JP4206766B2 - Electric vacuum cleaner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a household vacuum cleaner.
[0002]
[Prior art]
As a conventional vacuum cleaner, the suction port communicates with the suction part of the blower, and a dust collection chamber that accumulates dust is provided in the suction path from the suction port to the blower. A filter is disposed on the suction side, and the dust collection chamber and the suction side of the blower are connected via the filter. Then, when the blower is operated, dust on the floor or the like is sucked into the main body together with air from the suction port with the pressure, and the filter on the front 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 thrown away dust (see, for example, Patent Document 1).
[0003]
FIG. 4 shows a filter of a conventional 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 is separated from a central portion 55. The filter 51 is configured in a folded state.
[0004]
FIG. 5 shows the configuration of a conventional vacuum cleaner. The filter 51 is inserted between the guide ribs 66 on the inner surface of the dust collecting case 57, and an air flow containing a large amount of dust flows in by the suction force of the electric blower 58. In addition, coarse dust such as cotton is separated and filtered by the primary filter 52 and fine dust is separated and filtered by the secondary filter 53, and only clean air is discharged outside the main body.
[0005]
[Patent Document 1]
Japanese Patent Laid-Open No. 62-49820 [0006]
[Problems to be solved by the invention]
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. In other words, the dust collection performance becomes lower as the usage time becomes longer after peaking when there is no dust in the dust collection chamber.
[0007]
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. In addition, at this time, trash adhered to the hands of the user of the vacuum cleaner or dropped trash into the room, which was very unusable.
[0008]
This invention solves the said subject, and it aims at implement | achieving the cleaner with stable dust collection performance irrespective of use time.
[0009]
[Means for Solving the Problems]
In order to solve the above-mentioned conventional problems, the vacuum cleaner of the present invention includes a main body containing a suction fan, a suction port communicating with a suction part of the blower, and a suction path from the suction port to the blower. A dust collection chamber that is disposed and accumulates dust; a filter that is mounted in the dust collection chamber and filters dust in the air that is taken into the dust collection chamber; and a dust peeling means that peels dust adhering to the filter from the filter. And a peeling aid that faces the dust peeling means across the filter, the dust peeling means rotating a filter pressing portion that applies a frictional force to the upstream surface of the filter, and the filter pressing portion possess a filter pressing section rotating means including a motor, a release grant body rotating means comprising a motor for rotating the peeling grant body, energizing of the blower In a configuration in which electric power is sometimes supplied to the motor and the dust peeling means is driven, each of the filters, the dust peeling means, and the peeling aid is provided, and the plurality of filters are arranged on the suction port side of the suction path. Of the dust separating means for separating dust adhering to the filter provided downstream from the suction path and having a smaller opening ratio as the filter provided in the downstream from the suction path. Since the filter pressing part is characterized by a slower rotation speed , the dust covering the filter surface can be removed during operation using the dust removing means, so that a vacuum cleaner with stable dust collection performance can be realized. it can.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 is a collection body that collects dust that is disposed in a suction path from the suction port to the blower, a main body that contains a blower for suction, a suction port that communicates with a suction part of the blower, and the suction port. A dust chamber, a filter that is mounted in the dust collection chamber and filters dust in the air taken into the dust collection chamber, dust separation means for separating dust attached to the filter from the filter, and the filter sandwiched between the filter and a peeling grant body facing the dust separating means, the dust separating means includes a filter pressing portion to apply a frictional force to the upstream surface of the filter, the filter pressing unit rotating means comprising a motor for rotating the filter pressing unit When the peeling subsidized body possess a release grant body rotating means comprising a motor for rotating, energizing at the same time supply power to the motor of the blower In the configuration in which the dust removing means is driven, the filter includes a plurality of the filters, the dust removing means, and the peeling aid, and the plurality of filters are arranged in parallel from the suction port side to the blower side of the suction path. The filter pressing portion of the dust removing means for removing dust adhering to the filter provided on the downstream side of the suction path and the lower the aperture ratio of the filter provided on the downstream side of the suction path, By using a vacuum cleaner characterized by being slow , dust covering the filter surface can be removed during operation using the dust peeling means, so that a vacuum cleaner with stable dust collection performance can be realized. .
Further, since the pressure of the blower applied to the filter in front of the peeling aid is significantly reduced, the dust peeling efficiency of the dust peeling means during operation of the vacuum cleaner body is improved, and stable dust collection performance can be exhibited.
Also, by arranging a plurality of filters with a smaller opening ratio on the downstream side, the chance of sucking dust and separating it from the air increases, and the dust on the filter can be peeled off reliably, thus maintaining stable dust collection performance. be able to.
Moreover, the dust peeling speed according to the dust accumulation speed on the filter can be achieved, and a vacuum cleaner that keeps the dust collecting performance can be realized.
[0011]
In the invention described in claim 2, in particular, the filter pressing portion rotating means according to claim 1 also serves as a peeling assisting body rotating means, thereby reducing the number of parts and exhibiting stable dust collection performance with a compact configuration. A vacuum cleaner with excellent dust collection performance can be realized.
[0012]
According to the third aspect of the present invention, the dust peeling means and the peeling aid can be attached at the same time by integrally forming the dust peeling means and the peeling aid according to the first or second aspect. A significantly improved vacuum cleaner can be realized.
[0013]
The invention described in claim 4 has, in particular, a dust accumulation chamber for storing the dust separated by the dust removing means below the dust removing means and the filter according to any one of claims 1 to 3. The dust storage chamber is configured to be detachable from the main body, so that dust is collected in a dust storage chamber separate from the dust collection chamber, and once separated, the dust does not reattach to the filter. A vacuum cleaner that maintains dust performance can be realized.
[0014]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0015]
Example 1
FIG. 1 shows the configuration of the vacuum cleaner in the first embodiment of the present invention, FIG. 2 shows the configuration of the dust accumulation chamber, and FIG. 3 shows the appearance of the suction port on the floor. 1 to 3, reference numeral 11 denotes a blower, which includes a motor unit 11 a and a fan unit 11 b. 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. 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 significantly 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.
[0016]
Further, in the path from the inside of the dust collection chamber 18 to the blower, the air is provided in the order of filters 17a, 17b, and 17c from the side closer to the air inlet 16, and the aperture ratio of the filter is as follows: filter 17a> filter 17b> filter 17c.
Thus, the closer to the suction port 16, the larger.
[0017]
Reference numeral 21 denotes dust peeling means, which includes filter pressing portions 22a, 22b, 22c, a brush rotating motor (filter pressing portion rotating means or peeling assisting body rotating means) 26, and motor power transmission portions 27a, 27b, 27c. . The filter pressing portion 22a includes a brush 23 and a brush rotating 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 timing belt 28a and a pulley 29a. The motor power transmission unit 27a decelerates the rotational torque of the brush rotation motor 26 and transmits it to the brush rotation shaft 24a. 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 reduction ratio of the rotational torque of the brush rotation motor 26 in the motor power transmission units 27a, 27b, 27c is
Motor power transmission unit 27a <motor power transmission unit 27b <motor power transmission unit 27c, so that the closer to the suction port 16, the smaller the rotation speed, and the rotation speed of the brush rotation shafts 24a, 24b, 24c is the brush rotation shaft 24a. > Brush rotating shaft 24b> Brush rotating shaft 24c
Thus, the closer to the suction port 16, the larger.
[0018]
A peeling aid 34a made of a very fine filter (small aperture ratio), a resin plate, or the like is disposed in front of the filter pressing portion 22a across the filter 17a so as to face the filter pressing portion 22a. It is composed integrally with. For this reason, since the peeling assisting body 34a is rotated by the brush rotating motor 26, the brush rotating motor 26 also serves as the peeling assisting body rotating motor, reducing the number of parts and realizing the entire downsizing.
[0019]
Further, the presence of the peeling aid 34a makes it difficult for the pressure of the blower 11 to act on the brush 23 contact portion of the filter 17a, and the force toward the blower 11 side is applied to the dust adhering to the brush 23 contact portion of the filter 17a. It becomes difficult to work and it becomes easy to peel off this dust. The configuration of the peeling aids 34b and 34c is the same as that of the peeling aid 34a.
[0020]
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.
[0021]
The dust storage chamber 35 can be divided into a dust storage chamber 35 a, a dust storage chamber 35 b, and a dust storage chamber 35 c, and each is independently detachable from the main body 13. 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 are blown out of the dust collecting chamber 18 from the dust discharge port 37, and the dust input port 38. Are stored and accumulated in the dust accumulation chambers 35a, 35b, and 35c, respectively. As a result, no dust remains in the dust collection chamber 18.
[0022]
Next, the operation will be described. When the blower 11 is driven, a suction force is generated, dust on the floor 31 is sucked from the suction port 16 as indicated by an arrow 30, dust is separated by the filters 17a, 17b, and 17c, and a clean air current is indicated by an arrow 30a. The air is exhausted from the main body exhaust port 32 of the main body 13. Thereby, suction cleaning of the floor surface can be performed. Since the aperture ratio of the filter increases in the order of the filters 17a, 17b, and 17c, a part of the dust that cannot be separated by the filter 17a is separated by the filter 17b, and the dust that cannot be separated by the filter 17b. It isolate | separates with the filter 17c. The dusts 36a, 36b, and 36c separated by the filters 17a, 17b, and 17c are coarser in the order of the dusts 36a, 36b, and 36c, and the amount of dust is increased.
[0023]
At the same time as the air blower 11 is energized, power is supplied to the brush rotation motor 26 and the dust peeling means 21 is driven. Then, the rotational force of the brush rotating motor 26 is decelerated through the timing belt 28a and the pulley 29a and transmitted to the brush rotating shaft 24a. Therefore, the brush 23 continues to rotate while being pressed against the surface of the filter 17a, or repeatedly rotates forward and reverse, and the dust 36a separated by the filter 17a and attached to the surface of the filter 17a is peeled off by the brush 23, and the peeled dust is removed. Is accumulated in the dust accumulation chamber 35a. 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.
[0024]
Further, since the peeling aid 34a is provided in front of the filter pressing portion 22a across the filter 17a so as to face the filter pressing portion 22a, the pressure of the blower 11 is difficult to work on the brush 23 contact portion of the filter 17a. A force directed toward the blower 11 becomes difficult to act on the dust adhering to the brush 23 contact portion of the filter 17a, and this dust is easily peeled off.
[0025]
Similarly, the dust 36b separated by the filter 17b and adhered to the surface of the filter 17b is separated by the brush 23b. The separated dust is accumulated in the dust accumulation chamber 35b, separated by the filter 17c, and adhered to the surface of the filter 17c. Is peeled off by the brush 23c, and the peeled dust is accumulated in the dust accumulation chamber 35c. The same applies to the dust separation property and the reattachment prevention property of the separated dust.
[0026]
The dusts 36a, 36b, and 36c separated by the filters 17a, 17b, and 17c have different accumulation speeds as described above. However, since the reduction ratios in the motor power transmission units 27a, 27b, and 27c are changed, The frequency at which the brush 23 peels from the filter surface is appropriate according to the accumulation speed.
[0027]
Since the three dust storage chambers are separated and detachable from the main body, the dust in the dust storage chambers 3535a, 35b, and 35c can be reduced according to the amount of dust accumulated in the dust storage chambers 35a, 35b, and 35c. Each can be discarded independently.
[0028]
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.
[0029]
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.
[0030]
In addition, the stage 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.
[0031]
In addition, although the present Example demonstrated the case where a fan was provided, it is not limited to this, Even if it uses a compressor instead of a fan, there is no trouble.
[0032]
In addition, in FIGS. 1 and 2 of this embodiment, the connecting portion for integrally configuring the dust peeling means and the peeling aid is described so as to rotate around the outer periphery of the filter, but this is not the only case. It is not a thing, and even if it connects with a thing like the rotating shaft which penetrates the center of a filter, it does not have a trouble.
[0033]
【The invention's effect】
As described above, according to the present invention, by realizing automatic cleaning of a filter that separates dust and air, it is possible to realize a vacuum cleaner having a stable dust collection performance regardless of usage time.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of a dust collecting portion of a vacuum cleaner in Embodiment 1 of the present invention. FIG. 2 is a diagram showing a configuration of a dust accumulation chamber of the dust collecting portion in the vacuum cleaner. [Fig. 4] Fig. 5 shows a conventional vacuum cleaner filter [Fig. 5] Fig. 5 shows the configuration of a conventional vacuum cleaner [Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 Blower 13 Main body 16 Suction port 17a, 17b, 17c Filter 18 Dust collection chamber 21 Dust peeling means 22a, 22b, 22c Filter pressing part 26 Brush rotation motor (Filter pressing part rotating means, peeling aid rotating means)
34a, 34b, 34c Peeling aid 35, 35a, 35b, 35c Dust accumulation chamber

Claims (4)

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, a dust peeling means that peels the dust adhering to the filter from the filter, and a peeling aid that faces the dust peeling means across the filter The dust peeling means comprises: a filter pressing part that applies a frictional force to the upstream surface of the filter; a filter pressing part rotating means that includes a motor that rotates the filter pressing part; and the peeling aid. possess a release grant member rotation means consisting of a motor, the same time the power to the motor current and the blower is supplied drive the dust separating means A plurality of the filters, the dust stripping means, and the stripping aid, and the plurality of filters are juxtaposed from the suction port side to the blower side of the suction path. The filter provided at the downstream side has a smaller aperture ratio, and the filter pressing portion of the dust removing means for removing dust attached to the filter provided further downstream of the suction path has a lower rotational speed. Electric vacuum cleaner.   The electric vacuum cleaner according to claim 1, wherein the filter pressing portion rotating means also serves as a peeling aid rotating means.   The electric vacuum cleaner according to claim 1 or 2, wherein the dust peeling means and the peeling aid are integrally formed. 4. The dust storage chamber according to claim 1 , further comprising a dust storage chamber for storing the dust stripped by the dust stripping unit below the dust stripping unit and the filter, wherein the dust storage chamber is configured to be detachable from the main body. The vacuum cleaner described.

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