a guide rib 218 to allow the air flowing into the second suction port 214a to spiral flow along the inner wall of the primary dust separation unit 214. .

Then, the air passing through the primary dust separator 214 is discharged through the second exhaust port 214b formed at the center of the ceiling of the primary dust separator 214, and the air discharged from the second exhaust port 214b. Is introduced into the secondary dust separator 215.

The secondary dust separator 215 is circumferentially arranged around the upper portion of the primary dust separator 214 and is integrally formed with the outer wall of the dust collecting container 210. The secondary dust separator 215 is formed with a cone-shaped cone portion 215c whose diameter 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 dust separator 215. The foreign matter discharge port 215d discharged is formed.

On the other hand, a part of the side surface of the secondary dust separation unit 215 protruding to the upper portion of the primary dust separation unit 214 is cut in the vertical direction, the third suction port 215a communicating with the second exhaust port 214b. ).

In addition, the third suction port 215a guides the air discharged from the second exhaust port 214b to the inner wall of the secondary dust separator 215 in a tangential direction, so that the introduced air is introduced into the secondary dust separator. 215 serves to enable spiral flow along the inner wall.

Here, the secondary dust separators 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 dust separators 215.

In addition, the dust collecting container 220 may further include a dust collecting container cover 225 provided to be opened and closed on the upper part of the secondary dust separators 215, and the dust collecting container cover 225 is The air discharged from the second exhaust port 214b is guided to the secondary dust separator 215 more smoothly.

At the edge of the dust container cover 255, third exhaust ports 221 through which the air passing through the respective secondary dust separators are discharged are formed.

The dust separated by the primary dust separator 214 and the secondary dust separator 215 configured as described above is a dust storage unit formed by the outer wall of the dust collecting container 220 and the lower panel 210 ( After being stored in 213 and 216, the lower panel 210 is discharged to the outside by gravity when opened. In addition, the lower panel 210 is controlled by a panel control device 260 installed on the side of the dust collecting container.

The dust storage unit is composed of the above-described primary dust storage unit 213 and the secondary dust storage unit 216, the primary dust storage unit 213 is separated from the primary dust separation unit 214 The dust is stored, and the secondary dust storage unit 216 stores the dust separated from the secondary dust separator 215.

Here, the primary dust storage unit 213 and the secondary dust storage unit 216 are partitioned by the boundary wall 212 extending downward from the secondary dust separator 215. More specifically, the lower end of the boundary wall 212 is formed longer than the lower end of the primary dust separation unit 214, the bottom of the dust collecting container 220, that is, the upper surface of the lower panel 210 Extends. Accordingly, the boundary wall 212 prevents the primary dust storage unit 213 and the secondary dust storage unit 216 from communicating with each other.

The boundary wall 212 is preferably configured to be curved in the circumferential direction. The reason is to prevent the dust stored in the primary dust storage unit 213 from being scattered by the spiral flow formed in the primary dust separation unit 214.

In addition to the above configuration, the inside of the dust collecting container according to the present invention is installed perpendicular to the inside of the primary dust separation unit 214, a plurality of communication with the second exhaust port of the primary dust separation unit 214 An outlet portion 217 having through holes formed therein is provided. In addition, the above-described guide rib 218 also serves to prevent the air flowing into the second suction port 214a from directly flowing into the outlet 217.

Here, the outlet portion 217 is provided in the center of the primary dust separator 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 the diameter becomes smaller toward the bottom. desirable.

The reason is that the speed of the spiral flow decreases toward the lower side of the primary dust separation unit 214, so that the dust falling along the inner wall of the primary dust separation unit 214 is the suction force of the outlet 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 213 to scatter. The scattering prevention member 219 functions to prevent the dust collected in the primary dust storage unit from entering the secondary dust separator 215.

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

And, the side wall of the dust collecting container is provided with a guide wing 240 for guiding the coupling direction of the dust collecting device when the dust collecting device is coupled to the cleaner body. In addition, the guide wing 240 serves to prevent foreign matter from entering the space generated between the cleaner body and the dust collector. The guide wing 240 is provided around the bottom of the first guide wing 241 and the dust collecting device protruding in the direction in which the dust collector 200 is coupled to guide the direction in which the dust collector is coupled It comprises a guide wing (243).

The protrusion length of the first guide wing 241 increases from the top of the dust collector to the bottom thereof, and the protrusion length of the second guide wing 243 increases from the front of the dust collector to the rear thereof. This is to ensure that the dust collector is installed in close contact with the cleaner body when coupled to the cleaner body.

That is, when the dust collector 200 is in close contact with the cleaner body, even when an impact is applied to the cleaner body, the dust collector 200 is stably maintained without being shaken.

In addition, a sealing member may be provided between the first guide wing 241 and the cleaner body 100 to maintain airtightness. In addition, the first guide wing 241 and the second guide wing 243 are integrally provided on the sidewall of the dust collector. Of course, the first guide wing and the second guide wing may be separately provided on the sidewall of the dust collector.

On the other hand, the side of the dust collecting container is provided with a dust collecting device handle 250 that can carry the dust collecting device (200). The lower portion of the dust collector handle 250 is provided with a connecting lever 251 for coupling the dust collector with the cleaner body.

The connecting lever 251 is composed of a lever body 253 having a predetermined angle and a bent bending portion 253a and a locking portion 255 formed at the end of the lever body. The bending part 253a is hinged to the dust collector handle 250 and the lever body 253 is supported by an elastic member (not shown) provided in the dust collector handle.

When the lever body 253 rotates around the bending part 253a, the locking part 255 moves in the vertical direction to separate and couple the dust collector 200 to the cleaner body.

In addition, the upper cover 230 is detachably coupled to the upper portion of the dust collecting container. The upper cover 230 is provided with a filter housing 231 in communication with the dust collecting container, and the filter housing 231 is provided with a dust collecting filter 231a for filtering again the air passing through the dust collecting container 220. . The air passing through the dust collecting filter is introduced into the cleaner body through the fourth exhaust port 235 provided in the upper cover 230.

The first coupling protrusion 233 protrudes from both side surfaces of the upper cover in a direction in which the dust collector is coupled. The first coupling protrusion is inserted into a coupling groove (not shown) provided in the cleaner body to couple the dust collector and the cleaner body.

Of course, the first coupling protrusion may be formed in the upper case of the cleaner body, and the coupling groove may be formed in the upper cover of the dust collector. In addition, the first coupling portion may be hook-type fastening, rather than coupling the protrusion and the groove.

In addition, a coupling boss 211 is provided on the bottom of the lower panel forming the bottom of the dust collecting container, and the coupling boss 211 corresponds to the coupling guide 121 provided in the cleaner body 100.

 The coupling boss 211 serves to guide the dust collector to be correctly coupled to the cleaner body while moving along the coupling guide 121 when the dust collector is coupled to the cleaner body.

Referring to Figures 1 to 5, the operation of the vacuum cleaner having an embodiment of the above-described dust collector according to the present invention will be described.

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

Air flowing into the primary dust separator 214 through the second inlet 214a is not directly introduced into the outlet 217 by the guide rib 218, but the primary dust separator 214 It is guided tangentially to the inner wall of the spiral to form a spiral flow.

Accordingly, the dust, which is relatively heavy and large in weight, is separated and descended according to the cyclone principle, and is stored in the primary dust storage unit 213, 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 212.

In addition, the air from which the relatively large dusts are separated is discharged to the second exhaust port 214b communicating with the plurality of through holes formed on the side of the outlet 217, and then flows into the plurality of secondary dust separators 215. The dust is separated again.

Air from which relatively small dusts are separated from the secondary dust separator 215 is introduced into the upper cover 230 through the third exhaust mechanism 215b.

The air introduced into the upper cover 230 is filtered by the dust collecting filter 231a and then discharged forward through the fourth exhaust port 235 formed in front of the upper cover. Then, the air discharged from the fourth exhaust port 235 is sucked into the fan-motor assembly of the cleaner body via the first exhaust port 163 of the cleaner body, and the air passing through the fan-motor assembly is predetermined. Passed through the flow path to the side of the cleaner body.

6 is a longitudinal cross-sectional view of the cleaner body according to the present invention, Figure 7 is a bottom perspective view of the upper motor cover according to the present invention.

2, 6, and 7, the cleaner body 100 includes a fan-motor assembly 130 that sucks air and forcibly flows the air, and the fan-motor assembly 130 includes foreign substances contained in the air. It is in communication with the dust collector 200 for separating the.

In addition, a motor cover 131 is installed on an upper portion of the fan-motor assembly 130 to prevent vibration of the motor, and a motor height for fixing the fan-motor assembly is mounted on an upper portion of the motor cover 131. The government 134 is installed.

In addition, an upper motor cover 175 coupled to the motor fixing part is provided at an upper portion of the motor fixing part 134. More specifically, the motor fixing part 134 is coupled to the fan-motor assembly 130 and the motor cover 131 by the upper motor cover 175 formed integrally with the upper case 160 to provide a fan-motor assembly. It plays a role of not being shaken.

On the other hand, the upper motor cover 175 is formed with an upper inlet 175a communicating with the fan-motor inlet 130a formed in the fan-motor assembly. In addition, the inner surface of the upper motor cover 175 is provided with a noise preventing protrusion 177 for reducing the flow noise of the air flowing into the fan-motor assembly from the dust collector. Of course, the noise prevention protrusion 177 also serves to reinforce the strength of the upper motor cover 175.

The noise preventing protrusion 177 protrudes from the inner side surface of the upper motor cover 175 toward the fan-motor assembly 130. More specifically, the noise preventing protrusion 177 is formed to protrude randomly regardless of the flow direction of the air. Of course, the noise prevention protrusion 177 may be formed to protrude along the direction of the air flow.

In addition, the noise preventing protrusion 177 is preferably formed to be concentrated around the upper suction port 175a. This is because the flow noise is increased in the vicinity of the motor inlet 130a by changing the flow path before the air introduced through the upper inlet 175a enters the motor inlet 130a of the fan-motor assembly. Of course, the noise prevention protrusion 177 may be uniformly formed on the inner surface of the upper motor cover 175.

In addition, a sealing member for maintaining airtightness between the upper motor cover 175 and the motor fixing part 134 may be installed. The sealing member prevents leakage of air flowing into the fan-motor assembly, thereby improving dust collecting performance of the cleaner and reducing noise.

On the other hand, the cleaner main body 100 is provided with a flow path guide 170 to allow the air discharged from the dust collector 200 to the fan-motor assembly 130 to form a curved flow path.

More specifically, the flow path guide 170 connects the upper motor cover 175 positioned on the fan-motor assembly and the first exhaust port 163 of the dust collector. In addition, the flow guide 170 is smoothly curved while having a constant curvature, and preferably has a constant flow path cross-sectional area.

This is because, if the air flow path has a bent portion or the cross-sectional area of the air flow path changes, the flow resistance increases as the air moves along the flow path guide, and flow noise is generated.

In addition, a support rib 171 having a predetermined shape protrudes outward from an outer lower end of the flow path guide. The support rib 171 supports the damper 173 installed on the upper motor cover 175.

The damper 173 serves to allow air to flow into the fan-motor assembly 130 when an air flow path is blocked in a predetermined region. More specifically, when the air flow path is blocked before the air flows into the fan-motor assembly 130, the damper 173 serves to introduce the air inside the cleaner body into the fan-motor assembly 130. do.

In addition, the air passing through the fan-motor assembly passes through the exhaust chamber before being discharged to the outside. At this time, when the air flow path is blocked by the exhaust chamber (not shown) or the exhaust filter (not shown) provided in the exhaust chamber, the control (not shown) provided in the cleaner body operates the fan-motor assembly 130. To stop. Here, it is the flow path sensor 174 provided in the upper motor cover that determines whether the air flow path is blocked by the exhaust chamber or the exhaust filter.

That is, the flow path sensor 174 detects this when the air flow before being discharged to the outside from the fan-motor assembly is blocked and serves to reduce the load of the motor by stopping the operation of the fan-motor assembly.

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, there is an advantage that can reduce the flow noise of the air flowing into the fan-motor assembly from the dust collector by forming a noise preventing protrusion on the upper motor cover installed on the upper portion of the fan-motor assembly.

Second, there is an advantage that the strength of the upper motor cover is increased by providing a noise prevention protrusion of a predetermined shape in the upper motor cover of the present invention.

Claims (4)

A fan-motor assembly for forcibly flowing the introduced air; A motor fixing part installed on an upper portion of the fan-motor assembly; An upper motor cover having an upper suction port communicating with a motor suction hole formed in the fan-motor assembly, and coupled to the motor fixing part; It is provided on the inner side of the upper motor cover, the vacuum cleaner comprising a noise preventing projection for reducing the flow noise of the air. The method of claim 1, The anti-noise protrusion is a vacuum cleaner, characterized in that protruding randomly irrespective of the flow direction of the air. The method according to claim 1 or 2, The anti-noise protrusion is a vacuum cleaner, characterized in that protrudingly formed around the upper suction port The method of claim 3, The vacuum cleaner further comprises a sealing member for maintaining the airtightness between the upper motor cover and the motor fixing portion.

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