CN112006606A - Dust collecting device and electric dust collector - Google Patents
Dust collecting device and electric dust collector Download PDFInfo
- Publication number
- CN112006606A CN112006606A CN202010461294.3A CN202010461294A CN112006606A CN 112006606 A CN112006606 A CN 112006606A CN 202010461294 A CN202010461294 A CN 202010461294A CN 112006606 A CN112006606 A CN 112006606A
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- China
- Prior art keywords
- dust
- container
- collecting
- separating
- collecting device
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
- A47L9/1608—Cyclonic chamber constructions
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
- A47L9/1658—Construction of outlets
- A47L9/1666—Construction of outlets with filtering means
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
- A47L9/1683—Dust collecting chambers; Dust collecting receptacles
Abstract
Provided are a dust collecting device capable of suppressing scattering when dust is discarded, and an electric vacuum cleaner provided with the same. The dust collecting device is provided with a first separating part, a second separating part and a container (1). The first separating section separates dust from dust-containing air. The second separating portion separates dust that is not separated by the first separating portion. The container (1) collects the dust separated by the first separating part and the second separating part. The container (1) has a first collecting section (13), a second collecting section (14), and a protruding section (15). The first collecting part (13) collects the dust separated by the first separating part. The second collecting part (14) collects the dust separated by the second separating part. The protruding portion (15) gradually tapers inward from the first collecting portion (13) side toward the second collecting portion (14) side to protrude.
Description
This application claims priority based on Japanese patent application No. 2019-101209 (application date: 05/30/2019), the entire contents of which are incorporated herein by reference.
Technical Field
Embodiments of the present invention relate to a dust collecting device having a container for collecting dust separated by a first separating part and a second separating part, and an electric vacuum cleaner including the same.
Background
Conventionally, as a dust collecting device used in an electric vacuum cleaner or the like, there is a device provided with a separating unit for separating coarse dust and fine dust, respectively. The first and second collecting parts collect the coarse and fine dust separated by the separating part into the container. When the collected dust is discarded, the container is turned upside down so that the second collecting portion side is positioned on the lower side, and the dust is discarded from a dust discarding port at the end of the container. In this case, in the case of a container in which the second collecting portion is formed in a spread shape with respect to the first collecting portion, there is a possibility that the dust collected in the first collecting portion may scatter from the dust disposal port.
Disclosure of Invention
The invention provides a dust collecting device capable of preventing flying when discarding dust and an electric dust collector with the same.
The dust collecting device of the embodiment comprises a first separating part, a second separating part and a container. The first separating section separates dust from dust-containing air. The second separating portion separates dust that is not separated by the first separating portion. The container collects the dust separated by the first separating part and the second separating part. The container has a first collecting portion, a second collecting portion, and a protruding portion. The first collecting part collects the dust separated by the first separating part. The second collecting part collects the dust separated by the second separating part. The protruding portion gradually tapers inward from the first collecting portion side toward the second collecting portion side and protrudes.
According to the dust collecting device with the above configuration, when the dust is discarded, the dust collected in the first collecting portion is guided to the inside of the container along the protruding portion, and thus the dust is not easily scattered.
Drawings
Fig. 1 is a sectional view showing a container of a dust collecting device according to embodiment 1.
Fig. 2 is a sectional view showing a state where dust is discarded from the container of embodiment 1.
Fig. 3 is a sectional view of the dust collecting device of embodiment 1.
Fig. 4 is an enlarged cross-sectional view of a part of the dust collecting device of embodiment 1.
Fig. 5 is a sectional view of an electric vacuum cleaner including the dust collecting device of embodiment 1.
Fig. 6 is a front view of the electric vacuum cleaner of embodiment 1.
Fig. 7 is a plan view of the electric vacuum cleaner of embodiment 1.
Fig. 8 is an oblique view of the electric vacuum cleaner of embodiment 1.
Fig. 9 is a sectional view showing a container of the dust collecting device according to embodiment 2.
Detailed Description
(embodiment 1)
Hereinafter, embodiment 1 will be described with reference to the drawings.
In fig. 3, DC denotes a dust collecting device. The dust collector DC separates and collects dust from the dust-containing air. The dust collecting device DC is formed in a cylindrical shape. The dust collector DC includes a container 1 for storing dust. The dust collecting device DC includes a mounting portion 2 mounted on the container 1. The dust collector DC is provided with a first separating part 3 and a second separating part 4 for separating dust. The first separating unit 3 and the second separating unit 4 may be any dust separating method. In the present embodiment, the first separating unit 3 and the second separating unit 4 are centrifugal separating units for centrifugally separating dust.
The container 1 constitutes one end of the dust collecting device DC. As shown in fig. 1, the container 1 includes a cylindrical wall portion 10. The container 1 further includes a circular bottom 11. One end of the wall 10 is closed by a bottom 11. That is, the container 1 is formed in a bottomed cylindrical shape. The other end of the wall portion 10 serves as a dust disposal port 12. As shown in fig. 3, the attachment portion 2 is detachable from the dust disposal port 12. The dust disposal port 12 is opened and closed by attaching and detaching the attachment portion 2. The central axis of the container 1 coincides or substantially coincides with the central axis a1 of the dust collecting device DC.
Further, the container 1 includes a first collecting portion 13. The first collecting section 13 collects the dust separated by the first separating section 3. The first accumulating portion 13 is formed at one end of the container 1. The first collecting portion 13 is surrounded by the wall portion 10 and the bottom portion 11.
Further, the container 1 includes a second collecting section 14. The second collecting section 14 collects the dust separated by the second separating section 4. The second collecting section 14 is formed at the other end of the container 1. The second collecting portion 14 is formed adjacent to the first collecting portion 13. The second collecting portion 14 is surrounded by the wall portion 10. Further, the second collecting portion 14 is formed between the mounting portion 2 and the wall portion 10 in a state where the mounting portion 2 is mounted to the container 1.
As shown in fig. 1, the container 1 includes a protrusion 15. The protruding portion 15 is located at the boundary between the first collecting portion 13 and the second collecting portion 14. The protruding portion 15 gradually tapers inward from the first collecting portion 13 side toward the second collecting portion 14 side and protrudes. That is, the protrusion 15 has a first inclined surface 151 that decreases in diameter from one end portion of the container 1 toward the other end portion. In the present embodiment, the first inclined surface 151 is a linear tapered portion inclined at a constant or substantially constant inclination angle. In the present embodiment, the protruding portion 15 gradually tapers inward from the second collecting portion 14 side toward the first collecting portion 13 side and protrudes. That is, in the present embodiment, the projecting portion 15 has the second inclined surface 152 which is reduced in diameter from the other end portion toward the one end portion of the container 1. In the present embodiment, the second inclined surface 152 is a linear tapered portion inclined at a constant or substantially constant inclination angle. In the present embodiment, the inclination angle of the second inclined surface 152 with respect to the axial direction of the container 1 is set to be larger than the inclination angle of the first inclined surface 151. The first inclined surface 151 and the second inclined surface 152 of the projection 15 are formed to be connected in a stepped shape in the axial direction of the container 1. The projection 15 has the smallest radial dimension at the position where the first inclined surface 151 and the second inclined surface 152 are connected. Further, as shown in fig. 3, the protrusion 15 receives the mounting portion 2 at a position where the first inclined surface 151 and the second inclined surface 152 are continuous. That is, the protruding portion 15 is a supporting portion for supporting the mounting portion 2 with respect to the container 1. In the present embodiment, the protruding portion 15 is disposed near the other end portion in the axial direction of the container 1. That is, in the present embodiment, the first collecting portion 13 is set to be larger in collecting amount than the second collecting portion 14.
As shown in fig. 1, the maximum diameters of the container 1 on the first collecting portion 13 side and the second collecting portion 14 side with the protruding portion 15 therebetween are set to be equal or substantially equal. In the present embodiment, the inner surface and the outer surface of the container 1 are gradually expanded in diameter as they are away from the protruding portion 15. That is, in container 1, the end portion on the bottom portion 11 side has the largest diameter at first accumulating portion 13. In the case of the container 1, the end portion on the dust discard port 12 side has the largest diameter in the second collecting portion 14. That is, the radial dimension of the bottom portion 11 and the radial dimension of the dust-discarding port 12 are set to be equal or substantially equal to each other.
A recess 16 is formed in the outer surface of the container 1 at a position corresponding to the projection 15. As shown in fig. 2, the recess 16 is a finger rest for placing a finger F when gripping the container 1. As shown in fig. 1, the recess 16 is formed along the shape of the protrusion 15. The recess 16 is gradually reduced from the first collecting portion 13 side toward the second collecting portion 14 side. That is, the recess 16 has a first outer inclined surface 161 that decreases in diameter from one end portion of the container 1 toward the other end portion. The first outer inclined surface 161 constitutes an outer surface of the first inclined surface 151 of the protrusion 15. In the present embodiment, the concave portion 16 gradually decreases inward from the second collecting portion 14 side toward the first collecting portion 13 side. That is, in the present embodiment, the recess 16 has the second outer inclined surface 162 which is reduced in diameter from the other end portion toward the one end portion of the container 1. The second outer inclined surface 162 constitutes an outer surface of the second inclined surface 152 of the protruding portion 15. The first outer inclined surface 161 and the second outer inclined surface 162 of the recess 16 are formed continuously in the axial direction of the container 1. The container 1 is formed tapering in the middle of the position of the recess 16.
As shown in fig. 3, the container 1 is formed with an inlet 17 for introducing air containing dust into the interior. The introduction port 17 protrudes from the wall portion 10 of the container 1 in the radial direction. The introduction port 17 is open in the normal direction to the inner surface of the wall portion 10 of the container 1. As shown in fig. 4, a first tangential direction guide 171 and a second tangential direction guide 172 for guiding the dust-containing air in the tangential direction of the inner surface of the wall portion 10 of the container 1 are formed at the opening edge portion of the introduction port 17. The first tangential direction guide 171 and the second tangential direction guide 172 are formed at positions on both sides of the introduction port 17 in the circumferential direction of the container 1. The first tangential direction guide 171 is formed to be gradually inclined toward the second tangential direction guide 172 toward the inside of the container 1. The dust-containing air is guided from the first tangential direction guide 171 toward the second tangential direction guide 172.
As shown in fig. 3, the inlet 17 is enlarged and opened in the circumferential direction and the axial direction of the container 1. In the present embodiment, at least a part of the introduction port 17 is located at a position facing the protrusion 15. That is, at least a part of the introduction port 17 overlaps with the protrusion 15 in the axial direction of the container 1. The introduction port 17 faces the portion on the first collecting section 13 side with respect to the protruding section 15. That is, the introduction port 17 faces the position of the first inclined surface 151 with respect to the protrusion 15. In the present embodiment, the other end side of the introduction port 17 faces the first inclined surface 151 of the protrusion 15. Further, one end portion side of the introduction port 17 extends toward the first collecting portion 13 with respect to the protruding portion 15. That is, the introduction port 17 does not face the position of the second inclined surface 152 with respect to the protrusion 15.
As shown in fig. 4, a guide 18 is formed in the container 1. The guide portion 18 guides the dust-containing air introduced from the introduction port 17 and swirled along the inner surface of the wall portion 10 of the container 1 to the inside of the container 1. The guide portion 18 protrudes from the inner surface of the wall portion 10 of the container 1. The guide portion 18 is formed to gradually protrude toward the downstream side of the swirling flow toward the inside of the container 1 with respect to an arc along the inner surface of the wall portion 10. In the present embodiment, the guide portion 18 is disposed in the vicinity of the first tangential direction guide portion 171. The guide 18 is formed to gradually protrude toward the inside of the container 1 as it approaches the introduction port 17.
Further, as shown in fig. 3, the container 1 is formed with a positioning portion 19 that positions the dust collecting device DC with respect to the apparatus main body. The positioning portion 19 is located at the side of the container 1. In the present embodiment, the positioning portion 19 is disposed on a side portion near one end of the container 1. In the present embodiment, the positioning portion 19 is located on the same side as the introduction port 17.
The container 1 is provided with a mounting portion 2. The mounting portion 2 constitutes the other end portion of the dust collecting device DC. The container 1 and the mounting portion 2 are attached to and detached from each other in the axial direction of the dust collecting device DC. The mounting portion 2 is a discharge portion for discharging air introduced into the container 1. The mounting portion 2 is formed in a cylindrical shape having a maximum diameter equal to or substantially equal to that of the container 1. The mounting portion 2 is formed in a cylindrical shape having a maximum diameter equal to or substantially equal to a maximum diameter of the first collecting portion 13 or the second collecting portion 14 of the container 1. The mounting portion 2 is disposed coaxially with the container 1 in a state of being mounted on the container 1.
The mounting portion 2 includes an exhaust portion 20. The exhaust portion 20 constitutes a part of the first separating portion 3. The gas exhaust portion 20 is located inside the container 1 in a state where the mounting portion 2 is mounted to the container 1. The exhaust unit 20 is formed in a cylindrical shape. The exhaust unit 20 includes a ventilation opening 201. The exhaust unit 20 exhausts the air in the first separating unit 3 to the second separating unit 4 through the ventilation opening 201. The plurality of ventilation openings 201 are formed in the circumferential direction of the exhaust unit 20. The space between adjacent ventilation openings 201 of the exhaust unit 20 is a rib 202. The rib portion 202 extends in the axial direction of the exhaust portion 20. The ventilation opening 201 may be covered with a filter 203. The filter 203 filters and separates a part of dust from the air passing through the ventilation opening 201. The filter 203 is not necessarily required, and the filter 203 may be replaced by forming the ventilation opening 201 into a fine pore shape.
Further, the exhaust unit 20 is disposed coaxially or substantially coaxially with respect to the container 1 in a state where the mounting unit 2 is mounted to the container 1. In the present embodiment, the exhaust unit 20 forms a swirling flow of the dust-containing air with the inner surface of the container 1 in a state where the mounting unit 2 is mounted to the container 1. The exhaust portion 20 is located on the center side of the swirling flow in a state where the mounting portion 2 is mounted to the container 1. Further, the exhaust portion 20 is at least partially located at a position facing the protruding portion 15 in a state where the mounting portion 2 is mounted to the container 1. That is, at least a part of the gas discharge portion 20 overlaps with the protrusion 15 in the axial direction of the container 1 in a state where the mounting portion 2 is mounted to the container 1. Further, both end portions of the vent portion 20 extend further in the axial direction than the protruding portion 15 in a state where the mounting portion 2 is mounted to the container 1.
The mounting portion 2 includes a conical portion 21. The conical portion 21 constitutes at least a part of the second separating portion 4. The conical portion 21 is formed in a cylindrical shape having a diameter gradually reduced from one end portion to the other end portion. The central axis of the conical portion 21 is parallel to the axial direction of the mounting portion 2, or is inclined with respect to the axial direction of the mounting portion 2. In the state where the mounting portion 2 is mounted to the container 1, one end of the conical portion 21 on the side with the larger radial dimension is located on the opposite side to the container 1, and the other end of the conical portion 21 on the side with the smaller radial dimension is located on the container 1 side. In the present embodiment, a plurality of conical portions 21 are provided. The plurality of conical portions 21 are arranged in an arc shape around the central axis a1 of the dust collecting device DC.
The conical portion 21 swirls the dust-containing air passing through the first separation portion 3 inside. That is, the mounting portion 2 includes a ventilation air passage portion 22 that communicates the exhaust portion 20 and the conical portion 21. The ventilation air passage 22 is an air passage connecting the first separator 3 and the second separator 4. The ventilation air passage 22 is connected to an end of the exhaust unit 20. The ventilation air passage 22 communicates with the ventilation opening 201. The ventilation air passage 22 is disposed between the plurality of conical portions 21. In the present embodiment, the ventilation air passage 22 is formed along the central axis of the mounting portion 2. The ventilation air passage 22 preferably has a smaller air passage cross-sectional area on the downstream side than on the upstream side. In the present embodiment, the ventilation air passage 22 has a portion whose air passage cross-sectional area gradually decreases from the upstream side toward the downstream side.
The conical portion 21 has an air inlet 211 formed in a side portion of one end portion on a radially larger side thereof, for introducing the dust-containing air having passed through the first separating portion 3. The air inlet 211 communicates with the ventilation duct 22. The air inlet 211 is open in a direction intersecting the axial direction of the conical portion 21. The air inlet 211 is formed to introduce the dust-containing air along a tangential direction of the conical portion 21. The conical portion 21 has an air outlet for discharging air from which dust has been separated, at one end on the side having a larger radial dimension. The air discharge port opens along the central axis of the conical portion 21. Further, the other end portion of each conical portion 21 on the smaller radial dimension side serves as a dust discharge port 213 through which the dust separated by the second separating portion 4 is discharged. The dust discharge port 213 is open in communication with the outside of the mounting portion 2. In a state where mounting portion 2 is mounted to container 1, dust discharge port 213 communicates with second collecting portion 14 of container 1.
The mounting part 2 includes an air outlet 23 for discharging the air passing through the second separating part 4 to the outside of the dust collecting device DC. The exhaust port 23 communicates with the conical portion 21. In the present embodiment, the air outlet 23 communicates with the air outlet of the conical portion 21. The exhaust port 23 is formed at an end opposite to the container 1 at the mounting portion 2. A filter body 231 through which air discharged from the second separating part 4 passes may be disposed at the air outlet 23.
In the present embodiment, the mounting portion 2 includes an enlarged portion 24. The enlarged portion 24 constitutes a part of the first separated portion 3. The enlarged portion 24 has a function of compressing the dust separated by the first separating portion 3. Enlargement 24 is located inside container 1 in the state where attachment portion 2 is attached to container 1. The enlarged portion 24 is disposed so as to be connected to an end portion of the exhaust portion 20 opposite to the ventilation air passage portion 22. The expansion portion 24 is formed in a cylindrical shape having an outer diameter larger than that of the exhaust portion 20. The expansion portion 24 is disposed coaxially with the exhaust portion 20. In other words, enlargement portion 24 is disposed coaxially or substantially coaxially with respect to container 1. In addition, enlarged portion 24 is not a necessary structure.
In the present embodiment, the mounting portion 2 includes the supported portion 25. Supported portion 25 is disposed around an end of exhaust portion 20 opposite to enlarged portion 24. The supported portion 25 is located outside the exhaust portion 20. The supported portion 25 is formed in a cylindrical shape having a diameter gradually increased from one end portion to the other end portion. The other end portion side of the supported portion 25, which is expanded in diameter, abuts against the protruding portion 15 in a state where the mounting portion 2 is mounted to the container 1, and regulates the position of the mounting portion 2 in the axial direction with respect to the container 1. The supported portion 25 is a partition portion that partitions the first collecting portion 13 and the second collecting portion 14 in a state where the mounting portion 2 is mounted to the container 1. The sealing body 251 can be attached to the other end portion of the supported portion 25, which is expanded in diameter. The sealing body 251 is pressed against the protruding portion 15 in a state where the mounting portion 2 is mounted on the container 1.
The supported portion 25 is located at a position facing the other end portion of the conical portion 21 on the side having a smaller radial dimension. The supported portion 25 is provided with a dust guide portion 252 for guiding the dust discharged from the dust discharge port 213 to the second collecting unit 14. The dust guide 252 is inclined as the supported portion 25 is expanded in diameter. That is, the dust guide 252 is inclined from the dust outlet 213 side toward the second collecting unit 14 side. The dust guide 252 is inclined in a direction intersecting the second inclined surface 152 of the protrusion 15 of the container 1. The supported portion 25 is not necessarily configured.
In the present embodiment, the mounting portion 2 includes a locking portion 26 for locking the dust collector DC to the device body. The locking portion 26 is located outside the mounting portion 2. The locking of the locking portion 26 to the apparatus main body can be released by the operation of the user. The locking part 26 is positioned on the side opposite to the introduction port 17 at the dust collecting device DC in the state where the mounting part 2 is mounted on the container 1. The locking part 26 is located at the opposite corner of the positioning part 19 at the dust collecting device DC. The locking part 26 may be provided in the device body.
The first separating portion 3 is formed by at least the container 1 and the air discharging portion 20 of the mounting portion 2 in a state where the mounting portion 2 is mounted to the container 1. The first separating part 3 centrifugally separates coarse dust, which is large dust, from the dust-containing air introduced into the container 1 from the inlet 17 by swirling the dust-containing air around the exhaust part 20 along the inner surface of the container 1.
The second separated portion 4 is formed by a conical portion 21 inside the mounting portion 2. The second separating part 4 causes the dust-containing air having passed through the first separating part 3 to swirl along the inner surface of the conical part 21, thereby centrifugally separating fine dust or fine dust, which is smaller dust not separated by the first separating part 3.
As shown in fig. 8, the dust collector DC of the present embodiment is used for an electric appliance, preferably, an electric vacuum cleaner VC. In the present embodiment, a cordless electric cleaner of a stick type (スティック type) is exemplified as the electric cleaner VC. Hereinafter, to clarify the description, in a state where the user holds the electric vacuum cleaner VC, an end portion on a far side from the user is referred to as one end portion, and an end portion on a near side from the user is referred to as the other end portion. The stick type vacuum cleaner VC is formed to be elongated from one end portion to the other end portion. Hereinafter, the both end directions or the longitudinal direction are referred to as a first direction. In addition, the width direction or both side directions orthogonal to the first direction is set as a second direction. Further, a direction orthogonal to the first direction and the second direction is set as a third direction. In fig. 8 and the like, one direction or one end side of the first direction is indicated by an arrow D1a, and the other direction or the other end side of the first direction is indicated by an arrow D1 b. One direction of the second direction is indicated by an arrow D2a, and the other direction of the second direction is indicated by an arrow D2 b. One direction of the third direction is indicated by an arrow D3a, and the other direction is indicated by an arrow D3 b.
As shown in fig. 5, the dust collecting device DC is attached to the cleaner body 5, which is the main body of the electric vacuum cleaner VC, in a state where the central axis a1 is along the first direction, the end on the container 1 side is set to one direction side of the first direction, and the end on the attachment portion 2 side is set to the other direction side of the first direction. In this state, the dust collector DC is disposed such that the inlet 17 is on one side in the third direction and the locking part 26 is on the other side in the third direction.
The electric vacuum cleaner VC includes a cleaner main body 5 as an apparatus main body. The cleaner body 5 includes a suction portion 50. The suction unit 50 is a portion to which an air passage body such as an extension pipe or a suction port body can be connected. The suction part 50 is located at one end of the cleaner body 5. The suction portion 50 is formed in a cylindrical shape. The suction portion 50 is inclined in one direction of the first direction and in the other direction of the third direction. The suction unit 50 is provided with a receiving unit 501 for positioning the dust collector DC. The positioning portion 19 of the dust collecting device DC is inserted into the receiving portion 501. The receiving portion 501 is formed on the other side of the suction portion 50 in the third direction.
Further, a main body suction port 502 is formed at one end or a front end of the suction portion 50. The main body suction port 502 opens in a direction inclined in one direction of the first direction toward the other direction of the third direction. The central axis a2 of the main body suction opening 502 intersects the central axis a1 of the dust collecting device DC at a position on one end side of the dust collecting device DC, that is, one direction side of the first direction of the dust collecting device DC, in a state where the dust collecting device DC is attached to the cleaner body 5. Further, inside suction unit 50, a suction air passage 503 is formed in communication with main body suction port 502. An upstream end of suction air passage 503 is a main body suction port 502. The downstream end of suction air passage 503 is a connection opening 504. The connection opening 504 is connected to the inlet 17 of the dust collector DC. As shown in fig. 5 and 6, the inlet 17 of the dust collector DC is positioned between the central axis a1 of the dust collector DC and the central axis a2 of the main body inlet 502 in the state where the dust collector DC is attached to the cleaner body 5. As shown in fig. 7, the inlet 17 of the dust collector DC is located at the center of the second direction of the vacuum cleaner VC.
As shown in fig. 5, the cleaner body 5 includes a case 52. The case 52 is located at the other end of the cleaner body 5. The case 52 is formed along the first direction. The dust collecting device DC is installed on one direction side of the first direction of the case 52 and the other direction side of the third direction of the suction part 50. Further, the electric blower 6, the battery 7, and the control unit 8 are disposed in the case 52. A connection port 521 is formed at one end or a front end of the case 52. The connection port 521 opens in the first direction. The connection port 521 is connected to the exhaust port 23 of the dust collector DC. An air passage 522 is formed in the case 52 so as to communicate with the connection port 521. An upstream end of the air passage 522 is a connection port 521. The electric blower 6 is disposed in the air passage 522. The downstream end of the air passage 522 is a main body air outlet 523 shown in fig. 7. Further, as shown in fig. 5, the locking portion 26 of the dust collector DC can be engaged with and disengaged from the housing 52.
Further, the cleaner body 5 includes a grip 54 for cleaning operation. The grip 54 is formed to extend from the suction portion 50 to the case 52. In the present embodiment, one end side of the grip portion 54 is connected to the suction portion 50. The other end of the grip 54 is connected to the case 52. A setting unit 541 for setting the operation of the electric blower 6 and the like is disposed in the grip portion 54. The setting unit 541 transmits a signal corresponding to the setting to the control unit 8.
Next, the operation of embodiment 1 will be described.
As shown in fig. 3, the dust collecting device DC is assembled by mounting the mounting part 2 to the container 1. The mounting portion 2 is positioned with respect to the container 1 by supporting the end of the supported portion 25 to the protruding portion 15 of the container 1. In this state, the sealing body 251 at the end of the supported portion 25 is pressed against the protruding portion 15, and the inside of the container 1 is partitioned into the first collecting portion 13 and the second collecting portion 14. The air vent 20 of the mounting portion 2 is disposed coaxially with the container 1, facing the inlet 17 of the container 1. In addition, an air passage is formed in the dust collector DC from the inlet 17 to the first separator 3, the ventilation air passage 22, the second separator 4, and the exhaust port 23.
As shown in fig. 5, the user mounts the assembled dust collecting device DC to the cleaner body 5. When the dust collecting device DC is attached to the cleaner body 5, the positioning portion 19 of the dust collecting device DC is inserted into the receiving portion 501 of the cleaner body 5, and the dust collecting device DC is rotated with the positioning portion 19 and the receiving portion 501 as a fulcrum, and the locking portion 26 is locked to the case 52. Since the main body suction port 502 communicates with the dust collecting device DC and the dust collecting device DC communicates with the suction side of the electric blower 6, the electric vacuum cleaner VC forms an air passage from the main body suction port 502 to the dust collecting device DC, the electric blower 6, and the main body exhaust port 523 shown in fig. 7.
As shown in fig. 5, in the present embodiment, if the dust collector DC is attached to the cleaner body 5, the inlet 17 of the dust collector DC is connected to the connection opening 504 of the cleaner body 5, the suction side of the dust collector DC communicates with the suction air passage 503, the exhaust port 23 of the dust collector DC is connected to the connection port 521 of the cleaner body 5, and the exhaust side of the dust collector DC communicates with the air passage 522.
When the user operates the setting unit 541 by holding the grip 54, the control unit 8 operates the electric blower 6 in accordance with the operation of the setting unit 541. The negative pressure generated by the operation of the electric blower 6 acts through the main body suction port 502, and the dust-containing air is sucked from the surface to be cleaned into the dust collecting device DC.
The user sucks in dust on the surface to be cleaned through the main body suction port 502 or the air passage body connected to the main body suction port 502 while moving the electric vacuum cleaner VC forward and backward by the grip 54.
The dust-containing air sucked from the main body suction port 502 is introduced into the container 1 of the dust collector DC through the inlet port 17. At this time, as shown by the arrows in fig. 4, since the first tangential direction guide 171 and the second tangential direction guide 172 are disposed at the introduction port 17, the dust-containing air introduced from the introduction port 17 is guided in the tangential direction along the inner surface of the container 1 and swirls along the inner surface of the container 1. As shown in fig. 3, the swirling flow is rectified toward the first collecting portion 13 by the first inclined surface 151 of the protruding portion 15 facing the introduction port 17. Coarse dust in the dust-containing air is centrifugally separated from the air by centrifugal force generated by the swirling dust, and is collected in the first collecting portion 13 along the inner surface of the container 1.
The swirling flow of the first separator 3 passes through the exhaust part 20 located at the center thereof to the ventilation air passage 22. Since the ventilation opening 201 of the exhaust unit 20 is covered with the filter 203, part of the dust is filtered and separated by the filter 203. The dust adhering to the outer surface of the exhaust unit 20 such as the filter 203 is peeled off by the swirling flow and collected in the first collection unit 13. The dust collected in first collecting unit 13 is pushed into and compressed by the airflow toward inside of enlarged portion 24.
The dust-containing air having passed through ventilation duct 22 is introduced into second separator 4. The dust-containing air flowing into the conical portion 21 constituting the second separating portion 4 is guided by the air inlet 211 along the tangential direction of the inner surface of the conical portion 21 and swirls along the inner surface of the conical portion 21. Fine dust or fine dust remaining in the dust-containing air is separated from the air by centrifugal force generated by the swirling, discharged from the dust outlet 213 of the conical portion 21, and collected in the second collecting portion 14.
The swirling flow of the second separating portion 4 is discharged from the air outlet port located at the center portion of the conical portion 21, and is discharged from the dust collecting device DC via the air outlet port 23. At this time, since the air passes through the filter body 231, even if the dust is slightly remained, the dust is filtered and separated by the filter body 231.
As shown in fig. 5, the air separated and captured by the dust collector DC is sucked by the electric blower 6 and discharged as exhaust air from the main body exhaust port 523 shown in fig. 7.
When the cleaning is finished, if the user operates the setting unit 541, the control unit 8 stops the electric blower 6.
The dust collected in the dust collector DC can be discarded from the dust collector DC to a trash box or the like. In this case, the user first removes the dust collection device DC from the cleaner body 5. In the present embodiment, the user operates the locking portion 26 to release the locking of the dust collecting device DC to the cleaner body 5, and rotates the dust collecting device DC about the positioning portion 19 and the receiving portion 501 as a fulcrum, thereby detaching the dust collecting device DC from the cleaner body 5.
The dust collecting device DC removed from the cleaner body 5 is further removed from the container 1 by the mounting portion 2. As shown in fig. 2, the user places a finger F along the concave portion 16 of the container 1, turns the container 1 upside down above a trash box or the like, and discards the dust from the dust discarding port 12.
At this time, according to embodiment 1, since the projecting portion 15 projecting into the container 1 is gradually reduced inward from the first collecting portion 13 side toward the second collecting portion 14 side, the dust collected in the first collecting portion 13 is guided to the inside of the container 1 along the projecting portion 15 as shown by the arrow in fig. 2 when moving to the dust discarding port 12, and the dust is hard to scatter.
Further, since the recess 16 is formed in the outer surface of the position corresponding to the protrusion 15 of the container 1, the dust collecting device DC and the container 1 are easily held by placing the finger F in the recess 16, and when discarding dust, the dust is easily discarded since the container 1 is reliably caught by the finger F of the user at the position of the recess 16 to prevent slipping even if the container 1 is turned upside down in the state where the finger F is placed in the recess 16.
Since at least a part of the introduction port 17 is located at a position facing the protrusion 15, the inclination of the protrusion 15, in the present embodiment, the inclination of the first inclined surface 151, serves as a guide portion for rectifying the dust-containing air introduced into the container 1 from the introduction port 17 toward the first collecting portion 13. Therefore, the air speed for centrifugally separating the dust in the first separating portion 3 is not easily reduced, and the separation efficiency is good.
Since at least a part of the exhaust part 20 that exhausts air from the first separating part 3 to the second separating part 4 is positioned to face the protrusion 15, the wind speed on the center side of the swirling flow of the first separating part 3 having a slower flow speed than the outside can be maintained at a high speed, and dust is less likely to be caught on the outer surface of the exhaust part 20. In particular, when the filter 203 is provided on the outer surface of the exhaust unit 20, dust is less likely to be caught by the filter 203.
Since the dust-containing air introduced from the inlet 17 and swirled along the inner surface is guided to the inside of the container 1 by the guide 18, it is possible to prevent the dust introduced from the inlet 17 from being scattered as it is from the inlet 17 by a centrifugal force when swirling to the inlet 17.
Further, since the maximum diameters of the outer surfaces of first collecting member 13 and second collecting member 14 of container 1 are set to be equal to each other with projection 15 interposed therebetween, the dust collecting capacity of first collecting member 13 can be increased without increasing the maximum diameter as a whole, and the size of dust collecting device DC can be expected to be reduced as compared with a configuration in which the maximum diameter of the outer surface of second collecting member 14 is increased as compared with the maximum diameter of the outer surface of first collecting member 13.
Further, in a state where the dust collector DC is attached to the cleaner body 5, the central axis a1 of the dust collector DC intersects the central axis a2 of the body suction port 502, and the inlet port 17 is positioned between the central axes a1 and a2, so that the air passage can be shortened, and pressure loss can be suppressed. Further, since the introduction port 17 does not protrude in the second direction in a state where the dust collection device DC is attached to the cleaner body 5, the electric vacuum cleaner VC can be formed slim.
By providing the dust collecting device DC, the vacuum cleaner VC can be provided which is easy to discard dust and has excellent separation efficiency.
(embodiment 2)
Next, embodiment 2 will be described with reference to fig. 9. The same configurations and actions as those of embodiment 1 are assigned the same reference numerals, and descriptions thereof are omitted.
The projecting portion 15 of the container 1 is gradually reduced in an arc shape from the first collecting portion 13 side toward the second collecting portion 14 side and projects inward. That is, the protrusion 15 of the present embodiment is a tapered portion that changes such that the inclination angle of the first inclined surface 151 gradually increases.
Even if the projecting portion 15 is configured to gradually decrease in an arc shape from the first collecting portion 13 side toward the second collecting portion 14 side toward the inside, the dust collected in the first collecting portion 13 is guided to the inside of the container 1 along the projecting portion 15 when moving to the dust discarding port 12, and is not easily scattered, as in embodiment 1.
In the embodiments, the dust collecting device DC is not limited to the use in a stick-type cordless electric vacuum cleaner, but may be used in a floor-traveling type electric vacuum cleaner, a robot type electric vacuum cleaner, or the like. The dust collector DC is not limited to use in an electric vacuum cleaner, and may be used in other electric devices such as a base device for transferring dust captured in the electric vacuum cleaner.
Several embodiments of the present invention have been described, but these embodiments are presented as examples, and the scope of the present invention is not limited to these embodiments. These new embodiments may be implemented in other various forms, and various omissions, substitutions, and changes may be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.
Claims (8)
1. A dust collecting device is characterized in that,
the disclosed device is provided with:
a first separating section for separating dust from air containing dust;
a second separating part for separating the dust which is not separated by the first separating part; and
a container for collecting the dust separated by the first separating part and the second separating part;
the container comprises:
a first collecting part for collecting the dust separated by the first separating part;
a second collecting part for collecting the dust separated by the second separating part; and
and a protrusion portion which gradually decreases inward from the first collecting portion toward the second collecting portion and protrudes.
2. The dust collecting device according to claim 1,
the container has a recess on an outer surface at a position corresponding to the protrusion.
3. The dust collecting device according to claim 1 or 2,
the container has an inlet for introducing air containing dust;
the first separating part is a centrifugal separating part for centrifugally separating dust by swirling the dust-containing air introduced into the container from the inlet along the inner surface of the container;
at least a part of the introduction port is located opposite to the protrusion.
4. The dust collecting device according to claim 3,
the container has a guide portion for guiding the dust-containing air introduced from the inlet and swirled along an inner surface to an inside of the container.
5. The dust collecting device according to claim 3 or 4,
the dust collecting device is arranged on the electric equipment with a main body suction inlet communicated with the introducing port, and the central axis of the dust collecting device is crossed with the central axis of the main body suction inlet;
the introduction port is located between the center axes.
6. The dust collecting device according to any one of claims 1 to 5,
the first separation part is provided with an exhaust part which is positioned at the inner side of the container and exhausts air to the second separation part;
at least a part of the exhaust part is located opposite to the protruding part.
7. The dust collecting device according to any one of claims 1 to 6,
the maximum diameters of the outer surfaces of the first collecting section and the second collecting section of the container are set to be equal to each other with the protruding section therebetween.
8. An electric dust collector is characterized in that,
a dust collecting device according to any one of claims 1 to 7.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019101209A JP7190394B2 (en) | 2019-05-30 | 2019-05-30 | Dust collector and vacuum cleaner |
| JP2019-101209 | 2019-05-30 |
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| Publication Number | Publication Date |
|---|---|
| CN112006606A true CN112006606A (en) | 2020-12-01 |
| CN112006606B CN112006606B (en) | 2022-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010461294.3A Active CN112006606B (en) | 2019-05-30 | 2020-05-27 | Dust collecting device and electric dust collector |
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| Country | Link |
|---|---|
| JP (1) | JP7190394B2 (en) |
| CN (1) | CN112006606B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP7190394B2 (en) | 2022-12-15 |
| CN112006606B (en) | 2022-03-18 |
| JP2020192243A (en) | 2020-12-03 |
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