JP2004065698A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a small-sized and easy-to-handle vacuum cleaner provided with a dust collecting part of a cyclone separation type. <P>SOLUTION: A cyclone separation cylinder 104 for centrifuging and catching dust and a dust collecting case 105 having a first auxiliary filter 106 in the inside are independently attachably and detachably arranged side by side and mounted on the lower case 101 of a cleaner body 1 and a part of the exhaust of the cyclone separation cylinder 104 is made to flow through the dust collecting case 105 to a motor-driven blower 107. <P>COPYRIGHT: (C)2004,JPO

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 separation cylinder.
[0003]
A vacuum cleaner provided with a cyclone-separated dust collector is described in JP-A-2001-29288. 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 part in a vacuum cleaner, the dust separating device described in Japanese Patent Application Laid-Open No. H10-511880 has a cyclone separating cylinder having a double structure of an outer separating cylinder and an inner separating cylinder. It has been proposed to remove coarse dust by centrifugation in an outer separation cylinder and remove fine dust by centrifugation in an inner separation cylinder.
[0005]
[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.
[0006]
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.
[0007]
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.
When dust flows into the cyclone separation tube, the dust is centrifuged, and flows into the dust collection case, the dust collides with and rubs against the surface inside the cyclone separation tube and the inside surface of the dust collection case. The surface inside the cylinder or the inside of the dust collection case is damaged.
[0008]
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.
[0009]
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.
[0010]
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.
Still another object of the present invention is to provide an electric cleaning device provided with a cyclone-separated dust collecting part capable of preventing the surface inside the cyclone separating cylinder and the inner surface of the dust collecting case from being damaged by dust flowing into the cyclone separating cylinder. Is to propose a machine.
[0011]
[Means for Solving the Problems]
According to the present invention, the cyclone separator is arranged such that the center axis of the cyclone separator is substantially vertical, and an inlet pipe through which dust-containing air flows from a lower portion of the cyclone separator is provided, and dust is removed from the cyclone separator. An exhaust port for exhausting the air is provided at the lower part of the cyclone separation cylinder, and a communication port to a dust collection case placed on the side of the cyclone separation cylinder is provided at an upper part of the cyclone separation cylinder, and a part near the inlet pipe is provided. Except for the above, an opening and a net filter are provided on the side surface of the inner cylinder.
[0012]
In addition, an inlet pipe through which dust-containing air flows from a lower portion of the cyclone separator is provided, and an exhaust port for exhausting air removed from the cyclone separator is provided at a lower portion of the cyclone separator, and an upper portion of the cyclone separator is provided with a cyclone separator. In addition to providing a communication port to the dust collecting case placed on the side of the cylinder, near the inlet pipe, when the electric blower is stopped, the inlet pipe is closed, and when the electric blower is operated, the inner surface of the cyclone separation cylinder is closed. And a valve installed so as to close a part between the inner cylinder and the inner cylinder.
[0013]
Further, in a vacuum cleaner provided with a cyclone separation tube for removing dust-containing air sucked from a suction opening by centrifugal separation, the inner surface of the cyclone separation tube or the inner surface of the dust collection case is subjected to a clear UV curing type coating treatment. It is characterized by.
[0014]
The flow path in the hose joint communicating with the inlet pipe through which the dust-containing air flows into the cyclone separation tube is moved to one side from the central axis of the hose communicating with the hose joint, and the flow path area is reduced to reduce the flow passage area to the inlet pipe. It is characterized by communicating.
[0015]
Further, a cyclone separation cylinder having an inner cylinder having an exhaust port formed therein, and a dust collection case communicating with the cyclone separation cylinder through a communication port formed in the cyclone separation cylinder, and a filter is provided in the dust collection case. The air conditioner is characterized in that it has a flow path configuration in which air that has passed through the filter and air that has flowed out from the exhaust port merge.
[0016]
Further, by opening and closing the filter, dust accumulated in the dust collecting case can be discarded.
Further, the cyclone separation cylinder and the dust collection case are detachable.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
An 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 electric blower. 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, the cleaner body 1 separates dust by centrifugal separation by flowing dust-containing air from the inlet pipe 115 through the hose 2 into the 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 air from the cyclone separation cylinder 104 passes through the inner cylinder 131 and is exhausted to the communication passage 120 provided below the cyclone separation cylinder 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 from the communication port 146 behind the first auxiliary filter 106 through the second auxiliary filter 112. At this time, the exhaust from the cyclone separation cylinder 104 is also sucked into the electric blower 107 together. 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 108 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 communication passage 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 contact port 146 and the filter case 113 in which the second auxiliary filter is stored are urged so as to contact in an airtight state. The axial direction of the cyclone separation tube 104 is vertical in the floor moving cleaning state, but may be inclined not obliquely but vertically.
[0024]
When the upper lid 102 is opened upward, the cyclone separation cylinder 104 and the dust collecting case 105 slightly float from the lower case 101. In this state, the user can hold the handle 123 on the upper part of the dust collecting case 105 to separate the dust collecting case 105 and take it out. By opening the first auxiliary filter 106 in the dust collecting case 105, the dust collecting case 105 is opened. Discard the dust inside.
[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.
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, when dust flows into the cyclone separation tube 104 and the dust is centrifugally separated and flows into the dust collection case 105, the dust collides with the surface inside the cyclone separation tube 104 and the inside surface of the dust collection case. Even in the case of rubbing, the surface is hardly damaged and dirt is hardly adhered, and the abrasion resistance and stain resistance can be improved. For this reason, 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.
[0026]
In addition, the cyclone separation cylinder 104 and the dust collection case 105 are molded using an antistatic resin agent, or the surface is coated with an antistatic agent, so that dust adheres to the cyclone separation cylinder 104 and the dust collection case 105. And the number of times of cleaning can be reduced.
[0027]
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, the center axis of the cyclone separation tube 104 is shifted from the center in the width direction, and air flows in a substantially tangential direction of the cyclone separation tube 104. The inlet pipe 115 to be connected and the hose connection port 116 are arranged in a straight line. 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.
[0028]
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, an effect of reducing loss can be obtained.
[0029]
Here, the details of the cyclone separation cylinder 104 and the dust collection case 105 will be described with reference to FIGS. 8 to 13 and 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 separation cylinder 104 and the dust collecting case 105, and FIG. 13 is a side view when the dust collecting case 105 is viewed from the exhaust side. FIG. 15 is a cross-sectional view including the inlet pipe 115 of the cyclone separation tube 104 and the valve 137. FIG. 16 is a sectional view including a portion of the inlet pipe 115 of the cyclone separation tube 104 and the hose joint 200.
[0030]
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 communication passage 120. The inner cylinder 131 is composed of a partition wall 132 and a cylinder part 134, and a resin fiber net is formed in the cylinder part 134 as a net filter 133 by insert molding integrally with the cylinder part 134. 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 113 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.
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.
Here, as shown in FIG. 16, the flow path in the hose joint 200 communicating with the inlet pipe 115 through which the dust-containing air flows into the cyclone separation cylinder 104 is moved from the central axis 202 of the hose 2 communicating with the hose joint 200. The hose is moved to one side by a hose joint rib 201, and the flow passage area is reduced to communicate with the inlet pipe 115.
In addition, since the hose joint rib 201 narrows the flow path on the upstream side through a tapered portion, it is not affected by the separation of the flow, so that the increase in loss can be suppressed and the flow with little turbulence can be suppressed. Enter the cyclone separation tube 104, so that the centrifugal action of the cyclone separation tube 104 can be more effectively promoted.
Therefore, the flow velocity of the air from the hose 2 can be increased without increasing the loss due to the rapid contraction at the inlet pipe 115, so that the flow velocity in the cyclone separation cylinder 104 can be improved, and the inside of the cyclone separation cylinder 104 can be increased. By turning, the effect of centrifugal separation of dust becomes stronger, and the dust collection efficiency can be improved.
In addition, the flow rate of the inlet pipe 115 can be increased without increasing the length of the inlet pipe 115, so that the size of the cleaner body 1 can be reduced.
In addition, the flow path in the hose joint 200 communicating with the inlet pipe 115 through which the dust-containing air flows into the cyclone separation tube 104 is moved to one side from the center shaft 202 of the hose 2 communicating with the hose joint 200 by the hose joint rib 201. It is desirable to arrange the hose joint rib 201 so that the inlet pipe 115 can be arranged on the outer diameter side of the outer cylinder 135 because the flow rate in the cyclone separation cylinder 104 can be further improved. Here, the hose joint rib 201 is provided in a substantially vertical direction.
If a space 203 is provided in the hose joint 200 and the end of the cyclone separation tube 104 on the inlet tube 115 side is opened, molding can be facilitated. Furthermore, if the space 203 of the hose joint 200 and the joint on the inlet pipe 115 side are communicated so as to be airtight, dust can be prevented from entering the space 203.
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.
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.
[0031]
The cyclone separation cylinder 104 is separated into an outer cylinder 135, an inner cylinder 131, and a member forming a communication passage 120, each of which is detachably fitted, and each member is in contact with hermetically sealed. 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 communication passage 120 from each other.
[0032]
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.
[0033]
At the time of littering, the user holds the handle 123 on the upper part of the dust collecting case 105, lifts the dust collecting case 105, pulls the lever 142 integrated with the clamp unit holding the filter frame 140 forward, and pulls out the filter frame 140. Open and do. 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.
[0034]
As the auxiliary filter 106, it is desirable to use a sponge made of foamable washable plastic, a washable nonwoven fabric, or a washable filter paper material.
[0035]
When the first auxiliary filter 106 and the second auxiliary filter 112 are subjected to an antistatic treatment, dust adhering to the first auxiliary filter 106 and the second auxiliary filter 112 is easily separated, so that cleaning can be easily performed. Become.
[0036]
A communication passage 145 and a communication port 146 are provided integrally below the dust collecting case 105. Accordingly, the dust collecting case 105 is divided into a main case 141, a communication passage 145, and a communication port 146 at a lower portion of the filter frame 140. I have. Further, it is in contact with the communication passage 120 of the cyclone separation tube 104 while keeping the airtight.
[0037]
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.
[0038]
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 communication passage 120 through the mesh filter 133. The mesh filter 133 functions to prevent dust such as fiber dust and paper from blowing through.
[0039]
The air from the communication passage 120 flows to the second auxiliary filter 112 via the communication passage 145 and the communication port 146.
[0040]
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 auxiliary filter flows toward the second auxiliary filter.
[0041]
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.
[0042]
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, a dust disposal line 155 is provided in the dust collecting case 105 at a position opposite to the upper opening 118, so that the user can dispose of the waste with reference to the waste disposal line 155. The garbage disposal line is not directed 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 from the degree of garbage collection. You have set.
[0043]
In this embodiment, since the flow of air in the cleaner body 1 is divided into two paths as shown in FIG. 7, a pressure difference is created between the dust in the dust collecting case 105 and 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. Therefore, more dust can be accumulated in the dust collection case 105, and the cycle of dust disposal can be lengthened.
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.
[0044]
Further, since the flow rate on the exhaust side 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.
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.
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.
Furthermore, when dust adheres to the net filter 133 of the inner cylinder 131, the amount of air exhausted from the communication port 146, which is the second exhaust port for exhausting the air removed from the cyclone separation cylinder 104, decreases. The air volume of the first exhaust port 144, which is the exhaust port from the dust collecting case 105, that has passed through the first auxiliary filter 106 increases. Therefore, the dust attached to the mesh filter 133 of the inner cylinder 131 is transported to the dust collecting case 105.
Further, the cross-sectional area of the first exhaust port 144, which is the exhaust port from the dust collection case 105 that has passed through the first auxiliary filter 106, is exhausted from the dust collection case 105 by removing the air that has been dust-removed from the cyclone separation cylinder 104. It is larger than the cross-sectional area of the communication port 146 which is the second exhaust port. For this reason, 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.
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.
[0045]
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.
[0046]
Also, when the inside of the communication passage 145 and the communication port 146 becomes dirty, the dust collection case 105 can be easily cleaned with the dust collection case 105 removed.
[0047]
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.
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.
[0048]
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.
[0049]
As shown in FIG. 15, 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 outer cylinder 135 of the cyclone separation cylinder 104 is closed. A valve 137 is provided so as to close a part of the inner surface and the inner cylinder.
For this reason, it is hard to receive a fluid force such as a ring, and heavy dust collides with the valve 137 and stops turning. Therefore, it is possible to prevent the inner wall surface of the outer cylinder 135 from being damaged or damaged.
Further, 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.
In addition, since the heavy dust which is hardly subjected to the fluid force does not enter the dust collecting case 105 from the cyclone separating cylinder 104, the dust does not break the first auxiliary filter 106 of the dust collecting case 105, and the dust is not removed from the dust collecting case 105. Can be prevented from falling off.
[0050]
As shown in FIG. 14, the cyclone separation tube 104 and the dust collecting case 105 may be provided integrally. In this case, the weight held by hand at the time of throwing away the trash increases, and the handleability decreases. And the dust collecting case 105, and the communication passage 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 suppressed. The rate can be higher.
[0051]
In addition, 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.
[0052]
【The invention's effect】
The present invention arranges a cyclone separation cylinder that generates an upward swirling flow, and a dust collection case having a filter inside the cyclone separation cylinder on its side, and is mounted on a vacuum cleaner main body, so that a cyclone separation type collection that is easy to handle is small. A dust part can be realized.
[0053]
In addition, the center axis of the cyclone separation cylinder is shifted to one side from the center of the main body, and the electric blower is arranged on the opposite side, so that the main body can be shortened.
[0054]
In addition, a small size, high dust collection (dust collection) performance is achieved by flowing a part of the exhaust into a dust collection case with a filter, and a cyclone separation cylinder that sucks air from below and exhausts it to the bottom. It is possible to realize a cyclone separation type dust collector having a large capacity.
[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 cleaner main body of the vacuum cleaner shown in FIG. 1 is opened, and a dust collection 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 cross-sectional view including a portion of an inlet pipe 115 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.
FIG. 14 is an external perspective view when the cyclone separation cylinder 104 and the dust collection case 105 are integrated.
FIG. 15 is a cross-sectional view including a portion of an inlet pipe 115 of a cyclone separation tube 104 and a valve 137.
FIG. 16 is a cross-sectional view including a portion of an inlet pipe 115 of the cyclone separation tube 104 and a hose joint 200.
[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 filters, 115: inlet pipe, 117: communication port, 120: communication passage, 131: inner cylinder, 145: communication passage, 146: communication port, 150: upper case.

Claims (5)

In a vacuum cleaner equipped with a cyclone separation tube that removes dust-containing air sucked from the suction port by centrifugation,
The cyclone separation tube is arranged so that the center axis of the cyclone separation tube is oriented substantially vertically in the floor moving cleaning state, and an inlet pipe through which dust-containing air flows from a lower portion of the cyclone separation tube is provided. An exhaust port for exhausting air from which dust has been removed is provided at the lower part of the cyclone separator, and at the upper part of the cyclone separator, a communication port to a dust collecting case placed on the side of the cyclone separator is provided, and near the inlet pipe. An electric vacuum cleaner characterized in that an opening and a net filter are provided on the side surface of the inner cylinder except for a part of the vacuum cleaner. In a vacuum cleaner equipped with a cyclone separation tube that removes dust-containing air sucked from the suction port by centrifugation,
The cyclone separation tube is arranged so that the center axis of the cyclone separation tube is oriented substantially vertically in the floor moving cleaning state, and an inlet pipe through which dust-containing air flows from a lower portion of the cyclone separation tube is provided. An exhaust port for exhausting air from which dust has been removed is provided at the lower part of the cyclone separator, and at the upper part of the cyclone separator, a communication port to a dust collecting case placed on the side of the cyclone separator is provided, and near the inlet pipe. In addition, when the electric blower is stopped, the inlet pipe is closed, and when the electric blower is operated, a valve installed to close a part of the inner surface of the cyclone separation cylinder and the inner cylinder is provided. Characterized vacuum cleaner. In a vacuum cleaner equipped with a cyclone separation tube that removes dust-containing air sucked from the suction port by centrifugation,
A vacuum cleaner, wherein an inner surface of the cyclone separation cylinder or an inner surface of the dust collecting case is subjected to a clear UV curing type coating treatment. In a vacuum cleaner equipped with a cyclone separation tube that removes dust-containing air sucked from the suction port by centrifugation,
The flow path in the hose joint communicating with the inlet pipe through which the dust-containing air flows into the cyclone separation tube is moved to one side from the center axis of the hose communicating with the hose joint, and the flow passage area is reduced to the inlet pipe. An electric vacuum cleaner characterized by communication. In any one of claims 1 to 4,
A cyclone separating cylinder having an inner cylinder having an exhaust port, and a dust collecting case communicating with the cyclone separating cylinder by a communication port formed in the cyclone separating cylinder, and a filter is built in the dust collecting case. A vacuum cleaner having a flow path configuration in which air that has passed through the filter and air that has flowed out of the exhaust port merge.

Images