KR20060118047A - Dust and dirt collecting unit for vacuum cleaner - Google Patents

Abstract

A dust collecting unit of a vacuum cleaner is provided to remove foreign matters efficiently, to improve convenience, and to decrease power consumption by controlling rotational force of a motor according to the size of foreign matters collected in a floor. A dust collecting unit(300) includes a filter assembly(310) having plural vent holes in an outer periphery and filtering foreign matters from air, a dust collecting cover(320) formed in an upper part of the filter assembly and selectively attached or detached from the filter assembly, and a dust collecting bin(330) cylindrically formed and opened up to collect foreign matters through a suction guide(334). A foreign matter sensing unit(400) is formed at a side of the suction guide to regulate rotational force of a motor by detecting the size and amount of foreign matters flowing into the suction guide. The foreign matter sensing unit comprises a reflecting plate(410) installed in an inner periphery of the suction guide to selectively reflect light, and a motor control unit(420) for regulating rotational force of the motor by projecting light to the reflecting plate and outputting an electric signal according to reflection of light.

Description

Dust collection unit for vacuum cleaner {Dust and dirt collecting unit for Vacuum cleaner}

1 is a perspective view showing a state in which the dust collecting unit is separated from the general upright vacuum cleaner.

Figure 2 is an exploded perspective view showing the configuration of a dust collecting unit for a general vacuum cleaner.

Figure 3 is a perspective view showing a state in which the dust collecting unit is separated from the upright vacuum cleaner employing a preferred embodiment of the present invention.

Figure 4 is an exploded perspective view showing the configuration of an embodiment of a dust collecting unit for a vacuum cleaner according to the present invention.

Figure 5 is a schematic diagram showing the configuration of the foreign matter detection means in the dust collecting unit for a vacuum cleaner according to the present invention.

Figure 6 is a schematic diagram showing a state when the foreign matter detection means in the dust collecting unit for a vacuum cleaner according to the present invention detects the foreign matter.

Explanation of symbols on the main parts of the drawings

100. Suction nozzle body 200. Body

210. Control panel 250. Suction hose

270. Dust collection part 272. Terminal accommodating part

300. Dust collection unit 310. Filter assembly

320. Dust cover 322. Detachable groove

324. Cover handle 330. Dust collector

332. Handles 334. Suction guides

336. Power Terminal 338. Electric Wire

400. Foreign material detection means 410. Reflector

420. Motor control unit 422. Light transmitting element

424. Light receiving element

The present invention relates to a vacuum cleaner, and more particularly, to a dust collecting unit for a vacuum cleaner is provided with a foreign material detecting means for regulating the rotational force of the motor in accordance with the size and amount of the foreign material flowing into the dust collection unit.

1 is a perspective view showing a state in which the dust collecting unit is separated from the general upright vacuum cleaner.

As shown in the figure, the upright vacuum cleaner sucks air containing foreign matter through the suction nozzle body 60 which sucks air containing foreign substances while moving along the bottom surface, and the suction nozzle body 60. In order to have a motor (not shown) built-in main body 70, and an operation unit 72 is installed on the upper portion of the main body 70 for holding by the user when using the cleaner.

The suction nozzle body 60 serves to suck the foreign matter of the cleaning area together with the air through a suction hole (not shown) formed on the bottom surface of the suction nozzle body 60, and the main body 70 is provided on both sides of the suction nozzle body 60. It is common that the wheel 62 is provided to move easily.

The main body 70 is configured to be rotatable within a predetermined angle range with respect to the suction nozzle body (60). That is, the main body 70 is rotatably coupled to the suction nozzle body 60 within a range of a predetermined inclination angle, so as to control the rotation of the main body 70 of the suction nozzle body 60. The pivoting lever 64 is provided at the rear end of the upper surface.

The main body 70 is capable of suctioning external air and foreign matter through the suction nozzle body 60 by a suction force of a motor (not shown) mounted therein, and a suction nozzle body at a central portion of the main body 70. There is provided a suction hose 74 for guiding the foreign material sucked through the 60 to flow to the dust collecting unit 10 to be described below.

In addition, a detachable knob 76 used to pull out the dust collecting unit 10 to the outside of the main body 70 is installed on a front surface of the main body 70, and a lower side of the detachable knob 76 of the main body 70. The dust collecting installation part 78 recessed to the rear part is formed.

On the right side of the dust collector mounting portion 78 is provided with a discharge portion 79 for guiding the air filtered by the foreign body to be discharged to the outside of the main body 70. The discharge unit 79 may be provided with a separate purification filter (not shown) so that the air discharged to the outside (indoor space) is discharged in a more comfortable state.

On the other hand, the dust collecting unit 78 is equipped with a dust collecting unit 10 for filtering and collecting the foreign matter contained in the air introduced into the main body 70. As described above, the dust collecting unit 10 may be selectively pulled out and inserted into the dust collecting mounting unit 78 by manipulating the detachable knob 76.

Hereinafter, the configuration of the dust collecting unit will be described with reference to the drawings. Figure 2 is a perspective view showing the configuration of a dust collecting unit for a general vacuum cleaner.

As shown in the figure, the external appearance of the dust collecting unit 10 is formed in a cylindrical shape is provided with a dust collector 12, the foreign matter is collected and selectively detachable on the upper surface of the dust collector 12 It is composed of a dust collecting cover 14 to shield the interior of the analgesic 12, the filter 16 for filtering the foreign matter in the interior of the dust collector 12, and partitions the inner space of the dust collector 12 up and down The separator plate 18 is mounted.

The outer circumferential surface of the dust collecting tube 12 is provided with a suction guide 12 ′ formed in a tubular shape in which the inside is pierced in a tangential direction. The suction guide 12 ′ guides the air introduced into the dust collecting container 12 to circulate in a tangential direction along the inner wall of the dust collecting container 12. Therefore, air including foreign matter introduced through the suction guide 12 ′ forms a cyclone inside the dust collecting container 12.

On the other outer circumferential surface of the suction guide 12 'is formed a handle 13 recessed upwardly. The handle 13 is for allowing the user to easily grasp the dust collecting unit 10 from the dust collecting and mounting portion 78 at the time of withdrawal.

The filter 16 is located above the center of the dust collecting chamber 12 and is composed of an inner filter 16a and an outer filter 16b. The external filter 16b accommodates the internal filter 16a therein, and filters foreign substances having a relatively large volume in a state in which the dust collecting cover 14 is selectively detachably mounted on the bottom surface of the dust collecting cover 14.

The inner filter 16a is formed into a cylindrical shape having a perforated interior, and serves to filter fine foreign substances from the foreign substances introduced into the dust collecting chamber 12. In addition, upper and lower portions of the inner filter 16a are provided with a sealing part 17 formed of an elastic member and compressed with a counterpart to seal the upper and lower parts of the inner filter 16a to prevent air leakage.

The separating plate 18 is installed below the filter 16. The separating plate 18 guides the foreign material filtered by the filter 16 to fall below the dust collecting container 12, and at the same time, the foreign matter dropped to the lower side of the dust collecting container 12 is eddy caused by air flow. Due to this it is regulated not to be backed up above the separator 18.

Accordingly, a dropping portion 18a is formed on an outer circumferential surface of the separating plate 18 so that upper and lower portions communicate with each other based on the separating plate 18 so that foreign matters may be dropped to the dust collecting container 12 and be collected. This is common.

However, the dust collecting unit for a general vacuum cleaner having the above configuration has the following problems.

That is, the foreign material introduced into the dust collecting container 12 through the suction guide 12 'has various sizes according to the state of the cleaning area, but the suction power of the motor (not shown) is kept constant so that the foreign material suction efficiency is lowered. There is a problem.

In addition, due to the deterioration of the foreign matter suction efficiency, the user can operate the rotational force of the motor (not shown) as the strongest when performing the cleaning to increase the electricity consumption, which is undesirable from an economical point of view.

In addition, these problems cause the user to degrade product satisfaction.

An object of the present invention for solving the problems in the prior art as described above, by detecting the size and amount of foreign matter flowing into the dust collection unit and generating a predetermined electrical signal to regulate the rotational force of the motor foreign matter suction efficiency It relates to a dust collecting unit for a vacuum cleaner provided with a foreign material detecting means to be improved.

According to a feature of the present invention for achieving the above object, a plurality of ventilation holes are formed on the outer peripheral surface to filter foreign matter by interfering foreign matter contained in the air; A dust cover provided on an upper portion of the filter assembly to selectively detach / attach the filter assembly; The upper portion is formed in an open cylindrical shape, and has a configuration including a dust collector for collecting the foreign matter introduced through the suction guide formed perforated to communicate from the outer peripheral surface to the inside, the suction guide on one side of the foreign material flowing into the suction guide It is characterized in that the foreign matter detection means for controlling the rotational force of the motor by sensing the size and amount.

The foreign material detecting means includes a reflecting plate mounted on the inner circumferential surface of the suction guide to selectively reflect external light; It is installed on the opposite side of the reflecting plate, characterized in that it comprises a motor control unit for transmitting the light to the reflecting plate and generates an electrical signal in accordance with the amount of light reflected to regulate the rotational force of the motor.

The motor control unit may include a light transmitting element that transmits light to the reflecting plate, and a light receiving element that senses light reflected by the reflecting plate.

The motor control unit is characterized in that the infrared sensor for selectively generating an electrical signal in accordance with the detection of light.

The motor control unit is characterized in that it is provided with a plurality.

One side of the dust collecting container is characterized in that the power supply terminal for supplying power to the motor control unit from the outside is provided.

According to this configuration, since the suction power of the motor is automatically adjusted according to the size of the foreign matter in the cleaning area, there is an advantage that the foreign matter removal ability of the vacuum cleaner is improved.

Hereinafter, a configuration of a vacuum cleaner will be described with reference to the drawings. Figure 3 is a perspective view showing a state in which the dust collection unit is separated from the upright vacuum cleaner employing a preferred embodiment of the present invention. However, only the terminal accommodating part 272 will be briefly referred to in the external construction of the vacuum cleaner since the structure is the same except for the terminal accommodating part (reference numeral 272).

The terminal accommodating part 272 is formed to be recessed rearward from the inner surface of the dust collector mounting part 270 recessed and molded in the center of the main body 200 to supply power to the foreign material detecting means 400 which will be described in detail below.

On the other hand, the dust collecting unit 270 is provided with a dust collecting unit 300, which is a main component of the present invention. The dust collecting unit 300 has an outer diameter corresponding to the dust collecting part 270 to be selectively withdrawn / inserted into the dust collecting part 270, and filters the foreign material introduced into the main body 200 to filter the foreign material. To collect dust.

That is, the dust collecting unit 300 generally filters the foreign matter by the cyclone method, collects the foreign matter through the separate filter, or simultaneously collects the foreign matter therein by performing the cyclone method and the filter method. It is configured to be.

Hereinafter, the configuration of the dust collecting unit will be described in detail with reference to the accompanying drawings. 4 is an exploded perspective view showing the configuration of an embodiment of a dust collecting unit for a vacuum cleaner according to the present invention.

As shown in the figure, the dust collection unit 300 is formed in a cylindrical shape is formed with a plurality of vent holes (not shown) on the outer circumferential surface of the filter assembly 310 and the filter assembly 310 of the filter assembly 310 A dust collecting cover 320 provided at an upper portion and having a filter assembly 310 coupled thereto, and a dust collecting cover 330 formed in a cylindrical shape having an upper portion, and the foreign matter filtered by the filter assembly 310 is collected at a lower side thereof. It is configured to include.

As described above, the filter assembly 310 is detachably mounted on the bottom surface of the dust collecting cover 320 and includes an inner filter 310a and an outer filter 310b.

The inner filter 310a is formed in a cylindrical shape having a substantially inner perforation, and serves to filter fine foreign matter from the foreign matter introduced into the dust collecting container 330. Therefore, the internal filter 310a is preferably formed of a material capable of securing a certain strength or more in consideration of the strong flow of air and maintaining a shape during washing. For example, it may be formed of a polyester that can be utilized as a fiber material.

A lower portion of the inner filter 310a is formed with an elastic member, and a sealing part 312 is provided to compress the inner bottom surface of the outer filter 310b to prevent air leakage. The stop protrusion 314 is generally formed at the upper part of the filter assembly 310 to limit the rotation range of the filter assembly 310 when the filter assembly 310 is mounted on the dust collecting cover 320.

The outer filter 310b is formed into a cylindrical shape having an inner diameter slightly larger than the outer diameter of the inner filter 310a. A mounting groove 316 recessed and molded to be seated on the upper portion of the outer filter 310b and protruded in the outer circumferential direction is formed so that the outer filter 310b is coupled to the bottom surface of the dust collecting cover 320. Fastening ribs 318 are provided.

The dust collecting cover 320 is configured to shield the upper part of the dust collecting container 330 so that foreign matter collected in the dust collecting container 330 is not scattered to the outside of the dust collecting unit 300, and the dust collecting cover 320 At the center of the bottom portion is provided with a detachable groove 322 to be recessed and molded to a predetermined depth so that the separation of the dust collecting unit 300 from the dust collecting mounting portion 270 is restricted.

In addition, the cover handle 324 recessed downward with a predetermined width is molded on the outer side of the upper surface of the dust collecting cover 320. The cover handle 324 is configured to separate the dust collecting cover 320 from the dust collecting container 330 when the user emptyes the foreign matter inside the dust collecting container 330 to have a sufficient depth for ease of gripping. It is desirable.

On the other hand, the dust collector 330 is to form a predetermined space as described above to collect the foreign matter therein, the outer peripheral surface of the dust collector 330 is formed with a handle 332 protruding outward. The handle 332 is for allowing the user to easily grip the dust collecting unit 300 from the main body 200 when the dust collecting unit 300 is detached.

The other outer circumferential surface of the handle 332 is provided with a suction guide 334 for guiding the inflow of foreign matter into the dust collector (330).

One end of the suction guide 334 protrudes to the outside of the dust collecting container 330 by a predetermined length, and air flowing into the dust collecting container 330 may flow along the inner wall of the dust collecting container 330 in a tangential direction. Guide to help. Therefore, the suction guide 334 is preferably formed to be inclined in a tangential direction with respect to the outer surface of the dust collecting container 330.

And, one side of the suction guide 334 is provided with a foreign material detecting means 400 that is a main component of the present invention. The foreign matter detection means 400 serves to regulate the rotational force of the motor (not shown) by sensing the size and amount of the foreign material flowing into the suction guide 334 when the power is applied.

That is, the foreign circumferential surface of the dust collecting container 330 is provided to protrude outward and is inserted into the terminal accommodating part (reference numeral 272 of FIG. 3) so that the foreign material detecting means 400 can receive power supply from the main body 200. A power terminal 336 is provided, and the power terminal 336 is connected to the foreign material detecting means 400 by an electric wire 338.

The foreign material detecting means 400 is fixedly mounted on the inner circumferential surface of the suction guide 334 and is selectively installed on the opposite surface of the reflective plate 410 to selectively reflect external light. And a motor control unit 420 for transmitting and receiving light and generating an electrical signal according to the amount of reflected light to regulate the rotational force of the motor (not shown).

The reflection plate 410 is formed of a mirror having a high reflectance of light, and the like, and the motor control unit 420 for projecting light to the reflection plate 410 and transmitting an electrical signal to the motor (not shown) depending on whether the light is reflected. The light projected from the motor controller 420 may be reflected by being provided at a position facing the motor.

The motor control unit 420 is an infrared sensor that selectively generates an electrical signal depending on the presence or absence of light reflection, the infrared sensor is able to detect any object, the detection distance is long, and due to the advantage that can obtain a fast response speed everyday It is applied to automatic doors that are commonly encountered in life.

Hereinafter, the configuration of the motor control unit will be described with reference to the drawings. Figure 5 is a schematic diagram showing the configuration of the foreign matter detection means in the dust collecting unit for vacuum cleaner according to the present invention, Figure 6 shows the state when the foreign matter detecting means in the dust collecting unit for vacuum cleaner according to the present invention. The schematic shown is shown.

As shown in the figure, the motor control unit 420 detects light reflected by the light-transmitting element 422 and the light reflected by the reflecting plate 410. It includes a light receiving element 424, one side of the motor control unit 420 is connected to the power terminal 336 by a wire 338.

That is, when the infrared light transmitted from the light transmitting element 422 to the reflecting plate 410 is reflected by the reflecting plate 410 at a predetermined angle, the light receiving element 424 detects the infrared light, and the progress of the infrared light is caused by the foreign material. When the interference is not detected by the infrared ray, the motor (not shown) regulates a large amount and a small amount of an electric signal, for example, a power applied amount.

Therefore, a separate signal transmission line (not shown) is further provided between the motor (not shown) and the light receiving element 424 so as to transmit an electrical signal generated by the light receiving element 424 to the motor (not shown). It should be obvious.

In addition, the light transmitting element 422 and the light receiving element 424 in more detail, depending on the size and amount of foreign matter flowing into the suction guide 334 in more detail, the rotational speed of the motor (not shown) It is provided with a plurality so as to be regulated.

Therefore, when a large volume of foreign material flows inside the suction guide 334 as shown in FIG. 6, the infrared light emitted from the light transmitting element 422 is interfered by the foreign material, and only one light receiving element 424 detects the infrared light. An electrical signal is generated, and when such a state occurs sporadically, the motor is set to rotate at a high speed.

Hereinafter, the operation of the vacuum cleaner configured as described above will be described with reference to FIGS. 3 to 6.

First, as illustrated in FIG. 3, the dust collecting unit 300 is gripped by the handle 332 in a state in which the dust collecting unit 300 is separated from the dust collecting unit 270 to mount the dust collecting unit 300 inside the dust collecting unit 270. When the dust collecting unit 300 is mounted on the dust collecting unit 270, the power supply terminal 336 is inserted into the terminal accommodating unit 272 provided on the inner surface of the dust collecting unit 270 so that the foreign material detecting unit 400 is ready for operation. It becomes a state.

At this time, when power is applied to the main body 200 by operating an operation unit (reference numeral 210 of FIG. 3), a motor (not shown) built in the main body 200 rotates at a set rotation speed to generate suction power. The foreign substance on the bottom surface is sucked together with the air by the suction nozzle body (100 in FIG. 3).

At the same time, the light transmitting element 422 of the motor control unit 420 transmits infrared rays to the reflecting plate 410, and the light receiving element 424 receives all the infrared rays transmitted by the light transmitting element 422 to the motor. (Not shown) maintains the set rotation speed.

The air including the foreign matter sucked from the suction nozzle body 100 flows along the suction hose (250 of FIG. 3) and then passes through the suction guide 334 of the dust collecting unit 300 and the dust collecting container 330. Flows inside.

When the air including the foreign material passes through the suction guide 334, the light transmitting element 422 and the light receiving element 424 transmits / receives infrared rays to sense the amount and size of the foreign matter. If the size and amount of the foreign material is small as shown in FIG. 5, the light receiving element 424 receives all the infrared rays transmitted from the light transmitting element 422 so that the motor (not shown) maintains the set number of rotations. It sends an electrical signal.

On the contrary, when the size of the foreign material is large, as shown in FIG. 6, when the light receiving element 424 does not partially receive the infrared light emitted from the light transmitting element 422, the light receiving element 424 is forced to rotate at a high speed. By sending an electrical signal to the motor (not shown), the suction force of the motor (not shown) is increased to efficiently suck a large foreign material on the bottom surface.

Due to the interaction of the foreign matter detection means 400 and the motor (not shown), foreign matters of various sizes in the cleaning area are effectively removed.

On the other hand, the air containing the foreign matter introduced into the dust collecting container 330 through the suction guide 334 is rotated along the inner wall of the dust collecting container 330 and the foreign material having a relatively large mass is the dust collecting container 330 The foreign matter accumulated in the lower side of the) and the foreign matter having a relatively low mass rotates along the outer circumferential surface of the filter assembly 310 and is filtered by the filter assembly 310.

The air filtered by the filter assembly 310 is repeatedly discharged to the outside of the main body 200 through the discharge part (reference numeral 290 of FIG. 3) provided on the left side of the main body 200. The cleaning with the air is performed.

The scope of the present invention is not limited to the above-exemplified embodiments, and many other modifications based on the present invention will be possible to those skilled in the art within the above technical scope.

The dust collecting unit for a vacuum cleaner according to the present invention as described above includes a foreign material detecting means for sensing the size and amount of the foreign material flowing into the suction guide by an infrared sensor and sending an electrical signal to the motor, thereby rotating the motor according to the size of the foreign material. It is configured to be regulated.

Therefore, since the rotational force of the motor is selectively adjusted according to the size of the foreign matter accumulated in the cleaning area, there is an advantage of improving the foreign matter removing ability.

In addition, the use of the vacuum cleaner is increased due to the improvement of the foreign material removal ability, as well as the electricity consumption is reduced, which is preferable from an economical point of view.

In addition, due to these advantages, the user is also expected to improve product satisfaction.

Claims (6)

A filter assembly 310 formed with a plurality of ventilation holes on an outer circumferential surface to filter foreign substances by interfering with foreign substances contained in the air; A dust cover 320 disposed above the filter assembly 310 to allow the filter assembly 310 to be selectively detached / attached; The upper portion is formed in an open cylindrical shape, and has a configuration including a dust collecting cylinder 330 for collecting the foreign matter introduced through the suction guide 334 formed perforated to communicate from the outer peripheral surface to the inside, Dust collection unit for a vacuum cleaner, characterized in that the suction guide 334 is provided with a foreign material detecting means 400 for sensing the size and amount of foreign matter flowing into the suction guide 334 to regulate the rotational force of the motor. According to claim 1, The foreign material detecting means 400, A reflection plate 410 mounted on an inner circumferential surface of the suction guide 334 to selectively reflect external light; It is installed on the opposite surface of the reflecting plate 410, and comprises a motor control unit 420 for transmitting the light to the reflecting plate 410 and generates an electrical signal according to the amount of light reflected to regulate the rotational force of the motor. Dust collection unit for vacuum cleaners, characterized in that. The method of claim 2, wherein the motor control unit 420, A light transmitting element 422 which transmits light to the reflecting plate 410; Dust collecting unit for a vacuum cleaner, characterized in that it comprises a light receiving element (424) for detecting the light reflected by the reflector (410). The dust collecting unit of claim 3, wherein the motor controller 420 is an infrared sensor that selectively generates an electrical signal depending on whether light is detected. The dust collecting unit of claim 3, wherein the motor control unit (420) is provided in plurality. The dust collecting unit of claim 3, wherein a power supply terminal (336) is provided at one side of the dust collecting container (330) to apply power to the motor control unit (420) from the outside.

Images