TW201404349A - Vacuum cleaner - Google Patents

Abstract

The subject of the present invention is that when a cover body located at the lower portion of a cyclone separation portion is opened to discharge the dust, the volume of the dust with fibers compressed during suction is enlarged, so that the dust will be clogged on the inner walls of dust collecting chamber and cyclone separation portion and at the narrow passage causing difficulty of dust disposal. The solution is that an opening portion for discharging dust, a cover body portion for opening and closing the opening portion for discharging the cumulated dust from the opening portion by opening the cover body portion are both configured at a portion of the side surface of the dust collecting chamber. Because the present invention may ensure an opening area larger than the opening area determined by the diameters of the cyclone separation portion and the dust collecting chamber, the discharge of dust may become easier.

Description

vacuum cleaner

The present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner that can be loaded and unloaded from a vacuum cleaner body.

The general vacuum cleaner of the present invention is called a vacuum cleaner body provided with a dust collecting device; a floor suction opening body that attracts dust on the ground; and a floor moving type that connects the vacuum cleaner body and the floor suction opening body with an extension pipe and a suction pipe. Constructor.

The cleaner body of such a vacuum cleaner is a structure provided with a dust collecting device and an internal electric blower, and is freely movable by a wheel. Here, an example is to form the dust collecting device in a cyclone manner.

In the cyclone type dust collecting device, the air containing the dust sucked from the suction port is separated into air and dust by the cyclone separation unit, and the separated dust is deposited in the dust collecting chamber. In the middle, the cyclone separation unit and the dust collection chamber are combined to form a dust collecting device.

Further, in order to discharge the accumulated dust, a method of separating the dust collecting device from the cleaner body and discharging it from the lower portion of the dust collecting chamber is a general method. In the case of such a cyclone vacuum cleaner, it is opened in Japan. It is known that the dust of the dust collecting chamber is discharged, etc., as disclosed in Japanese Laid-Open Patent Publication No. JP-A-2010-57989 (Patent Document 3), and the like. Specifically, in particular, the open bottom cover constitutes the lower bottom surface portion of the dust collecting chamber, and the dust accumulated in the dust collecting chamber is discarded by opening the lid.

[Advanced technical literature] [Patent Literature]

[Patent Document 1] Japanese Laid-Open Patent Publication No. 2011-177595

[Patent Document 2] Japanese Patent Laid-Open Publication No. 2011-110234

[Patent Document 3] Japanese Patent Laid-Open Publication No. 2010-57989

However, in recent years, in order to reduce the size and weight of the vacuum cleaner body (hereinafter, generally referred to as miniaturization), it is necessary to reduce the size of the dust collecting device when the size of the vacuum cleaner is reduced. On the other hand, there is a demand for increasing the amount of dust that can be deposited in the dust collecting chamber to reduce the waste circulation of the dust. Therefore, it is necessary to cope with the requirement of increasing the volume of the dust collecting chamber.

However, in the dust collecting device using the cyclone method, the cyclone separation unit divides the air and the dust by centrifugal separation, and forms a separation portion having a substantially cylindrical shape in a part thereof.

In addition, in order to reduce the size of the cyclone type dust collecting device and to reduce the diameter of the cyclone separating portion and the dust collecting chamber, the radial direction (substantially circular shape) of the lower portion of the substantially cylindrical separating portion is formed. The area will be smaller.

Therefore, as disclosed in Patent Document 1 to Patent Document 3, when the lid body located at the lower portion of the separation portion discharges dust, the volume of the fibrous dust in the state of being compressed during the suction is increased, and the dust is stuck. The phenomenon of the dust collecting chamber having a small diameter, the inner wall of the cyclone separating portion, and the narrow road portion may cause difficulty in discharging and discarding dust.

Further, when the opening area of the cyclone separation portion that is opened and closed by the lid body is reduced, in order to increase the dust collection volume, a method of increasing the dust collection amount of the dust by increasing the length of the cyclone separation portion and the dust chamber in the axial direction is considered. .

However, when the length of the axial direction of the cyclone separation part and the dust collecting chamber becomes long, the dust collecting chamber and the cyclone separation minister have a smaller diameter, which further promotes the phenomenon of the inner wall and the narrow road portion. Difficulties in the discharge of dust become difficult. Therefore, in actual use, the possible axial length of the discharge of dust is limited, and as a result, there is a problem that the dust collection volume cannot be increased.

An object of the present invention is to provide a novel vacuum cleaner including a dust collecting chamber that ensures a predetermined dust collecting volume and that is easy to discharge dust.

The present invention is characterized in that an opening portion for discharging dust and an opening and closing opening are provided in a part or all of the side portion of the side surface of the dust collecting chamber. The lid portion of the portion can open the opening and closing cover to discharge the accumulated dust from the opening.

According to the present invention, since a part or all of the side surface portion of the dust collecting chamber can be used as an opening portion, an opening area larger than an opening area determined by the diameters of the cyclone chamber and the dust collecting chamber can be secured, so that there is The elimination of dust is an easy effect.

In addition, even if the dust collecting device is downsized, the opening area of the opening in which the dust is discharged can be increased. Therefore, there is an effect that the dust collecting volume of the dust collecting chamber can be increased.

101‧‧‧ vacuum cleaner body

102‧‧‧ suction tube

103‧‧‧Handle on hand

104‧‧‧Operation Department

105‧‧‧Extension tube

106‧‧‧Sucking body

202‧‧‧Electric blower

302‧‧‧open cover

304‧‧‧Air inlet

501‧‧‧Cyclone Separation Department

502‧‧‧Cyclone dust chamber

503‧‧‧ inner tube

504‧‧‧Back filter

505‧‧‧Back filter

510‧‧‧ check valve

602‧‧ Cyclone Separation Department

603‧‧‧Cyclone dust chamber

604‧‧‧ inner tube

605‧‧‧Back filter

606‧‧‧Upper filter

802‧‧ Cyclone Separation Department

803‧‧‧Cyclone dust chamber

804‧‧‧ inner tube

805‧‧‧section

806‧‧‧Upper filter

Fig. 1 is an external perspective view of a vacuum cleaner to which a dust collecting device to which the present invention is applied.

Fig. 2 is a longitudinal sectional view showing a vacuum cleaner main body according to an embodiment of the present invention.

3 is an external perspective view of a dust collecting chamber from which a dust collecting device according to an embodiment of the present invention is removed from a cleaner body.

Fig. 4 is an external perspective view showing a state in which the opening and closing cover of the dust collecting chamber shown in Fig. 3 is opened.

Fig. 5 is a longitudinal sectional view of the dust collecting device shown in Fig. 3 which is an embodiment of the present invention.

[ Fig. 6] Fig. 6 is an external perspective view of a dust collecting chamber in which a dust collecting device according to a first other embodiment of the present invention is removed from a cleaner body.

Fig. 7 is an external perspective view of the dust collecting device shown in Fig. 6 .

FIG. 8 is an external perspective view of the dust collecting chamber of the dust collecting device according to the second other embodiment of the present invention, which is removed from the cleaner body.

Fig. 9 is an external perspective view of the dust collecting device shown in Fig. 8 .

[Formation for carrying out the invention]

Hereinafter, the embodiments of the present invention will be described in detail with reference to the drawings, but the present invention proposes a plurality of embodiments. Therefore, the detailed description of each embodiment is not limited to the embodiments, and various modifications and applications of the basic concept of the invention are included.

[Example 1]

Hereinafter, the first embodiment of the present invention will be described in detail with reference to the drawings. 1 is a perspective view showing the appearance of a vacuum cleaner to which the present invention is applied. The reference numeral 101 in FIG. 1 is a cleaner body, and a dust collecting device 102 is mounted on the cleaner body 101, and the cleaner body 101 is connected to the hand grip 104 via a suction pipe 103. The hand grip 104 is coupled to the mouthpiece body 107 via the extension tube 106.

Further, the hand grip 104 is provided with an electric blower provided in the cleaner body 101 and an electric screw provided in the mouthpiece 107. The hand-operated portion 105 of the drive control of the brushing.

2 is a cross-sectional view showing the vacuum cleaner body 101 cut substantially at the center, and the cleaner body 101 forms a hose mounting opening 201 in a frame 204 formed of a material such as plastic, and an electric blower 202 that generates an attraction force is disposed inside the vacuum cleaner body 101. And a high-density filter 203 configured to purify the exhaust gas.

In the upper portion of the front side of the cleaner body 101, the dust collecting device 102 is placed in a downwardly inclined state, and the dust collecting device 102 is fluidly connected to the hose mounting opening 201, and the other fluid is connected to the electric blower 202.

Here, the dust collecting device 102 is roughly constituted by the cyclone separating unit 501 and the dust collecting chamber 502, and the cyclone separating unit 501 is fluidly connected to the hose mounting opening 201, and the dust collecting chamber 502 is fluidly connected to the electric blower 202. Further, the cyclone separation unit 501 and the dust collecting chamber 502 are described as an embodiment that is not separable in the present embodiment, and may be configured to be detachable from each other.

In other words, the cyclone separation unit 501 and the dust collecting chamber 502 can be attached to and detached from the cleaner body 101 by a hook mechanism or a screw mechanism (for example, a structure in which the screw is coupled to the cyclone separation unit 501 and the dust collecting chamber 502). The integrated cyclone separation unit 501 and the dust collection chamber 502 may be separated from the cyclone separation unit 501 and separated. In particular, when the structure in which only the dust collecting chamber 502 is removed is formed, dust is discarded from the dust collecting chamber without any burden on the user when the garbage is discarded.

In the following description, there is a separation whirlwind for the integral structure. The embodiment of the separation unit 501 and the dust collecting chamber 502 will be described. However, even if the separation type is used, the cyclone separation unit 501 and the dust collecting chamber 502 are separated from each other. Therefore, the configuration is substantially the same.

Further, the dust-containing air sucked from the mouthpiece 107 flows into the dust collecting chamber via the hose mounting opening 201, and is discharged to the dust collecting chamber 202 and the high-density filter 203 to the air. The exterior of the frame 204 made of plastic or the like. Further, although not illustrated, a wire reel for supplying electric power is provided inside the casing 204 forming the outer periphery of the cleaner body 101.

Further, when the user turns on the power button provided at the hand operation unit 105, the electric blower 202 acts to generate an attractive force, and the air sucked from the mouthpiece body 107 and the dust sucked together with the air are extended by the extension pipe 106, The order of the suction pipe 103 and the cleaner body 101 is guided. The air that has flowed into the cleaner body 101 from the hose mounting opening 201 and the dust that is sucked in together with the air are separated into dust and air in the cyclone separation unit 501 and the dust collecting chamber 502 constituting the dust collecting device 102, and the dust is separated. The air passes through the high-density filter 203 via the electric blower 202, and becomes clean air that collects finer dust, and is exhausted to the outside by the cleaner body 101.

FIG. 3 shows an appearance of a state in which the dust collecting device 102 is removed from the cleaner body 101, and FIG. 4 shows an appearance of a state in which the opening and closing cover 302 for dust discharge is opened.

In FIG. 3 and FIG. 4, the upper surface of the dust collecting device 102 (the surface which becomes the upper side when it is mounted in the cleaner body) 305 is provided with the vacuum cleaner. When the dust collecting device 102 is removed, the handle portion 301 used when the dust collecting device 102 is transported, the button 303 of the locking jig that is locked in the state of the opening/closing cover (lid portion) 302 shown below is released. Moreover, the inflow port 304 of the dust containing air is provided in the lower part of the dust collecting device 102 (the surface which becomes the lower side at the time of the inside of the cleaner body) 306. The inflow port 304 is connected to the hose mounting opening 201.

Further, a portion of the cylindrical side surface portion 307 existing between the upper surface portion 305 and the lower surface portion 306 of the dust collecting device 102 is provided with an opening portion 308 for discharging dust, and the opening portion 308 is formed by the opening and closing cover 302. Closed, open composition. The side surface portion 307 is formed to be orthogonal to the surface of the upper surface portion 305 and the lower surface portion 306, and the opening and closing cover 302 is rotatably supported by the hinge mechanism 309 at the end surface 302A on the lower surface portion 306 side, and is the hinge The mechanism 309 is a fulcrum that opens and closes the opening and closing cover 302.

When the opening/closing cover 302 is rotatably supported by the end surface 302A on the lower surface 306 side and the dust is discharged from the dust collecting device 102, the dust can be easily discharged by tilting the dust collecting device 102 so that the opening and closing cover 302 is suspended in the direction of gravity. By.

Further, unlike the present configuration, the end surface 302B on the upper surface portion 305 side of the opening and closing cover 302 and the side end surface 302C of the opening and closing cover 302 may be provided with a hinge mechanism 309 as a rotation fulcrum of the opening and closing cover 302. In this case, it is only necessary to provide a maintenance mechanism for maintaining the state in which the opening and closing cover 302 is opened. Further, the opening and closing cover 392 may be provided without the hinge mechanism 309, and only the opening and closing cover 302 may be attached or detached. However, in this case, the fixing mechanism or the locking mechanism that does not fall off during cleaning is provided. can.

Further, the shape of the opening and closing cover 302 is a circular arc shape along the cylindrical shape of the dust collecting device 102. This is because the hinge mechanism 309 is provided in the cyclone separation portion 501. In other words, since the cyclone separation portion 501 has a cylindrical shape due to its function, the shape of the opening and closing cover 302 in this portion is formed in an arc shape, and the entire shape of the opening and closing cover 302 is aligned with the circular arc shape from the viewpoint of manufacturing. Thereby, the opening and closing cover 302 can be obtained without using a complicated metal mold. Further, the hinge unit 309 is provided in the cyclone separation unit 501, and a large opening portion 308 can be formed in the side surface portion 307.

Further, since the hinge mechanism 309 is displaced from the cyclone separation portion 501, the shape of the dust collecting chamber 502 can be formed into a rectangular parallelepiped shape to form a flat opening and closing cover. Therefore, the basic concept of the present invention is to include such a configuration.

Further, although the area of the opening portion 308 formed in the circumferential direction of the side surface portion 307 is determined by the dust collecting capacity of the dust, when the length of the dust collecting chamber 502 is fixed, the dust collecting capacity is increased. The width of the portion 308 in the circumferential direction is small, and the discharge of dust cannot be smoothed. Therefore, the area of the most suitable opening portion is determined. This is described in detail in the description of FIG. Further, in the present embodiment, the opening portion 308 is formed to the maximum diameter portion (= diameter) of the dust collecting chamber in order to increase the opening area. When the width of the opening 308 in the circumferential direction is increased, the dust collecting capacity of the dust is limited, and the dust storage chamber (see reference numeral 512 in FIG. 5) constituting the dust collecting chamber will be expanded as will be described later. The dust storage chamber 310 side can increase the dust collection capacity.

Further, the shape of the dust collecting chamber 502 is formed into a square as described above. When the flat opening and closing cover is formed in a body shape, since the area of the opening portion is constant, it is advantageous for the determination of the dust collecting capacity.

Further, a filter housing portion 310 having a rectangular parallelepiped shape is formed in the opening portion 308 and a side surface opposite to the opening and closing cover 302, and an air outlet opening portion that connects the electric blower 202 is provided in the filter housing portion 310. The structure of the filter housing portion 310 will be described in detail in the description of FIG.

Next, a specific configuration of the dust collecting device 102 will be described in detail with reference to Fig. 5, but Fig. 5 is a cross-sectional view showing the dust collecting device 102 in a substantially central section of the cyclone type.

In FIG. 5, reference numeral 501 denotes a cyclone separation portion that separates dust and air by centrifugal force generated by inhalation rotation, and a dust collecting chamber 502 that is adjacent to the upper side accumulated and separated dust is disposed. The cyclone separation unit 501 and the dust collection chamber 502 are integrally formed in an inseparable manner, and may be configured to be separable as described above.

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

The dust collection chamber 502 is provided with two chambers, one of which is a dust accommodating portion 512 that allows air containing a large amount of dust to flow by centrifugal separation, and the other is a part of the suction that is separated by the centrifugal separation (after centrifugation) The air having less dust) flows into the filter housing portion 310.

The dust receiving portion 512 and the filter housing portion 310 are by The separation wall 516 is isolated, and the separation wall 516 is provided with a plurality of openings. Further, a back filter 504 is disposed on the surface of the separation wall 516 on the side of the dust accommodation portion 512. Further, the dust accommodating portion 512 is connected to the filter accommodating portion 310 via an opening of the back filter 504 and the partition wall 516.

The filter accommodating portion 310 is connected to the dust separating inner cylinder 514, and dust and air that cannot be separated in the cyclone separating portion 501 flow in, and dust is collected in the rear filter 505.

The rear filter 505 is formed with a filter member that is folded into a pleat shape (mountain pleat) in a frame body having a substantially quadrangular cross-sectional shape in order to enlarge the ventilation area. The direction of the fold line of the mountain pleat of the filter member is ideal in the longitudinal direction (the direction of gravity action). When the dust removing mechanism that gives the rear filter 505 is impacted on the downstream side of the rear filter 505, since the folding direction is substantially vertical, the fine dust adhering to the rear filter 505 can be easily dropped downward and removed. In addition, the fold line direction of the mountain pleats may be arranged obliquely.

Further, the cyclone separation chamber 503 is connected to the dust accommodation portion 512 via the communication passage forming portion 518, and the communication passage forming portion 518 is provided with a check valve 510 that prevents the sucked dust from flowing back to the cyclone chamber 503 when the operation of the cleaner is stopped. .

The air flow deflecting portion 519 is disposed in the opposite dust receiving portion 512 of the communication path forming portion 518, and acts to cause the air flow flowing from the communication path forming portion 518 to face the air flow deflecting portion 519 toward the rear surface filter 504. The separation wall 516 side is switched in the direction.

Further, since the inner peripheral side of the opening and closing cover 302 has an arc shape In the surface, the airflow that has flowed out of the dust-containing air from the communication path forming portion 518 flows in a direction that changes toward the dust receiving portion 512 side along the arcuate surface. The arcuate surface is provided to adjust the flow of air, and the cross section may have a trapezoidal or triangular shape. In other words, the airflow from the air containing the dust from the communication path forming portion 518 may be changed in the direction in which the cross section is enlarged between the dust receiving portion 512 side.

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

The communication path forming portion 518 and the air flow deflecting portion 519 are fixedly attached to the inner peripheral surface side of the opening and closing cover 302, and are moved together with the opening and closing cover 302 when the opening and closing cover 302 is opened. Therefore, the dust collecting chamber 502 is in a state of being largely opened, and dust can be easily discharged. Further, since the communication path forming portion 518 and the air flow deflecting portion 519 are attached to the opening and closing cover 302, an effect of easy alignment between the two can be expected.

In addition, reference numeral 511 denotes a central axis of a substantially cylindrical shape of the cyclone separation portion 501, and reference numeral 509 denotes dust deposited in the dust accommodation portion 512.

Further, as shown in FIGS. 3 and 4, the opening and closing cover 302 is attached to the side surface portion 307 of the cyclone separating portion 501 and the dust collecting chamber 502 so as to be openable and closable across the cyclone separating portion 501 and the dust collecting chamber 502. A hinge mechanism 309 is provided on a side surface portion of the cyclone separation portion 501, and the opening and closing cover 302 is opened by the hinge mechanism 309 as a rotation center. At the end face 302B of the opening and closing cover 302 A clamp engagement portion 312 is attached to the inner side, and the clamp engagement portion 312 is engaged with and disengaged from the clamp 311 provided in the upper surface portion 305 of the dust collecting device 102. By pressing the button 303, the clamp 311 is engaged from the clamp portion. 12 is detached and the opening and closing cover 302 is opened.

Further, the opening and closing cover 302 is a part of the dust receiving portion 512, and the dust receiving portion 512 is formed by closing the opening portion 308. A lining member made of a material such as rubber is interposed between the opening and closing cover 302 and the opening 308, and is configured to maintain airtightness so as not to weaken the negative pressure generated by the electric blower 202.

In the present embodiment, the opening and closing cover 302 has an arc shape, and the negative pressure on the inner side of the opening and closing cover 302 and the atmospheric pressure on the outer side of the opening and closing cover 302 are generated by the electric blower 202. The force generated between them becomes stronger. When the flat opening/closing cover is formed, the center of the center may be deformed toward the inner side. Therefore, it is necessary to increase the thickness of the opening and closing cover. However, since the opening and closing cover 302 according to the present configuration has an arc shape, rigidity can be improved. It is possible to avoid the case where the thickness of the opening and closing cover 302 is increased more than necessary.

Although the order of description is reversed, the through hole 515 and the separation wall 516 of the inner cylinder 514 may be replaced by a mesh member made of metal, nylon, polyester or the like or by an adhesive method such as insert molding. Since the opening is opened, the effect of forming the through hole becomes easy.

Further, it may be made of a metal having an antibacterial action (for example, silver), containing an antibacterial substance (for example, silver), or coated with a metal (for example, The composition of stainless steel) can inhibit the growth of bacteria.

In addition, for example, the entire or a part of the opening and closing cover 302 can be formed of a transparent plastic material, so that the dust deposited in the dust accommodating portion 512 can be visually observed, and the dust that is easily deposited from the front surface of the cleaner body can be easily seen.

As described above, the air containing the dust is sucked into the dust collecting device 102 of the cleaner body 101 through the suction port 107, the extension pipe 106, and the hose 103 by the suction force generated by the electric blower 202.

The air that has flowed into the dust flows in from the inflow port 304 so as to flow along the inner peripheral surface of the cyclone chamber 503 of the cyclone separation unit 501, and rotates inside the cyclone portion 501 as indicated by the arrow 506. The air and dust can be separated by centrifugal separation.

The air on the outer peripheral side of the cyclone chamber 503 contains a large amount of dust due to the centrifugal separation, and the air on the inner side of the opposite side becomes a stream of which the dust is small. Further, the air containing a large amount of dust due to the centrifugal separation flows into the dust collecting chamber 502 through the communication path 518 provided in the opening cover 302, and the air containing the inflowing dust is an arrow 507 which is located in the first flow path. The way it flows, and only the dust is trapped in the back filter 504 and is sequentially stacked.

On the other hand, the air from which the dust is separated by the centrifugal separation (the air having less dust after the centrifugal separation) is as indicated by the arrow 508 of the second flow path, and is separated from the plurality of inner cylinders 514 disposed in the dust. The through holes 515 flow into the filter housing portion 310 through the inside of the dust separating inner cylinder 514. The air flow indicated by the arrow 508 is not passed Since the dust accommodating portion 512 does not pass through the dust 509 accumulated in the dust accommodating portion 512.

Therefore, even if a large amount of dust is accumulated in the dust accommodating portion 512 and the air flow of the air flow indicated by the arrow 507 is gradually blocked, the air separated by the centrifugal separation can be continuously flowed into the filter accommodating portion 310. Therefore, the overall attraction of the vacuum cleaner can be continued.

On the other hand, the dust deposited on the back surface filter 504 of the dust accommodating portion 512 is sequentially compressed by the suction force, and finally accumulated until the allowable collection amount of the dust accommodating portion 512.

Further, the light dust that cannot be separated by the centrifugal separation of the cyclone separation unit 501 and the fine dust that cannot be collected by the back filter 504 are trapped by the rear filter 505, and are formed through the rear filter. The air of 505 is drawn into the electric blower 202.

In the vacuum cleaner that performs the above-described operation, when the user discards the accumulated dust 509, the dust collecting device 102 is removed from the cleaner body 101 by holding the grip portion 301 as shown in FIG. 4, and the button 303 is opened and closed. The cover 302 can discharge the accumulated dust 509. The opening and closing cover 302 is a substantially cylindrical central axis 511 provided in the cyclone separation portion 501 in a substantially parallel direction.

Therefore, in this embodiment, since substantially the entire dust accommodating portion 512 shown in FIG. 5 is opened (viewed in the perspective of the dust accommodating portion 512), the dust deposited in the dust accommodating portion 512 can be smoothly discharged and given. Discarded.

Further, the opening 308 that is opened and closed by the opening and closing cover 302 The area is probably determined as follows.

Here, for the sake of simplicity, the shape of the dust collecting device 102 is considered to be a cylinder having a diameter D and a height L. At this time, the bottom area S1 is S1=π×D×D/4, and the maximum opening area S2 of the side surface of the cylinder (the area when the cylinder is cut parallel to the center line) is S2=D×L. The ratio of this area becomes S2/S1 = (L/D) × (4/π).

According to this formula, if L>0.8D, the opening area S1 of the side surface becomes larger than the bottom area S2 of the cylinder. In the present embodiment, since L = 1.07D, the opening area S1 of the side surface becomes larger than the bottom area S2 of the cylinder.

In the present embodiment, the opening area of the opening 308 is set such that the above relationship is established, and the opening area of the opening 308 may be appropriately determined as needed. In other words, when it is desired to ensure a large amount of dust collection, the opening area of the opening 308 can be set to be smaller than the maximum. Even in this case, since the dust can be dug by the operator's hand by opening the dust storage chamber 512, as shown in the conventional example, the card stuck in the dust collecting chamber, the inner wall of the cyclone separating portion, and the narrow road portion can be eliminated. phenomenon.

As described above, according to the first embodiment, even if the dust collecting device is downsized, the area of the opening (opening and closing cover portion) for discharging the deposited dust can be increased, and the discharge of so-called dust can be easily performed. Effect.

Further, even if the dust collecting device is downsized, the opening portion is sufficiently larger than the depth of the dust receiving portion and the dust is easily discharged, so that the height of the dust collecting chamber can be increased, and the so-called accumulation dust can be increased. The effect of the dust collecting volume of the dust collecting chamber of Egypt.

Further, a hinge mechanism is provided in the cyclone separation portion, and a large opening portion can be formed in the side surface portion of the dust collecting chamber.

Further, in addition to the opening and closing cover provided in the opening portion on the side surface, a part of the upper surface portion or the bottom surface portion can be opened, and the discharge of dust becomes easier.

Further, in the embodiment of the present embodiment, the cyclone separation portion is formed into a substantially cylindrical shape in order to improve the separation performance of the dust, and the dust collecting chamber may be formed into a substantially cylindrical shape in consideration of the ease of arrangement of the rear filter 505 and the like. The shape combined with the rectangle.

In addition, since the first flow path through which the air on the outer peripheral side containing a large amount of dust is passed by the centrifugal separation and the second flow path through which the air on the inner peripheral side with less dust passes, even if dust is attracted and dust is accumulated In the case of the dust collecting portion, the effect of keeping the suction force of the entire cleaner is continued.

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

Moreover, as long as the opening cover portion is formed of a transparent member, there is an effect that dust accumulated in the front surface of the cleaner body is easily recognized.

[Embodiment 2]

Next, the second embodiment of the present invention will be described in detail with reference to the drawings, but the vacuum cleaner body may be Since the first embodiment has basically the same configuration, the dust collecting device will be described below.

Fig. 6 is a cross-sectional view showing a portion of a cyclone type dust collecting device 601 according to a second embodiment of the present invention.

In FIG. 6, the dust collecting device 601 is composed of a cyclone separating portion 602 that separates dust and air by centrifugal force generated by rotating dust-containing air, and a dust collecting chamber 603 that collects and separates dust.

As shown in the figure, a dust collecting chamber 603 that is adjacent to the lower side of the cyclone separation unit 602 and collects the separated dust is disposed. The cyclone separation unit 602 and the dust collection chamber 603 are integrally formed in a separable manner. At this time, since the dust collecting chamber 603 is positioned below the cyclone separating portion 602, the cyclone separating portion 602 and the dust collecting chamber 603 are integrally processed when being removed.

In the vicinity of the center of the cyclone separation chamber 617 constituting the cyclone separation unit 602, a cylindrical dust separation inner cylinder 604 attached to the separation wall 618 forming the cyclone separation chamber 617 is provided, and the cylinder of the inner cylinder 604 is separated by the dust. A plurality of through holes 604a are provided on the side.

In the dust collecting chamber 603, a dust accommodating portion 616 into which the dust separated from the cyclone separating portion 602 and the air are introduced is formed, and the dust accommodating portion 616 and the cyclone separating portion 617 are isolated by the separating wall 605, and are disposed at the separating wall 605. There are many openings. Further, a back filter is disposed on the surface of the separation wall 605 on the side of the dust accommodation portion 616.

The air that is sucked in from the hose mounting opening 201 and contains dust flows into the cyclone chamber 617 from the inflow port 607, and the dust-containing air flows through the backflow prevention valve 613 to the dust containing portion 616, and passes through the back filter. The dust separation inner cylinder 604 flows to the filter housing portion 619. Therefore, the dust 609 in the back filter portion is sequentially piled up to collect dust.

Moreover, the dust and air which cannot be separated in the cyclone chamber 617 flow to the filter accommodating portion 619 through a plurality of through holes 604a provided in the cylindrical side surface of the dust separating inner cylinder 604.

The filter accommodating portion 619 is connected to the dust separating inner cylinder 604, and dust and air that cannot be separated in the cyclone separating portion 602 flow in, and the dust is collected in the rear filter 606.

A hinge mechanism 614 is provided at a position slightly deviated from the outer circumferential side of the lower central axis 615 of the dust collecting chamber 603, and the opening and closing cover 610 is rotatably supported by the hinge mechanism 614.

The opening and closing cover 610 is constituted by a lower surface portion 610A that forms a part of the bottom surface portion of the dust collecting portion 616 and a side surface portion 610B that opens and closes the opening portion 621 of the side surface portion 620 of the dust collecting portion 616 as shown in FIG.

Here, the dust-like delivery path 613 and the backflow prevention valve 622 provided with the backflow prevention valve 622 in the dust-like delivery path 613 that connects the cyclone chamber 617 and the dust collection chamber 616 are not attached to the opening and closing unlike the first embodiment. The cover 610 is attached to the dust collecting portion 616. The dust-like feed path 613 is a passage for transporting dust and air separated in the cyclone chamber 617 to the dust storage unit 616, and the passage area of the portion is narrowed.

Further, the end surface on the opposite side to the hinge mechanism 614 of the opening and closing cover 610 extends to the portion where the dust-like feed path 613 is provided, and when the open/close cover 610 is formed, the dust attached to the dust-like feed path 613 can be removed.

Moreover, as long as the opening and closing cover is made of, for example, a transparent plastic material The whole or a part of the side surface portion 610B of the 610 can constitute dust that can be visually deposited in the dust accommodating portion 616, and has an effect of easily seeing dust deposited from the front surface of the cleaner body.

Further, as shown in Fig. 6, according to the second embodiment, since the separation wall 605 is provided across the central axis 615, the opening portion 621 is not the largest area. (Maximum area-diameter portion) This is because the capacity of the dust collecting portion 616 is increased. However, even if dust is excavated by the operator's hand because the dust storage chamber 512 is opened at this time, the inner wall of the dust collecting chamber, the cyclone separation portion, and the narrow road can be eliminated as shown in the conventional example. Part of the phenomenon.

As described above, the air containing dust is sucked into the suction force generated by the electric blower 202 shown in FIG. 1 and flows into the dust collecting device 601 through the mouthpiece 107, the extension pipe 106, and the hose 103.

The air that has flowed into the dust flows in from the inflow port 607 so as to flow substantially along the inner peripheral surface of the cyclone separation unit 602, and rotates inside the cyclone separation unit 602 as indicated by an arrow 608, and the rotation is performed by the rotation. Separation separates air and dust.

The air on the outer peripheral side contains a large amount of dust due to the centrifugal separation, and the air on the inner side of the opposite side has less dust. Further, the air containing a large amount of dust after the centrifugal separation is as shown by the arrow 611 of the first flow path, and flows into the dust accommodating portion 616 of the dust collecting chamber 603 through the inner peripheral side of the opening cover 610. The dust separation inner cylinder 604 flows, and at this time, the dust is sequentially deposited from the vicinity of the back filter of the separation wall 605.

On the other hand, the dust is separated by centrifugal separation. The air having a small amount of dust flows into the upper filter 606 through the inside of the dust separating inner cylinder 604 from the plurality of through holes 604a provided in the dust separating inner cylinder 604 as indicated by the arrow 612 of the second flow path. . Since the airflow of the second flow path does not pass through the dust 609 accumulated in the dust collecting chamber 603, the airflow 611 of the first flow path is gradually blocked even if the dust 609 is accumulated in a large amount, and the accumulation of dust in the first flow path is small. Therefore, the air which is separated by the centrifugal separation can be continuously flowed in, so that the attraction of the entire cleaner can be continued. On the other hand, the dust deposited on the back filter 605 is compressed by the attraction force.

The dust that cannot be separated by the centrifugal separation of the cyclone separation unit 602 and the fine dust that cannot be collected by the back filter 605 are trapped by the upper filter 606. The air passing through the upper filter 606 is drawn into the electric blower 202. The upper filter 606 is formed with a filter member that is folded into a pleat shape (mountain pleat) in a frame having a substantially circular cross-sectional shape in order to enlarge the ventilation area.

Further, in the same manner as in the first embodiment, the through hole 604a of the dust separation inner cylinder 604 and the through hole of the separation wall 605 may be replaced by a mesh member made of metal, nylon, polyester or the like by coating or insert molding. Further, it is also possible to suppress the growth of bacteria by a metal having an antibacterial action (for example, silver) or a metal (for example, stainless steel) containing or coated with an antibacterial substance (for example, silver).

In the vacuum cleaner that performs the above-described operation, when the user discards the accumulated dust 609, the dust collecting device 601 is removed from the cleaner body 101 as shown in FIG. 7, and the opening and closing cover 610 is opened to discharge the accumulated dust. Ai 609. The opening and closing cover 302 is a substantially cylindrical central shaft 615 that is provided in the dust collecting portion 603 in a substantially parallel direction.

Therefore, in this embodiment, since substantially the entire dust accommodating portion 616 shown in Fig. 6 is opened, the dust deposited in the dust accommodating portion 512 can be smoothly discharged and discarded.

Further, as shown in FIG. 6, since the separation wall 605 is provided over the center axis 615, the opening portion 621 is not the largest area, but the dust is collected by the operator's hand because the dust chamber 512 is opened. As is well known, the phenomenon of getting stuck in the dust collecting chamber, the inner wall of the cyclone separation portion, and the narrow road portion can be eliminated.

As described above, according to the embodiment, even if the dust collecting device is downsized, the area of the opening (opening and closing cover portion) for discharging the deposited dust can be increased, and the discharge of so-called dust can be easily performed. .

Moreover, the first flow path through which the air on the outer peripheral side containing a large amount of dust is passed by the centrifugal separation is passed, and the air on the inner peripheral side in which the dust is small passes through the second flow path. Since the airflow in the second flow path does not pass through the dust accommodating portion, the dust accumulated in the dust collecting chamber does not pass through, and even if a large amount of dust accumulates, the airflow in the first flow path is gradually blocked, because the centrifugal separation can be utilized. The inhalation of the separated dust continues to flow in, so that the attraction of the entire vacuum cleaner can be continued. Therefore, there is an effect that the attractive force of the entire cleaner can be continued.

Moreover, since the accumulated dust is compressed by the suction force, it has the effect of accumulating more dust in the cyclone chamber. fruit.

Moreover, as long as the opening cover portion is formed of a transparent member, there is an effect that dust accumulated in the front surface of the cleaner body is easily recognized.

Further, 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 easier effect of eliminating the so-called dust.

In addition, since the dust transfer port of the minimum flow path sectional area of the dust-collecting room can be opened, it is easy to remove even if the dust overflows from the dust collecting chamber and is caught in the normal feeding port. dust.

[Example 3]

In the following, the third embodiment of the present invention will be described in detail with reference to the drawings. However, since the cleaner body has basically the same configuration as that of the first embodiment, the dust collecting device will be described below.

Fig. 8 is a cross-sectional view showing a portion of a cyclone type dust collecting device 801 according to a third embodiment of the present invention.

In FIG. 8, the dust collecting device 801 is composed of a cyclone separating portion 802 that separates dust and air by centrifugal force generated by rotating dust-containing air, and a dust collecting chamber 803 that collects and separates dust.

As shown in the figure, a dust collecting chamber 803 which is adjacent to the lower side of the cyclone separating portion 802 and collects the separated dust is disposed. The cyclone separation unit 802 and the dust collecting chamber 803 are integrally formed so as not to be separable. At this time, since the dust collecting chamber 803 is located below the cyclone separating portion 802, it is removed. At this time, the cyclone separation unit 802 is processed integrally with the dust collection chamber 803.

In the vicinity of the center of the cyclone separation chamber 817 constituting the cyclone separation unit 802, a cylindrical dust separation inner cylinder 804 that is attached to the separation wall 818 that forms the cyclone separation chamber 817 is provided, and the cylinder of the inner cylinder 804 is separated by the dust. A plurality of through holes 804a are provided on the side.

In the dust collecting chamber 803, a dust accommodating portion 816 in which dust and air separated in the cyclone separating portion 802 flows in is formed. The dust accommodation portion 816 and the cyclone separation chamber 817 are partitioned by an umbrella-shaped separation wall 805 fixed to the dust separation inner cylinder 804. Further, an annular dust-like passage 813 is formed between the separation wall 805, the cyclone separation chamber 817, and the wall surface on which the dust accommodation portion 816 is formed.

The opening 820 of the umbrella-shaped separating wall 805 opened in the dust accommodating portion 816 may be provided with a back filter or the like to supplement the dust.

The dust accommodating portion 816 and the cyclone separation chamber 817 are divided at a portion of the dust-like feed path 813 as indicated by the dividing line 815, and are connected by a hinge mechanism 814. Therefore, the two sides can be engaged and disengaged by the hook mechanism by the configuration on the opposite side of the hinge mechanism 814. Therefore, when the hook mechanism is released, since the dust accommodating portion 816 is rotatable by the hinge mechanism 814 as a fulcrum, the dust accommodating portion 816 is formed to hang down in the direction of gravity and open.

The air that is sucked in from the hose mounting opening 201 and contains dust flows into the cyclone chamber 817 from the inflow port 807, and the dust-containing air flows through the dust-like path 813 to the dust containing portion 816, through the opening 820 of the separating wall 805, The inside of the dust separating inner cylinder 804 flows to the filter housing Department 819.

Therefore, the dust 809 is piled up in the dust collecting portion 816 to collect dust. At this time, the dust collecting performance can be improved by providing the back filter in the opening portion 820.

Moreover, the dust and air which cannot be separated in the cyclone chamber 817 flow to the filter accommodating portion 819 through a plurality of through holes 804a provided in the cylindrical side surface of the dust separating inner cylinder 804.

The filter accommodating portion 819 is connected to the dust separating inner cylinder 804, and dust and air that cannot be separated in the cyclone separating portion 802 flow into the air to collect dust in the rear filter 806.

One of the hinge mechanisms 814 is fixed to the side surface of the cyclone separation chamber 817, and the other opening and closing cover 810 of the other side of the hinge mechanism 814 is also rotatably supported. Therefore, the side surface portion of the dust accommodation portion 816 corresponds to the side surface portions of the dust accommodation portions 512 and 616 shown in the first embodiment and the second embodiment.

Further, when the opening/closing cover 810 is opened, dust deposited on the dusty path 813 can be removed.

As described above, the air that contains the dust is sucked into the dust collecting device 801 by the suction body 107, the extension pipe 106, and the hose 103 by the suction force generated by the electric blower 202. The air that has flowed into the dust is rotated in the cyclone separation portion 802 by the opening 807 of the opening so as to have a rotational component along the inner circumferential surface of the cyclone separation portion 802, and is separated by centrifugal separation as shown by the arrow 808. The role of separating air and dust.

The air on the outer peripheral side contains a large amount of dust due to the centrifugal separation, and the air on the inner side of the opposite side has less dust. The dust-containing air after the centrifugal separation is as shown by the arrow 811, and is deposited in the dust collecting chamber 816 by the dust-like passage 813 of the separation wall 805 and the inner circumferential surface of the cyclone separation portion 802.

On the other hand, the air having less dust by the centrifugal separation is separated from the plurality of through holes 804a provided in the dust separation inner cylinder 804 by the arrow 808 and the arrow 812. The inside of the inner cylinder 804 flows into the upper filter 806. Since the airflow of the arrow mark 808 does not pass through the accumulated dust 809 in the dust collecting portion 816, the dust is attracted, and even if the dust 800 is accumulated in the dust receiving portion 816, the suction force of the entire cleaner can be continued.

The small and light dust that cannot be separated by the centrifugal separation of the cyclone separation unit 802 is trapped by the upper filter 806. The air passing through the upper filter 806 is drawn into the electric blower 202. The upper filter 806 is formed with a filter member that is folded into a pleat shape (mountain pleat) in a frame having a substantially circular cross-sectional shape in order to enlarge the ventilation area.

Further, in the same manner as in the first embodiment, the through hole of the dust separating inner cylinder 804 may be replaced by a mesh member made of metal, nylon, polyester or the like by coating or insert molding. Further, it may be composed of a metal having an antibacterial action (for example, silver), a metal containing or coated with an antibacterial substance (for example, silver) (for example, stainless steel), and the growth of the bacteria can be suppressed.

When the user wants to discard the accumulated dust 809, it is as shown in Figure 9. The dust collecting device 801 is removed from the cleaner body 101, and the opening and closing cover 810 is opened to discharge the accumulated dust.

In the vicinity of the dust transfer path 813 formed between the separation wall 805 and the cyclone separation chamber 817 and the inner peripheral surface of the dust accommodation portion 816, the dust is likely to be caught and accumulated due to the narrow passage area. On the other hand, since the opening cover 810 is configured to open in the vicinity of the dusty path 813, the dust deposited on the dusty path 813 is easily discharged.

In the present embodiment, the dividing line 815 of the opening and closing cover 810 and the cyclone separating chamber 817 is substantially flush with the bottom surface portion of the opening and closing cover 810. Alternatively, the dividing line 821 shown by a broken line may be used to form the inclined direction. At this time, if part of the dusty portion is provided with the narrowest portion near the road 813, it is also easy to discharge dust.

As described above, according to the embodiment, since the dusty path 813 of the minimum flow path sectional area among the garbage transfer paths of the dust collecting chamber 803 can be opened, even if the dust overflows from the dust collecting chamber 803, it is stuck in the dust. At 813, dust can also be easily removed.

312‧‧‧Clamping and clamping department

302B‧‧‧ end face

311‧‧‧ fixture

303‧‧‧Press the button

512‧‧‧Dust storage room

509‧‧‧dust

305‧‧‧ upper face

516‧‧‧Separation wall

302‧‧‧Open and close cover

502‧‧‧Cyclone dust chamber

510‧‧‧ check valve

518‧‧‧Connected Road Formation Department

501‧‧‧Cyclone Separation Department

309‧‧‧Hinged mechanism

503‧‧‧Cyclone separation room

306‧‧‧The lower part

519‧‧‧Air flow deflection

514‧‧‧Dust separation inner cylinder

515‧‧‧through holes

511‧‧‧ center axis

506‧‧‧ arrow print

304‧‧‧Air inlet

513‧‧‧Separate wall end face

310‧‧‧Filter accommodating department

508‧‧‧ arrow print

507‧‧‧ arrow print

505‧‧‧Back filter

504‧‧‧Back filter

Claims (6)

A vacuum cleaner comprising: a vacuum cleaner body including an electric blower; and a dust collector for detachably attaching and detaching the vacuum cleaner body, wherein the dust collecting device includes at least a cyclone separating portion and a dust accommodating portion therein In the dust collecting chamber, an opening for discharging dust deposited in the dust accommodating portion is provided at a side surface portion of the dust collecting chamber, and an opening and closing cover for opening and closing the opening portion is provided. A vacuum cleaner comprising: a vacuum cleaner body including an electric blower; and a dust collector for detachably attaching and detaching the vacuum cleaner body, wherein the dust collecting device includes at least a substantially cylindrical cyclone separation portion and a vacuum cleaner A dust collecting chamber having a dust accommodating portion is provided, and an opening for discharging dust deposited in the dust accommodating portion and an opening and closing cover for opening and closing the opening are provided in a side surface portion of the dust collecting chamber, and the opening and closing cover is attached The hinge mechanism for mounting is provided in the aforementioned cyclone separation portion. A vacuum cleaner comprising: a vacuum cleaner body including an electric blower; and a dust collector for detachably attaching and detaching the vacuum cleaner body, wherein the dust collecting device includes at least a substantially cylindrical cyclone separation portion and a vacuum cleaner a dust collecting chamber including a dust accommodating portion having a substantially cylindrical portion, and an opening portion for discharging dust and an opening and closing lid for opening and closing the opening portion are provided on a side surface portion of the substantially cylindrical portion having the dust collecting chamber. Connecting the side surface portion of the cyclone separation portion to the opening and closing cover by a hinge mechanism One end is rotatably supported by the opening and closing cover. The vacuum cleaner according to any one of the first to third aspects of the present invention, wherein the inner peripheral surface of the dust-receiving portion of the opening and closing cover is provided with a flow of air containing dust from the cyclone separation portion. The communication path forming portion. The vacuum cleaner according to any one of the first to third aspects of the present invention, wherein the inner peripheral surface of the dust-receiving portion of the opening and closing cover is provided with a flow of air containing dust from the cyclone separation portion. The communication path forming portion and the air flow deflecting portion that is disposed in the direction of the back filter side of the dust receiving portion in the flow direction of the air containing the dust introduced from the communication path forming portion. The vacuum cleaner according to any one of the first aspect, wherein the cyclone separation unit and the dust collecting chamber are detachably configured, and the cyclone separation unit is placed on the cleaner body. The dust collecting chamber is located on the upper side of the cyclone separating portion.