JP2005198754A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner which shows stable dust-collecting performance regardless of hours of use and reduces odors of the exhaust. <P>SOLUTION: Since the vacuum cleaner is constituted to separate dust sticking to a filter 17 in a dust-collecting chamber 18 by a dust separation means 21 and has a dust-accumulating chamber 35 for accumulating the separated dust outside a suction passage, the vacuum cleaner which maintains an outstanding dust-collecting performance and reduces the odors of the exhaust is provided. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a household vacuum cleaner.

  As a conventional vacuum cleaner, the suction port communicates with the suction part of the blower, the suction path from the suction port to the blower is provided with a dust collection chamber that accumulates dust, and the suction side of the blower in the dust collection chamber There was a filter, and the dust collection chamber was connected to the suction side of the blower through the filter. Then, when the blower is operated, dust on the floor or the like is sucked into the main body from the suction port with the pressure, and the filter on the upstream side of the suction side of the blower captures dust components, so that the dust and air are separated, and the air Only the dust is sucked into the blower and exhausted outside the main body, and the dust components captured by the filter are accumulated in the dust collection chamber where the filter is installed, and the vacuum cleaner user collects in the dust collection chamber as necessary. Some have used a filter that throws away dust (for example, see Patent Document 1).

  In addition, without using a disposable dust collection paper pack, it is detachably attached to the suction path of the main body of the vacuum cleaner, and a cylindrical shape is formed in a dust collection case that generates a spiral air flow (so-called cyclone) inside. There is also a cyclone type vacuum cleaner provided with a filter so that dust filtered by the filter can be accumulated in a dust collection case (for example, see Patent Document 2).

  FIG. 6 shows a filter of a conventional filter type vacuum cleaner, which includes a primary filter 52 composed of a net for capturing coarse dust and a secondary filter 53 composed of a non-woven fabric, and is formed by the same frame 54 and formed in a central portion 55. The filter 51 is configured in a state of being folded in half.

  FIG. 7 shows the configuration of a conventional filter type vacuum cleaner. The filter 51 is inserted between the guide ribs 57 on the inner surface of the dust collecting case 56, and an air flow containing a large amount of dust is generated by the suction force of the electric blower 58. Inflow, coarse dust such as cotton was separated and filtered by the primary filter 52, and fine dust was separated and filtered by the secondary filter 53, and only clean air was discharged outside the main body.

FIG. 8 shows the structure of a dust collecting case of a conventional cyclone type vacuum cleaner, which is substantially cylindrical inside a transparent or semi-transparent dust collecting chamber main body 59 formed of a substantially cylindrical transparent synthetic resin or the like. The outer filter 60 and the inner filter 61 are arranged concentrically with the dust collection chamber main body 59. The air containing dust that has entered the dust collection chamber main body 59 swirls along the inner wall of the dust collection chamber main body 59. While flowing inside the cyclone space 62, the dust flows into the outer filter 60 and large dust (coarse dust) accumulates in the space 63 at the bottom of the dust collection chamber main body 59. Similarly, the air flowing into the outer filter 60 further swirls. In the cyclone space 64, the air swirls and flows into the inner filter 61, and dust having a size that cannot pass through the inner filter 61 is accumulated in the space 65. A bottom lid 68 configured to be freely opened and closed by a hinge 67 provided at a lower portion of the handle 66 is attached to the bottom of the dust collection chamber main body 59. The bottom lid 68 pushes the upper part of the lever 70 provided below the intake pipe 69, whereby the clamp 71 formed at the lower end of the lever 70 is disengaged from the engaging claw 72 of the bottom lid 68, and the dust collecting chamber. The lower end opening of the main body 59 is opened.
JP 62-49820 A JP 2003-180577 A

  However, in the conventional configuration, as the amount of dust attached to the filter surface increases, the pressure loss in the filter increases, the suction force from the suction port decreases, and the dust collection performance deteriorates. That is, the dust collection performance has a problem that it becomes lower as the usage time becomes longer after peaking when there is no dust in the dust collection chamber.

  In order to return the dust collection performance to the peak, it is necessary to clean the filter or wash it with water, which is very troublesome. Also, at this time, the trash was attached to the hand of the user of the vacuum cleaner, or the trash was dropped into the room, which was very inconvenient.

  On the other hand, in the conventional configuration, the air sucked from the suction port always touches the dust accumulated in the main body and is discharged outside the cleaner, so the exhaust of the cleaner is very odorous and uncomfortable. There was also a problem of being.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide a vacuum cleaner that has a stable dust collecting performance regardless of usage time and eliminates an unpleasant exhaust odor.

  In order to solve the above-described conventional problems, a vacuum cleaner according to the present invention includes a main body including a suction fan, a suction port communicating with a suction unit of the blower, and a suction path from the suction port to the blower. A dust collecting chamber that collects dust, a filter that is mounted in the dust collecting chamber and filters dust in the air that is taken into the dust collecting chamber, and a dust peeling means that peels dust adhering to the filter from the filter And a dust accumulating chamber for storing the dust separated by the dust removing means, and the dust accumulating chamber is arranged outside the suction path from the suction port to the blower.

  As a result, the dust covering the filter surface is removed using the dust removing means to stabilize the dust collecting performance, and the exhausted odor is reduced because the sucked air does not pass through the already accumulated dust. A vacuum cleaner can be realized.

  The vacuum cleaner of the present invention can realize a vacuum cleaner having a stable suction performance regardless of use time by realizing automatic cleaning of a filter that separates dust and air.

  Further, by providing the dust accumulation chamber for accumulating dust outside the air suction path, a cleaner with reduced exhaust odor can be realized.

  A first invention includes a main body that includes a blower for suction, a suction port that communicates with a suction portion of the blower, and a dust collection chamber that is disposed in a suction path from the suction port to the blower and accumulates dust. A filter that filters dust in the air that is mounted in the dust collection chamber and is taken into the dust collection chamber, dust separation means that separates dust attached to the filter from the filter, and dust that has been separated by the dust separation means. By using a vacuum cleaner that has a dust storage chamber for collecting and disposes the dust storage chamber outside the suction path from the suction port to the blower, dust attached to the filter surface is removed using a dust peeling means. Since it is stored in the dust accumulation chamber outside the suction path of the blower, stable suction performance and odor-reduced exhaust can be exhibited.

  In the second invention, the dust removing means of the first invention guides the separated dust to the dust accumulating section, and compresses the dust in the dust accumulating chamber so that the dust attached to the filter surface uses the dust removing means. It is removed and transported to the dust accumulation chamber and compressed, so that stable suction performance and accumulation of a large amount of dust can be exhibited.

  3rd invention has the power switch which turns on and off the supply of the electric power to the air blower of 1st or 2nd invention, and the timer which measures time, It turned on after turning off the said power switch By operating the dust collection chamber wall surface dust peeling means and the filter dust peeling means for a certain period of time after the cleaning, dust on the filter surface is removed after the cleaning is completed, so that particularly stable dust collection performance can be exhibited at the start of cleaning.

  The fourth invention has a plurality of filters according to any one of the first to third inventions, and the filters are arranged in parallel from the suction port side to the blower side of the suction path, so that the surface area of the filter can be increased and captured. Since the amount of dust is increased, stable dust collection performance can be demonstrated.

  According to the fifth aspect of the invention, the finer the dust that is removed from the air sucked by the filter, the closer the filter is provided in the downstream side of the suction path of the fourth aspect of the invention. As a result, it is possible to improve the dust capturing performance and to exhibit extremely excellent dust collecting performance.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 shows the configuration of the electric vacuum cleaner according to the first embodiment of the present invention, and FIG. 2 shows the appearance of the suction port on the floor. Reference numeral 11 denotes a blower, which includes a motor unit 11a and a fan unit 11b. A suction part 12 is provided in the center of the fan part 11b. 11c shows the exhaust port provided in the motor part 11a. The blower 11 is supported by the main body 13 via a front anti-vibration rubber 14 and a rear anti-vibration rubber 15 that also serve as a seal for the main body 13. Reference numeral 16 denotes a suction port, which communicates with the suction portion 12 of the blower 11 through a dust collection chamber 18 having a plurality of filters 17a, 17b, and 17c. As shown in FIGS. 3 and 4, the filters 17a, 17b, and 17c are formed in a planar shape. The coarseness of the filters 17a, 17b, and 17c is increased toward the suction port 16 side of the suction path. Further, since the surface of each of the filters 17a, 17b, and 17c is vapor-deposited with a metal such as stainless steel, the surface resistance is remarkably reduced as compared with the case where vapor deposition is not performed. The filters 17a, 17b, and 17c are fixed to the dust collecting chamber 18 by filter support members 20a, 20b, and 20c, respectively, but the filters 17a, 17b, and 17c and the filter support members 20a, 20b, and 20c are subjected to antistatic treatment. It is designed not to be charged with positive or negative static electricity.

  Reference numeral 21 denotes dust peeling means, which includes filter pressing portions 22a, 22b and 22c, a brush drive motor 26, and motor power transmission portions 27a, 27b and 27c. The filter pressing portion 22a is composed of a brush 23 and a brush drive shaft 24a, and the tip of the brush 23 is attached so as to urge the surface of the filter 17a and always presses while contacting the surface of the filter 17a. The motor power transmission unit 27a includes a worm wheel 10 attached to the shaft 19 of the brush drive motor 26 and a brush drive shaft 24a that is a worm that meshes with the worm wheel 10, and reduces the rotational torque of the brush drive motor 26 to drive the brush. It is transmitted to the shaft 24a. The motor power transmission units 27b and 27c have the same configuration as the motor power transmission unit 27a.

  Since the surface of the brush 23 is deposited with a metal such as stainless steel, the contact resistance of the surface is remarkably reduced as compared with the case where the brush 23 is not deposited. The brush 23 is subjected to antistatic treatment so as not to be charged with positive or negative static electricity. The filter pressing portions 22b and 22c have the same configuration as the filter pressing portion 22a.

  The filter pressing portion 22a includes a brush 23 and a brush support 25, and the tip of the brush 23 is attached so as to urge the surface of the filter 17c and always presses while contacting the surface of the filter 17c. The brush support 25 is provided with a screw 33 having the same nominal diameter as the trapezoidal screw of the motor power transmission portion 27a and a hole 34 having a diameter slightly larger than the outer diameter of the motor power transmission shaft 27a. Since the surface of the brush 23 is deposited with a metal such as stainless steel, the contact resistance of the surface is remarkably reduced as compared with the case where the brush 23 is not deposited. The brush 23 and the brush support 25 are subjected to antistatic treatment so as not to be charged with positive or negative static electricity.

  A lower portion of the dust collection chamber 18 is opened as a dust discharge port 37, and a dust storage chamber 35 having an upper portion opened as a dust input port 38 is provided below the dust collection chamber 18. The dust accumulation chamber 35 can be divided into three, that is, a dust accumulation chamber 35a, a dust accumulation chamber 35b, and a dust accumulation chamber 35c, and each can be detached from the main body 13 independently. The dust accumulation chamber 35 is provided below the filters 17 a, 17 b, 17 c and the dust peeling means 21. Therefore, the dusts 36a, 36b, and 36c adhering to the filters 17a, 17b, and 17c are peeled off by the filter pressing portions 22a, 22b, and 22c and pushed downward, and are discharged from the dust discharge port 3 to the seven dust accumulation chambers 35a, 35b, 35c is stored and accumulated. At this time, the brush support 25 descends into the dust accumulation chambers 35a, 35b, and 35c, so that the dust 38a, 38b, and 38c stored in the dust accumulation chamber 35 are transferred to the brush support 25 and the dust accumulation chamber bottom surface 39. Compressed between.

  The operation of the dust removing means 21 of the filters 17a, 17b, and 17c will be described with reference to FIGS. The filter pressing portion 22a is stationary with the trapezoidal screw 33 fastened to the motor power transmission portion 27a and the brush guide 40 (the same outer diameter as the motor power transmission shaft 27a) passing through the hole 34. When the brush drive motor 26 is energized, the motor power transmission unit 27a rotates. The rotation of the motor rotation shaft 19 is transmitted to the brush drive shaft 24a, which is a worm, via the worm wheel 10 attached to the motor rotation shaft 19, so that the brush drive shaft 24a rotates. The brush drive shaft 24a continues to rotate without moving in the vertical direction, and the filter pressing portion 22a translates in the direction of the arrow 31 along with the rotation. At this time, since the hole 34 moves while being in contact with the brush guide 40, the filter pressing portion 22a moves while maintaining the state where the tip of the brush 23 urges the surface of the filter 17a. As a result, the brush 23 can rub the surface of the filter 17a in one direction to remove the dust 36a on the surface of the filter 17a. As described above, the separated dust 36a continues to be pushed by the filter pressing portion 22a and passes from the dust discharge port 37 of the dust collection chamber 18 to the inside of the dust accumulation chamber 35a through the opening at the top of the dust accumulation chamber 35a. And stored. When the brush drive motor 26 is rotated for a certain time, the filter pressing portion 22a moves linearly from the initial position 49 to the end position 50. At this time, the dust 38 a stored in the dust accumulation chamber 35 is compressed between the brush support 25 and the dust accumulation chamber bottom surface 39.

  Next, when the brush driving motor 26 is reversely rotated for the same time as the time required for linearly moving the filter pressing portion 22a from the initial position 49 to the end position 50, the filter pressing portion 22a is moved in parallel in the direction opposite to the arrow 31 and initially moved. Return to position 49.

  FIG. 5 shows a configuration of on / off control of power supply to the brush drive motor 26. 41 is a power switch of the vacuum cleaner that turns on / off the power supply to the blower 11, 42 is a power change detection unit that detects that the power supplied to the blower 11 has changed to 0, and 43 is a power change detection unit 42. It is a time measurement part which measures elapsed time according to an output. When the cleaning is finished and the power switch 41 is turned off by the vacuum cleaner user and the power change detection unit 42 detects that the power has become 0, the motor drive means 44 uses the signal from the power change detection unit 42 to turn the power source 9 on. The time measuring unit 43 is controlled so as to start measuring the time after receiving the signal from the power change detecting unit 42 by the signal from the power change detecting unit 42 at the same time as the current flows from the motor to the brush drive motor 26. When the time measured by the time measuring unit 43 exceeds a predetermined time, the motor driving means 44 cuts off the current from the power source 9 to the brush driving motor 26 by a signal from the time measuring unit 43.

  Next, the operation will be described. When the blower 11 is driven, a suction force is generated, and dust on the floor surface 46 is sucked from the suction port 16 as indicated by an arrow 45, and dust-mixed air is separated by the filters 17a, 17b, and 17c. Only the air is exhausted from the main body exhaust port 32 of the main body 13 as indicated by the arrow 30a. Thereby, suction cleaning of the floor surface can be performed. When the cleaning operation is completed, the vacuum cleaner user turns off the power switch 41.

  Since the power change detection unit 42 detects that the power has become 0, the motor driving means 8 causes a current to flow from the power source 9 to the brush driving motor 26, and the brush 23 is pressed against the surface of the filter 17, so that the linear reciprocation is determined in advance. Do exercise. As a result, at the same time as the power switch 41 is turned off, the dust adhering to the surface of the filter 17a is peeled off by the brush 23, and the surface of the filter 17a is returned to the same state as a new product to which no dust is attached.

  When the dust is peeled off, the surface contact resistance of the filter 17a and the brush 23 is remarkably low, so that dust separation is easy, and there is no dust that remains without being peeled off. Further, the anti-static treatment is applied to the filter 17a and the brush 23 so that the filter 17a and the brush 23 are not charged with static electricity, so that dust does not adhere to the filter 17a and the brush 23 due to static electricity. The separated dust 36a continues to be pushed by the filter pressing portion 22a, and is stored and accumulated in the dust accumulation chamber 35a from the dust discharge port 37 of the dust collection chamber 18 through the opening in the upper portion of the dust accumulation chamber 35a. The dust 38 a stored in the dust accumulation chamber 35 is compressed between the brush support 25 and the dust accumulation chamber bottom surface 39. The same applies to the filters 17b and 17c.

  Since the three dust storage chambers are separated and detachable from the main body, the dust in the dust storage chambers 35a, 35b, and 35c is reduced according to the amount of dust accumulated in the dust storage chambers 35a, 35b, and 35c. Each can be discarded independently.

  The dust 36a separated from the filter 17a is accumulated in the dust accumulation chamber 35a, the dust 36b separated from the filter 17b is accumulated in the dust accumulation chamber 35b, and the dust 36c separated from the filter 17c is accumulated in the dust accumulation chamber 35c after completion of cleaning. It will be stored temporarily.

  That is, the dust-mixed air sucked from the suction port 16 is exhausted out of the cleaner while filtering the dust in the order of the filters 17a, 17b, and 17c. Since the dust accumulated in 35b and 35c is not touched at all, the smell of old dust is not transferred to the exhaust, and no unpleasant exhaust odor peculiar to the cleaner is generated.

  As described above, the dust on the filter surface in the dust collecting chamber 18 is peeled off by the dust peeling means 21 during cleaning, so that the pressure loss does not fluctuate greatly due to the filter being clogged with dust. . As a result, there is little change in the suction force from the suction port 16 and stable dust collection performance can be exhibited. Further, since the dust on the filter surface in the dust collecting chamber 18 continues to be automatically peeled off, there is no need for any filter maintenance such as cleaning of the filter or washing with water by the electric vacuum cleaner user. Furthermore, since the dust of the brush of the dust peeling means 21 is good, maintenance of this brush is unnecessary.

  Further, the period for separating air and dust and the container for storing the dust are separated, and the container for storing the dust can be made simple so as not to include other parts such as a filter, so that the waste disposal workability can be improved.

  Furthermore, the unpleasant exhaust odor peculiar to a vacuum cleaner can be suppressed completely.

  In the present embodiment, the linear motion of the filter pressing portion 22a is one reciprocation. However, this does not limit the number of reciprocations, and if the number of reciprocations increases, the dust 36c on the filter 17c is surely peeled off. Needless to say.

  Further, in the present embodiment, when the power switch 40 is turned off and the power change detection unit 42 detects that the power becomes zero, the brush drive motor 26 that causes a current to flow from the power source 9 to the brush drive motor 26 for a certain period of time. The power supply is turned on and off, but the power switch 40 is turned on and the power change detection unit 42 detects the power supplied to the blower 11, and then the current is supplied from the power source 9 to the brush drive motor 26 for a certain period of time. The same effect can be obtained even if the on / off control of the power supply to the brush drive motor 26 is performed.

  As described above, the vacuum cleaner according to the present invention realizes the visibility of the dust collection chamber regardless of the usage time by realizing automatic cleaning of the dust collection chamber wall surface and automatic cleaning of the filter that separates dust and air. Since it can be secured, it can also be applied to uses such as household and commercial vacuum cleaners.

The figure which shows the structure of the dust collection part of the vacuum cleaner in Embodiment 1 of this invention. Same as above, external view of inlet on floor The same figure which shows operation | movement of a dust peeling means Sectional drawing which shows dust compression operation | movement of a dust peeling means Block diagram of on / off control of power supply to the dust chamber motor and filter motor The figure which shows the filter of the conventional vacuum cleaner The figure which shows the structure of the conventional vacuum cleaner The figure which shows the structure of the dust collection case of the conventional cyclone type vacuum cleaner

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Blower 12 Suction part 13 Main body 16 Suction port 17a, 17b, 17c Filter 18 Dust collection chamber 21 Dust peeling means 35 Dust accumulation chamber 41 Power switch 43 Time measurement unit

Claims (5)

A main body containing a blower for suction, a suction port communicating with the suction portion of the blower, a dust collection chamber disposed in a suction path from the suction port to the blower, and a dust collection chamber; A filter that filters dust in the air that is mounted and taken into the dust collection chamber, dust separation means that separates dust adhering to the filter from the filter, and a dust storage chamber that collects dust separated by the dust separation means. And a vacuum cleaner that disposes the dust accumulation chamber outside the suction path from the suction port to the blower. 2. The electric vacuum cleaner according to claim 1, wherein the dust peeling means guides the peeled dust to the dust storage unit and compresses the dust in the dust storage chamber. A power switch for turning on / off power supply to the blower and a timer for measuring time, and the dust peeling means is operated for a certain time after the power switch is turned off or turned on. 2. The vacuum cleaner according to 2. The vacuum cleaner according to any one of claims 1 to 3, wherein a plurality of filters are provided, and the filters are arranged in parallel from the suction port side to the blower side of the suction path. The electric vacuum cleaner according to claim 4, wherein the size of the mesh of the filter provided on the downstream side of the suction path is reduced.

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