JP2004255119A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a small-size and easy-to-use vacuum cleaner having a cyclone separation type dust collection part. <P>SOLUTION: The cyclone separation cylinder 104 catching the dust by centrifugal separation and the dust collection case 105 having a first auxiliary filter 106 on the inside are detachably aligned and installed in a lower case 101 of a cleaner body 1. An inner cylinder 131 is composed of a cylinder part 134, a partition wall 132 spirally wound around the cylinder part 134 and a guide wall 137 connecting an inlet pipe 115 to the cylinder part 134. The exhaust of the cyclone separation cylinder 104 and the exhaust of the dust collection case 105 are joined together and pass in an electric blower. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vacuum cleaner.
[0002]
[Prior art]
A general vacuum cleaner guides dust-containing air sucked from a suction opening to a cleaner body, removes dust through a dust collecting portion in the cleaner body, and exhausts air cleaned by the dust removal to the outside of the cleaner body. Configuration. The dust collection unit is configured to capture and remove dust by filtration with a paper filter, or to capture and remove dust by centrifugation using a cyclone separator.
[0003]
A vacuum cleaner provided with a cyclone-separated dust collector is described in Patent Document 1. The dust collecting section in this vacuum cleaner has a configuration in which dust is captured and removed by centrifugal separation using a single cyclone separation tube.
[0004]
In addition, as a cyclone-separated dust collecting unit in a vacuum cleaner, the dust separation device described in Patent Document 2 has a cyclone separation tube having a double structure of an outer separation tube and an inner separation tube, and the inside of the outer separation tube. It is proposed that centrifugal separation removes coarse dust and removes fine dust by centrifugation in an inner separation cylinder.
[0005]
[Patent Document 1]
JP 2001-29288 A
[Patent Document 2]
Japanese Patent Publication No. 10-511880
[0006]
[Problems to be solved by the invention]
It is important that vacuum cleaners used in ordinary households are small and easy to handle, and it is necessary to reduce the size of the dust collecting section and simplify the operation of disposing of the captured dust.
[0007]
Since the dust collecting portion that captures dust by one cyclone separation tube captures coarse and fine dust together, the fine dust is easily scattered when the captured dust is discarded, and the dust disposal operation is troublesome. . Further, if it is attempted to improve the dust capturing (dust collection = dust removal) performance, the cyclone separation cylinder becomes long and large.
[0008]
The cyclone separation type dust separation device (dust collection unit) having the inner and outer double separation cylinder structure is configured by integrally combining the outer separation cylinder and the inner separation cylinder, so that it can be configured in a small and easy-to-handle form. Have difficulty. In general household use, a large amount of coarse dust is captured, and the frequency of operation for discarding the coarse dust increases. However, the dust collecting portion of the inner and outer double separation tube structure captures the coarse dust. It is not possible to take out only the outer separation cylinder and dispose only the coarse dust.
[0009]
One object of the present invention is to propose a vacuum cleaner having a cyclone-separated dust collector that is small and easy to handle.
[0010]
Another object of the present invention is to propose a vacuum cleaner provided with a cyclone-separated dust collecting unit having a small size and high dust capturing (dust collecting) performance.
[0011]
It is still another object of the present invention to provide a vacuum cleaner having a cyclone-separated dust collector that can reliably hold captured fine dust without scattering.
[0012]
[Means for Solving the Problems]
The present invention provides an inlet section through which dust-containing air flows at a lower portion of a separation chamber for separating dust from dust-containing air, and a communication port to a dust collecting case placed on a side surface of the separation chamber at an upper portion of the separation chamber. In the vacuum cleaner, a guide plate for forming a flow from bottom to top is provided inside the separation chamber.
[0013]
Further, in a vacuum cleaner provided with an inlet portion through which dust-containing air flows into a lower portion of the cyclone separation tube and a communication port to a dust collection case placed on a side surface of the cyclone separation tube at an upper portion of the cyclone separation tube, It is characterized in that a spiral partition is provided in the cylindrical portion of the inner cylinder provided inside the cyclone separation cylinder.
[0014]
In addition, the spiral partition is disposed above the communication port of the cyclone separation tube inlet.
[0015]
The cyclone separator is provided with a cyclone separator for lowering the cyclone separator for removing dust-containing air by centrifugal separation and an inlet for flowing dust-containing air to the back side of the cleaner body, and an exhaust port for exhausting the dust-removed air from the cyclone separator. Provided at the lower part of the cylinder, provided at the upper part of the cyclone separation cylinder, a communication port to a dust collection case placed on the side of the cyclone separation cylinder, a built-in filter in the dust collection case, and air passing through the filter, In the vacuum cleaner having a flow path configuration in which the air flowing out from the exhaust port merges with the back side of the vacuum cleaner main body, the cyclone separation tube is provided at a left and right end side of the vacuum cleaner main body. Characterized in that an inlet portion of the airbag is arranged.
[0016]
Further, the exhaust port of the cyclone separation tube and the air that has passed through the first filter incorporated in the dust collection case form a second filter communicating therewith between the electric blower provided downstream of the cyclone separation tube. In addition, the depth of the second filter provided in the vicinity of the exhaust port of the cyclone separation tube in the depth direction of the second filter in the vicinity of the first filter is provided. The feature is that it is longer than that of.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
A first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an external perspective view of a vacuum cleaner showing one embodiment of the present invention. FIG. 2 is a perspective view of the cleaner body. FIG. 3 is a perspective view showing a state in which an upper lid of the cleaner body is opened. FIG. 4 is a perspective view showing a state where the dust collection case of the cleaner body is removed. FIG. 5 is a perspective view showing a state where the dust collection case and the cyclone separator of the cleaner body are removed. FIG. 6 is a horizontal plan view with the upper lid and the upper case removed. FIG. 7 is a schematic diagram showing the flow of air in the cleaner body.
[0018]
As shown in FIG. 1, the vacuum cleaner according to this embodiment includes a cleaner main body 1, a hose 2, a hand operation pipe 3, an expansion joint pipe 4, and a suction port 5, and the cleaner main body 1 and the hand operation pipe 3 are connected to each other. A hose 2 is used, and a suction port 5 is connected to the hand-operated pipe 3 via an expansion joint pipe 4 for use.
[0019]
The cleaner main body 1 has a built-in electric blower (to be described later), and draws in dust from the suction flow by the suction force of the blower by the suction force of the electric blower, and sucks the dust-containing air into the expansion joint pipe 4. Then, the air is sucked into the cleaner body 1 via the operation tube 3 and the hose 2, and the dust is removed (collected) by a cyclone-separated dust collector (described later), and then exhausted outside the machine.
[0020]
As shown in FIGS. 2 to 6, the vacuum cleaner main body 1 has a cyclone separation cylinder 104 and a dust collecting case 105 detachably mounted between a lower case 101 and an upper lid 102, and a lower part between the lower case 101 and the upper case 150. A second auxiliary filter 112, an electric blower 107, and a cord reel 110 are built therein.
[0021]
As shown in FIG. 7, this cleaner body 1 separates dust by centrifugal action by flowing dust-containing air through a hose 2 from an inlet pipe 115 into a cyclone separation tube 104 and turning the same. The dust is conveyed to the dust collecting case 105 through the communication port 117 of the, and the exhaust from the cyclone separation tube 104 passes through the inner tube 131 and is exhausted to the exhaust port 120 provided at the lower part of the cyclone separation tube 104. Further, a part of the air flows into the dust collecting case 105 and the dust is captured by the first auxiliary filter 106. The exhaust gas from the dust collecting case 105 is sucked into the electric blower 107 through the second auxiliary filter 112 from the cyclone outlet 146 behind the first auxiliary filter 106. At this time, the exhaust gas from the cyclone separation tube 104 also passes through the communication passage 145 from the exhaust port 120, flows out of the cyclone outlet 146, and is sucked into the electric blower 107 together with the exhaust gas from the dust collecting case 105. Exhaust air from the electric blower 107 is passed through a filter 108, partly through an exhaust passage (not shown), and partly to a cord reel 110 to cool them, and then discharged outside the machine.
[0022]
The lower case 101 includes running wheels 208 and guide wheels (not shown) for running the cleaner main body 1 on the floor, and the cyclone separation cylinder 104 and the dust collecting case 105 are vertically arranged independently and detachably. Then, the second auxiliary filter 112 is arranged side by side.
[0023]
The upper lid 102 is rotatably attached to the upper rear portion of the upper case 150, and in a closed state, the inlet pipe 115 of the cyclone separation tube 104 and the hose connection port 116 abut against each other in an airtight state, and the communication port 117 of the cyclone separation tube 104. And the upper opening 118 of the dust collecting case 105 is urged so as to contact in an airtight state, and the exhaust port 120 at the lower part of the cyclone separation cylinder 104 and the communication passage 145 provided at the lower part of the dust collecting case 105 are airtight. In this state, the air outlet 146 and the filter case 113 in which the second auxiliary filter 112 is stored are urged so as to be in an airtight state. The axial direction of the cyclone separation cylinder 104 is oriented in the vertical direction, but may be inclined not in the vertical direction but in an oblique direction.
[0024]
By holding the handle 123 on the upper part of the dust collecting case 105, the dust collecting case 105 can be taken out, and the dust in the dust collecting case 105 is discarded by opening the first auxiliary filter 106 in the dust collecting case 105. .
[0025]
Further, when the inside of the cyclone separation tube 104 becomes dirty, the cyclone separation tube 104 can be disassembled and cleaned by holding the upper handle 125 and lifting it from the lower case 101.
[0026]
Here, the inner surface of the cyclone separation cylinder 104 or the inner surface of the dust collecting case 105 is subjected to a clear UV curing type coating treatment. For this reason, dust flows into the cyclone separation tube 104, and when the dust is centrifugally separated and flows into the dust collection case 105, dust is deposited on the surface inside the cyclone separation tube 104 and the inside surface of the dust collection case. Even in the case of collision and rubbing, the surface is hardly damaged and dirt is hardly adhered, and the abrasion resistance and stain resistance can be improved. Therefore, even when the outer cylinder 135 of the cyclone separation cylinder 104 and the dust collecting case 105 are made of a transparent plastic material, the degree of dust accumulation can be visually checked.
[0027]
Further, by forming the cyclone separation cylinder 104 and the dust collection case 105 using an antistatic resin agent or applying an antistatic agent to the surface, dust adheres to the cyclone separation cylinder 104 and the dust collection case 105. And the number of times of cleaning can be reduced.
[0028]
Next, the arrangement inside the vacuum cleaner main body 1 will be described with reference to FIG. FIG. 6 is a plan view in a state where the upper case 150 and the upper lid 102 are removed. The hose connection port 116 is located at the center in the width direction of the main body 1 when viewed from above, and is disposed on the front surface of the main body 1. The center axis of the cyclone separation tube 104 is shifted from the center in the width direction, and the inlet pipe 115 and the hose connection port 116 that allow air to flow in substantially the tangential direction of the cyclone separation tube 104 are arranged so as to be linear. I have. The dust collecting case 105 is installed on the opposite side of the width direction of the center axis of the cyclone separation tube 104. Similarly, the electric blower 107 is installed on the side opposite to the center axis of the cyclone separation cylinder 104 in the width direction, and a second auxiliary filter 112 is provided on the front surface thereof. The code reel 110 is installed beside the electric blower 107, and the center axis of the cyclone separation tube 104 is installed in the same direction in the width direction.
[0029]
With such an arrangement, the length of the main body can be shortened, and a small size and light weight can be achieved. Further, since there is no need to provide a bend or the like at the inlet of the cyclone separation tube 104, the effect of reducing loss can be obtained.
[0030]
Here, the direction in which the dust centrifugally separated by the cyclone separation tube 104 flows out from the cyclone separation tube 104 through the communication port 117 is the turning direction in the cyclone separation tube 104 and the tangential direction of the cyclone separation tube 104. is there. For this reason, in the present embodiment, both the communication port 117 of the cyclone separation cylinder 104 and the upper opening 118 of the dust collection case 105 communicating with the communication port 117 open and close the first inside of the dust collection case 105. It can be arranged on the front side of the vacuum cleaner main body 1 farthest from the auxiliary filter 106 (on the hose connection port 116 side). Here, the dust centrifugally separated by the cyclone separation tube 104 accumulates from the vicinity of the first auxiliary filter 106 that opens and closes, and forms the communication port 117 of the cyclone separation tube 104 and the dust collection case 105 communicating with the communication port 117. Since the dust is sequentially deposited on the upper opening 118 side, it is difficult for the dust to close the communication port 117 and the upper opening 118 until the dust collection case 105 is filled with the dust. That is, the volume of the dust collecting case 105 can be effectively used.
[0031]
Here, details of the cyclone separation cylinder 104 and the dust collection case 105 will be described with reference to FIGS. 8 is an external perspective view of the cyclone separating cylinder 104, FIG. 9 is an external perspective view of the dust collecting case 105, FIG. 10 is a sectional view taken along line AA of FIG. 6, and FIG. FIG. 12 is a cross-sectional view including a communication port 117 between the cyclone separating cylinder 104 and the dust collecting case 105. FIG. 13 is a side view of the dust collecting case 105 when viewed from the exhaust side. FIG. 14 is a perspective view of the inner cylinder 131. It is.
[0032]
In the outer cylinder 135 of the cyclone separation cylinder 104, an inlet pipe 115 serving as an air intake thereof is provided below the center of the length of the cyclone separation cylinder 104 in the central axis direction. It is installed so that air can enter in a substantially tangential direction. A communication port 117 is provided above the center of the cyclone separation cylinder 104 to allow air to flow into the dust collection case 105 together with dust. An inner cylinder 131 is provided below the cyclone separation cylinder 104, and is connected to the lower exhaust port 120. The inner cylinder 131 includes a cylindrical portion 134, a partition wall 132 spirally wound around the cylindrical portion 134, and a guide wall 137 connecting the inlet tube 115 and the cylindrical portion 134. The cylindrical portion 134 includes a mesh filter 133. The resin fiber net is integrally formed with the cylindrical portion 134 by insert molding. As shown in FIG. 10, the mesh filter 133 may be formed in a cylindrical portion on the side surface, or may be formed by combining the upper plane of the cylindrical portion and the cylindrical portion on the side surface. Here, the mesh filter 133 is not provided on the entire circumference of the cylindrical portion on the side surface of the inner cylinder 131, and the mesh filter 133 and the opening are not provided at about 90 degrees near the inlet pipe 115. For this reason, even if fine dust such as hair flows in from the inlet tube 115, it can be prevented from directly hitting the mesh filter 133, and can be prevented from being stuck and entangled. Further, even when sharp dust such as a needle flows in from the inlet pipe 115, the dust does not directly hit the mesh filter 133, so that the mesh filter 133 is broken and dust is prevented from flowing out.
[0033]
Further, since the mesh filter 133 receives a force inward of the inner cylinder 131, a rib 136 of the inner cylinder may be provided on the inner diameter side of the mesh filter. Here, when the antistatic treatment is performed on the screen filter 133, dust adhering to the screen filter 133 is easily separated, and cleaning can be easily performed.
[0034]
In addition, the outer tube 135 of the cyclone separation tube 104 is provided with an inlet pipe 115 serving as an air intake port below the center of the length of the cyclone separation tube 104 in the central axis direction. The communicating hose connection port 116 can also be disposed below the center of the length of the cyclone separation tube 104 in the central axis direction. For this reason, the hose connection port portion 116 can be disposed at a lower portion of the cleaner main body 1. Therefore, when the cleaner main body 1 is routed by the operation pipe 3 through the hose 2, the cleaner The main body 1 does not easily fall over and can be stably laid.
[0035]
Further, since the hose connection port 116 can be disposed below the cleaner main body 1, there is no need to dispose the hose connection port 116 on the upper lid 102, and the dust collection case 105 and the cyclone separation cylinder 104 can be disposed. When taking out from the cleaner body 1, the upper lid 102 can be easily opened and closed even with the hose 2 attached.
[0036]
Here, the partition 132 of the inner cylinder 131 is spirally lifted upward from the winding start position 138 so as to lift the air flow in the cyclone separation cylinder 104 upward. For this reason, the dust that has flowed into the cyclone separation tube 104 from the inlet pipe 115 rises along the spiral partition 132, turns inside the cyclone separation tube 104, is centrifuged, and the communication port 117, the upper opening It is conveyed to the dust collecting case 105 through 118. As described above, since the partition wall 132 is spirally lifted upward, dust is given a strong action to rise in the cyclone separation cylinder 104, and a low air volume of 1 cubic meter or less per minute by a DC cordless vacuum cleaner or the like. Even an operating vacuum cleaner can transport dust to the dust collection case 105. Here, since the axial direction of the cyclone separation tube 104 is not horizontal, the dust having a high specific gravity that has flowed into the cyclone separation tube 104 falls during the turn and cannot fall during the turn at the time of the low airflow described above. It is possible to prevent the collision with the separation cylinder 104 many times, and it is possible to prevent the cyclone separation cylinder 104 from being damaged or damaged.
[0037]
The height H of the guide wall 137 is larger than the height L of the inlet pipe 115. For this reason, the air flow flowing from the inlet pipe 115 and the air flow swirled in the cyclone separation tube 104 are less likely to interfere and mix with each other. Can be reduced. In addition, if the cross-sectional shape of the inlet pipe 115 is a substantially rectangular shape having a rounded corner, when air flows from the inlet pipe 115 into the cyclone separation tube 104, the wall of the outer tube 135 and the partition wall of the inner tube 131. Since it is possible to flow along the inlet 132, it is possible to reduce the flow loss due to the rapid expansion when flowing into the cyclone separation tube 104 as compared with the case of the inlet pipe 115 having a circular cross section.
[0038]
When the cross-sectional shape of the inlet pipe 115 is substantially rectangular as described above, the cross-sectional shape of the connecting portion 2a of the hose 2 is changed from the circular shape on the hose side to the substantially rectangular shape which is the cross-sectional shape of the inlet pipe 115. By gradually changing the shape, the loss due to the separation of the flow can be suppressed and the flow can flow into the cyclone separation tube 104.
[0039]
The cyclone separation cylinder 104 is separated into an outer cylinder 135, an inner cylinder 131, and a member forming the exhaust port 120, each of which is detachably fitted, and each member is in contact with the airtight. Note that an elastic seal member may be interposed between the contact portions in order to realize the contact in an airtight state. The cleaning of the cyclone separation tube 104 can be performed by separately separating the members forming the outer tube 135, the inner tube 131, and the exhaust port 120.
[0040]
The dust collecting case 105 is provided with an upper opening 118 at a position facing the communication port 117 of the cyclone separating cylinder 104, and both are kept in an airtight state and abut on each other. A first auxiliary filter 106 attached to a filter frame 140 is provided on the exhaust side of the dust collection case 105. The filter frame 140 has openings on both sides thereof and is provided so as to rotate about a shaft provided at a lower portion. When the filter frame 140 is closed, the main case 141 of the dust collecting case 105 and the filter frame 140 are closed. Are in contact with each other in an airtight state.
[0041]
At the time of dust disposal, the user holds the handle 123 on the upper part of the dust collecting case 105, lifts the dust collecting case 105, pushes the lever 142 integrated with the clamp unit holding the filter frame 140, and opens the filter frame 140. . The cleaning of the first auxiliary filter 106 can be performed by taking out the first auxiliary filter 106 from the filter frame 140 and washing it.
[0042]
For the first auxiliary filter 106, it is desirable to use a sponge made of foamable urethane of a washable material, a washable nonwoven fabric, a washable filter paper material, or the like.
[0043]
When the antistatic treatment is performed on the first auxiliary filter 106 and the second auxiliary filter 112, dust attached to the first auxiliary filter 106 and the second auxiliary filter 112 can be easily separated and cleaning can be easily performed. .
[0044]
A communication passage 145 and a cyclone outlet 146 are integrally provided below the dust collecting case 105. Therefore, the dust collecting case 105 is divided into a main case 141, a communication passage 145, and a cyclone outlet 146 at a lower portion of the filter frame 140. Has become. Further, it is also in contact with the exhaust port 120 of the cyclone separation tube 104 while keeping airtightness.
[0045]
The filter frame 140 is in air-tight contact with a filter case 113 provided in front of the electric blower 107 and containing the second auxiliary filter 112. In order to realize the airtight contact described above, an elastic seal member may be interposed between the contact portions.
[0046]
When the electric blower 107 is operated, dust-containing air flows into the cyclone separation tube 104 from the inlet pipe 115 of the cyclone separation tube 104 due to the suction force of the electric blower 107 when the electric blower 107 is operated. The dust is centrifuged by being swirled in 104, lifted upward in the cyclone separation tube 104, and transported to the dust collection case 105 side. The air from which dust has been removed flows from the inner cylinder 131 of the cyclone separation cylinder 104 to the exhaust port 120 through the mesh filter 133. The mesh filter 133 functions to prevent dust such as fiber dust and paper from blowing through.
[0047]
Air from the exhaust port 120 flows to the second auxiliary filter 112 via the communication passage 145 and the cyclone outlet 146.
[0048]
Air containing dust from the communication port 117 of the cyclone separation tube 104 flows into the dust collecting case 105 through an upper opening 118 provided at an upper portion of the dust collecting case 105, and the dust in the air is removed by the first auxiliary filter 106. It is blocked and accumulates just before the first auxiliary filter 106. The air that has passed through the first auxiliary filter 106 flows to the second auxiliary filter 112 side.
[0049]
Although the dust removal performance of the first auxiliary filter 106 is determined by the capacity of the filter material, it is preferable that the first auxiliary filter 106 be provided with the ability to separate dust of the order of μm. However, if the dust-removing ability is set too high, clogging tends to occur quickly. Therefore, it is desirable to determine this in consideration of the overall dust-removing ability.
[0050]
Most of the dust that has entered the cleaner body 1 is collected in the dust collecting case 105. Therefore, dust can be removed by removing the dust collecting case 105 from the cleaner body 1 and removing the dust. It is desirable that the trash is discarded before dust overflows from the dust collecting case 105. For this reason, as shown in FIG. 9, the dust collecting case 105 is provided with a dust disposal line 155 at a position opposing the upper opening 118, so that the user can dispose of the dust with reference to this. The garbage dump line 155 is not oriented horizontally or vertically. When garbage accumulates in the dust collecting case 105, the portion close to the upper opening 118 is filled with garbage at last, so that the garbage is oblique because of the accumulation of garbage. It is set to incline.
[0051]
In the present embodiment, the flow of air in the cleaner body 1 is divided into two paths as shown in FIG. 7, so that the dust in the dust collecting case 105 has a pressure difference in the air flow direction. This pressure difference causes dust to be constantly compressed. Since the pressure difference increases as the amount of accumulated dust increases, the compression amount increases as the amount of dust increases. The dust in the dust collecting case 105 accumulates in a layer before the first auxiliary filter 106, and fine dust accumulates together. For this reason, the dust is mixed between the fiber dusts, so that there is also obtained an effect that the dust hardly flies when the garbage is discarded.
[0052]
Furthermore, since the amount of air flowing through the exhaust port 120 of the cyclone separator 104 is smaller than when air does not pass through the dust collecting case 105, the resistance of the cyclone separator 104 can be reduced. Therefore, it has a feature that the suction power of the vacuum cleaner can be further increased.
[0053]
Further, in the cyclone separation tube 104, dust-containing air flows into the cyclone separation tube 104 from the inlet pipe 115 of the cyclone separation tube 104 and turns inside the cyclone separation tube 104 to centrifugally separate the dust. It is lifted upward in the cyclone separation tube 104 and transported to the dust collection case 105 side. At this time, since there is a flow of air exhausted from the first auxiliary filter 106 from the cyclone separation tube 104 through the dust collection case 105, the dust centrifugally separated by the cyclone separation tube 104 is Since the dust easily flows into the dust collecting case 105 and the dust is instantaneously separated toward the dust collecting case 105, the dust collecting efficiency can be increased.
[0054]
Further, the dust that has been centrifuged in the cyclone separation tube 104 and conveyed to the dust collection case 105 is unlikely to flow back to the cyclone separation tube 104, so that the dust conveyed to the dust collection case 105 re-scatters. The dust collection efficiency can be increased without performing.
[0055]
Further, when dust adheres to the mesh filter 133 of the inner cylinder 131, the amount of air blown from the exhaust port 120 for exhausting the air removed from the cyclone separation cylinder 104 decreases. The air volume of the dust collecting case exhaust port 144 which is the exhaust port from the dust collecting case 105 that has passed through increases. Therefore, the dust attached to the mesh filter 133 of the inner cylinder 131 is transported to the dust collecting case 105.
[0056]
In addition, the cross-sectional area of the dust-collecting case exhaust port 144, which is the exhaust port from the dust-collecting case 105 that has passed through the first auxiliary filter 106, is exhausted from the dust-collecting case 105 through the air that has been dust-removed from the cyclone separation tube 104. Larger than the cross-sectional area of the exhaust port 120. Therefore, the cross-sectional area of the first auxiliary filter 106 can be increased, and the flow velocity of the air passing through the first auxiliary filter 106 can be reduced. For this reason, the blow-through of dust from the first auxiliary filter 106 can be reduced. Furthermore, since the pressure loss when air passes through the first auxiliary filter 106 can be reduced, the suction power of the vacuum cleaner can be further increased.
[0057]
Here, the downstream end 119 of the communication port 117 of the cyclone separation cylinder 104 is formed into an R shape, or a member having a good sliding property (low friction coefficient) is attached, so that dust at the downstream end 119 can be removed. It is possible to prevent scarring. When the upper side of the downstream end portion 119 is inclined toward the first exhaust port 144 which is an exhaust port from the dust collecting case 105 (when the opening of the communication port 117 is wider at the upper side), Even if dust is caught on the downstream end 119 of the communication port 117, the dust moves to the upper side of the downstream end 119, and the air flows from the cyclone separation cylinder 104 to the dust collection case 105 during this movement. Thereby, it can be easily peeled off from the downstream end 119 of the communication port 117.
[0058]
Further, when the amount of dust accumulated in the dust collecting case 105 increases, the resistance when passing through the dust collecting case 105 increases, so that the flow rate flowing through the dust collecting case decreases. Therefore, when there is a lot of dust that easily generates an odor, the amount of air passing through the portion is reduced, and there is also an effect that it is difficult to emit the odor outside the cleaner.
[0059]
Also, when the inside of the communication passage 145 and the inside of the cyclone outlet 146 becomes dirty, the dust collecting case 105 can be easily cleaned with the dust collecting case 105 taken out.
[0060]
Further, since the inlet pipe 115 and the inner cylinder 131 of the cyclone separator 104 are provided below, the communication port 117 of the cyclone separator 104 and the upper opening 118 of the dust collecting case 105 can be provided at the upper part, and the dust collecting case 105 can be provided. The dust that has entered falls down by gravity, so that it is possible to prevent the dust from leaking into the cyclone separation tube 104.
[0061]
Further, since the upper opening 118 of the dust collecting case 105 is disposed in front of the dust collecting case 105, when the cleaner body 1 is stored upright, the upper opening 118 of the dust collecting case 105 is closed. Since it is arranged above the dust case 105, it is possible to prevent the dust entering the dust collection case 105 from spilling into the cyclone separation tube 104.
[0062]
Further, since the dust collecting case 105 is disposed on the side surface of the cyclone separation tube 104, the length direction of the cyclone separation tube 104 can be lengthened without increasing the height of the vacuum cleaner main body 1, so that the dust due to the swirling flow can be increased. It has the feature that the separation ability can be increased.
[0063]
In addition, near the inlet pipe 115, when the electric blower 107 is stopped, the inlet pipe 115 is closed, and when the electric blower 107 is operated, the inlet pipe 115 and the cyclone separation cylinder 104 are communicated with each other. A valve that rotates toward the guide wall 137 of the inner cylinder 131 disposed in the cyclone separation cylinder 104 may be provided. In this case, it is possible to prevent the dust from spilling when the operation of the electric blower 107 is stopped and the cyclone separation tube 104 is taken out.
[0064]
As shown in FIG. 15, the cyclone separation tube 104 and the dust collecting case 105 may be provided integrally. In this case, the mass held by the hand at the time of throwing away the trash increases, and the handleability decreases. And the dust collecting case 105, and the exhaust port 120 and the communication passage 145 are integrally formed, so that complete airtightness is maintained, so that an increase in loss due to leakage or the like can be suppressed, and suction work can be performed. The rate can be made higher, and leakage and spillage of dust can be suppressed.
[0065]
Further, the communication passage 120, the communication passage 145, and the communication port 146 may be formed of separate members that come into contact with the lower case 101. However, when the inside of the communication passage becomes dirty, it cannot be easily cleaned. However, it is possible to reduce the number of places where the whole airtightness is maintained. In addition, since the direction in which airtightness is maintained can be set in the vertical direction, it is possible to provide a feature that airtightness is easily maintained.
[0066]
Although the separation chamber that separates dust from the dust-containing air has been described as the cyclone separation tube 104, the separation chamber is not limited to the cyclone separation tube 104, and an inlet portion through which the dust-containing air flows into the lower part of the separation chamber. A communication port leading to a dust collecting case placed on the side of the separation chamber is provided at the upper part of the separation chamber, and a guide plate for forming a flow for conveying air and dust from bottom to top inside the separation chamber is provided. With the provided vacuum cleaner, the hose connection port communicating with the inlet can also be arranged below the center of the separation chamber in the height direction. For this reason, since the hose connection port can be arranged at the lower part of the cleaner main body, when the cleaner main body is drawn around by the hand operation pipe through the hose, the cleaner main body is less likely to fall. , It can be pulled around stably.
[0067]
Hereinafter, a second embodiment of the present invention will be described with reference to the drawings. Here, FIG. 16 is an external perspective view of an upright type vacuum cleaner showing an embodiment of the present invention. FIG. 17 is a side view of the vacuum cleaner shown in FIG. Here, a cross section is partially shown to explain the flow of air. FIG. 18 is a longitudinal sectional view of a dust collecting section 460 in which the cyclone separating cylinder 404 and the dust collecting case 405 are integrated. Here, it is a longitudinal sectional view seen from the back side of the cleaner main body 301. FIG. 19 is a view of the dust collecting section 460 as viewed from the rear side of the cleaner main body 301. FIG. 20 is a sectional view showing a BB section of FIG.
[0068]
A suction port 305 opened toward the floor is rotatably attached to the vacuum cleaner main body 301 within a predetermined angle range, and a rotary brush 306 is provided in the suction port 305 facing the floor surface. . A dust collector 460 is detachably attached to the cleaner main body 301. The dust collecting section 460 includes a cyclone separating cylinder 404, a dust collecting case 405 arranged on a side of the cyclone separating cylinder 404, and a filter frame 440 on the cleaner main body 301 side of the dust collecting section 460. The frame 440 is provided rotatably. The electric blower (not shown) drives the rotating brush 306 in the suction port 305 and the blower of the electric blower by rotation of the rotating shaft of the electric blower. It is arranged below a certain dust collecting part 460. By the suction force of the electric blower, air is sucked from the suction port 305, dust is sucked on the suction air flow, and the sucked dust-containing air is collected at a side of the cyclone separation tube 404 through the joint pipe 304 and the hose 302. Dust is collected in the dust case 405. In addition, a grip portion 303 that is gripped by a user is provided at an upper portion of the cleaner main body 301, and the electric vacuum cleaner moves back and forth by operating the grip portion 303.
[0069]
The cleaner main body 301 separates dust by centrifugal separation by flowing dust-containing air from the inlet pipe 415 through the hose 302 into the cyclone separation cylinder 404 and turning the same, thereby separating the dust by the centrifugal action. The dust is conveyed to the dust collecting case 405 through 418. The exhaust gas from the cyclone separation tube 404 passes through the inner tube 431, and is exhausted to a communication passage 445 provided below the dust collection case 405 through an exhaust port 420 provided below the cyclone separation tube 404. Part of the air flows into the dust collecting case 405 and the first auxiliary filter 406 captures the dust. The exhaust gas from the dust collecting case 405 is exhausted from the dust collecting case exhaust port 444 through the first auxiliary filter 406, and is sucked into the electric blower through the second auxiliary filter 412. At this time, the exhaust gas from the cyclone separation tube 404 also passes through the communication passage 445 from the exhaust port 420, flows out of the cyclone outlet 446, passes through the second auxiliary filter 412, and is exhausted from the dust collecting case 405. At the same time, let it be sucked into the electric blower. After the exhaust air from the electric blower passes through a filter, the exhaust air is discharged to the outside through an exhaust port 307.
[0070]
The inlet pipe 415 of the cyclone separation tube 404 and the hose connection port 416 abut in an airtight state, the cyclone separation tube 404 and the inner tube 431 abut in an airtight state by an elastic seal 451, and the lower portion of the cyclone separation tube 404 is exhausted. The opening 420 and the communication passage 445 are in airtight contact with each other by the elastic seal 452, and the cyclone outlet 446 and the dust collecting case exhaust port 444 are connected to the cleaner main body 301 in which the second auxiliary filter 412 is stored. It is urged to abut the gap in an airtight state. The filter frame 440 includes an elastic seal 450 on the dust collecting case 405 and the communication passage 445 side, and on the cleaner main body 301 side. For this reason, when the dust collecting part 460 is attached to the cleaner main body 301, the dust collecting part 460 and the cleaner main body 301 are urged and attached so as to contact in an airtight state. Here, since air enters and exits between the cleaner main body 301 and the dust collecting part 460 in the front-rear direction of the cleaner main body 301, the airtight state applies a force in the front-rear direction of the cleaner main body 301. It has the characteristic that it is easy to be airtight. Here, when the dust collecting section 460 is pushed into the cleaner main body 301, the dust collecting section 460 is fixed to the cleaner main body 301 by a stopper 461 provided on the cleaner main body 301, and an airtight state is realized. As a result, dust leakage and spillage can be suppressed.
[0071]
Further, the axial direction of the cyclone separation tube 404 is inclined not obliquely but vertically, so that the length of the cyclone separation tube 404 in the axial direction can be increased without increasing the height direction of the vacuum cleaner 301, and the dust collecting performance can be increased. Can be improved.
[0072]
Further, the cyclone separation cylinder 404 and the dust collection case 405 can be separated and taken out from the cleaner main body 301 by holding the handle 423 and pressing the removal switch 462. On the exhaust side of the dust collecting case 405, a first auxiliary filter 406 and a filter frame 440 are provided.
[0073]
If a filter 406b such as a sponge, which collects a large amount of dust, is placed in the filter case 406a on the upstream side of the first auxiliary filter 406, dust can be prevented from being blown from the first auxiliary filter 406. At this time, if the filter 406b is made of a washable material such as an ether-based material, it is advantageous in handling. Further, if a net filter 406c subjected to antistatic treatment, which is insert-molded integrally with the filter case 406a, is provided on the upstream side of the filter 406b, the detachability of dust from the first auxiliary filter at the time of discarding dust increases. It is preferable because trash easily falls off. If the first auxiliary filter 406 is provided with a filter using a nonwoven fabric, a net filter, or the like, the leakage of dust from the dust collection case 405 can be further prevented. The first auxiliary filter 406 formed of a nonwoven fabric or the like can be easily handled by insert-molding the filter frame 440 integrally.
[0074]
If the second auxiliary filter 412 is made of non-woven fabric folded in a fold, the air passage area of the filter can be increased, so that the ventilation resistance can be reduced and the suction power can be increased. Further, the flow velocity of the air when passing through the filter can be reduced, so that the efficiency of capturing dust can be improved.
[0075]
Further, the second auxiliary filter 412 is divided into the cyclone outlet 446 side and the dust collection case outlet 444 side, and if the height of the fold of the filter on the cyclone outlet 446 side is increased, the cyclone separation cylinder The flow velocity when the exhaust gas from the 404 passes through the second auxiliary filter 412 can be further reduced, the ventilation resistance can be reduced, and the dust that cannot be separated and collected by the cyclone separation tube 404 can be efficiently collected. .
[0076]
The hose connection port 416 is located at the center in the width direction of the cleaner main body 301 when viewed from above, and is disposed on the back surface of the cleaner main body 301. The center axis of the cyclone separation tube 104 is shifted from the center in the width direction of the cleaner main body 301, and an inlet pipe 415 for allowing air to flow in a substantially tangential direction of the cyclone separation tube 404 is disposed at an end of the dust collection unit 460. Have been. That is, when the dust collecting unit 460 is attached to the cleaner main body 301, dust-containing air flows into the inlet pipe 415 from the rear side of the cleaner main body 301 and from the left and right ends. Further, the dust collecting case 405 is disposed on a side surface of the cyclone separation tube 404 on a side opposite to a width direction of the cyclone separation tube 404 with respect to a center axis of the cleaner main body 301. In addition, the exhaust air from the dust collecting unit 460 is a flow path in which the air that has passed through the first auxiliary filter 406 and the air that has flowed out from the cyclone outlet 446 join and communicate with the back side of the cleaner body. Configuration. With such an arrangement, the length of the main body can be shortened, and a small size and light weight can be achieved.
[0077]
Further, the cyclone separation cylinder 404 is disposed on the left side when viewed from the front with respect to the center axis in the left-right direction of the cleaner main body 301, and the first auxiliary filter 406, the second auxiliary filter 412, and the inflow of the electric blower are provided on the right side. By arranging the side and the side, the air flow path from the second auxiliary filter 412 to the electric blower can be shortened, so that the loss due to friction can be reduced. At this time, the timing belt for driving the rotary brush 306 disposed in the suction port 305 may be disposed on the left side which is the cyclone separation cylinder 404 side. Note that the same effect can be obtained by symmetrically exchanging the components arranged on the right side and those arranged on the left side.
[0078]
Here, the direction in which the dust centrifuged by the cyclone separation tube 404 flows out of the cyclone separation tube 404 through the communication port 417 is the turning direction in the cyclone separation tube 404 and the tangential direction of the cyclone separation tube 404. is there. For this reason, in the present embodiment, both the communication port 417 of the cyclone separation cylinder 404 and the upper opening 418 of the dust collection case 405 communicating with the communication port 417 open and close the first inside of the dust collection case 405. It can be arranged on the front side of the cleaner main body 301 farthest from the auxiliary filter 406 (the side opposite to the hose connection port 416). Here, the dust centrifuged in the cyclone separation tube 404 is deposited near the first auxiliary filter 406 that opens and closes, and the communication port 417 of the cyclone separation tube 404 and the dust collection case 405 communicating with the communication port 417 are collected. Since the dust is successively accumulated while being compressed toward the upper opening 418, the dust is unlikely to block the communication port 417 and the upper opening 418 until the dust is filled in the dust collecting case 405. Can accumulate dust. That is, the volume of the dust collecting case 405 can be effectively used.
[0079]
In addition, since the first auxiliary filter 406 is attached to a location near the back side of the cleaner main body 301 in the dust collecting section 460, the filter area of the first auxiliary filter 406 is reduced by the area of the dust collecting section 460. Since it can be made larger than that provided in the lower part, the ventilation resistance of the dust collecting part 460 can be reduced, and the loss can be reduced.
[0080]
Here, the ribs 456 and 457 are arranged in the dust collecting case 405 to suppress the vortex generated in the dust collecting case 405. For this reason, it is possible to suppress the dust that has flowed into the dust collection case 405 from flowing into the cyclone separation cylinder 404 again. Since dust can be prevented from re-scattering to the cyclone separation cylinder 404, dust collection efficiency can be improved. In addition, if the rib 457 is disposed on the bottom surface of the dust collecting case 405, the strength of the dust collecting case 405 can be improved. For this reason, the dust collecting case 405 can be made hard to deform, and the dust collected in the dust collecting case 405 can be prevented from spilling to the communication passage 445 side.
[0081]
In this configuration, more dust can be accumulated in the dust collecting case 405, so that the cycle of dust disposal can be lengthened. Also, since fine dust such as sand or soil is sandwiched and compressed by the fiber dust in the dust, it has a feature that it becomes difficult for the fine dust to fly up when trash is discarded.
[0082]
When the dust collecting unit 460 is attached to the cleaner main body 301, the communication port 417 and the upper opening 418 of the dust collecting case 405 can be disposed on the front side of the cleaner main body 301. 455 can be displayed. For this reason, the user can dispose of the refuse by referring to the refuse disposal line 455 disposed on the front side of the cleaner main body 301, which is a position that is easy to see. The garbage disposal line 455 is set as a line obliquely inclined from the degree of garbage, because when the garbage accumulates in the dust collecting case 405, the portion close to the upper opening 418 is finally filled with garbage.
[0083]
When the dust is discarded, the user holds the handle 423 of the dust collecting section 460 and presses the removal switch 462 to separate the dust collecting section 460 from the cleaner main body 301 and take it out. Next, the filter frame 440 is opened by pressing the lever 442 integrated with the clamp unit holding the filter frame 440, using the opening / closing shaft 443 of the filter frame 440 as a rotation axis. The cleaning of the first auxiliary filter 406 can be performed by washing the first auxiliary filter 406 or the like. At this time, since the dust collecting case 405 extends from the front side to the rear side (the filter frame 440 side) of the cleaner main body 301, it is easy to discard the dust accumulated in the dust collecting case 405, and the dust is It is difficult to remain in the dust collecting case 405.
[0084]
When the filters are clogged, the first auxiliary filter 406 is washed with water, air-dried, and used after being dried. The second auxiliary filter 412 is also taken out, washed with water, air-dried, and attached after being dried.
[0085]
The mesh filter 433 of the inner cylinder 431 removes the inner cylinder 431 from the outer cylinder 435 of the cyclone separation cylinder 404 and cleans it. After the cleaning, the inner cylinder 433 is attached again. In this way, dust is collected in the cyclone separation tube 404 when the dust is sucked so as to overflow the dust collection case 405. However, if the inner tube 431 is removed from the outer tube 435 of the cyclone separation tube 404, the dust is collected. Can be easily removed.
[0086]
The inner cylinder 431 includes a partition 432, a cylinder 434, and a guide wall 437, and a resin fiber net is formed integrally with the cylinder 434 as a mesh filter 433 by insert molding as a mesh filter 433. The mesh filter 433 may be formed in the cylindrical portion on the side surface, may be formed on the upper flat portion of the cylindrical portion, or may be formed by combining the upper flat surface of the cylindrical portion and the cylindrical portion on the side surface. . Here, the mesh filter 433 is not provided on the entire circumference of the cylindrical portion on the side surface of the inner cylinder 431, and the mesh filter 433 and the opening are not provided at about 90 degrees near the inlet pipe 415. Therefore, even if fine dust such as hair flows in from the inlet tube 415, it can be prevented from directly hitting the mesh filter 433, and can be prevented from being entangled by being stuck.
[0087]
Since the mesh filter 433 receives a force inward of the inner cylinder 431, a rib 436 of the inner cylinder may be provided on the inner diameter side of the mesh filter. Here, if the net filter 433 is subjected to an antistatic treatment, dust adhering to the net filter 433 is easily separated, and cleaning can be easily performed.
[0088]
Here, the partition wall 432 of the inner cylinder 431 is formed so as to be spirally lifted in the winding direction of the rotation inside the cyclone separation cylinder 404 so as to lift the air flow in the cyclone separation cylinder 404 upward. . For this reason, the dust that has flowed into the cyclone separation tube 404 from the inlet pipe 415 rises along the spiral partition 432, turns inside the cyclone separation tube 404, is centrifugally separated, and has the communication port 417 and the upper opening. 418, and is conveyed to the dust collection case 405. As described above, since the partition 432 is lifted upward spirally, even in a vacuum cleaner operating at a low air flow, dust is given a strong action of rising inside the cyclone separation tube 404, and the dust is collected in the dust collection case 505. And the dust separation performance can be improved.
[0089]
Note that the height of the guide wall 437 is larger than the height of the inlet pipe 415. For this reason, the air flow flowing from the inlet pipe 415 and the air flow swirled in the cyclone separation tube 404 are less likely to interfere or mix with each other. Can be reduced. Further, if the cross-sectional shape of the inlet pipe 415 is a substantially rectangular shape with a rounded corner, when the air flow flows from the inlet pipe 415 into the cyclone separation pipe 404, the air flows into the outer pipe 435 and the partition 432 of the inner pipe 431. And the loss due to turbulence in the flow can be reduced.
[0090]
Here, the inner surface of the cyclone separation tube 404 or the inner surface of the dust collecting case 405 is subjected to a clear UV curing type coating treatment. Therefore, when the dust flows into the cyclone separation tube 404 and the dust is centrifugally separated and flows into the dust collection case 405, the dust is deposited on the surface inside the cyclone separation tube 404 and the inner surface of the dust collection case. Even in the case of collision and rubbing, the surface is hardly damaged and dirt is hardly adhered, and the abrasion resistance and stain resistance can be improved. Therefore, even when the outer cylinder 435 of the cyclone separation cylinder 404 and the dust collecting case 405 are made of a transparent plastic material, the degree of dust accumulation can be visually checked.
[0091]
Further, by forming the cyclone separation cylinder 404 and the dust collection case 405 using an antistatic resin agent or applying an antistatic agent to the surface, dust adheres to the cyclone separation cylinder 404 and the dust collection case 405. And the number of times of cleaning can be reduced.
[0092]
When the dust collecting part 460 is manufactured by integrally molding the cyclone separating cylinder 404 and the dust collecting case 405, the cyclone separating cylinder 404 slides a mold downward, and the dust collecting case 405 is moved from the handle 423 side. The mold may be slid along the rib 457 toward the first auxiliary filter 406 side. In this case, a space 419 is formed below the communication port 417. If this space 419 is formed as a concave portion having an opening on the front side of the cleaner body 301, the appearance becomes distorted, which is not preferable. In addition, this portion is near the handle 423, and when the handle 423 is held by hand, there is a problem that it is difficult to hold the handle 423. Therefore, the space 419 below the communication port may be configured as a space 419 having an opening below the dust collecting part 460.
[0093]
The outer tube 435 of the cyclone separation tube 404 is provided with an inlet pipe 415, which is an air intake, below the center of the length of the cyclone separation tube 404 in the central axis direction. It is installed so that air can enter in a substantially tangential direction. For this reason, the hose connection port 416 can be disposed below the cleaner main body 301, the length of the hose 302 can be shortened, and the effect of reducing loss such as friction can be obtained.
[0094]
A communication port 417 is provided above the center of the cyclone separation tube 404 to allow air to flow into the dust collection case 405 together with dust. An inner cylinder 431 is provided below the cyclone separation cylinder 404, and is connected to an exhaust port 420 at the lower part. Here, since the exhaust port 420 can be provided below the cyclone separation tube, the flow path to the electric blower can be shortened. With such an arrangement, the height of the cleaner main body 301 can be shortened, the size and weight can be reduced, and the effect of reducing loss such as friction can be obtained.
[0095]
【The invention's effect】
According to the present invention, a cyclone separation cylinder that generates an upward swirling flow, and a dust collection case having a filter inside on the side thereof are arranged and mounted on the cleaner body, so that a cyclone separation type collection that is easy to handle is small. A dust part can be realized.
[0096]
Small size, high dust collection (dust collection) performance by sucking air from below and exhausting it to the cyclone separation cylinder that exhausts to the lower side, and flowing a part of the exhaust to the filter provided in the lower part of the dust collection case. A cyclone-separated dust collector with a large dust capacity can be realized.
[0097]
Since the partition wall of the inner cylinder is spirally lifted upward, even in a vacuum cleaner operating at a low air flow, dust is given a strong action of rising inside the cyclone separation cylinder, and the dust can be transported to the dust collection case. It is possible.
[0098]
Further, it is possible to reduce the interference and mixing loss of the airflow flowing into the cyclone separation tube from the inlet pipe.
[Brief description of the drawings]
FIG. 1 is an external perspective view of a vacuum cleaner showing an embodiment of the present invention.
FIG. 2 is a perspective view of a cleaner main body in the electric vacuum cleaner shown in FIG.
FIG. 3 is a perspective view showing a state in which an upper cover of a vacuum cleaner main body in the vacuum cleaner shown in FIG. 1 is opened.
FIG. 4 is a perspective view showing a state in which an upper lid of the vacuum cleaner main body in the vacuum cleaner shown in FIG. 1 is opened and a dust collecting case is removed.
5 is a perspective view showing a state in which an upper cover in a vacuum cleaner main body in the vacuum cleaner shown in FIG. 1 is opened, and a dust collecting case and a cyclone separation tube are removed.
FIG. 6 is a plan view showing a state in which an upper case and an upper lid of the cleaner body are removed.
FIG. 7 is a schematic diagram showing a flow of air.
FIG. 8 is an external perspective view of the cyclone separation tube 104.
9 is an external perspective view of the dust collecting case 105. FIG.
FIG. 10 is a sectional view showing an AA section in FIG. 6;
FIG. 11 is a sectional view including an inlet pipe portion of the cyclone separation tube 104.
FIG. 12 is a cross-sectional view including a communication port 117 between the cyclone separation cylinder 104 and the dust collecting case 105.
FIG. 13 is a side view when the dust collecting case 105 is viewed from the exhaust side.
14 is a perspective view of the inner cylinder 131. FIG.
FIG. 15 is an external perspective view when the cyclone separation cylinder 104 and the dust collection case 105 are integrated.
FIG. 16 is an external perspective view of an upright type vacuum cleaner showing an embodiment of the present invention.
17 is a side view of the electric vacuum cleaner shown in FIG.
FIG. 18 is a longitudinal sectional view of a dust collecting section 460 in which the cyclone separating cylinder 404 and the dust collecting case 405 are integrated.
FIG. 19 is a view of the dust collecting section 460 as viewed from the rear side of the cleaner main body 301.
FIG. 20 is a cross-sectional view showing a BB cross section of FIG. 19;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Vacuum cleaner main body, 101 ... Lower case, 102 ... Upper lid, 103 ... Dust collecting part, 104 ... Cyclone separation cylinder, 105 ... Dust collecting case, 106 ... 1st auxiliary filter, 107 ... Electric blower, 112 ... 2nd , Auxiliary pipe, 115 ... inlet pipe, 117 ... communication port, 120 ... exhaust port, 131 ... inner cylinder, 132 ... partition wall, 145 ... communication passage, 146 ... cyclone outlet, 150 ... upper case, 404 ... cyclone separation cylinder , 405: dust collection case, 406: first auxiliary filter, 412: second auxiliary filter, 415: inlet pipe, 417 ... communication port, 420 ... exhaust port, 431 ... inner cylinder, 432 ... partition wall

Claims (5)

Vacuum cleaner provided with an inlet for flowing dust-containing air at the lower part of the separation chamber for separating dust from dust-containing air, and a communication port at the upper part of the separation chamber to the dust collection case placed on the side of the separation chamber At
A vacuum cleaner having a guide plate for forming a flow from bottom to top inside the separation chamber. At the lower part of the cyclone separation tube that removes dust-containing air by centrifugal separation, the inlet part through which dust-containing air flows, and at the upper part of this cyclone separation tube, the communication port to the dust collection case placed on the side of the cyclone separation tube In the provided vacuum cleaner,
An electric vacuum cleaner wherein a spiral partition wall is provided in a cylindrical portion of an inner cylinder provided inside the cyclone separation cylinder. In claim 2,
An electric vacuum cleaner wherein a spiral partition is disposed above a communication port at an inlet of a cyclone separation tube. At the lower part of the cyclone separation tube for removing dust-containing air by centrifugal separation and at the inlet part through which dust-containing air flows from the back side of the cleaner body, and at the exhaust port for exhausting the air removed from this cyclone separation tube, the cyclone separation. Provided at the lower part of the cylinder, provided at the upper part of the cyclone separation cylinder, a communication port to a dust collection case placed on the side of the cyclone separation cylinder, a built-in filter in the dust collection case, and air passing through the filter, In the vacuum cleaner having a flow path configuration in which the air that has flowed out from the exhaust port merges with the back side of the cleaner body,
An electric vacuum cleaner characterized in that an inlet of the cyclone separation tube is arranged at an end in the left-right direction of the main body of the electric vacuum cleaner. In claim 4,
A second filter is provided between the electric blower provided downstream of the cyclone separation cylinder, in which the exhaust port of the cyclone separation cylinder communicates with the air that has passed through the first filter incorporated in the dust collection case. In addition, the depth direction length of the second filter provided near the exhaust port of the cyclone separation tube in the second filter is set to the depth direction length of the second filter near the first filter. Vacuum cleaner characterized by being longer in comparison.

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