JP6360543B2 - Electric vacuum cleaner - Google Patents

Description

  The present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner provided with a dust collection chamber that can be attached to and detached from a vacuum cleaner body.

  The current general electric vacuum cleaner has a vacuum cleaner body equipped with a dust collector, a floor suction body for sucking dust on the floor, and an extension pipe and a suction hose between the vacuum cleaner body and the floor suction body. It is of a structure called floor movement type connected by.

  The vacuum cleaner body of such a vacuum cleaner includes a dust collector and an electric blower inside, and has a structure that can be freely moved via wheels. Here, as an example, the dust collector is a cyclone system.

  The cyclone type dust collector has a structure in which air containing dust sucked from the suction port is separated by centrifugal separation by the cyclone separator, and the separated dust is accumulated in the dust collection chamber. In the specification, the cyclone separator and the dust collection chamber are collectively referred to as a dust collector.

  And in order to discharge | emit the accumulated dust, the method of isolate | separating a dust collector from a cleaner body and discharging from the lower part of a dust collection chamber was common. As such a cyclone type electric vacuum cleaner, JP 2011-177595 A (Patent Document 1), JP 2011-110234 A (Patent Document 2), and JP 2010-579789 A (Patent Document 3). As a method for discharging dust in the dust collection chamber, the lower bottom part of the dust collection chamber is configured with an openable lid, and the lid is opened to open the dust collection chamber. Dust accumulated on the surface is discarded.

JP 2011-177595 A JP 2011-110234 A JP 2010-579989 A

  By the way, recently, there has been a demand for downsizing or weight reduction (hereinafter collectively referred to as downsizing) of the main body of the vacuum cleaner, but when trying to downsize the cyclone type vacuum cleaner, downsizing of the dust collector is required. It is a necessary condition. On the other hand, there is also a demand to increase the amount of dust that can accumulate in the dust collection chamber to reduce the dust disposal cycle, and therefore, it is necessary to meet the demand for increasing the volume of the dust collection chamber.

  However, in a dust collector that employs a cyclone system, a cyclone separator has a substantially cylindrical separator in part due to the principle that the cyclone separator separates air and dust by centrifugation.

  If the cyclone separation unit and the dust collection chamber are designed to have a smaller diameter in order to reduce the size of the cyclone type dust collector, the area in the radial direction (substantially circular) of at least the lower part of the substantially cylindrical separation unit is reduced. Get smaller.

  For this reason, in the case where dust accumulated as disclosed in Patent Documents 1 to 3 is discharged by opening the lid at the lower part of the separation unit, the behavior of the fibrous dust compressed during suction expands its volume. As a result, there is a phenomenon that dust is trapped on the inner wall or narrow path portion of the dust collection chamber or cyclone separation section having a reduced diameter, which makes it difficult to discharge and discard the dust.

  In addition, when the opening area of the cyclone separation part opened and closed by the lid is reduced, in order to increase the dust collection volume, the axial length of the cyclone separation part and the dust collection chamber is lengthened to collect dust. A method of increasing the amount is conceivable.

  However, if the axial length of the cyclone separation part or dust collection chamber is increased, the dust collection chamber or cyclone separation part having a reduced diameter is lengthened, which further promotes the phenomenon of being caught on the inner wall or narrow path part. There was a problem that it became difficult to discharge and dispose. For this reason, the length in the axial direction in which dust can be discharged is limited in actual use, resulting in a problem that the dust collection volume cannot be increased.

  An object of the present invention is to provide a novel electric vacuum cleaner having a dust collection chamber that secures a predetermined dust collection volume and can easily discharge dust.

A feature of the present invention includes a substantially cylindrical cyclone separator, and a dust collecting chamber that is disposed adjacent to the lower side of the cyclone separator and is configured integrally with the cyclone separator, and is provided at the bottom of the dust collector. Provided with an opening for discharging dust accumulated in the dust collecting chamber and an opening / closing lid for opening / closing the opening, and a mounting hinge mechanism for attaching the opening / closing lid in the vicinity of the opening in the dust collecting chamber. A part of the side surface of the dust chamber and a bottom surface are provided .

  According to the present invention, since a part or all of the side surface portion of the dust collection chamber can be an opening, an opening area larger than the opening area determined by the diameter of the cyclone separation chamber and the dust collection chamber can be secured. There is an effect that dust can be easily discharged.

  Furthermore, since the opening area of the opening for discharging dust can be increased even if the dust collector is downsized, there is an effect that the dust collection volume of the dust collection chamber can be increased.

It is an external appearance perspective view of the vacuum cleaner carrying the dust collector to which this invention is applied. It is a longitudinal cross-sectional view of the cleaner body which mounts the dust collector which becomes one Example of this invention. It is the external appearance perspective view which removed the dust collection chamber of the dust collector which becomes one Example of this invention from the cleaner body. It is an external appearance perspective view when the open / close lid of the dust collection chamber shown in FIG. 3 is opened. It is a longitudinal cross-sectional view of the dust collector shown in FIG. 3 which becomes one Example of this invention. It is the external appearance perspective view which removed the dust collection chamber of the dust collector which becomes the 1st other Example of this invention from the cleaner body. It is an external appearance perspective view of the dust collector shown in FIG. It is the external appearance perspective view which removed the dust collection chamber of the dust collector which becomes the 2nd other Example of this invention from the cleaner body. It is an external appearance perspective view of the dust collector shown in FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings, but a plurality of embodiments are proposed in the present invention. Therefore, although the detailed description is given for each embodiment, the present invention is not limited to these embodiments and includes various modifications and applications within the basic concept of the present invention.

  Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is an external perspective view of an electric vacuum cleaner to which the present invention is applied. In FIG. 1, reference numeral 101 is a main body of the vacuum cleaner, and a cyclone type dust collecting device 102 is mounted on the main body 101 of the vacuum cleaner. The vacuum cleaner main body 101 is connected to the hand handle 104 via the suction hose 103, and the hand handle 104 is connected to the mouthpiece 107 via the extension pipe 106.

  In addition, the hand handle 104 is provided with a hand operating unit 105 that controls driving of an electric blower built in the cleaner body 101 and an electric rotating brush provided in the suction body 107.

  FIG. 2 shows a cross-sectional view of the vacuum cleaner main body 101 at a substantially central position. The vacuum cleaner main body 101 has a hose attachment port 201 formed in a housing 204 made of a material such as plastic and sucked into the housing. An electric blower 202 that generates force is disposed, and a high-density filter 203 that cleans exhaust gas is disposed.

  A dust collector 102 is placed on the front upper portion of the vacuum cleaner body 101 in a state where the dust collector 102 is inclined forward and downward. One of the dust collectors 102 is fluidly connected to the hose attachment port 201 and the other is an electric blower 202. Fluidly connected to the

  Here, the dust collector 102 is generally composed of a cyclone separation unit 501 and a dust collection chamber 502, the cyclone separation unit 501 is fluidly connected to the hose attachment port 201, and the dust collection chamber 502 is fluidly connected to the electric blower 202. Configured to be connected. Although the cyclone separation unit 501 and the dust collection chamber 502 are described as examples configured so as not to be integrally separated in the present embodiment, they may be configured to be detachable from each other. .

  That is, the vacuum cleaner is configured by detachably configuring the cyclone separation unit 501 and the dust collection chamber 502 with a hook mechanism or a screw mechanism (for example, a configuration in which the cyclone separation unit 501 and the dust collection chamber 502 are screwed together). The cyclone separating unit 501 and the dust collecting chamber 502 may be removed from the main body 101 while being integrated, or only the dust collecting chamber 502 may be detached from the cyclone separating unit 501 and separated. In particular, if only the dust collection chamber 502 is removed, dust can be discarded from the dust collection chamber without placing a burden on the user when throwing away the garbage.

  In the following description, an embodiment in which the cyclone separation unit 501 and the dust collection chamber 502 are integrally formed will be described. However, even if the separation system is used, only the cyclone separation unit 501 and the dust collection chamber 502 are separated. The configuration is similar.

  And the air containing the dust sucked from the suction body 107 flows through the dust collecting chamber through the hose attachment port 201 as shown by the arrow in FIG. 2, and the plastic or the like passes through the electric blower 202 and the high-density filter 203. It is discharged to the outside of the housing 204 made in the above. Although not shown, a cord reel for supplying electric power is provided inside the casing 204 that forms the outline of the main body 101 of the vacuum cleaner.

  When the power button provided on the hand operation unit 105 is turned on by the user, the electric blower 202 is activated to generate a suction force. The air sucked from the suction body 107 and the dust sucked together with the air are The extension pipe 106, the suction hose 103, and the cleaner body 101 are guided in this order. The air flowing into the cleaner body 101 from the hose attachment port 201 and the dust sucked together with the air are separated into the dust and the air by the cyclone separation unit 501 and the dust collection chamber 502 constituting the dust collecting device 102, and the dust is separated. The air that has passed through the electric blower 202 passes through the high-density filter 203, further becomes clean air in which fine dust is collected, and is exhausted outside the cleaner body 101.

  FIG. 3 shows an appearance in a state where the dust collector 102 is removed from the cleaner body 101, and FIG. 4 shows an appearance in a state where the dust discharge opening / closing lid 302 is opened.

  3 and FIG. 4, when the dust collector 102 is removed from the cleaner body 101, or the dust collector 102 is disposed on the upper surface portion 305 (the upper surface when the dust collector 102 is placed on the cleaner body). A handle portion 301 used for carrying the device and a button 303 for releasing a locking clamp for locking the opening / closing lid (lid body portion) 302 shown below in a closed state are provided. In addition, an air inlet 304 containing dust is provided on a lower surface portion (surface on the lower side when placed on the cleaner body) 306 of the dust collector 102. The inflow port 304 is connected to the hose attachment port 201.

  An opening 308 for discharging dust is provided in a part of the cylindrical side surface portion 307 existing between the upper surface portion 305 and the lower surface portion 306 of the dust collector 102, and this opening portion 308 is opened and closed. The lid 302 is hermetically sealed and opened. The side surface portion 307 is formed so as to be orthogonal to the surfaces of the upper surface portion 305 and the lower surface portion 306, and the end surface 302A on the lower surface portion 306 side of the opening / closing lid 302 is rotatably supported by the hinge mechanism 309. The opening / closing lid 302 is opened and closed with the hinge mechanism 309 as a fulcrum.

  As described above, when the dust collector 102 is tilted when dust is discharged from the dust collector 102 by rotatably supporting the open / close lid 302 on the end surface 302A on the lower surface portion 306 side, the open / close lid 302 is moved in the direction of gravity. Because it hangs down, dust can be easily discharged.

  In addition to the present configuration, the hinge mechanism 309 can be provided on the end surface 302B of the upper surface 305 side of the opening / closing lid 302 or the side end surface 302C of the opening / closing lid 302 as a rotation fulcrum of the opening / closing lid 302. In this case, a maintenance mechanism for maintaining the open / close lid 302 in an open state may be provided as necessary. Further, the opening / closing lid 302 may be simply attached / detached without providing the hinge mechanism 309 on the opening / closing lid 392. In this case, a fixing mechanism or a locking mechanism that prevents the opening / closing lid 302 from dropping off during cleaning is provided. It is good to provide.

  The shape of the opening / closing lid 302 is formed in an arc shape along the cylindrical shape of the dust collector 102. This is because the hinge mechanism 309 is provided in the cyclone separator 501. In other words, since the cyclone separating portion 501 has a cylindrical shape due to its function, the shape of the opening / closing lid 302 in this portion is formed in an arc shape, and from the viewpoint of manufacturing, the entire shape of the opening / closing lid 302 is changed to this arc shape. Are combined. Thereby, the opening / closing lid 302 can be obtained without using a complicated mold. In addition, a large opening 308 can be formed in the side surface portion 307 by providing the hinge mechanism 309 in the cyclone separating portion 501.

  If the hinge mechanism 309 is shifted from the cyclone separating portion 501, the shape of the dust collecting chamber 502 can be formed in a rectangular parallelepiped shape to form a flat plate-shaped opening / closing lid, and the basic concept of the present invention is this configuration. Is included.

  The area of the opening 308 in the circumferential direction formed in the side surface portion 307 is determined by the dust collection capacity. When the length of the dust collection chamber 502 is constant, the dust collection When the capacity is increased, the width in the circumferential direction of the opening 308 is reduced, and dust may not be discharged smoothly. Therefore, the optimum area of the opening can be determined. This will be described in detail in the description of FIG. In this embodiment, the opening 308 is formed up to the maximum diameter portion (= diameter) of the dust collecting chamber in order to increase the opening area. Here, when the circumferential width of the opening 308 is increased, the dust collection capacity is limited. As will be described later, the dust storage chamber constituting the dust collection chamber (reference number 512 in FIG. 5). It is possible to enlarge the dust collection capacity by enlarging the filter to the filter housing chamber 310 described later.

  As described above, if the shape of the dust collection chamber 502 is formed in a rectangular parallelepiped shape to form a flat plate-shaped opening / closing lid, the area of the opening becomes constant, which is advantageous for determining the dust collection capacity.

  Further, a rectangular parallelepiped filter storage 310 is formed on the side opposite to the opening 308 and the opening / closing lid 302, and an air outflow opening connected to the electric blower 202 is provided in the filter storage 310. The configuration of the filter storage unit 310 will be described in detail in the description of FIG.

  Next, a specific configuration of the dust collector 102 will be described in detail with reference to FIG. 5. FIG. 5 is a cross-sectional view of the cyclone dust collector 102 taken along a substantially central portion.

  In FIG. 5, reference numeral 501 is a cyclone separation unit that separates dust and air by centrifugal force generated by swirling intake air, and a dust collection chamber 502 for collecting separated dust is disposed adjacent to the upper side. Yes. The cyclone separation unit 501 and the dust collection chamber 502 are integrally configured so as not to be separated, but may be configured to be separable as described above.

  A cylindrical dust separation inner cylinder 514 attached to a separation wall 513 forming the cyclone separation chamber 503 is provided near the center of the cyclone separation chamber 503 constituting the cyclone separation unit 501, and this dust separation is performed. A plurality of through holes 515 are provided on the cylindrical side surface of the inner cylinder 514.

  The dust collection chamber 502 includes two chambers. One is a dust storage portion 512 into which air containing a large amount of dust flows due to a centrifugal separation action, and the other is an intake air in which dust is separated by a centrifugal separation action. This is a filter housing part 310 into which a part (air with less dust after centrifugation) flows.

  The dust container 512 and the filter container 310 are separated from each other by a separation wall 516, and the separation wall 516 is provided with a large number of openings. A back filter 504 is disposed on the surface of the separation wall 516 on the dust storage unit 512 side. Therefore, the dust container 512 is connected to the filter container 310 through the back filter 504 and the opening of the separation wall 516.

  The filter storage unit 310 is connected to the dust separation inner cylinder 514, and dust and air that could not be separated by the cyclone separation unit 501 flow in and the rear filter 505 collects the dust.

  The rear filter 505 is formed of a filter member that is folded into a pleat shape (folded fold) in a frame body having a substantially square cross-sectional shape in order to increase the ventilation area. The fold line direction of the fold fold of the filter member is preferably the vertical direction (gravity acting direction). This is because, when a dust removing mechanism for impacting the rear filter 505 is provided on the downstream side of the rear filter 505, the folding direction is provided in a substantially vertical direction, so that the fine dust attached to the rear filter 505 falls downward. This is because it is easy to remove. The fold line direction of the folds may be arranged in an oblique direction.

  The cyclone separation chamber 503 is connected to the dust container 512 via the communication passage forming portion 518, and dust sucked when the operation of the vacuum cleaner is stopped in the communication passage forming portion 518. A check valve 510 is provided to prevent backflow.

  An air flow deflecting unit 519 is disposed in the dust storage unit 512 facing the communication path forming unit 518, and a rear filter 504 is disposed in the air flow deflecting unit 519 from the air flow deflecting unit 518. It works so as to change the direction toward the separating wall 516 side.

  Further, since the inner peripheral side of the opening / closing lid 302 has an arcuate surface, the flow of air including dust flowing out from the communication path forming unit 518 is directed toward the dust storage unit 512 along the arcuate surface. It is converted to flow. This arcuate surface is provided to rectify the air flow, and in addition to this, the cross section may be a trapezoidal or triangular shape. That is, it is only necessary that the air flow including the dust flowing out from the communication path forming portion 518 changes in a direction in which the cross section expands while reaching the dust storage portion 512 side.

  The opening / closing lid 302 extends in the same direction as the direction of airflow including dust flowing out from the communication path forming portion 518, and the opening 308 opens along this direction. That is, the opening direction of the opening 308 is orthogonal to the air flow direction.

  The communication path forming part 518 and the air flow deflecting part 519 are fixedly attached to the inner peripheral surface side of the opening / closing lid 302, and move together with the opening / closing lid 302 when the opening / closing lid 302 is opened. For this reason, the dust collection chamber 502 becomes a large open state and can easily discharge dust. In addition, since the communication path forming part 518 and the air flow deflecting part 519 can be attached to the opening / closing lid 302, it is possible to expect an effect that the positioning of both is easy.

  Reference numeral 511 represents the central axis of the substantially cylindrical shape of the cyclone separator 501, and reference numeral 509 represents dust accumulated in the dust container 512.

  As shown in FIGS. 3 and 4, the opening / closing lid 302 is attached to the side portion 307 of the cyclone separating portion 501 and the dust collecting chamber 502 so as to be openable and closable so as to straddle the cyclone separating portion 501 and the dust collecting chamber 502. Yes. A hinge mechanism 309 is provided on a side surface portion of the cyclone separating portion 501, and the opening / closing lid 302 is opened with the hinge mechanism 309 as a rotation center. A clamp engaging portion 312 is attached to the inner side of the end surface 302B of the opening / closing lid 302, and this clamp engaging portion 312 engages and disengages with the clamp 311 built in the upper surface portion 305 of the dust collector 102. When the button 303 is pressed, the clamp 311 is detached from the clamp engaging portion 12 and the opening / closing lid 302 is opened.

  The opening / closing lid 302 forms part of the dust container 512, and the dust container 512 is formed by closing the opening 308. A packing made of a material such as rubber is interposed between the opening / closing lid 302 and the opening 308, and is configured to keep secret so as not to weaken the negative pressure generated by the electric blower 202.

  Further, in this embodiment, the opening / closing lid 302 has an arc shape. However, with this configuration, the negative pressure inside the opening / closing lid 302 generated by the electric blower 202 and the atmospheric pressure outside the opening / closing lid 302 are reduced. It is strong against the force generated between the two. If a flat plate-shaped opening / closing lid is used, there is a risk that the vicinity of the center may be deformed inward, and accordingly, a design that increases the thickness of the opening / closing lid is required. Therefore, it is possible to avoid making the opening / closing lid 302 thicker than necessary.

  Although the description is mixed, a mesh member made of metal, nylon, polyester, or the like is pasted by covering or insert molding instead of the through hole 515 of the dust separation inner cylinder 514 or the opening of the separation wall 516. In this case, there is an effect that the formation of the through hole is facilitated.

  Moreover, you may make it comprise the metal (for example, stainless steel) containing or apply | coated the antibacterial metal (for example, silver) and the antibacterial substance (for example, silver) so that propagation of a microbe can be suppressed.

  In addition, if the entire or part of the opening / closing lid 302 is configured so that dust accumulated in the dust container 512 can be visually observed, for example, a transparent plastic material, the accumulated dust is easily visible from the front surface of the cleaner body. effective.

  In the above, the air containing dust sucked by the suction force generated by the electric blower 202 flows into the dust collector 102 of the cleaner main body 101 through the suction body 107, the extension pipe 106, and the hose 103.

  The air containing the dust flowing in flows in from the inlet 304 so as to flow along the inner peripheral surface of the cyclone separation chamber 503 of the cyclone separator 501, and turns inside the cyclone separator 501 as indicated by an arrow 506. Air and dust can be separated by the centrifugal separation action by this turning.

  Due to the centrifugal separation action, the air on the outer peripheral side of the cyclone separation chamber 503 contains a large amount of dust, and conversely, the air on the inner peripheral side flows with a small amount of dust. Then, air containing a lot of dust by centrifugation flows into the dust collection chamber 502 through the communication path 518 provided in the opening lid 302, and the air containing the dust that has flowed in is an arrow that is the first flow path. Only the dust flowing as shown in 507 is collected by the back filter 504 and sequentially deposited.

  On the other hand, the air from which the dust has been separated by the centrifugal separation action (the air having a small amount of dust after the centrifugal separation) has a plurality of penetrations provided in the dust separation inner cylinder 514 as indicated by an arrow 508 that is the second flow path. From the hole 515, it flows into the filter storage unit 310 through the inside of the dust separation inner cylinder 514. Since the air flow indicated by the arrow 508 does not pass through the dust container 512, the dust 509 accumulated in the dust container 512 does not pass through.

  For this reason, even if a large amount of dust accumulates in the dust container 512 and the air flow indicated by the arrow 507 is gradually blocked, the air from which the dust has been separated by the centrifugal separation action continues to the filter container 310. Since it can be made to continue inflow, the suction power of the whole vacuum cleaner can be maintained.

  On the other hand, the dust deposited on the back filter 504 in the dust container 512 is compressed by suction force and sequentially accumulated, and finally is accumulated up to the allowable collection amount of the dust container 512.

  Further, light dust that could not be separated by the centrifugal separation action of the cyclone separation unit 501 and fine dust that could not be collected by the back filter 504 were collected by the rear filter 505, and the air that passed through the rear filter 505 was collected by the electric blower 202. It will be sucked in.

  In the vacuum cleaner that performs the operation as described above, when the user discards the accumulated dust 509, the dust collector 102 is detached from the vacuum cleaner main body 101 with the handle portion 301 as shown in FIG. The accumulated dust 509 can be discharged by pushing to open the opening / closing lid 302. The opening / closing lid 302 is provided in a substantially parallel direction to the substantially cylindrical central axis 511 of the cyclone separating portion 501.

  Accordingly, in this embodiment, almost the entire dust container 512 shown in FIG. 5 (as viewed in the perspective direction of the dust container 512) is opened, and thus accumulated in the dust container 512. Dust can be discharged and discarded smoothly.

  The area of the opening 308 opened and closed by the opening / closing lid 302 is determined as follows.

  Here, in order to simplify the description, the shape of the dust collector 102 is considered as a cylinder having a diameter D and a height L. In this case, the bottom area S1 is S1 = π × D × D / 4, and the maximum opening area S2 on the side surface of the cylinder (area when the cylinder is cut parallel to the center line) is S2 = D × L. This area ratio is S2 / S1 = (L / D) × (4 / π).

  From this equation, if L> 0.8D, the opening area S1 of the side surface is larger than the bottom area S2 of the cylinder. In this embodiment, since L = 1.07D, the opening area S1 on the side surface is larger than the bottom area S2 of the cylinder.

  In the present embodiment, the above-described relationship is established for the opening area of the opening 308, but the opening area of the opening 308 can be appropriately determined as necessary. That is, when it is desired to secure a large amount of dust collection, the opening area of the opening 308 can be made smaller than the maximum. Even in this case, since the dust storage chamber 512 is open, dust can be scraped out by the operator's hand, and as described in the conventional example, it is caught on the inner wall of the dust collection chamber or the cyclone separation part or the narrow path portion. The phenomenon can be eliminated.

  As described above, according to the first embodiment, even if the dust collector is downsized, the area of the opening (opening / closing lid portion) for discharging the accumulated dust can be increased, and the dust can be easily discharged. There is an effect.

  Furthermore, even if the dust collector is reduced in size, the opening is sufficiently large compared to the depth of the dust container and the dust can be easily discharged. Therefore, the height L of the dust collecting chamber can be increased, and dust is accumulated. There is an effect that the dust collection volume of the dust collection chamber can be increased.

  Moreover, a large opening can be formed in the side part of the dust collection chamber by providing a hinge mechanism in the cyclone separation part.

  In addition to opening / closing lids of the openings provided on the side surfaces, opening of a part of the upper surface portion or the bottom surface portion makes it easier to discharge dust.

  In the form of this embodiment, the cyclone separator has a substantially cylindrical shape in order to improve the dust separation performance, but the dust collection chamber is in consideration of the ease of arrangement of the rear filter 505, etc. The shape is a combination of a substantially cylindrical shape and a rectangle.

  In addition, because of the centrifugal separation action, it has a first flow path through which the outer peripheral air containing a large amount of dust passes and a second flow path through which the inner peripheral air containing less dust passes, so that the dust is sucked in. Even if dust collects in the dust collecting housing, the suction force of the entire vacuum cleaner can be maintained.

  Further, since the accumulated dust is compressed by the suction force, there is an effect that more dust can be accumulated in the cyclone dust collecting chamber.

  Further, if the opening lid portion is made of a transparent member, the accumulated dust is easily visible from the front surface of the cleaner body.

  Next, a second embodiment of the present invention will be described in detail with reference to the drawings. Since the cleaner body has basically the same configuration as that of the first embodiment, a dust collector will be described below.

  FIG. 6 is a cross-sectional view of a cyclone type dust collecting apparatus 601 according to the second embodiment of the present invention, which is cut at a substantially central position.

  In FIG. 6, a dust collector 601 is composed of a cyclone separator 602 that separates dust and air by centrifugal force generated by swirling air containing dust, and a dust collection chamber 603 that stores the separated dust.

  As shown in the figure, a dust collection chamber 603 for collecting separated dust is disposed adjacent to the lower side of the cyclone separation unit 602. The cyclone separating portion 602 and the dust collecting chamber 603 are integrally configured so as not to be separated. In this case, since the dust collection chamber 603 is below the cyclone separation unit 602, the cyclone separation unit 602 and the dust collection chamber 603 are integrally handled when being removed.

  Near the center of the cyclone separation chamber 617 constituting the cyclone separation section 602, a cylindrical dust separation inner cylinder 604 attached to a separation wall 618 forming the cyclone separation chamber 617 is provided, and this dust separation is performed. A plurality of through holes 604 a are provided on the cylindrical side surface of the inner cylinder 604.

  The dust collecting chamber 603 is formed with a dust containing portion 616 into which dust and air separated by the cyclone separating portion 602 flow. The dust containing portion 616 and the cyclone separating chamber 617 are separated from each other by the separation wall 605. The separation wall 605 is provided with a number of openings. A back filter is disposed on the surface of the separation wall 605 on the dust storage unit 616 side.

  Air containing dust sucked from the hose attachment port 201 flows into the cyclone separation chamber 617 from the inlet 607, and the air containing dust flows through the backflow prevention valve 613 to the dust container 616, and passes through the back filter. And flows to the filter storage portion 619 through the inside of the dust separation inner cylinder 604. Therefore, dust 609 is sequentially accumulated on the back filter portion, and dust is collected.

  Further, dust and air that could not be separated in the cyclone separation chamber 617 flow to the filter storage portion 619 through a plurality of through holes 604 a provided on the cylindrical side surface of the dust separation inner cylinder 604.

  The filter storage unit 619 is connected to the dust separation inner cylinder 604, and dust and air that have not been separated by the cyclone separation unit 602 flow in and the rear filter 606 collects the dust.

  A hinge mechanism 614 is provided at a position slightly distant from the center axis 615 on the lower surface of the dust collection chamber 603 to the outer peripheral side, and an opening / closing lid 610 is rotatably supported by the hinge mechanism 614.

  As shown in FIG. 7, the opening / closing lid 610 includes a lower surface portion 610 </ b> A that forms a part of the bottom surface portion of the dust collection housing portion 616 and a side surface portion 610 </ b> B that opens and closes the opening portion 621 of the side surface portion 620 of the dust collection housing portion 616. It is configured.

  Here, the dust conveyance path 613 and the backflow prevention valve 622 provided in the dust conveyance path 613 connecting the cyclone dust collection chamber 617 and the dust collection container 616 are different from the first embodiment. It is not attached to the opening / closing lid 610 but is attached to the dust collecting housing 616 side. The dust conveyance path 613 is a passage for conveying the dust and air separated in the cyclone separation chamber 617 to the dust container 616, and the passage area of this portion is narrow.

  Then, the end surface of the opening / closing lid 610 opposite to the hinge mechanism 614 extends to a portion where the dust conveyance path 613 is provided, and dust that is clogged in the dust conveyance path 613 is removed when the opening / closing lid 610 is opened. Be able to.

  In addition, if the entire or part of the side surface portion 610B of the opening / closing lid 610 is configured to allow the dust accumulated in the dust accommodating portion 616 to be visually observed, such as a transparent plastic material, the accumulated dust can be removed from the front surface of the cleaner body. There is an effect that it is easy to visually recognize.

  Furthermore, as shown in FIG. 6, according to the second embodiment, since the separation wall 605 is provided beyond the central axis 615, the opening 621 is not the maximum area. (The maximum area is the diameter portion) This is because the capacity of the dust collecting housing 616 is increased. However, in this case as well, since the dust storage chamber 512 is open, dust can be scraped out by the operator's hand, so as described in the conventional example, the inner wall or narrow path portion of the dust collection chamber or cyclone separation unit It is possible to eliminate the phenomenon of being caught in

  In the above, air containing dust sucked in by the suction force generated by the electric blower 202 shown in FIG. 1 flows into the dust collector 601 through the suction body 107, the extension pipe 106 and the hose 103.

  The air containing the dust flowing in flows in from the inlet 607 so as to flow substantially along the inner peripheral surface of the cyclone separator 602, and the inside of the cyclone separator 602 is swung as indicated by an arrow 608. Air and dust are separated by the action.

  Due to the centrifugal separation action, the air on the outer peripheral side contains a large amount of dust, and conversely, the air on the inner peripheral side is reduced in dust. Then, the air containing much dust after centrifugation flows into the dust container 616 of the dust collection chamber 603 through the inner peripheral side of the opening lid 610 as indicated by the arrow 611 which is the first flow path. The dust flows toward the dust separation inner cylinder 604, and at this time, the dust sequentially accumulates from the vicinity of the back filter of the separation wall 605.

  On the other hand, as shown by the arrow 612 that is the second flow path, the air from which dust is separated by the centrifugal separation action is less dust from the plurality of through holes 604a provided in the dust separation inner cylinder 604. It flows into the upper filter 606 through the interior of 604. Since the flow of the second flow path does not pass through the dust 609 accumulated in the dust collection chamber 603, even if a large amount of dust 609 accumulates and the flow 611 of the first flow path is gradually blocked, the first flow path Since there is little accumulation of dust, the air from which the dust has been separated by centrifugation can be kept flowing, so that the suction force of the entire cleaner can be maintained. On the other hand, the dust accumulated on the back filter 605 is compressed by the suction force.

  Small and light dust that could not be separated by the centrifugal separation action of the cyclone separating unit 602 and fine dust that could not be collected by the back filter 605 are collected by the upper filter 606. The air that has passed through the upper filter 606 is sucked into the electric blower 202. The upper filter 606 is formed of a filter member folded in a pleat shape (folded fold) in a frame having a substantially circular cross section in order to increase the ventilation area.

  Further, as in the first embodiment, instead of the through hole 604a of the dust separation inner cylinder 604 and the through hole of the separation wall 605, a mesh member made of metal, nylon, polyester, or the like is formed by covering or insert molding. It may be affixed. Moreover, you may make it comprise with the metal (for example, stainless steel) which contains the metal (for example, silver) which has an antibacterial action, or the antibacterial substance (for example, silver), or was apply | coated so that propagation of bacteria can be suppressed.

  In the vacuum cleaner performing the above operation, when the user discards the accumulated dust 609, the dust collector 601 is removed from the main body 101 of the vacuum cleaner and the opening / closing lid 610 is opened as shown in FIG. The accumulated dust 609 can be discharged. The open / close lid 302 is provided in a substantially parallel direction to the substantially cylindrical central axis 615 of the dust collecting portion 603.

  Therefore, in this embodiment, almost the entire dust container 616 shown in FIG. 6 is opened, so that the dust accumulated in the dust container 512 can be smoothly discharged and discarded.

  As shown in FIG. 6, since the separation wall 605 is provided beyond the central axis 615, the opening 621 is not the maximum area, but the dust storage chamber 512 is open, so that the dust can be removed by the operator's hand. Since dust can be scraped off, it is possible to eliminate the phenomenon of being caught on the inner wall or narrow path portion of the dust collection chamber or cyclone separation section as described in the conventional example.

  As described above, according to the embodiment, even if the dust collector is downsized, the area of the opening (opening / closing lid portion) for discharging the accumulated dust can be increased, and the dust can be easily discharged. .

  Further, due to the centrifugal separation action, there are a first flow path through which air on the outer peripheral side containing a lot of dust passes and a second flow path through which air on the inner peripheral side with less dust passes. Since the flow of the second flow path does not pass through the dust container, it does not pass through the dust accumulated in the dust collecting chamber, and even if the dust accumulates and the flow of the first flow path is gradually blocked, the centrifugal flow is Since the intake air from which the dust has been separated by the separation can continue to flow, the suction force of the entire cleaner can be maintained. For this reason, there exists an effect that the attraction | suction power of the whole vacuum cleaner can be maintained.

  Further, since the accumulated dust is compressed by the suction force, there is an effect that more dust can be accumulated in the cyclone dust collecting chamber.

  Further, if the opening lid portion is made of a transparent member, the accumulated dust is easily visible from the front surface of the cleaner body.

  Furthermore, according to the present embodiment, since a part of the side surface portion and the bottom surface portion of the dust collecting chamber can be opened, there is an effect that dust can be more easily discharged.

  In addition, it is possible to open the transport port, which has the smallest flow path cross-sectional area, in the dust transport path of the dust collection chamber, so that dust can be easily removed even if dust overflows from the dust collection chamber or is caught in the transport port. I can do it.

  Next, a third embodiment of the present invention will be described in detail with reference to the drawings. Since the cleaner body has basically the same configuration as that of the first embodiment, a dust collector will be described below.

  FIG. 8 shows a cross-sectional view of a cyclone type dust collecting apparatus 801 according to the third embodiment of the present invention, taken along the approximate center.

  In FIG. 8, the dust collector 801 includes a cyclone separator 802 that separates dust and air by centrifugal force generated by swirling air containing dust, and a dust collection chamber 803 that stores the separated dust.

  As shown in the figure, a dust collection chamber 803 for storing separated dust is disposed adjacent to the lower side of the cyclone separator 802. The cyclone separator 802 and the dust collection chamber 803 are integrally configured so as not to be separated. In this case, since the dust collection chamber 803 is located below the cyclone separation unit 802, the cyclone separation unit 802 and the dust collection chamber 803 are integrally handled during removal.

  A cylindrical dust separation inner cylinder 804 attached to a separation wall 818 forming the cyclone separation chamber 817 is provided near the center of the cyclone separation chamber 817 constituting the cyclone separation section 802. A plurality of through holes 804 a are provided on the cylindrical side surface of the inner cylinder 804.

  In the dust collection chamber 803, a dust container 816 into which dust and air separated by the cyclone separator 802 flow is formed. The dust container 816 and the cyclone separation chamber 817 are partitioned by an umbrella-shaped separation wall 805 fixed to the dust separation inner cylinder 804. An annular dust conveyance path 813 is formed between the separation wall 805 and the wall surface forming the cyclone separation chamber 817 and the dust container 816.

  You may make it collect a dust by providing a back filter etc. in the opening part 820 of the umbrella-shaped separation wall 805 opened to the dust storage part 816 as needed.

  The dust container 816 and the cyclone separation chamber 817 are divided at a portion of the dust conveyance path 813 as indicated by a dividing line 815, and both are connected by a hinge mechanism 814. Therefore, the other side of the hinge mechanism 814 is configured to be engaged and disengaged by the hook mechanism. For this reason, when the hook mechanism is released, the dust container 816 can be rotated with the hinge mechanism 814 as a fulcrum, so that the dust container 816 hangs down in the direction of gravity and is opened.

  Air containing dust sucked from the hose attachment port 201 flows into the cyclone separation chamber 817 from the inflow port 807, and the air containing dust flows to the dust storage portion 816 through the dust conveyance path 813, and is separated from the separation wall. It flows to the filter storage portion 819 through the opening portion 820 of 805 and the inside of the dust separation inner cylinder 804.

  Accordingly, the dust 809 is sequentially accumulated in the dust collecting housing portion 816, and the dust is collected. In this case, if a back filter is provided in the opening 820, dust collection performance can be further improved.

  In addition, dust and air that have not been separated in the cyclone separation chamber 817 flow to the filter storage portion 819 through a plurality of through holes 804 a provided in the cylindrical side surface of the dust separation inner cylinder 804.

  The filter storage unit 819 is connected to the dust separation inner cylinder 804, and dust and air that have not been separated by the cyclone separation unit 802 flow in and the rear filter 806 collects the dust.

  One side of a hinge mechanism 814 is fixed to the side surface forming the cyclone separation chamber 817, and an opening / closing lid 810 that also serves as a dust container 816 is rotatably supported on the other side of the hinge mechanism 814. Therefore, the side part of the dust storage part 816 corresponds to the side part of the dust storage parts 512 and 616 shown in the first and second embodiments.

  And when the opening-and-closing lid | cover 810 is open | released, the dust jammed in the dust conveyance path 813 can be removed now.

  In the above, air containing dust sucked by the suction force generated by the electric blower 202 flows into the dust collector 801 through the suction body 107, the extension pipe 106 and the hose 103. The air containing the dust that has flowed in is swirled inside the cyclone separator 802 as indicated by an arrow 808 by an inflow port 807 that opens so as to have a swirling component along the inner peripheral surface of the cyclone separator 802. Separation of air and dust by separation action.

  Due to the centrifugal separation action, the air on the outer peripheral side contains a large amount of dust, and conversely, the air on the inner peripheral side is reduced in dust. The air containing the dust after centrifugation accumulates in the dust collection chamber 816 through the dust conveyance path 813 between the separation wall 805 and the inner peripheral surface of the cyclone separator 802 as indicated by an arrow 811.

  On the other hand, as shown by arrows 808 and 812, the air in which the dust is separated by the centrifugal separation action is less in the dust separation inner cylinder 804 from the plurality of through holes 804a provided in the dust separation inner cylinder 804. Through the upper filter 806. Since the flow of the arrow 808 does not pass through the accumulated dust 809 in the dust collecting storage unit 816, the suction force of the entire vacuum cleaner can be maintained even when the dust 800 is collected by sucking the dust. Can do.

  Small and light dust that could not be separated by the centrifugal separation action of the cyclone separation unit 802 is collected by the upper filter 806. The air that has passed through the upper filter 806 is sucked into the electric blower 202. The upper filter 806 is formed of a filter member folded in a pleat shape (folded fold) in a frame having a substantially circular cross section in order to increase the ventilation area.

  Further, in the same manner as in the first embodiment, instead of the through hole of the dust separation inner cylinder 804, a mesh member made of metal, nylon, polyester, or the like may be attached by covering or insert molding. Moreover, you may make it comprise with the metal (for example, stainless steel) which contains the metal (for example, silver) which has an antibacterial action, or the antibacterial substance (for example, silver), or was apply | coated so that propagation of bacteria can be suppressed.

  When the user discards the accumulated dust 809, the dust collector 801 is removed from the electric vacuum cleaner main body 101 as shown in FIG. 9, and the accumulated dust is discharged by opening the opening / closing lid 810.

  Here, since the passage area is small in the vicinity of the dust conveyance path 813 formed between the separation wall 805 and the inner peripheral surface of the cyclone separation chamber 817 and the dust container 816, dust is easily caught and collected. On the other hand, since the opening lid 810 is configured to open near the dust transport path 813, dust accumulated near the dust transport path 813 can be easily discharged.

  In this embodiment, the dividing line 815 between the opening / closing lid 810 and the cyclone separation chamber 817 is configured to be substantially parallel to the bottom surface of the opening / closing lid 810, but may be inclined as indicated by the dividing line 821 indicated by a broken line. In this case, if the narrowest part in the vicinity of the dust conveyance path 813 is partially included, dust is easily discharged.

  As described above, according to the embodiment, it is possible to open the dust conveyance path 813 having the smallest flow path cross-sectional area in the dust conveyance path of the dust collection chamber 803, and when dust overflows from the dust collection chamber 803, Even when caught on the dust conveyance path 813, dust can be easily removed.

  DESCRIPTION OF SYMBOLS 101 ... Vacuum cleaner main body, 102 ... Suction hose, 103 ... Hand handle, 104 ... Operation part, 105 ... Extension pipe, 106 ... Suction body, 202 ... Electric blower, 302 ... Opening lid, 304 ... Air inlet, 501 ... Cyclone separation unit, 502 ... cyclone dust collection chamber, 503 ... inner cylinder, 504 ... back filter, 505 ... rear filter, 510 ... check valve, 602 ... cyclone separation part, 603 ... cyclone dust collection chamber, 604 ... inner cylinder, 605: Back filter, 606: Upper filter, 802: Cyclone separation part, 803 ... Cyclone dust collection chamber, 804 ... Inner cylinder, 805 ... Partition part, 806 ... Upper filter.

Claims (2)

In a vacuum cleaner provided with a vacuum cleaner body equipped with an electric blower, and a dust collector detachably attached to the vacuum cleaner body,
The dust collector includes a substantially cylindrical cyclone separation part, a dust collection chamber disposed adjacent to the lower side of the cyclone separation part, and configured integrally with the cyclone separation part,
An opening for discharging dust accumulated in the dust collecting chamber and an opening / closing lid for opening and closing the opening are provided at a lower portion of the dust collecting device,
A hinge mechanism for attaching the open / close lid in the vicinity of the opening in the dust collection chamber,
The lid is provided with a a part and the bottom side of the dust collecting chamber,
The electric vacuum cleaner according to claim 1, wherein the opening is formed to extend to a dust transport path having a small passage area in a path for transporting dust connecting the cyclone separator and the dust collection chamber . The vacuum cleaner according to claim 1, wherein
The vacuum cleaner is characterized in that the dust collecting device includes a filter into which air having a small amount of dust that has passed through the cyclone separator flows .

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