KR100631571B1 - Suction head of vacuum cleaner - Google Patents

Abstract

The present invention relates to a suction head of a vacuum cleaner, comprising: a casing having an accommodation space formed therein and a suction port communicating with the accommodation space at a bottom thereof; A brush rotatably coupled to the casing inside the suction port; A centrifugal fan having a plurality of radially formed at the ends of the brush, the fan blades interlocked with the brush, and a discharge side communicating with the receiving space; And a side suction part configured to downwardly open at one side of the suction port to distinguish the suction port, and guide the suction flow path to the vicinity of the center of the centrifugal fan. Characterized in that configured to include. As a result, the suction force generated in the centrifugal direction by the rotation of the centrifugal fan is added to the suction force of the forced air by the vacuum, so that a stronger suction force acts toward the opening of the side suction part, so that the cleaning can be performed cleanly without a blind spot on the corner cleaning surface. In addition to saving energy, it is possible to save the driving of the cleaner.

Description

Suction head for vacuum cleaner {SUCTION HEAD FOR VACUUM CLEANER}

1 is a perspective view of a vacuum cleaner having a suction head according to the prior art,

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

3 is a perspective view of a vacuum cleaner having a suction head according to an embodiment of the present invention;

4 is a partial cross-sectional view of the suction head of FIG.

5 is a perspective view showing a combination of the centrifugal fan and the brush of FIG.

6 is an operation cross-sectional view showing the cleaning using the suction head of Figure 3 with respect to the corner cleaning surface,

7 is a cross-sectional view of the suction head of the vacuum cleaner according to another embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

100: suction head 111: casing

114: rotating body 115: brush

119: through hole 160: side suction

170: centrifugal fan 171: fan blade

172: plate 180: opening and closing plate

The present invention relates to a suction head of a vacuum cleaner, and more particularly, to a suction head of a vacuum cleaner for improving side suction input to easily remove dust accumulated on a corner cleaning surface.

In general, the vacuum cleaner is a device for cleaning by forcibly suctioning the dust accumulated on the cleaning surface by forming a dust collecting chamber by a vacuum fan.

As such an example, a description will be given with reference to FIGS. 1 and 2 with the upright vacuum cleaner. As shown in FIG. 1, a conventional upright vacuum cleaner includes a suction head 10 that rolls along a cleaning surface and sucks dust from the cleaning surface, and is installed on an upper portion of the suction head 10. Body portion 20 rotatably coupled to (10), the handle portion 30 extending from the body portion 20, and the suction pipe 40 for connecting the suction head 10 and the body portion 20 )

The body portion 20 is detachably installed through a cylindrical case frame 21 having a front opening and an opening formed at one side of the case frame 21, and is formed from a mixture of air and dust from the suction pipe 40. The dust collecting container 22 including the filter 23 to filter only dust and dirt, a fan motor (not shown) generating suction force, and the air passing through the filter 23 under the dust collecting container 22 are filtered out. A discharge port 24 to be discharged is provided.

As shown in FIG. 2, the suction head 10 includes a cover 11 having a suction port 13 formed at a bottom thereof so as to communicate with the accommodation space 12 while forming an accommodation space 12. A cylindrical rotary body 14 rotatably coupled to 11 and a brush 15 spirally arranged around the rotary body 14 are provided.

As a result, the user moves the suction head 10 along the cleaning surface by pushing or pulling the handle part 30 in a standing position, and the brush 15 rotates to force the dust accumulated on the cleaning surface to be forced. At the same time, dust and air are forcibly sucked into the suction nozzle (not shown) by the suction force formed in the body portion 20 to perform cleaning.

However, since the suction force of the suction port 13 is not uniform over the entire area, the cleaning ability is affected by the flow rate passing through the suction port 13, in particular, the suction force toward both side ends of the suction head far from the suction nozzle. This tends to be lowered. In particular, the place where the cleaning surface meets the upper and lower walls, such as the corner of the suction head 10 in accordance with the mounting of the cover 11 or the brush 15, the suction section is not made properly (W in Fig. 2 And the dirt and dirt 50 accumulated therein is difficult to remove because the air flow is weakened.

In order to solve this problem, an example has been disclosed in which a side slit for suction is provided on a side of the suction head or a separate suction guide device is provided for side cleaning. For example, there is US Patent Publication No. 20040148731 for a separate corner cleaning device, US Patent No. 4,499,628 for a side cleaning suction nozzle, etc., but the invention is to induce the side cleaning using only the main suction force of the cleaner side There is a problem that it is difficult to expect a relative increase in suction power during cleaning.

The present invention has been made in view of the above, an object of the present invention is to provide a suction head of a vacuum cleaner to improve the side suction force of the suction head to easily remove dust accumulated on the corner cleaning surface. have.

In order to achieve the above object, the present invention, the receiving space is formed inside and the casing provided with a suction port in communication with the receiving space on the bottom; A brush rotatably coupled to the casing inside the suction port; A centrifugal fan having a plurality of radially formed at the ends of the brush, the fan blades interlocked with the brush, and a discharge side communicating with the receiving space; And a side suction part configured to downwardly open at one side of the suction port to distinguish the suction port, and guide the suction flow path to the vicinity of the center of the centrifugal fan. It provides a suction head of the vacuum cleaner, characterized in that configured to include.

In this case, it is preferable that a diaphragm is further provided between the rotating body of the brush and the fan blade to prevent air from flowing into the center side of the fan blade from the suction port.

In addition, bosses are formed on both sides of the casing to support both ends of the rotating shafts of the brush and the centrifugal fan, and through holes are formed to allow air guided by the side suction unit to pass around the boss.

It is preferable that the opening and closing plate is further provided to be able to slide the side suction portion to open and close the flow path of the side suction portion.

The side suction part is preferably formed integrally with the casing.

Hereinafter, the suction head of the vacuum cleaner according to the present invention will be described in detail according to the embodiment shown in the accompanying drawings.

Figure 3 is a perspective view of a vacuum cleaner having a suction head according to an embodiment of the present invention, Figure 4 is a partial cross-sectional view of the suction head of Figure 3, Figure 5 is a perspective view showing a combination of the centrifugal fan and the brush of Figure 3 6 is an operation cross-sectional view showing a cleaning state using the suction head of FIG. 3 with respect to the corner cleaning surface, and FIG. 7 is a cross-sectional view of the suction head of the vacuum cleaner according to another embodiment of the present invention. However, detailed descriptions of the same or similar parts as described above in the present embodiment will be omitted.

As shown in these figures, the suction head 100 according to the present embodiment, the housing 111 is formed therein, the casing 111 is provided with a suction port 113 in communication with the accommodation space 112 on the bottom surface. And a brush 115 spirally arranged around the rotating body 114 that is rotatably coupled to the casing 111 inside the suction port 113, and at the ends of the rotating body 114 and the brush 115. A centrifugal is formed in the radial direction from the rotation axis of the rotary body 114 and has a fan blade 171 rotated in conjunction with the rotary body 114 and the brush 115, the discharge side is in communication with the receiving space 112 The fan 170 is provided.

In addition, one side or both sides of the suction port 113 is provided with a side suction unit 160 which is downwardly opened to distinguish the suction port 113 and guides the suction channel to the vicinity of the center of the centrifugal fan 170. At this time, the side suction unit 160, as shown, may be in the form of a channel parallel to the side wall of the casing 111, preferably may be formed integrally with the casing 111 to reduce the production cost.

Through-hole 119 toward the center of the centrifugal fan 170 from the inside of the side suction portion 160 around the boss 118 that supports the rotation shaft 114a of the centrifugal fan 170 and the brush 115. Is formed.

In order to prevent the air from flowing directly from the suction port 113 to the suction side of the centrifugal fan 170 by the rotation of the fan blade 171 during side or corner cleaning, the fan blade 171 and the brush 115 and the rotating body A diaphragm 172 may be provided between the 114 portions.

Hereinafter, the operation of the suction head of the vacuum cleaner according to the present embodiment will be described.

As shown in Figure 6, when the rotary body 114 is automatically rotated by the rotation of the manual or the motor during the operation of the vacuum cleaner, the fan blade 171 rotates while the side suction unit 160 and the through hole ( The mixture of air and dust guided to the center by 119 is moved in the centrifugal direction to be directed to the suction nozzle 16 together with the air passing through the suction port 113.

Dust on the side of the suction head 100 is to use a strong suction force to pass through the side suction unit 119 rather than the suction port 113. That is, the suction force generated in the centrifugal direction by the rotation of the centrifugal fan 170 is added to the opening of the side suction unit 160 in addition to the forced suction force of the air formed by the vacuum state formed in the body portion 20 of the vacuum cleaner. It is a principle that a stronger suction force is formed.

In particular, the centrifugal fan 170 generally utilizes another type of fan for forcibly flowing air, for example, a difference in pressure between the suction side and the discharge side is larger than that of the four-flow type or the axial flow type. In addition, as in the present invention, it is advantageous to remove the dust of the corner cleaning surface by a strong suction pressure.

Figure 7 shows another embodiment according to the present invention, and the opening and closing plate 180 is slidably coupled to the side suction portion 190 to open and close the flow path of the side suction portion 190. In order to adjust the position of the opening and closing plate 180, the stopper 180a protruding from a predetermined position of the opening and closing plate 180 is provided. Other configurations or functions apply to the description of the above-described embodiments.

As a result, the opening and closing plate 180 is slid to the general cleaning surface having a large area to close the flow path of the side suction unit 190, and the main suction port 113 can be used for cleaning, and the opening and closing plate 180 is used for the corner cleaning surface. The side suction part 190 can be used by sliding the side suction part 190 so that the side suction part 190 can be used according to the state of the cleaning surface.

As described above with reference to the drawings illustrating the suction head of the vacuum cleaner according to the present invention, the present invention is not limited by the embodiments and drawings disclosed herein, but within the scope of the technical idea of the present invention Various modifications can be made by those skilled in the art.

As described above, according to the suction head of the vacuum cleaner of the present invention, an accommodation space 112 is formed therein, and a casing 111 having an intake port 113 communicating with the accommodation space 112 at a bottom thereof, and an intake port ( The inner side of the 113 is provided with a brush 115 rotatably coupled to the casing 111, and the fan blade 171 is formed in the radial direction at the end of the brush 115 and interlocked with the brush 115, Centrifugal fan 170, the discharge side is communicated to the receiving space 112, and the side suction to open the suction flow path to the vicinity of the center of the centrifugal fan 170 is opened downwardly differently from the suction port 113 on one side of the suction port 113 By providing the unit 160, the suction force generated in the centrifugal direction by the rotation of the centrifugal fan 170 in addition to the forced suction force of the air by the vacuum of the motor fan is added to the stronger side toward the opening of the side suction unit 160 As the suction force is working, Only without the square on the clean surface to clean as it can save the operation of the vacuum cleaner it is effective to save energy.

Claims (5)

A casing having an accommodation space formed therein and having a suction port communicating with the accommodation space at a bottom thereof; A brush rotatably coupled to the casing inside the suction port; A centrifugal fan having a plurality of radially formed at the ends of the brush, the fan blades interlocked with the brush, and a discharge side communicating with the receiving space; And A side suction part configured to downwardly open at one side of the suction port to be distinguished from the suction port and guide the suction flow path to the vicinity of the center of the centrifugal fan; Suction head of the vacuum cleaner, characterized in that configured to include. The method of claim 1, The suction head of the vacuum cleaner, characterized in that the diaphragm is further provided between the rotating body of the brush and the fan blade to prevent air from entering the center side of the fan blade from the suction port. The method of claim 2, Bosses are formed on both sides of the casing to support both ends of the rotary shafts of the brush and the centrifugal fan, and through holes are formed to pass air guided by the side suction unit around the boss. Suction head. The method according to any one of claims 1 to 3, The suction head of the vacuum cleaner, characterized in that the opening and closing plate is further provided to be slidable to open and close the flow path of the side suction. The method of claim 4, wherein The side suction part is a suction head of the vacuum cleaner, characterized in that formed integrally with the casing.

Images