KR20230134315A - A Vacuum Cleaner Head - Google Patents

Abstract

The present invention relates to a vacuum cleaner head, which includes a rotor through which foreign substances are sucked into an opening formed on the outer periphery; A slit through which foreign substances enter is formed on the bottom, and a drum casing surrounding the outside of the rotor; and while foreign substances are sucked in through the entire area of the slit on the open bottom, at some point, they are formed between the opening of the rotor and the drum casing. It relates to a vacuum cleaner head that provides greater suction power from a motor of the same capacity by concentrating suction on an open surface where slits meet simultaneously.

Description

A Vacuum Cleaner Head}

The present invention relates to a vacuum cleaner head, which includes a rotor through which foreign substances are sucked into an opening formed on the outer periphery; A slit through which foreign substances enter is formed on the bottom, and a drum casing surrounding the outside of the rotor; and while foreign substances are sucked in through the entire area of the slit on the open bottom, at some point, they are formed between the opening of the rotor and the drum casing. It relates to a vacuum cleaner head that provides greater suction power from a motor of the same capacity by concentrating suction on an open surface where slits meet simultaneously.

In general, a vacuum cleaner is a device that sweeps or scatters foreign substances such as dust or hair existing in a cleaning space, and cleans the area to be cleaned by sucking the scattered foreign substances such as dust or hair using suction force.

A conventional vacuum cleaner used to clean floors in homes, offices, or businesses consists of a head that sucks in foreign substances, a motor that generates suction, a dust collector that collects dust and trash in one place, and a connection between the head and the dust collector. It is composed.

In the case of the head part that is replaceable and detachable from the vacuum cleaner inlet, there is a general head that can easily clean a wide area, a crevice head that can clean narrow gaps such as window frames or door gaps, and a brush head suitable for various usage environments such as the gap between the top of a cabinet and furniture. It is provided.

A regular head with a long width has the advantage of being able to easily clean a large area. Therefore, a regular head is used when cleaning large floor surfaces such as the living room, master bedroom, or concert hall. However, the suction power generated by the motor is distributed over a large area of the general head, so when suctioning dust or heavy foreign substances stuck to the floor is insufficient, there is a disadvantage in that the cleaning effect is lowered.

In the case of a crevice head that can easily clean gaps between window frames or furniture, the suction port area is smaller than that of a regular head. Because the suction power generated by the motor is concentrated in a small area, it has the advantage of having higher suction power. However, when cleaning a large space with a narrow gap head, the user must clean while moving the vacuum cleaner suction port more than with a regular head, and the weight of the vacuum cleaner during long-time cleaning has the disadvantage of causing fatigue and discomfort to the body, such as arms and waist. there is.

In addition, considering the flow of air within the vacuum cleaner, in a conventional vacuum cleaner, foreign substances reach the dust collector via the cleaner head and connection parts, and the dust collector is equipped with a filter to filter out dust contained in the air. The motor that sucks air is located at the back of the dust collector. Therefore, during cleaning, foreign substances such as dust and hair accumulate on the filter inside the dust collector and block the suction hole of the motor, reducing the suction power of the vacuum cleaner. Increasing the rotational speed of the motor to raise the reduced suction power to a certain level has the disadvantage of increasing the power consumption of the vacuum cleaner and generating loud noise.

In the case of cordless vacuum cleaners or robot vacuum cleaners that use batteries to run their motors, the battery capacity must be increased to match the increased power consumption. Cordless vacuum cleaners, which are used for easy cleaning, have the disadvantage of causing inconvenience to users due to the heavy battery weight, and the use time is shortened due to increased power consumption, requiring frequent charging.

Therefore, the development of a vacuum cleaner head that can remove dust and foreign substances adhering to a large floor surface with strong suction power while maintaining a constant suction power without putting a strain on the body during long-term cleaning and lowering power consumption is emerging.

KR 20-0243532 (Y1) 2001.08.08. KR 10-2020-0117358 (A) 2020.10.14.

In order to solve the above problem, in the present invention, a slit through which foreign substances are sucked is formed on the bottom of the drum casing, and a rotor formed with an opening and a blocking part is inserted into the drum casing, so that a part of the area of the slit is closed by the blocking part, This provides a vacuum cleaner head that prevents the suction force generated by the motor from being distributed over the entire area of the slit and concentrates the suction force on the open surface where the slit and the opening overlap, allowing the vacuum cleaner head to suck in foreign substances with strong suction force.

Another object of the present invention is that the open surface where the spiral opening and the slit overlap is changed to cover the entire area of the slit as the rotor rotates by the rotary motor, so that when cleaning a large floor surface such as a living room, a small-sized motor is used. It provides a vacuum cleaner head that can clean a large area with strong suction power while using a vacuum cleaner head.

In addition, another object of the present invention is to limit suction to the bottom surface where foreign substances are present, and to limit suction to the bottom surface at the point where the open slit of the drum casing and the opening of the rotor meet at the same time, while limiting the suction to the opening of the rotor. It provides a vacuum cleaner head that can clean a large area by changing the position of the head.

In addition, another object of the present invention is to minimize the hollow space inside the rotor by forming the body surface so that the blocking part of the rotor is filled to the inner center, so that foreign substances introduced into the rotor through the open surface are moored inside the rotor. Instead of doing so, the blocking part guides the shortest distance to the opening on the opposite side, preventing foreign substances from getting caught inside the rotor, increasing suction efficiency, and providing a vacuum cleaner head that can suppress noise.

Another object of the present invention is to provide a vacuum cleaner head that can provide a large suction force with the same rotational force and can use a small capacity motor, thereby making noise and reducing power consumption.

The present invention for achieving the above object includes a rotor 110 through which foreign substances are sucked through an opening 111 having a spiral outer periphery; The rotor 110 is inserted into the hollow body, and an open slit 121 is formed on the bottom to allow foreign substances from the surface to be cleaned to enter, and a cover surface 127 is formed surrounding the rotor 110. a drum casing 120; wherein the slit 121 has an open surface 121a formed by the opening 111 of the rotor 110 and a blocking surface formed by a blocking part 113 from which foreign substances are blocked ( 121b) is exposed so that the open surface 121a and the blocking surface 121b are disposed simultaneously, and the open surface 121a of the slit 121 is changed by the rotating rotor 110.

In addition, the rotor 110 of the present invention is formed by crossing an opening 111 through which foreign substances are sucked and a blocking part 113 through which foreign substances are blocked, so that the openings 111 are formed continuously.

In addition, the slit 121 of the drum casing 120 of the present invention sucks foreign substances only from the open surface 121a.

In addition, at the top of the drum casing 120 of the present invention, there is a discharge hole 128 through which foreign substances introduced from the open surface 121a, where the opening 111 and the slit 121 of the rotor 110 are formed simultaneously, are discharged. is formed

In addition, as the rotor 110 of the present invention rotates, the open surface 121a exposed to the slit 121 moves in the horizontal direction and is perpendicular to the moving direction of the head.

In addition, in the present invention, the drum casing 120 is inserted, and foreign substances introduced from the open surface 121a, where the opening 111 and the slit 121 of the rotor 110 are formed simultaneously, are inserted into the drum casing 120. It further includes a roller neck 130 that is guided to the intake pipe 134 via.

In addition, the blocking portion 113 from which foreign substances are blocked in the rotor 110 of the present invention is formed with a body surface 115 filled inside, and foreign substances introduced pass through the open surface 121a and the body surface It passes between (115) and penetrates the opening (111) on the opposite side of the center.

In the vacuum cleaner head according to the present invention, a slit through which foreign substances are sucked is formed on the bottom of the drum casing, and a rotor in which an opening and a blocking part are formed is inserted into the drum casing, and a part of the area of the slit is closed by the blocking part, thereby generating generation in the motor. It has the advantage of preventing the suction force from being distributed over the entire area of the slit and concentrating the suction force on the open surface where the slit and the opening overlap, allowing foreign substances to be sucked in with strong suction force.

In addition, in the present invention, as the rotor is rotated by a rotary motor, the open surface where the spiral opening and the slit overlap is varied to cover the entire area of the slit, so that when cleaning a large floor surface such as a living room, a small-sized motor can be used while cleaning. It has the advantage of being able to clean a large area with strong suction power.

In addition, the present invention restricts suction to the bottom surface where foreign substances are present, and restricts suction to the bottom surface at the point where the open slit of the drum casing and the opening of the rotor meet at the same time, while adjusting the position of the opening of the rotor. It has the advantage of being able to clean a large area by changing it.

In addition, the present invention minimizes the hollow part inside the rotor by forming the body surface so that the blocking part of the rotor is filled to the inner center, so that foreign substances flowing into the rotor through the open surface do not remain inside the rotor and are opposed to it. Since the blocking part guides the shortest distance to the opening of the surface, there are advantages in preventing foreign substances from getting caught inside the rotor, increasing suction efficiency, and suppressing noise.

In addition, the present invention can provide a large suction force with the same rotational force, and has the advantage of reducing noise and reducing power requirements by allowing the use of a small capacity motor.

1 is a perspective view of a vacuum cleaner head of the present invention;
Figure 2 is a perspective view of the rotor according to the vacuum cleaner head of the present invention;
Figure 3 is a partial cross-section of the rotor with a polygonal body surface according to the vacuum cleaner head of the present invention, (a) is a perspective view, (b) is a front view,
Figure 3 is a partial cross-section of the rotor having a triangular body surface according to the vacuum cleaner head of the present invention, (a) is a perspective view, (b) is a front view,
Figure 5 is a perspective view of a vacuum cleaner head equipped with the rotor shown in Figure 3;
Figure 6 shows a drum casing according to the vacuum cleaner head of the present invention, (a) is a perspective view of the rotary motor coupled to the gear, and (b) is a perspective view of the rotary motor coupled to the timing belt. ,
Figure 7 shows a state in which the rotor and drum casing according to the vacuum cleaner head of the present invention are combined, where (a) is a perspective view of the rotor shown in Figure 2 combined with the drum casing, and (b) is a It is a perspective view of the rotor shown in 3 combined with the drum casing,
FIG. 8 shows the rotor and drum casing of FIG. 7 viewed from the position where the slit is visible. (a) is a front view showing the state of the rotor at a certain moment, and (b) is an open surface after the rotor has partially rotated. This is a front view in a horizontally moved state,
Figure 9 is a perspective view of a roller neck according to the vacuum cleaner head of the present invention;
Figure 10(a) is a flowchart of the automatic control method of the rotor rotation speed according to the vacuum cleaner head of the present invention, and Figure 10(b) is a flowchart of the manual control method of the rotor rotation speed,
Figure 11 is a cross-sectional view showing the gap between the drum casing and the rotor in a state where the rotor according to the vacuum cleaner head of the present invention is combined with the drum casing.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art can easily implement them.

As shown in Figures 1 to 11, the vacuum cleaner head of the present invention includes a rotor 110 through which foreign substances are sucked through an opening 111 having a spiral outer periphery;

The rotor 110 is inserted into the hollow body, and an open slit 121 is formed on the bottom to allow foreign substances from the surface to be cleaned to enter, and a cover surface 127 is formed surrounding the rotor 110. Includes a drum casing (120).

The vacuum cleaner head 100 of the present invention is formed with a slit 121 that is open on the bottom to suck foreign substances from the outside into the interior of the cleaner, and is formed with a hollow tube on the top or back, so that the foreign substances sucked in from the slit 121 are collected into a dust collector. A suction pipe 131 leading to is formed.

During cleaning, the head is moved vertically back and forth by the user while contacting the floor surface to be cleaned, and the suction force generated by a motor (not shown) spaced apart from the suction pipe 131 is transmitted to the head to suck foreign substances into the interior of the head. do. Foreign matter is sucked into the head by receiving the suction force acting on the head, and reaches the dust collector through the connection part along the air flow.

The head may be provided in various shapes depending on the environment being cleaned and the purpose of use. There is a wide-shaped general head for easy cleaning of large floor surfaces, a crevice head for sucking up foreign substances accumulated in gaps between doors and furniture, and a brush head for scattering and sucking in dust accumulated in the form of a brush. In the present invention, an embodiment consisting of a general head of a wide shape for easily cleaning a large floor surface is described, but the present invention is not limited thereto and can be implemented through various modifications within the same scope of the technical idea.

The vacuum cleaner head 100 of the present invention can be replaced by being detached from the connection part that communicates the head part and the dust collector. Therefore, when dust accumulates and needs to be cleaned, the head can be separated and cleaned separately, and when it is damaged and loses its suction function, it can be exchanged for another head. The configuration of the upper part of the suction pipe 131, including the motor, can be adopted as a general vacuum cleaner, and since the configuration is already known, description will be omitted.

The vacuum cleaner head 100 of the present invention strengthens the suction power by reducing the suction area where foreign substances are sucked, and changes the suction area to enable suction of foreign substances from all areas, and at the same time, the air flow due to the suction power in the head part. The purpose is to improve cleaning efficiency by suction and suppress noise generation by simplifying the process.

In order to achieve the purpose of the present invention, as shown in FIG. 2, a rotor 110 having an opening 111 is provided and inserted into a drum casing 120 having a slit 121 on the bottom.

The suction force generated by the motor is concentrated on the open surface 121a, which is the area where the opening 111 and the slit 121 overlap, and foreign substances are suctioned with strong force, and as the rotor 110 rotates, the open surface ( 121a) is variable inside the slit 121, and the enhanced suction force acts on the entire area of the slit 121, allowing cleaning of a large area with strong suction force.

Foreign matter moves to the discharge hole 128 of the drum casing 120 through the opening 111 of the rotor 110. The rotor 110 is closed at both ends, so that foreign matter flowing into the inside of the rotor 110 through the open surface 121a of the slit 121 and the opening 111 of the rotor 110 is returned to the rotor ( It is discharged through the opening 111 of the rotor 110 and enters and exits the inside and outside of the rotor 110, and foreign matter discharged through the opening 111 of the rotor 110 is discharged to the upper side of the drum casing 120 surrounding the rotor 110. It is discharged through the discharge hole 128 and moves to a dust collector (not shown).

That is, foreign matter present on the surface to be cleaned flows into the opening 111, which is the lower surface of the rotor 110, and exits through the opening 111 located on the opposite side, which is the upper surface of the introduced opening 111, that is, It flows through the rotor 110.

Therefore, the present invention not only cleans a large area with stronger suction power by changing the position of the open surface (121a) while concentrating the suction force on the open surface (121a), but also allows the head to be cleaned by guiding and guiding the flow of foreign substances to the shortest path. It prevents jamming inside the unit, improves suction efficiency, and reduces noise.

2 to 4, in the vacuum cleaner head 100 according to the present invention, the rotor 110 adjusts the open area of the slit 121 formed in the drum casing 120 so that the suction force is adjusted to the open area ( It is a configuration that focuses on 121a), is formed in a cylindrical shape, and is arranged in the horizontal direction.

An opening 111 through which the inside and outside of the rotor 110 can communicate is formed in a certain area of the rotor 110, and a blocking portion 113 is formed in a certain area. The opening 111 through which foreign substances are sucked and the blocking part 113 through which foreign substances are blocked are formed to intersect, and the openings 111 are formed continuously.

The opening 111 of the rotor 110 may be formed in a unidirectional spiral shape with a constant lead angle along the outer periphery of the rotor 110. A blocking portion 113 is formed between the openings 111.

The opening 111 and the blocking portion 113 of the rotor 110 are presented in a spiral shape, but as the cylindrical rotor 110 rotates, the opening 111 and the blocking portion 113 are partially separated at a certain moment. Any shape that is exposed between the slits 121 and whose position can be changed by rotation is included in the scope of the present invention even if it is non-helical.

Foreign matter present on the surface to be cleaned can enter the inside of the rotor 110 through the opening 111 and be discharged to the outside, and the blocking part 113 allows entry and exit into and out of the rotor 110. impossible.

Referring to FIG. 7, the part of the rotating rotor 110 that is in contact with the bottom surface is exposed to foreign substances due to the open slit 121 of the drum casing 120. Accordingly, the opening 111 and the blocking portion 113 of the rotor 110 are also exposed to the slit 121, and foreign substances pass through the slit 121 and the opening 111 to the inside of the rotor 110. flows into.

The opening 111 and the blocking portion 113 are simultaneously exposed by the slit 121. That is, if only the opening 111 is exposed by the slit 121, the suction force is distributed throughout the slit 121, making it difficult to generate a large suction force, so the entire opening 111 is not exposed to the slit 121 at any moment. No. Additionally, to prevent strain on the motor, the blocking portion 113 is not exposed to the entire slit 121 at any one time. The opening 111 and the blocking portion 113 always coexist in the slit 121.

The opening 111 of the rotor 110 is configured to suck foreign substances into the inside and discharge them to the outside at the same time. The blocking portion 113 is configured to close a portion of the area of the slit 121, and reduces the area of the slit 121 to concentrate the suction force generated by the motor only on the open surface 121a. Foreign matter on the surface to be cleaned cannot enter or exit through the blocking portion 113, and enters or exits through the opening 111.

The opening 111 and the blocking portion 113 of the rotor 110 are exposed to the slit 121 at the same time, and the suction force does not act in the portion blocked by the blocking portion 113, but is concentrated at the opening 111. This works. Therefore, the suction force is not distributed over the entire area of the slit 121, and the suction force acting at the opening 111 is greatly strengthened even when using a motor of the same capacity.

The opening 111 exposed by the slit 121 has a smaller area than the blocking portion 113, which can reduce suction loss and is suitable for a long battery life and low noise. However, it varies depending on the cleaning object or cleaning area. It can be provided.

The rotor 110 has both ends 112 formed to be inserted into the drum casing 120. The both ends 112 are configured to allow the rotor 110 to be mounted on the drum casing 120 and rotated.

The both ends 112 protrude in the axial direction of the rotor 110, and close both ends of the rotor 110 with sealed surfaces.

The both ends 112 are inserted into the casing hole 122 of the drum casing 120, which will be described later, and receive rotational force by the rotation motor 123.

The both ends 112 according to an embodiment of the present invention are shown in FIG. 2 to protrude in the axial direction of the rotor 110, but the both ends 112 have a flat shape (not shown) that does not protrude to the outside, or It may be in a hollow shape (not shown). When both ends 112 of the rotor 110 are flat or inwardly recessed, a shaft (not shown) protrudes from the drum casing 120 for ease of coupling with the drum casing 120 to form both ends 112. It is inserted inside. Since a person skilled in the art can easily change the form in which both ends 112 protrude to the outside, are recessed inward, or are formed plainly, the both ends 112 are shown and described in a form that protrudes to the outside. The present invention may include both a form in which the both ends 112 protrude inwardly or externally and a form in which the both ends 112 do not protrude inwardly or outwardly, and a configuration in which the rotor 110 is rotated according to the change in shape of the both ends 112. Since the drum casing 120 can be easily changed by adding a shaft (not shown), description thereof will be omitted.

Foreign matter passes through the slit 121 from the surface to be cleaned by the suction force of a motor (not shown) and is sucked into the inside of the rotor 110 through the opening 111. Even if foreign substances inside the rotor 110 move to both ends of the rotor 110, they cannot escape to both ends of the rotor 110 due to the sealed both ends 112, and cannot escape from the airflow formed by the suction force. Accordingly, it exits the rotor 110 through the opening 111 on the other side.

As shown in Figures 3 and 4, the blocking portion 113 of the rotor 110 may extend into the inside of the rotor 110 and fill the center. In this shape, the opening 111 is an empty hollow surface 114 all the way to the inside, and the blocking part 113 becomes a body surface 115 filled to the inside, so that the inside of the rotor 110 is exposed through the opening 111. Foreign matter flowing into the block moves to the hollow surface 114 bordering the body surface 115 of the blocking part 113, leading to the shortest flow path and preventing it from being moored inside the rotor 110. .

At this time, the body surface 115 is not completely filled to the center of the rotor 110, but can be provided by forming a boundary surface (surface) from the edge of the hollow surface 114 to the body surface 115, with the center partially excluded. Includes up to In the present invention, the body surface 115 is filled to the inside of the rotor 110 and has this shape.

When the blocking portion 113 is filled to the inside of the rotor 110 to form the body surface 115, the cross section of the body surface 115 may be formed as a rectangular cross section as shown in FIG. 3, and as shown in FIG. 4. As shown, it may be formed with a triangular cross-section. The cross section of the blocking portion 113 is not limited to this, and foreign matter flows into the opening 111 on one side, penetrates the hollow surface 114 between the body surfaces 115, and is discharged through the opening 111 on the other side. Any configuration that forms a flow path is included in the scope of the present invention.

In the case of long foreign substances such as hair, they are not moored and caught inside the rotor 110, but are guided the shortest distance to the discharge opening 111 by the body surface 115 inside the blocking part 113 and are discharged. The body surface 115 of the blocking portion 113 provides smooth suction and discharge performance of foreign substances. In addition, the body surface 115 of the blocking unit 113 prevents foreign substances from being moored inside the rotor 110, thereby reducing noise generated when the moored foreign substances rotate.

As the rotor 110 rotates, the positions of the opening 111 and the blocking portion 113 exposed to the slit 121 change, so at some point, a portion of the slit 121 closed by the end 113 is It is opened straight through the opening 111 so that foreign substances can be sucked in.

A portion of the slit 121 opened by the opening part suctions foreign substances, but is closed by the blocking part 113 as the rotor 110 rotates.

As shown in Figures 6 and 7, the drum casing 120 according to the present invention is formed as a hollow tube on the inside, and has casing holes 122 at both ends supporting both ends 112 of the rotor 110. is formed, and a slit 121 is formed on the bottom surface to form a continuous open passage to the inner hollow of the rotor 110. A cover surface 127 consisting of a portion excluding the slit 121 is formed on the outer periphery of the drum casing 120. Additionally, both ends 112 inserted into the casing hole 122 can be rotated by a rotation motor 123, which will be described later.

The casing hole 122 is shaped to support both ends 112 of the rotor 110. The shape of the both ends 112 can be inserted into the casing hole 122 while being formed to protrude outward, and the both ends 112 are formed to have a plain shape (not shown) that does not protrude to the outside or to protrude inward (not shown). Thus, the casing hole protrudes in the shape of a shaft and can be inserted into the both ends 112. As described above, since the shape of the both ends 112 can be easily changed by a person skilled in the art, the shape of the casing hole 122 supporting the both ends 112 can also be changed into various shapes corresponding to the shape of the both ends 112. . In this embodiment, both ends 112 are shown and described as protruding outward and inserted into the casing hole 122.

A discharge hole 128 is formed on the upper surface of the drum casing 120. Foreign matter that flows inside through the slit 121 is discharged through the discharge hole 128 and moves to the dust collector.

The shape of the discharge hole 128 may be long in the axial direction of the drum casing 120, but it is not limited to this, and it is sufficient as long as foreign substances can escape to the outside of the drum casing 120.

The outer periphery, excluding the slit 121 and the discharge hole 128, is formed by a cover surface 127 surrounding the rotor 110. The cover surface 127 is configured to block the entry and exit of foreign substances from the drum casing 120 except for the slit 121 and discharge hole 128.

Since the cover surface 127 surrounds the outer periphery of the rotor 110, suction force is applied only to the slit 121, and foreign substances can be sucked inside only in the overlapped portion of the slit 121 and the opening 111. .

As shown in FIG. 7, since the rotor 110 is located inside the drum casing 120, the rotor 110 inside is exposed through the slit 121 on the bottom of the drum casing 120 on the outside. Foreign substances are sucked through the opening 111. That is, the cover surface 127 of the drum casing 120 surrounds the outside of the rotor 110, so the rotor 110 cannot communicate with the outside inside the cover surface 127 except for the slit 121, and the drum casing cannot communicate with the outside. Foreign substances may be sucked into the rotor 110 through the opening 111 through the slit 121 formed on the bottom of the rotor 120 . Foreign substances first pass through the slit 121 of the drum casing 120 and are then sucked into the interior through the opening 111 of the rotor 110.

The surface where the slit 121 of the drum casing 120 is opened by the opening 111 of the rotor 110 is called an open surface 121a, and the slit 121 blocks the rotor 110. The surface blocked by the portion 113 is called the blocking surface 121b.

At this time, the cover surface 127 of the drum casing 120 is disposed very close to the outer periphery of the rotor 110, but there is a gap between the two for rotation of the rotor 110. In this case, the distance (a) between the inner wall of the slit 121 and the rotor 110 is smaller than or equal to the distance (b) between the cover surface 127 and the rotor 110. Even if a gap exists between the cover surface 127 and the rotor 110, the opening 111 of the rotor 110 is surrounded by the cover surface 127, so foreign substances are not stored in the opening 111 blocked by the cover surface 127. ) and can be sucked into the rotor 110 through the open surface 121a of the slit 121.

If the foreign matter sucked into the opening 111 of the rotor is long and not all of it is sucked in from the open surface 121a within the slit 121, it passes through the cover surface 127 away from the slit 121 or through the cover surface 127. It moves back to the position of the slit 121 and foreign substances are sucked into the opening 111, or rise to the top of the drum casing 120 according to the rotation of the rotor 110 and into the dust collector through the discharge hole 128. move At this time, as shown in FIG. 11(a), if the gap between the rotor 110 and the cover surface 127 is very narrow, such as the gap between the inner wall of the slit 121 and the rotor 110, foreign matter on the inner wall can be removed. It sticks from the opening 111 to the blocking part 113 and may interfere with the intake of foreign substances or the rotation of the rotor 110. In this case, as shown in Figure 11 (b), the gap (b) between the rotor 110 and the cover surface 127 is made larger than the gap (a) between the inner wall surface of the slit 121 and the rotor. It is desirable.

The cover surface 127 surrounds the opening 111 and the blocking portion 113 constituting the outer periphery of the rotor 110, and the opening 111 blocked in the cover surface 127 allows rotation outside the cover surface 127. No suction force is generated inside the electron 110. Therefore, since the slit 121 can act concentrated on the open surface 121a opened by the opening 111, the suction force can be strengthened.

The suction force generated by the motor inside the cleaner body is transmitted to the head and acts on the slit 121. Since the drum casing 120 is blocked by the cover surface 127, the suction force can be concentrated on the open surface 121a of the slit 121, and foreign substances can be strongly sucked in without leakage of suction force. Therefore, by concentrating the strong suction power in a small area, the suction power is strengthened, and foreign substances that are difficult to separate from the floor can also be sucked in with strong suction power.

As shown in FIGS. 7 and 8, the rotor 110 is inserted into the drum casing 120, and the slit 121 formed on the bottom of the drum casing 120 is a blocking portion of the rotor 110. A blocking surface (121b) partially blocked by (113) and an open surface (121a) in which the opening 111 of the rotor 110 and the slit 121 of the drum casing 120 overlap and open are formed. . Foreign substances are sucked in from the open surface 121a of the slit 121, and cannot be sucked in from the blocking surface 121b, where the slit 121 is blocked by the blocking part 113 of the rotor 110.

As the rotor 110 rotates inside the drum casing 120, the position of the open surface 121a, which is the surface where the slit 121 and the opening 111 overlap and are opened, changes. When the rotor 110 stops without rotating, the open surface 121a of the slit 121 is open so that the inside and the outside communicate, and the blocking surface 121b is connected to the blocking portion 113 of the rotor 110. However, as the rotor 110 rotates, the positions of the open surface 121a and the blocking surface 121b of the slit 121 move horizontally and change, so foreign substances can be sucked from the entire slit 121.

Since the blocking portion 113 formed on the outer periphery of the rotor 110 closes a portion of the slit 121, the suction force generated by the motor and transmitted to the head is caused by the slit 121 being opened by the opening 111. It acts on the open surface (121a). Therefore, the suction force is not distributed over the entire area of the opening 111 or the entire area of the slit 121, but is concentrated on the open surface 121a, so the suction pressure is very large.

As the rotor 110 rotates, the open surface 121a of the slit 121 moves in the horizontal direction. The blocking surface (121b) is blocked by the blocking part 113 and the open surface (121a) is opened by the opening 111. As the rotor 110 rotates, the positions of the open surface (121a) and the blocking surface (121b) is variable and moves, and its direction is horizontal. Since the open surface 121a of the slit 121 moves in the horizontal direction, the entire area of the slit 121 can be opened.

The open surface 121a of the slit 121 is opened only in some positions at any one time, but the rotor 110 rotates quickly to open the slit 121 as a whole.

By concentrating the suction force on the open surface (121a) rather than applying it to the entire area of the slit 121, heavy foreign substances that are difficult to be sucked in with conventional suction force or foreign substances that are in close contact with the floor can be removed with a motor of the same capacity. Sufficient force is generated to inhale. Even if a foreign substance is located on the blocking surface 121b, where the slit is blocked by the blocking part 113, the position of the open surface 121a is rapidly changed in the horizontal direction, so that the position of the blocking surface 121b is within the open surface 121a. It can be positioned and inhaled.

The vacuum cleaner head of the present invention has a limited suction area compared to the total area of the slit 121, but by rotating the rotor 110 to quickly horizontally change the position of the open surface 121a, enhanced suction power is provided. This is to enable it to act on the entire area of the slit 121.

The vacuum cleaner head 100 moves vertically back and forth on the floor surface to be cleaned, and the open surface 121a of the slit 121 moves horizontally left and right in the width direction (axial direction) of the slit 121. Therefore, as shown in FIGS. 1 and 5, the moving direction of the vacuum cleaner head 100 and the moving direction of the open surface 121a of the slit 121 are perpendicular to each other. Even if the vacuum cleaner head 100 is twisted left and right while cleaning, the direction of movement of the open surface 121a also changes correspondingly, so that it can always be perpendicular to the vacuum cleaner head 100.

During cleaning, when the rotor 110 rotates at a sufficiently fast speed compared to the moving speed of the head, the time for the entire area of the slit 121 to be opened and then closed is shortened, making it equivalent to the entire slit 121 being open. It can be cleaned easily. Therefore, cleaning efficiency is improved by preventing foreign substances distributed on the floor from being sucked in due to the closure of the slit 121, and rotating the rotor 110 to open the blocking surface 121b and suck in the foreign substances.

When a certain amount of power is supplied to generate suction force from the motor, the vacuum cleaner head according to the present invention amplifies the suction force to more effectively suck in foreign substances. Therefore, while suction efficiency improves, the power supplied to the motor can be reduced, which can also reduce the weight of the battery that supplies power or extend the operating time of the vacuum cleaner. In addition, in the case of a cordless vacuum cleaner, users feel fatigue and discomfort when cleaning for a long time due to the weight of the heavy battery, but the vacuum cleaner head of the present invention can reduce the battery weight, allowing users to clean more conveniently.

The motor of a conventional vacuum cleaner is located on the top or back of the dust collector. As cleaning progresses, if foreign matter accumulates in the dust collector above a certain level, foreign matter accumulates in the filter that filters dust from the intake air, blocking the motor's intake hole. Therefore, the suction power of the vacuum cleaner becomes weaker and cleaning efficiency decreases.

Robot vacuum cleaners that use batteries need to move through narrow gaps to clean, so it is difficult to increase their size beyond a certain level. The batteries installed in robot vacuum cleaners are also limited, so suction power and usage time are limited. The vacuum cleaner head of the present invention can also be applied to a robot cleaner. A robot vacuum cleaner equipped with the head of the present invention can generate greater suction power even with limited battery capacity and can increase operating time. It can overcome the shortcomings of robot vacuum cleaners, such as low suction power and short usage time, and improve cleaning efficiency.

As shown in Figures 6 and 7, a rotation motor 123 for driving the rotor 110 is mounted on the drum casing 120. The rotation motor 123 may be mounted on the outside of the drum casing 120, or may be mounted on the inside of the drum casing. Both ends 112 of the rotor 110 are inserted into the casing hole 122 of the drum casing 120 and protrude outward. The rotational force of the rotation motor 123 can be transmitted to a power transmission means such as a timing belt 124 or a gear 126, and the rotation shaft and rotor of the rotation motor 123 are connected by the timing belt 124 or the gear 126. Both ends 112 of 110 are coupled. Therefore, the rotor 110 can be driven by transmitting the rotational force of the rotation motor 123 to both ends 112. When both ends 112 protrude inward or have a flat shape, a shaft (not shown) is further provided in the drum casing 120, inserted into both ends, and then the shaft is rotated to rotate the rotor. Since this is a simple change depending on the shape of both ends 112, detailed description will be omitted.

A protector 125 can be installed to prevent foreign substances from being caught between the timing belt 124 or the gear 126, which are power transmission means, or being damaged. The guard 125 is formed to surround the outer surface of the timing belt 124 or the gear 126 and is coupled to the end of the drum casing 120. Additionally, the blocking film 140 can prevent foreign substances from becoming trapped inside the timing belt 124 or the gear 126.

The rotor 110 according to the present invention is rotated by receiving driving force from the rotation motor 123. The effect of the present invention can be achieved when the rotation speed of the rotor 110 rotated by the rotation motor 123 operates much faster than the moving speed of the cleaner head moved by the user.

Referring to FIG. 10, the rotation speed control of the rotor 110 is an automatic control method that detects the moving speed of the vacuum cleaner head and automatically determines the rotation speed of the rotor 110 to achieve optimal suction power, or the user directly controls the rotation speed. It can be any one of the manual control methods that determines .

The automatic control method detects the moving speed of the vacuum cleaner head, that is, the speed (which may include the direction) at which the user moves the vacuum cleaner head. In this case, already developed sensors such as infrared, laser, or acceleration sensors are used. A sensor (not shown) is attached to one side of the cleaner head, and a control unit (not shown) that receives speed information of the cleaner head from the sensor appropriately adjusts the rotation speed of the rotary motor 123 to provide sufficient suction power. At this time, the actual speed of the rotor 110 can be detected and the rotation speed of the rotation motor 123 can be reflected in the control.

The manual control method has a switch that adjusts the rotation speed of the rotation motor 123 with voltage, current, or pulse, and when the switch is selected by the user, the rotation motor 123 is driven at the selected rotation speed. Switches include all methods in which the user directly determines the speed, such as a button type that directly presses the step, a touch type that changes the speed depending on the number of times it is pressed, and a slide type that moves the position.

As shown in FIGS. 1, 5, and 9, the roller neck 130 according to the present invention forms the outer shape of the vacuum cleaner head 100 together with the drum casing 120, and has drum casings (at both ends) A circular fixing part 132 is formed to support the 120, and the exposed part 133 between the two end fixing parts 132 is empty so that the drum casing 120 can be exposed to the outside. The exposed portion 133 exposes the drum casing 120 inserted inside, and the slit 121, which is the bottom of the drum casing 120, is exposed to the outside. A hollow cylindrical suction pipe 131 is formed at the top to guide foreign substances to the dust collector.

The suction pipe 131 is in communication with the discharge hole 128 of the drum casing 120, so foreign substances exiting the rotor 110 are discharged through the discharge hole 128, and the suction pipe 131 It moves to the dust collector (not shown).

In addition, side walls 150 are provided to seal both sides of the roller neck 130.

The width of the roller neck 130 has a length extending a certain distance from both ends of the drum casing 120. The roller neck 130 forms spaces at both ends along the extended length. A portion of the formed space is formed as a fixing part 132 for supporting the drum casing 120.

The roller neck 130 supports the drum casing 120 and forms the outer shape. However, the roller neck 130 is a configuration that can be selectively adopted, and the structure and shape are sufficiently modified so that the drum casing 120 forms an external shape and the discharge hole 128 can be formed into a pipe to guide it to the dust collector. If 131 is replaced, the drum casing 120 can perform the function of the roller neck 130.

In the present invention, the air flow caused by the suction force of the motor flows into the rotor 110 through the open surface 121a of the slit 121, and flows into the rotor 110 through the opening 111 on the opposite side of the slit 121. It exits (110) and is guided to the suction pipe (131), where it flows to the dust collector. Therefore, the flow path can be formed with the shortest distance, improving suction efficiency and reducing noise.

The operation of the vacuum cleaner head 100 according to the present invention will be described.

When power is supplied to the motor to operate, the motor generates suction pressure and sucks in foreign substances.

The air flow path due to the suction pressure flows into the inside of the rotor 110 through the open surface 121a of the slit 121 on the surface to be cleaned, and passes through the hollow surface 114 inside the rotor 110. It exits the rotor 110 through the opening 111 on the opposite side of the slit 121, moves to the suction pipe 131 through the discharge hole 128 on the upper side of the drum casing 120, and moves to the dust collector. do.

Foreign substances present on the surface to be cleaned pass through the slit 121, but cannot be sucked into the blocking surface 121b blocked by the blocking part 113, and cannot be sucked into the open surface, which is the area where the opening 111 and the slit 121 overlap. It flows into the rotor 110 through (121a).

Foreign matter that flows into the rotor 110 is not stopped inside the rotor 110 by the body surface 115 that fills the inside of the rotor 110, but exits the rotor 110 through the shortest path.

Foreign matter comes out from the area where the discharge hole 128 and the opening 111 overlap. Since it is guided through the shortest path from the inflow into the rotor 110 to the discharge, the foreign matter escapes quickly without getting caught in any structure. Since foreign substances do not block the suction path, suction efficiency is improved and noise is reduced.

Foreign matter that exits the rotor 110 and the drum casing 120 through the discharge hole 128 and the opening 111 is guided to the suction pipe 131 along the suction path and moved to the dust collector.

When the drum casing 120 forms the shape of the head portion without adopting the configuration of the roller neck 130, an intake pipe (not shown) communicating with the discharge hole 128 is formed in the drum casing 120 to collect foreign substances. You can be guided by:

The vacuum cleaner head 100 according to the present invention has the advantage of preventing suction force from being distributed to the suction port of a general head used when cleaning a large floor surface and maintaining strong suction force.

In addition, the present invention has the advantage of being able to clean a large area with strong suction power because it can suction a large area while using a small-sized motor when cleaning a large floor surface such as a living room.

In addition, the present invention provides suction limited to the bottom surface where foreign substances are present, and even on the bottom surface, concentrated suction can be performed only at the point where the open slit 121 of the drum casing 120 and the opening 111 of the rotor 110 meet at the same time. There is an advantage that a large area can be cleaned by changing the position of the opening 111 of the rotor 110 while limiting the cleaning.

Additionally, the present invention has the advantage of allowing users to use it lightly by reducing the battery capacity of a cordless vacuum cleaner that provides the same rotational force (suction force).

In addition, the present invention has the advantage of being able to provide a large suction force with the same rotational force and having relatively low noise by using a small capacity motor.

100: Vacuum cleaner head
110: rotor
111: Opening 112: Both ends 113: Blocking portion 114: Hollow side 115: Body side
120: Drum casing
121: Slit 121a: Open side 121b: Blocked side
122: Casing hole 123: Rotating motor
124: Timing belt 125: Protector 126: Gear 127: Cover surface 128: Discharge hole
130: Roller neck
131: Suction pipe 132: Fixed part 133: Exposed part
140:Barrier
150: side wall

Claims (7)

A rotor 110 through which foreign substances are sucked through an opening 111 having a spiral outer periphery;
The rotor 110 is inserted into the hollow body, and an open slit 121 is formed on the bottom to allow foreign substances from the surface to be cleaned to enter, and a cover surface 127 is formed surrounding the rotor 110. Includes a drum casing (120),
The slit 121 exposes the open surface 121a by the opening 111 of the rotor 110 and the blocking surface 121b by the blocking part 113 through which foreign substances are blocked, forming an open surface 121a and The blocking surface 121b is disposed at the same time,
A vacuum cleaner head in which the open surface (121a) of the slit (121) is changed by the rotating rotor (110).
According to paragraph 1,
The rotor 110 is a vacuum cleaner head in which an opening 111 through which foreign substances are sucked and a blocking part 113 through which foreign substances are blocked intersect to form the openings 111 continuously.
According to paragraph 1,
The slit 121 of the drum casing 120 is a vacuum cleaner head that sucks foreign substances only from the open surface 121a.
According to paragraph 1,
At the top of the drum casing 120,
A vacuum cleaner head in which an discharge hole 128 is formed through which foreign substances introduced from the open surface 121a of the rotor 110 where the opening 111 and the slit 121 are simultaneously formed.
According to paragraph 1,
As the rotor 110 rotates, the open surface 121a exposed to the slit 121 moves in the horizontal direction and forms a vacuum cleaner head perpendicular to the moving direction of the head.
According to paragraph 1,
The drum casing 120 is inserted, and foreign matter flowing in from the open surface 121a where the opening 111 and the slit 121 of the rotor 110 are formed simultaneously passes through the drum casing 120 and enters the intake pipe. A vacuum cleaner head further comprising a roller neck (130) guided to (134).
According to paragraph 1,
In the rotor 110
The blocking portion 113, which blocks foreign substances, is formed with a body surface 115 filled with the inside,
A vacuum cleaner head in which introduced foreign matter passes through the open surface (121a), passes between the body surfaces (115), and penetrates the opening (111) on the opposite side of the center.